/* roulang page: index */
:root{
  --ink:#151A18;
  --ink-2:#0E1211;
  --muted:#5F6B65;
  --bg:#F5F3EC;
  --card:#FFFFFF;
  --mist:#E8F2EC;
  --primary:#0F6B5B;
  --primary-dark:#0A4F44;
  --primary-light:#D9EEE7;
  --acid:#D9F45F;
  --line:#DDE5DF;
  --footer:#141816;
  --ok:#1F7A5C;
  --err:#B42318;
  --r-xl:28px;
  --r-lg:22px;
  --r-md:18px;
  --r-sm:14px;
  --shadow-1:0 4px 12px rgba(21,26,24,.05);
  --shadow-2:0 16px 40px rgba(21,26,24,.08);
  --shadow-3:0 24px 60px rgba(15,107,91,.14);
  --sp:clamp(48px,6vw,96px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.22;font-weight:700;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{display:block}
:focus-visible{outline:3px solid var(--acid);outline-offset:3px;border-radius:8px}
::selection{background:var(--acid);color:#16210F}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-sm);font-size:15px;font-weight:600;
  border:1px solid transparent;min-height:48px;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn svg{width:16px;height:16px;transition:transform .18s ease}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(15,107,91,.20)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 16px 32px rgba(15,107,91,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(15,107,91,.22)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--mist);border-color:var(--primary);color:var(--primary-dark);transform:translateY(-2px)}
.btn-acid{background:var(--acid);color:#17210F;border-color:transparent}
.btn-acid:hover{background:#E6FA8A;transform:translateY(-2px);box-shadow:0 14px 28px rgba(217,244,95,.28)}
.btn-link{padding:8px 0;min-height:auto;color:var(--primary);font-weight:600;background:none;border:0}
.btn-link svg{transition:transform .18s ease}
.btn-link:hover{color:var(--primary-dark)}
.btn-link:hover svg{transform:translateX(3px)}
.btn-sm{padding:9px 18px;font-size:14px;min-height:42px;border-radius:12px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.48;pointer-events:none;box-shadow:none}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:90;padding:16px 0;transition:padding .25s ease}
.site-header.is-scrolled{padding:8px 0}
.nav-card{
  display:flex;align-items:center;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:10px 14px 10px 18px;box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled .nav-card{box-shadow:var(--shadow-2)}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:13px;background:var(--ink);
  display:grid;place-items:center;color:var(--acid);flex:0 0 auto;
  box-shadow:inset 0 0 0 1px rgba(217,244,95,.18);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--ink)}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.14em;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;padding:9px 13px;border-radius:12px;
  font-size:14px;color:#3C4844;border:1px solid transparent;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.nav-item svg{width:15px;height:15px;opacity:.7;flex:0 0 auto}
.nav-item:hover{background:var(--mist);color:var(--primary-dark)}
.nav-item.active{
  background:var(--mist);color:var(--primary-dark);border-color:#C9E3D8;
  box-shadow:inset 0 -2px 0 var(--primary);font-weight:600;
}
.nav-item.active svg{opacity:1}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;place-items:center;color:var(--ink);
}
.nav-toggle:hover{background:var(--mist);border-color:var(--primary)}
.nav-toggle .bar{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.nav-toggle .bar::before,.nav-toggle .bar::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.nav-toggle .bar::before{top:-6px}
.nav-toggle .bar::after{top:6px}

/* ---------- Hero ---------- */
.hero{
  margin-top:24px;position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:radial-gradient(125% 140% at 10% 0%,#183A32 0%,#111A17 52%,#0B100E 100%);
  color:#EEF4F0;padding:clamp(32px,4.6vw,68px);
  box-shadow:0 30px 70px rgba(12,17,15,.28);
}
.hero::before{
  content:"";position:absolute;right:-160px;top:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,107,91,.55),transparent 68%);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:clamp(28px,4vw,56px);align-items:center;z-index:2}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;
  padding:7px 15px;border-radius:999px;border:1px solid rgba(217,244,95,.35);
  color:var(--acid);background:rgba(217,244,95,.08);
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--acid)}
.hero h1{
  margin-top:22px;font-size:clamp(2.1rem,4.4vw,3.55rem);line-height:1.18;color:#fff;
  letter-spacing:.01em;
}
.hero h1 .hl{color:var(--acid);position:relative;white-space:nowrap}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:.18em;border-radius:3px;
  background:rgba(217,244,95,.20);
}
.hero-lead{
  margin-top:20px;font-size:clamp(15px,1.5vw,17.5px);line-height:1.85;
  color:rgba(238,244,240,.76);max-width:34em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-actions .btn-ghost{background:rgba(255,255,255,.06);color:#EEF4F0;border-color:rgba(255,255,255,.20)}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:var(--acid);color:#fff}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:clamp(18px,3vw,44px);
  margin-top:38px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
}
.hero-stats .num{font-size:clamp(1.25rem,2vw,1.6rem);font-weight:700;color:#fff;letter-spacing:.01em}
.hero-stats .num em{font-style:normal;font-size:.72em;color:var(--acid);margin-left:2px}
.hero-stats .lbl{font-size:13px;color:rgba(238,244,240,.6);margin-top:2px}

.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:5/4;border:1px solid rgba(217,244,95,.16)}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(155deg,rgba(15,107,91,.50),rgba(11,16,14,.80));
}
.hero-phone{
  position:absolute;right:11%;bottom:8%;width:36%;aspect-ratio:9/17;
  border:2px solid rgba(217,244,95,.42);border-radius:20px;z-index:3;pointer-events:none;
}
.hero-phone::before{
  content:"";position:absolute;left:50%;top:9px;transform:translateX(-50%);
  width:30%;height:4px;border-radius:3px;background:rgba(217,244,95,.42);
}
.hero-dots{
  position:absolute;left:7%;top:10%;width:32%;aspect-ratio:1;z-index:3;opacity:.8;
  background-image:radial-gradient(rgba(217,244,95,.55) 1.6px,transparent 1.6px);
  background-size:14px 14px;pointer-events:none;
}
.hero-wave{position:absolute;left:0;right:0;bottom:0;height:70px;z-index:3;opacity:.35;pointer-events:none}

/* ---------- 品牌主张条 ---------- */
.pillars{display:grid;grid-template-columns:1.18fr 1fr 1fr .96fr;gap:16px;margin-top:20px}
.pillar{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 20px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pillar:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-2)}
.pillar .ico{
  width:36px;height:36px;border-radius:11px;background:var(--mist);color:var(--primary);
  display:grid;place-items:center;margin-bottom:14px;
}
.pillar h3{font-size:15.5px;font-weight:700;letter-spacing:.01em}
.pillar p{margin-top:7px;font-size:13.5px;color:var(--muted);line-height:1.7}
.pillar.is-accent{background:var(--ink);border-color:var(--ink);color:#fff}
.pillar.is-accent .ico{background:rgba(217,244,95,.16);color:var(--acid)}
.pillar.is-accent p{color:rgba(255,255,255,.66)}
.pillar.is-accent:hover{box-shadow:0 20px 44px rgba(12,17,15,.30)}

/* ---------- 区块通用 ---------- */
.section{padding:var(--sp) 0}
.section-mist{background:var(--mist)}
.section-head{max-width:760px;margin-bottom:44px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.12em;
  color:var(--primary);font-weight:600;margin-bottom:14px;
}
.section-tag::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px}
.section h2{font-size:clamp(1.75rem,3.2vw,2.55rem);line-height:1.24}
.section-lead{margin-top:16px;color:var(--muted);font-size:16.5px;line-height:1.85;max-width:44em}

/* ---------- 品牌故事双栏 ---------- */
.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,4.6vw,64px);align-items:center}
.story-copy p{max-width:620px;color:#3B4744;line-height:1.9;margin-top:18px;font-size:16.5px}
.story-copy p + p{margin-top:16px}
.feature-list{margin-top:28px;display:grid;gap:14px}
.feature-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:#33403C}
.feature-list .tick{
  width:24px;height:24px;border-radius:8px;background:var(--primary);color:#fff;
  display:grid;place-items:center;flex:0 0 auto;margin-top:2px;
}
.feature-list .tick svg{width:13px;height:13px}
.story-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px}
.story-media{position:relative}
.story-media img{width:100%;aspect-ratio:4/3.4;object-fit:cover;border-radius:var(--r-xl);border:1px solid var(--line);box-shadow:var(--shadow-2)}
.story-badge{
  position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:16px 20px;box-shadow:var(--shadow-2);max-width:230px;
}
.story-badge .k{font-size:12.5px;color:var(--muted);letter-spacing:.06em}
.story-badge .v{font-size:20px;font-weight:700;color:var(--primary-dark);margin-top:4px}
.story-badge .v em{font-style:normal;font-size:.7em;color:var(--muted);font-weight:400;margin-left:3px}

/* ---------- 精选 Bento ---------- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:minmax(0,auto);gap:22px}
.bento-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.bento-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-3)}
.bento-card figure{margin:0;overflow:hidden}
.bento-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.bento-card:hover img{transform:scale(1.03)}
.bento-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.chip{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  font-size:12px;letter-spacing:.06em;color:var(--primary-dark);
  background:var(--primary-light);border-radius:999px;padding:4px 11px;font-weight:600;
}
.bento-body h3{margin-top:14px;font-size:clamp(1.1rem,1.6vw,1.35rem);line-height:1.35}
.bento-body p{margin-top:10px;color:var(--muted);font-size:14.5px;line-height:1.78;flex:1}
.bento-link{margin-top:18px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.bento-link svg{width:15px;height:15px;transition:transform .18s ease}
.bento-card:hover .bento-link svg{transform:translateX(3px)}
.bento-a{grid-column:span 2;grid-row:span 2}
.bento-a figure{aspect-ratio:16/9}
.bento-b figure,.bento-c figure{aspect-ratio:16/10}
.bento-d{grid-column:span 3;flex-direction:row;align-items:stretch}
.bento-d figure{flex:0 0 38%;aspect-ratio:auto}
.bento-d .bento-body{justify-content:center}

/* ---------- 资讯列表（CMS 区） ---------- */
.news-wrap{display:grid;grid-template-columns:296px 1fr;gap:clamp(28px,4vw,48px);align-items:start}
.news-aside h2{font-size:clamp(1.6rem,2.6vw,2.15rem)}
.news-aside p{margin-top:16px;color:var(--muted);font-size:15.5px;line-height:1.85}
.news-aside .btn{margin-top:24px}
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.news-card{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:16px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:var(--shadow-2)}
.news-thumb{
  flex:0 0 96px;width:96px;height:96px;border-radius:13px;overflow:hidden;background:var(--mist);
}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{min-width:0;display:flex;flex-direction:column}
.news-body .chip{align-self:flex-start;font-size:11.5px;padding:3px 9px}
.news-body h3{
  margin-top:9px;font-size:15.5px;line-height:1.45;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  margin-top:7px;font-size:13.5px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:auto;padding-top:12px;font-size:12.5px;color:#8A968F;display:flex;gap:10px;align-items:center}
.news-meta .sep{width:1px;height:10px;background:var(--line)}
.news-empty{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;gap:14px;padding:56px 28px;background:#fff;border:1px dashed #C9D8D0;
  border-radius:var(--r-lg);
}
.news-empty .empty-ico{
  width:56px;height:56px;border-radius:18px;background:var(--mist);color:var(--primary);
  display:grid;place-items:center;
}
.news-empty p{color:var(--muted);font-size:15px}
.news-loading{height:96px;border-radius:var(--r-md);background:linear-gradient(90deg,#EEF2EE,#F7F9F6,#EEF2EE);background-size:200% 100%;animation:shimmer 1.4s linear infinite}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- 信任背书 ---------- */
.trust{
  background:linear-gradient(160deg,#16211D 0%,#0E1513 100%);
  border-radius:var(--r-xl);color:#EDF3EF;padding:clamp(36px,4.6vw,64px);
  box-shadow:0 30px 70px rgba(12,17,15,.24);position:relative;overflow:hidden;
}
.trust::before{
  content:"";position:absolute;left:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,107,91,.45),transparent 68%);
}
.trust-head{position:relative;max-width:640px}
.trust-head h2{color:#fff;font-size:clamp(1.7rem,3vw,2.4rem)}
.trust-head p{margin-top:14px;color:rgba(237,243,239,.68);font-size:16px;line-height:1.85}
.trust-stats{
  position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px;
}
.stat-card{
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-md);padding:22px 20px;
  transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.stat-card:hover{background:rgba(217,244,95,.08);border-color:rgba(217,244,95,.32);transform:translateY(-3px)}
.stat-card .n{font-size:clamp(1.6rem,2.6vw,2.1rem);font-weight:700;color:#fff;line-height:1.1}
.stat-card .n em{font-style:normal;font-size:.5em;color:var(--acid);margin-left:3px;font-weight:600}
.stat-card .t{margin-top:8px;font-size:13.5px;color:rgba(237,243,239,.62);line-height:1.6}
.quote-card{
  position:relative;margin-top:20px;background:rgba(217,244,95,.07);
  border:1px solid rgba(217,244,95,.24);border-radius:var(--r-lg);padding:clamp(24px,3vw,36px);
  display:flex;gap:22px;align-items:flex-start;
}
.quote-card .qmark{
  flex:0 0 auto;width:46px;height:46px;border-radius:14px;background:rgba(217,244,95,.16);
  color:var(--acid);display:grid;place-items:center;font-size:26px;font-weight:700;line-height:1;
}
.quote-card blockquote{margin:0;font-size:clamp(1rem,1.5vw,1.18rem);line-height:1.8;color:#F2F7F3}
.quote-card cite{display:block;margin-top:12px;font-style:normal;font-size:13.5px;color:rgba(237,243,239,.6)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(28px,4vw,56px);align-items:start}
.faq-aside p{margin-top:16px;color:var(--muted);font-size:15.5px;line-height:1.85;max-width:26em}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--primary);box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 22px;display:flex;align-items:center;gap:16px;
  font-weight:700;font-size:15.5px;line-height:1.55;color:var(--ink);
  transition:background-color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#FAFBF8}
.faq-item summary .plus{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:9px;background:var(--mist);
  color:var(--primary);display:grid;place-items:center;font-size:16px;font-weight:600;line-height:1;
  transition:background-color .2s ease,color .2s ease,transform .2s ease;
}
.faq-item[open] summary .plus{background:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-item .answer{padding:0 22px 22px;color:#48544F;font-size:15px;line-height:1.9;background:#FBFCF9}
.faq-item .answer p{padding-top:16px;border-top:1px solid var(--line)}

/* ---------- 订阅 CTA ---------- */
.cta-card{
  background:linear-gradient(150deg,#DCEFE7 0%,#E8F2EC 58%,#EFF6E2 100%);
  border:1px solid #CBE3D8;border-radius:var(--r-xl);padding:clamp(32px,4.4vw,60px);
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,56px);align-items:center;
  box-shadow:var(--shadow-1);
}
.cta-card h2{font-size:clamp(1.7rem,3vw,2.4rem);line-height:1.26;color:var(--primary-dark)}
.cta-card p{margin-top:16px;color:#3E4F49;font-size:16px;line-height:1.85;max-width:30em}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.sub-form input{
  flex:1 1 220px;min-width:0;height:52px;border-radius:13px;border:1px solid #BFD9CE;
  background:#fff;padding:0 16px;font-size:15px;color:var(--ink);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.sub-form input::placeholder{color:#93A29B}
.sub-form input:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(217,244,95,.65);
}
.sub-form input[aria-invalid="true"]{border-color:var(--err);box-shadow:0 0 0 3px rgba(180,35,24,.15)}
.form-note{margin-top:12px;font-size:13px;color:#5C6C65}
.form-msg{margin-top:12px;font-size:14px;font-weight:600;display:none}
.form-msg.ok{display:block;color:var(--ok)}
.form-msg.err{display:block;color:var(--err)}
.cta-side{
  background:#fff;border:1px solid #CBE3D8;border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--shadow-1);
}
.cta-side h3{font-size:16px;color:var(--ink)}
.cta-side ul{margin-top:14px;display:grid;gap:11px}
.cta-side li{display:flex;gap:10px;font-size:14.5px;color:#42514B;line-height:1.7}
.cta-side li .d{width:7px;height:7px;border-radius:50%;background:var(--primary);margin-top:9px;flex:0 0 auto}
.cta-side .btn{margin-top:20px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);color:#DCE5E0;margin-top:var(--sp);padding:clamp(48px,6vw,80px) 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:clamp(24px,3.4vw,48px)}
.brand--footer .brand-name{color:#fff}
.brand--footer .brand-sub{color:rgba(220,229,224,.55)}
.brand--footer .brand-mark{background:rgba(255,255,255,.07);box-shadow:inset 0 0 0 1px rgba(217,244,95,.22)}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.9;color:rgba(220,229,224,.62);max-width:26em}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.footer-tags span{
  font-size:12px;padding:5px 11px;border-radius:999px;
  border:1px solid rgba(255,255,255,.14);color:rgba(220,229,224,.72);
}
.footer-col h4{font-size:14px;letter-spacing:.1em;color:#fff;font-weight:600}
.footer-col ul{margin-top:16px;display:grid;gap:11px}
.footer-col a{font-size:14.5px;color:rgba(220,229,224,.66);transition:color .18s ease}
.footer-col a:hover{color:var(--acid)}
.footer-contact li{font-size:14.5px;color:rgba(220,229,224,.66);line-height:1.8}
.footer-contact .k{display:block;font-size:12.5px;color:rgba(220,229,224,.42);letter-spacing:.08em;margin-bottom:3px}
.footer-sub{margin-top:18px;display:flex;gap:8px}
.footer-sub input{
  flex:1 1 auto;min-width:0;height:44px;border-radius:11px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.05);padding:0 13px;color:#fff;font-size:14px;
}
.footer-sub input::placeholder{color:rgba(220,229,224,.42)}
.footer-sub input:focus{outline:none;border-color:var(--acid);box-shadow:0 0 0 3px rgba(217,244,95,.25)}
.footer-sub button{
  height:44px;padding:0 18px;border-radius:11px;background:var(--acid);color:#17210F;
  font-size:14px;font-weight:700;transition:background-color .18s ease,transform .18s ease;
}
.footer-sub button:hover{background:#E6FA8A;transform:translateY(-1px)}
.footer-bottom{
  margin-top:clamp(32px,4vw,52px);padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(220,229,224,.45);
}
.footer-bottom .domain{color:rgba(220,229,224,.55)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .container{padding:0 28px}
  .nav-item{padding:8px 10px;font-size:13.5px}
  .brand-sub{display:none}
  .pillars{grid-template-columns:1fr 1fr}
  .bento-a{grid-column:span 2}
  .bento-d{grid-column:span 3}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1100px){
  .nav-toggle{display:grid}
  .nav-links{
    display:none;position:static;width:100%;margin-left:0;
    grid-template-columns:repeat(2,1fr);gap:8px;padding-top:12px;margin-top:6px;
    border-top:1px solid var(--line);
  }
  .nav-card.open .nav-links{display:grid}
  .nav-card{flex-wrap:wrap}
  .nav-actions{margin-left:auto}
  .nav-links .nav-item{width:100%;justify-content:flex-start;padding:11px 12px;font-size:14px}
}
@media (max-width:992px){
  body{font-size:16px}
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{order:-1;aspect-ratio:16/10}
  .hero-phone{width:26%;right:8%;bottom:6%}
  .hero-dots{width:22%}
  .story-grid{grid-template-columns:1fr}
  .story-media{order:-1}
  .story-media img{aspect-ratio:16/10}
  .story-badge{left:auto;right:16px;bottom:-18px;position:relative;margin-top:-40px;right:16px}
  .bento{grid-template-columns:1fr 1fr}
  .bento-a{grid-column:span 2;grid-row:auto}
  .bento-d{grid-column:span 2;flex-direction:column}
  .bento-d figure{flex:none;aspect-ratio:16/9}
  .news-wrap{grid-template-columns:1fr}
  .news-aside{max-width:640px}
  .trust-stats{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .site-header{padding:10px 0}
  .hero{padding:26px 22px;border-radius:22px;margin-top:14px}
  .hero-stats{gap:20px}
  .pillars{grid-template-columns:1fr}
  .news-list{grid-template-columns:1fr}
  .quote-card{flex-direction:column;gap:14px}
  .footer-grid{grid-template-columns:1fr}
  .footer-sub{max-width:420px}
  .section-head{margin-bottom:32px}
}
@media (max-width:576px){
  .btn{width:100%}
  .btn-sm{width:auto}
  .hero-actions .btn,.story-actions .btn,.sub-form .btn,.cta-side .btn{width:100%}
  .hero h1{font-size:clamp(2rem,8vw,2.4rem)}
  .trust-stats{grid-template-columns:1fr 1fr}
  .bento{grid-template-columns:1fr}
  .bento-a,.bento-d{grid-column:span 1}
  .nav-card{padding:8px 10px 8px 12px}
  .brand-mark{width:36px;height:36px;border-radius:11px}
  .brand-name{font-size:16px}
  .news-card{flex-direction:column}
  .news-thumb{width:100%;flex:none;height:150px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (hover:none){
  .bento-card:hover,.pillar:hover,.news-card:hover,.stat-card:hover{transform:none}
  .bento-card:hover img{transform:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --ink:#151A18;
  --ink-2:#5F6B65;
  --bg:#F5F3EC;
  --card:#FFFFFF;
  --mist:#E8F2EC;
  --primary:#0F6B5B;
  --primary-dark:#0A4F44;
  --primary-light:#D9EEE7;
  --lemon:#D9F45F;
  --line:#DDE5DF;
  --footer:#141816;
  --ok:#1F7A5C;
  --err:#B42318;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --sh-1:0 4px 12px rgba(21,26,24,.05);
  --sh-2:0 16px 40px rgba(21,26,24,.08);
  --sh-3:0 24px 60px rgba(15,107,91,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:16px}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:3px solid var(--lemon);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:12px;
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(15,107,91,.22)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 16px 32px rgba(15,107,91,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(15,107,91,.24)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--mist);border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--primary);background:none;border:0;padding:0}
.btn-text .arrow{transition:transform .2s ease}
.btn-text:hover .arrow{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
}
.badge--lemon{background:var(--lemon);color:#1E2A12}
.badge--mist{background:var(--mist);color:var(--primary)}
.badge--line{border:1px solid rgba(255,255,255,.3);color:rgba(255,255,255,.82)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:16px 0;background:var(--bg);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(21,26,24,.07)}
.nav-card{
  position:relative;
  display:flex;align-items:center;gap:18px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);padding:11px 16px;
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled .nav-card{box-shadow:var(--sh-2)}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:13px;
  display:grid;place-items:center;background:var(--primary);color:var(--lemon);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-name{font-size:16.5px;font-weight:700;color:var(--ink);letter-spacing:.02em}
.brand-sub{font-size:11.5px;color:var(--ink-2);letter-spacing:.1em}
.nav-links{
  display:flex;align-items:center;gap:4px;
  list-style:none;margin-left:auto;
}
.nav-item{
  display:flex;align-items:center;gap:7px;
  padding:9px 12px;border-radius:13px;
  font-size:14.5px;font-weight:500;color:var(--ink-2);
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-item svg{width:17px;height:17px;flex:0 0 17px;opacity:.85}
.nav-item:hover{background:var(--mist);color:var(--primary)}
.nav-item.active{
  background:var(--mist);color:var(--primary);font-weight:600;
  box-shadow:inset 0 -2px 0 0 var(--primary);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:42px;padding:0 20px;border-radius:12px;
  background:var(--primary);color:#fff;font-size:14.5px;font-weight:600;
  white-space:nowrap;flex-shrink:0;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(15,107,91,.24)}
.nav-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:13px;
  background:var(--mist);border:1px solid var(--line);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--primary);transition:transform .22s ease,opacity .22s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;overflow:hidden;
  background:#121715;color:#F3F6F3;
  padding:46px 0 64px;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.2;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(120% 90% at 15% 0%,rgba(15,107,91,.55) 0%,rgba(18,23,21,0) 62%);
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(243,246,243,.62);margin-bottom:26px;
}
.breadcrumb a{color:rgba(243,246,243,.78);transition:color .2s ease}
.breadcrumb a:hover{color:var(--lemon)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#fff;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  font-size:clamp(1.95rem,3.6vw,2.95rem);
  line-height:1.26;letter-spacing:.01em;
  max-width:860px;margin:18px 0 0;
}
.article-lead{
  max-width:760px;margin-top:18px;
  font-size:16px;line-height:1.9;color:rgba(243,246,243,.74);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  margin-top:26px;font-size:13.5px;color:rgba(243,246,243,.66);
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(217,244,95,.75)}

/* ============ 正文布局 ============ */
.article-wrap{padding:64px 0 84px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:40px;align-items:start;
}
.article-body{
  min-width:0;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px 40px 42px;box-shadow:var(--sh-1);
}
.article-cover{margin:0 0 30px;border-radius:var(--r-sm);overflow:hidden;background:var(--mist)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{
  font-size:13px;color:var(--ink-2);padding:10px 4px 0;margin:0;
}

/* 长文排版 */
.prose{font-size:17px;line-height:1.9;color:#26302C;word-break:break-word}
.prose > *:first-child{margin-top:0}
.prose h2{
  font-size:clamp(1.35rem,2.2vw,1.7rem);
  line-height:1.4;margin:3.2rem 0 1rem;
  padding-left:14px;border-left:4px solid var(--primary);
  scroll-margin-top:110px;
}
.prose h3{
  font-size:clamp(1.1rem,1.8vw,1.3rem);
  line-height:1.5;margin:2.1rem 0 .7rem;color:var(--ink);
  scroll-margin-top:110px;
}
.prose p{margin:0 0 1em}
.prose a{color:var(--primary);border-bottom:1px solid rgba(15,107,91,.35);transition:color .2s ease,border-color .2s ease}
.prose a:hover{color:var(--primary-dark);border-color:var(--primary-dark)}
.prose strong{font-weight:700;color:var(--ink)}
.prose ul,.prose ol{padding-left:1.35em;margin:0 0 1.1em}
.prose li{margin:.42em 0}
.prose blockquote{
  margin:1.7em 0;padding:16px 22px;
  border-left:4px solid var(--primary);background:var(--mist);
  border-radius:0 14px 14px 0;color:#28403A;font-size:16.5px;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:16px;margin:1.6em 0;width:100%;height:auto}
.prose figure{margin:1.6em 0}
.prose figcaption{font-size:13.5px;color:var(--ink-2);text-align:center;margin-top:8px}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.prose code{
  background:var(--mist);color:var(--primary-dark);
  padding:2px 7px;border-radius:6px;font-size:.92em;
}
.prose pre{
  background:#121715;color:#E6EFE9;padding:18px 20px;border-radius:14px;
  overflow-x:auto;margin:1.6em 0;font-size:14px;line-height:1.7;
}
.prose pre code{background:none;color:inherit;padding:0}
.prose table{
  width:100%;border-collapse:collapse;font-size:15px;
  margin:1.6em 0;display:block;overflow-x:auto;white-space:nowrap;
}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.prose th{background:var(--mist);color:var(--primary-dark);font-weight:600}

/* 空态 */
.empty-state{
  text-align:center;padding:54px 24px;
  border:1px dashed var(--line);border-radius:var(--r-md);background:var(--mist);
}
.empty-state .empty-icon{
  width:54px;height:54px;margin:0 auto 16px;border-radius:16px;
  display:grid;place-items:center;background:#fff;color:var(--primary);
  border:1px solid var(--line);
}
.empty-state h2{font-size:1.35rem;margin-bottom:10px}
.empty-state p{color:var(--ink-2);max-width:440px;margin:0 auto 22px;font-size:15.5px}

/* ============ 侧栏 ============ */
.article-aside{position:sticky;top:96px;display:grid;gap:20px}
.aside-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1);
}
.aside-card h3{
  font-size:15px;margin:0 0 14px;
  display:flex;align-items:center;gap:8px;color:var(--ink);
}
.aside-card h3::before{
  content:"";width:6px;height:16px;border-radius:3px;background:var(--lemon);
}
.toc ol{list-style:none;display:grid;gap:2px}
.toc a{
  display:block;padding:8px 10px;border-radius:10px;
  font-size:14px;line-height:1.6;color:var(--ink-2);
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc a:hover{background:var(--mist);color:var(--primary);border-left-color:var(--primary)}
.toc a.toc-sub{padding-left:22px;font-size:13.5px}
.aside-links{display:grid;gap:10px}
.aside-links a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:11px 13px;border-radius:12px;background:var(--bg);
  font-size:14px;color:var(--ink);border:1px solid transparent;
  transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
}
.aside-links a:hover{background:var(--mist);border-color:var(--primary);color:var(--primary);transform:translateX(2px)}
.aside-links .tag{font-size:12px;color:var(--ink-2)}
.aside-cta{background:var(--mist);border-color:var(--primary-light)}
.aside-cta p{font-size:14px;color:#33514A;line-height:1.8;margin:0 0 16px}
.aside-cta .btn{width:100%}

/* ============ 相关推荐 ============ */
.related-section{padding:8px 0 24px}
.section-head{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px;margin-bottom:26px;
}
.section-head h2{font-size:clamp(1.35rem,2.2vw,1.7rem)}
.section-head p{font-size:14.5px;color:var(--ink-2);margin-top:6px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.related-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.related-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--sh-3)}
.related-card .thumb{overflow:hidden;background:var(--mist)}
.related-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease}
.related-card:hover .thumb img{transform:scale(1.03)}
.related-card .rc-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-card .rc-tag{font-size:12.5px;font-weight:600;color:var(--primary);letter-spacing:.02em}
.related-card h3{font-size:16.5px;line-height:1.55}
.related-card p{font-size:14px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card .rc-foot{
  margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-2);border-top:1px solid var(--line);
}
.related-card .rc-foot .go{color:var(--primary);font-weight:600}

/* ============ 返回 / CTA ============ */
.return-section{padding:26px 0 80px}
.return-card{
  background:var(--mist);border:1px solid var(--primary-light);
  border-radius:var(--r-lg);padding:36px 40px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.return-card h2{font-size:clamp(1.3rem,2vw,1.6rem);margin-bottom:8px}
.return-card p{font-size:15px;color:#33514A;max-width:560px}
.return-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:#DCE5E0;padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.brand--footer .brand-mark{background:rgba(217,244,95,.14);color:var(--lemon)}
.brand--footer .brand-name{color:#F1F6F3}
.brand--footer .brand-sub{color:rgba(220,229,224,.55)}
.footer-brand p{
  font-size:14.5px;line-height:1.9;color:rgba(220,229,224,.66);
  margin-top:16px;max-width:340px;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{
  font-size:12.5px;padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.06);color:rgba(220,229,224,.72);
  border:1px solid rgba(255,255,255,.08);
}
.footer-col h4{font-size:15px;color:#F1F6F3;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col li{font-size:14.5px;color:rgba(220,229,224,.7)}
.footer-col a{color:rgba(220,229,224,.7);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col a:hover{color:var(--lemon);transform:translateX(2px)}
.footer-contact .k{display:block;font-size:12.5px;color:rgba(220,229,224,.45);margin-bottom:2px}
.footer-sub{display:flex;gap:8px;margin-top:14px}
.footer-sub input{
  flex:1;min-width:0;height:46px;padding:0 14px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  color:#F1F6F3;font-size:14px;transition:border-color .2s ease,background .2s ease;
}
.footer-sub input::placeholder{color:rgba(220,229,224,.42)}
.footer-sub input:focus{outline:none;border-color:var(--lemon);background:rgba(255,255,255,.1)}
.footer-sub input[aria-invalid="true"]{border-color:#FF9B8F}
.footer-sub button{
  height:46px;padding:0 20px;border:0;border-radius:12px;
  background:var(--lemon);color:#1B2A14;font-size:14.5px;font-weight:700;
  transition:background .2s ease,transform .2s ease;
}
.footer-sub button:hover{background:#E6FF7A;transform:translateY(-2px)}
.form-msg{font-size:13px;margin-top:10px;min-height:18px;line-height:1.7}
.form-msg.error{color:#FF9B8F}
.form-msg.ok{color:#9BE6C4}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(220,229,224,.48);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{padding:0 26px}
  .nav-item{padding:9px 10px;font-size:14px}
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px}
}
@media (max-width:992px){
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
    padding:12px;box-shadow:0 24px 60px rgba(21,26,24,.16);
    margin-left:0;
  }
  .nav-links.open{display:grid}
  .nav-links li{width:100%}
  .nav-item{width:100%;justify-content:flex-start;padding:12px 14px;font-size:14.5px;background:var(--bg)}
  .nav-item.active{background:var(--mist)}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-aside{position:static;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .article-body{padding:30px 28px 34px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .return-card{padding:30px 26px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .site-header{padding:12px 0}
  .article-hero{padding:32px 0 46px}
  .article-lead{font-size:15px}
  .article-wrap{padding:44px 0 60px}
  .article-body{padding:24px 20px 30px}
  .prose{font-size:16.5px}
  .article-aside{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .return-section{padding:20px 0 56px}
  .section-head{align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand p{max-width:none}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:576px){
  .brand-name{font-size:15.5px}
  .brand-sub{font-size:11px}
  .aside-card{padding:18px}
  .article-hero h1{font-size:clamp(1.6rem,7vw,2.1rem)}
  .return-actions{width:100%}
  .return-actions .btn{width:100%}
  .footer-sub{flex-direction:column}
  .footer-sub button{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --ink:#151A18;
  --ink-2:#5F6B65;
  --bg:#F5F3EC;
  --card:#FFFFFF;
  --mist:#E8F2EC;
  --primary:#0F6B5B;
  --primary-dark:#0A4F44;
  --primary-soft:#D9EEE7;
  --lemon:#D9F45F;
  --line:#DDE5DF;
  --foot:#141816;
  --ok:#1F7A5C;
  --err:#B42318;
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-btn:12px;
  --sh-1:0 4px 12px rgba(21,26,24,.05);
  --sh-2:0 16px 40px rgba(21,26,24,.08);
  --sh-3:0 24px 60px rgba(15,107,91,.14);
  --sec-y:96px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--lemon);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 40px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:16px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--primary-dark);box-shadow:var(--sh-3);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--mist);border-color:var(--primary);transform:translateY(-2px)}
.btn-light{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.32)}
.btn-light:hover{background:rgba(255,255,255,.18);border-color:var(--lemon);transform:translateY(-2px)}
.btn-sm{min-height:42px;padding:0 18px;font-size:15px;border-radius:11px}
.btn-block{width:100%}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;color:var(--primary);font-size:16px;
  transition:gap .22s ease,color .22s ease;
}
.btn-text .arw{transition:transform .22s ease}
.btn-text:hover{color:var(--primary-dark)}
.btn-text:hover .arw{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}
.btn.is-loading{pointer-events:none;opacity:.8}
.btn.is-loading::after{
  content:"";width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(255,255,255,.4);border-top-color:#fff;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:16px 0 12px;
  background:var(--bg);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(21,26,24,.06)}
.nav-card{
  display:flex;
  align-items:center;
  gap:20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-2);
  padding:10px 14px 10px 18px;
}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  display:grid;place-items:center;
  background:var(--primary);color:#fff;
  box-shadow:0 6px 16px rgba(15,107,91,.26);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--ink)}
.brand-sub{font-size:11.5px;color:var(--ink-2);letter-spacing:.14em}

.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 12px;
  border-radius:11px;
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-2);
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.nav-item svg{width:17px;height:17px;flex-shrink:0;opacity:.85}
.nav-item:hover{background:var(--mist);color:var(--primary)}
.nav-item.active{
  background:var(--mist);
  color:var(--primary);
  box-shadow:inset 0 -2px 0 var(--primary);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  align-items:center;justify-content:center;
  color:var(--ink);
}
.nav-burger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.nav-burger span::before,.nav-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
  transition:transform .2s ease;
}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}

.nav-drawer{display:none}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-card{
  display:flex;align-items:center;gap:9px;
  padding:13px 14px;
  border:1px solid var(--line);
  border-radius:14px;
  background:#fff;
  font-size:14px;font-weight:600;color:var(--ink);
}
.drawer-card svg{width:17px;height:17px;color:var(--primary)}
.drawer-card.active{background:var(--mist);border-color:var(--primary-soft);color:var(--primary)}
.drawer-foot{margin-top:14px;display:grid;gap:10px}
.drawer-foot .tip{font-size:13px;color:var(--ink-2);text-align:center}

/* ============ 首屏 ============ */
.hero-wrap{padding-top:18px}
.hero-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--foot);
  color:#fff;
  padding:52px 52px 48px;
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:48px;
  align-items:center;
  isolation:isolate;
}
.hero-card::before{
  content:"";
  position:absolute;inset:0;z-index:-2;
  background:radial-gradient(circle at 82% 18%,rgba(217,244,95,.16),transparent 46%),
             radial-gradient(circle at 12% 88%,rgba(15,107,91,.5),transparent 58%),
             #141816;
}
.hero-card::after{
  content:"";
  position:absolute;inset:0;z-index:-1;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.5;
  mask-image:linear-gradient(to bottom right,#000,transparent 72%);
  -webkit-mask-image:linear-gradient(to bottom right,#000,transparent 72%);
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(232,242,236,.62);margin-bottom:18px;flex-wrap:wrap}
.crumbs a{transition:color .2s ease}
.crumbs a:hover{color:var(--lemon)}
.crumbs .sep{opacity:.5}
.crumbs .cur{color:rgba(232,242,236,.92)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(217,244,95,.42);
  color:var(--lemon);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  margin-bottom:20px;
}
.hero-card h1{
  font-size:clamp(2.05rem,4.2vw,3.4rem);
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.01em;
}
.hero-card h1 em{
  font-style:normal;
  color:var(--lemon);
  box-shadow:inset 0 -.28em 0 rgba(217,244,95,.22);
}
.hero-sub{
  margin-top:18px;
  max-width:34em;
  font-size:17.5px;
  line-height:1.85;
  color:rgba(232,242,236,.78);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-metrics{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-top:34px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.14);
}
.metric{padding-right:10px}
.metric b{display:block;font-size:26px;font-weight:700;letter-spacing:-.01em;color:#fff}
.metric b span{font-size:13px;font-weight:500;color:rgba(232,242,236,.7);margin-left:4px}
.metric p{font-size:13px;color:rgba(232,242,236,.62);margin-top:2px}

.hero-media{position:relative}
.hero-media .frame{
  position:relative;
  border-radius:22px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.16);
}
.hero-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  filter:saturate(.94) contrast(1.04);
}
.hero-media .frame::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(15,107,91,.36),rgba(20,24,22,.62));
}
.hero-media .phone-outline{
  position:absolute;
  right:-14px;bottom:-18px;
  width:112px;height:196px;
  border:2px solid rgba(217,244,95,.55);
  border-radius:26px;
  pointer-events:none;
}
.hero-media .phone-outline::after{
  content:"";position:absolute;left:50%;bottom:12px;transform:translateX(-50%);
  width:34px;height:4px;border-radius:4px;background:rgba(217,244,95,.55);
}
.hero-media .beat{
  position:absolute;left:-18px;top:-16px;
  display:flex;gap:6px;align-items:flex-end;height:44px;
}
.hero-media .beat i{width:5px;border-radius:3px;background:rgba(217,244,95,.72);display:block}
.hero-media .beat i:nth-child(1){height:14px}
.hero-media .beat i:nth-child(2){height:30px}
.hero-media .beat i:nth-child(3){height:20px}
.hero-media .beat i:nth-child(4){height:40px}
.hero-media .beat i:nth-child(5){height:18px}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-y) 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.16em;
  color:var(--primary);
  text-transform:none;
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px}
.sec-head h2{
  font-size:clamp(1.6rem,2.8vw,2.35rem);
  line-height:1.26;
  font-weight:700;
  letter-spacing:-.01em;
}
.sec-head p{color:var(--ink-2);font-size:16px;max-width:36em;margin-top:10px}
.sec-aside{font-size:15px;color:var(--ink-2);max-width:26em}
.sec-aside strong{color:var(--ink)}

/* ============ 参数徽章条 ============ */
.badge-strip{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  padding:18px 22px;
}
.badge-strip .label{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--ink-2)}
.chip{
  display:inline-flex;align-items:center;
  padding:7px 14px;
  border-radius:999px;
  background:var(--mist);
  color:var(--primary-dark);
  font-size:13.5px;
  font-weight:600;
  border:1px solid transparent;
  transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.chip:hover{background:var(--primary-soft);border-color:var(--primary-soft);transform:translateY(-1px)}
.chip--line{background:#fff;border-color:var(--line);color:var(--ink-2);font-weight:500}

/* ============ Bento ============ */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.b-card{
  grid-column:span 6;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
}
.b-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--primary-soft)}
.b-card .thumb{overflow:hidden;position:relative}
.b-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.b-card:hover .thumb img{transform:scale(1.02)}
.b-card .body{padding:26px 26px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.b-card h3{font-size:clamp(1.2rem,1.8vw,1.5rem);line-height:1.35;font-weight:700}
.b-card p{color:var(--ink-2);font-size:15.5px;line-height:1.85}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}
.tag{
  font-size:12.5px;font-weight:600;
  padding:5px 11px;border-radius:999px;
  border:1px solid var(--line);
  color:var(--ink-2);
  background:#FBFAF6;
}
.tag--primary{background:var(--primary-soft);border-color:var(--primary-soft);color:var(--primary-dark)}
.b-card .more{margin-top:8px}
.b-lg{grid-column:span 7}
.b-md{grid-column:span 5}
.b-sm-a{grid-column:span 5}
.b-sm-b{grid-column:span 7}
.b-lg .thumb img,.b-md .thumb img{aspect-ratio:16/9}
.b-sm-a .thumb img,.b-sm-b .thumb img{aspect-ratio:16/7}

/* ============ 参数速览表 ============ */
.table-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.table-scroll{overflow-x:auto}
table.spec{
  width:100%;
  border-collapse:collapse;
  min-width:820px;
  font-size:15px;
}
table.spec caption{
  caption-side:top;
  text-align:left;
  padding:20px 24px 0;
  font-size:13.5px;
  color:var(--ink-2);
}
table.spec thead th{
  text-align:left;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--ink-2);
  padding:18px 20px;
  border-bottom:1px solid var(--line);
  background:#FBFAF6;
  white-space:nowrap;
}
table.spec tbody td{
  padding:17px 20px;
  border-bottom:1px solid var(--line);
  color:var(--ink);
  vertical-align:middle;
}
table.spec tbody tr:last-child td{border-bottom:0}
table.spec tbody tr{transition:background-color .2s ease}
table.spec tbody tr:hover{background:#FAFCFA}
table.spec .model{font-weight:700;white-space:nowrap}
table.spec .model span{display:block;font-weight:400;font-size:12.5px;color:var(--ink-2);margin-top:2px}
table.spec .price{font-weight:700;color:var(--primary-dark);white-space:nowrap}
table.spec .fit{color:var(--ink-2);font-size:14px}
.table-note{
  padding:16px 24px 20px;
  font-size:13.5px;
  color:var(--ink-2);
  background:#FBFAF6;
  border-top:1px solid var(--line);
}

/* ============ 流程条 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  counter-reset:step;
}
.step{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:28px 26px;
  box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--primary-soft)}
.step .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;
  border-radius:12px;
  background:var(--mist);
  color:var(--primary);
  font-weight:700;
  font-size:15px;
  margin-bottom:16px;
}
.step h3{font-size:18px;font-weight:700;margin-bottom:8px}
.step p{font-size:15px;color:var(--ink-2);line-height:1.8}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:24px;align-items:start}
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--primary-soft);box-shadow:var(--sh-2)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  font-size:16.5px;
  font-weight:700;
  line-height:1.6;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary .sign{
  flex-shrink:0;
  width:26px;height:26px;
  border-radius:50%;
  border:1px solid var(--line);
  display:grid;place-items:center;
  font-size:16px;
  font-weight:600;
  color:var(--primary);
  transition:transform .2s ease,background-color .2s ease,border-color .2s ease;
}
.faq-item[open] summary .sign{background:var(--primary-soft);border-color:var(--primary-soft);transform:rotate(180deg)}
.faq-answer{
  padding:0 24px 22px;
  color:var(--ink-2);
  font-size:15.5px;
  line-height:1.85;
  background:#FBFAF6;
  border-top:1px dashed var(--line);
  padding-top:18px;
}
.faq-aside{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-2);
  padding:28px 26px;
  position:sticky;
  top:104px;
}
.faq-aside h3{font-size:19px;font-weight:700;margin-bottom:10px}
.faq-aside p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.faq-aside ul{margin:16px 0 22px;display:grid;gap:10px}
.faq-aside li{font-size:14.5px;color:var(--ink-2);display:flex;gap:9px;align-items:flex-start}
.faq-aside li::before{
  content:"";flex-shrink:0;width:7px;height:7px;border-radius:50%;
  background:var(--primary);margin-top:9px;
}

/* ============ CTA 区 ============ */
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--primary-soft);
  border:1px solid #CBE6DC;
  padding:48px 52px;
  display:grid;
  grid-template-columns:1fr .82fr;
  gap:44px;
  align-items:center;
}
.cta-card::before{
  content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,107,91,.14),transparent 68%);
}
.cta-card h2{font-size:clamp(1.55rem,2.6vw,2.15rem);line-height:1.3;font-weight:700;position:relative}
.cta-card p{color:#2C4C44;font-size:16px;margin-top:12px;max-width:30em;position:relative}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;position:relative}
.cta-form{
  position:relative;
  background:#fff;
  border:1px solid #CBE6DC;
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-1);
  display:grid;
  gap:14px;
}
.field{display:grid;gap:7px}
.field label{font-size:13.5px;font-weight:700;color:var(--ink)}
.field input,.field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  font-size:15px;
  line-height:1.6;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:88px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#9AA8A1}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(217,244,95,.6);
}
.field.has-error input,.field.has-error textarea{border-color:var(--err);box-shadow:0 0 0 3px rgba(180,35,24,.12)}
.form-msg{font-size:13.5px;color:var(--ink-2);min-height:20px}
.form-msg.is-error{color:var(--err)}
.form-msg.is-ok{color:var(--ok)}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sec-y);
  background:var(--foot);
  color:rgba(232,242,236,.78);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr .8fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.brand--footer .brand-mark{background:rgba(217,244,95,.16);color:var(--lemon);box-shadow:none}
.brand--footer .brand-name{color:#fff}
.brand--footer .brand-sub{color:rgba(232,242,236,.55)}
.footer-brand p{
  margin-top:16px;
  font-size:14.5px;
  line-height:1.85;
  color:rgba(232,242,236,.62);
  max-width:30em;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{
  font-size:12.5px;
  padding:5px 11px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.16);
  color:rgba(232,242,236,.72);
}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14.5px;color:rgba(232,242,236,.66);line-height:1.7}
.footer-col a{transition:color .2s ease}
.footer-col a:hover{color:var(--lemon)}
.footer-contact .k{
  display:inline-block;
  font-size:12.5px;
  color:rgba(232,242,236,.45);
  margin-right:10px;
  min-width:64px;
}
.footer-sub{display:flex;gap:8px;margin-top:14px}
.footer-sub input{
  flex:1;min-width:0;min-height:44px;
  padding:10px 13px;
  border-radius:11px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  color:#fff;
  font-size:14px;
}
.footer-sub input::placeholder{color:rgba(232,242,236,.4)}
.footer-sub input:focus{outline:none;border-color:var(--lemon);box-shadow:0 0 0 3px rgba(217,244,95,.28)}
.footer-sub button{
  min-height:44px;padding:0 18px;
  border-radius:11px;
  background:var(--lemon);
  color:#1B2411;
  font-size:14px;font-weight:700;
  transition:transform .2s ease,box-shadow .2s ease;
}
.footer-sub button:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(217,244,95,.22)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  padding-top:24px;
  font-size:13px;
  color:rgba(232,242,236,.45);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{padding:0 30px}
  .nav-item{padding:8px 9px;font-size:13.5px;gap:6px}
  .nav-item svg{width:15px;height:15px}
  .brand-sub{display:none}
  .hero-card{padding:44px 40px;gap:36px}
  .cta-card{padding:40px}
}
@media (max-width:992px){
  :root{--sec-y:72px}
  .nav-links{display:none}
  .nav-burger{display:inline-flex}
  .nav-card{gap:12px;padding:10px 12px}
  .nav-drawer{
    display:none;
    margin-top:12px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-md);
    box-shadow:var(--sh-2);
    padding:16px;
  }
  .nav-drawer.is-open{display:block}
  .nav-actions .btn{display:none}
  .hero-card{grid-template-columns:1fr;padding:38px 30px;gap:32px}
  .hero-media{order:-1}
  .hero-media .frame img{aspect-ratio:16/9}
  .hero-media .phone-outline{display:none}
  .hero-media .beat{left:auto;right:12px;top:-12px}
  .faq-layout{grid-template-columns:1fr}
  .faq-aside{position:static}
  .bento{gap:18px}
  .b-lg,.b-md,.b-sm-a,.b-sm-b{grid-column:span 12}
  .steps{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr;padding:34px 28px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sec-head{margin-bottom:30px}
}
@media (max-width:768px){
  body{font-size:16px}
  :root{--sec-y:60px}
  .container{padding:0 20px}
  .hero-card{padding:30px 22px;border-radius:22px}
  .hero-card h1{font-size:clamp(1.8rem,6.2vw,2.4rem)}
  .hero-sub{font-size:16px}
  .hero-metrics{grid-template-columns:1fr 1fr;gap:16px}
  .metric b{font-size:22px}
  .hero-cta .btn{width:100%}
  .badge-strip{padding:16px 18px;gap:9px}
  .badge-strip .label{width:100%}
  .b-card .body{padding:22px 20px}
  .b-lg .thumb img,.b-md .thumb img,.b-sm-a .thumb img,.b-sm-b .thumb img{aspect-ratio:16/9}
  table.spec{min-width:720px;font-size:14px}
  .table-note{font-size:13px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .faq-item summary{padding:17px 18px;font-size:15.5px}
  .faq-answer{padding:16px 18px 20px;font-size:15px}
}
@media (max-width:520px){
  :root{--sec-y:48px}
  .hero-card h1{font-size:1.72rem}
  .hero-metrics{grid-template-columns:1fr}
  .drawer-grid{grid-template-columns:1fr}
  .brand-name{font-size:15px}
  .btn{min-height:46px;padding:0 18px;font-size:15px}
  .btn-block-sm{width:100%}
  .sec-head h2{font-size:1.5rem}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --ink:#151A18;
  --ink-2:#5F6B65;
  --ink-3:#8A958F;
  --bg:#F5F3EC;
  --card:#FFFFFF;
  --mist:#E8F2EC;
  --primary:#0F6B5B;
  --primary-deep:#0A4F44;
  --primary-soft:#D9EEE7;
  --lime:#D9F45F;
  --line:#DDE5DF;
  --footer:#141816;
  --ok:#1F7A5C;
  --err:#B42318;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-btn:13px;
  --shadow-1:0 4px 12px rgba(21,26,24,.05);
  --shadow-2:0 16px 40px rgba(21,26,24,.08);
  --shadow-3:0 24px 60px rgba(15,107,91,.14);
  --dur:.28s;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid var(--lime);outline-offset:2px;border-radius:6px}
::selection{background:var(--lime);color:var(--ink)}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 36px}

/* 通用按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;
  transition:transform var(--dur) ease,box-shadow var(--dur) ease,background-color var(--dur) ease,border-color var(--dur) ease,color var(--dur) ease;
  min-height:46px;
}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(15,107,91,.20)}
.btn--primary:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:0 16px 32px rgba(15,107,91,.26)}
.btn--ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{background:var(--mist);border-color:var(--primary);transform:translateY(-2px)}
.btn--text{padding:6px 0;min-height:auto;color:var(--primary);font-weight:600;background:none}
.btn--text .arw{transition:transform var(--dur) ease}
.btn--text:hover .arw{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}
.btn.is-loading{position:relative;color:transparent}
.btn.is-loading::after{
  content:"";position:absolute;width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:18px 0 10px;
  transition:box-shadow var(--dur) ease;
}
.nav-card{
  position:relative;
  display:flex;align-items:center;gap:20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:11px 16px;
  box-shadow:var(--shadow-1);
  transition:box-shadow var(--dur) ease;
}
.site-header.is-stuck .nav-card{box-shadow:var(--shadow-2)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  background:linear-gradient(150deg,var(--primary) 0%,var(--primary-deep) 100%);
  color:var(--lime);display:grid;place-items:center;flex-shrink:0;
  box-shadow:0 6px 16px rgba(15,107,91,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.2px;color:var(--ink)}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:.6px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;border-radius:12px;
  font-size:14px;font-weight:500;color:var(--ink-2);
  border:1px solid transparent;
  transition:background-color var(--dur) ease,color var(--dur) ease,border-color var(--dur) ease;
  white-space:nowrap;
}
.nav-item svg{width:17px;height:17px;flex-shrink:0;opacity:.8}
.nav-item:hover{background:var(--mist);color:var(--primary);border-color:var(--primary-soft)}
.nav-item.active{
  background:var(--mist);color:var(--primary);font-weight:700;
  border-color:var(--primary-soft);
  box-shadow:inset 0 -2px 0 var(--primary);
}
.nav-cta{margin-left:10px;padding:11px 20px;font-size:14px;flex-shrink:0}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.nav-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);
  position:relative;transition:background var(--dur) ease;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);
  transition:transform var(--dur) ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* Hero */
.hero{padding:36px 0 8px}
.hero-grid{
  display:grid;grid-template-columns:6fr 5fr;gap:44px;align-items:center;
}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--primary);
  box-shadow:var(--shadow-1);
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(15,107,91,.12)}
.hero h1{
  margin-top:20px;
  font-size:clamp(2.1rem,3.8vw,3.35rem);
  line-height:1.22;letter-spacing:-.4px;font-weight:800;
}
.hero h1 .hl{
  color:var(--primary-deep);
  background:linear-gradient(180deg,transparent 62%,var(--lime) 62%,var(--lime) 92%,transparent 92%);
  padding:0 2px;
}
.hero-sub{margin-top:18px;font-size:17px;color:var(--ink-2);max-width:34em;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-metrics{
  display:flex;flex-wrap:wrap;gap:26px;margin-top:34px;padding-top:24px;
  border-top:1px solid var(--line);
}
.metric{min-width:112px}
.metric b{display:block;font-size:24px;font-weight:800;color:var(--primary-deep);line-height:1.3}
.metric span{font-size:13px;color:var(--ink-3)}
.hero-visual{position:relative}
.hero-visual .frame{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-2);position:relative;background:var(--mist);
  aspect-ratio:16/12;
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(15,107,91,.30) 0%,rgba(15,107,91,.02) 55%,rgba(21,26,24,.28) 100%);
}
.phone-outline{
  position:absolute;right:-16px;bottom:-18px;width:118px;height:220px;
  border:2px solid rgba(15,107,91,.35);border-radius:24px;pointer-events:none;
}
.beat{
  position:absolute;left:-18px;top:26px;display:grid;grid-template-columns:repeat(3,9px);gap:9px;opacity:.55;
}
.beat i{width:9px;height:9px;border-radius:50%;background:var(--primary)}
.beat i:nth-child(2),.beat i:nth-child(5){background:var(--lime)}
.hero-note{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.94);border-radius:14px;padding:10px 14px;
  font-size:13px;color:var(--ink-2);border:1px solid rgba(255,255,255,.7);
  box-shadow:var(--shadow-1);
}
.hero-note b{color:var(--primary-deep)}

/* 版块 */
.section{padding:76px 0}
.section--mist{background:var(--mist)}
.section--tight{padding:56px 0}
.section-head{max-width:44em;margin-bottom:38px}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.6px;
  color:var(--primary);text-transform:none;margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(1.6rem,2.7vw,2.35rem);line-height:1.28;font-weight:800;letter-spacing:-.2px;
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}

/* 场景条 */
.strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.strip-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:22px 20px;box-shadow:var(--shadow-1);
  transition:transform var(--dur) ease,box-shadow var(--dur) ease,border-color var(--dur) ease;
}
.strip-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--primary-soft)}
.strip-card .ic{
  width:40px;height:40px;border-radius:12px;background:var(--mist);color:var(--primary);
  display:grid;place-items:center;margin-bottom:14px;
}
.strip-card h3{font-size:16px;font-weight:700;margin-bottom:6px}
.strip-card p{font-size:14px;color:var(--ink-2);line-height:1.75}

/* Bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.bento-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow-1);
  transition:transform var(--dur) ease,box-shadow var(--dur) ease,border-color var(--dur) ease;
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);border-color:var(--primary-soft)}
.bento-card figure{margin:0;overflow:hidden;aspect-ratio:16/10;background:var(--mist)}
.bento-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.bento-card:hover img{transform:scale(1.03)}
.bento-body{padding:22px 24px 26px}
.bento-body h3{font-size:18px;font-weight:700;margin-bottom:10px;line-height:1.4}
.bento-body p{font-size:15px;color:var(--ink-2);line-height:1.8}
.bento-card--lg{grid-column:span 4}
.bento-card--sm{grid-column:span 2}
.bento-card--wide{grid-column:span 6;display:grid;grid-template-columns:5fr 6fr}
.bento-card--wide figure{aspect-ratio:auto;height:100%;min-height:230px}
.bento-card--wide .bento-body{display:flex;flex-direction:column;justify-content:center}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-block;padding:5px 11px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--mist);color:var(--primary-deep);border:1px solid var(--primary-soft);
}
.tag--lime{background:var(--lime);color:var(--ink);border-color:var(--lime)}

/* 左右交替图文 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split + .split{margin-top:64px}
.split-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-2);aspect-ratio:16/11;background:var(--mist)}
.split-media img{width:100%;height:100%;object-fit:cover}
.split h3{font-size:clamp(1.35rem,2.2vw,1.9rem);line-height:1.32;font-weight:800;margin-bottom:16px}
.split p{color:var(--ink-2);font-size:16px;margin-bottom:14px;max-width:40em}
.split--rev .split-media{order:2}
.check{display:grid;gap:10px;margin-top:20px}
.check li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink)}
.check .tick{
  width:20px;height:20px;border-radius:50%;background:var(--primary-soft);color:var(--primary-deep);
  display:grid;place-items:center;flex-shrink:0;margin-top:3px;font-size:12px;font-weight:800;
}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 24px 26px;box-shadow:var(--shadow-1);
  transition:transform var(--dur) ease,box-shadow var(--dur) ease,border-color var(--dur) ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--primary-soft)}
.step .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:13px;background:var(--primary);color:#fff;
  font-size:15px;font-weight:800;margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.8}

/* 深色属性面板 */
.panel{
  background:var(--footer);color:#E7EEE9;border-radius:var(--r-lg);
  padding:48px 44px;position:relative;overflow:hidden;
  border:1px solid #22302A;
}
.panel::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(217,244,95,.16) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.panel-head{position:relative;z-index:1;max-width:42em;margin-bottom:34px}
.panel-head span{font-size:12.5px;letter-spacing:1.8px;font-weight:700;color:var(--lime)}
.panel-head h2{font-size:clamp(1.5rem,2.5vw,2.1rem);line-height:1.3;margin-top:12px;font-weight:800;color:#fff}
.panel-head p{margin-top:12px;color:rgba(220,229,224,.72);font-size:15.5px}
.spec-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.spec{
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-sm);padding:22px 22px 20px;
  transition:border-color var(--dur) ease,background-color var(--dur) ease,transform var(--dur) ease;
}
.spec:hover{border-color:rgba(217,244,95,.45);background:rgba(255,255,255,.07);transform:translateY(-3px)}
.spec-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
.spec h3{font-size:16.5px;font-weight:700;color:#fff}
.spec .lv{
  font-size:12px;font-weight:700;color:var(--footer);background:var(--lime);
  padding:3px 10px;border-radius:999px;white-space:nowrap;
}
.spec p{font-size:14.5px;line-height:1.8;color:rgba(220,229,224,.76)}
.spec ul{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}
.spec ul li{
  font-size:12.5px;color:rgba(220,229,224,.85);
  border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:3px 10px;
}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:1fr 1.35fr;gap:48px;align-items:start}
.faq-side{position:sticky;top:110px}
.faq-side h2{font-size:clamp(1.5rem,2.5vw,2.1rem);line-height:1.3;font-weight:800}
.faq-side p{margin-top:14px;color:var(--ink-2);font-size:15.5px}
.faq-side .btn{margin-top:24px}
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;transition:border-color var(--dur) ease,box-shadow var(--dur) ease;
}
.faq-item.open{border-color:var(--primary-soft);box-shadow:var(--shadow-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:700;line-height:1.6;
  transition:color var(--dur) ease,background-color var(--dur) ease;
}
.faq-q:hover{color:var(--primary);background:#FBFAF6}
.faq-icon{
  flex-shrink:0;width:28px;height:28px;border-radius:9px;background:var(--mist);color:var(--primary);
  display:grid;place-items:center;font-size:17px;font-weight:700;line-height:1;
  transition:transform var(--dur) ease,background-color var(--dur) ease,color var(--dur) ease;
}
.faq-item.open .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-a{display:none;padding:0 22px 22px;color:var(--ink-2);font-size:15px;line-height:1.85}
.faq-item.open .faq-a{display:block}

/* CTA */
.cta-card{
  background:linear-gradient(150deg,#E3F2EC 0%,#D5EDE4 55%,#CDE9DF 100%);
  border:1px solid #C4E2D6;border-radius:var(--r-lg);
  padding:52px 48px;position:relative;overflow:hidden;
  box-shadow:var(--shadow-2);
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  border:2px solid rgba(15,107,91,.14);pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;position:relative;z-index:1}
.cta-card h2{font-size:clamp(1.55rem,2.7vw,2.2rem);line-height:1.28;font-weight:800;color:var(--primary-deep)}
.cta-card p{margin-top:14px;color:#3D554C;font-size:15.5px;max-width:32em}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.cta-points span{
  background:rgba(255,255,255,.78);border:1px solid rgba(15,107,91,.16);
  border-radius:999px;padding:6px 13px;font-size:13px;color:var(--primary-deep);font-weight:600;
}
.form-card{
  background:#fff;border:1px solid #C4E2D6;border-radius:var(--r-md);
  padding:26px;box-shadow:var(--shadow-2);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:700;color:var(--ink);margin-bottom:7px}
.field input,.field textarea,.field select{
  width:100%;min-height:50px;padding:12px 14px;border-radius:12px;
  border:1px solid var(--line);background:#FCFCFA;color:var(--ink);font-size:15px;
  transition:border-color var(--dur) ease,box-shadow var(--dur) ease,background-color var(--dur) ease;
}
.field textarea{min-height:88px;resize:vertical;line-height:1.7}
.field input:hover,.field textarea:hover,.field select:hover{border-color:#C6D4CC}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--primary);background:#fff;
  box-shadow:0 0 0 3px rgba(217,244,95,.55);
}
.field .hint{font-size:12.5px;color:var(--ink-3);margin-top:6px}
.field.error input,.field.error textarea{border-color:var(--err);background:#FDF6F5}
.field .err-msg{display:none;font-size:12.5px;color:var(--err);margin-top:6px}
.field.error .err-msg{display:block}
.form-card .btn{width:100%}
.form-msg{margin-top:12px;font-size:13.5px;color:var(--ok);min-height:20px;line-height:1.7}

/* 页脚 */
.site-footer{background:var(--footer);color:#DCE5E0;margin-top:80px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.1fr 1.2fr;gap:44px}
.brand--footer{margin-bottom:18px}
.brand--footer .brand-name{color:#fff}
.brand--footer .brand-sub{color:rgba(220,229,224,.55)}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(220,229,224,.66);max-width:26em}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{
  font-size:12.5px;padding:5px 11px;border-radius:999px;
  border:1px solid rgba(220,229,224,.20);color:rgba(220,229,224,.78);
}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.3px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14.5px;color:rgba(220,229,224,.72);transition:color var(--dur) ease,padding-left var(--dur) ease}
.footer-col a:hover{color:var(--lime);padding-left:3px}
.footer-contact li{font-size:14px;color:rgba(220,229,224,.78);display:flex;gap:10px;flex-wrap:wrap}
.footer-contact .k{color:rgba(220,229,224,.5);min-width:64px}
.footer-sub{display:flex;gap:8px;margin-top:14px}
.footer-sub input{
  flex:1;min-width:0;height:46px;padding:0 14px;border-radius:12px;
  border:1px solid rgba(220,229,224,.20);background:rgba(255,255,255,.06);color:#fff;font-size:14px;
  transition:border-color var(--dur) ease,background-color var(--dur) ease;
}
.footer-sub input::placeholder{color:rgba(220,229,224,.42)}
.footer-sub input:focus{outline:none;border-color:var(--lime);background:rgba(255,255,255,.10)}
.footer-sub button{
  height:46px;padding:0 20px;border-radius:12px;background:var(--lime);color:var(--footer);
  font-size:14px;font-weight:700;transition:transform var(--dur) ease,filter var(--dur) ease;
}
.footer-sub button:hover{filter:brightness(1.06);transform:translateY(-2px)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(220,229,224,.13);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(220,229,224,.48);
}

/* 响应式 */
@media (max-width:1200px){
  .container{padding:0 28px}
  .hero-grid{gap:34px}
  .brand-sub{display:none}
  .nav-item{padding:9px 11px;font-size:13.5px}
}
@media (max-width:992px){
  body{font-size:16px}
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:grid;grid-template-columns:1fr 1fr;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
    padding:14px;box-shadow:var(--shadow-2);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity var(--dur) ease,transform var(--dur) ease,visibility var(--dur) ease;
    margin-left:0;max-height:calc(100vh - 140px);overflow:auto;
  }
  .nav-links.open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-item{width:100%;justify-content:flex-start;padding:12px 13px;font-size:14px;background:#FBFAF6;border-color:var(--line)}
  .nav-item.active{background:var(--mist)}
  .nav-cta{display:none}
  .hero{padding:24px 0 0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-visual{order:-1}
  .phone-outline{display:none}
  .strip{grid-template-columns:repeat(2,1fr)}
  .bento{grid-template-columns:1fr}
  .bento-card--lg,.bento-card--sm,.bento-card--wide{grid-column:span 1}
  .bento-card--wide{grid-template-columns:1fr}
  .bento-card--wide figure{min-height:200px;aspect-ratio:16/10}
  .split{grid-template-columns:1fr;gap:28px}
  .split--rev .split-media{order:0}
  .steps{grid-template-columns:1fr}
  .spec-grid{grid-template-columns:1fr}
  .panel{padding:36px 26px}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-side{position:static}
  .cta-grid{grid-template-columns:1fr;gap:30px}
  .cta-card{padding:36px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:60px 0}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .hero-metrics{gap:20px}
  .metric{min-width:92px}
  .metric b{font-size:21px}
  .strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-col h4{margin-bottom:12px}
  .split + .split{margin-top:44px}
}
@media (max-width:576px){
  .hero h1{font-size:34px}
  .section{padding:48px 0}
  .section-head{margin-bottom:26px}
  .hero-actions .btn,.cta-card .btn{width:100%}
  .nav-links{grid-template-columns:1fr}
  .panel{padding:28px 20px}
  .form-card{padding:20px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-card{padding:28px 20px}
  .btn{min-height:44px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .btn:hover,.strip-card:hover,.bento-card:hover,.step:hover,.spec:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --ink:#151A18;
  --ink-2:#5F6B65;
  --bg:#F5F3EC;
  --card:#FFFFFF;
  --mist:#E8F2EC;
  --primary:#0F6B5B;
  --primary-dark:#0A4F44;
  --primary-light:#D9EEE7;
  --lime:#D9F45F;
  --line:#DDE5DF;
  --footer:#141816;
  --success:#1F7A5C;
  --error:#B42318;
  --r-xl:26px;
  --r-lg:22px;
  --r-md:18px;
  --r-sm:14px;
  --r-btn:13px;
  --shadow-1:0 4px 12px rgba(21,26,24,.05);
  --shadow-2:0 16px 40px rgba(21,26,24,.08);
  --shadow-3:0 24px 60px rgba(15,107,91,.14);
  --container:1280px;
  --f-head:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--f-head);
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;line-height:1.24;font-weight:700;letter-spacing:-.01em}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit;color:inherit}
svg{display:block}
:focus-visible{outline:3px solid var(--lime);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 36px;
}

/* ============ 头部与卡片化导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  padding:14px 0 8px;
  background:linear-gradient(180deg,rgba(245,243,236,.96) 62%,rgba(245,243,236,0));
  transition:padding .2s ease;
}
.nav-card{
  display:flex;
  align-items:center;
  gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow-1);
  padding:10px 14px;
  transition:box-shadow .24s ease;
}
.site-header.is-scrolled .nav-card{box-shadow:var(--shadow-2)}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;min-width:0}
.brand-mark{
  width:42px;height:42px;flex:0 0 auto;border-radius:14px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:var(--lime);
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(15,107,91,.26);
}
.brand-text{display:block;min-width:0}
.brand-name{display:block;font-size:16px;font-weight:700;line-height:1.2;color:var(--ink);white-space:nowrap}
.brand-sub{display:block;font-size:11px;letter-spacing:.16em;color:var(--ink-2);line-height:1.5;white-space:nowrap}

.nav-links{
  display:flex;
  align-items:center;
  gap:5px;
  margin:0 auto;
  flex-wrap:nowrap;
}
.nav-item{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:4px;
  padding:8px 12px;
  border-radius:14px;
  font-size:13px;
  line-height:1.2;
  color:var(--ink-2);
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
  white-space:nowrap;
}
.nav-item svg{width:18px;height:18px;stroke-width:1.8}
.nav-item:hover{background:var(--mist);color:var(--primary-dark);border-color:var(--line)}
.nav-item.active{
  background:var(--mist);
  color:var(--primary-dark);
  border-color:rgba(15,107,91,.18);
  box-shadow:inset 0 -2px 0 var(--primary);
  font-weight:600;
}
.nav-cta{flex:0 0 auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:13px;
  border:1px solid var(--line);
  background:var(--mist);
  color:var(--primary-dark);
  align-items:center;
  justify-content:center;
  margin-left:auto;
  transition:background .2s ease,transform .2s ease;
}
.nav-toggle:hover{background:var(--primary-light)}
.nav-toggle svg{width:22px;height:22px}

.nav-drawer{
  position:fixed;
  left:16px;right:16px;top:82px;
  z-index:90;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:22px;
  box-shadow:var(--shadow-2);
  padding:18px;
  display:none;
}
.nav-drawer.is-open{display:block}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
.drawer-grid a{
  display:flex;align-items:center;gap:8px;
  padding:13px 14px;
  border:1px solid var(--line);
  border-radius:14px;
  font-size:14px;
  color:var(--ink);
  background:var(--bg);
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.drawer-grid a svg{width:17px;height:17px;color:var(--primary)}
.drawer-grid a:hover,.drawer-grid a.active{background:var(--mist);border-color:rgba(15,107,91,.24);color:var(--primary-dark)}
.drawer-note{font-size:13px;color:var(--ink-2);margin:12px 0 0;text-align:center}

/* ============ 按钮体系 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:13px 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn svg{width:17px;height:17px;transition:transform .2s ease}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(15,107,91,.24)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 16px 34px rgba(15,107,91,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(15,107,91,.24)}
.btn-secondary{background:var(--card);color:var(--ink);border-color:var(--line)}
.btn-secondary:hover{background:var(--mist);border-color:rgba(15,107,91,.35);transform:translateY(-2px)}
.btn-lime{background:var(--lime);color:#1C2418;box-shadow:0 10px 24px rgba(217,244,95,.24)}
.btn-lime:hover{background:#CBE94A;transform:translateY(-2px);box-shadow:0 16px 34px rgba(217,244,95,.3)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.72);transform:translateY(-2px)}
.btn-text{
  display:inline-flex;align-items:center;gap:7px;
  min-height:auto;padding:0;
  font-size:15px;font-weight:600;color:var(--primary-dark);
  border:0;background:none;
}
.btn-text svg{width:16px;height:16px;transition:transform .2s ease}
.btn-text:hover{color:var(--primary)}
.btn-text:hover svg{transform:translateX(3px)}
.btn-block{width:100%}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.55;pointer-events:none}

/* ============ 通用标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid var(--line);
  background:var(--card);
  color:var(--primary-dark);
}
.badge-lime{background:rgba(217,244,95,.16);border-color:rgba(217,244,95,.5);color:var(--lime)}
.badge-solid{background:var(--primary-light);border-color:rgba(15,107,91,.2);color:var(--primary-dark)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px}
.chip{
  padding:8px 16px;
  border-radius:999px;
  font-size:13.5px;
  color:var(--ink-2);
  background:var(--card);
  border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.chip:hover{color:var(--primary-dark);border-color:rgba(15,107,91,.32);background:var(--mist)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  font-size:12.5px;
  padding:5px 11px;
  border-radius:8px;
  background:var(--mist);
  color:var(--primary-dark);
  border:1px solid rgba(15,107,91,.14);
}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  margin-top:18px;
  padding:64px 0 72px;
  color:#fff;
  background:
    linear-gradient(112deg,rgba(10,40,35,.94) 0%,rgba(11,55,47,.9) 46%,rgba(15,107,91,.72) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 84% 18%,rgba(217,244,95,.16),transparent 42%),
    radial-gradient(circle at 12% 88%,rgba(217,244,95,.1),transparent 38%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.crumbs{
  display:flex;align-items:center;gap:9px;
  font-size:13.5px;color:rgba(232,242,236,.72);
  margin-bottom:26px;flex-wrap:wrap;
}
.crumbs a{color:rgba(232,242,236,.86);transition:color .2s ease}
.crumbs a:hover{color:var(--lime)}
.crumbs span.sep{color:rgba(232,242,236,.4)}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:52px;
  align-items:center;
}
.hero-copy h1{
  font-size:clamp(2.15rem,4.4vw,3.6rem);
  line-height:1.18;
  margin:20px 0 18px;
  letter-spacing:-.015em;
}
.hero-copy h1 b{
  color:var(--lime);
  font-weight:700;
  position:relative;
  white-space:nowrap;
}
.hero-sub{
  font-size:17.5px;
  line-height:1.85;
  color:rgba(235,243,239,.86);
  max-width:36em;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-metrics{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  max-width:600px;
}
.hero-metrics li{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(217,244,95,.26);
  border-radius:16px;
  padding:14px 16px;
  backdrop-filter:blur(2px);
}
.hero-metrics strong{
  display:block;
  font-size:22px;
  line-height:1.2;
  color:var(--lime);
  font-weight:700;
}
.hero-metrics span{display:block;font-size:12.5px;color:rgba(235,243,239,.76);margin-top:5px;line-height:1.5}
.hero-figure{
  position:relative;
  margin:0;
  border-radius:var(--r-xl);
  overflow:hidden;
  border:1px solid rgba(217,244,95,.28);
  box-shadow:0 30px 70px rgba(0,0,0,.32);
}
.hero-figure img{width:100%;aspect-ratio:4/3.2;object-fit:cover}
.hero-figure figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:16px 18px;
  font-size:13px;
  color:rgba(245,243,236,.92);
  background:linear-gradient(180deg,rgba(10,35,30,0),rgba(10,35,30,.86));
}
.hero-rings{
  position:absolute;
  right:-70px;top:-70px;
  width:280px;height:280px;
  border-radius:50%;
  border:1px solid rgba(217,244,95,.22);
  box-shadow:0 0 0 34px rgba(217,244,95,.05),0 0 0 70px rgba(217,244,95,.03);
  pointer-events:none;
}

/* ============ 板块基础 ============ */
.section{padding:88px 0}
.section-mist{background:var(--mist)}
.section-dark{
  background:linear-gradient(160deg,#111614,#152420 62%,#0F3A32);
  color:#EAF1ED;
}
.section-head{max-width:800px;margin-bottom:38px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;letter-spacing:.16em;
  color:var(--primary);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime);border-radius:2px}
.section-dark .eyebrow{color:var(--lime)}
.section-head h2{
  font-size:clamp(1.7rem,3.1vw,2.6rem);
  line-height:1.24;
  margin-bottom:14px;
}
.lead{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:44em;margin:0}
.section-dark .lead{color:rgba(226,237,231,.76)}

/* ============ Bento 指南主线 ============ */
.bento{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:22px;
}
.card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--shadow-1);
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  display:flex;
  flex-direction:column;
}
.card:hover{transform:translateY(-4px);border-color:rgba(15,107,91,.35);box-shadow:var(--shadow-3)}
.card-a{grid-column:span 7}
.card-b{grid-column:span 5}
.card-c{grid-column:span 5}
.card-d{grid-column:span 7}
.card-icon{
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;
  background:var(--primary-light);
  color:var(--primary-dark);
  margin-bottom:18px;
  border:1px solid rgba(15,107,91,.14);
}
.card-icon svg{width:22px;height:22px}
.card h3{font-size:clamp(1.2rem,1.8vw,1.5rem);margin-bottom:10px}
.card p{font-size:15.5px;line-height:1.85;color:var(--ink-2);margin-bottom:0}
.card-foot{margin-top:auto;padding-top:20px}
.card-media{
  border-radius:14px;
  overflow:hidden;
  margin-bottom:18px;
  border:1px solid var(--line);
}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-num{
  position:absolute;
  top:20px;right:24px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--ink-2);
  opacity:.7;
}

/* ============ 左右交替图文 ============ */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.split + .split{margin-top:72px}
.split-media{
  border-radius:var(--r-xl);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  position:relative;
}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(200deg,rgba(15,107,91,.16),rgba(10,79,68,0) 58%);
  pointer-events:none;
}
.split-copy h3{font-size:clamp(1.35rem,2.2vw,1.9rem);margin-bottom:14px}
.split-copy p{font-size:16.5px;line-height:1.85;color:var(--ink-2)}
.check-list{margin:18px 0 24px;display:grid;gap:11px}
.check-list li{
  display:flex;
  gap:11px;
  font-size:15.5px;
  color:var(--ink);
  line-height:1.7;
}
.check-list li::before{
  content:"";
  flex:0 0 auto;
  width:19px;height:19px;
  margin-top:5px;
  border-radius:50%;
  background:var(--primary-light);
  border:1px solid rgba(15,107,91,.3);
  box-shadow:inset 0 0 0 4px #fff;
}
.split-reverse .split-media{order:2}
.split-reverse .split-copy{order:1}

/* ============ 三步流程（深色面板） ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-top:40px;
}
.step{
  position:relative;
  background:rgba(255,255,255,.055);
  border:1px solid rgba(217,244,95,.2);
  border-radius:var(--r-lg);
  padding:28px 24px 26px;
  transition:background .24s ease,border-color .24s ease,transform .24s ease;
}
.step:hover{background:rgba(255,255,255,.09);border-color:rgba(217,244,95,.45);transform:translateY(-3px)}
.step-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  background:var(--lime);
  color:#1C2418;
  font-weight:700;
  font-size:16px;
  margin-bottom:16px;
}
.step h3{font-size:1.15rem;margin-bottom:9px;color:#fff}
.step p{font-size:14.8px;line-height:1.8;color:rgba(226,237,231,.74);margin:0}

/* ============ 数据面板 ============ */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:36px;
}
.stat{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px 22px;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.stat:hover{transform:translateY(-3px);border-color:rgba(15,107,91,.32);box-shadow:var(--shadow-2)}
.stat strong{
  display:flex;
  align-items:baseline;
  gap:5px;
  font-size:34px;
  line-height:1.1;
  font-weight:700;
  color:var(--primary-dark);
}
.stat strong em{font-style:normal;font-size:15px;color:var(--ink-2);font-weight:600}
.stat span{display:block;margin-top:9px;font-size:14px;color:var(--ink-2);line-height:1.7}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:22px;
  margin-top:34px;
}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
  height:fit-content;
}
.faq-item:hover{border-color:rgba(15,107,91,.3)}
.faq-item.is-open{border-color:rgba(15,107,91,.4);box-shadow:var(--shadow-2)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:20px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
}
.faq-q .pm{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:9px;
  border:1px solid var(--line);
  background:var(--mist);
  color:var(--primary-dark);
  display:grid;place-items:center;
  font-size:17px;
  font-weight:700;
  transition:background .2s ease,transform .2s ease;
}
.faq-item.is-open .faq-q .pm{background:var(--lime);border-color:rgba(15,107,91,.3);transform:rotate(180deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
  background:#FBFAF5;
}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{
  padding:0 22px 22px;
  margin:0;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
}

/* ============ CTA ============ */
.cta-band{padding:0 0 96px}
.cta-card{
  position:relative;
  background:linear-gradient(135deg,var(--primary-light) 0%,#EFF6F1 54%,#F3F7E6 100%);
  border:1px solid rgba(15,107,91,.18);
  border-radius:var(--r-xl);
  padding:52px 48px;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
  overflow:hidden;
  box-shadow:var(--shadow-2);
}
.cta-card::before{
  content:"";
  position:absolute;
  right:-90px;bottom:-110px;
  width:300px;height:300px;
  border-radius:50%;
  border:1px solid rgba(15,107,91,.16);
  box-shadow:0 0 0 40px rgba(15,107,91,.05),0 0 0 82px rgba(15,107,91,.03);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2}
.cta-copy h2{font-size:clamp(1.6rem,2.8vw,2.3rem);margin-bottom:14px}
.cta-copy p{font-size:16px;color:var(--ink-2);line-height:1.85;margin-bottom:24px;max-width:34em}
.cta-actions{display:flex;flex-wrap:wrap;gap:13px}
.cta-form{position:relative;z-index:2;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-1)}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;
  min-height:50px;
  padding:12px 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:88px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#9AA6A0}
.field input:hover,.field textarea:hover,.field select:hover{border-color:#C6D3CC}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(217,244,95,.6);
}
.form-msg{font-size:13.5px;line-height:1.7;margin:10px 0 0;min-height:1px}
.form-msg.success{color:var(--success)}
.form-msg.error{color:var(--error)}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:#DCE5E0;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.55fr 1fr 1.05fr 1.2fr;gap:42px}
.brand--footer .brand-name{color:#fff}
.brand--footer .brand-sub{color:rgba(220,229,224,.5)}
.footer-brand p{
  font-size:14.5px;
  line-height:1.85;
  color:rgba(220,229,224,.66);
  margin:18px 0 0;
  max-width:26em;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{
  font-size:12.5px;
  padding:5px 11px;
  border-radius:8px;
  border:1px solid rgba(217,244,95,.24);
  color:rgba(217,244,95,.86);
  background:rgba(217,244,95,.06);
}
.footer-col h4{
  font-size:14px;
  letter-spacing:.08em;
  color:#fff;
  margin:4px 0 18px;
  font-weight:600;
}
.footer-col ul{display:grid;gap:11px}
.footer-col a{
  font-size:14.5px;
  color:rgba(220,229,224,.72);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-col a:hover{color:var(--lime);padding-left:3px}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:rgba(220,229,224,.72);
  line-height:1.7;
}
.footer-contact .k{
  flex:0 0 auto;
  color:rgba(220,229,224,.45);
  min-width:60px;
}
.footer-sub{display:flex;gap:8px;margin-top:14px}
.footer-sub input{
  flex:1 1 auto;
  min-width:0;
  min-height:44px;
  padding:10px 13px;
  border-radius:11px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
  color:#fff;
  font-size:14px;
  transition:border-color .2s ease,background .2s ease;
}
.footer-sub input::placeholder{color:rgba(220,229,224,.42)}
.footer-sub input:focus{
  outline:none;
  border-color:rgba(217,244,95,.6);
  background:rgba(255,255,255,.1);
  box-shadow:0 0 0 3px rgba(217,244,95,.18);
}
.footer-sub button{
  flex:0 0 auto;
  min-height:44px;
  padding:10px 18px;
  border-radius:11px;
  background:var(--lime);
  color:#1C2418;
  font-size:14px;
  font-weight:600;
  transition:background .2s ease,transform .2s ease;
}
.footer-sub button:hover{background:#CBE94A;transform:translateY(-1px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  margin-top:52px;
  padding:22px 0 26px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(220,229,224,.5);
}
.footer-bottom p{margin:0}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{padding:0 28px}
  .nav-item{padding:8px 9px;font-size:12.5px}
  .nav-item svg{width:17px;height:17px}
  .brand-sub{display:none}
  .hero-grid{gap:40px}
  .card-a,.card-b,.card-c,.card-d{grid-column:span 6}
}
@media (max-width:992px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .page-hero{padding:48px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-figure{order:-1}
  .hero-figure img{aspect-ratio:16/10}
  .hero-metrics{max-width:100%}
  .split{grid-template-columns:1fr;gap:28px}
  .split-reverse .split-media,.split-reverse .split-copy{order:0}
  .split + .split{margin-top:56px}
  .steps{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr;padding:40px 30px;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .section{padding:64px 0}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .card-a,.card-b,.card-c,.card-d{grid-column:span 12}
  .hero-copy h1{font-size:clamp(1.85rem,7vw,2.4rem)}
  .hero-sub{font-size:16px}
  .hero-metrics{grid-template-columns:1fr;gap:10px}
  .hero-metrics li{display:flex;align-items:baseline;gap:10px;padding:12px 14px}
  .hero-metrics strong{font-size:19px}
  .hero-metrics span{margin-top:0;font-size:12.5px}
  .drawer-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .cta-card{padding:32px 22px}
  .stats{grid-template-columns:1fr}
  .section{padding:56px 0}
  .cta-band{padding:0 0 64px}
}
@media (max-width:576px){
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%}
  .card{padding:22px}
  .faq-q{padding:17px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .section-head h2{font-size:clamp(1.5rem,6vw,1.9rem)}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  .card:hover,.stat:hover,.step:hover,.btn:hover{transform:none}
}

/* roulang page: category4 */
:root{
  --ink:#151A18;
  --sub:#5F6B65;
  --bg:#F5F3EC;
  --card:#FFFFFF;
  --mist:#E8F2EC;
  --primary:#0F6B5B;
  --primary-dark:#0A4F44;
  --primary-light:#D9EEE7;
  --accent:#D9F45F;
  --line:#DDE5DF;
  --footer-bg:#141816;
  --ok:#1F7A5C;
  --err:#B42318;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-btn:12px;
  --shadow-sm:0 4px 12px rgba(21,26,24,.05);
  --shadow:0 16px 40px rgba(21,26,24,.08);
  --shadow-hover:0 24px 60px rgba(15,107,91,.14);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{line-height:1.24;font-weight:600;letter-spacing:.01em}
p{max-width:44em}
::selection{background:var(--accent);color:var(--ink)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--dark{background:var(--footer-bg);color:#E7EFEA}
.section--mist{background:var(--mist)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-light);
  padding:6px 14px;border-radius:999px;border:1px solid rgba(15,107,91,.16);
}
.eyebrow--light{background:rgba(217,244,95,.12);color:var(--accent);border-color:rgba(217,244,95,.28)}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head h2{font-size:clamp(1.75rem,3.2vw,2.75rem);margin:18px 0 14px}
.sec-head p{color:var(--sub);font-size:16.5px}
.section--dark .sec-head p{color:rgba(231,239,234,.68)}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:80;background:var(--bg);padding:14px 0 0}
.site-header .container{position:relative}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:10px 14px;box-shadow:var(--shadow-sm);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled .nav-card{box-shadow:var(--shadow)}
.brand{display:inline-flex;align-items:center;gap:11px;flex:none}
.brand-mark{
  width:40px;height:40px;border-radius:13px;flex:none;
  display:grid;place-items:center;
  background:var(--primary);color:#fff;
  box-shadow:0 6px 16px rgba(15,107,91,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:600;letter-spacing:.02em}
.brand-sub{font-size:11.5px;color:var(--sub);letter-spacing:.1em}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:nowrap}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 12px;border-radius:12px;
  font-size:14px;color:var(--sub);white-space:nowrap;
  transition:background .22s ease,color .22s ease,box-shadow .22s ease;
}
.nav-item svg{width:16px;height:16px;flex:none;opacity:.85}
.nav-item:hover{background:var(--mist);color:var(--ink)}
.nav-item.active{
  background:var(--mist);color:var(--primary);font-weight:600;
  box-shadow:inset 0 -2px 0 var(--primary);
}
.nav-cta{
  flex:none;display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#fff;
  padding:11px 18px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
  box-shadow:0 6px 16px rgba(15,107,91,.22);
}
.nav-cta:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(15,107,91,.3)}
.nav-cta:active{transform:translateY(0)}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--card);
  align-items:center;justify-content:center;flex:none;
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;transition:transform .25s ease,background .25s ease}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .2s ease}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}
.nav-burger.is-open span{background:transparent}
.nav-burger.is-open span::before{transform:translateY(6px) rotate(45deg)}
.nav-burger.is-open span::after{transform:translateY(-6px) rotate(-45deg)}

.nav-drawer{display:none}
.nav-drawer.is-open{display:block}
.drawer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:12px}
.drawer-link{
  display:flex;align-items:center;gap:10px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:13px 14px;font-size:14px;color:var(--ink);
}
.drawer-link svg{width:17px;height:17px;color:var(--primary);flex:none}
.drawer-link.active{background:var(--mist);border-color:var(--primary-light);color:var(--primary);font-weight:600}
.drawer-foot{margin-top:12px;display:flex;flex-direction:column;gap:10px}
.drawer-foot .btn{width:100%;justify-content:center}
.drawer-note{font-size:13px;color:var(--sub);text-align:center}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  min-height:48px;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 24px rgba(15,107,91,.2)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 16px 34px rgba(15,107,91,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(15,107,91,.24)}
.btn-ghost{background:var(--card);color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--mist);border-color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{
  padding:6px 0;color:var(--primary);font-weight:600;font-size:15px;
  display:inline-flex;align-items:center;gap:7px;min-height:auto;
}
.btn-text .arrow{transition:transform .22s ease}
.btn-text:hover .arrow{transform:translateX(3px)}
.btn:disabled{opacity:.55;pointer-events:none}
.btn.is-loading{position:relative;color:transparent}
.btn.is-loading::after{
  content:"";position:absolute;width:18px;height:18px;border-radius:50%;
  border:2px solid rgba(255,255,255,.4);border-top-color:#fff;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ 面包屑与 Hero ============ */
.crumbs{padding:22px 0 0;font-size:13px;color:var(--sub)}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:#B9C4BE}
.crumbs a:hover{color:var(--primary)}

.hero{padding:34px 0 0}
.hero-grid{
  display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;
}
.hero h1{
  font-size:clamp(2.25rem,4.4vw,3.55rem);
  margin:20px 0 18px;
  letter-spacing:-.01em;
}
.hero h1 .hl{
  position:relative;color:var(--primary);white-space:nowrap;
}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:.32em;
  background:var(--accent);opacity:.55;border-radius:4px;z-index:-1;
}
.hero-sub{font-size:17.5px;color:var(--sub);max-width:34em;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 0}
.hero-metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
  margin-top:38px;border-top:1px solid var(--line);padding-top:22px;
}
.metric{padding-right:16px}
.metric+.metric{padding-left:16px;border-left:1px solid var(--line)}
.metric b{display:block;font-size:22px;font-weight:600;letter-spacing:.01em;color:var(--primary)}
.metric span{display:block;font-size:12.8px;color:var(--sub);margin-top:4px;line-height:1.5}

.hero-visual{position:relative}
.hero-visual .frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  background:var(--primary-dark);
}
.hero-visual .frame img{width:100%;height:460px;object-fit:cover}
.hero-visual .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,79,68,.12) 0%,rgba(10,79,68,.62) 100%);
}
.hero-visual .dots{
  position:absolute;right:-14px;top:-14px;width:120px;height:120px;
  background-image:radial-gradient(var(--primary) 1.6px,transparent 1.6px);
  background-size:14px 14px;opacity:.22;border-radius:16px;pointer-events:none;
}
.hero-visual .float-card{
  position:absolute;left:20px;bottom:20px;right:20px;
  background:rgba(255,255,255,.96);border-radius:var(--r-sm);
  padding:16px 18px;border:1px solid rgba(221,229,223,.9);
  box-shadow:0 12px 30px rgba(10,79,68,.22);
  display:flex;align-items:center;gap:14px;
}
.float-card .fc-icon{
  width:42px;height:42px;border-radius:12px;flex:none;display:grid;place-items:center;
  background:var(--primary-light);color:var(--primary);
}
.float-card .fc-text b{display:block;font-size:14.5px;font-weight:600}
.float-card .fc-text span{display:block;font-size:12.8px;color:var(--sub);margin-top:2px}
.hero-visual .tag-top{
  position:absolute;top:18px;left:18px;
  background:var(--accent);color:#20301D;
  font-size:12.5px;font-weight:600;letter-spacing:.05em;
  padding:7px 13px;border-radius:999px;
}

/* ============ 支持范围卡 ============ */
.scope-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.scope-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 22px;box-shadow:var(--shadow-sm);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.scope-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-hover)}
.scope-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:var(--mist);color:var(--primary);margin-bottom:16px;
}
.scope-card h3{font-size:17px;margin-bottom:9px}
.scope-card p{font-size:14.5px;color:var(--sub);line-height:1.78;max-width:none}

/* ============ FAQ + 联系栏 ============ */
.support-grid{display:grid;grid-template-columns:1.32fr .78fr;gap:40px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(15,107,91,.36)}
.faq-item.is-open{border-color:var(--primary);box-shadow:var(--shadow-sm)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:19px 22px;text-align:left;font-size:16px;font-weight:600;line-height:1.6;
  transition:background .22s ease;
}
.faq-q:hover{background:#FBFCFA}
.faq-icon{
  position:relative;width:24px;height:24px;border-radius:50%;
  background:var(--mist);flex:none;
}
.faq-icon::before{content:"";position:absolute;left:6px;right:6px;top:50%;height:2px;margin-top:-1px;background:var(--primary);border-radius:2px}
.faq-icon::after{content:"";position:absolute;top:6px;bottom:6px;left:50%;width:2px;margin-left:-1px;background:var(--primary);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.faq-item.is-open .faq-icon{background:var(--primary)}
.faq-item.is-open .faq-icon::before{background:#fff}
.faq-item.is-open .faq-icon::after{background:#fff;transform:scaleY(0);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a>div{overflow:hidden}
.faq-a p{
  padding:0 22px 20px;font-size:15px;color:var(--sub);line-height:1.9;
  background:linear-gradient(180deg,rgba(232,242,236,0) 0%,rgba(232,242,236,.55) 100%);
  max-width:none;
}
.faq-a p{padding-top:2px}

.contact-card{
  position:sticky;top:104px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);overflow:hidden;
}
.contact-card .cc-head{
  background:var(--footer-bg);color:#E7EFEA;padding:24px 26px;
}
.contact-card .cc-head h3{font-size:19px;margin-bottom:7px}
.contact-card .cc-head p{font-size:13.6px;color:rgba(231,239,234,.7);line-height:1.75;max-width:none}
.contact-card .cc-body{padding:22px 26px 26px}
.field{margin-bottom:15px}
.field label{display:block;font-size:13.4px;font-weight:600;margin-bottom:7px;color:var(--ink)}
.field label .req{color:var(--err);margin-left:3px}
.field input,.field textarea,.field select{
  width:100%;min-height:48px;padding:12px 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--card);color:var(--ink);font-size:14.5px;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:#9AA8A1}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(217,244,95,.55);
}
.field.has-error input,.field.has-error textarea{border-color:var(--err);background:#FDF6F5}
.err-msg{display:none;font-size:12.8px;color:var(--err);margin-top:6px}
.field.has-error .err-msg{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--sub);line-height:1.7;margin:4px 0 18px}
.check-row input{width:17px;height:17px;min-height:auto;margin-top:3px;flex:none;accent-color:var(--primary)}
.contact-card .btn{width:100%}
.form-note{
  display:none;margin-top:14px;padding:12px 14px;border-radius:12px;
  font-size:13.4px;line-height:1.7;
}
.form-note.is-ok{display:block;background:rgba(31,122,92,.1);color:var(--ok);border:1px solid rgba(31,122,92,.24)}
.form-note.is-err{display:block;background:rgba(180,35,24,.08);color:var(--err);border:1px solid rgba(180,35,24,.22)}
.cc-direct{margin-top:20px;padding-top:18px;border-top:1px dashed var(--line);font-size:13.4px;color:var(--sub);line-height:1.9}
.cc-direct b{color:var(--ink);font-weight:600}

/* ============ 流程条 ============ */
.flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;counter-reset:flow}
.flow-step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);padding:28px 24px 26px;box-shadow:var(--shadow-sm);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.flow-step:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--shadow-hover)}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;margin-bottom:16px;
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
}
.flow-step:nth-child(2) .flow-num{background:var(--primary-dark)}
.flow-step:nth-child(3) .flow-num{background:#20301D;color:var(--accent)}
.flow-step h3{font-size:17.5px;margin-bottom:9px}
.flow-step p{font-size:14.6px;color:var(--sub);line-height:1.82;max-width:none}
.flow-step::after{
  content:"";position:absolute;right:-13px;top:46px;width:6px;height:6px;
  border-right:2px solid #C6D2CB;border-top:2px solid #C6D2CB;transform:rotate(45deg);
}
.flow-step:last-child::after{display:none}

/* ============ 深色时效区 ============ */
.dark-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.stat-card{
  background:rgba(255,255,255,.045);
  border:1px solid rgba(231,239,234,.14);
  border-radius:var(--r-md);padding:24px;
  transition:background .25s ease,border-color .25s ease,transform .25s ease;
}
.stat-card:hover{background:rgba(217,244,95,.08);border-color:rgba(217,244,95,.35);transform:translateY(-3px)}
.stat-card b{display:block;font-size:34px;font-weight:600;color:var(--accent);line-height:1.1;letter-spacing:-.01em}
.stat-card b i{font-size:15px;font-style:normal;color:rgba(231,239,234,.7);margin-left:5px;letter-spacing:.02em}
.stat-card span{display:block;font-size:13.6px;color:rgba(231,239,234,.72);margin-top:8px;line-height:1.6}
.note-list{display:flex;flex-direction:column;gap:0}
.note-item{
  display:flex;gap:16px;padding:20px 0;
  border-bottom:1px solid rgba(231,239,234,.12);
}
.note-item:first-child{padding-top:0}
.note-item:last-child{border-bottom:0;padding-bottom:0}
.note-item .ni-idx{
  flex:none;width:26px;font-size:13px;font-weight:600;color:var(--accent);
  letter-spacing:.06em;padding-top:3px;
}
.note-item h4{font-size:15.5px;margin-bottom:6px;color:#F2F7F4}
.note-item p{font-size:14px;color:rgba(231,239,234,.66);line-height:1.82;max-width:none}

/* ============ CTA ============ */
.cta-card{
  background:var(--mist);border:1px solid rgba(15,107,91,.16);
  border-radius:var(--r-lg);padding:52px 56px;
  display:grid;grid-template-columns:1.35fr .65fr;gap:40px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-card::before{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border-radius:50%;background:radial-gradient(circle,rgba(217,244,95,.55),rgba(217,244,95,0) 68%);
}
.cta-card h2{font-size:clamp(1.6rem,2.6vw,2.3rem);margin-bottom:14px;position:relative}
.cta-card p{font-size:16px;color:var(--sub);max-width:34em;position:relative}
.cta-actions{display:flex;flex-direction:column;gap:12px;position:relative}
.cta-actions .btn{width:100%}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer-bg);color:#DCE5E0;padding:76px 0 30px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr .85fr 1fr 1fr;gap:44px}
.brand--footer .brand-mark{background:rgba(217,244,95,.14);color:var(--accent);box-shadow:none}
.brand--footer .brand-name{color:#F2F7F4}
.brand--footer .brand-sub{color:rgba(220,229,224,.5)}
.footer-brand p{font-size:14.2px;color:rgba(220,229,224,.62);line-height:1.85;margin-top:18px;max-width:26em}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.footer-tags span{
  font-size:12.5px;color:rgba(220,229,224,.72);
  border:1px solid rgba(220,229,224,.18);border-radius:999px;padding:5px 12px;
}
.footer-col h4{font-size:14px;color:#F2F7F4;letter-spacing:.06em;margin-bottom:18px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col li{font-size:14px;color:rgba(220,229,224,.66)}
.footer-col a{color:rgba(220,229,224,.66);transition:color .2s ease,padding-left .2s ease}
.footer-col a:hover{color:var(--accent);padding-left:3px}
.footer-contact .k{display:block;font-size:12px;color:rgba(220,229,224,.4);letter-spacing:.06em;margin-bottom:2px}
.footer-sub{display:flex;gap:8px;margin-top:16px}
.footer-sub input{
  flex:1;min-width:0;min-height:44px;padding:10px 13px;border-radius:var(--r-btn);
  border:1px solid rgba(220,229,224,.2);background:rgba(255,255,255,.05);color:#F2F7F4;font-size:14px;
}
.footer-sub input::placeholder{color:rgba(220,229,224,.38)}
.footer-sub input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(217,244,95,.2)}
.footer-sub button{
  flex:none;padding:0 20px;min-height:44px;border-radius:var(--r-btn);
  background:var(--accent);color:#20301D;font-size:14px;font-weight:600;
  transition:background .2s ease,transform .2s ease;
}
.footer-sub button:hover{background:#E6FA7C;transform:translateY(-1px)}
.form-msg{font-size:13px;margin-top:10px;line-height:1.6}
.form-msg.is-ok{color:var(--accent)}
.form-msg.is-err{color:#F09A93}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(220,229,224,.14);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:13px;color:rgba(220,229,224,.45);
}
.footer-bottom a{color:rgba(220,229,224,.6)}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .container{padding:0 32px}
  .nav-item{padding:9px 10px;font-size:13.4px;gap:6px}
  .nav-links{gap:0}
  .brand-sub{display:none}
  .hero-grid{gap:40px}
  .hero-visual .frame img{height:420px}
}
@media (max-width:992px){
  .section{padding:72px 0}
  .section--tight{padding:58px 0}
  .nav-links,.nav-cta{display:none}
  .nav-burger{display:inline-flex;margin-left:auto}
  .nav-card{padding:9px 12px;gap:12px}
  .nav-drawer{
    position:absolute;left:32px;right:32px;top:calc(100% + 10px);
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
    padding:14px;box-shadow:var(--shadow);z-index:90;
  }
  .hero{padding-top:24px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-visual .frame img{height:340px}
  .hero h1 .hl{white-space:normal}
  .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 0}
  .metric:nth-child(3){padding-left:0;border-left:0}
  .metric:nth-child(3),.metric:nth-child(4){border-top:1px solid var(--line);padding-top:16px}
  .metric:nth-child(2),.metric:nth-child(4){border-left:1px solid var(--line)}
  .scope-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .support-grid{grid-template-columns:1fr;gap:32px}
  .contact-card{position:static}
  .flow{grid-template-columns:1fr}
  .flow-step::after{display:none}
  .dark-grid{grid-template-columns:1fr;gap:34px}
  .cta-card{grid-template-columns:1fr;padding:40px 34px;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .nav-drawer{left:20px;right:20px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .sec-head{margin-bottom:32px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-visual .frame img{height:280px}
  .hero-visual .float-card{left:14px;right:14px;bottom:14px;padding:13px 14px;gap:11px}
  .float-card .fc-text b{font-size:13.6px}
  .faq-q{padding:16px 16px;font-size:15px;gap:12px}
  .faq-a p{padding:0 16px 16px;font-size:14.4px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:56px 0 26px}
  .footer-bottom{margin-top:36px;flex-direction:column;gap:8px}
}
@media (max-width:576px){
  .brand-name{font-size:15.6px}
  .brand-mark{width:36px;height:36px;border-radius:11px}
  .hero-metrics{grid-template-columns:1fr;gap:0}
  .metric{padding:14px 0;border-left:0 !important;padding-left:0 !important;border-top:1px solid var(--line)}
  .metric:first-child{border-top:0;padding-top:0}
  .scope-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .hero-actions{flex-direction:column}
  .cta-card{padding:32px 22px}
  .drawer-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .scope-card:hover,.flow-step:hover,.stat-card:hover,.btn:hover{transform:none}
}

/* roulang page: category5 */
:root{
  --ink:#151A18;
  --ink-2:#5F6B65;
  --ink-3:#8A948E;
  --bg:#F5F3EC;
  --card:#FFFFFF;
  --mist:#E8F2EC;
  --primary:#0F6B5B;
  --primary-dark:#0A4F44;
  --primary-soft:#D9EEE7;
  --lime:#D9F45F;
  --line:#DDE5DF;
  --graphite:#141816;
  --ok:#1F7A5C;
  --err:#B42318;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-btn:14px;
  --sh-1:0 4px 12px rgba(21,26,24,.05);
  --sh-2:0 16px 40px rgba(21,26,24,.08);
  --sh-3:0 24px 60px rgba(15,107,91,.14);
  --container:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
input,textarea,select{font:inherit;color:inherit}
svg{display:block}
::selection{background:var(--lime);color:var(--ink)}

:focus-visible{
  outline:3px solid var(--lime);
  outline-offset:2px;
  border-radius:6px;
}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 36px;
}

/* ============ 品牌字标 ============ */
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:var(--primary);
  color:#fff;
  box-shadow:0 6px 16px rgba(15,107,91,.28);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.brand:hover .brand-mark{transform:translateY(-2px);box-shadow:0 10px 22px rgba(15,107,91,.32)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{
  font-size:17px;
  font-weight:700;
  letter-spacing:.2px;
  color:var(--ink);
}
.brand-sub{font-size:11px;color:var(--ink-3);letter-spacing:.6px;margin-top:3px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:16px 0;
  transition:padding .28s var(--ease);
}
.site-header.is-scrolled{padding:10px 0}
.nav-card{
  display:flex;
  align-items:center;
  gap:16px;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:11px 14px;
  box-shadow:var(--sh-1);
  transition:box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-scrolled .nav-card{box-shadow:var(--sh-2)}

.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:nowrap;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-links::-webkit-scrollbar{display:none}
.nav-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:9px 13px;
  border-radius:12px;
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-2);
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-item svg{width:17px;height:17px;opacity:.72;transition:opacity .2s var(--ease)}
.nav-item:hover{background:var(--mist);color:var(--primary)}
.nav-item:hover svg{opacity:1}
.nav-item.active{
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-weight:600;
  box-shadow:inset 0 -2px 0 var(--primary);
}
.nav-item.active svg{opacity:1}

.nav-cta{
  margin-left:6px;
  flex:0 0 auto;
}

.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--card);
  place-items:center;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:var(--mist);border-color:var(--primary)}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--ink);
  border-radius:2px;
  position:relative;
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .25s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15.5px;
  font-weight:600;
  letter-spacing:.2px;
  border:1px solid transparent;
  transition:transform .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  will-change:transform;
}
.btn svg{width:17px;height:17px}
.btn--primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 8px 20px rgba(15,107,91,.22);
}
.btn--ghost{
  background:var(--card);
  color:var(--ink);
  border-color:var(--line);
}
.btn--lime{
  background:var(--lime);
  color:var(--ink);
  box-shadow:0 8px 22px rgba(217,244,95,.28);
}
.btn--sm{height:42px;padding:0 18px;font-size:14.5px;border-radius:12px}
.btn--block{width:100%}
.btn--link{
  height:auto;
  padding:0;
  background:none;
  border:0;
  color:var(--primary);
  font-weight:600;
  box-shadow:none;
  gap:6px;
}
.btn--link svg{transition:transform .22s var(--ease)}
.btn--link:hover svg{transform:translateX(3px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;pointer-events:none}

@media (hover:hover){
  .btn--primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 14px 30px rgba(10,79,68,.28)}
  .btn--ghost:hover{background:var(--mist);border-color:var(--primary);transform:translateY(-2px)}
  .btn--lime:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(217,244,95,.36)}
}
.btn:active{transform:translateY(0) scale(.99)}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.4px;
  border:1px solid var(--line);
  background:var(--card);
  color:var(--ink-2);
}
.badge--primary{background:var(--primary-soft);color:var(--primary-dark);border-color:transparent}
.badge--lime{background:var(--lime);color:var(--ink);border-color:transparent}
.badge--outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.badge--dark{background:rgba(255,255,255,.1);color:#E9F1EC;border-color:rgba(255,255,255,.18)}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--graphite);
  color:#EDF3EF;
  border-radius:0 0 36px 36px;
  margin-top:-6px;
}
.page-hero__media{
  position:absolute;
  inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
  opacity:.4;
  transform:scale(1.03);
}
.page-hero__overlay{
  position:absolute;inset:0;
  background:
    radial-gradient(900px 420px at 82% 8%,rgba(15,107,91,.55),transparent 68%),
    linear-gradient(112deg,rgba(20,24,22,.96) 0%,rgba(20,24,22,.86) 46%,rgba(10,79,68,.72) 100%);
}
.page-hero__dots{
  position:absolute;
  right:6%;top:18%;
  width:220px;height:220px;
  background-image:radial-gradient(rgba(217,244,95,.55) 1.6px,transparent 1.6px);
  background-size:18px 18px;
  opacity:.55;
  pointer-events:none;
  mask-image:radial-gradient(circle at 60% 40%,#000 20%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 60% 40%,#000 20%,transparent 72%);
}
.page-hero__inner{
  position:relative;
  padding:64px 36px 76px;
  max-width:920px;
}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:rgba(233,241,236,.62);
  margin-bottom:20px;
}
.crumbs a{transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--lime)}
.crumbs span[aria-current]{color:rgba(233,241,236,.92)}

.page-hero h1{
  font-size:clamp(2.1rem,4.4vw,3.5rem);
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.4px;
  margin:18px 0 18px;
  max-width:18em;
}
.hl{
  color:var(--lime);
  box-shadow:inset 0 -.34em 0 rgba(217,244,95,.16);
}
.page-hero__sub{
  font-size:17.5px;
  line-height:1.85;
  color:rgba(233,241,236,.82);
  max-width:34em;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.page-hero .btn--ghost{
  background:rgba(255,255,255,.08);
  color:#EDF3EF;
  border-color:rgba(255,255,255,.24);
}
@media (hover:hover){
  .page-hero .btn--ghost:hover{background:rgba(255,255,255,.16);border-color:var(--lime)}
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:34px;
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.14);
}
.hero-stats li{min-width:112px}
.hero-stats .num{
  display:block;
  font-size:26px;
  font-weight:700;
  color:#fff;
  line-height:1.1;
  letter-spacing:-.5px;
}
.hero-stats .num em{font-style:normal;font-size:14px;font-weight:600;margin-left:3px;color:var(--lime)}
.hero-stats .lab{font-size:13.5px;color:rgba(233,241,236,.6);margin-top:6px;display:block}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--mist{background:var(--mist)}
.section--dark{background:var(--graphite);color:#EDF3EF}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{
  font-size:clamp(1.7rem,3vw,2.5rem);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.3px;
  margin:14px 0 14px;
}
.section-head p{color:var(--ink-2);font-size:16.5px}
.section--dark .section-head p{color:rgba(233,241,236,.72)}
.section--dark .badge{background:rgba(255,255,255,.1);color:#DCE5E0;border-color:rgba(255,255,255,.18)}

/* ============ 品牌故事双栏 ============ */
.story-grid{
  display:grid;
  grid-template-columns:1.02fr 1fr;
  gap:56px;
  align-items:center;
}
.story-figure{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-2);
  background:var(--card);
}
.story-figure img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  transition:transform .6s var(--ease);
}
@media (hover:hover){
  .story-figure:hover img{transform:scale(1.03)}
}
.story-figure__tag{
  position:absolute;
  left:18px;bottom:18px;
  background:rgba(20,24,22,.82);
  color:#EDF3EF;
  font-size:13px;
  padding:7px 14px;
  border-radius:999px;
  backdrop-filter:blur(6px);
  letter-spacing:.3px;
}
.story-body h2{
  font-size:clamp(1.7rem,2.9vw,2.35rem);
  line-height:1.26;
  margin:14px 0 20px;
  letter-spacing:-.3px;
}
.story-body p{
  max-width:40em;
  color:var(--ink-2);
  font-size:16.5px;
  line-height:1.92;
  margin-bottom:18px;
}
.story-body p strong{color:var(--ink);font-weight:600}
.story-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.story-points span{
  font-size:13.5px;
  padding:7px 14px;
  border-radius:999px;
  background:var(--card);
  border:1px solid var(--line);
  color:var(--ink-2);
}

/* ============ 时间线 ============ */
.timeline{
  position:relative;
  margin-top:8px;
  padding-left:34px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;
  top:8px;
  bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--primary) 0%,rgba(15,107,91,.14) 100%);
  border-radius:2px;
}
.tl-item{
  position:relative;
  padding:0 0 34px 0;
}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;
  left:-34px;
  top:7px;
  width:20px;height:20px;
  border-radius:50%;
  background:var(--card);
  border:2px solid var(--primary);
  box-shadow:0 0 0 5px rgba(15,107,91,.09);
}
.tl-item.is-now::before{background:var(--lime);border-color:var(--primary-dark);box-shadow:0 0 0 6px rgba(217,244,95,.25)}
.tl-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px 26px;
  box-shadow:var(--sh-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
@media (hover:hover){
  .tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--primary)}
}
.tl-stage{
  font-size:12.5px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--primary);
  text-transform:none;
}
.tl-card h3{
  font-size:clamp(1.15rem,1.8vw,1.4rem);
  margin:8px 0 10px;
  line-height:1.4;
  font-weight:700;
}
.tl-card p{color:var(--ink-2);font-size:15.5px;line-height:1.85}

/* ============ 价值观双列 ============ */
.values-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.value-item{
  display:flex;
  gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px 26px;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
@media (hover:hover){
  .value-item:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:var(--primary)}
}
.value-idx{
  flex:0 0 auto;
  width:38px;height:38px;
  border-radius:12px;
  display:grid;place-items:center;
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-weight:700;
  font-size:14px;
}
.value-item h3{font-size:16.5px;font-weight:700;margin-bottom:7px;line-height:1.5}
.value-item p{font-size:15px;color:var(--ink-2);line-height:1.82}

/* ============ 数据卡 + 徽章 ============ */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  margin-bottom:44px;
}
.stat-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.13);
  border-radius:var(--r-md);
  padding:24px 22px;
  transition:background .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
@media (hover:hover){
  .stat-card:hover{background:rgba(15,107,91,.28);border-color:rgba(217,244,95,.4);transform:translateY(-3px)}
}
.stat-card .num{
  font-size:clamp(1.8rem,3vw,2.4rem);
  font-weight:700;
  line-height:1.1;
  color:#fff;
  letter-spacing:-1px;
}
.stat-card .num em{font-style:normal;font-size:15px;font-weight:600;margin-left:4px;color:var(--lime)}
.stat-card .lab{font-size:14px;color:rgba(233,241,236,.66);margin-top:10px;line-height:1.7}

.badge-wall{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.badge-wall .badge{
  background:rgba(255,255,255,.07);
  border-color:rgba(255,255,255,.18);
  color:#DCE5E0;
  padding:10px 18px;
  font-size:13.5px;
  font-weight:500;
}
.badge-wall .badge svg{width:15px;height:15px;color:var(--lime)}

/* ============ 引述卡 ============ */
.quote-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:52px 56px;
  box-shadow:var(--sh-2);
  position:relative;
  overflow:hidden;
}
.quote-card::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:5px;
  background:linear-gradient(180deg,var(--primary),var(--lime));
}
.quote-card blockquote{
  margin:0;
  font-size:clamp(1.25rem,2.3vw,1.75rem);
  line-height:1.62;
  font-weight:600;
  color:var(--ink);
  letter-spacing:-.2px;
}
.quote-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-top:26px;
  font-size:14px;
  color:var(--ink-2);
}
.quote-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--primary)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item.is-open{border-color:var(--primary);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 24px;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
  transition:color .2s var(--ease),background .2s var(--ease);
}
@media (hover:hover){
  .faq-q:hover{color:var(--primary);background:var(--mist)}
}
.faq-icon{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:50%;
  display:grid;place-items:center;
  background:var(--primary-soft);
  color:var(--primary-dark);
  font-size:18px;
  line-height:1;
  font-weight:600;
  transition:transform .26s var(--ease),background .26s var(--ease);
}
.faq-item.is-open .faq-icon{background:var(--lime);transform:rotate(180deg)}
.faq-a{
  display:none;
  padding:0 24px 24px;
  color:var(--ink-2);
  font-size:15.5px;
  line-height:1.9;
  background:#FBFAF6;
  border-top:1px solid var(--line);
  padding-top:18px;
}
.faq-item.is-open .faq-a{display:block}

/* ============ CTA ============ */
.cta-wrap{padding:0 0 96px}
.cta-card{
  position:relative;
  overflow:hidden;
  background:linear-gradient(120deg,#0F6B5B 0%,#0A4F44 62%,#123F37 100%);
  border-radius:32px;
  padding:64px 60px;
  color:#EDF3EF;
  box-shadow:var(--sh-2);
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-60px;top:-70px;
  width:300px;height:300px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(217,244,95,.32),transparent 68%);
  pointer-events:none;
}
.cta-card h2{
  font-size:clamp(1.7rem,3.1vw,2.5rem);
  line-height:1.26;
  letter-spacing:-.3px;
  max-width:16em;
  margin-bottom:16px;
}
.cta-card p{
  color:rgba(233,241,236,.8);
  max-width:38em;
  font-size:16.5px;
  line-height:1.9;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.cta-card .btn--ghost{background:rgba(255,255,255,.1);color:#EDF3EF;border-color:rgba(255,255,255,.26)}
@media (hover:hover){
  .cta-card .btn--ghost:hover{background:rgba(255,255,255,.18);border-color:var(--lime)}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--graphite);
  color:#DCE5E0;
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr .9fr 1.1fr 1.2fr;
  gap:48px;
  padding-bottom:52px;
}
.brand--footer .brand-name{color:#F2F7F4}
.brand--footer .brand-sub{color:rgba(220,229,224,.5)}
.brand--footer .brand-mark{background:var(--primary);box-shadow:none}
.footer-brand p{
  margin-top:20px;
  font-size:14.5px;
  line-height:1.9;
  color:rgba(220,229,224,.64);
  max-width:30em;
}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.footer-tags span{
  font-size:12.5px;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  color:rgba(220,229,224,.72);
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  letter-spacing:.6px;
  color:#F2F7F4;
  margin-bottom:18px;
}
.footer-col ul{display:grid;gap:11px}
.footer-col li{font-size:14.5px;color:rgba(220,229,224,.66)}
.footer-col a{transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-contact .k{
  display:inline-block;
  min-width:70px;
  color:rgba(220,229,224,.42);
  font-size:13.5px;
}
.footer-sub{
  display:flex;
  gap:8px;
  margin-top:16px;
}
.footer-sub input{
  flex:1 1 auto;
  min-width:0;
  height:44px;
  padding:0 14px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
  color:#EDF3EF;
  font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.footer-sub input::placeholder{color:rgba(220,229,224,.38)}
.footer-sub input:focus{
  outline:none;
  border-color:var(--primary);
  background:rgba(255,255,255,.1);
  box-shadow:0 0 0 3px rgba(217,244,95,.35);
}
.footer-sub button{
  flex:0 0 auto;
  height:44px;
  padding:0 18px;
  border-radius:12px;
  background:var(--lime);
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.footer-sub button:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(217,244,95,.26)}
.form-msg{margin-top:10px;font-size:13px;min-height:18px}
.form-msg.is-ok{color:#7FE0B4}
.form-msg.is-err{color:#FF9C90}

.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:24px 0 30px;
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  justify-content:space-between;
  font-size:13.5px;
  color:rgba(220,229,224,.46);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .container{padding:0 28px}
  .page-hero__inner{padding:56px 28px 64px}
  .story-grid{gap:40px}
  .nav-item{padding:9px 10px;font-size:14px}
  .footer-grid{gap:36px}
}

@media (max-width:992px){
  .nav-toggle{display:grid}
  .nav-cta{display:none}
  .nav-links{
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:14px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-md);
    box-shadow:var(--sh-2);
    max-height:70vh;
    overflow-y:auto;
  }
  .nav-links.is-open{display:flex}
  .nav-item{padding:12px 14px;font-size:15px;justify-content:flex-start}
  .nav-card{position:relative;flex-wrap:wrap}

  .story-grid{grid-template-columns:1fr;gap:32px}
  .story-figure{order:-1}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .values-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .section{padding:72px 0}
  .cta-card{padding:48px 36px;border-radius:26px}
  .quote-card{padding:40px 32px}
}

@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .page-hero__inner{padding:44px 20px 52px;max-width:100%}
  .page-hero{border-radius:0 0 26px 26px}
  .page-hero h1{font-size:clamp(1.9rem,7vw,2.5rem)}
  .hero-stats{gap:22px;margin-top:32px}
  .hero-stats li{min-width:calc(50% - 12px)}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 100%}
  .page-hero__dots{display:none}
  .section{padding:56px 0}
  .section-head{margin-bottom:30px}
  .stat-grid{grid-template-columns:1fr;gap:14px}
  .footer-grid{grid-template-columns:1fr;gap:34px;padding-bottom:40px}
  .cta-wrap{padding-bottom:64px}
  .cta-card{padding:38px 24px;border-radius:22px}
  .cta-actions .btn{flex:1 1 100%}
  .quote-card{padding:32px 24px}
  .tl-card{padding:20px 20px}
  .timeline{padding-left:28px}
  .tl-item::before{left:-28px;width:16px;height:16px}
  .timeline::before{left:7px}
  .value-item{padding:20px}
  .faq-q{padding:18px 18px;font-size:15.5px}
  .faq-a{padding:16px 18px 20px}
  .footer-bottom{flex-direction:column;gap:8px}
}

@media (max-width:520px){
  .container{padding:0 18px}
  .page-hero h1{font-size:34px;line-height:1.24}
  .hero-stats li{min-width:100%}
  .brand-sub{display:none}
  .btn{height:46px;font-size:15px}
  .btn--block-sm{width:100%}
  .footer-sub{flex-direction:column}
  .footer-sub button{width:100%}
  .badge-wall .badge{width:100%;justify-content:center}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .btn:hover,.tl-card:hover,.value-item:hover,.stat-card:hover{transform:none !important}
}