/* roulang page: index */
:root{
  --brand:#0F6B57;
  --brand-light:#2FA37F;
  --brand-grad:linear-gradient(135deg,#0F6B57 0%,#2FA37F 60%,#7BD6A8 100%);
  --lemon:#D8F35B;
  --coral:#FF6A45;
  --bg:#F6F7F2;
  --card:#FFFFFF;
  --sub:#EDF2EC;
  --dark:#0B3A2E;
  --text:#16211C;
  --text-2:#4A5A52;
  --text-3:#7C8B84;
  --line:rgba(22,33,28,.08);
  --r-lg:24px;
  --r:16px;
  --r-sm:12px;
  --sh:0 2px 8px rgba(15,107,87,.06);
  --sh-hover:0 14px 34px rgba(15,107,87,.14);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.8;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 18px}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:.5px}
h1{font-size:44px;line-height:1.25}
h2{font-size:32px;line-height:1.3}
h3{font-size:22px;line-height:1.45;font-weight:600}
h4{font-size:17px;font-weight:600;letter-spacing:.3px}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(47,163,127,.35);outline-offset:2px;border-radius:6px}

/* ---------- 容器与板块 ---------- */
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:1.5px;color:var(--brand-light);margin-bottom:10px}
.section-head h2{max-width:640px}
.section-head p{color:var(--text-2);margin:10px 0 0;font-size:16px;max-width:640px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);white-space:nowrap;border-bottom:1px dashed rgba(15,107,87,.35);padding-bottom:2px}
.text-link .arw{transition:transform .22s ease}
.text-link:hover{color:var(--coral);border-bottom-color:rgba(255,106,69,.45)}
.text-link:hover .arw{transform:translateX(4px)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-size:16px;font-weight:600;line-height:1;padding:14px 30px;min-height:44px;cursor:pointer;border:0;transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease;text-align:center}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 6px 18px rgba(15,107,87,.22)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,107,87,.3);color:#fff}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94)}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}
.btn-ghost:hover{background:rgba(15,107,87,.08);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 20px;font-size:14px;min-height:38px}
.btn-lg{padding:16px 36px;font-size:17px}
.btn-block{width:100%}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;font-size:13px;font-weight:600;line-height:1.5}
.badge-soft{background:var(--sub);color:var(--brand)}
.badge-soft .dot{width:7px;height:7px;border-radius:50%;background:var(--lemon);box-shadow:0 0 0 3px rgba(216,243,91,.28)}
.badge-float{background:rgba(255,255,255,.94);color:var(--text);box-shadow:0 10px 24px rgba(15,107,87,.16);backdrop-filter:blur(4px)}
.badge-cat{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.95);color:var(--brand);font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;letter-spacing:.3px;box-shadow:0 4px 12px rgba(15,107,87,.14)}
.badge-num{font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(15,107,87,.1)}
.brand-row{border-bottom:1px solid var(--line)}
.brand-row-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.logo{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:12px;background:var(--brand-grad);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;letter-spacing:.5px;box-shadow:0 4px 12px rgba(15,107,87,.25)}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.5px;color:var(--text);white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:14px}
.head-link{font-size:14px;color:var(--text-2);font-weight:500}
.head-link:hover{color:var(--brand)}
.icon-btn{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease}
.icon-btn:hover{color:var(--brand);border-color:rgba(15,107,87,.3);background:rgba(15,107,87,.05)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;align-items:center;justify-content:center;color:var(--text)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.channel-row{background:#FBFCF8;border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;height:52px}
.channel-nav{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;white-space:nowrap}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{display:inline-flex;align-items:center;padding:8px 18px;border-radius:999px;font-size:15px;font-weight:500;color:var(--text-2);white-space:nowrap;transition:all .2s ease}
.channel-link:hover{background:rgba(15,107,87,.07);color:var(--brand)}
.channel-link.active{background:var(--brand-grad);color:#fff;font-weight:600;box-shadow:0 4px 12px rgba(15,107,87,.22)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:72px 0 88px;background:linear-gradient(180deg,#F1F6F0 0%,var(--bg) 100%)}
.hero::before{content:"";position:absolute;inset:0;background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;opacity:.3;pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(246,247,242,.94) 0%,rgba(246,247,242,.82) 48%,rgba(246,247,242,.6) 100%);pointer-events:none}
.hero > .container{position:relative;z-index:2}
.hero-grid{display:flex;align-items:center;gap:56px;min-height:520px}
.hero-copy{flex:0 0 56%;max-width:56%}
.hero-badge{margin-bottom:20px}
.hero h1{margin-bottom:20px;max-width:14em}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-2);max-width:36em;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px}
.hero-points li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-2)}
.hero-points li::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--brand-light);transform:rotate(45deg);flex-shrink:0}

.hero-visual{flex:0 0 40%;max-width:40%;position:relative}
.hero-visual::before{content:"";position:absolute;inset:18px -18px -18px 18px;border-radius:28px;background:rgba(15,107,87,.09)}
.hero-card{position:relative;background:#fff;border-radius:var(--r-lg);padding:12px;box-shadow:0 20px 46px rgba(15,107,87,.16);transform:rotate(-1.5deg);transition:transform .35s ease}
.hero-card:hover{transform:rotate(0deg) translateY(-4px)}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px}
.hero-card .badge-float{position:absolute;z-index:3}
.hb-1{top:34px;left:-22px}
.hb-2{bottom:52px;right:-16px}
.hb-3{bottom:-18px;left:34px}
.badge-float .num{font-size:15px;font-weight:800;color:var(--brand);margin-right:6px}
.badge-float .lbl{font-size:12.5px;color:var(--text-2)}

/* ---------- 步骤区 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;position:relative;margin-top:8px}
.step-grid::before{content:"";position:absolute;top:96px;left:8%;right:8%;border-top:1px dashed rgba(15,107,87,.28);z-index:0}
.step-card{position:relative;z-index:1;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px 28px;box-shadow:var(--sh);transition:transform .22s ease,box-shadow .22s ease}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.step-card:nth-child(2){margin-top:24px}
.step-no{font-size:64px;font-weight:800;line-height:1;color:rgba(15,107,87,.12);letter-spacing:-2px;font-variant-numeric:tabular-nums}
.step-card h3{margin:14px 0 12px}
.step-card p{font-size:15px;color:var(--text-2);line-height:1.85;margin:0}
.step-icon{width:44px;height:44px;border-radius:14px;background:rgba(15,107,87,.09);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;margin-top:18px}

/* ---------- 案例证明 ---------- */
.proof-wrap{display:flex;gap:24px;align-items:stretch}
.proof-left{flex:0 0 58%;max-width:58%}
.proof-right{flex:1;display:flex;flex-direction:column;gap:24px}
.proof-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;transition:transform .22s ease,box-shadow .22s ease}
.proof-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.proof-thumb{position:relative;background:var(--sub)}
.proof-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.proof-left .proof-thumb img{aspect-ratio:16/9}
.proof-body{padding:26px;display:flex;flex-direction:column;flex:1}
.proof-body h3{margin-bottom:12px}
.proof-body p{font-size:15px;color:var(--text-2);line-height:1.85;margin:0 0 20px}
.stat-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto}
.stat-pill{display:inline-flex;align-items:baseline;gap:6px;background:var(--sub);border-radius:999px;padding:7px 14px;font-size:13px;color:var(--text-2)}
.stat-pill b{font-size:15px;color:var(--brand);font-variant-numeric:tabular-nums}
.proof-right .proof-card{flex:1}
.proof-right .proof-thumb img{aspect-ratio:16/7}
.proof-right .proof-body{padding:22px 24px}
.proof-right .proof-body h3{font-size:18px;margin-bottom:8px}
.proof-right .proof-body p{font-size:14px;margin-bottom:14px}

/* ---------- 模块：频道入口 ---------- */
.channel-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.channel-card{display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px 20px;box-shadow:var(--sh);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(15,107,87,.24)}
.channel-card .cc-icon{width:40px;height:40px;border-radius:12px;background:var(--brand-grad);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:800}
.channel-card h4{margin:0;font-size:16px}
.channel-card span{font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-layout{display:flex;gap:56px;align-items:flex-start}
.faq-aside{flex:0 0 32%;max-width:32%}
.faq-aside h2{margin-bottom:16px}
.faq-aside p{font-size:15px;color:var(--text-2);line-height:1.85;margin-bottom:22px}
.faq-list{flex:1}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r);margin-bottom:12px;overflow:hidden;transition:box-shadow .22s ease}
.faq-item.open{box-shadow:var(--sh-hover)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:none;border:0;padding:20px 22px;font-size:17px;font-weight:600;color:var(--text);text-align:left;cursor:pointer;line-height:1.5;position:relative}
.faq-q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--brand-grad);opacity:0;transition:opacity .22s ease}
.faq-item.open .faq-q::before{opacity:1}
.faq-q .plus{position:relative;width:16px;height:16px;flex-shrink:0}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .26s ease,opacity .26s ease}
.faq-q .plus::before{left:0;top:7px;width:16px;height:2px}
.faq-q .plus::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-q .plus::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a-inner{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- 最新信息 ---------- */
.post-card{height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);display:flex;flex-direction:column;transition:transform .22s ease,box-shadow .22s ease}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.post-thumb{position:relative;display:block;background:var(--sub)}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.post-body{padding:22px;display:flex;flex-direction:column;flex:1}
.post-title{font-size:18px;line-height:1.5;font-weight:600;margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-title a{color:var(--text)}
.post-title a:hover{color:var(--brand)}
.post-excerpt{font-size:14px;line-height:1.8;color:var(--text-2);margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.post-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:5px}
.post-more:hover{color:var(--coral)}
.post-more::after{content:"→";transition:transform .2s ease}
.post-more:hover::after{transform:translateX(3px)}
.empty-state{background:#fff;border:1px dashed rgba(15,107,87,.28);border-radius:var(--r-lg);padding:56px 24px;text-align:center}
.empty-state .es-icon{width:56px;height:56px;border-radius:18px;background:var(--sub);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;margin-bottom:18px}
.empty-state p{color:var(--text-2);margin:0 0 20px;font-size:15px}

/* ---------- CTA 横幅 ---------- */
.cta-banner{position:relative;overflow:hidden;background:var(--dark);border-radius:28px;padding:56px 48px;text-align:center;color:#fff}
.cta-banner::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 82% 12%,rgba(47,163,127,.55),transparent 58%),radial-gradient(circle at 12% 92%,rgba(123,214,168,.32),transparent 55%)}
.cta-banner .deco{position:absolute;opacity:.12;pointer-events:none}
.cta-banner .deco-a{top:-40px;right:-40px;width:220px;height:220px;border-radius:50%;border:2px solid #fff}
.cta-banner .deco-b{bottom:-70px;left:-30px;width:180px;height:180px;border:2px solid #fff;transform:rotate(24deg);border-radius:28px}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto}
.cta-banner h2{color:#fff;margin-bottom:14px}
.cta-banner p{color:rgba(255,255,255,.82);font-size:16px;margin-bottom:30px}
.cta-note{margin:18px 0 0;font-size:13px;color:rgba(255,255,255,.6)}
.cta-banner .btn-primary{background:#fff;color:var(--brand);box-shadow:0 10px 26px rgba(0,0,0,.22)}
.cta-banner .btn-primary:hover{background:#fff;color:var(--brand);transform:translateY(-2px);box-shadow:0 16px 34px rgba(0,0,0,.3)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:0}
.footer-grid{padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);box-shadow:none}
.footer-brand .name{font-size:17px;font-weight:700;color:#fff;letter-spacing:.5px}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:34em;margin:0}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin:0 0 16px}
.footer-col li{margin-bottom:2px}
.footer-col a{font-size:14px;line-height:2.1;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:var(--lemon)}
.footer-contact li{font-size:14px;line-height:2.1;color:rgba(255,255,255,.72);display:flex;gap:8px}
.footer-contact li b{color:#fff;font-weight:600}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:22px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:rgba(255,255,255,.55)}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:var(--lemon)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .channel-cards{grid-template-columns:repeat(3,1fr)}
}
@media screen and (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .brand-actions .head-link,.brand-actions .icon-btn{display:none}
  .channel-inner{height:0;overflow:visible;position:relative}
  .channel-row{border-bottom:1px solid var(--line)}
  .channel-nav{position:absolute;top:0;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:8px 0;box-shadow:0 18px 34px rgba(15,107,87,.16);border-bottom:1px solid var(--line);display:none;z-index:90;overflow:visible;white-space:normal}
  .channel-nav.open{display:flex}
  .channel-link{justify-content:space-between;padding:12px 24px;border-radius:0;line-height:48px;height:48px;font-size:16px}
  .channel-link::after{content:"›";color:var(--text-3);font-size:20px;line-height:1}
  .channel-link.active{background:rgba(15,107,87,.08);color:var(--brand);box-shadow:none}
  .channel-link.active::after{color:var(--brand)}
  .hero{padding:48px 0 64px}
  .hero-grid{flex-direction:column;gap:40px;min-height:0}
  .hero-copy,.hero-visual{flex:0 0 auto;max-width:100%;width:100%}
  .hero h1{font-size:34px;max-width:none}
  .hero-visual{max-width:560px}
  .section{padding:64px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px}
  .step-grid{grid-template-columns:1fr;gap:20px}
  .step-grid::before{display:none}
  .step-card:nth-child(2){margin-top:0}
  .proof-wrap{flex-direction:column}
  .proof-left{flex:0 0 auto;max-width:100%}
  .faq-layout{flex-direction:column;gap:32px}
  .faq-aside{flex:0 0 auto;max-width:100%}
  .channel-cards{grid-template-columns:repeat(2,1fr)}
}
@media screen and (max-width:767px){
  .container{padding:0 16px}
  h1{font-size:30px}
  .hero h1{font-size:30px}
  h2{font-size:24px}
  h3{font-size:19px}
  .brand-row-inner{height:60px;gap:12px}
  .logo-text{font-size:15px;white-space:normal;line-height:1.3;max-width:190px}
  .logo-mark{width:34px;height:34px;border-radius:10px;font-size:13px}
  .brand-actions .btn-sm{display:none}
  .hero-actions .btn{width:100%}
  .hero-sub{font-size:15px}
  .section{padding:48px 0}
  .channel-cards{grid-template-columns:1fr}
  .step-card{padding:24px 20px}
  .step-no{font-size:52px}
  .proof-body{padding:20px}
  .cta-banner{padding:40px 22px;border-radius:22px}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a-inner{padding:0 18px 18px}
  .footer-bottom{flex-direction:column;gap:6px}
  .hero-card{transform:none}
  .hb-1{left:-6px;top:20px}
  .hb-2{right:-6px;bottom:40px}
  .hb-3{display:none}
}
@media screen and (max-width:519px){
  .hero-points{flex-direction:column;gap:8px}
  .stat-row{gap:8px}
  .badge-float{padding:6px 10px}
  .badge-float .num{font-size:13px}
  .badge-float .lbl{font-size:11px}
  .proof-right .proof-thumb img{aspect-ratio:16/9}
}

/* roulang page: article */
:root{
  --brand:#0F6B57;
  --brand-2:#2FA37F;
  --brand-3:#7BD6A8;
  --grad:linear-gradient(135deg,#0F6B57 0%,#2FA37F 60%,#7BD6A8 100%);
  --lime:#D8F35B;
  --coral:#FF6A45;
  --bg:#F6F7F2;
  --card:#FFFFFF;
  --soft:#EDF2EC;
  --dark:#0B3A2E;
  --text:#16211C;
  --text-2:#4A5A52;
  --text-3:#7C8B84;
  --line:rgba(22,33,28,.08);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh:0 2px 8px rgba(15,107,87,.06);
  --sh-h:0 14px 34px rgba(15,107,87,.14);
  --maxw:1200px;
  --ease:220ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--coral);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--text);letter-spacing:.5px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(47,163,127,.35);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 24px;
}
.tabnum{font-variant-numeric:tabular-nums;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 30px;
  font-size:16px;
  font-weight:600;
  line-height:1;
  border-radius:999px;
  border:1.5px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad);
  background-size:160% 160%;
  color:#fff;
  box-shadow:0 6px 18px rgba(15,107,87,.22);
}
.btn-primary:hover{
  color:#fff;
  background-position:100% 50%;
  transform:translateY(-2px);
  box-shadow:0 16px 34px rgba(15,107,87,.28);
}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94);}
.btn-ghost{
  background:transparent;
  border-color:var(--brand);
  color:var(--brand);
}
.btn-ghost:hover{background:rgba(15,107,87,.08);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(15,107,87,.09);}
.brand-row{height:64px;border-bottom:1px solid var(--line);}
.brand-row-inner{
  height:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--grad);
  color:#fff;
  font-size:15px;
  font-weight:700;
  letter-spacing:.5px;
  box-shadow:0 6px 14px rgba(15,107,87,.24);
  flex-shrink:0;
}
.logo-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:.5px;
  color:var(--text);
  white-space:nowrap;
}
.logo:hover .logo-text{color:var(--brand);}
.brand-actions{display:flex;align-items:center;gap:14px;}
.head-link{
  font-size:14px;
  color:var(--text-2);
  padding:6px 2px;
  display:none;
}
.head-link:hover{color:var(--brand);}
.icon-btn{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--text-2);
  transition:all var(--ease);
}
.icon-btn:hover{border-color:var(--brand-2);color:var(--brand);background:rgba(15,107,87,.05);}
.icon-btn:active{transform:translateY(1px);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:50%;
  width:18px;height:2px;
  background:var(--text);
  border-radius:2px;
  transform:translateX(-50%);
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg);top:0;}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg);top:0;}

.channel-row{background:#FBFCF9;border-bottom:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;height:52px;overflow:hidden;}
.channel-nav{
  display:flex;
  align-items:center;
  gap:6px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  width:100%;
  padding:2px 0;
}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-block;
  padding:8px 18px;
  border-radius:999px;
  font-size:15px;
  line-height:1.4;
  color:var(--text-2);
  white-space:nowrap;
  transition:all var(--ease);
}
.channel-link:hover{background:rgba(15,107,87,.08);color:var(--brand);}
.channel-link.active{
  background:var(--grad);
  color:#fff;
  font-weight:600;
  box-shadow:0 6px 16px rgba(15,107,87,.2);
}

/* ============ 页面头 ============ */
.article-hero{
  position:relative;
  overflow:hidden;
  background:var(--dark);
  padding:44px 0 52px;
}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.28;
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(11,58,46,.94) 0%,rgba(15,107,87,.86) 55%,rgba(47,163,127,.72) 100%);
}
.article-hero .container{position:relative;z-index:2;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.66);
  margin-bottom:22px;
  line-height:1.6;
}
.crumb a{color:rgba(255,255,255,.8);border-bottom:1px solid rgba(255,255,255,.28);padding-bottom:1px;}
.crumb a:hover{color:var(--lime);border-color:var(--lime);}
.crumb .sep{opacity:.5;}
.crumb .current{
  color:rgba(255,255,255,.62);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  max-width:100%;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;
  font-size:13px;
  font-weight:600;
  letter-spacing:.4px;
  margin-bottom:16px;
  backdrop-filter:blur(6px);
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(216,243,91,.22);}
.article-hero h1{
  color:#fff;
  font-size:40px;
  line-height:1.28;
  letter-spacing:.5px;
  max-width:900px;
  overflow-wrap:break-word;
}
.hero-lead{
  margin-top:18px;
  max-width:760px;
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.82);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-top:24px;
  font-size:14px;
  color:rgba(255,255,255,.78);
}
.meta-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.2);
  color:#fff;
  font-size:13px;
  font-weight:600;
}
.meta-chip .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);}
.meta-sep{opacity:.4;}

/* ============ 正文区 ============ */
.reading-wrap{padding:56px 0 0;}
.reading-grid{display:flex;justify-content:center;}
.reading-col{width:100%;max-width:780px;}
.paper{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh);
  padding:44px 48px;
}
.toc-box{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:#FBFCF9;
  padding:16px 20px;
  margin-bottom:32px;
}
.toc-box summary{
  cursor:pointer;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  list-style:none;
}
.toc-box summary::-webkit-details-marker{display:none;}
.toc-box summary::after{content:"＋";float:right;color:var(--brand-2);font-weight:700;}
.toc-box[open] summary::after{content:"－";}
.toc-box ul{margin-top:12px;padding-left:2px;}
.toc-box li{font-size:14px;line-height:2;color:var(--text-2);}

.article-body{font-size:16px;line-height:1.9;letter-spacing:.02em;color:var(--text);max-width:100%;overflow-wrap:break-word;}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;
  font-size:24px;
  line-height:1.4;
  margin:40px 0 16px;
  padding-left:16px;
  letter-spacing:.5px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:4px;
  border-radius:3px;
  background:var(--grad);
}
.article-body h3{font-size:20px;line-height:1.45;margin:32px 0 12px;font-weight:600;}
.article-body h4{font-size:17px;margin:24px 0 10px;font-weight:600;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul{list-style:none;padding-left:20px;}
.article-body ul>li{position:relative;padding-left:16px;margin-bottom:8px;}
.article-body ul>li::before{
  content:"";
  position:absolute;
  left:0;top:.74em;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--brand-2);
}
.article-body ol{list-style:decimal;}
.article-body ol>li{margin-bottom:8px;padding-left:4px;}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  background:rgba(15,107,87,.08);
  border-left:4px solid var(--brand);
  border-radius:0 12px 12px 0;
  color:var(--text-2);
  font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  margin:24px 0;
  border-radius:12px;
  overflow:hidden;
  font-size:15px;
  border:1px solid var(--line);
}
.article-body thead th{
  background:var(--soft);
  color:var(--brand);
  font-weight:600;
  text-align:left;
  padding:12px 16px;
}
.article-body tbody td{padding:12px 16px;color:var(--text-2);}
.article-body tbody tr:nth-child(even){background:#FAFBF7;}
.article-body img{width:100%;height:auto;border-radius:16px;margin:8px 0 12px;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;line-height:1.5;color:var(--text-3);margin-top:6px;}
.article-body a{color:var(--brand);text-decoration:none;border-bottom:1px dashed var(--brand);}
.article-body a:hover{color:var(--coral);border-bottom-color:var(--coral);}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  text-align:center;
  padding:72px 24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh);
}
.empty-state .empty-icon{
  width:64px;height:64px;
  margin:0 auto 20px;
  border-radius:20px;
  background:var(--soft);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:24px;}

/* ============ 文末 ============ */
.article-foot{
  margin-top:36px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.article-foot .foot-note{font-size:13px;color:var(--text-3);line-height:1.7;}

/* ============ 相关推荐 ============ */
.related{padding:64px 0 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:28px;
}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  letter-spacing:.6px;margin-bottom:8px;
}
.section-head .eyebrow::before{content:"";width:18px;height:3px;border-radius:2px;background:var(--lime);}
.section-head h2{font-size:30px;line-height:1.3;}
.section-head p{font-size:14px;color:var(--text-2);margin-top:8px;max-width:560px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
  white-space:nowrap;
}
.text-link svg{transition:transform var(--ease);}
.text-link:hover{color:var(--coral);}
.text-link:hover svg{transform:translateX(4px);}

.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.mini-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh);
  overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  height:100%;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-h);border-color:rgba(15,107,87,.16);color:inherit;}
.mini-thumb{position:relative;aspect-ratio:16/10;background:linear-gradient(135deg,#E3EFE8,#CFE6DA);overflow:hidden;}
.mini-thumb img{width:100%;height:100%;object-fit:cover;}
.mini-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.mini-body h3{
  font-size:16px;line-height:1.55;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-top:auto;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--soft);color:var(--brand);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);}
.badge-float{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.92);
  color:var(--brand);
  box-shadow:0 4px 14px rgba(15,107,87,.14);
  backdrop-filter:blur(4px);
}

/* ============ CTA ============ */
.cta-section{padding:80px 0 0;}
.cta-banner{
  position:relative;
  overflow:hidden;
  border-radius:28px;
  padding:56px 40px;
  text-align:center;
  background:linear-gradient(135deg,#0B3A2E 0%,#0F6B57 55%,#2FA37F 100%);
  box-shadow:0 20px 48px rgba(11,58,46,.24);
}
.cta-banner::before{
  content:"";
  position:absolute;
  width:320px;height:320px;
  right:-110px;top:-140px;
  border-radius:50%;
  border:2px solid rgba(255,255,255,.14);
}
.cta-banner::after{
  content:"";
  position:absolute;
  width:180px;height:180px;
  left:-70px;bottom:-90px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(216,243,91,.22),transparent 68%);
}
.cta-banner .inner{position:relative;z-index:2;max-width:720px;margin:0 auto;}
.cta-banner h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:14px;}
.cta-banner p{color:rgba(255,255,255,.8);font-size:15px;line-height:1.85;margin-bottom:28px;}
.cta-banner .btn-primary{background:#fff;color:var(--brand);box-shadow:0 12px 28px rgba(0,0,0,.18);}
.cta-banner .btn-primary:hover{background:var(--lime);color:var(--dark);}
.cta-note{margin-top:16px;font-size:12.5px;color:rgba(255,255,255,.6);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  background:var(--dark);
  color:rgba(255,255,255,.76);
  padding:64px 0 0;
}
.footer-grid{padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .name{color:#fff;font-size:17px;font-weight:700;letter-spacing:.5px;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:360px;}
.footer-col h4{color:#fff;font-size:15px;margin:0 0 16px;font-weight:600;}
.footer-col ul li{font-size:14px;line-height:2.1;}
.footer-col ul li a{color:rgba(255,255,255,.7);}
.footer-col ul li a:hover{color:var(--lime);}
.footer-contact li{font-size:14px;line-height:2.1;color:rgba(255,255,255,.66);}
.footer-contact li b{color:#fff;font-weight:600;margin-right:8px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;
  padding:20px 0 26px;
  font-size:13px;
  color:rgba(255,255,255,.65);
}
.site-footer .logo-mark{background:var(--grad);}

/* ============ 响应式 ============ */
@media screen and (min-width:1024px){
  .head-link{display:inline-block;}
}
@media screen and (max-width:1023px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .channel-row{display:none;}
  .channel-row.is-open{display:block;}
  .channel-inner{height:auto;padding:10px 0 16px;}
  .channel-nav{
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    overflow:visible;
  }
  .channel-link{
    display:flex;
    align-items:center;
    justify-content:space-between;
    min-height:48px;
    padding:0 18px;
    border-radius:12px;
    font-size:15px;
  }
  .channel-link::after{content:"›";font-size:18px;opacity:.45;}
  .channel-link.active::after{opacity:.8;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .paper{padding:34px 30px;}
  .article-hero h1{font-size:32px;}
}
@media screen and (max-width:767px){
  .container{padding:0 16px;}
  .brand-row{height:60px;}
  .logo-text{font-size:15px;white-space:normal;line-height:1.3;max-width:170px;}
  .brand-actions{gap:8px;}
  .brand-actions .btn-sm{display:none;}
  .article-hero{padding:32px 0 38px;}
  .article-hero h1{font-size:26px;line-height:1.35;}
  .hero-lead{font-size:14.5px;-webkit-line-clamp:4;}
  .article-meta{font-size:13px;gap:8px;}
  .reading-wrap{padding:32px 0 0;}
  .paper{padding:24px 18px;border-radius:var(--r-md);}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .article-body table{font-size:14px;display:block;overflow-x:auto;white-space:nowrap;}
  .related{padding:44px 0 0;}
  .related-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .section-head h2{font-size:24px;}
  .cta-section{padding:52px 0 0;}
  .cta-banner{padding:40px 22px;border-radius:20px;}
  .cta-banner h2{font-size:22px;}
  .btn{padding:13px 24px;font-size:15px;min-height:44px;}
  .btn-block{width:100%;}
  .site-footer{margin-top:64px;padding-top:44px;}
  .footer-col{margin-top:20px;}
  .footer-desc{max-width:100%;}
  .article-foot{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:519px){
  .logo-text{font-size:14px;max-width:140px;}
  .article-hero h1{font-size:23px;}
  .paper{padding:20px 15px;}
  .crumb{font-size:12px;}
  .btn{width:100%;}
  .article-foot .btn{width:auto;}
}

/* roulang page: category1 */
:root{
  --green:#0F6B57;
  --green-lt:#2FA37F;
  --green-soft:#7BD6A8;
  --lemon:#D8F35B;
  --coral:#FF6A45;
  --bg:#F6F7F2;
  --card:#FFFFFF;
  --block:#EDF2EC;
  --dark:#0B3A2E;
  --ink:#16211C;
  --ink-2:#4A5A52;
  --ink-3:#7C8B84;
  --line:rgba(22,33,28,.08);
  --grad:linear-gradient(135deg,#0F6B57 0%,#2FA37F 60%,#7BD6A8 100%);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(15,107,87,.06);
  --sh-2:0 14px 34px rgba(15,107,87,.14);
  --t:220ms ease;
  --gap-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--green);text-decoration:none;border-bottom:1px dashed rgba(15,107,87,.42);transition:color var(--t),border-color var(--t)}
a:hover{color:var(--coral);border-bottom-color:rgba(255,106,69,.6)}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(47,163,127,.35);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:var(--r-pill);
  font-size:16px;font-weight:600;line-height:1;letter-spacing:.4px;
  border:0;border-bottom:0;cursor:pointer;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),filter var(--t);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(15,107,87,.22)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,107,87,.3);color:#fff;filter:saturate(1.06)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94)}
.btn-ghost{background:transparent;color:var(--green);border:1.5px solid var(--green)}
.btn-ghost:hover{background:rgba(15,107,87,.08);transform:translateY(-2px);color:var(--green)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-outline-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;border-bottom:0;color:var(--green)}
.text-link .arw{transition:transform var(--t)}
.text-link:hover .arw{transform:translateX(4px)}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--t)}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(11,58,46,.09)}
.brand-row{height:64px;display:flex;align-items:center;background:#fff}
.brand-row-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.logo{display:inline-flex;align-items:center;gap:12px;border-bottom:0;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:12px;background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;letter-spacing:.6px;flex-shrink:0;
  box-shadow:0 4px 12px rgba(15,107,87,.24);
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.5px;color:var(--ink);white-space:nowrap}
.logo:hover .logo-text{color:var(--green)}
.brand-actions{display:flex;align-items:center;gap:14px}
.head-link{font-size:14px;color:var(--ink-2);border-bottom:0;font-weight:500}
.head-link:hover{color:var(--green)}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;
  color:var(--green);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.icon-btn:hover{background:var(--block);transform:translateY(-1px);box-shadow:var(--sh-1)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--green);border-radius:2px;
  transform:translateX(-50%);transition:transform var(--t),opacity var(--t);
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg);top:0}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg);top:0}

.channel-row{height:52px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center}
.channel-inner{display:flex;align-items:center;height:52px}
.channel-nav{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:2px 0}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-block;padding:8px 18px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  border-bottom:0;transition:background var(--t),color var(--t);
}
.channel-link:hover{background:var(--block);color:var(--green)}
.channel-link.active{background:var(--grad);color:#fff;font-weight:600;box-shadow:0 4px 14px rgba(15,107,87,.22)}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:40px 0 52px;min-height:268px;display:flex;align-items:center;
  background:linear-gradient(135deg,#0B3A2E 0%,#0F6B57 55%,#2FA37F 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  opacity:.3;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,58,46,.9) 0%,rgba(11,58,46,.62) 52%,rgba(11,58,46,.3) 100%);
}
.page-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.75);margin-bottom:18px}
.crumbs a{color:rgba(255,255,255,.82);border-bottom:1px dashed rgba(255,255,255,.4)}
.crumbs a:hover{color:var(--lemon);border-bottom-color:var(--lemon)}
.crumbs span[aria-current]{color:#fff;font-weight:600}
.page-hero h1{
  font-size:44px;line-height:1.25;font-weight:700;letter-spacing:.5px;
  margin-bottom:14px;color:#fff;
}
.hero-lead{font-size:16px;line-height:1.8;color:rgba(255,255,255,.88);max-width:680px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip-light{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.26);
  font-size:13px;font-weight:500;color:#fff;backdrop-filter:blur(2px);
}
.chip-light i{width:7px;height:7px;border-radius:50%;background:var(--lemon);display:inline-block}

/* ---------- 板块基础 ---------- */
.section{padding-top:var(--gap-section)}
.section:first-of-type{padding-top:72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:.4px;position:relative;padding-left:18px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:5px;height:26px;border-radius:3px;background:var(--grad);
}
.section-head p{font-size:14.5px;color:var(--ink-3);max-width:520px;margin-top:6px}
.section-head .head-side{font-size:14px;color:var(--ink-3)}

/* ---------- 主推大卡 ---------- */
.feature-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);height:100%;
  transition:transform var(--t),box-shadow var(--t);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.feature-media{position:relative;background:linear-gradient(135deg,#DFEAE2,#C8DED2);aspect-ratio:16/10;overflow:hidden}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform 480ms ease}
.feature-card:hover .feature-media img{transform:scale(1.03)}
.tag-float{
  position:absolute;left:16px;top:16px;
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.94);color:var(--green);
  font-size:12.5px;font-weight:600;letter-spacing:.3px;
  box-shadow:0 4px 14px rgba(11,58,46,.14);
}
.feature-body{padding:28px}
.feature-body h2{font-size:26px;line-height:1.35;font-weight:700;margin-bottom:14px}
.feature-body h2 a{border-bottom:0;color:var(--ink)}
.feature-body h2 a:hover{color:var(--green)}
.feature-body p{font-size:15.5px;color:var(--ink-2);line-height:1.85;margin-bottom:14px}
.feature-body p:last-of-type{margin-bottom:22px}
.data-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.data-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:var(--r-pill);
  background:var(--block);font-size:13px;color:var(--ink-2);
}
.data-chip b{font-size:13.5px;font-weight:700;color:var(--green);font-variant-numeric:tabular-nums}
.data-chip i{width:6px;height:6px;border-radius:50%;background:var(--lemon);display:inline-block;box-shadow:0 0 0 2px rgba(216,243,91,.35)}

/* ---------- 侧栏要点卡 ---------- */
.point-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);height:100%;
  display:flex;flex-direction:column;
}
.point-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.point-card .point-sub{font-size:13.5px;color:var(--ink-3);margin-bottom:20px;line-height:1.7}
.point-list{display:flex;flex-direction:column;gap:16px;margin-bottom:22px}
.point-list li{display:flex;gap:12px;align-items:flex-start}
.point-num{
  flex:0 0 26px;width:26px;height:26px;border-radius:9px;
  background:rgba(15,107,87,.08);color:var(--green);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;margin-top:3px;
}
.point-list b{display:block;font-size:15px;font-weight:600;color:var(--ink);line-height:1.5;margin-bottom:2px}
.point-list span{font-size:13.5px;color:var(--ink-3);line-height:1.65}
.point-card .point-foot{margin-top:auto;padding-top:18px;border-top:1px dashed var(--line)}

/* ---------- 内容卡 ---------- */
.content-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t);
}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.content-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#E4EEE6,#CADFD3)}
.content-media img{width:100%;height:100%;object-fit:cover;transition:transform 480ms ease}
.content-card:hover .content-media img{transform:scale(1.04)}
.content-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto}
.content-body .kicker{font-size:12.5px;font-weight:600;color:var(--green);letter-spacing:.5px;margin-bottom:10px}
.content-body h3{font-size:17.5px;line-height:1.5;font-weight:600;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.content-body h3 a{border-bottom:0;color:var(--ink)}
.content-body h3 a:hover{color:var(--green)}
.content-body p{font-size:14px;line-height:1.75;color:var(--ink-3);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px}
.content-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);padding-top:14px}
.content-foot time{font-size:12.5px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--green);border-bottom:0}
.arrow-link:hover{color:var(--coral)}
.arrow-link .arw{transition:transform var(--t)}
.arrow-link:hover .arw{transform:translateX(4px)}

/* ---------- 时间线 ---------- */
.timeline-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:12px 30px;box-shadow:var(--sh-1);
}
.tl-item{display:grid;grid-template-columns:150px 1fr;gap:26px;padding:24px 0;border-top:1px solid var(--line)}
.tl-item:first-child{border-top:0}
.tl-date{font-size:13.5px;font-weight:700;color:var(--green);font-variant-numeric:tabular-nums;letter-spacing:.4px}
.tl-date small{display:block;font-size:12px;font-weight:500;color:var(--ink-3);letter-spacing:0;margin-top:4px}
.tl-item h3{font-size:16.5px;font-weight:600;line-height:1.55;margin-bottom:6px}
.tl-item p{font-size:14px;color:var(--ink-3);line-height:1.75}
.tl-tag{display:inline-block;margin-left:10px;padding:2px 10px;border-radius:var(--r-pill);
  background:rgba(216,243,91,.4);color:#3C4A1F;font-size:11.5px;font-weight:600;vertical-align:middle}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-1);transition:box-shadow var(--t)}
.faq-item:hover{box-shadow:0 8px 22px rgba(15,107,87,.09)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.55;
  position:relative;transition:color var(--t),background var(--t);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--grad);opacity:0;transition:opacity var(--t);
}
.faq-item.open .faq-q::before{opacity:1}
.faq-item.open .faq-q{color:var(--green);background:rgba(15,107,87,.03)}
.faq-icon{flex:0 0 26px;width:26px;height:26px;border-radius:50%;background:var(--block);
  position:relative;transition:transform 260ms ease,background 260ms ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--green);border-radius:2px;transform:translate(-50%,-50%)}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:opacity 200ms ease}
.faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(47,163,127,.18)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms ease}
.faq-a-inner{padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-a-inner a{font-weight:600}

/* ---------- CTA ---------- */
.cta-section{padding-top:var(--gap-section)}
.cta-banner{
  position:relative;overflow:hidden;border-radius:28px;
  background:linear-gradient(120deg,#0B3A2E 0%,#0F6B57 58%,#2FA37F 100%);
  color:#fff;padding:56px 32px;text-align:center;
}
.cta-banner::before{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,214,168,.34),transparent 68%);
}
.cta-banner::after{
  content:"";position:absolute;left:-70px;bottom:-110px;width:260px;height:260px;
  border:1px solid rgba(255,255,255,.18);border-radius:50%;
}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto}
.cta-banner h2{font-size:28px;line-height:1.4;font-weight:700;margin-bottom:14px}
.cta-banner p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.84);margin-bottom:28px}
.cta-note{display:block;margin-top:18px;font-size:12.5px;color:rgba(255,255,255,.62);letter-spacing:.3px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--gap-section);background:var(--dark);color:rgba(255,255,255,.78);padding-top:64px}
.footer-grid{row-gap:32px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .logo-mark{width:38px;height:38px;border-radius:11px;font-size:12.5px}
.footer-brand .name{font-size:17px;font-weight:700;color:#fff;letter-spacing:.4px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:360px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;line-height:1.7;color:rgba(255,255,255,.66)}
.footer-col a{color:rgba(255,255,255,.72);border-bottom:0;transition:color var(--t)}
.footer-col a:hover{color:var(--lemon)}
.footer-contact b{display:inline-block;min-width:64px;color:#fff;font-weight:600}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--gap-section:64px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .channel-row{height:0;border-bottom:0;overflow:visible}
  .channel-inner{height:0}
  .channel-nav{
    position:fixed;top:64px;right:0;width:min(310px,88vw);height:calc(100vh - 64px);
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:16px;margin:0;overflow-y:auto;
    border-left:1px solid var(--line);
    box-shadow:-18px 0 44px rgba(11,58,46,.16);
    transform:translateX(106%);transition:transform 280ms ease;z-index:70;
  }
  .channel-nav.is-open{transform:translateX(0)}
  .channel-link{
    width:100%;display:flex;align-items:center;justify-content:space-between;
    height:48px;padding:0 16px;border-radius:12px;font-size:15px;
  }
  .channel-link::after{content:"›";color:var(--ink-3);font-size:17px;line-height:1}
  .channel-link.active::after{color:rgba(255,255,255,.85)}
  .page-hero h1{font-size:34px}
  .section-head h2{font-size:26px}
  .content-body h3{font-size:16.5px}
  .cta-banner h2{font-size:24px}
  .head-link{display:none}
}
@media (max-width:767px){
  :root{--gap-section:48px}
  .container{padding-left:16px;padding-right:16px}
  .logo-text{font-size:15.5px;letter-spacing:.2px}
  .logo-mark{width:36px;height:36px;border-radius:10px;font-size:12px}
  .brand-actions{gap:10px}
  .page-hero{padding:32px 0 40px;min-height:0}
  .page-hero h1{font-size:30px}
  .hero-lead{font-size:14.5px}
  .section:first-of-type{padding-top:52px}
  .section-head{margin-bottom:24px}
  .section-head h2{font-size:23px;padding-left:14px}
  .section-head h2::before{height:20px;width:4px}
  .feature-body{padding:20px}
  .feature-body h2{font-size:21px}
  .feature-body p{font-size:14.5px}
  .point-card{padding:20px}
  .content-body{padding:18px}
  .timeline-wrap{padding:6px 18px}
  .tl-item{grid-template-columns:1fr;gap:8px;padding:20px 0}
  .faq-q{padding:16px 18px;font-size:15.5px;gap:12px}
  .faq-a-inner{padding:0 18px 18px 18px;font-size:14.5px}
  .cta-banner{padding:38px 20px;border-radius:22px}
  .cta-banner h2{font-size:21px}
  .btn{width:100%;padding:14px 22px}
  .btn-sm{width:auto}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .site-footer{padding-top:48px}
}
@media (max-width:520px){
  .hero-chips{gap:8px}
  .chip-light{font-size:12px;padding:6px 12px}
  .data-chip{font-size:12px;padding:7px 12px}
}

/* roulang page: category2 */
:root{
  --ink:#16211C;--sub:#4A5A52;--muted:#7C8B84;
  --green:#0F6B57;--green2:#2FA37F;--green3:#7BD6A8;
  --lime:#D8F35B;--coral:#FF6A45;
  --bg:#F6F7F2;--card:#FFFFFF;--soft:#EDF2EC;--dark:#0B3A2E;
  --line:rgba(22,33,28,.08);--line-strong:rgba(22,33,28,.14);
  --r-lg:24px;--r-md:16px;--r-sm:12px;
  --shadow-1:0 2px 8px rgba(15,107,87,.06);
  --shadow-2:0 14px 34px rgba(15,107,87,.14);
  --grad:linear-gradient(135deg,#0F6B57 0%,#2FA37F 60%,#7BD6A8 100%);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.8;letter-spacing:.01em;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:var(--green);text-decoration:none;border-bottom:1px dashed rgba(15,107,87,.45);transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--coral);border-bottom-color:rgba(255,106,69,.55)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:3px solid rgba(47,163,127,.35);outline-offset:2px;border-radius:6px}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:200;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .24s ease}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,107,87,.1)}
.brand-row{background:#fff}
.brand-row-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.logo{display:inline-flex;align-items:center;gap:12px;border-bottom:none;flex:0 0 auto}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--grad);color:#fff;font-size:14px;font-weight:800;letter-spacing:.5px;box-shadow:0 4px 12px rgba(15,107,87,.24);font-variant-numeric:tabular-nums}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.5px;color:var(--ink);white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:12px}
.head-link{font-size:14px;color:var(--sub);border-bottom:none;padding:6px 2px}
.head-link:hover{color:var(--green)}
.icon-btn{width:38px;height:38px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--soft);color:var(--green);border:1px solid transparent;cursor:pointer;transition:all .2s ease}
.icon-btn:hover{background:#fff;border-color:rgba(15,107,87,.28);color:var(--green);box-shadow:var(--shadow-1)}
.icon-btn:active{transform:translateY(1px)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:600;font-size:16px;line-height:1.2;padding:14px 30px;border:1.5px solid transparent;cursor:pointer;border-bottom:none;transition:all .22s ease;white-space:nowrap}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 18px rgba(15,107,87,.22)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(15,107,87,.3);filter:brightness(1.04)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94)}
.btn-ghost{background:transparent;color:var(--green);border-color:rgba(15,107,87,.42)}
.btn-ghost:hover{background:rgba(15,107,87,.08);color:var(--green);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:12px;background:var(--soft);border:1px solid transparent;cursor:pointer;position:relative;align-items:center;justify-content:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{display:block;width:18px;height:2px;border-radius:2px;background:var(--green);transition:transform .24s ease,opacity .24s ease}
.nav-toggle span{position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.site-header.nav-open .nav-toggle span{background:transparent}
.site-header.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
.site-header.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

.channel-row{background:#FBFCF8;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;height:52px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-inner::-webkit-scrollbar{height:0;display:none}
.channel-nav{display:flex;align-items:center;gap:8px;white-space:nowrap}
.channel-link{display:inline-block;padding:8px 18px;border-radius:999px;font-size:15px;color:var(--sub);border-bottom:none;transition:all .2s ease}
.channel-link:hover{background:rgba(15,107,87,.07);color:var(--green)}
.channel-link.active{background:var(--grad);color:#fff;font-weight:600;box-shadow:0 4px 12px rgba(15,107,87,.2)}
.channel-link.active:hover{color:#fff}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;padding:44px 0 46px}
.page-hero::before{content:"";position:absolute;inset:0;background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;opacity:.3}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(11,58,46,.94) 0%,rgba(15,107,87,.78) 55%,rgba(47,163,127,.42) 100%)}
.page-hero-inner{position:relative;z-index:2;max-width:820px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px}
.breadcrumb a{color:rgba(255,255,255,.82);border-bottom:1px dashed rgba(255,255,255,.4)}
.breadcrumb a:hover{color:var(--lime);border-bottom-color:rgba(216,243,91,.6)}
.breadcrumb .sep{opacity:.5}
.page-hero h1{font-size:44px;line-height:1.25;font-weight:700;letter-spacing:.5px;color:#fff}
.page-hero .hero-sub{margin-top:14px;font-size:16px;line-height:1.75;color:rgba(255,255,255,.86);max-width:660px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);font-size:13px;color:#fff}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--lime);display:block}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:.4px}
.section-head p{margin-top:10px;font-size:15px;color:var(--sub);max-width:640px}
.section-head .head-link-more{font-size:14px;font-weight:600;border-bottom:none;color:var(--green);white-space:nowrap}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:1.2px;color:var(--green);text-transform:uppercase;margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--green2)}

/* filter chips */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:14px;padding:16px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);margin-bottom:32px}
.filter-label{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.6px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{padding:7px 16px;border-radius:999px;background:var(--soft);color:var(--sub);font-size:14px;border:1px solid transparent;cursor:pointer;transition:all .2s ease}
.chip:hover{background:#fff;border-color:rgba(15,107,87,.3);color:var(--green)}
.chip.is-on{background:var(--grad);color:#fff;font-weight:600;box-shadow:0 4px 12px rgba(15,107,87,.2)}
.filter-note{margin-left:auto;font-size:13px;color:var(--muted)}

/* story cards */
.story-card{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.story-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(15,107,87,.16)}
.story-thumb{position:relative;display:block;aspect-ratio:16/10;background:linear-gradient(135deg,#BFE6D3,#0F6B57);border-bottom:none;overflow:hidden}
.story-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.story-card:hover .story-thumb img{transform:scale(1.04)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.4px}
.badge-on-img{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--green);box-shadow:0 3px 10px rgba(0,0,0,.12)}
.badge-on-img i{width:6px;height:6px;border-radius:50%;background:var(--lime);display:block}
.story-body{display:flex;flex-direction:column;flex:1 1 auto;padding:22px;gap:10px}
.story-title{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink)}
.story-title a{color:inherit;border-bottom:none;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.story-title a:hover{color:var(--green)}
.story-desc{font-size:14px;line-height:1.75;color:var(--sub);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.story-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--green);border-bottom:none}
.text-link .arrow{transition:transform .2s ease;display:inline-block}
.text-link:hover{color:var(--coral)}
.text-link:hover .arrow{transform:translateX(4px)}

/* framework strip */
.frame-strip{background:var(--soft);border-radius:var(--r-lg);padding:40px;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.frame-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px 20px;box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease}
.frame-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.frame-item .step-no{font-size:26px;font-weight:800;color:rgba(15,107,87,.16);line-height:1;font-variant-numeric:tabular-nums;letter-spacing:1px}
.frame-item h3{font-size:17px;font-weight:600;margin-top:10px}
.frame-item p{font-size:14px;line-height:1.75;color:var(--sub);margin-top:8px}

/* data / split block */
.split-block{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.split-copy h2{font-size:32px;line-height:1.3;font-weight:700}
.split-copy p{margin-top:16px;font-size:16px;line-height:1.85;color:var(--sub);max-width:560px}
.stat-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.stat-pill{display:inline-flex;align-items:baseline;gap:8px;padding:10px 18px;border-radius:999px;background:var(--soft);border:1px solid rgba(15,107,87,.1);font-size:13px;color:var(--sub)}
.stat-pill b{font-size:18px;font-weight:700;color:var(--green);font-variant-numeric:tabular-nums}
.split-media{position:relative}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-2)}
.split-media .float-badge{position:absolute;left:20px;bottom:20px;display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;background:rgba(255,255,255,.94);font-size:13px;font-weight:600;color:var(--ink);box-shadow:0 8px 20px rgba(15,107,87,.16);font-variant-numeric:tabular-nums}
.split-media .float-badge i{width:8px;height:8px;border-radius:50%;background:var(--lime);display:block}

/* checklist */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 28px;margin-top:26px}
.check-list li{position:relative;padding-left:26px;font-size:15px;line-height:1.8;color:var(--sub)}
.check-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--green2)}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);margin-bottom:12px;overflow:hidden;transition:box-shadow .22s ease}
.faq-item[open]{box-shadow:var(--shadow-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:17px;font-weight:600;color:var(--ink);transition:color .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--green)}
.faq-item[open] summary::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:0 3px 3px 0;background:var(--green2)}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--green);border-radius:2px;transition:transform .26s ease,opacity .26s ease}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--sub)}

/* CTA */
.cta-banner{position:relative;overflow:hidden;border-radius:28px;background:linear-gradient(120deg,#0B3A2E 0%,#0F6B57 55%,#2FA37F 100%);color:#fff;padding:56px 40px;text-align:center}
.cta-banner h2{font-size:28px;line-height:1.35;font-weight:700;letter-spacing:.4px;max-width:760px;margin:0 auto}
.cta-banner p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);max-width:640px;margin-left:auto;margin-right:auto}
.cta-banner .btn{margin-top:28px}
.cta-banner .cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.6)}
.cta-deco{position:absolute;pointer-events:none;opacity:.14}
.cta-deco.d1{right:-40px;top:-40px;width:200px;height:200px}
.cta-deco.d2{left:-30px;bottom:-50px;width:180px;height:180px}

/* footer */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:72px}
.footer-grid{padding-bottom:40px;row-gap:32px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .logo-mark{width:36px;height:36px;flex:0 0 36px;border-radius:11px;font-size:13px}
.footer-brand .name{font-size:17px;font-weight:700;color:#fff;letter-spacing:.4px}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:380px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul li{margin-bottom:2px}
.footer-col ul a{display:inline-block;font-size:14px;line-height:2.1;color:rgba(255,255,255,.7);border-bottom:none;transition:color .2s ease,transform .2s ease}
.footer-col ul a:hover{color:var(--lime);transform:translateX(3px)}
.footer-contact li{font-size:14px;line-height:2.1;color:rgba(255,255,255,.7)}
.footer-contact b{font-weight:600;color:#fff;margin-right:10px;display:inline-block;min-width:64px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55)}

/* toast */
.tip-toast{position:fixed;left:50%;bottom:32px;transform:translate(-50%,20px);background:rgba(11,58,46,.95);color:#fff;font-size:14px;padding:12px 22px;border-radius:999px;box-shadow:0 14px 34px rgba(11,58,46,.3);opacity:0;pointer-events:none;transition:all .28s ease;z-index:500;max-width:90vw;text-align:center}
.tip-toast.show{opacity:1;transform:translate(-50%,0)}

/* responsive */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .head-link{display:none}
  .channel-row{position:fixed;top:64px;left:0;right:0;background:#fff;border-top:1px solid var(--line);box-shadow:0 18px 30px rgba(11,58,46,.14);transform:translateY(-130%);transition:transform .28s ease;max-height:calc(100vh - 64px);overflow-y:auto}
  .site-header.nav-open .channel-row{transform:translateY(0)}
  .channel-inner{display:block;height:auto;padding-top:10px;padding-bottom:16px;overflow:visible}
  .channel-nav{flex-direction:column;align-items:stretch;gap:2px;white-space:normal}
  .channel-link{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 16px;border-radius:12px;font-size:16px}
  .channel-link::after{content:"›";font-size:20px;color:var(--muted);line-height:1}
  .channel-link.active::after{color:rgba(255,255,255,.85)}
  .page-hero h1{font-size:36px}
  .split-block{grid-template-columns:1fr;gap:32px}
  .frame-strip{grid-template-columns:repeat(2,1fr);padding:28px}
  .section{padding:56px 0}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px}
  .logo-text{font-size:16px}
  .page-hero{padding:34px 0 36px}
  .page-hero h1{font-size:30px}
  .page-hero .hero-sub{font-size:15px}
  .section{padding:44px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .section-head h2,.split-copy h2{font-size:24px}
  .filter-bar{padding:14px 16px}
  .filter-note{margin-left:0;width:100%}
  .frame-strip{grid-template-columns:1fr;padding:20px;gap:14px}
  .check-list{grid-template-columns:1fr}
  .cta-banner{padding:40px 22px;border-radius:22px}
  .cta-banner h2{font-size:22px}
  .btn{width:100%;padding:14px 22px}
  .btn-sm{width:auto}
  .brand-actions .btn-sm{padding:9px 16px}
  .site-footer{padding-top:44px}
  .footer-bottom{flex-direction:column;gap:6px}
  .story-body{padding:18px}
}
@media (max-width:520px){
  .logo-text{font-size:15px;letter-spacing:0}
  .logo-mark{width:34px;height:34px;flex:0 0 34px;font-size:13px}
  .brand-actions{gap:8px}
  .page-hero h1{font-size:27px}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-answer{padding:0 18px 18px}
}

/* roulang page: category3 */
:root{
  --brand:#0F6B57;
  --brand-2:#2FA37F;
  --brand-3:#7BD6A8;
  --accent:#D8F35B;
  --coral:#FF6A45;
  --bg:#F6F7F2;
  --card:#FFFFFF;
  --soft:#EDF2EC;
  --dark:#0B3A2E;
  --text:#16211C;
  --muted:#4A5A52;
  --weak:#7C8B84;
  --line:rgba(22,33,28,.08);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-1:0 2px 8px rgba(15,107,87,.06);
  --shadow-2:0 14px 34px rgba(15,107,87,.14);
  --grad:linear-gradient(135deg,#0F6B57 0%,#2FA37F 60%,#7BD6A8 100%);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
h1,h2,h3,h4,h5,p,figure,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--coral);}
button{font-family:inherit;cursor:pointer;background:none;border:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(47,163,127,.35);border-radius:8px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--soft);}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--brand);text-transform:uppercase;
  background:rgba(15,107,87,.08);
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 2px rgba(15,107,87,.12);}
h1{font-size:44px;line-height:1.25;font-weight:700;letter-spacing:.5px;margin:0;}
h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:.3px;margin:0;}
h3{font-size:22px;line-height:1.45;font-weight:600;margin:0;}
h4{font-size:17px;line-height:1.5;font-weight:600;margin:0;}
.lead{font-size:16px;line-height:1.8;color:var(--muted);margin-top:14px;max-width:68ch;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-size:16px;font-weight:600;line-height:1.2;
  padding:14px 30px;border:none;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;
  text-align:center;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 18px rgba(15,107,87,.20);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,107,87,.28);background:linear-gradient(135deg,#12836a 0%,#38ac88 60%,#8ce0b6 100%);}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94);}
.btn-outline{background:transparent;color:var(--brand);border:1.5px solid var(--brand);}
.btn-outline:hover{background:rgba(15,107,87,.08);color:var(--brand);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(1px);}
.btn-accent{background:var(--accent);color:var(--dark);box-shadow:0 10px 26px rgba(216,243,91,.28);}
.btn-accent:hover{background:#e4fa80;color:var(--dark);transform:translateY(-2px);box-shadow:0 16px 34px rgba(216,243,91,.36);}
.btn-accent:active{transform:translateY(1px);filter:brightness(.96);}
.btn-sm{padding:9px 20px;font-size:14px;}
.btn-lg{padding:16px 40px;font-size:17px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand);
  border-bottom:1px dashed rgba(15,107,87,.4);padding-bottom:2px;
}
.text-link span{transition:transform .22s ease;}
.text-link:hover{color:var(--coral);border-bottom-color:rgba(255,106,69,.5);}
.text-link:hover span{transform:translateX(4px);}

/* ============ 徽章 ============ */
.badge-soft{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--soft);color:var(--brand);
  font-size:13px;font-weight:600;line-height:1.4;
}
.badge-soft::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 1px rgba(11,58,46,.22);}
.badge-solid{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(15,107,87,.10);color:var(--brand);
  font-size:13px;font-weight:600;line-height:1.4;
}
.float-badge{
  position:absolute;left:18px;bottom:18px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.94);
  box-shadow:0 8px 22px rgba(11,58,46,.18);
  font-size:13px;color:var(--text);font-weight:600;
}
.float-badge b{font-size:16px;color:var(--brand);font-variant-numeric:tabular-nums;}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);}
.site-header.scrolled{box-shadow:var(--shadow-1);}
.brand-row{height:64px;}
.brand-row-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.logo:hover{color:inherit;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;letter-spacing:.5px;flex:0 0 auto;
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.5px;color:var(--text);white-space:nowrap;}
.brand-actions{display:flex;align-items:center;gap:12px;}
.head-link{font-size:14px;font-weight:500;color:var(--muted);padding:6px 4px;}
.head-link:hover{color:var(--brand);}
.icon-btn{
  width:38px;height:38px;border-radius:999px;background:var(--soft);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.icon-btn:hover{background:rgba(15,107,87,.14);color:var(--brand);transform:translateY(-1px);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;background:var(--soft);align-items:center;justify-content:center;position:relative;}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--text);}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.channel-row{background:#fff;border-bottom:1px solid var(--line);height:52px;}
.channel-inner{display:flex;align-items:center;height:52px;}
.channel-nav{display:flex;align-items:center;gap:8px;overflow-x:auto;white-space:nowrap;width:100%;scrollbar-width:none;-ms-overflow-style:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-link{
  padding:8px 18px;border-radius:999px;font-size:15px;font-weight:500;
  color:var(--muted);transition:background .2s ease,color .2s ease;flex:0 0 auto;
}
.channel-link:hover{background:var(--soft);color:var(--brand);}
.channel-link.active{background:var(--grad);color:#fff;font-weight:600;box-shadow:0 4px 12px rgba(15,107,87,.18);}
.channel-link.active:hover{color:#fff;}

/* ============ 内页 Hero ============ */
.page-hero{position:relative;overflow:hidden;background:var(--dark);color:#fff;display:flex;align-items:center;min-height:268px;padding:64px 0 56px;}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.34;}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(11,58,46,.92) 0%,rgba(15,107,87,.80) 55%,rgba(47,163,127,.62) 100%);
}
.page-hero-inner{position:relative;z-index:2;width:100%;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px;flex-wrap:wrap;}
.crumbs a{color:rgba(255,255,255,.9);}
.crumbs a:hover{color:var(--accent);}
.crumbs .cur{color:#fff;font-weight:600;}
.page-hero h1{color:#fff;font-size:42px;}
.page-hero .hero-note{margin-top:16px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);max-width:60ch;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-chips span{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  font-size:13px;font-weight:500;color:#fff;backdrop-filter:blur(2px);
}
.hero-chips span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ============ 步骤流程 ============ */
.step-list{margin-top:8px;}
.step-item{
  display:flex;gap:20px;padding:26px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-1);margin-bottom:16px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step-item:last-child{margin-bottom:0;}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(15,107,87,.16);}
.step-num{
  flex:0 0 auto;width:60px;height:60px;border-radius:16px;
  background:rgba(15,107,87,.08);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:700;font-variant-numeric:tabular-nums;
}
.step-body h3{margin-bottom:8px;font-size:19px;}
.step-body p{font-size:15px;line-height:1.85;color:var(--muted);}
.step-body .step-tip{
  display:inline-flex;align-items:center;gap:8px;margin-top:12px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:rgba(216,243,91,.32);border-radius:999px;padding:4px 12px;
}

/* ============ 侧栏图卡 ============ */
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);overflow:hidden;position:sticky;top:140px;
}
.side-card-media{position:relative;aspect-ratio:16/10;background:linear-gradient(140deg,#0F6B57,#2FA37F 55%,#7BD6A8);}
.side-card-media img{width:100%;height:100%;object-fit:cover;}
.side-card-body{padding:26px 24px;}
.side-card-body h3{font-size:19px;margin-bottom:16px;}
.check-list li{
  position:relative;padding-left:26px;font-size:14.5px;line-height:1.8;
  color:var(--muted);margin-bottom:12px;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:12px;height:12px;border-radius:4px;
  background:rgba(15,107,87,.14);
  border:2px solid var(--brand-2);
}
.check-list li:last-child{margin-bottom:0;}
.side-card-body .text-link{margin-top:20px;}

/* ============ 功能卡片 ============ */
.feature-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 24px;height:100%;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(15,107,87,.16);}
.feature-icon{
  width:48px;height:48px;border-radius:14px;background:rgba(15,107,87,.08);
  display:flex;align-items:center;justify-content:center;color:var(--brand);margin-bottom:18px;
}
.feature-card h3{font-size:18px;margin-bottom:10px;}
.feature-card p{font-size:14.5px;line-height:1.85;color:var(--muted);}
.grid-margin-y{margin-top:-16px;}
.grid-margin-y > .cell{margin-top:16px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item.open{box-shadow:var(--shadow-1);border-color:rgba(15,107,87,.18);}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--brand);opacity:0;transition:opacity .24s ease;
}
.faq-item.open .faq-q::before{opacity:1;}
.faq-icon{position:relative;flex:0 0 auto;width:22px;height:22px;color:var(--brand);transition:transform .26s ease;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;}
.faq-icon::before{left:50%;top:0;bottom:0;width:2px;transform:translateX(-50%);}
.faq-icon::after{top:50%;left:0;right:0;height:2px;transform:translateY(-50%);}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease;}
.faq-a-inner{padding:0 24px 24px;font-size:15px;line-height:1.85;color:var(--muted);}
.faq-a-inner p{margin:0;}

/* ============ CTA ============ */
.cta-banner{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#0B3A2E 0%,#0F6B57 58%,#2FA37F 100%);
  border-radius:28px;padding:56px 32px;text-align:center;color:#fff;
  box-shadow:0 18px 44px rgba(11,58,46,.24);
}
.cta-banner h2{color:#fff;font-size:30px;margin-bottom:14px;}
.cta-banner p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.84);max-width:56ch;margin:0 auto 28px;}
.cta-banner .cta-note{font-size:13px;color:rgba(255,255,255,.62);margin:18px auto 0;}
.cta-deco{position:absolute;pointer-events:none;opacity:.14;}
.cta-deco-a{top:-40px;right:-30px;width:220px;height:220px;}
.cta-deco-b{bottom:-60px;left:-40px;width:200px;height:200px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding:72px 0 0;margin-top:0;}
.footer-grid{padding-bottom:16px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-mark{width:36px;height:36px;border-radius:11px;font-size:13px;}
.footer-brand .name{font-size:17px;font-weight:700;color:#fff;letter-spacing:.4px;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);max-width:38ch;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.3px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;line-height:2.1;color:rgba(255,255,255,.74);}
.footer-col ul li a:hover{color:var(--accent);}
.footer-contact li{font-size:14px;line-height:2.1;color:rgba(255,255,255,.74);}
.footer-contact li b{color:#fff;font-weight:600;margin-right:10px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:32px;padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.65);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:64px 0;}
  h1,.page-hero h1{font-size:34px;}
  h2{font-size:26px;}
  .side-card{position:static;margin-top:32px;}
  .nav-toggle{display:inline-flex;}
  .head-link{display:none;}
  .channel-row{
    position:fixed;top:64px;left:0;right:0;bottom:0;height:auto;
    background:#fff;border-bottom:none;box-shadow:-12px 0 34px rgba(11,58,46,.16);
    transform:translateX(103%);transition:transform .3s ease;
    overflow-y:auto;padding:8px 0 28px;z-index:55;
  }
  .channel-row.open{transform:translateX(0);}
  .channel-inner{display:block;padding:0 16px;height:auto;}
  .channel-nav{flex-direction:column;align-items:stretch;gap:0;overflow:visible;white-space:normal;width:100%;}
  .channel-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:14px 8px;border-radius:0;border-bottom:1px solid var(--line);
    font-size:16px;min-height:48px;width:100%;
  }
  .channel-link::after{content:"›";font-size:18px;color:var(--weak);}
  .channel-link:hover{background:transparent;color:var(--brand);}
  .channel-link.active{background:transparent;color:var(--brand);font-weight:700;box-shadow:none;}
  .channel-link.active::after{color:var(--brand);}
  body.nav-open{overflow:hidden;}
  .cta-banner{padding:44px 24px;}
  .cta-banner h2{font-size:24px;}
}
@media (max-width:767px){
  .page-hero{padding:48px 0 44px;min-height:0;}
  .page-hero h1{font-size:30px;}
  .page-hero .hero-note{font-size:15px;}
  .step-item{flex-direction:column;gap:14px;padding:22px 18px;}
  .step-num{width:52px;height:52px;font-size:18px;border-radius:14px;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a-inner{padding:0 18px 20px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .site-footer{padding-top:56px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  h1,.page-hero h1{font-size:27px;}
  h2{font-size:22px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .btn{width:100%;}
  .btn-sm{width:auto;padding:9px 16px;font-size:13px;}
  .brand-actions{gap:8px;}
  .logo-text{font-size:15px;}
  .logo-mark{width:34px;height:34px;border-radius:11px;font-size:12px;}
  .cta-banner{border-radius:20px;padding:36px 18px;}
  .cta-banner h2{font-size:21px;}
  .float-badge{left:12px;bottom:12px;padding:6px 12px;font-size:12px;}
}
@media (max-width:400px){
  .logo-text{font-size:13px;}
  .logo-mark{width:30px;height:30px;font-size:11px;}
  .btn-sm{padding:8px 12px;font-size:12px;}
}

/* roulang page: category4 */
:root{
  --brand:#0F6B57;
  --brand-light:#2FA37F;
  --brand-pale:#7BD6A8;
  --lime:#D8F35B;
  --coral:#FF6A45;
  --bg:#F6F7F2;
  --card:#FFFFFF;
  --soft:#EDF2EC;
  --dark:#0B3A2E;
  --ink:#16211C;
  --ink-2:#4A5A52;
  --ink-3:#7C8B84;
  --line:rgba(22,33,28,.08);
  --line-strong:rgba(22,33,28,.14);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-1:0 2px 8px rgba(15,107,87,.06);
  --shadow-2:0 14px 34px rgba(15,107,87,.14);
  --grad:linear-gradient(135deg,#0F6B57 0%,#2FA37F 60%,#7BD6A8 100%);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --gap-section:96px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
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{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;border-bottom:1px dashed rgba(15,107,87,.35);transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--coral);border-bottom-color:rgba(255,106,69,.5);}
a:focus-visible,button:focus-visible{outline:3px solid rgba(47,163,127,.35);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--ink);letter-spacing:.5px;}
p{margin:0 0 18px;max-width:68ch;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--gap-section) 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1.5px;color:var(--brand);
  background:var(--soft);border-radius:999px;padding:6px 16px;margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);}
.section-head h2{font-size:32px;line-height:1.3;margin-bottom:14px;}
.section-head p{color:var(--ink-2);font-size:16px;margin:0;}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(15,107,87,.10);}
.brand-row{height:64px;display:flex;align-items:center;}
.brand-row-inner{display:flex;align-items:center;justify-content:space-between;width:100%;height:64px;}
.logo{display:inline-flex;align-items:center;gap:12px;border-bottom:none;flex-shrink:0;}
.logo:hover{border-bottom:none;}
.logo-mark{
  width:40px;height:40px;border-radius:12px;background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:15px;font-weight:700;letter-spacing:.5px;flex-shrink:0;
  box-shadow:0 4px 12px rgba(15,107,87,.22);
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.5px;color:var(--ink);white-space:nowrap;}
.brand-actions{display:flex;align-items:center;gap:12px;}
.head-link{font-size:14px;color:var(--ink-2);border-bottom:none;padding:6px 2px;}
.head-link:hover{color:var(--brand);border-bottom:none;}
.icon-btn{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--line-strong);
  background:#fff;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(47,163,127,.5);background:var(--soft);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;font-size:16px;font-weight:600;
  border:1.5px solid transparent;cursor:pointer;text-decoration:none;border-bottom:none;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease;
}
.btn:hover{border-bottom:none;transform:translateY(-2px);}
.btn:active{transform:translateY(1px);filter:brightness(.94);}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 18px rgba(15,107,87,.20);}
.btn-primary:hover{box-shadow:0 14px 30px rgba(15,107,87,.26);filter:brightness(1.04);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:rgba(47,163,127,.08);}
.btn-sm{padding:9px 20px;font-size:14px;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line-strong);
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:16px;height:2px;background:var(--ink);border-radius:2px;transition:background .2s;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease;}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
.site-header.nav-open .nav-toggle span{background:transparent;}
.site-header.nav-open .nav-toggle span::before{transform:translateY(5px) rotate(45deg);}
.site-header.nav-open .nav-toggle span::after{transform:translateY(-5px) rotate(-45deg);}

.channel-row{background:#F9FAF6;border-top:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;height:52px;}
.channel-nav{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;width:100%;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;white-space:nowrap;
  padding:8px 18px;border-radius:999px;font-size:15px;font-weight:500;
  color:var(--ink-2);border-bottom:none;transition:all .2s ease;
}
.channel-link:hover{background:var(--soft);color:var(--brand);border-bottom:none;}
.channel-link.active{background:var(--grad);color:#fff;box-shadow:0 4px 12px rgba(15,107,87,.20);}
.channel-link.active:hover{color:#fff;}

/* ============ page hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(115deg,rgba(11,58,46,.94) 0%,rgba(15,107,87,.82) 55%,rgba(47,163,127,.66) 100%),
             url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:56px 0 52px;
}
.page-hero::after{
  content:"";position:absolute;right:-80px;top:-60px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(216,243,91,.18),rgba(216,243,91,0) 70%);
  pointer-events:none;
}
.crumbs{font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumbs a{color:rgba(255,255,255,.86);border-bottom:none;}
.crumbs a:hover{color:var(--lime);}
.crumbs span.sep{opacity:.5;}
.page-hero h1{font-size:44px;line-height:1.25;letter-spacing:.5px;color:#fff;margin-bottom:16px;}
.page-hero .hero-sub{font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);max-width:640px;margin:0;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;position:relative;z-index:2;}
.badge{
  display:inline-flex;align-items:center;gap:8px;border-radius:999px;
  padding:8px 16px;font-size:13px;font-weight:600;line-height:1.4;
}
.badge-light{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.22);}
.badge-light b{font-variant-numeric:tabular-nums;color:var(--lime);font-weight:700;}
.badge-soft{background:var(--soft);color:var(--brand);}
.badge-soft i{width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block;}

/* ============ principle strip ============ */
.principle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.principle{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 24px;box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease;
  position:relative;overflow:hidden;
}
.principle:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.principle .no{
  font-size:40px;font-weight:700;line-height:1;color:rgba(15,107,87,.14);
  font-variant-numeric:tabular-nums;margin-bottom:14px;letter-spacing:1px;
}
.principle h3{font-size:19px;line-height:1.45;margin-bottom:10px;}
.principle p{font-size:14px;line-height:1.75;color:var(--ink-2);margin:0;}
.principle .rule-line{position:absolute;left:0;top:0;width:4px;height:100%;background:var(--grad);opacity:.85;}

/* ============ split band ============ */
.split-band{
  display:grid;grid-template-columns:1.05fr 1fr;gap:0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.split-media{position:relative;min-height:340px;background:var(--soft);}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}
.split-media .float-badge{
  position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.94);
  border-radius:999px;padding:9px 18px;font-size:13px;font-weight:600;color:var(--ink);
  box-shadow:0 8px 22px rgba(11,58,46,.18);display:inline-flex;align-items:center;gap:8px;
}
.split-media .float-badge b{color:var(--brand);font-variant-numeric:tabular-nums;}
.split-body{padding:44px 40px;display:flex;flex-direction:column;justify-content:center;}
.split-body h2{font-size:28px;line-height:1.35;margin-bottom:14px;}
.split-body p{color:var(--ink-2);font-size:15px;margin-bottom:22px;}
.mini-list{display:grid;gap:12px;margin-bottom:26px;}
.mini-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-2);}
.mini-list li i{color:var(--brand-light);margin-top:5px;font-size:14px;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;border-bottom:none;color:var(--brand);}
.text-link .arrow{transition:transform .2s ease;}
.text-link:hover .arrow{transform:translateX(4px);}

/* ============ compare ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px 32px;box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.compare-head{display:flex;align-items:center;gap:14px;margin-bottom:22px;padding-bottom:20px;border-bottom:1px solid var(--line);}
.compare-icon{
  width:44px;height:44px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;flex-shrink:0;
}
.compare-card.safe .compare-icon{background:rgba(47,163,127,.12);color:var(--brand);}
.compare-card.alert .compare-icon{background:rgba(255,106,69,.12);color:var(--coral);}
.compare-head h3{font-size:21px;line-height:1.4;}
.compare-head .tagline{display:block;font-size:13px;font-weight:500;color:var(--ink-3);margin-top:4px;letter-spacing:0;}
.compare-list{display:grid;gap:16px;}
.compare-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;line-height:1.75;color:var(--ink-2);}
.compare-list li .dot{width:22px;height:22px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:11px;flex-shrink:0;margin-top:3px;}
.compare-card.safe .compare-list .dot{background:rgba(47,163,127,.14);color:var(--brand);}
.compare-card.alert .compare-list .dot{background:rgba(255,106,69,.14);color:var(--coral);}
.compare-list strong{color:var(--ink);font-weight:600;}

/* ============ steps ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 24px;box-shadow:var(--shadow-1);position:relative;
  transition:transform .22s ease,box-shadow .22s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.step-card .step-no{
  font-size:34px;font-weight:700;color:rgba(15,107,87,.16);line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:1px;margin-bottom:16px;
}
.step-card h3{font-size:18px;line-height:1.45;margin-bottom:10px;}
.step-card p{font-size:14px;line-height:1.75;color:var(--ink-2);margin:0;}
.step-card::after{
  content:"";position:absolute;right:-14px;top:50px;width:8px;height:2px;
  border-top:2px dashed rgba(15,107,87,.22);
}
.step-card:last-child::after{display:none;}

/* ============ terms ============ */
.terms-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:12px 34px;box-shadow:var(--shadow-1);}
.term{display:flex;gap:24px;padding:28px 0;border-bottom:1px dashed var(--line-strong);}
.term:last-child{border-bottom:none;}
.term-no{
  font-size:26px;font-weight:700;color:rgba(15,107,87,.20);line-height:1.2;
  font-variant-numeric:tabular-nums;min-width:52px;letter-spacing:1px;
}
.term-body h3{font-size:18px;line-height:1.5;margin-bottom:8px;}
.term-body p{font-size:15px;line-height:1.8;color:var(--ink-2);margin:0;max-width:760px;}

/* ============ faq ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;position:relative;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad);
  opacity:0;transition:opacity .22s ease;
}
.faq-item.open{box-shadow:var(--shadow-2);border-color:rgba(47,163,127,.28);}
.faq-item.open::before{opacity:1;}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;cursor:pointer;
  padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.55;
}
.faq-q .plus{
  position:relative;width:22px;height:22px;flex-shrink:0;border-radius:50%;
  background:var(--soft);display:inline-flex;align-items:center;justify-content:center;
  transition:transform .26s ease,background .26s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;transition:all .26s ease;
}
.faq-q .plus::before{width:11px;height:2px;}
.faq-q .plus::after{width:2px;height:11px;}
.faq-item.open .faq-q .plus{transform:rotate(45deg);background:rgba(47,163,127,.14);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease;}
.faq-a-inner{padding:0 26px 24px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:760px;}

/* ============ CTA ============ */
.cta-banner{
  position:relative;overflow:hidden;border-radius:28px;padding:56px 48px;text-align:center;
  background:linear-gradient(130deg,#0B3A2E 0%,#0F6B57 55%,#2FA37F 100%);color:#fff;
  box-shadow:0 22px 50px rgba(11,58,46,.22);
}
.cta-banner h2{font-size:28px;line-height:1.35;color:#fff;margin-bottom:14px;position:relative;z-index:2;}
.cta-banner p{color:rgba(255,255,255,.82);font-size:15px;max-width:640px;margin:0 auto 30px;position:relative;z-index:2;}
.cta-banner .btn{position:relative;z-index:2;}
.cta-banner .cta-note{font-size:13px;color:rgba(255,255,255,.62);margin:18px auto 0;position:relative;z-index:2;max-width:none;}
.cta-deco{position:absolute;inset:0;pointer-events:none;opacity:.16;z-index:1;}
.cta-deco span{position:absolute;border:1.5px solid #fff;border-radius:50%;}
.cta-deco span:nth-child(1){width:220px;height:220px;right:-60px;top:-70px;}
.cta-deco span:nth-child(2){width:140px;height:140px;left:-40px;bottom:-60px;}
.cta-deco span:nth-child(3){width:70px;height:70px;left:16%;top:22%;border-radius:14px;transform:rotate(18deg);}

/* ============ footer ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.76);padding:72px 0 0;margin-top:0;}
.footer-grid{padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .logo-mark{box-shadow:none;}
.footer-brand .name{font-size:17px;font-weight:700;color:#fff;letter-spacing:.5px;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:380px;margin:0;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:8px;}
.footer-col li{font-size:14px;line-height:2.1;}
.footer-col a{color:rgba(255,255,255,.72);border-bottom:none;}
.footer-col a:hover{color:var(--lime);border-bottom:none;}
.footer-contact li{color:rgba(255,255,255,.66);font-size:14px;}
.footer-contact b{color:rgba(255,255,255,.9);font-weight:600;margin-right:8px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;display:flex;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ responsive ============ */
@media (max-width:1023px){
  :root{--gap-section:64px;}
  .channel-row{display:none;border-top:1px solid var(--line);background:#fff;box-shadow:0 18px 34px rgba(11,58,46,.12);}
  .site-header.nav-open .channel-row{display:block;}
  .channel-inner{height:auto;padding:10px 20px 18px;}
  .channel-nav{flex-direction:column;align-items:stretch;gap:4px;overflow:visible;}
  .channel-link{height:48px;padding:0 18px;border-radius:12px;justify-content:space-between;font-size:15px;}
  .channel-link::after{content:"›";opacity:.35;font-size:18px;line-height:1;}
  .channel-link.active::after{opacity:.85;color:#fff;}
  .nav-toggle{display:inline-flex;}
  .head-link{display:none;}
  .page-hero h1{font-size:34px;}
  .principle-grid{grid-template-columns:1fr;}
  .split-band{grid-template-columns:1fr;}
  .split-body{padding:34px 26px;}
  .compare-grid{grid-template-columns:1fr;}
  .step-grid{grid-template-columns:1fr 1fr;}
  .step-card::after{display:none;}
  .cta-banner{padding:44px 28px;}
  .cta-banner h2{font-size:24px;}
}
@media (max-width:639px){
  :root{--gap-section:48px;}
  .container{padding:0 16px;}
  .logo-text{font-size:15px;}
  .logo-mark{width:36px;height:36px;border-radius:10px;font-size:13px;}
  .brand-actions{gap:8px;}
  .btn-sm{padding:8px 16px;font-size:13px;}
  .page-hero{padding:40px 0 40px;}
  .page-hero h1{font-size:30px;}
  .page-hero .hero-sub{font-size:15px;}
  .section-head h2{font-size:24px;}
  .split-body h2{font-size:23px;}
  .compare-card{padding:26px 20px;}
  .compare-head h3{font-size:19px;}
  .step-grid{grid-template-columns:1fr;}
  .terms-wrap{padding:8px 20px;}
  .term{gap:14px;}
  .term-no{font-size:22px;min-width:40px;}
  .faq-q{padding:18px 18px;font-size:16px;}
  .faq-a-inner{padding:0 18px 20px;}
  .btn{width:100%;}
  .brand-actions .btn-sm{width:auto;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category5 */
:root{
  --brand:#0F6B57;
  --brand-2:#2FA37F;
  --brand-3:#7BD6A8;
  --brand-grad:linear-gradient(135deg,#0F6B57 0%,#2FA37F 60%,#7BD6A8 100%);
  --lime:#D8F35B;
  --coral:#FF6A45;
  --bg:#F6F7F2;
  --card:#FFFFFF;
  --soft:#EDF2EC;
  --dark:#0B3A2E;
  --text:#16211C;
  --text-2:#4A5A52;
  --text-3:#7C8B84;
  --line:rgba(22,33,28,.08);
  --line-strong:rgba(22,33,28,.14);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 2px 8px rgba(15,107,87,.06);
  --sh-2:0 14px 34px rgba(15,107,87,.14);
  --container:1200px;
  --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","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--coral);}
button{font-family:inherit;}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
h1,h2,h3,h4{color:var(--text);letter-spacing:.4px;}
h1{font-size:44px;line-height:1.25;font-weight:700;}
h2{font-size:32px;line-height:1.3;font-weight:700;}
h3{font-size:22px;line-height:1.45;font-weight:600;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{color:var(--text-2);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.sec{padding:var(--sec-y) 0;}
.sec-soft{background:var(--soft);}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;font-size:16px;font-weight:600;line-height:1;
  border:none;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,filter .22s ease;
  text-align:center;
}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 6px 18px rgba(15,107,87,.22);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 34px rgba(15,107,87,.28);filter:brightness(1.04);}
.btn-primary:active{transform:translateY(1px);filter:brightness(.94);}
.btn-ghost{background:transparent;border:1.5px solid var(--brand);color:var(--brand);}
.btn-ghost:hover{color:var(--brand);background:rgba(15,107,87,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:9px 20px;font-size:14px;}
.btn-lg{padding:17px 40px;font-size:17px;}
:focus-visible{outline:3px solid rgba(47,163,127,.35);outline-offset:2px;}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600;border-bottom:1px dashed rgba(15,107,87,.4);padding-bottom:2px;}
.text-link svg{transition:transform .22s ease;}
.text-link:hover{color:var(--coral);border-color:rgba(255,106,69,.5);}
.text-link:hover svg{transform:translateX(4px);}

/* ===== 徽章 ===== */
.badge{display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;line-height:1.4;}
.badge-soft{background:var(--soft);color:var(--brand);}
.badge-soft::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(216,243,91,.28);}
.badge-line{background:#fff;border:1px solid var(--line-strong);color:var(--text-2);}
.badge-float{background:rgba(255,255,255,.94);color:var(--text);box-shadow:0 8px 22px rgba(11,58,46,.14);}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:120;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .24s ease;}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(11,58,46,.10);}
.brand-row{background:#fff;}
.brand-row-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo:hover{color:var(--text);}
.logo-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--brand-grad);
  color:#fff;font-size:14px;font-weight:800;letter-spacing:.6px;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(15,107,87,.28);
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.5px;color:var(--text);white-space:nowrap;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.head-link{font-size:14px;color:var(--text-2);padding:6px 4px;font-weight:500;}
.head-link:hover{color:var(--brand);}
.icon-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line-strong);background:#fff;color:var(--text-2);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(15,107,87,.35);background:rgba(15,107,87,.06);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .24s ease,opacity .2s ease;
}
.nav-toggle span::before{position:absolute;top:14px;}
.nav-toggle span::after{position:absolute;bottom:14px;}
.nav-toggle span{position:relative;}
.channel-row{background:#FBFCF8;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;height:52px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-nav{display:flex;flex-wrap:nowrap;gap:8px;}
.channel-link{
  display:inline-flex;align-items:center;padding:8px 18px;border-radius:999px;
  font-size:14.5px;font-weight:500;color:var(--text-2);white-space:nowrap;transition:all .2s ease;
}
.channel-link:hover{background:var(--soft);color:var(--brand);}
.channel-link.active{background:var(--brand-grad);color:#fff;font-weight:600;box-shadow:0 6px 16px rgba(15,107,87,.20);}
.channel-link.active:hover{color:#fff;}
.nav-overlay{display:none;position:fixed;inset:0;background:rgba(11,58,46,.42);z-index:190;opacity:0;transition:opacity .26s ease;}
.nav-overlay.is-open{display:block;opacity:1;}

/* ===== 分类页 Hero ===== */
.cat-hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#E9F1EA 0%,#F6F7F2 55%,#E3EEE7 100%);padding:58px 0 62px;}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;opacity:.13;
}
.cat-hero::after{
  content:"";position:absolute;right:-90px;top:-70px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,163,127,.24),rgba(47,163,127,0) 70%);
}
.cat-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{opacity:.5;}
.crumb .now{color:var(--brand);font-weight:600;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.85);border:1px solid var(--line-strong);
  border-radius:999px;padding:6px 16px;font-size:13px;font-weight:600;color:var(--brand);margin-bottom:18px;
  box-shadow:var(--sh-1);
}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(216,243,91,.35);}
.cat-hero h1{font-size:52px;line-height:1.15;letter-spacing:1px;margin-bottom:16px;}
.cat-hero h1 em{font-style:normal;background:linear-gradient(180deg,transparent 66%,rgba(216,243,91,.62) 66%);padding:0 4px;}
.cat-hero .lead{max-width:720px;font-size:17px;line-height:1.85;color:var(--text-2);}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-meta .chip{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:9px 18px;font-size:13.5px;font-weight:600;color:var(--text-2);box-shadow:var(--sh-1);
}
.hero-meta .chip b{color:var(--brand);font-size:15px;}

/* ===== 板块标题 ===== */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:40px;}
.sec-head .t h2{position:relative;padding-left:16px;}
.sec-head .t h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:4px;background:var(--brand-grad);}
.sec-head .t p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:640px;}

/* ===== 话题标签行 ===== */
.topic-bar{display:flex;flex-wrap:wrap;gap:10px;}
.topic-pill{
  display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:999px;background:#fff;
  border:1px solid var(--line-strong);font-size:14px;font-weight:600;color:var(--text-2);transition:all .2s ease;
}
.topic-pill span{font-size:12px;color:var(--text-3);font-weight:600;}
.topic-pill:hover{color:var(--brand);border-color:rgba(15,107,87,.34);background:rgba(15,107,87,.05);transform:translateY(-2px);}

/* ===== FAQ 手风琴 ===== */
.faq-groups{margin-top:8px;}
.faq-group{margin-bottom:34px;}
.faq-group:last-child{margin-bottom:0;}
.group-title{display:flex;align-items:center;gap:12px;font-size:16px;font-weight:700;color:var(--brand);margin-bottom:16px;letter-spacing:.4px;}
.group-title span{
  display:inline-flex;align-items:center;justify-content:center;min-width:30px;height:30px;border-radius:10px;
  background:rgba(15,107,87,.10);color:var(--brand);font-size:13px;font-weight:800;
}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:12px;
  overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item:hover{box-shadow:var(--sh-1);border-color:rgba(15,107,87,.16);}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
  opacity:0;transition:opacity .24s ease;
}
.faq-item.is-open{box-shadow:var(--sh-2);border-color:rgba(15,107,87,.20);}
.faq-item.is-open::before{opacity:1;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;line-height:1.5;color:var(--text);letter-spacing:.2px;
}
.faq-q:hover{color:var(--brand);}
.faq-ic{
  position:relative;flex:0 0 24px;width:24px;height:24px;border-radius:50%;background:var(--soft);
  transition:transform .28s ease,background .24s ease;
}
.faq-ic::before,.faq-ic::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-ic::before{width:11px;height:2px;}
.faq-ic::after{width:2px;height:11px;transition:opacity .24s ease;}
.faq-item.is-open .faq-ic{transform:rotate(45deg);background:rgba(216,243,91,.55);}
.faq-item.is-open .faq-ic::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-2);}
.faq-a-inner p{color:var(--text-2);font-size:15px;line-height:1.85;}
.faq-a-inner p + p{margin-top:10px;}

/* ===== 检查清单 ===== */
.check-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line-strong);}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list .mark{
  flex:0 0 26px;width:26px;height:26px;border-radius:9px;background:rgba(15,107,87,.10);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand);font-size:13px;font-weight:800;margin-top:3px;
}
.check-list h4{font-size:16px;margin-bottom:4px;color:var(--text);}
.check-list p{font-size:14.5px;line-height:1.75;color:var(--text-2);margin:0;}

/* ===== 图文块 ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.figure-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--soft);
  box-shadow:var(--sh-2);border:1px solid var(--line);
}
.figure-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.figure-card .fig-cap{
  position:absolute;left:18px;bottom:18px;right:18px;background:rgba(255,255,255,.94);
  border-radius:14px;padding:14px 18px;font-size:13.5px;line-height:1.6;color:var(--text-2);
  box-shadow:0 8px 22px rgba(11,58,46,.12);
}
.figure-card .fig-cap b{display:block;color:var(--brand);font-size:14px;margin-bottom:2px;}

/* ===== 流程时间线 ===== */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative;margin-top:8px;}
.flow::before{
  content:"";position:absolute;left:6%;right:6%;top:38px;height:0;border-top:2px dashed rgba(15,107,87,.22);
}
.flow-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:26px 22px;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease;}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.flow-num{
  font-size:34px;font-weight:800;line-height:1;color:rgba(15,107,87,.16);letter-spacing:1px;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.flow-item h4{font-size:16px;margin-bottom:8px;}
.flow-item p{font-size:14px;line-height:1.75;color:var(--text-2);}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;background:linear-gradient(135deg,#0B3A2E 0%,#0F6B57 62%,#2FA37F 100%);
  padding:56px 40px;text-align:center;box-shadow:0 22px 54px rgba(11,58,46,.24);
}
.cta-band::before{
  content:"";position:absolute;width:320px;height:320px;border-radius:50%;border:1px solid rgba(255,255,255,.14);
  right:-90px;top:-110px;
}
.cta-band::after{
  content:"";position:absolute;width:200px;height:200px;border-radius:50%;border:1px solid rgba(255,255,255,.10);
  left:-70px;bottom:-90px;
}
.cta-band h2{color:#fff;font-size:30px;line-height:1.35;margin-bottom:14px;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;max-width:640px;margin:0 auto 28px;position:relative;z-index:2;}
.cta-band .btn{position:relative;z-index:2;background:#fff;color:var(--dark);box-shadow:0 12px 30px rgba(0,0,0,.18);}
.cta-band .btn:hover{transform:translateY(-2px);color:var(--dark);box-shadow:0 18px 40px rgba(0,0,0,.24);}
.cta-note{margin-top:18px;font-size:12.5px;color:rgba(255,255,255,.55);position:relative;z-index:2;}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:rgba(255,255,255,.78);padding:72px 0 28px;margin-top:0;}
.footer-grid{padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.10);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-mark{box-shadow:none;}
.footer-brand .name{font-size:17px;font-weight:700;color:#fff;letter-spacing:.5px;}
.footer-desc{font-size:14px;line-height:2;color:rgba(255,255,255,.62);max-width:420px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:2px;}
.footer-col ul li a{font-size:14px;line-height:2.1;color:rgba(255,255,255,.66);}
.footer-col ul li a:hover{color:var(--lime);}
.footer-contact li{font-size:14px;line-height:2;color:rgba(255,255,255,.62);}
.footer-contact li b{display:inline-block;min-width:72px;color:#fff;font-weight:600;margin-right:8px;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:22px;font-size:13px;color:rgba(255,255,255,.55);}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  :root{--sec-y:64px;}
  h1{font-size:34px;}
  h2{font-size:26px;}
  h3{font-size:20px;}
  .cat-hero{padding:44px 0 48px;}
  .cat-hero h1{font-size:38px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow::before{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-row{
    position:fixed;top:0;right:0;width:300px;max-width:86vw;height:100vh;height:100dvh;
    background:#fff;border-left:1px solid var(--line);border-top:0;
    transform:translateX(102%);transition:transform .28s ease;
    z-index:200;padding:78px 20px 30px;overflow-y:auto;box-shadow:-16px 0 44px rgba(11,58,46,.16);
  }
  .channel-row.is-open{transform:translateX(0);}
  .channel-inner{height:auto;display:block;overflow:visible;padding:0;}
  .channel-nav{flex-direction:column;gap:0;}
  .channel-link{
    display:flex;justify-content:space-between;align-items:center;height:48px;padding:0 6px;
    border-radius:0;border-bottom:1px solid var(--line);font-size:15px;
  }
  .channel-link::after{content:"›";font-size:18px;color:var(--text-3);line-height:1;}
  .channel-link.active{background:none;color:var(--brand);font-weight:700;box-shadow:none;}
  .channel-link.active::after{color:var(--brand);}
  .head-link{display:none;}
  .footer-col{margin-top:28px;}
}
@media (max-width:767px){
  :root{--sec-y:48px;}
  .container{padding:0 16px;}
  h1{font-size:28px;}
  h2{font-size:23px;}
  .cat-hero h1{font-size:32px;letter-spacing:.6px;}
  .cat-hero .lead{font-size:15.5px;}
  .btn{width:100%;}
  .brand-actions .btn-sm{width:auto;}
  .flow{grid-template-columns:1fr;}
  .faq-q{font-size:15.5px;padding:18px 18px;}
  .faq-a-inner{padding:0 18px 18px;}
  .cta-band{padding:40px 22px;border-radius:22px;}
  .cta-band h2{font-size:22px;}
  .sec-head{margin-bottom:26px;}
  .sec-head .t h2{padding-left:13px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:519px){
  .logo-text{font-size:15px;max-width:150px;overflow:hidden;text-overflow:ellipsis;}
  .logo-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:13px;}
  .topic-pill{padding:8px 15px;font-size:13px;}
  .hero-meta .chip{padding:8px 14px;font-size:12.5px;}
}