/* roulang page: index */
:root{
  --brand-500:#0E7C6B;
  --brand-600:#0A6357;
  --brand-300:#7FC9BC;
  --brand-050:#F0F7F4;
  --accent-500:#E8873A;
  --accent-600:#D0742B;
  --accent-ink:#2A3C6B;
  --ink:#12231F;
  --ink-2:#4A5A56;
  --ink-3:#7C8A86;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --line:#E7E2D9;
  --grad:linear-gradient(120deg,#0E7C6B 0%,#12907C 45%,#0F6E8C 100%);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(18,35,31,.06);
  --sh-2:0 16px 40px rgba(18,35,31,.12);
  --sh-badge:0 4px 14px rgba(14,124,107,.18);
  --sh-mega:0 24px 60px rgba(18,35,31,.14);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  padding-bottom:76px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.3px;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-600)}
img{max-width:100%;height:auto;display:block}
button{font:inherit;border:0;background:none;cursor:pointer}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container{max-width:1200px;width:100%;margin:0 auto;padding-left:24px;padding-right:24px}

/* ============ 通用区块 ============ */
.section{padding:80px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:1px;color:var(--brand-500);background:var(--brand-050);border:1px solid var(--brand-300);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px}
.section-head h2{font-size:30px}
.section-head .sub{margin-top:10px;color:var(--ink-2);font-size:15px;max-width:640px}
.link-more{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand-500);white-space:nowrap}
.link-more i{transition:transform .22s ease;font-size:13px}
.link-more:hover i{transform:translateX(3px)}
.link-more:hover{text-decoration:underline}

/* ============ 按钮 ============ */
.btn-main,.btn-line,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 26px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-main{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(14,124,107,.24)}
.btn-main:hover{color:#fff;filter:brightness(1.06);box-shadow:0 16px 34px rgba(14,124,107,.32);transform:scale(1.02)}
.btn-main:active{transform:translateY(1px) scale(1)}
.btn-line{background:#fff;color:var(--brand-500);border:1px solid var(--brand-300)}
.btn-line:hover{background:var(--brand-050);border-color:var(--brand-500);color:var(--brand-600);transform:translateY(-2px)}
.btn-line:active{transform:translateY(1px)}
.btn-accent{background:var(--accent-500);color:#fff;box-shadow:0 10px 22px rgba(232,135,58,.28)}
.btn-accent:hover{background:var(--accent-600);color:#fff;transform:scale(1.02);box-shadow:0 16px 30px rgba(232,135,58,.34)}
.btn-accent:active{transform:translateY(1px) scale(1)}
.btn-main[disabled],.btn-line[disabled],.btn-accent[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(18,35,31,.08)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;box-shadow:var(--sh-badge)}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px}
.brand-text:hover{color:var(--brand-500)}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:10px}
.nav-link{position:relative;display:inline-block;padding:10px 14px;font-size:15px;font-weight:600;color:var(--ink-2);border-radius:10px;transition:color .2s,background .2s}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
.nav-link:hover{color:var(--brand-500);background:var(--brand-050)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-500)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:14px}

.mega{position:relative}
.mega-toggle{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;font-size:15px;font-weight:600;color:var(--ink-2);background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);transition:.2s}
.mega-toggle:hover{border-color:var(--brand-300);color:var(--brand-500);background:var(--brand-050)}
.mega-toggle i{font-size:12px;transition:transform .2s}
.mega.is-open .mega-toggle i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:700px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-mega);padding:24px;
  display:grid;grid-template-columns:1.05fr 1.3fr 1fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(4px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:14px;color:var(--ink);margin-bottom:12px;letter-spacing:.5px}
.mega-col h4 span{display:block;width:26px;height:3px;border-radius:2px;background:var(--grad);margin-top:8px}
.mega-list li{margin-bottom:4px}
.mega-list a{display:block;padding:6px 0;font-size:14px;color:var(--ink-2)}
.mega-list a:hover{color:var(--brand-500);padding-left:4px}
.mega-post{display:block;padding:9px 0;border-bottom:1px dashed var(--line)}
.mega-post:last-child{border-bottom:0}
.mega-post b{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5}
.mega-post b:hover{color:var(--brand-500)}
.mega-post span{font-size:12px;color:var(--ink-3)}
.mega-card{background:var(--grad);border-radius:var(--r-md);padding:18px;color:#fff}
.mega-card p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.86)}
.mega-card b{display:block;font-size:16px;margin-bottom:8px;color:#fff}
.mega-card a{display:inline-flex;align-items:center;gap:6px;margin-top:14px;background:#fff;color:var(--brand-600);font-size:13px;font-weight:600;padding:8px 16px;border-radius:var(--r-pill)}
.mega-card a:hover{background:var(--brand-050)}

.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;color:var(--ink);align-items:center;justify-content:center;font-size:16px;transition:.2s}
.burger:hover{border-color:var(--brand-300);color:var(--brand-500);background:var(--brand-050)}

.m-nav{position:fixed;top:68px;left:14px;right:14px;z-index:1040;background:#fff;border-radius:24px;box-shadow:var(--sh-mega);padding:14px;opacity:0;visibility:hidden;transform:translateY(-12px);transition:.24s ease;max-height:calc(100vh - 100px);overflow:auto}
.m-nav.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.m-nav a{display:block;padding:13px 16px;border-radius:14px;font-size:15px;font-weight:600;color:var(--ink-2)}
.m-nav a:hover,.m-nav a.is-active{background:var(--brand-050);color:var(--brand-500)}
.mask{position:fixed;inset:0;background:rgba(18,35,31,.32);opacity:0;visibility:hidden;transition:.24s;z-index:1035}
.mask.is-open{opacity:1;visibility:visible}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:72px 0 88px;background:#fff}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center right;opacity:.16}
.hero-veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(250,247,242,.98) 0%,rgba(250,247,242,.92) 42%,rgba(250,247,242,.55) 100%)}
.hero-grid{position:absolute;inset:0;opacity:.05;background-image:repeating-linear-gradient(90deg,var(--ink) 0 1px,transparent 1px 46px),repeating-linear-gradient(0deg,var(--ink) 0 1px,transparent 1px 46px)}
.hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center}
.hero-copy{max-width:620px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--brand-300);color:var(--brand-600);font-size:13px;font-weight:600;border-radius:var(--r-pill);padding:6px 16px;box-shadow:var(--sh-1)}
.hero-eyebrow i{font-size:12px}
.hero h1{margin:22px 0 18px;font-size:42px;line-height:1.25;letter-spacing:.5px}
.hero h1 em{font-style:normal;color:var(--brand-500)}
.hero-sub{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px}
.hero-points li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2)}
.hero-points i{color:var(--brand-500);font-size:13px}

.hero-badges{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-content:center}
.stat-badge{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.stat-badge:nth-child(2){transform:translateY(16px)}
.stat-badge:nth-child(2):hover{transform:translateY(12px)}
.stat-badge:hover{border-color:var(--brand-300);box-shadow:var(--sh-2)}
.stat-num{display:block;font-size:30px;font-weight:700;color:var(--brand-500);line-height:1.15;font-variant-numeric:tabular-nums}
.stat-lab{display:block;font-size:13px;color:var(--ink-2);margin-top:6px}

/* ============ 卖点非对称栅格 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.feature-large{grid-column:span 6;position:relative;border-radius:var(--r-xl);overflow:hidden;background:var(--grad);color:#fff;display:flex;flex-direction:column;justify-content:flex-end;min-height:380px;padding:32px;box-shadow:var(--sh-1);transition:transform .28s ease,box-shadow .28s ease}
.feature-large img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.34;mix-blend-mode:luminosity}
.feature-large::after{content:"";position:absolute;left:0;right:0;bottom:0;height:70%;background:linear-gradient(180deg,rgba(10,99,87,0) 0%,rgba(10,99,87,.85) 100%)}
.feature-large>*{position:relative;z-index:2}
.feature-large h3{font-size:24px;color:#fff;margin-bottom:12px}
.feature-large p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.9);max-width:420px}
.feature-large:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.feature-tag{display:inline-flex;align-items:center;gap:7px;align-self:flex-start;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.4);color:#fff;font-size:12px;font-weight:600;border-radius:var(--r-pill);padding:5px 14px;margin-bottom:18px}
.feature-small{grid-column:span 3;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:28px;display:flex;flex-direction:column;gap:12px;box-shadow:var(--sh-1);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.feature-small:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-300)}
.feature-icon{width:48px;height:48px;border-radius:14px;background:var(--brand-050);color:var(--brand-500);display:flex;align-items:center;justify-content:center;font-size:19px;border:1px solid var(--brand-300)}
.feature-small h3{font-size:19px;margin-top:6px}
.feature-small p{font-size:14px;color:var(--ink-2);line-height:1.8}
.feature-small .lnk{margin-top:auto;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:7px}
.feature-small .lnk i{font-size:12px;transition:transform .22s}
.feature-small:hover .lnk i{transform:translateX(3px)}

/* ============ 流程 ============ */
.flow-wrap{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:52px;align-items:center}
.flow-media{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-2)}
.flow-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.flow-media .float-card{position:absolute;left:22px;bottom:22px;background:#fff;border-radius:var(--r-md);padding:14px 18px;box-shadow:var(--sh-2);display:flex;align-items:center;gap:12px}
.flow-media .float-card i{width:38px;height:38px;border-radius:12px;background:var(--brand-050);color:var(--brand-500);display:flex;align-items:center;justify-content:center}
.flow-media .float-card b{display:block;font-size:15px;color:var(--ink)}
.flow-media .float-card span{display:block;font-size:12px;color:var(--ink-3)}
.timeline{position:relative;padding-left:8px}
.timeline li{position:relative;padding:0 0 26px 62px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:19px;top:44px;bottom:0;width:2px;background:linear-gradient(180deg,var(--brand-300),transparent)}
.timeline li:last-child::before{display:none}
.step-no{position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;background:#fff;border:2px solid var(--brand-300);color:var(--brand-500);font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-badge);font-variant-numeric:tabular-nums}
.timeline h3{font-size:19px;margin-bottom:6px}
.timeline p{font-size:14px;color:var(--ink-2)}

/* ============ 社会认同 ============ */
.trust-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-bottom:48px}
.trust-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 24px;box-shadow:var(--sh-1);transition:transform .25s,box-shadow .25s,border-color .25s}
.trust-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-300)}
.trust-item b{display:block;font-size:28px;font-weight:700;color:var(--brand-500);line-height:1.2;font-variant-numeric:tabular-nums}
.trust-item span{display:block;font-size:13px;color:var(--ink-2);margin-top:6px}

.logo-wall{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px;margin-bottom:48px}
.logo-cell{height:64px;border:1px solid var(--line);border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;background:#fff;color:var(--ink-3);font-size:14px;font-weight:600;letter-spacing:.5px;filter:grayscale(1);opacity:.72;transition:.25s}
.logo-cell:hover{filter:grayscale(0);opacity:1;color:var(--brand-500);border-color:var(--brand-300);box-shadow:var(--sh-1)}

.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:16px;transition:transform .25s,box-shadow .25s,border-color .25s}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-300)}
.quote-card i.fa-quote-left{color:var(--brand-300);font-size:20px}
.quote-card p{font-size:15px;color:var(--ink-2);line-height:1.85;flex:1}
.quote-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);border-top:1px dashed var(--line);padding-top:14px}
.quote-meta .dot{width:8px;height:8px;border-radius:50%;background:var(--accent-500)}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;height:100%;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-300)}
.news-thumb{display:block;overflow:hidden;position:relative}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.pill{display:inline-flex;align-items:center;gap:6px;align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand-600);background:var(--brand-050);border:1px solid var(--brand-300);border-radius:var(--r-pill);padding:4px 12px}
.news-body h3{font-size:18px;line-height:1.5}
.news-body h3 a{color:var(--ink)}
.news-body h3 a:hover{color:var(--brand-500)}
.news-body p{font-size:14px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line);padding-top:14px}
.news-foot .arrow{width:30px;height:30px;border-radius:50%;background:var(--brand-050);color:var(--brand-500);display:flex;align-items:center;justify-content:center;font-size:12px;transition:.25s}
.news-card:hover .news-foot .arrow{background:var(--brand-500);color:#fff;transform:translateX(3px)}
.empty-state{grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);padding:56px 24px;text-align:center;color:var(--ink-2)}
.empty-state i{font-size:28px;color:var(--brand-300);display:block;margin-bottom:14px}
.empty-state p{font-size:14px;margin-bottom:16px}

/* ============ FAQ ============ */
.faq-box{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;padding:22px 26px;font-size:16px;font-weight:600;color:var(--ink);transition:background .2s,color .2s}
.faq-q:hover{background:var(--brand-050);color:var(--brand-500)}
.faq-item.is-open .faq-q{color:var(--brand-500)}
.faq-icon{position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:50%;border:1px solid var(--brand-300);transition:.25s}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-500);border-radius:2px;transition:.25s}
.faq-icon::before{left:6px;right:6px;top:10px;height:2px}
.faq-icon::after{top:6px;bottom:6px;left:10px;width:2px}
.faq-item.is-open .faq-icon{background:var(--brand-500);border-color:var(--brand-500);transform:rotate(90deg)}
.faq-item.is-open .faq-icon::before{background:#fff}
.faq-item.is-open .faq-icon::after{display:none}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 26px 24px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* ============ CTA 大卡 ============ */
.cta-card{position:relative;overflow:hidden;border-radius:var(--r-xl);background:var(--grad);color:#fff;padding:56px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:36px;align-items:center;box-shadow:var(--sh-2)}
.cta-card::before{content:"";position:absolute;inset:0;opacity:.06;background-image:repeating-linear-gradient(45deg,#fff 0 1px,transparent 1px 22px)}
.cta-card>*{position:relative;z-index:2}
.cta-card h2{color:#fff;font-size:30px;margin-bottom:14px}
.cta-card p{font-size:15px;color:rgba(255,255,255,.9);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-actions .btn-plain{background:#fff;color:var(--brand-600);display:inline-flex;align-items:center;gap:9px;padding:12px 26px;border-radius:var(--r-pill);font-size:15px;font-weight:600;transition:.2s}
.cta-actions .btn-plain:hover{background:var(--brand-050);transform:scale(1.02)}
.cta-actions .btn-ghost{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.55);color:#fff;display:inline-flex;align-items:center;gap:9px;padding:12px 26px;border-radius:var(--r-pill);font-size:15px;font-weight:600;transition:.2s}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:#0C1F1B;color:rgba(255,255,255,.72);margin-top:0;padding-top:4px}
.footer-bar{height:4px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;padding:56px 0 40px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66)}
.site-footer .brand-text{color:#fff}
.site-footer .brand-text:hover{color:#fff}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7)}
.footer-links a:hover{color:#fff;padding-left:3px}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:rgba(255,255,255,.72)}
.footer-contact i{color:var(--brand-300);margin-top:5px;font-size:13px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between}

/* ============ 底部固定转化条 ============ */
.dock-bar{position:fixed;left:0;right:0;bottom:0;z-index:1020;background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(18,35,31,.08);transform:translateY(110%);transition:transform .3s ease}
.dock-bar.is-visible{transform:translateY(0)}
.dock-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding-top:6px;padding-bottom:6px}
.dock-inner p{font-size:14px;color:var(--ink-2)}
.dock-inner p b{color:var(--ink)}
.dock-inner .btn-accent{padding:9px 22px;font-size:14px}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .main-nav{margin-left:0;gap:0}
  .nav-link{padding:10px 10px;font-size:14px}
  .hero h1{font-size:36px}
  .hero-inner{gap:36px}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .logo-wall{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:991px){
  .main-nav{display:none}
  .mega{display:none}
  .burger{display:inline-flex}
  .header-inner{height:60px;gap:12px}
  .site-header .btn-main{display:none}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .section-head h2{font-size:25px}
  .hero{padding:48px 0 56px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-copy{max-width:none}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .feature-large{grid-column:span 12;min-height:320px}
  .feature-small{grid-column:span 6}
  .flow-wrap{grid-template-columns:1fr;gap:32px}
  .trust-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quote-grid{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr;padding:36px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));padding:44px 0 32px}
}
@media (max-width:767px){
  .container{padding-left:18px;padding-right:18px}
  .news-grid{grid-template-columns:1fr}
  .feature-small{grid-column:span 12}
  .hero-badges{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .stat-badge:nth-child(2){transform:none}
  .stat-badge:nth-child(2):hover{transform:translateY(-4px)}
  .timeline li{padding-left:54px}
  .dock-inner{min-height:54px}
  .dock-inner p{font-size:13px;line-height:1.5}
  .dock-inner p .hide-sm{display:none}
  .faq-q{padding:18px 18px;font-size:15px}
  .faq-a-inner{padding:0 18px 20px;font-size:14px}
  .cta-card h2{font-size:24px}
}
@media (max-width:520px){
  .hero h1{font-size:26px}
  .hero-actions .btn-main,.hero-actions .btn-line{width:100%}
  .trust-strip{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr}
  .brand-text{font-size:15px}
}

/* roulang page: article */
:root{
  --brand-500:#0E7C6B;
  --brand-600:#0A6357;
  --brand-300:#7FC9BC;
  --accent-500:#E8873A;
  --accent-ink:#2A3C6B;
  --ink:#12231F;
  --ink-2:#4A5A56;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --line:#E7E2D9;
  --grad:linear-gradient(120deg,#0E7C6B 0%,#12907C 45%,#0F6E8C 100%);
  --shadow-sm:0 8px 24px rgba(18,35,31,.06);
  --shadow-lg:0 16px 40px rgba(18,35,31,.12);
  --shadow-badge:0 4px 14px rgba(14,124,107,.18);
  --r-card:20px;
  --r-lg:28px;
  --r-img:16px;
  --r-input:12px;
  --edge:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-500);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{font-weight:700;letter-spacing:.2px;color:var(--ink);margin:0;}
p{margin:0 0 1.2em;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--edge);}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(18,35,31,.08);}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--grad);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;
  box-shadow:var(--shadow-badge);
}
.brand-text{font-size:17px;letter-spacing:.3px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin:0 auto;}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:12px;
  font-size:15px;font-weight:600;color:var(--ink-2);white-space:nowrap;
}
.nav-link:hover{color:var(--brand-600);background:#F0F7F4;}
.nav-link.is-active{color:var(--brand-600);}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--grad);
}
.header-right{display:flex;align-items:center;gap:12px;}
.mega{position:relative;}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);font-size:14px;font-weight:600;
  cursor:pointer;transition:all .2s ease;
}
.mega-toggle:hover{border-color:var(--brand-300);color:var(--brand-600);background:#F0F7F4;}
.mega-toggle i{font-size:11px;transition:transform .2s ease;}
.mega.open .mega-toggle i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:640px;
  background:#fff;border:1px solid var(--line);border-radius:20px;
  box-shadow:0 24px 60px rgba(18,35,31,.14);
  padding:24px;display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(4px);transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.mega.open .mega-panel,.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:14px;color:var(--ink);display:flex;align-items:center;gap:8px;margin-bottom:12px;}
.mega-col h4 span{display:block;height:3px;width:22px;border-radius:3px;background:var(--grad);}
.mega-list li{margin-bottom:8px;}
.mega-list a{font-size:14px;color:var(--ink-2);}
.mega-list a:hover{color:var(--brand-600);padding-left:3px;}
.mega-post{display:block;padding:9px 10px;border-radius:12px;transition:background .2s ease;}
.mega-post:hover{background:#F5F9F7;}
.mega-post b{display:block;font-size:13.5px;font-weight:600;color:var(--ink);line-height:1.5;}
.mega-post span{display:block;font-size:12px;color:var(--ink-2);margin-top:3px;}
.mega-card{
  background:var(--grad);color:#fff;border-radius:16px;padding:18px;
  display:flex;flex-direction:column;justify-content:space-between;gap:14px;
}
.mega-card b{font-size:15px;color:#fff;line-height:1.5;}
.mega-card p{font-size:13px;color:rgba(255,255,255,.86);margin:6px 0 0;}
.mega-card a{
  align-self:flex-start;background:#fff;color:var(--brand-600);font-size:13px;font-weight:600;
  padding:7px 14px;border-radius:999px;
}
.btn-cta{
  display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:999px;
  background:var(--grad);color:#fff;font-size:14px;font-weight:600;border:none;
  box-shadow:0 8px 20px rgba(14,124,107,.22);transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;
}
.btn-cta:hover{color:#fff;filter:brightness(1.06);transform:scale(1.02);box-shadow:0 12px 28px rgba(14,124,107,.3);}
.btn-cta:active{transform:translateY(1px);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:17px;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--brand-300);color:var(--brand-600);}
.read-progress{position:absolute;left:0;bottom:-1px;height:2px;width:0;background:var(--grad);transition:width .1s linear;}

/* ---------- mobile drawer ---------- */
.offcanvas{border-radius:24px 0 0 24px;border:none;}
.offcanvas-header{border-bottom:1px solid var(--line);}
.offcanvas-title{font-size:17px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;padding:14px 4px;
  border-bottom:1px solid var(--line);font-size:15.5px;font-weight:600;color:var(--ink);
}
.drawer-link:hover{color:var(--brand-600);}
.drawer-link.is-active{color:var(--brand-600);}
.drawer-card{margin-top:24px;background:var(--grad);border-radius:18px;padding:20px;color:#fff;}
.drawer-card p{font-size:13.5px;color:rgba(255,255,255,.88);}
.drawer-card a{background:#fff;color:var(--brand-600);border-radius:999px;padding:8px 16px;font-size:13px;font-weight:600;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13.5px;color:var(--ink-2);}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--brand-600);}
.crumb i{font-size:10px;opacity:.6;}
.crumb .current{color:var(--ink);font-weight:600;}

/* ---------- article hero ---------- */
.article-hero{
  padding:52px 0 44px;
  background-image:linear-gradient(180deg,rgba(250,247,242,.93),rgba(250,247,242,.99)),url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  background:#E8F4F0;color:var(--brand-600);font-size:13px;font-weight:600;
}
.tag.accent{background:#FDF0E5;color:#B45F1C;}
.article-hero h1{font-size:42px;line-height:1.25;letter-spacing:.3px;max-width:940px;margin-bottom:20px;}
.article-meta{display:flex;flex-wrap:wrap;gap:20px;font-size:14px;color:var(--ink-2);}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--brand-500);}
.lead{
  margin-top:22px;padding:18px 22px;border-radius:16px;background:#fff;
  border:1px solid var(--line);border-left:4px solid var(--brand-500);
  font-size:15.5px;color:var(--ink-2);max-width:920px;line-height:1.85;
}

/* ---------- layout ---------- */
.article-wrap{padding:48px 0 72px;}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:36px;align-items:start;}
.article-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px;box-shadow:var(--shadow-sm);
}

/* ---------- article content ---------- */
.article-body{font-size:16px;line-height:1.9;color:#22322E;max-width:820px;}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:26px;line-height:1.4;margin:40px 0 16px;padding-left:14px;position:relative;scroll-margin-top:110px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:20px;line-height:1.5;margin:30px 0 12px;color:var(--brand-600);scroll-margin-top:110px;}
.article-body p{margin:0 0 1.2em;}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body a{color:var(--brand-600);border-bottom:1px solid var(--brand-300);}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:2px;}
.article-body ul li,.article-body ol li{position:relative;padding-left:26px;margin-bottom:9px;color:#2C3D38;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:12px;width:8px;height:8px;border-radius:3px;background:var(--brand-300);
}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:4px;width:20px;height:20px;border-radius:6px;
  background:#E8F4F0;color:var(--brand-600);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:#F3F7F5;
  border-left:4px solid var(--brand-500);border-radius:0 14px 14px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:24px 0;box-shadow:var(--shadow-sm);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:26px 0;font-size:15px;
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
}
.article-body thead th{background:#F1F7F5;color:var(--brand-600);font-weight:700;text-align:left;}
.article-body th,.article-body td{padding:13px 16px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FBFAF7;}
.article-body tbody tr:last-child td{border-bottom:none;}
.article-body hr{border:none;border-top:1px dashed var(--line);margin:32px 0;}
.article-empty{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:#FCFBF8;
}
.article-empty i{font-size:34px;color:var(--brand-300);}
.article-empty h2{font-size:22px;margin:16px 0 10px;}
.article-empty p{color:var(--ink-2);font-size:15px;}
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:999px;
  background:var(--grad);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 20px rgba(14,124,107,.22);transition:transform .2s ease,filter .2s ease;
}
.btn-brand:hover{color:#fff;filter:brightness(1.06);transform:scale(1.02);}
.btn-brand:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:11px 24px;border-radius:999px;
  background:#fff;border:1px solid var(--brand-500);color:var(--brand-600);font-size:15px;font-weight:600;
  transition:background .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:#F0F7F4;color:var(--brand-600);transform:scale(1.02);}
.btn-ghost:active{transform:translateY(1px);}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand-600);font-size:14.5px;}
.link-more i{transition:transform .2s ease;font-size:12px;}
.link-more:hover i{transform:translateX(3px);}
.link-more:hover{text-decoration:underline;}

/* article footer blocks */
.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);}
.article-tags .label{font-size:14px;color:var(--ink-2);font-weight:600;}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px;}
.post-nav-card{
  display:block;padding:18px 20px;border-radius:18px;background:#fff;border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.post-nav-card:hover{border-color:var(--brand-300);box-shadow:var(--shadow-lg);transform:translateY(-4px);}
.post-nav-card .pn-label{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-2);margin-bottom:8px;}
.post-nav-card b{font-size:15.5px;color:var(--ink);line-height:1.55;}
.post-nav-card.next{text-align:right;}
.post-nav-card.next .pn-label{justify-content:flex-end;}

/* ---------- sidebar ---------- */
.side-stack{display:flex;flex-direction:column;gap:22px;position:sticky;top:96px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-sm);}
.side-card h3{font-size:16px;display:flex;align-items:center;gap:9px;margin-bottom:16px;}
.side-card h3 i{color:var(--brand-500);font-size:15px;}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow:auto;}
.toc-link{
  display:block;padding:8px 10px;border-radius:10px;font-size:14px;color:var(--ink-2);
  border-left:2px solid transparent;line-height:1.55;
}
.toc-link:hover{background:#F3F7F5;color:var(--brand-600);}
.toc-link.is-sub{padding-left:22px;font-size:13.5px;}
.toc-link.is-active{background:#E8F4F0;color:var(--brand-600);border-left-color:var(--brand-500);font-weight:600;}
.reco-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);}
.reco-item:last-child{border-bottom:none;padding-bottom:0;}
.reco-item img{width:78px;height:58px;object-fit:cover;border-radius:12px;flex:0 0 78px;}
.reco-item b{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5;}
.reco-item:hover b{color:var(--brand-600);}
.reco-item span{display:block;font-size:12px;color:var(--ink-2);margin-top:4px;}
.side-cta{
  border-radius:var(--r-card);padding:24px;color:#fff;background:var(--grad);
  box-shadow:0 14px 34px rgba(14,124,107,.24);
}
.side-cta h3{color:#fff;font-size:17px;margin-bottom:10px;}
.side-cta p{color:rgba(255,255,255,.88);font-size:13.5px;margin-bottom:16px;}
.side-cta a{background:#fff;color:var(--brand-600);border-radius:999px;padding:9px 18px;font-size:13.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.side-cta a:hover{color:var(--brand-600);filter:brightness(1.03);}

/* ---------- bottom related ---------- */
.related-band{background:#fff;border-top:1px solid var(--line);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px;}
.rel-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-300);}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EEF4F1;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:20px;}
.rel-body .tag{margin-bottom:12px;}
.rel-body h3{font-size:18px;line-height:1.5;margin-bottom:10px;color:var(--ink);}
.rel-card:hover .rel-body h3{color:var(--brand-600);}
.rel-body p{font-size:14px;color:var(--ink-2);margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-2);}
.rel-foot i{color:var(--brand-500);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.section-head h2{font-size:30px;line-height:1.35;}
.section-head p{color:var(--ink-2);font-size:15px;margin:10px 0 0;}

/* ---------- cta + footer ---------- */
.cta-card{
  border-radius:var(--r-lg);background:var(--grad);color:#fff;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 20px 50px rgba(14,124,107,.22);
}
.cta-card h2{color:#fff;font-size:28px;line-height:1.4;}
.cta-card p{color:rgba(255,255,255,.9);margin:12px 0 0;font-size:15px;max-width:640px;}
.cta-card .btn-light-pill{
  background:#fff;color:var(--brand-600);border-radius:999px;padding:13px 28px;font-weight:600;font-size:15px;
  display:inline-flex;align-items:center;gap:8px;transition:transform .2s ease,filter .2s ease;
}
.cta-card .btn-light-pill:hover{color:var(--brand-600);transform:scale(1.02);filter:brightness(1.02);}
.site-footer{background:#0B211C;color:rgba(255,255,255,.78);margin-top:0;position:relative;}
.footer-bar{height:4px;background:var(--grad);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding:56px 0 40px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;}
.site-footer .brand-text{color:#fff;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:12px;line-height:1.7;}
.footer-contact i{color:var(--brand-300);margin-top:5px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-hero h1{font-size:36px;}
  .article-grid{grid-template-columns:minmax(0,1fr) 308px;gap:28px;}
  .article-card{padding:32px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:64px;}
  .header-right .mega{display:none;}
  .article-grid{grid-template-columns:1fr;}
  .side-stack{position:static;}
  .article-hero h1{font-size:30px;}
  .article-hero{padding:38px 0 32px;}
  .article-card{padding:26px;border-radius:22px;}
  .article-body h2{font-size:22px;}
  .section,.article-wrap{padding:56px 0;}
  .section-head h2{font-size:25px;}
  .cta-card{padding:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 32px;}
}
@media (max-width:767px){
  :root{--edge:18px;}
  .brand-text{font-size:15.5px;}
  .btn-cta{padding:10px 16px;font-size:13px;}
  .article-hero h1{font-size:26px;}
  .article-body{font-size:15.5px;}
  .article-body h2{font-size:20px;margin-top:30px;}
  .article-body h3{font-size:17.5px;}
  .related-grid{grid-template-columns:1fr;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav-card.next{text-align:left;}
  .post-nav-card.next .pn-label{justify-content:flex-start;}
  .cta-card{padding:26px;border-radius:22px;}
  .cta-card h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .section{padding:48px 0;}
}

/* roulang page: category1 */
:root{
  --brand-500:#0E7C6B;
  --brand-600:#0A6357;
  --brand-300:#7FC9BC;
  --accent-500:#E8873A;
  --accent-ink:#2A3C6B;
  --ink:#12231F;
  --ink-2:#4A5A56;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --line:#E7E2D9;
  --soft:#F0F7F4;
  --radius:20px;
  --radius-lg:28px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(18,35,31,.06);
  --shadow-hover:0 16px 40px rgba(18,35,31,.12);
  --shadow-badge:0 4px 14px rgba(14,124,107,.18);
  --grad:linear-gradient(120deg,#0E7C6B 0%,#12907C 45%,#0F6E8C 100%);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-600);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.3px;color:var(--ink);}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:6px;}

.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
.section{padding:80px 0;}
.section--tight{padding:56px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-600);
  background:var(--soft);border:1px solid var(--brand-300);
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.section-head h2{font-size:30px;line-height:1.35;margin-bottom:14px;}
.section-head p{color:var(--ink-2);font-size:16px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(18,35,31,.08);}
.header-inner{
  display:flex;align-items:center;gap:24px;min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad);color:#fff;font-weight:700;font-size:17px;
  box-shadow:var(--shadow-badge);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.2px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 14px;font-size:15px;font-weight:600;color:var(--ink-2);
  border-radius:10px;transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  border-radius:2px;background:var(--grad);transform:scaleX(0);
  transform-origin:left;transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--brand-600);background:var(--soft);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-600);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px;}

.mega{position:relative;}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);color:var(--ink);
  font-size:14px;font-weight:600;padding:9px 16px;border-radius:999px;
  cursor:pointer;transition:all .2s var(--ease);
}
.mega-toggle:hover{border-color:var(--brand-300);color:var(--brand-600);background:var(--soft);}
.mega-toggle i{font-size:11px;transition:transform .22s var(--ease);}
.mega.is-open .mega-toggle i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:620px;
  background:#fff;border:1px solid var(--line);border-radius:20px;
  box-shadow:0 24px 60px rgba(18,35,31,.14);
  padding:24px;display:none;grid-template-columns:1fr 1fr 1fr;gap:22px;
  z-index:1040;
}
.mega.is-open .mega-panel{display:grid;animation:megaIn .16s var(--ease) both;}
@keyframes megaIn{from{opacity:0;transform:translateY(4px);}to{opacity:1;transform:translateY(0);}}
.mega-col h4{font-size:14px;color:var(--ink);margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.mega-col h4 span{flex:1;height:1px;background:var(--line);}
.mega-list li+li{margin-top:8px;}
.mega-list a{font-size:14px;color:var(--ink-2);font-weight:500;}
.mega-list a:hover{color:var(--brand-600);}
.mega-post{display:block;padding:9px 0;border-bottom:1px dashed var(--line);}
.mega-post:last-child{border-bottom:0;}
.mega-post b{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5;}
.mega-post span{font-size:12px;color:var(--ink-2);}
.mega-post:hover b{color:var(--brand-600);}
.mega-card{
  background:var(--grad);border-radius:16px;padding:18px;color:#fff;
}
.mega-card b{display:block;font-size:15px;margin-bottom:6px;}
.mega-card p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.88);margin-bottom:12px;}
.mega-card .mega-btn{
  display:inline-block;background:#fff;color:var(--brand-600);
  font-size:13px;font-weight:600;padding:8px 16px;border-radius:999px;
  transition:transform .2s var(--ease);
}
.mega-card .mega-btn:hover{transform:translateY(-2px);color:var(--brand-600);}
.nav-burger{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  font-size:16px;cursor:pointer;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;padding:12px 26px;border-radius:999px;
  border:1px solid transparent;cursor:pointer;
  transition:all .22s var(--ease);line-height:1.4;
}
.btn-primary{
  background:var(--grad);color:#fff;box-shadow:var(--shadow-badge);
}
.btn-primary:hover{color:#fff;filter:brightness(1.06);box-shadow:0 12px 28px rgba(14,124,107,.28);transform:scale(1.02);}
.btn-primary:active{transform:translateY(1px) scale(1);}
.btn-outline{
  background:#fff;border-color:var(--brand-500);color:var(--brand-600);
}
.btn-outline:hover{background:var(--soft);color:var(--brand-600);border-color:var(--brand-600);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{
  background:var(--soft);color:var(--brand-600);border-color:transparent;
}
.btn-ghost:hover{background:#E4F1EC;color:var(--brand-600);}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-sm{padding:9px 20px;font-size:14px;}
.link-arrow{font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.link-arrow i{transition:transform .22s var(--ease);font-size:12px;}
.link-arrow:hover i{transform:translateX(3px);}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px;}

/* ---------- 页面头 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);padding-top:28px;}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--brand-600);}
.crumb i{font-size:10px;opacity:.6;}
.crumb .current{color:var(--ink);font-weight:700;}

.page-hero{
  position:relative;overflow:hidden;
  background:#0C5B50 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-radius:var(--radius-lg);
  margin-top:20px;
  padding:56px 48px;
  color:#fff;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(9,64,56,.94) 0%,rgba(11,86,76,.86) 52%,rgba(12,84,104,.78) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:32px 32px;
}
.page-hero-inner{position:relative;z-index:2;max-width:760px;}
.page-hero .tag{
  display:inline-block;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);
  color:#fff;padding:5px 14px;border-radius:999px;margin-bottom:18px;
}
.page-hero h1{font-size:42px;line-height:1.25;color:#fff;margin-bottom:16px;}
.page-hero p{font-size:16px;color:rgba(255,255,255,.9);max-width:640px;}
.page-hero .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.page-hero .btn-outline{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.6);color:#fff;}
.page-hero .btn-outline:hover{background:rgba(255,255,255,.2);color:#fff;border-color:#fff;}

/* ---------- 数据徽章 ---------- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:-38px;position:relative;z-index:5;}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow);
  transition:all .25s var(--ease);
}
.stat-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:var(--brand-300);}
.stat-card .num{font-size:30px;font-weight:700;color:var(--brand-500);line-height:1.2;}
.stat-card .num small{font-size:14px;font-weight:600;margin-left:2px;}
.stat-card .label{font-size:13px;color:var(--ink-2);margin-top:6px;}

/* ---------- 功能卡（2 列） ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow);height:100%;
  transition:all .25s var(--ease);
}
.feature-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:var(--brand-300);}
.feature-card .fc-icon{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  background:var(--soft);color:var(--brand-600);font-size:20px;margin-bottom:18px;
}
.feature-card h3{font-size:20px;margin-bottom:10px;}
.feature-card p{color:var(--ink-2);font-size:15px;}
.feature-card ul{margin-top:16px;}
.feature-card ul li{
  position:relative;padding-left:22px;font-size:15px;color:var(--ink-2);
  margin-bottom:8px;
}
.feature-card ul li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;
  background:var(--brand-300);
}
.feature-card--wide{grid-column:span 2;display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;}
.feature-card--wide img{border-radius:16px;width:100%;aspect-ratio:16/10;object-fit:cover;}

/* ---------- 对比表 ---------- */
.compare-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:8px 8px 4px;box-shadow:var(--shadow);overflow:hidden;
}
.compare-table{width:100%;border-collapse:separate;border-spacing:0;}
.compare-table th,.compare-table td{
  padding:18px 20px;text-align:left;font-size:15px;vertical-align:top;
  border-bottom:1px solid var(--line);
}
.compare-table thead th{
  font-size:14px;font-weight:700;color:var(--brand-600);
  background:var(--soft);letter-spacing:.3px;
}
.compare-table thead th:first-child{border-top-left-radius:16px;}
.compare-table thead th:last-child{border-top-right-radius:16px;}
.compare-table tbody tr{transition:background .2s var(--ease);}
.compare-table tbody tr:hover{background:#FCFBF8;}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table td strong{display:block;color:var(--ink);font-weight:700;margin-bottom:2px;}
.compare-table td span{color:var(--ink-2);font-size:14px;}
.pill{
  display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;
  background:var(--soft);color:var(--brand-600);border:1px solid var(--brand-300);
}
.pill--accent{background:#FDF1E6;color:#B4631F;border-color:#F3CDA6;}

/* ---------- 步骤时间轴 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow);position:relative;
  transition:all .25s var(--ease);
}
.step-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:var(--brand-300);}
.step-num{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:var(--grad);color:#fff;font-weight:700;font-size:16px;margin-bottom:16px;
  box-shadow:var(--shadow-badge);
}
.step-card h3{font-size:18px;margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--ink-2);}

/* ---------- 适用场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);transition:all .25s var(--ease);
}
.scene-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:var(--brand-300);}
.scene-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.scene-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.scene-card:hover .thumb img{transform:scale(1.04);}
.scene-card .badge-float{
  position:absolute;left:14px;top:14px;
  background:#fff;border:1px solid var(--brand-300);border-radius:14px;
  padding:8px 12px;box-shadow:var(--shadow-badge);
}
.scene-card .badge-float b{display:block;font-size:18px;color:var(--brand-500);line-height:1.2;}
.scene-card .badge-float span{font-size:11px;color:var(--ink-2);}
.scene-card .body{padding:22px;}
.scene-card h3{font-size:18px;margin-bottom:8px;}
.scene-card p{font-size:14px;color:var(--ink-2);}

/* ---------- 材料清单 ---------- */
.check-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:36px;box-shadow:var(--shadow);
  display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
}
.check-panel h3{font-size:22px;margin-bottom:14px;}
.check-list li{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--ink-2);
}
.check-list li:last-child{border-bottom:0;}
.check-list i{color:var(--brand-500);font-size:15px;margin-top:5px;}
.check-list b{color:var(--ink);font-weight:600;}
.check-panel img{border-radius:16px;width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ---------- FAQ ---------- */
.faq-box{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);overflow:hidden;
}
.faq-item+.faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 28px;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.faq-q:hover{color:var(--brand-600);background:#FCFBF8;}
.faq-q .faq-ico{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;background:var(--soft);color:var(--brand-600);
  font-size:12px;transition:transform .25s var(--ease),background .25s var(--ease);
}
.faq-item.is-open .faq-q{color:var(--brand-600);}
.faq-item.is-open .faq-ico{background:var(--brand-500);color:#fff;transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a-inner{padding:0 28px 24px;color:var(--ink-2);font-size:15px;}

/* ---------- CTA 大卡 ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--grad);color:#fff;padding:52px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 20px 50px rgba(14,110,95,.22);
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.08);
}
.cta-card h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:10px;position:relative;z-index:2;}
.cta-card p{color:rgba(255,255,255,.9);font-size:15px;max-width:620px;position:relative;z-index:2;}
.cta-card .cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}
.cta-card .btn-light{background:#fff;color:var(--brand-600);}
.cta-card .btn-light:hover{color:var(--brand-600);transform:translateY(-2px);}
.cta-card .btn-line{background:transparent;border-color:rgba(255,255,255,.7);color:#fff;}
.cta-card .btn-line:hover{background:rgba(255,255,255,.14);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0C2B26;color:rgba(255,255,255,.76);margin-top:80px;position:relative;}
.footer-bar{height:4px;background:var(--grad);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.3fr;gap:32px;
  padding:64px 24px 44px;
}
.site-footer .brand{color:#fff;}
.site-footer .brand:hover{color:#fff;}
.site-footer .brand-text{color:#fff;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);}
.footer-links li+li{margin-top:10px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;transition:color .2s var(--ease),padding-left .2s var(--ease);}
.footer-links a:hover{color:#fff;padding-left:4px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:rgba(255,255,255,.72);}
.footer-contact i{color:var(--brand-300);margin-top:5px;font-size:13px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);}

/* ---------- 固定转化条 ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:1020;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -10px 30px rgba(18,35,31,.08);
  opacity:0;visibility:hidden;transform:translateY(100%);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.sticky-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.sticky-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding-top:8px;padding-bottom:8px;
}
.sticky-inner .sticky-text{font-size:14px;color:var(--ink-2);}
.sticky-inner .btn{padding:9px 22px;font-size:14px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .header-inner{gap:16px;}
  .main-nav{gap:0;}
  .nav-link{padding:10px 10px;font-size:14px;}
  .page-hero h1{font-size:36px;}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:991.98px){
  .main-nav{display:none;}
  .nav-burger{display:inline-grid;place-items:center;}
  .mega-panel{width:min(92vw,520px);grid-template-columns:1fr 1fr;}
  .header-right{gap:8px;}
  .feature-card--wide{grid-template-columns:1fr;}
  .check-panel{grid-template-columns:1fr;padding:28px;}
  .section{padding:64px 0;}
  .page-hero{padding:44px 32px;}
  .page-hero h1{font-size:32px;}
  .cta-card{padding:40px 32px;}
  .compare-wrap{overflow-x:auto;}
  .compare-table{min-width:720px;}
}
@media (max-width:767.98px){
  body{font-size:15px;}
  .header-inner{min-height:60px;}
  .brand-text{font-size:15px;}
  .brand-mark{width:34px;height:34px;font-size:15px;}
  .mega,.header-right .btn{display:none;}
  .section{padding:48px 0;}
  .section-head h2{font-size:24px;}
  .page-hero{border-radius:20px;padding:34px 22px;margin-top:14px;}
  .page-hero h1{font-size:28px;line-height:1.3;}
  .page-hero .hero-actions{gap:10px;}
  .page-hero .hero-actions .btn{width:100%;}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:14px;margin-top:-24px;}
  .stat-card{padding:18px 16px;}
  .stat-card .num{font-size:24px;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card--wide{grid-column:span 1;}
  .feature-card{padding:24px;}
  .steps{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .cta-card{padding:32px 22px;border-radius:20px;}
  .cta-card h2{font-size:22px;}
  .cta-card .cta-actions{width:100%;}
  .cta-card .cta-actions .btn{width:100%;}
  .faq-q{padding:18px 20px;font-size:15px;}
  .faq-a-inner{padding:0 20px 20px;}
  .footer-grid{grid-template-columns:1fr;padding:44px 24px 32px;}
  .footer-bottom .container{flex-direction:column;}
  .sticky-inner{flex-direction:column;align-items:stretch;gap:8px;padding-top:10px;padding-bottom:10px;}
  .sticky-inner .sticky-text{font-size:13px;line-height:1.6;}
  .sticky-inner .btn{width:100%;}
}
@media (max-width:519.98px){
  .container{padding-left:18px;padding-right:18px;}
  .stat-row{grid-template-columns:1fr 1fr;}
  .page-hero h1{font-size:25px;}
}
/* 移动端抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:1050;display:none;
}
.nav-drawer.is-open{display:block;}
.nav-drawer .mask{position:absolute;inset:0;background:rgba(12,43,38,.5);}
.nav-drawer .panel{
  position:absolute;left:0;right:0;top:0;background:#fff;
  border-radius:0 0 24px 24px;padding:20px 22px 26px;
  animation:drawerIn .22s var(--ease) both;
}
@keyframes drawerIn{from{transform:translateY(-14px);opacity:0;}to{transform:translateY(0);opacity:1;}}
.nav-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.nav-drawer .drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);cursor:pointer;
}
.nav-drawer a.drawer-link{
  display:block;padding:13px 4px;font-size:16px;font-weight:600;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.nav-drawer a.drawer-link:hover,.nav-drawer a.drawer-link.is-active{color:var(--brand-600);}
.nav-drawer .drawer-cta{margin-top:18px;width:100%;}

/* roulang page: category2 */
:root{
  --brand-500:#0E7C6B;
  --brand-600:#0A6357;
  --brand-300:#7FC9BC;
  --accent-500:#E8873A;
  --accent-ink:#2A3C6B;
  --ink:#12231F;
  --ink-2:#4A5A56;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --line:#E7E2D9;
  --grad:linear-gradient(120deg,#0E7C6B 0%,#12907C 45%,#0F6E8C 100%);
  --r-card:20px;
  --r-lg:28px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:16px;
  --sh-1:0 8px 24px rgba(18,35,31,.06);
  --sh-2:0 16px 40px rgba(18,35,31,.12);
  --sh-badge:0 4px 14px rgba(14,124,107,.18);
  --font:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);
  font-size:16px;line-height:1.85;letter-spacing:.2px;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-600);}
h1,h2,h3,h4{margin:0 0 14px;font-weight:700;line-height:1.28;letter-spacing:.3px;color:var(--ink);}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:30px;margin-bottom:12px;}
.section-head p{color:var(--ink-2);font-size:15px;margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-600);
  background:#EAF5F1;border:1px solid var(--brand-300);border-radius:var(--r-btn);
  padding:5px 14px;margin-bottom:16px;
}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand-500);}
.text-link i{transition:transform .2s ease;}
.text-link:hover i{transform:translateX(3px);}
.text-link:hover{text-decoration:underline;}

/* ===== 头部 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(18,35,31,.08);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;
  box-shadow:var(--sh-badge);
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand-600);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;font-size:15px;font-weight:600;
  color:var(--ink-2);border-radius:12px;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-600);background:#F3F8F6;}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-600);}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;font-weight:600;
  padding:12px 26px;font-size:15px;line-height:1;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-badge);}
.btn-primary:hover{color:#fff;filter:brightness(1.06);box-shadow:0 10px 26px rgba(14,124,107,.28);transform:scale(1.02);}
.btn-primary:active{transform:translateY(1px) scale(1);}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:var(--brand-300);}
.btn-ghost:hover{background:#F0F7F4;color:var(--brand-600);border-color:var(--brand-500);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn[disabled],.btn.disabled{opacity:.55;cursor:not-allowed;box-shadow:none;transform:none;}
.mega{position:relative;}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;background:#F3F8F6;border:1px solid var(--line);
  color:var(--ink);border-radius:var(--r-btn);padding:10px 18px;font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .2s ease,border-color .2s ease;
}
.mega-toggle:hover{background:#EAF5F1;border-color:var(--brand-300);}
.mega-toggle i{font-size:11px;transition:transform .2s ease;}
.mega-toggle[aria-expanded="true"] i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:620px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:0 24px 60px rgba(18,35,31,.14);
  padding:24px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-4px);transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:14px;color:var(--ink);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.mega-col h4 span{flex:1;height:1px;background:var(--line);}
.mega-list li{margin-bottom:10px;}
.mega-list a{font-size:14px;color:var(--ink-2);}
.mega-list a:hover{color:var(--brand-600);}
.mega-post{display:block;padding:10px 12px;border-radius:12px;background:#FAF7F2;margin-bottom:10px;}
.mega-post b{display:block;font-size:13.5px;font-weight:600;color:var(--ink);line-height:1.5;}
.mega-post span{font-size:12px;color:var(--ink-2);}
.mega-post:hover{background:#EAF5F1;}
.mega-entry{background:var(--grad);color:#fff;border-radius:16px;padding:16px;}
.mega-entry b{display:block;font-size:14px;color:#fff;margin-bottom:6px;}
.mega-entry p{font-size:12.5px;color:rgba(255,255,255,.86);margin-bottom:12px;line-height:1.6;}
.mega-entry .btn{background:#fff;color:var(--brand-600);padding:8px 16px;font-size:13px;box-shadow:none;}
.hamburger{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  color:var(--ink);align-items:center;justify-content:center;cursor:pointer;
}
.offcanvas{background:#fff;border-radius:24px 24px 0 0;border:none;}
.offcanvas-header{border-bottom:1px solid var(--line);}
.drawer-nav a{display:block;padding:14px 4px;font-size:16px;font-weight:600;color:var(--ink);border-bottom:1px dashed var(--line);}
.drawer-nav a.is-active{color:var(--brand-600);}

/* ===== 页头横幅 ===== */
.page-hero{
  position:relative;background-color:var(--brand-600);
  background-image:linear-gradient(115deg,rgba(10,99,87,.94) 0%,rgba(14,124,107,.88) 48%,rgba(15,110,140,.86) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:#fff;padding:64px 0 68px;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:28px 28px;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.82);margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb .current{font-weight:700;color:#fff;}
.page-hero h1{color:#fff;font-size:42px;margin-bottom:14px;}
.page-hero .lead{max-width:640px;font-size:16px;color:rgba(255,255,255,.9);margin:0;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags span{
  font-size:13px;padding:6px 14px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);color:#fff;
}

/* ===== 主体两栏 ===== */
.layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;align-items:start;}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);}
.panel-head{padding:20px 24px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;}
.panel-head h2{font-size:19px;margin:0;}
.panel-head span{font-size:13px;color:var(--ink-2);}
.panel-body{padding:8px 24px 24px;}

/* 横排条目 */
.news-row{
  display:grid;grid-template-columns:78px 168px minmax(0,1fr);gap:20px;align-items:start;
  padding:22px 0;border-bottom:1px dashed var(--line);
}
.news-row:last-child{border-bottom:none;}
.news-date{border-right:1px solid var(--line);padding-right:12px;text-align:left;}
.news-date b{display:block;font-size:20px;font-weight:700;color:var(--brand-600);letter-spacing:.5px;}
.news-date span{font-size:12.5px;color:var(--ink-2);}
.news-thumb{border-radius:var(--r-img);overflow:hidden;background:#EFEBE3;aspect-ratio:16/10;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-row:hover .news-thumb img{transform:scale(1.05);}
.news-body h3{font-size:18px;margin-bottom:8px;}
.news-body h3 a{color:var(--ink);}
.news-body h3 a:hover{color:var(--brand-500);}
.news-body p{font-size:14.5px;color:var(--ink-2);margin-bottom:10px;line-height:1.75;}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--ink-2);}
.news-meta i{color:var(--brand-300);margin-right:5px;}
.tag{
  display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;color:var(--brand-600);
  background:#EAF5F1;border:1px solid #CFE8E1;border-radius:var(--r-btn);padding:4px 12px;margin-bottom:10px;
}
.tag-accent{background:#FDF1E6;border-color:#F6D5B4;color:#B4621E;}

/* 侧栏 */
.side-stack{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px;}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px;}
.side-card h3{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.side-card h3 i{color:var(--brand-500);}
.cloud{display:flex;flex-wrap:wrap;gap:10px;}
.cloud a{
  font-size:13px;padding:6px 13px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#FAF7F2;color:var(--ink-2);transition:all .2s ease;
}
.cloud a:hover{background:#EAF5F1;border-color:var(--brand-300);color:var(--brand-600);transform:translateY(-2px);}
.brief-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);}
.brief-list li:last-child{border-bottom:none;padding-bottom:0;}
.brief-list b{font-size:22px;font-weight:700;color:var(--brand-500);min-width:44px;}
.brief-list span{font-size:14px;color:var(--ink-2);line-height:1.6;}
.side-gradient{background:var(--grad);border:none;color:#fff;}
.side-gradient h3{color:#fff;}
.side-gradient p{color:rgba(255,255,255,.88);font-size:14px;}
.side-gradient .btn{background:#fff;color:var(--brand-600);width:100%;box-shadow:none;}
.entry-links li{padding:10px 0;border-bottom:1px dashed var(--line);}
.entry-links li:last-child{border-bottom:none;}
.entry-links a{display:flex;align-items:center;justify-content:space-between;font-size:14.5px;color:var(--ink);}
.entry-links a i{font-size:12px;color:var(--brand-300);transition:transform .2s ease;}
.entry-links a:hover{color:var(--brand-600);}
.entry-links a:hover i{transform:translateX(3px);}

/* 导读卡 */
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.guide-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-300);}
.guide-card .ico{
  width:44px;height:44px;border-radius:14px;background:#EAF5F1;color:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.guide-card h3{font-size:17px;margin-bottom:8px;}
.guide-card p{font-size:14px;color:var(--ink-2);margin:0;}
.guide-card .num{font-size:13px;font-weight:700;color:var(--accent-500);letter-spacing:1px;}

/* 数据条 */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.metric{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.metric b{display:block;font-size:30px;font-weight:700;color:var(--brand-500);line-height:1.2;}
.metric span{font-size:13px;color:var(--ink-2);}
.metric:nth-child(2){transform:translateY(14px);}

/* FAQ */
.faq-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:none;text-align:left;padding:22px 26px;font-size:16px;font-weight:600;
  color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;
}
.faq-q:hover{color:var(--brand-600);}
.faq-q .fi{
  width:24px;height:24px;flex:0 0 24px;border-radius:50%;background:#EAF5F1;color:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;transition:transform .25s ease,background-color .25s ease;
}
.faq-item.is-open .faq-q{color:var(--brand-600);}
.faq-item.is-open .fi{transform:rotate(135deg);background:var(--brand-500);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 26px 22px;margin:0;font-size:14.6px;color:var(--ink-2);line-height:1.8;}

/* CTA 大卡 */
.cta-card{
  background:var(--grad);border-radius:var(--r-lg);color:#fff;padding:56px 48px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  box-shadow:0 20px 50px rgba(14,124,107,.22);position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-card h2{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-card p{color:rgba(255,255,255,.88);margin:0;max-width:560px;font-size:15px;}
.cta-card .btn{background:#fff;color:var(--brand-600);box-shadow:0 10px 26px rgba(0,0,0,.14);position:relative;z-index:2;}
.cta-card .btn:hover{background:#F4FBF8;color:var(--brand-600);}

/* 页脚 */
.site-footer{background:#0C1F1B;color:#C8D6D2;margin-top:8px;position:relative;}
.footer-bar{height:4px;background:var(--grad);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;padding:64px 24px 48px;max-width:1200px;margin:0 auto;}
.site-footer .brand-text{color:#fff;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;}
.site-footer p{color:#A9BCB7;font-size:14px;line-height:1.8;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:#A9BCB7;font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;font-size:14px;color:#A9BCB7;}
.footer-contact i{color:var(--brand-300);margin-top:5px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);}
.footer-bottom .container{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:20px;padding-bottom:20px;font-size:13px;color:rgba(255,255,255,.55);}

/* 固定转化条 */
.sticky-convert{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(18,35,31,.08);opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.sticky-convert.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.sticky-inner{display:flex;align-items:center;justify-content:flex-end;gap:20px;height:56px;}
.sticky-inner .sticky-text{font-size:14px;color:var(--ink-2);margin-right:auto;}
.sticky-inner .btn{padding:9px 22px;font-size:14px;}

/* 空态 */
.empty-state{padding:44px 24px;text-align:center;color:var(--ink-2);}
.empty-state i{font-size:32px;color:var(--brand-300);margin-bottom:14px;display:block;}
.empty-state p{font-size:14.5px;margin-bottom:16px;}

/* 响应式 */
@media (max-width:1199px){
  .main-nav .nav-link{padding:10px 10px;font-size:14px;}
  .mega-panel{width:540px;grid-template-columns:1fr 1fr;}
  .mega-entry{grid-column:span 2;}
  .guide-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .hamburger{display:inline-flex;}
  .header-inner{height:64px;gap:14px;}
  .brand-text{font-size:16px;}
  .header-right .btn-primary{display:none;}
  .layout{grid-template-columns:1fr;}
  .side-stack{position:static;}
  .page-hero h1{font-size:32px;}
  .section{padding:56px 0;}
  .guide-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric:nth-child(2){transform:none;}
  .cta-card{grid-template-columns:1fr;padding:40px 28px;text-align:left;}
  .footer-grid{grid-template-columns:1fr 1fr;padding:48px 24px 36px;}
}
@media (max-width:767px){
  body{font-size:15.5px;line-height:1.8;}
  .page-hero{padding:44px 0 48px;}
  .page-hero h1{font-size:28px;}
  .news-row{grid-template-columns:1fr;gap:14px;padding:20px 0;}
  .news-date{border-right:none;border-bottom:1px solid var(--line);padding:0 0 8px;display:flex;align-items:baseline;gap:8px;}
  .news-date b{font-size:17px;}
  .news-thumb{aspect-ratio:16/9;}
  .panel-body{padding:6px 18px 18px;}
  .panel-head{padding:18px;}
  .guide-grid{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr 1fr;gap:14px;}
  .metric b{font-size:24px;}
  .faq-q{font-size:15px;padding:18px;}
  .faq-a p{padding:0 18px 18px;}
  .cta-card h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .sticky-inner{height:auto;min-height:56px;padding:8px 0;flex-wrap:wrap;}
  .sticky-inner .sticky-text{font-size:13px;}
  .mega{display:none;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .metrics{grid-template-columns:1fr;}
  .brand-text{font-size:15px;}
  .page-hero h1{font-size:25px;}
  .sticky-inner .btn{width:100%;}
  .sticky-inner .sticky-text{width:100%;margin-bottom:6px;}
}

/* roulang page: category3 */
:root{
  --brand-500:#0E7C6B;
  --brand-600:#0A6357;
  --brand-300:#7FC9BC;
  --accent-500:#E8873A;
  --accent-ink:#2A3C6B;
  --ink:#12231F;
  --ink-2:#4A5A56;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --line:#E7E2D9;
  --brand-grad:linear-gradient(120deg,#0E7C6B 0%,#12907C 45%,#0F6E8C 100%);
  --radius:20px;
  --radius-lg:28px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(18,35,31,.06);
  --shadow-hover:0 16px 40px rgba(18,35,31,.12);
  --badge-shadow:0 4px 14px rgba(14,124,107,.18);
  --font:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  padding-bottom:0;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-500);}
h1,h2,h3,h4{font-weight:700;color:var(--ink);letter-spacing:.3px;line-height:1.3;margin:0;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:6px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
.section{padding:80px 0;}
.section-sm{padding:56px 0;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-600);
  background:#EAF5F1;border:1px solid #CDE7DF;border-radius:999px;
  padding:5px 14px;margin-bottom:14px;
}
.section-head h2{font-size:30px;margin-bottom:12px;}
.section-head p{color:var(--ink-2);font-size:16px;margin:0;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(18,35,31,.08);}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--brand-grad);
  color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700;
  box-shadow:var(--badge-shadow);
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.3px;}
.brand:hover .brand-text{color:var(--brand-600);}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;padding:10px 13px;font-size:15px;font-weight:600;
  color:var(--ink-2);border-radius:999px;transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;
  background:var(--brand-grad);border-radius:2px;transform:scaleX(0);
  transition:transform .22s ease;transform-origin:left center;
}
.nav-link:hover{color:var(--brand-600);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-600);background:#F1F8F6;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-right{display:flex;align-items:center;gap:12px;}
.mega{position:relative;}
.mega-toggle{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;border:1px solid var(--line);border-radius:999px;
  padding:9px 16px;font-size:14px;font-weight:600;color:var(--ink-2);cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.mega-toggle:hover{border-color:var(--brand-300);color:var(--brand-600);background:#F5FAF8;}
.mega-toggle i{font-size:11px;transition:transform .2s ease;}
.mega.is-open .mega-toggle{border-color:var(--brand-300);color:var(--brand-600);}
.mega.is-open .mega-toggle i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:640px;
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  box-shadow:0 24px 60px rgba(18,35,31,.14);padding:22px;
  display:grid;grid-template-columns:1fr 1.1fr 1fr;gap:20px;
  opacity:0;visibility:hidden;transform:translateY(4px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{
  font-size:14px;color:var(--ink);margin-bottom:12px;display:flex;align-items:center;gap:8px;
}
.mega-col h4 span{flex:1;height:1px;background:var(--line);}
.mega-list li{margin-bottom:8px;}
.mega-list a{display:block;font-size:14px;color:var(--ink-2);padding:5px 0;}
.mega-list a:hover{color:var(--brand-600);}
.mega-post{display:block;padding:9px 0;border-bottom:1px dashed var(--line);}
.mega-post:last-child{border-bottom:0;}
.mega-post b{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5;}
.mega-post span{font-size:12px;color:var(--ink-2);}
.mega-post:hover b{color:var(--brand-600);}
.mega-entry{
  background:var(--brand-grad);border-radius:16px;padding:16px;color:#fff;
  display:flex;flex-direction:column;justify-content:space-between;gap:14px;
}
.mega-entry strong{font-size:15px;line-height:1.5;font-weight:700;display:block;}
.mega-entry small{font-size:12px;opacity:.82;display:block;margin-top:6px;}
.mega-entry a{
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;color:var(--brand-600);border-radius:999px;
  font-size:13px;font-weight:600;padding:8px 14px;align-self:flex-start;
}
.mega-entry a:hover{color:var(--brand-600);background:#F0FBF8;}

/* ---------- Buttons ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand-grad);color:#fff;border:0;border-radius:999px;
  padding:12px 26px;font-size:15px;font-weight:600;cursor:pointer;
  box-shadow:0 6px 18px rgba(14,124,107,.22);
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
}
.btn-x:hover{filter:brightness(1.06);box-shadow:0 12px 28px rgba(14,124,107,.28);transform:scale(1.02);color:#fff;}
.btn-x:active{transform:translateY(1px) scale(1);}
.btn-x:disabled{opacity:.55;cursor:not-allowed;filter:grayscale(.3);transform:none;box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;color:var(--brand-600);border:1px solid var(--brand-500);
  border-radius:999px;padding:11px 24px;font-size:15px;font-weight:600;cursor:pointer;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-ghost:hover{background:#F0F7F4;color:var(--brand-600);box-shadow:0 8px 20px rgba(18,35,31,.08);}
.btn-ghost:active{transform:translateY(1px);}
.btn-ghost:disabled{opacity:.5;cursor:not-allowed;}
.btn-sm{padding:9px 18px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);
}
.link-arrow i{transition:transform .2s ease;font-size:12px;}
.link-arrow:hover{text-decoration:underline;}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  background-image:linear-gradient(120deg,rgba(10,99,87,.94) 0%,rgba(14,124,107,.90) 45%,rgba(15,110,140,.92) 100%),url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  color:#fff;padding:64px 0 72px;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:48px 48px;opacity:.5;
}
.page-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,.78);margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.85);}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb span.sep{opacity:.55;}
.crumb .current{font-weight:700;color:#fff;}
.page-hero h1{font-size:42px;color:#fff;margin-bottom:14px;max-width:820px;}
.page-hero .lead{font-size:16px;color:rgba(255,255,255,.9);max-width:640px;margin-bottom:8px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  color:#fff;border-radius:999px;padding:6px 14px;backdrop-filter:blur(2px);
}

/* ---------- Stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:36px;}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;box-shadow:var(--shadow);
}
.stat-card:nth-child(2){transform:translateY(16px);}
.stat-card b{display:block;font-size:30px;font-weight:700;color:var(--brand-600);line-height:1.2;}
.stat-card span{display:block;font-size:13px;color:var(--ink-2);margin-top:4px;}

/* ---------- Case rows ---------- */
.case-row{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;padding:36px 0;border-bottom:1px solid var(--line);}
.case-row:last-of-type{border-bottom:0;}
.case-row.reverse .case-media{order:2;}
.case-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);}
.case-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s ease;}
.case-row:hover .case-media img{transform:scale(1.04);}
.case-badge{
  position:absolute;left:18px;top:18px;background:#fff;border:1px solid var(--brand-300);
  border-radius:16px;padding:10px 16px;box-shadow:var(--badge-shadow);
}
.case-badge b{display:block;font-size:24px;font-weight:700;color:var(--brand-600);line-height:1.15;}
.case-badge span{display:block;font-size:12px;color:var(--ink-2);}
.case-body .chip{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:var(--brand-600);
  background:#EAF5F1;border:1px solid #CDE7DF;border-radius:999px;padding:4px 12px;margin-bottom:14px;
}
.case-body h3{font-size:22px;margin-bottom:14px;}
.case-body .case-note{font-size:15px;color:var(--ink-2);margin-bottom:10px;}
.case-body .case-note b{color:var(--ink);font-weight:600;}
.case-foot{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-top:18px;}
.case-meta{font-size:13px;color:var(--ink-2);display:inline-flex;align-items:center;gap:6px;}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-300);}
.step-num{
  width:38px;height:38px;border-radius:999px;background:var(--brand-grad);color:#fff;
  display:grid;place-items:center;font-size:15px;font-weight:700;margin-bottom:16px;
  box-shadow:var(--badge-shadow);
}
.step-card h3{font-size:17px;margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--ink-2);margin:0;}

/* ---------- Quote cards ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:16px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-300);}
.quote-card i.quote{color:var(--brand-300);font-size:20px;}
.quote-card p{font-size:15px;color:var(--ink-2);margin:0;}
.quote-who{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:14px;}
.avatar{
  width:40px;height:40px;border-radius:999px;background:#EAF5F1;color:var(--brand-600);
  display:grid;place-items:center;font-size:15px;font-weight:700;border:1px solid #CDE7DF;
}
.quote-who b{display:block;font-size:14px;color:var(--ink);}
.quote-who span{font-size:12px;color:var(--ink-2);}
.logo-wall{
  display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:36px;
}
.logo-wall span{
  display:grid;place-items:center;height:64px;border:1px solid var(--line);border-radius:16px;
  background:#fff;color:#93A29D;font-size:14px;font-weight:600;filter:grayscale(1);
  transition:filter .25s ease,color .25s ease,border-color .25s ease,transform .25s ease;
}
.logo-wall span:hover{filter:grayscale(0);color:var(--brand-600);border-color:var(--brand-300);transform:translateY(-3px);}

/* ---------- FAQ ---------- */
.faq-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:10px 26px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-600);}
.faq-item.is-open .faq-q{color:var(--brand-600);}
.faq-q i{color:var(--brand-500);font-size:14px;transition:transform .25s ease;flex-shrink:0;}
.faq-item.is-open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{font-size:15px;color:var(--ink-2);margin:0;padding:0 0 20px;max-width:900px;}

/* ---------- CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--brand-grad);color:#fff;padding:52px 48px;
  box-shadow:0 20px 50px rgba(14,124,107,.24);
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:999px;
  background:rgba(255,255,255,.1);
}
.cta-card h2{color:#fff;font-size:30px;margin-bottom:12px;position:relative;z-index:2;}
.cta-card p{color:rgba(255,255,255,.9);max-width:640px;position:relative;z-index:2;margin-bottom:26px;}
.cta-card .btn-x{background:#fff;color:var(--brand-600);box-shadow:0 8px 22px rgba(0,0,0,.14);position:relative;z-index:2;}
.cta-card .btn-x:hover{background:#F0FBF8;color:var(--brand-600);}
.cta-card .btn-ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;position:relative;z-index:2;}
.cta-card .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- Footer ---------- */
.site-footer{background:#0C211D;color:#D8E3E0;margin-top:0;position:relative;}
.footer-bar{height:4px;background:linear-gradient(120deg,#0E7C6B 0%,#12907C 45%,#0F6E8C 100%);}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;
  padding:56px 0 40px;
}
.footer-grid h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-grid p{font-size:14px;color:#A9BBB7;line-height:1.85;}
.site-footer .brand-text{color:#fff;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:#A9BBB7;}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#A9BBB7;margin-bottom:12px;}
.footer-contact i{color:var(--brand-300);margin-top:5px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;}
.footer-bottom span{font-size:13px;color:rgba(216,227,224,.65);}

/* ---------- Sticky CTA ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:1050;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(18,35,31,.09);
  transform:translateY(120%);transition:transform .25s ease;
}
.sticky-cta.is-show{transform:translateY(0);}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:56px;padding:8px 24px;}
.sticky-inner p{margin:0;font-size:14px;color:var(--ink-2);}
.sticky-inner p b{color:var(--ink);font-weight:600;}

/* ---------- Mobile nav ---------- */
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:16px;cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--brand-300);color:var(--brand-600);}
.mobile-drawer{
  position:fixed;left:0;right:0;top:0;z-index:1060;
  background:#fff;border-radius:0 0 24px 24px;box-shadow:0 24px 60px rgba(18,35,31,.18);
  padding:22px 20px 26px;transform:translateY(-110%);transition:transform .28s ease;
  max-height:88vh;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0);}
.mobile-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);background:#fff;
  color:var(--ink-2);cursor:pointer;font-size:15px;
}
.drawer-close:hover{color:var(--brand-600);border-color:var(--brand-300);}
.mobile-drawer .m-nav a{
  display:block;padding:14px 4px;font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-drawer .m-nav a:hover,.mobile-drawer .m-nav a.is-active{color:var(--brand-600);}
.mobile-drawer .m-cta{margin-top:20px;display:flex;}
.mobile-drawer .m-cta .btn-x{width:100%;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .mega-panel{width:560px;grid-template-columns:1fr 1fr;}
  .mega-entry{display:none;}
  .logo-wall{grid-template-columns:repeat(3,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat-card:nth-child(2){transform:none;}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-grid;place-items:center;}
  .header-right{margin-left:auto;}
  .mega{display:none;}
  .header-inner{height:60px;}
  .page-hero h1{font-size:32px;}
  .section{padding:56px 0;}
  .case-row{grid-template-columns:1fr;gap:24px;}
  .case-row.reverse .case-media{order:0;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .quote-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;padding:44px 0 32px;}
  .cta-card{padding:40px 28px;}
  .cta-card h2{font-size:24px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .page-hero{padding:44px 0 52px;}
  .page-hero h1{font-size:28px;line-height:1.3;}
  .section{padding:48px 0;}
  .section-head h2{font-size:24px;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:12px;}
  .stat-card b{font-size:24px;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .logo-wall{grid-template-columns:repeat(2,1fr);}
  .faq-wrap{padding:6px 18px;}
  .sticky-inner{flex-direction:column;align-items:stretch;gap:8px;padding:10px 16px;text-align:center;}
  .sticky-inner .btn-x{width:100%;}
  body{padding-bottom:96px;}
  .cta-card{padding:32px 22px;border-radius:22px;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:15px;}
  .stat-grid{grid-template-columns:1fr;}
  .page-hero h1{font-size:25px;}
  .case-body h3{font-size:19px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn-x,.cta-actions .btn-ghost{width:100%;}
}

/* roulang page: category4 */
:root{
  --brand-500:#0E7C6B;
  --brand-600:#0A6357;
  --brand-300:#7FC9BC;
  --brand-050:#F0F7F4;
  --accent-500:#E8873A;
  --accent-ink:#2A3C6B;
  --ink:#12231F;
  --ink-2:#4A5A56;
  --bg:#FAF7F2;
  --surface:#FFFFFF;
  --line:#E7E2D9;
  --grad:linear-gradient(120deg,#0E7C6B 0%,#12907C 45%,#0F6E8C 100%);
  --r-card:20px;
  --r-lg:28px;
  --r-img:16px;
  --sh-1:0 8px 24px rgba(18,35,31,.06);
  --sh-2:0 16px 40px rgba(18,35,31,.12);
  --sh-badge:0 4px 14px rgba(14,124,107,.18);
  --sh-panel:0 24px 60px rgba(18,35,31,.14);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  padding-bottom:0;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.3px;color:var(--ink);}
p{margin:0 0 1em;}
a{color:var(--brand-500);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--brand-600);}
img{max-width:100%;display:block;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;white-space:nowrap;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;
  box-shadow:var(--sh-badge);flex:0 0 auto;
}
.brand-text{font-size:17px;letter-spacing:.4px;}
.brand:hover{color:var(--brand-600);}
.main-nav{display:flex;align-items:center;gap:6px;flex:1 1 auto;}
.nav-link{
  position:relative;display:inline-block;padding:10px 12px;font-size:15px;font-weight:600;color:var(--ink-2);
  border-radius:10px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-600);background:var(--brand-050);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-600);}
.header-right{display:flex;align-items:center;gap:12px;margin-left:auto;}

/* Mega */
.mega{position:relative;}
.mega-toggle{
  display:inline-flex;align-items:center;gap:6px;padding:10px 14px;font-size:15px;font-weight:600;
  color:var(--ink-2);border-radius:999px;border:1px solid var(--line);background:var(--surface);
  transition:all .18s ease;
}
.mega-toggle:hover,.mega-toggle[aria-expanded="true"]{color:var(--brand-600);border-color:var(--brand-300);background:var(--brand-050);}
.mega-toggle i{font-size:11px;transition:transform .2s ease;}
.mega-toggle[aria-expanded="true"] i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:640px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-panel);padding:24px;
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(4px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:14px;color:var(--ink);display:flex;align-items:center;gap:8px;margin-bottom:12px;}
.mega-col h4 span{flex:1;height:1px;background:var(--line);display:inline-block;}
.mega-list li{margin-bottom:8px;}
.mega-list a{font-size:14px;color:var(--ink-2);display:inline-flex;align-items:center;gap:6px;}
.mega-list a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand-300);transition:background .18s ease;}
.mega-list a:hover{color:var(--brand-600);}
.mega-list a:hover::before{background:var(--accent-500);}
.mega-post{display:block;padding:8px 0;border-bottom:1px dashed var(--line);}
.mega-post:last-child{border-bottom:none;}
.mega-post b{display:block;font-size:13.5px;font-weight:600;color:var(--ink);line-height:1.5;
  overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.mega-post span{font-size:12px;color:var(--ink-2);}
.mega-post:hover b{color:var(--brand-600);}
.mega-card{
  background:var(--grad);color:#fff;border-radius:16px;padding:16px;display:flex;flex-direction:column;gap:10px;
}
.mega-card p{font-size:13px;color:rgba(255,255,255,.88);margin:0;line-height:1.6;}
.mega-card a{
  display:inline-block;align-self:flex-start;font-size:13px;font-weight:600;color:var(--brand-600);
  background:#fff;border-radius:999px;padding:8px 16px;
}
.mega-card a:hover{background:var(--brand-050);}

/* 按钮 */
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;background:var(--grad);color:#fff;
  font-size:15px;font-weight:600;letter-spacing:.3px;box-shadow:var(--sh-badge);
  transition:filter .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-grad:hover{color:#fff;filter:brightness(1.06);box-shadow:var(--sh-2);transform:scale(1.02);}
.btn-grad:active{transform:translateY(1px) scale(1);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:999px;background:var(--surface);color:var(--brand-600);
  border:1px solid var(--brand-300);font-size:15px;font-weight:600;transition:all .18s ease;
}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-600);border-color:var(--brand-500);}
.btn-ghost:active{transform:translateY(1px);}
.btn-ghost[disabled],.btn-grad[disabled]{opacity:.5;cursor:not-allowed;transform:none;filter:none;}
.link-arrow{font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.link-arrow i{font-size:12px;transition:transform .18s ease;}
.link-arrow:hover i{transform:translateX(3px);}
.link-arrow:hover{text-decoration:underline;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  color:var(--ink-2);font-size:16px;align-items:center;justify-content:center;}

/* ---------- 页面头 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
  padding:44px 0 56px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;opacity:.05;pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-2);margin-bottom:20px;}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--brand-600);}
.crumb span{color:var(--brand-300);}
.crumb b{color:var(--ink);font-weight:600;}
.page-hero h1{font-size:42px;line-height:1.25;letter-spacing:.4px;}
.page-hero-sub{margin:16px 0 0;font-size:16.5px;color:var(--ink-2);max-width:720px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:18px;margin-top:32px;}
.badge-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 22px;box-shadow:var(--sh-1);min-width:170px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.badge-card:nth-child(2){transform:translateY(14px);}
.badge-card:hover{box-shadow:var(--sh-2);border-color:var(--brand-300);}
.badge-num{font-size:30px;font-weight:700;color:var(--brand-500);line-height:1.2;}
.badge-num small{font-size:15px;font-weight:600;margin-left:2px;}
.badge-label{font-size:13px;color:var(--ink-2);margin-top:4px;}

/* ---------- 板块通用 ---------- */
.section{padding:80px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:36px;max-width:760px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-600);
  background:var(--brand-050);border:1px solid var(--brand-300);border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.section-head h2{font-size:30px;line-height:1.35;}
.section-head p{margin:12px 0 0;color:var(--ink-2);font-size:15.5px;}

/* 支持渠道卡 */
.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.channel-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh-1);height:100%;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-300);}
.channel-icon{
  width:46px;height:46px;border-radius:14px;background:var(--brand-050);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
  border:1px solid var(--brand-300);
}
.channel-card h3{font-size:18px;margin-bottom:8px;}
.channel-card p{font-size:14.5px;color:var(--ink-2);margin:0;}
.channel-card .channel-meta{display:block;margin-top:14px;font-size:13px;color:var(--brand-600);font-weight:600;}

/* ---------- 双栏：锚点 + 内容 ---------- */
.support-layout{display:grid;grid-template-columns:280px 1fr;gap:40px;align-items:start;}
.anchor-card{
  position:sticky;top:96px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.anchor-card h4{font-size:15px;margin-bottom:14px;color:var(--ink);}
.anchor-list li{margin-bottom:6px;}
.anchor-list a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;
  font-size:14.5px;font-weight:600;color:var(--ink-2);transition:all .18s ease;
}
.anchor-list a i{font-size:12px;color:var(--brand-300);}
.anchor-list a:hover{background:var(--brand-050);color:var(--brand-600);}
.anchor-list a.active{background:var(--brand-050);color:var(--brand-600);}
.anchor-note{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--ink-2);
}
.anchor-cta{
  display:block;margin-top:16px;text-align:center;background:var(--grad);color:#fff;
  border-radius:999px;padding:11px 16px;font-size:14px;font-weight:600;
}
.anchor-cta:hover{color:#fff;filter:brightness(1.06);}

.panel-block{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-1);margin-bottom:32px;scroll-margin-top:96px;
}
.panel-block > h2{font-size:24px;margin-bottom:8px;}
.panel-block > .panel-desc{color:var(--ink-2);font-size:15px;margin-bottom:24px;}

/* 流程步骤 */
.step-list{display:grid;gap:18px;}
.step-item{display:flex;gap:18px;align-items:flex-start;}
.step-num{
  flex:0 0 auto;width:38px;height:38px;border-radius:50%;background:var(--brand-050);
  border:1px solid var(--brand-300);color:var(--brand-600);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
}
.step-body h3{font-size:17px;margin-bottom:6px;}
.step-body p{font-size:14.5px;color:var(--ink-2);margin:0;}

/* FAQ */
.faq-wrap{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:var(--surface);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
  transition:background .18s ease,color .18s ease;
}
.faq-q:hover{background:var(--brand-050);color:var(--brand-600);}
.faq-q .faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--brand-300);
  color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-size:12px;
  transition:transform .25s ease,background .18s ease,color .18s ease;
}
.faq-item.open .faq-q{color:var(--brand-600);}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--brand-500);color:#fff;border-color:var(--brand-500);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 22px 20px;margin:0;font-size:14.8px;color:var(--ink-2);}

/* 表单 */
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-1);scroll-margin-top:96px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-field{display:flex;flex-direction:column;gap:8px;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:14px;font-weight:600;color:var(--ink);}
.form-field input,.form-field select,.form-field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;
  background:var(--bg);font-size:14.5px;color:var(--ink);font-family:inherit;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.form-field textarea{min-height:120px;resize:vertical;line-height:1.7;}
.form-field input:hover,.form-field select:hover,.form-field textarea:hover{border-color:var(--brand-300);}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;background:var(--surface);border-color:var(--brand-500);
  box-shadow:0 0 0 4px rgba(14,124,107,.12);
}
.form-hint{font-size:12.5px;color:var(--ink-2);}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:22px;}
.form-msg{
  display:none;margin-top:18px;padding:12px 16px;border-radius:12px;font-size:14px;
  border-left:4px solid var(--brand-500);background:var(--brand-050);color:var(--brand-600);
}
.form-msg.show{display:block;}
.form-msg.error{border-left-color:var(--accent-500);background:#FDF3EA;color:#8B4E17;}

/* 时效条 */
.sla-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
}
.sla-item{display:flex;gap:14px;align-items:flex-start;}
.sla-item i{color:var(--brand-500);font-size:18px;margin-top:4px;}
.sla-item b{display:block;font-size:16px;}
.sla-item span{font-size:13.5px;color:var(--ink-2);}

/* 图文块 */
.media-block{
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:36px;box-shadow:var(--sh-1);
}
.media-block img{border-radius:var(--r-img);width:100%;aspect-ratio:16/10;object-fit:cover;}
.media-block h2{font-size:26px;margin-bottom:12px;}
.media-block p{font-size:15px;color:var(--ink-2);}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.8px;color:var(--ink-2);margin-bottom:10px;}
.check-list i{color:var(--brand-500);font-size:13px;margin-top:7px;}

/* 底部 CTA */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-lg);padding:52px 40px;
  background:var(--grad);color:#fff;box-shadow:var(--sh-2);
}
.cta-card::after{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;opacity:.08;pointer-events:none;
}
.cta-card .cta-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;}
.cta-card h2{font-size:28px;color:#fff;margin-bottom:10px;}
.cta-card p{color:rgba(255,255,255,.9);margin:0;font-size:15.5px;max-width:640px;}
.cta-card .btn-white{
  display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:999px;
  background:#fff;color:var(--brand-600);font-weight:600;font-size:15px;box-shadow:var(--sh-1);
  transition:all .18s ease;
}
.cta-card .btn-white:hover{color:var(--brand-600);background:var(--brand-050);transform:translateY(-2px);}

/* ---------- Footer ---------- */
.site-footer{background:#0E211D;color:rgba(255,255,255,.78);margin-top:0;position:relative;}
.footer-bar{height:4px;background:var(--grad);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding:56px 24px 40px;}
.site-footer .brand{color:#fff;}
.site-footer .brand:hover{color:#fff;}
.site-footer p{font-size:14px;color:rgba(255,255,255,.7);line-height:1.8;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:12px;}
.footer-contact i{color:var(--brand-300);margin-top:5px;font-size:13px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding-top:20px;padding-bottom:20px;font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 固定转化条 ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(18,35,31,.08);
  opacity:0;visibility:hidden;transform:translateY(100%);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.sticky-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding-top:8px;padding-bottom:8px;}
.sticky-text{font-size:14.5px;color:var(--ink-2);}
.sticky-cta .btn-grad{padding:9px 22px;font-size:14px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .channel-grid{grid-template-columns:repeat(2,1fr);}
  .sla-strip{grid-template-columns:repeat(2,1fr);}
  .page-hero h1{font-size:36px;}
}
@media (max-width:991px){
  .header-inner{height:60px;gap:14px;}
  .brand-text{font-size:15.5px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:fixed;top:70px;left:16px;right:16px;z-index:90;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:var(--surface);border:1px solid var(--line);border-radius:24px;
    padding:16px;box-shadow:var(--sh-panel);
  }
  .main-nav.open{display:flex;}
  .nav-link{padding:12px 14px;font-size:15.5px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:var(--brand-050);}
  .mega{display:none;}
  .support-layout{grid-template-columns:1fr;}
  .anchor-card{position:static;}
  .media-block{grid-template-columns:1fr;padding:28px;}
  .section{padding:56px 0;}
  .page-hero{padding:32px 0 44px;}
  .page-hero h1{font-size:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 24px 32px;}
}
@media (max-width:767px){
  .container{padding-left:18px;padding-right:18px;}
  .channel-grid{grid-template-columns:1fr;}
  .sla-strip{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .hero-badges{gap:14px;}
  .badge-card{flex:1 1 calc(50% - 14px);min-width:0;padding:14px 16px;}
  .badge-card:nth-child(2){transform:none;}
  .panel-block,.form-card{padding:22px;}
  .cta-card{padding:34px 24px;}
  .cta-card h2{font-size:23px;}
  .section-head h2{font-size:24px;}
  .sticky-inner{min-height:52px;}
  .sticky-text{font-size:13px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom .container{flex-direction:column;}
  body{padding-bottom:56px;}
}