/* roulang page: index */
:root{
  --c-bg:#F5F3EE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#FBF9F5;
  --c-line:#E4E0D8;
  --c-ink:#12201C;
  --c-ink-2:#55635E;
  --c-brand:#0E8A6E;
  --c-brand-700:#0A6E58;
  --c-deep:#0A2621;
  --c-accent:#FF8A3D;
  --c-accent-700:#E5732A;
  --c-violet:#6E5BFF;
  --tier-1:#6B7B75;
  --tier-2:#0E8A6E;
  --tier-3:#FF8A3D;
  --tier-4:#6E5BFF;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,38,33,.06);
  --sh-2:0 10px 30px rgba(10,38,33,.10);
  --sh-3:0 18px 50px rgba(0,0,0,.35);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px;}

.ctn{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
@media(min-width:768px){.ctn{padding:0 24px;}}
@media(min-width:1024px){.ctn{padding:0 32px;}}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-accent);color:#fff;padding:10px 18px;border-radius:0 0 var(--r-sm) 0;z-index:200;}
.skip-link:focus{left:0;}

/* 顶部信息条 */
.topbar{background:var(--c-deep);color:#fff;font-size:13px;line-height:36px;height:36px;overflow:hidden;}
.topbar .ctn{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:rgba(255,255,255,.86);}
.topbar-links{display:flex;align-items:center;gap:18px;white-space:nowrap;}
.topbar-links a{color:rgba(255,255,255,.82);transition:color .2s;}
.topbar-links a:hover{color:#fff;}
.topbar-cta{color:var(--c-accent)!important;text-decoration:underline;text-underline-offset:3px;}
.topbar-hide-sm{display:none;}
@media(min-width:768px){.topbar-hide-sm{display:inline;}}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:90;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .25s;}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px;}
@media(min-width:1024px){.header-inner{height:72px;}}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(140deg,var(--c-brand) 0%,var(--c-deep) 100%);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px;letter-spacing:-.5px;box-shadow:var(--sh-1);}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-main{font-size:16px;font-weight:800;color:var(--c-ink);letter-spacing:.2px;}
.logo-sub{font-size:11px;color:var(--c-ink-2);letter-spacing:2px;}
.nav-desktop{display:none;align-items:center;gap:4px;}
@media(min-width:1024px){.nav-desktop{display:flex;}}
.nav-item{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 14px;font-size:15px;color:var(--c-ink-2);transition:color .2s;}
.nav-item::after{content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform .22s;}
.nav-item:hover{color:var(--c-ink);}
.nav-item:hover::after{transform:scaleX(1);}
.nav-item.active{color:var(--c-brand);font-weight:600;}
.nav-item.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:10px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:var(--r-pill);font-size:15px;font-weight:600;transition:transform .18s,background .18s,box-shadow .18s,border-color .18s,color .18s;}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 18px rgba(255,138,61,.28);}
.btn-primary:hover{background:var(--c-accent-700);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border:1px solid var(--c-line);color:var(--c-brand);}
.btn-ghost:hover{border-color:var(--c-brand);background:rgba(14,138,110,.05);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.header-cta{display:none;}
@media(min-width:1024px){.header-cta{display:inline-flex;}}
.burger{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;align-items:center;border-radius:var(--r-sm);}
@media(min-width:1024px){.burger{display:none;}}
.burger span{display:block;width:20px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .25s,opacity .2s;}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.open span:nth-child(2){opacity:0;}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 移动抽屉 */
.drawer{position:fixed;inset:0 0 0 auto;width:min(86vw,340px);background:#fff;z-index:120;transform:translateX(100%);transition:transform .3s ease;display:flex;flex-direction:column;box-shadow:var(--sh-3);}
.drawer.open{transform:translateX(0);}
.drawer-mask{position:fixed;inset:0;background:rgba(10,38,33,.45);z-index:110;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--c-line);}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);font-size:22px;color:var(--c-ink-2);display:flex;align-items:center;justify-content:center;}
.drawer-nav{flex:1;overflow-y:auto;padding:8px 0;}
.drawer-nav a{display:flex;align-items:center;height:44px;padding:0 20px;font-size:15px;color:var(--c-ink-2);border-bottom:1px solid var(--c-line);}
.drawer-nav a.active{color:var(--c-brand);font-weight:600;background:rgba(14,138,110,.05);}
.drawer-foot{padding:16px 20px;border-top:1px solid var(--c-line);display:flex;flex-direction:column;gap:10px;}

/* Hero */
.hero{position:relative;background:var(--c-deep);color:#fff;overflow:hidden;}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:22px 22px;pointer-events:none;}
.hero-inner{position:relative;display:grid;gap:40px;padding:56px 0;}
@media(min-width:1024px){.hero-inner{grid-template-columns:6fr 6fr;gap:56px;padding:104px 0;align-items:center;}}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#9FE3D2;background:rgba(14,138,110,.18);border:1px solid rgba(14,138,110,.4);padding:6px 14px;border-radius:var(--r-pill);}
.hero h1{margin-top:20px;font-size:28px;line-height:1.25;font-weight:800;letter-spacing:.2px;}
@media(min-width:768px){.hero h1{font-size:38px;}}
@media(min-width:1024px){.hero h1{font-size:48px;}}
.hero-sub{margin-top:18px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.76);max-width:34em;}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;}
.btn-outline-light{background:transparent;border:1px solid rgba(255,255,255,.28);color:#fff;}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-1px);}
.hero-stats{margin-top:38px;display:flex;flex-wrap:wrap;gap:14px 40px;}
.hero-stat{display:flex;flex-direction:column;}
.hero-stat b{font-family:var(--font-mono);font-size:24px;font-weight:700;color:#fff;}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.62);}
.hero-visual{position:relative;}
.hero-visual img{width:100%;border-radius:var(--r-lg);box-shadow:var(--sh-3);object-fit:cover;aspect-ratio:16/10;background:#0f332c;}
.hero-badge{position:absolute;right:16px;bottom:16px;background:rgba(10,38,33,.86);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(4px);border-radius:var(--r-md);padding:12px 16px;display:flex;align-items:center;gap:12px;}
.hero-badge .ring{width:38px;height:38px;border-radius:50%;background:var(--tier-4);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;color:#fff;}
.hero-badge .txt b{display:block;font-size:14px;}
.hero-badge .txt span{font-size:12px;color:rgba(255,255,255,.66);}

/* 通用板块 */
.section{padding:56px 0;}
@media(min-width:768px){.section{padding:80px 0;}}
@media(min-width:1024px){.section{padding:104px 0;}}
.section-alt{background:var(--c-surface-alt);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:32px;}
.section-head h2{font-size:22px;font-weight:800;letter-spacing:.2px;}
@media(min-width:768px){.section-head h2{font-size:30px;}}
.section-head p{margin-top:10px;color:var(--c-ink-2);font-size:15px;max-width:40em;}
.text-link{color:var(--c-brand);font-size:14px;font-weight:600;text-decoration:underline;text-underline-offset:4px;transition:color .2s;}
.text-link:hover{color:var(--c-brand-700);}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);background:rgba(14,138,110,.10);color:var(--c-brand);font-size:12px;font-weight:600;}
.tag-violet{background:rgba(110,91,255,.12);color:var(--c-violet);}
.tag-accent{background:rgba(255,138,61,.14);color:var(--c-accent-700);}

/* 权益对比 */
.cmp-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.cmp-grid{display:none;}
@media(min-width:768px){
  .cmp-grid{display:block;}
  .cmp-row{display:grid;grid-template-columns:1.25fr 1fr 1fr 1fr 1fr;align-items:center;border-bottom:1px solid var(--c-line);}
  .cmp-row:last-child{border-bottom:none;}
  .cmp-row>div{padding:16px 18px;font-size:14px;}
  .cmp-row>div+div{border-left:1px solid var(--c-line);}
  .cmp-head{position:sticky;top:72px;background:var(--c-surface-alt);z-index:5;}
  .cmp-head>div{padding:18px;font-size:15px;font-weight:700;}
  .cmp-head .col-title{color:var(--c-ink-2);font-weight:600;font-size:14px;}
  .cmp-head .col-rec{background:rgba(255,138,61,.10);position:relative;}
  .cmp-head .col-rec::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--c-accent);}
  .cmp-row .cell-name{color:var(--c-ink-2);font-size:14px;}
  .cmp-row .cell-rec{background:rgba(255,138,61,.05);}
}
.cmp-price{display:block;font-family:var(--font-mono);font-size:13px;color:var(--c-ink-2);font-weight:500;margin-top:2px;}
.cmp-yes,.cmp-no{display:inline-flex;align-items:center;gap:8px;font-size:13px;}
.cmp-yes{color:var(--c-brand);}
.cmp-no{color:rgba(85,99,94,.5);}
.cmp-ico{width:18px;height:18px;flex:0 0 18px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:11px;color:#fff;}
.cmp-yes .cmp-ico{background:var(--c-brand);}
.cmp-no .cmp-ico{background:rgba(85,99,94,.35);}

.cmp-mobile{display:grid;gap:18px;}
@media(min-width:768px){.cmp-mobile{display:none;}}
.tier-mini{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1);}
.tier-mini.rec{border-color:var(--c-accent);background:#FFF9F4;box-shadow:var(--sh-2);}
.tier-mini h3{font-size:17px;font-weight:700;display:flex;align-items:center;justify-content:space-between;}
.tier-mini .mini-list{margin:14px 0 16px;display:grid;gap:8px;}
.tier-mini .mini-list li{font-size:14px;color:var(--c-ink-2);display:flex;gap:8px;align-items:flex-start;}
.tier-mini .mini-list li.off{opacity:.45;}
.tier-mini .mini-list i{width:16px;height:16px;flex:0 0 16px;border-radius:50%;background:var(--c-brand);color:#fff;font-size:10px;font-style:normal;display:inline-flex;align-items:center;justify-content:center;margin-top:6px;}
.tier-mini .mini-list li.off i{background:rgba(85,99,94,.4);}
.cmp-note{margin-top:20px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-ink-2);}

/* 等级亮点 */
.tier-grid{display:grid;gap:20px;}
@media(min-width:640px){.tier-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.tier-grid{grid-template-columns:repeat(4,1fr);gap:24px;}}
.tier-card{position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:26px 22px 22px;box-shadow:var(--sh-1);transition:transform .22s,box-shadow .22s,border-color .22s;overflow:hidden;display:flex;flex-direction:column;}
.tier-card::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--bar,var(--tier-1));}
.tier-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand);}
.tier-card.featured{box-shadow:var(--sh-2);}
@media(min-width:1024px){.tier-card.featured{transform:translateY(-8px);}}
.tier-card.featured:hover{transform:translateY(-10px);}
.tier-badge{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;background:var(--bar,var(--tier-1));}
.tier-card h3{margin-top:16px;font-size:19px;font-weight:700;}
.tier-card .tier-desc{margin-top:6px;font-size:13px;color:var(--c-ink-2);}
.tier-points{margin-top:18px;display:grid;gap:10px;flex:1;}
.tier-points li{font-size:14px;color:var(--c-ink-2);display:flex;gap:9px;align-items:flex-start;line-height:1.6;}
.tier-points li span.dot{width:6px;height:6px;border-radius:50%;background:var(--c-brand);margin-top:9px;flex:0 0 6px;}
.progress-wrap{margin-top:20px;}
.progress-wrap .lbl{display:flex;justify-content:space-between;font-size:12px;color:var(--c-ink-2);margin-bottom:6px;}
.progress{height:6px;border-radius:var(--r-pill);background:var(--c-line);overflow:hidden;}
.progress i{display:block;height:100%;border-radius:var(--r-pill);background:var(--bar,var(--c-brand));}
.tier-card .btn{margin-top:20px;width:100%;}

/* 内容预览轨道 */
.rail-wrap{position:relative;}
.rail{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 18px;scrollbar-width:none;}
.rail::-webkit-scrollbar{display:none;}
.rail-item{flex:0 0 82%;scroll-snap-align:start;}
@media(min-width:640px){.rail-item{flex:0 0 46%;}}
@media(min-width:1024px){.rail-item{flex:0 0 30%;}}
.media-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s,box-shadow .22s,border-color .22s;height:100%;display:flex;flex-direction:column;}
.media-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand);}
.media-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EDEAE3;}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.media-card:hover .media-thumb img{transform:scale(1.04);}
.media-thumb .tag{position:absolute;left:12px;top:12px;background:#fff;box-shadow:var(--sh-1);}
.media-body{padding:18px;display:flex;flex-direction:column;flex:1;}
.media-body h3{font-size:16px;font-weight:700;line-height:1.5;}
.media-body p{margin-top:8px;font-size:14px;color:var(--c-ink-2);line-height:1.7;flex:1;}
.media-meta{margin-top:14px;display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--c-ink-2);}
.lock-layer{position:absolute;inset:0;background:rgba(10,38,33,.62);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:#fff;font-size:13px;}
.lock-layer .lock-ico{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.42);display:flex;align-items:center;justify-content:center;font-size:16px;}
.rail-arrows{display:none;}
@media(min-width:1280px){.rail-arrows{display:flex;gap:10px;}}
.rail-arrow{width:42px;height:42px;border-radius:50%;border:1px solid var(--c-line);background:#fff;display:flex;align-items:center;justify-content:center;color:var(--c-ink-2);transition:border-color .2s,color .2s,box-shadow .2s;}
.rail-arrow:hover{border-color:var(--c-brand);color:var(--c-brand);box-shadow:var(--sh-1);}
.rail-progress{height:4px;border-radius:var(--r-pill);background:var(--c-line);max-width:320px;margin:6px auto 0;overflow:hidden;}
.rail-progress i{display:block;height:100%;background:var(--c-brand);border-radius:var(--r-pill);transition:width .2s;}

/* 最新信息 */
.news-grid{display:grid;gap:22px;}
@media(min-width:1024px){.news-grid{grid-template-columns:1.15fr 1fr;gap:28px;}}
.news-lead{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s,box-shadow .22s,border-color .22s;}
.news-lead:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand);}
.news-lead-media{aspect-ratio:16/10;background:#EDEAE3;overflow:hidden;}
.news-lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.news-lead:hover .news-lead-media img{transform:scale(1.03);}
.news-lead-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.news-lead-body h3{margin-top:14px;font-size:20px;font-weight:700;line-height:1.5;}
.news-lead-body p{margin-top:10px;font-size:15px;color:var(--c-ink-2);flex:1;}
.news-meta{margin-top:18px;display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--c-ink-2);}
.news-list{display:grid;gap:0;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;}
.news-row{display:flex;gap:14px;padding:18px 20px;border-bottom:1px solid var(--c-line);transition:background .2s;}
.news-row:last-child{border-bottom:none;}
.news-row:hover{background:var(--c-surface-alt);}
.news-row .thumb{width:78px;height:60px;flex:0 0 78px;border-radius:var(--r-sm);overflow:hidden;background:#EDEAE3;}
.news-row .thumb img{width:100%;height:100%;object-fit:cover;}
.news-row h4{font-size:15px;font-weight:600;line-height:1.5;}
.news-row p{margin-top:5px;font-size:13px;color:var(--c-ink-2);overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
.news-row .meta{margin-top:8px;font-size:12px;color:var(--c-ink-2);display:flex;gap:10px;align-items:center;flex-wrap:wrap;}
.empty-state{background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-lg);padding:52px 24px;text-align:center;}
.empty-state .ico{width:56px;height:56px;border-radius:50%;background:rgba(14,138,110,.08);color:var(--c-brand);display:flex;align-items:center;justify-content:center;font-size:22px;margin:0 auto 14px;}
.empty-state p{color:var(--c-ink-2);font-size:15px;}
.empty-state .btn{margin-top:18px;}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:880px;}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;transition:border-color .2s,box-shadow .2s;}
.faq-item.open{border-color:var(--c-brand);box-shadow:var(--sh-1);background:var(--c-surface-alt);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:16px;font-weight:600;text-align:left;color:var(--c-ink);}
.faq-item.open .faq-q{color:var(--c-brand);}
.faq-q .ind{width:24px;height:24px;flex:0 0 24px;border-radius:50%;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--c-ink-2);transition:transform .25s,border-color .25s,color .25s;}
.faq-item.open .ind{transform:rotate(45deg);border-color:var(--c-brand);color:var(--c-brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a .inner{padding:0 22px 20px 22px;position:relative;font-size:15px;color:var(--c-ink-2);line-height:1.85;}
.faq-a .inner::before{content:"";position:absolute;left:22px;top:0;bottom:20px;width:3px;border-radius:2px;background:var(--c-brand);}
.faq-a .inner p{padding-left:18px;}
.faq-foot{margin-top:22px;font-size:14px;color:var(--c-ink-2);}

/* CTA */
.cta{background:var(--c-deep);color:#fff;position:relative;overflow:hidden;}
.cta::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:22px 22px;}
.cta-inner{position:relative;max-width:720px;margin:0 auto;text-align:center;padding:56px 0;}
@media(min-width:1024px){.cta-inner{padding:88px 0;}}
.cta h2{font-size:24px;font-weight:800;}
@media(min-width:768px){.cta h2{font-size:30px;}}
.cta .lead{margin-top:14px;font-size:15px;color:rgba(255,255,255,.74);}
.cta-form{margin-top:30px;display:flex;flex-direction:column;gap:12px;align-items:stretch;}
@media(min-width:640px){.cta-form{flex-direction:row;align-items:flex-start;}}
.field{flex:1;text-align:left;}
.field input{width:100%;height:48px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:#fff;padding:0 20px;font-size:15px;transition:border-color .2s,box-shadow .2s;outline:none;}
.field input::placeholder{color:rgba(255,255,255,.42);}
.field input:focus{border-color:var(--c-brand);box-shadow:0 0 0 2px rgba(14,138,110,.35);}
.field.error input{border-color:#FF6B6B;box-shadow:0 0 0 2px rgba(255,107,107,.28);}
.field .err{display:none;margin-top:8px;padding-left:20px;font-size:12px;color:#FF9A9A;}
.field.error .err{display:block;}
.cta-assure{margin-top:22px;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 22px;font-size:13px;color:rgba(255,255,255,.7);}
.cta-assure span{display:inline-flex;align-items:center;gap:7px;}
.cta-assure i{width:6px;height:6px;border-radius:50%;background:var(--c-accent);font-style:normal;}
.agree{margin-top:20px;display:flex;align-items:flex-start;justify-content:center;gap:9px;font-size:13px;color:rgba(255,255,255,.66);text-align:left;}
.agree input{width:16px;height:16px;margin-top:4px;accent-color:var(--c-accent);}
.agree a{color:#9FE3D2;text-decoration:underline;text-underline-offset:3px;}

/* 页脚 */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.72);font-size:14px;}
.footer-top{display:grid;gap:32px;padding:56px 0 40px;}
@media(min-width:640px){.footer-top{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-top{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:72px 0 48px;}}
.footer-brand .logo-main{color:#fff;}
.footer-brand .logo-sub{color:rgba(255,255,255,.5);}
.footer-brand p{margin-top:16px;line-height:1.9;max-width:30em;color:rgba(255,255,255,.62);}
.footer-col h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-col ul{display:grid;gap:2px;}
.footer-col a{display:inline-flex;align-items:center;min-height:34px;color:rgba(255,255,255,.66);transition:color .2s,padding-left .2s;}
.footer-col a:hover{color:#fff;padding-left:4px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 32px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:16px;}
.footer-bottom a:hover{color:#fff;}
.disclaimer{margin-top:10px;font-size:12px;color:rgba(255,255,255,.4);line-height:1.8;}

.to-top{position:fixed;right:18px;bottom:18px;width:44px;height:44px;border-radius:50%;background:var(--c-deep);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-2);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s,background .2s;z-index:80;font-size:16px;}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{background:var(--c-brand);}

/* roulang page: article */
:root{
  --c-bg:#F5F3EE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#FBF9F5;
  --c-line:#E4E0D8;
  --c-ink:#12201C;
  --c-ink-2:#55635E;
  --c-brand:#0E8A6E;
  --c-brand-700:#0A6E58;
  --c-deep:#0A2621;
  --c-accent:#FF8A3D;
  --c-accent-700:#E5732A;
  --c-violet:#6E5BFF;
  --tier-1:#6B7B75; --tier-2:#0E8A6E; --tier-3:#FF8A3D; --tier-4:#6E5BFF;
  --r-sm:8px; --r-md:14px; --r-lg:20px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,38,33,.06);
  --sh-2:0 10px 30px rgba(10,38,33,.10);
  --sh-3:0 18px 50px rgba(0,0,0,.35);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:var(--font-sans);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button{font-family:inherit;}
input,button,textarea{font-size:100%;}
input:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;}
::selection{background:rgba(14,138,110,.18);}

.ctn{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
@media(min-width:768px){.ctn{padding:0 24px;}}
@media(min-width:1024px){.ctn{padding:0 32px;}}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-deep);color:#fff;padding:10px 16px;border-radius:0 0 var(--r-sm) 0;z-index:200;}
.skip-link:focus{left:0;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-deep);color:#EAF3EF;font-size:13px;}
.topbar-inner{height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-note{margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:rgba(255,255,255,.78);}
.topbar-links{display:flex;align-items:center;gap:18px;flex-shrink:0;}
.topbar-links a{color:rgba(255,255,255,.82);}
.topbar-links a:hover{color:#fff;}
.topbar-cta{color:var(--c-accent)!important;border-bottom:1px solid var(--c-accent);padding-bottom:1px;}
.topbar-links a:not(.topbar-cta):nth-child(1){display:none;}
@media(min-width:640px){.topbar-links a:not(.topbar-cta):nth-child(1){display:inline;}}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--sh-1);}
.header-inner{height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
@media(min-width:1024px){.header-inner{height:72px;}}
.logo{display:flex;align-items:center;gap:10px;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--c-brand),var(--c-brand-700));
  color:#fff;display:grid;place-items:center;font-size:14px;font-weight:800;
  letter-spacing:.5px;box-shadow:0 6px 14px rgba(14,138,110,.28);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-main{font-size:16px;font-weight:800;color:var(--c-ink);}
.logo-sub{font-size:11px;color:var(--c-ink-2);letter-spacing:1.5px;}
.nav-desktop{display:none;align-items:center;gap:2px;}
@media(min-width:1024px){.nav-desktop{display:flex;}}
.nav-item{
  position:relative;padding:10px 14px;font-size:15px;color:var(--c-ink-2);
  border-radius:var(--r-sm);
}
.nav-item:hover{color:var(--c-brand);}
.nav-item.active{color:var(--c-brand);font-weight:600;}
.nav-item.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--c-brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;}
.header-cta{display:none;}
@media(min-width:1024px){.header-cta{display:inline-flex;}}
.burger{
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  width:44px;height:44px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-sm);cursor:pointer;transition:border-color .2s,box-shadow .2s;
}
.burger:hover{border-color:var(--c-brand);}
.burger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s;}
@media(min-width:1024px){.burger{display:none;}}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,38,33,.5);opacity:0;pointer-events:none;
  transition:opacity .28s ease;z-index:90;
}
.drawer-mask.show{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,320px);background:#fff;
  transform:translateX(101%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  z-index:100;display:flex;flex-direction:column;box-shadow:var(--sh-3);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--c-line);}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-sm);cursor:pointer;color:var(--c-ink-2);font-size:18px;line-height:1;}
.drawer-close:hover{border-color:var(--c-brand);color:var(--c-brand);}
.drawer-nav{padding:8px 0;flex:1;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;min-height:44px;padding:0 20px;font-size:15px;
  color:var(--c-ink-2);border-left:3px solid transparent;
}
.drawer-nav a:hover{background:var(--c-surface-alt);color:var(--c-brand);}
.drawer-nav a.active{color:var(--c-brand);font-weight:600;border-left-color:var(--c-brand);background:var(--c-surface-alt);}
.drawer-foot{padding:16px;border-top:1px solid var(--c-line);}
.drawer-hint{font-size:13px;color:var(--c-ink-2);margin:0 0 12px;}

/* ---------- 按钮与标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;
  padding:0 24px;border:1px solid transparent;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,138,61,.28);}
.btn-primary:hover{background:var(--c-accent-700);transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,138,61,.32);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 3px 10px rgba(255,138,61,.24);}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-brand);}
.btn-ghost:hover{border-color:var(--c-brand);background:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(14,138,110,.10);color:var(--c-brand-700);font-size:12px;font-weight:600;
}
.chip-violet{background:rgba(110,91,255,.12);color:#4B3BD1;}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{
  background:var(--c-surface-alt);border-bottom:1px solid var(--c-line);
}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:12px 0;font-size:13px;color:var(--c-ink-2);}
.breadcrumb a{color:var(--c-ink-2);}
.breadcrumb a:hover{color:var(--c-brand);}
.breadcrumb .sep{color:#B9B4A9;}
.breadcrumb .current{
  color:var(--c-ink);font-weight:600;max-width:22ch;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:1fr;gap:40px;
  padding-top:36px;padding-bottom:72px;
}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:48px;padding-top:48px;padding-bottom:96px;}
}
.article-main{min-width:0;}
.article-body{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:24px;max-width:820px;}
@media(min-width:768px){.article-body{padding:40px;}}
@media(min-width:1024px){.article-body{padding:48px;}}

.article-head{border-bottom:1px solid var(--c-line);padding-bottom:24px;margin-bottom:32px;}
.article-head h1{
  font-size:28px;font-weight:800;letter-spacing:-.3px;margin:14px 0 16px;color:var(--c-ink);
}
@media(min-width:768px){.article-head h1{font-size:34px;}}
@media(min-width:1024px){.article-head h1{font-size:38px;line-height:1.25;}}
.meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--c-ink-2);}
.meta .dot{width:4px;height:4px;border-radius:50%;background:#C6C0B4;}

/* ---------- 正文排版 ---------- */
.prose-cn{font-size:17px;line-height:1.9;color:var(--c-ink);word-wrap:break-word;}
.prose-cn p{margin:0 0 1.2em;}
.prose-cn > p:first-child{font-size:17.5px;color:#1B2A25;}
.prose-cn h2{
  font-size:23px;font-weight:700;margin:1.9em 0 .7em;padding-left:12px;
  border-left:4px solid var(--c-brand);line-height:1.4;
}
.prose-cn h3{font-size:18px;font-weight:700;margin:1.6em 0 .6em;}
.prose-cn h4{font-size:16px;font-weight:700;margin:1.4em 0 .5em;color:var(--c-ink-2);}
.prose-cn ul,.prose-cn ol{margin:0 0 1.3em;padding-left:1.3em;}
.prose-cn ul li{list-style:disc;margin-bottom:.5em;}
.prose-cn ol li{list-style:decimal;margin-bottom:.5em;}
.prose-cn li::marker{color:var(--c-brand);}
.prose-cn blockquote{
  margin:1.5em 0;padding:16px 20px;background:var(--c-surface-alt);
  border-left:3px solid var(--c-accent);border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--c-ink-2);
}
.prose-cn blockquote p:last-child{margin-bottom:0;}
.prose-cn img{border-radius:12px;margin:1.5em 0;}
.prose-cn figure{margin:1.5em 0;}
.prose-cn figcaption{font-size:13px;color:var(--c-ink-2);text-align:center;margin-top:10px;}
.prose-cn a{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px;}
.prose-cn a:hover{color:var(--c-brand-700);}
.prose-cn strong{font-weight:700;color:#0B1F1A;}
.prose-cn hr{border:0;border-top:1px solid var(--c-line);margin:2em 0;}
.prose-cn code{
  font-family:var(--font-mono);font-size:14px;background:#EFEDE7;
  padding:2px 6px;border-radius:6px;color:#2A4A41;
}
.prose-cn pre{
  background:var(--c-deep);color:#DDEAE5;padding:18px;border-radius:var(--r-md);
  overflow-x:auto;font-family:var(--font-mono);font-size:14px;line-height:1.7;margin:1.5em 0;
}
.prose-cn pre code{background:none;color:inherit;padding:0;}
.prose-cn table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;}
.prose-cn th,.prose-cn td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;vertical-align:top;}
.prose-cn th{background:var(--c-surface-alt);font-weight:600;}
.prose-cn tbody tr:hover{background:#FCFBF8;}

.empty-state{
  text-align:center;padding:56px 20px;background:var(--c-surface-alt);
  border:1px dashed var(--c-line);border-radius:var(--r-md);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:50%;
  background:rgba(14,138,110,.10);color:var(--c-brand);display:grid;place-items:center;
  font-size:24px;font-weight:700;
}
.empty-state p{color:var(--c-ink-2);margin-bottom:20px;}

/* ---------- 文末 ---------- */
.article-foot{margin-top:36px;padding-top:24px;border-top:1px solid var(--c-line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px;}
.notice{
  background:var(--c-surface-alt);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:16px 18px;font-size:13px;line-height:1.8;color:var(--c-ink-2);margin-bottom:24px;
}
.notice strong{color:var(--c-ink);}
.foot-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 相关推荐 ---------- */
.related{margin-top:56px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.section-head h2{font-size:24px;font-weight:800;letter-spacing:-.2px;}
@media(min-width:768px){.section-head h2{font-size:28px;}}
.section-head .more{font-size:14px;color:var(--c-brand);font-weight:600;}
.section-head .more:hover{color:var(--c-brand-700);text-decoration:underline;}
.related-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:640px){.related-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr);}}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand);}
.card-cover{position:relative;aspect-ratio:16/10;background:#EDEAE3;overflow:hidden;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-cover img{transform:scale(1.04);}
.card-cover .tag{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;font-weight:700;line-height:1.5;}
.card-body p{font-size:14px;color:var(--c-ink-2);line-height:1.75;}
.card-meta{margin-top:auto;font-size:13px;color:var(--c-ink-2);display:flex;align-items:center;gap:8px;}

/* ---------- 侧栏 ---------- */
.article-aside{display:flex;flex-direction:column;gap:20px;}
@media(min-width:1024px){.article-aside{position:sticky;top:96px;align-self:start;}}
.aside-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);
}
.aside-card h3{font-size:16px;font-weight:700;margin-bottom:12px;}
.aside-card p{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin-bottom:16px;}
.aside-member{border:1px solid rgba(255,138,61,.45);background:linear-gradient(180deg,#FFF8F2,#FFFFFF);}
.aside-member h3{color:var(--c-accent-700);}
.aside-member .mini-points{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.aside-member .mini-points li{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2);
}
.aside-member .mini-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);flex-shrink:0;
}
.hot-list li{border-bottom:1px solid var(--c-line);}
.hot-list li:last-child{border-bottom:0;}
.hot-list a{
  display:block;padding:12px 0;font-size:14px;line-height:1.6;color:var(--c-ink);
}
.hot-list a:hover{color:var(--c-brand);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--c-deep);color:#fff;overflow:hidden;
  padding:64px 0;
}
@media(min-width:768px){.cta-band{padding:88px 0;}}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:radial-gradient(#FFFFFF 1px,transparent 1px);
  background-size:18px 18px;
}
.cta-inner{position:relative;max-width:720px;margin:0 auto;text-align:center;}
.cta-inner h2{font-size:26px;font-weight:800;margin-bottom:14px;}
@media(min-width:768px){.cta-inner h2{font-size:32px;}}
.cta-inner > p{color:rgba(255,255,255,.75);font-size:16px;margin-bottom:28px;}
.cta-form{display:flex;flex-direction:column;gap:12px;margin-bottom:16px;}
@media(min-width:640px){.cta-form{flex-direction:row;}}
.cta-form input[type="tel"]{
  flex:1;height:48px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
  color:#fff;transition:border-color .2s,box-shadow .2s,background .2s;
}
.cta-form input[type="tel"]::placeholder{color:rgba(255,255,255,.45);}
.cta-form input[type="tel"]:focus{
  outline:none;border-color:var(--c-accent);background:rgba(255,255,255,.12);
  box-shadow:0 0 0 3px rgba(255,138,61,.22);
}
.cta-form input[type="tel"].err{border-color:#FF6B6B;}
.form-msg{min-height:20px;font-size:13px;margin-bottom:12px;}
.form-msg.err{color:#FF9B8A;}
.form-msg.ok{color:#7FE3C4;}
.cta-points{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 24px;margin-bottom:24px;}
.cta-points li{font-size:13px;color:rgba(255,255,255,.78);display:flex;align-items:center;gap:8px;}
.cta-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-brand);flex-shrink:0;
}
.agree{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);cursor:pointer;}
.agree input{width:16px;height:16px;accent-color:var(--c-accent);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.72);padding-top:64px;}
.site-footer .logo-main{color:#fff;}
.site-footer .logo-sub{color:rgba(255,255,255,.55);}
.footer-top{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px;}
@media(min-width:640px){.footer-top{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-top{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;}}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:16px;max-width:34ch;color:rgba(255,255,255,.62);}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col ul a:hover{color:#fff;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:16px;}
.footer-bottom .links a:hover{color:#fff;}
.disclaimer{font-size:12px;line-height:1.8;color:rgba(255,255,255,.42);padding-bottom:32px;margin:0;}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:20px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:var(--c-brand);color:#fff;border:0;cursor:pointer;display:grid;place-items:center;
  box-shadow:0 10px 26px rgba(10,38,33,.28);opacity:0;visibility:hidden;
  transform:translateY(10px);transition:all .25s ease;z-index:70;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-brand-700);}

/* roulang page: category1 */
:root{
  --c-bg:#F5F3EE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#FBF9F5;
  --c-line:#E4E0D8;
  --c-ink:#12201C;
  --c-ink-2:#55635E;
  --c-brand:#0E8A6E;
  --c-brand-700:#0A6E58;
  --c-deep:#0A2621;
  --c-accent:#FF8A3D;
  --c-accent-700:#E5732A;
  --c-violet:#6E5BFF;
  --tier-1:#6B7B75;
  --tier-2:#0E8A6E;
  --tier-3:#FF8A3D;
  --tier-4:#6E5BFF;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,38,33,.06);
  --sh-2:0 10px 30px rgba(10,38,33,.10);
  --sh-3:0 18px 50px rgba(0,0,0,.35);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"SFMono-Regular",ui-monospace,"JetBrains Mono",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--c-bg);
  color:var(--c-ink);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{list-style:none;padding:0}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-brand);color:#fff;padding:10px 18px;border-radius:0 0 var(--r-sm) 0;z-index:200}
.skip-link:focus{left:0}

.ctn{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media(min-width:768px){.ctn{padding:0 24px}}
@media(min-width:1024px){.ctn{padding:0 32px}}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
@media(max-width:1023px){.header-inner{height:60px}}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(140deg,var(--c-brand),var(--c-brand-700));color:#fff;font-weight:800;font-size:14px;letter-spacing:.5px;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(14,138,110,.28)}
.logo-text{display:flex;flex-direction:column;line-height:1.18}
.logo-main{font-weight:800;font-size:16px;color:var(--c-ink);letter-spacing:.2px}
.logo-sub{font-size:11px;color:var(--c-ink-2);letter-spacing:.8px}
.nav-desktop{display:none;gap:4px;align-items:center}
@media(min-width:1024px){.nav-desktop{display:flex}}
.nav-item{position:relative;padding:10px 14px;font-size:15px;color:var(--c-ink-2);border-radius:var(--r-sm);transition:color .2s ease}
.nav-item::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.nav-item:hover{color:var(--c-ink)}
.nav-item:hover::after{transform:scaleX(1)}
.nav-item.active{color:var(--c-brand);font-weight:600}
.nav-item.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px}
@media(max-width:1023px){.header-cta{display:none}}
.burger{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:0 11px;background:#fff;border:1px solid var(--c-line);border-radius:12px;transition:border-color .2s ease,background .2s ease}
.burger:hover{border-color:var(--c-brand)}
.burger span{display:block;height:2px;border-radius:2px;background:var(--c-ink)}
@media(min-width:1024px){.burger{display:none}}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-pill);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(255,138,61,.28)}
.btn-primary:hover{background:var(--c-accent-700);transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,138,61,.34)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(255,138,61,.24)}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-brand-700)}
.btn-ghost:hover{border-color:var(--c-brand);background:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
.btn-light:hover{border-color:var(--c-brand);color:var(--c-brand-700);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.link-more{color:var(--c-brand);font-weight:600;border-bottom:1px solid rgba(14,138,110,.35);padding-bottom:2px;transition:border-color .2s ease,color .2s ease}
.link-more:hover{color:var(--c-brand-700);border-color:var(--c-brand-700)}

/* ---------- Drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(10,38,33,.45);z-index:80;opacity:0;pointer-events:none;transition:opacity .25s ease}
.drawer-mask.show{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;height:100%;width:min(320px,86vw);background:#fff;z-index:90;transform:translateX(103%);transition:transform .28s ease;display:flex;flex-direction:column;padding:18px;box-shadow:var(--sh-3)}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;color:var(--c-ink-2)}
.drawer-close:hover{border-color:var(--c-brand);color:var(--c-brand)}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;height:44px;font-size:15.5px;color:var(--c-ink-2);border-bottom:1px solid var(--c-line)}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-brand);font-weight:600}
.drawer-nav a.active::after{content:"当前";font-size:12px;color:var(--c-brand);font-weight:500}
.drawer-cta{margin-top:auto;width:100%}

/* ---------- Hero ---------- */
.page-hero{position:relative;background:var(--c-deep);color:#fff;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:22px 22px;pointer-events:none}
.hero-inner{position:relative;display:grid;gap:36px;padding:44px 0 60px}
@media(min-width:1024px){.hero-inner{grid-template-columns:6fr 6fr;align-items:center;gap:52px;padding:64px 0 84px}}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.66);flex-wrap:wrap}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.5}
.crumb .now{color:#fff;font-weight:600}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;margin-top:20px;padding:6px 14px;border-radius:var(--r-pill);background:rgba(110,91,255,.18);border:1px solid rgba(110,91,255,.42);color:#CFC7FF;font-size:12.5px;font-weight:600}
.hero-title{margin-top:18px;font-size:28px;line-height:1.28;font-weight:800;letter-spacing:.2px}
@media(min-width:640px){.hero-title{font-size:36px}}
@media(min-width:1024px){.hero-title{font-size:46px;line-height:1.22}}
.hero-sub{margin-top:16px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.78);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14)}
.hero-stat b{display:block;font-family:var(--font-mono);font-size:24px;font-weight:700;color:#fff;line-height:1.2}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.62)}
.hero-media{position:relative}
.hero-media img{border-radius:var(--r-lg);width:100%;box-shadow:var(--sh-3);aspect-ratio:16/10;object-fit:cover;background:rgba(255,255,255,.06)}
.hero-badge{position:absolute;right:14px;bottom:-16px;display:flex;align-items:center;gap:10px;background:#fff;color:var(--c-ink);border-radius:var(--r-md);padding:12px 18px;box-shadow:var(--sh-2)}
.hero-badge .ring{width:38px;height:38px;border-radius:50%;background:var(--tier-4);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px}
.hero-badge b{display:block;font-size:14px;line-height:1.3}
.hero-badge span{font-size:12px;color:var(--c-ink-2)}

/* ---------- Sections ---------- */
.section{padding:56px 0}
@media(min-width:768px){.section{padding:80px 0}}
@media(min-width:1024px){.section{padding:104px 0}}
.section-alt{background:var(--c-surface-alt);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:720px}
.section-head h2{font-size:22px;font-weight:800;letter-spacing:.2px;line-height:1.35}
@media(min-width:768px){.section-head h2{font-size:30px}}
.section-head p{margin-top:12px;color:var(--c-ink-2);font-size:15.5px}
.section-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}

/* ---------- Cards & Grid ---------- */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:1fr}
@media(min-width:640px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr)}}
.grid-4{grid-template-columns:1fr}
@media(min-width:640px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.grid-4{grid-template-columns:repeat(4,1fr)}}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand)}
.bene-card{padding:24px}
.bene-card .ico{width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:18px;background:rgba(14,138,110,.10);color:var(--c-brand);border:1px solid rgba(14,138,110,.18)}
.bene-card h3{margin-top:16px;font-size:17.5px;font-weight:700}
.bene-card p{margin-top:8px;font-size:14.5px;color:var(--c-ink-2);line-height:1.75}

/* ---------- Collapsible table ---------- */
.collapse-panel{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;margin-top:28px}
.collapse-btn{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:16.5px;font-weight:700;text-align:left;transition:background .2s ease}
.collapse-btn:hover{background:var(--c-surface-alt)}
.collapse-btn .chev{color:var(--c-brand);transition:transform .25s ease}
.collapse-btn[aria-expanded="true"] .chev{transform:rotate(180deg)}
.collapse-body{max-height:0;overflow:hidden;transition:max-height .3s ease}
.collapse-body .inner{padding:4px 24px 28px}
.bene-table-wrap{overflow-x:auto}
.bene-table{width:100%;border-collapse:collapse;font-size:15px;min-width:640px}
.bene-table th,.bene-table td{padding:14px 16px;border-bottom:1px solid var(--c-line);text-align:center}
.bene-table th:first-child,.bene-table td:first-child{text-align:left;color:var(--c-ink)}
.bene-table thead th{background:var(--c-surface-alt);font-size:13.5px;font-weight:700;color:var(--c-ink-2);white-space:nowrap}
.bene-table thead th.tier-2{color:var(--tier-2)}
.bene-table thead th.tier-3{color:var(--tier-3)}
.bene-table thead th.tier-4{color:var(--tier-4)}
.bene-table tbody tr:hover{background:var(--c-surface-alt)}
.ok{color:var(--c-brand)}
.no{color:rgba(85,99,94,.4)}
.bene-cards{display:none;gap:16px}
.bene-level{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);padding:18px}
.bene-level .bar{height:4px;border-radius:4px;margin:-18px -18px 16px;border-radius:var(--r-md) var(--r-md) 0 0}
.bene-level h4{font-size:16.5px;font-weight:700}
.bene-level ul{margin-top:12px;display:grid;gap:10px}
.bene-level li{display:flex;gap:10px;font-size:14.5px;color:var(--c-ink-2)}
.bene-level li i{margin-top:5px}
@media(max-width:767px){
  .bene-table-wrap{display:none}
  .bene-cards{display:grid}
  .collapse-body{max-height:none!important}
}

/* ---------- Tips ---------- */
.tip{display:flex;gap:16px;background:var(--c-surface-alt);border:1px solid var(--c-line);border-left:3px solid var(--c-accent);border-radius:var(--r-md);padding:22px 24px}
.tip i{color:var(--c-accent);font-size:18px;margin-top:5px}
.tip h3{font-size:16.5px;font-weight:700}
.tip p{margin-top:8px;font-size:14.8px;color:var(--c-ink-2)}

/* ---------- Steps ---------- */
.steps{display:grid;gap:18px;margin-top:34px;counter-reset:step}
@media(min-width:640px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand)}
.step .num{counter-increment:step;width:40px;height:40px;border-radius:50%;background:var(--c-deep);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-weight:700;font-size:16px}
.step .num::before{content:counter(step)}
.step h3{margin-top:16px;font-size:17px;font-weight:700}
.step p{margin-top:8px;font-size:14.5px;color:var(--c-ink-2)}

/* ---------- FAQ ---------- */
.faq{margin-top:32px;display:grid;gap:1px;background:var(--c-line);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden}
.faq-item{background:var(--c-surface)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;font-size:16px;font-weight:600;text-align:left;transition:background .2s ease,color .2s ease}
.faq-q:hover{background:var(--c-surface-alt);color:var(--c-brand-700)}
.faq-q i{color:var(--c-brand);transition:transform .25s ease;flex-shrink:0}
.faq-q[aria-expanded="true"]{color:var(--c-brand-700);background:rgba(14,138,110,.06);box-shadow:inset 3px 0 0 var(--c-brand)}
.faq-q[aria-expanded="true"] i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{padding:0 22px 22px;font-size:15px;color:var(--c-ink-2)}
.faq-foot{margin-top:22px;font-size:14.5px;color:var(--c-ink-2)}

/* ---------- CTA ---------- */
.cta{position:relative;background:var(--c-deep);color:#fff;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:22px 22px}
.cta-inner{position:relative;max-width:720px;margin:0 auto;text-align:center;padding:64px 0}
@media(min-width:1024px){.cta-inner{padding:88px 0}}
.cta-inner h2{font-size:24px;font-weight:800}
@media(min-width:768px){.cta-inner h2{font-size:32px}}
.cta-inner p{margin-top:14px;color:rgba(255,255,255,.76);font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}
.cta-points{display:flex;flex-wrap:wrap;gap:14px 26px;justify-content:center;margin-top:30px;font-size:14px;color:rgba(255,255,255,.72)}
.cta-points span{display:inline-flex;align-items:center;gap:8px}
.cta-points i{color:var(--c-brand)}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.72);padding:56px 0 28px;font-size:14.5px}
.footer-top{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:640px){.footer-top{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-top{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-brand p{margin-top:16px;max-width:32em;line-height:1.85;font-size:14px}
.footer-brand .logo-main{color:#fff}
.footer-brand .logo-sub{color:rgba(255,255,255,.6)}
.footer-col h3{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:rgba(255,255,255,.7)}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;justify-content:space-between;font-size:13.5px}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:14px}
.footer-bottom .links a:hover{color:#fff;text-decoration:underline}
.disclaimer{margin-top:18px;font-size:12.5px;color:rgba(255,255,255,.5);line-height:1.8}

/* ---------- To top ---------- */
.to-top{position:fixed;right:18px;bottom:22px;width:46px;height:46px;border-radius:50%;background:var(--c-brand);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-2);opacity:0;pointer-events:none;transition:opacity .25s ease,transform .2s ease;z-index:70}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--c-brand-700);transform:translateY(-2px)}

/* roulang page: category2 */
:root{
  --c-bg:#F5F3EE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#FBF9F5;
  --c-line:#E4E0D8;
  --c-ink:#12201C;
  --c-ink-2:#55635E;
  --c-brand:#0E8A6E;
  --c-brand-700:#0A6E58;
  --c-deep:#0A2621;
  --c-accent:#FF8A3D;
  --c-accent-700:#E5732A;
  --c-violet:#6E5BFF;
  --tier-1:#6B7B75;
  --tier-2:#0E8A6E;
  --tier-3:#FF8A3D;
  --tier-4:#6E5BFF;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,38,33,.06);
  --sh-2:0 10px 30px rgba(10,38,33,.10);
  --sh-3:0 18px 50px rgba(0,0,0,.35);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"SFMono-Regular",Consolas,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:16px;top:-70px;z-index:130;background:var(--c-brand);color:#fff;padding:10px 18px;border-radius:var(--r-sm);transition:top .2s ease}
.skip-link:focus{top:12px}

.ctn{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--c-brand),var(--c-deep));
  color:#fff;display:grid;place-items:center;
  font-size:13px;font-weight:800;letter-spacing:.06em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-main{font-size:16px;font-weight:800;color:var(--c-ink);letter-spacing:.02em}
.logo-sub{font-size:11px;color:var(--c-ink-2);letter-spacing:.08em}
.nav-desktop{display:flex;align-items:center;gap:4px}
.nav-item{
  position:relative;display:inline-block;
  padding:22px 14px;font-size:15px;color:var(--c-ink-2);
  transition:color .18s ease;
}
.nav-item::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;
  background:var(--c-brand);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;border-radius:2px;
}
.nav-item:hover{color:var(--c-ink)}
.nav-item:hover::after,.nav-item.active::after{transform:scaleX(1)}
.nav-item.active{color:var(--c-brand);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px}
.burger{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;background:transparent;
  border:1px solid var(--c-line);border-radius:var(--r-sm);cursor:pointer;
}
.burger span{display:block;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer-mask{
  position:fixed;inset:0;background:rgba(10,38,33,.5);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:88;
}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);
  background:var(--c-surface);z-index:92;padding:20px 20px 26px;
  transform:translateX(105%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
  box-shadow:var(--sh-3);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-line);background:transparent;border-radius:var(--r-sm);cursor:pointer;font-size:16px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:44px;padding:0 4px;font-size:15px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);transition:color .18s ease,padding-left .18s ease;
}
.drawer-link:hover{color:var(--c-brand);padding-left:8px}
.drawer-link.active{color:var(--c-brand);font-weight:600}
.drawer-cta{margin-top:18px;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.btn:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(255,138,61,.26)}
.btn-primary:hover{background:var(--c-accent-700);transform:translateY(-1px)}
.btn-outline{background:transparent;border-color:var(--c-line);color:var(--c-brand)}
.btn-outline:hover{border-color:var(--c-brand);background:rgba(14,138,110,.06);transform:translateY(-1px)}
.btn-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.34);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.16);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.text-link{color:var(--c-brand);font-size:14px;font-weight:600;border-bottom:1px solid transparent;transition:border-color .18s ease,color .18s ease}
.text-link:hover{color:var(--c-brand-700);border-color:currentColor}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.78);transition:color .18s ease}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:#fff;max-width:20ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 页头 ---------- */
.page-hero{position:relative;background:var(--c-deep);color:#fff;overflow:hidden}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.3}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:22px 22px;opacity:.05;pointer-events:none;
}
.page-hero-inner{position:relative;z-index:2;padding-top:58px;padding-bottom:64px;max-width:900px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(14,138,110,.22);border:1px solid rgba(110,91,255,.36);
  color:#CFF3E8;font-size:13px;font-weight:600;letter-spacing:.04em;margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(28px,4.2vw,48px);font-weight:800;line-height:1.24;
  letter-spacing:-.01em;margin-bottom:16px;
}
.page-hero-lead{font-size:clamp(16px,1.6vw,18px);color:rgba(255,255,255,.82);max-width:38ch;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:38px;margin-top:40px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16)}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{font-family:var(--font-mono);font-size:28px;font-weight:800;color:#fff;line-height:1.1}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.68)}

/* ---------- 板块 ---------- */
.section{padding:104px 0}
.section-alt{background:var(--c-surface-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px}
.kicker{display:block;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--c-brand);margin-bottom:10px}
.section-title{font-size:clamp(22px,3vw,32px);font-weight:800;line-height:1.3;letter-spacing:-.01em}
.section-sub{margin-top:10px;font-size:15px;color:var(--c-ink-2);max-width:44ch}

/* ---------- 栏目导览 ---------- */
.topic-list{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.topic-item{
  display:flex;align-items:flex-start;gap:16px;
  padding:24px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.topic-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand)}
.topic-icon{
  flex:0 0 auto;width:46px;height:46px;border-radius:var(--r-md);
  display:grid;place-items:center;font-size:18px;
  background:rgba(14,138,110,.1);color:var(--c-brand);
}
.topic-item:nth-child(2) .topic-icon{background:rgba(255,138,61,.12);color:var(--c-accent-700)}
.topic-item:nth-child(3) .topic-icon{background:rgba(110,91,255,.12);color:var(--c-violet)}
.topic-item:nth-child(4) .topic-icon{background:rgba(107,123,117,.14);color:var(--tier-1)}
.topic-body{flex:1 1 auto;min-width:0}
.topic-name{display:block;font-size:17px;font-weight:700;margin-bottom:6px}
.topic-desc{display:block;font-size:14px;color:var(--c-ink-2);line-height:1.75}
.topic-meta{flex:0 0 auto;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-ink-2);padding-top:4px}
.topic-count{font-family:var(--font-mono);font-size:13px;color:var(--c-ink-2)}

/* ---------- 筛选标签 ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip{
  height:40px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-2);
  font-size:14px;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{border-color:var(--c-brand);color:var(--c-brand)}
.chip[aria-pressed="true"]{background:var(--c-brand);border-color:var(--c-brand);color:#fff;font-weight:600}

/* ---------- 内容卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.c-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.c-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand)}
.c-cover{position:relative;display:block;aspect-ratio:16/10;overflow:hidden;background:var(--c-surface-alt)}
.c-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.c-card:hover .c-cover img{transform:scale(1.04)}
.c-tag{
  position:absolute;left:12px;top:12px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.94);color:var(--c-brand);
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.c-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.c-title{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:8px}
.c-title a{transition:color .18s ease}
.c-title a:hover{color:var(--c-brand)}
.c-desc{font-size:14px;color:var(--c-ink-2);line-height:1.75;flex:1 1 auto}
.c-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:16px;padding-top:14px;border-top:1px solid var(--c-line);
}
.c-time{font-family:var(--font-mono);font-size:13px;color:var(--c-ink-2)}
.c-more{font-size:13px;font-weight:600;color:var(--c-accent-700);transition:color .18s ease}
.c-more:hover{color:var(--c-accent)}
.list-more{display:flex;justify-content:center;margin-top:38px}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{
  position:relative;padding:26px 22px 24px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.step:not(:last-child)::after{content:"";position:absolute;top:48px;right:-22px;width:22px;height:1px;background:var(--c-line)}
.step-no{
  display:grid;place-items:center;width:40px;height:40px;border-radius:50%;
  background:rgba(14,138,110,.1);color:var(--c-brand);
  font-family:var(--font-mono);font-size:14px;font-weight:800;margin-bottom:14px;
}
.step h3{font-size:17px;font-weight:700;margin-bottom:8px}
.step p{font-size:14px;color:var(--c-ink-2);line-height:1.75}

/* ---------- 指标 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.metric{
  padding:26px 22px;border-radius:var(--r-lg);
  background:var(--c-surface);border:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.metric .num{
  display:block;font-family:var(--font-mono);
  font-size:34px;font-weight:800;line-height:1.1;color:var(--c-brand);
}
.metric:nth-child(2) .num{color:var(--c-accent-700)}
.metric:nth-child(3) .num{color:var(--c-violet)}
.metric:nth-child(4) .num{color:var(--c-ink)}
.metric .label{display:block;margin-top:10px;font-size:14px;color:var(--c-ink-2)}
.metric .bar{display:block;height:4px;border-radius:2px;background:var(--c-line);margin-top:16px;position:relative;overflow:hidden}
.metric .bar i{position:absolute;left:0;top:0;bottom:0;border-radius:2px;background:var(--c-brand)}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-left:3px solid transparent;border-radius:var(--r-md);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item+.faq-item{margin-top:14px}
.faq-item.open{border-left-color:var(--c-brand);box-shadow:var(--sh-1);background:var(--c-surface-alt)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:58px;padding:16px 22px;background:transparent;border:0;
  text-align:left;font-size:16px;font-weight:600;cursor:pointer;
}
.faq-q i{flex:0 0 auto;color:var(--c-brand);font-size:14px;transition:transform .2s ease}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-a-inner{padding:0 22px 20px;font-size:15px;color:var(--c-ink-2);line-height:1.8;max-width:70ch}
.faq-foot{margin-top:22px;font-size:14px;color:var(--c-ink-2)}

/* ---------- CTA ---------- */
.cta-band{position:relative;background:var(--c-deep);color:#fff;padding:96px 0;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:22px 22px;opacity:.05;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto;text-align:center}
.cta-inner h2{font-size:clamp(24px,3vw,32px);font-weight:800;line-height:1.3;margin-bottom:14px}
.cta-inner>p{font-size:16px;color:rgba(255,255,255,.78);line-height:1.8}
.cta-form{display:flex;gap:12px;margin:28px auto 14px;max-width:580px}
.field{
  flex:1 1 auto;min-width:0;height:48px;padding:0 22px;
  border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.07);color:#fff;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field::placeholder{color:rgba(255,255,255,.52)}
.field:focus{outline:none;border-color:var(--c-brand);background:rgba(255,255,255,.12);box-shadow:0 0 0 2px rgba(14,138,110,.45)}
.form-error{display:none;font-size:13px;color:#FFB4A2;margin-top:2px}
.form-error.show{display:block}
.form-ok{display:none;font-size:13px;color:#9FE6D3;margin-top:8px}
.form-ok.show{display:block}
.cta-points{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 26px;margin-top:22px}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.8)}
.cta-points li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;font-size:11px;color:var(--c-brand)}
.agree{display:flex;align-items:flex-start;justify-content:center;gap:10px;margin-top:24px;font-size:13px;color:rgba(255,255,255,.66);text-align:left;max-width:520px;margin-left:auto;margin-right:auto}
.agree input{margin-top:4px;width:16px;height:16px;accent-color:var(--c-brand);flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.72);padding:72px 0 30px;font-size:14px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-main{color:#fff}
.footer-brand .logo-sub{color:rgba(255,255,255,.6)}
.footer-brand p{font-size:13px;line-height:1.9;color:rgba(255,255,255,.62);max-width:36ch}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul li+li{margin-top:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color .18s ease}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:13px;color:rgba(255,255,255,.56)}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom .links a{color:rgba(255,255,255,.6);transition:color .18s ease}
.footer-bottom .links a:hover{color:#fff}
.disclaimer{margin-top:18px;font-size:12px;line-height:1.8;color:rgba(255,255,255,.42);max-width:76ch}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:20px;bottom:24px;width:46px;height:46px;
  border:0;border-radius:50%;background:var(--c-brand);color:#fff;
  display:grid;place-items:center;cursor:pointer;z-index:64;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease,transform .18s ease,background-color .18s ease;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:var(--c-brand-700);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-desktop{display:none}
  .burger{display:flex}
  .section{padding:80px 0}
  .page-hero-inner{padding-top:44px;padding-bottom:52px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:not(:last-child)::after{display:none}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .section{padding:60px 0}
  .header-cta{display:none}
  .topic-list,.card-grid,.steps,.metrics{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .hero-stats{gap:26px}
  .cta-form{flex-direction:column}
  .cta-band{padding:66px 0}
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  body{font-size:15px}
  .ctn{padding-left:16px;padding-right:16px}
  .header-inner{height:64px}
  .logo-sub{display:none}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-stats{gap:20px}
  .hero-stats strong{font-size:22px}
  .footer-top{grid-template-columns:1fr}
}

/* roulang page: category3 */
:root{
  --c-bg:#F5F3EE;--c-surface:#FFFFFF;--c-surface-alt:#FBF9F5;--c-line:#E4E0D8;
  --c-ink:#12201C;--c-ink-2:#55635E;--c-brand:#0E8A6E;--c-brand-700:#0A6E58;
  --c-deep:#0A2621;--c-accent:#FF8A3D;--c-accent-700:#E5732A;--c-violet:#6E5BFF;
  --tier-1:#6B7B75;--tier-2:#0E8A6E;--tier-3:#FF8A3D;--tier-4:#6E5BFF;
  --r-sm:8px;--r-md:14px;--r-lg:20px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(10,38,33,.06);
  --sh-2:0 10px 30px rgba(10,38,33,.10);
  --sh-3:0 18px 50px rgba(0,0,0,.35);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--c-bg);color:var(--c-ink);font-family:var(--font-sans);font-size:16px;line-height:1.85;overflow-x:hidden}
img{max-width:100%;display:block;border-radius:var(--r-md)}
a{color:var(--c-brand);text-decoration:none}
a:hover{color:var(--c-brand-700)}
button,input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700}
p{margin:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:16px;top:-60px;z-index:200;background:var(--c-deep);color:#fff;padding:10px 18px;border-radius:var(--r-pill);font-size:14px;transition:top .2s}
.skip-link:focus{top:12px;color:#fff}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.ctn{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.ctn{padding:0 24px}}
@media (min-width:1024px){.ctn{padding:0 32px}}
.sec{padding:104px 0}
@media (max-width:1023px){.sec{padding:80px 0}}
@media (max-width:640px){.sec{padding:56px 0}}
.sec-alt{background:var(--c-surface-alt)}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* 顶部信息条 */
.topbar{background:var(--c-deep);color:#E9F3EF;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px}
.topbar-note{opacity:.86;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-links{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-links a{color:#E9F3EF;font-size:13px;opacity:.86}
.topbar-links a:hover{opacity:1;color:#fff}
.topbar-cta{color:var(--c-accent)!important;text-decoration:underline;text-underline-offset:3px;font-weight:600;opacity:1!important}
@media (max-width:640px){.topbar-links a:not(.topbar-cta){display:none}}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
@media (max-width:640px){.header-inner{height:60px}}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink)}
.logo:hover{color:var(--c-ink)}
.logo-mark{width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-brand) 0%,var(--c-deep) 100%);color:#fff;font-weight:800;font-size:14px;letter-spacing:.5px}
.logo-text{display:flex;flex-direction:column;line-height:1.16}
.logo-main{font-size:17px;font-weight:800;letter-spacing:.2px}
.logo-sub{font-size:12px;color:var(--c-ink-2);letter-spacing:.4px}
.nav-desktop{display:flex;align-items:center;gap:2px}
.nav-item{position:relative;padding:10px 14px;font-size:15px;color:var(--c-ink-2);border-radius:var(--r-sm);transition:color .18s ease}
.nav-item::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--c-brand);border-radius:2px;transform:scaleX(0);transform-origin:center;transition:transform .2s ease}
.nav-item:hover{color:var(--c-brand)}
.nav-item:hover::after{transform:scaleX(1)}
.nav-item.active{color:var(--c-brand);font-weight:700}
.nav-item.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.burger{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.burger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:.2s}
.burger:hover{border-color:var(--c-brand)}
@media (max-width:1023px){
  .nav-desktop{display:none}
  .header-cta{display:none}
  .burger{display:inline-flex}
}

/* 抽屉 */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:120;transform:translateX(105%);transition:transform .28s ease;display:flex;flex-direction:column;padding:20px;box-shadow:var(--sh-3)}
body.drawer-open .drawer{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(10,38,33,.45);opacity:0;visibility:hidden;transition:.28s;z-index:110}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-sm);font-size:20px;line-height:1;cursor:pointer;color:var(--c-ink-2)}
.drawer-nav{display:flex;flex-direction:column;margin:12px 0 auto}
.drawer-nav a{display:flex;align-items:center;height:44px;font-size:16px;color:var(--c-ink);border-bottom:1px solid var(--c-line)}
.drawer-nav a.active{color:var(--c-brand);font-weight:700}
.drawer .btn{width:100%}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 18px rgba(255,138,61,.28)}
.btn-primary:hover{background:var(--c-accent-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,138,61,.32)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-brand)}
.btn-ghost:hover{border-color:var(--c-brand);background:rgba(14,138,110,.06);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--c-deep)}
.btn-light:hover{background:#F2FBF8;color:var(--c-deep);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.text-link{color:var(--c-brand);font-weight:600;font-size:14px;text-decoration:underline;text-underline-offset:3px}
.text-link:hover{color:var(--c-brand-700)}

/* 面包屑 */
.crumb{padding:18px 0 0;font-size:13px;color:var(--c-ink-2)}
.crumb a{color:var(--c-ink-2)}
.crumb a:hover{color:var(--c-brand)}
.crumb span.sep{margin:0 8px;opacity:.6}
.crumb .current{color:var(--c-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52vw;display:inline-block;vertical-align:bottom}

/* Hero */
.hero{padding:40px 0 72px}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:6fr 6fr;gap:56px}.hero{padding:56px 0 88px}}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--c-brand);background:rgba(14,138,110,.10);border-radius:var(--r-pill);padding:6px 14px}
.pill.violet{color:var(--c-violet);background:rgba(110,91,255,.12)}
h1{font-size:30px;font-weight:800;letter-spacing:-.5px;margin:18px 0 0}
@media (min-width:1024px){h1{font-size:46px}}
.hero-sub{margin-top:16px;font-size:16px;color:var(--c-ink-2);max-width:38ch}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:32px;padding-top:24px;border-top:1px solid var(--c-line)}
.fact b{display:block;font-size:22px;font-family:var(--font-num);color:var(--c-deep);line-height:1.2}
.fact span{font-size:13px;color:var(--c-ink-2)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2)}
.tier-float{position:absolute;right:18px;bottom:18px;background:rgba(10,38,33,.92);color:#fff;border-radius:var(--r-md);padding:12px 16px;display:flex;align-items:center;gap:12px;box-shadow:var(--sh-3)}
.tier-float .badge{width:38px;height:38px;border-radius:50%;background:var(--tier-4);display:grid;place-items:center;font-size:13px;font-weight:800}
.tier-float strong{display:block;font-size:14px}
.tier-float small{color:rgba(255,255,255,.72);font-size:12px}

/* 板块标题 */
.sec-head{max-width:720px}
.sec-head h2{font-size:23px;margin-bottom:12px}
@media (min-width:1024px){.sec-head h2{font-size:32px}}
.sec-head p{color:var(--c-ink-2);font-size:16px}

/* 通栏横幅 */
.banner{position:relative;border-radius:var(--r-lg);overflow:hidden;background-image:url(/assets/images/backpic/back-1.png);background-size:cover;background-position:center;min-height:300px;display:flex;align-items:center}
.banner::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,38,33,.92) 0%,rgba(10,38,33,.72) 55%,rgba(10,38,33,.42) 100%)}
.banner-inner{position:relative;z-index:2;padding:44px 32px;max-width:600px;color:#fff}
@media (max-width:640px){.banner-inner{padding:32px 22px}}
.banner-inner h2{font-size:24px;margin-bottom:12px}
@media (min-width:1024px){.banner-inner h2{font-size:32px}}
.banner-inner p{color:rgba(255,255,255,.82);font-size:15px;margin-bottom:24px}

/* 指标条 */
.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:-46px;position:relative;z-index:5}
@media (min-width:900px){.metrics{grid-template-columns:repeat(4,1fr);gap:22px}}
.metric{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1);transition:box-shadow .2s,transform .2s,border-color .2s}
.metric:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--c-brand)}
.metric i{color:var(--c-brand);font-size:16px}
.metric b{display:block;font-size:24px;font-family:var(--font-num);margin-top:10px;color:var(--c-deep)}
.metric span{font-size:13px;color:var(--c-ink-2)}

/* 时间轴 */
.timeline{margin-top:40px}
.tl-item{position:relative;display:grid;grid-template-columns:132px minmax(0,1fr);padding-bottom:24px}
.tl-time{position:relative;padding:20px 22px 0 0;text-align:right}
.tl-time .date{display:block;font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--c-deep)}
.tl-time .tag{display:inline-block;margin-top:6px;font-size:12px;color:var(--c-ink-2)}
.tl-time::after{content:"";position:absolute;right:-5.5px;top:26px;width:11px;height:11px;border-radius:50%;background:var(--c-brand);box-shadow:0 0 0 4px rgba(14,138,110,.14)}
.tl-item.is-accent .tl-time::after{background:var(--c-accent);box-shadow:0 0 0 4px rgba(255,138,61,.16)}
.tl-rail{position:absolute;left:132px;top:0;bottom:0;width:1px;background:var(--c-line)}
.tl-item:last-child .tl-rail{bottom:auto;height:40px}
.tl-body{position:relative;margin-left:22px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:20px 24px;box-shadow:var(--sh-1);transition:box-shadow .2s,transform .2s,border-color .2s}
.tl-body:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--c-brand)}
.tl-body h3{font-size:18px;margin-bottom:8px}
.tl-body p{color:var(--c-ink-2);font-size:15px}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.chip{font-size:12px;padding:4px 12px;border-radius:var(--r-pill);background:var(--c-surface-alt);border:1px solid var(--c-line);color:var(--c-ink-2)}
.chip.on{background:rgba(14,138,110,.10);border-color:transparent;color:var(--c-brand);font-weight:600}
.chip.violet{background:rgba(110,91,255,.12);border-color:transparent;color:var(--c-violet);font-weight:600}
@media (max-width:720px){
  .tl-item{grid-template-columns:1fr;padding-left:22px}
  .tl-time{text-align:left;padding:0 0 10px;display:flex;align-items:center;gap:10px}
  .tl-time .date{margin:0}
  .tl-time .tag{margin:0}
  .tl-time::after{right:auto;left:-27.5px;top:8px}
  .tl-rail{left:0}
  .tl-body{margin-left:0}
}

/* 列表行 */
.rows{margin-top:32px;border-top:1px solid var(--c-line)}
.row{display:flex;align-items:center;gap:16px;padding:16px 14px;border-bottom:1px solid var(--c-line);border-radius:var(--r-sm);transition:background .18s ease}
.row:hover{background:var(--c-surface-alt)}
.row img{width:64px;height:64px;flex:0 0 64px;object-fit:cover;border-radius:var(--r-sm)}
.row-main{flex:1;min-width:0}
.row-main h3{font-size:16px;font-weight:600;margin-bottom:4px}
.row-main p{font-size:14px;color:var(--c-ink-2)}
.row-side{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.tier-badge{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:12px;font-weight:800}
.t1{background:var(--tier-1)}.t2{background:var(--tier-2)}.t3{background:var(--tier-3)}.t4{background:var(--tier-4)}
@media (max-width:640px){
  .row{align-items:flex-start}
  .row img{width:52px;height:52px;flex:0 0 52px}
  .row-side{flex-direction:column;align-items:flex-end;gap:8px}
}

/* 折叠面板 */
.acc{margin-top:36px;border-top:1px solid var(--c-line)}
.acc-item{border-bottom:1px solid var(--c-line)}
.acc-head{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;background:transparent;border:0;padding:20px 14px;font-size:16px;font-weight:600;color:var(--c-ink);cursor:pointer;border-radius:var(--r-sm);transition:background .18s ease,color .18s ease}
.acc-head:hover{background:var(--c-surface-alt);color:var(--c-brand)}
.acc-head .caret{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--c-line);display:grid;place-items:center;font-size:12px;color:var(--c-ink-2);transition:transform .2s ease,background .2s ease,color .2s ease}
.acc-item.open .acc-head{color:var(--c-brand);background:var(--c-surface-alt)}
.acc-item.open .acc-head .caret{transform:rotate(180deg);background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .2s ease}
.acc-panel-inner{padding:0 16px 22px 17px;border-left:3px solid var(--c-brand);margin:0 14px 16px;background:var(--c-surface-alt);border-radius:0 var(--r-sm) var(--r-sm) 0}
.acc-panel-inner p{font-size:15px;color:var(--c-ink-2);padding-top:14px}

/* 注意事项双块 */
.notes{display:grid;grid-template-columns:1fr;gap:20px;margin-top:36px}
@media (min-width:900px){.notes{grid-template-columns:1fr 1fr;gap:24px}}
.note{background:var(--c-surface-alt);border:1px solid var(--c-line);border-left:3px solid var(--c-accent);border-radius:var(--r-md);padding:22px 24px}
.note h3{font-size:17px;margin-bottom:8px}
.note p{font-size:15px;color:var(--c-ink-2)}
.note.brand{border-left-color:var(--c-brand)}

/* CTA */
.cta{position:relative;background:var(--c-deep);color:#fff;border-radius:var(--r-lg);overflow:hidden;padding:56px 24px;text-align:center}
@media (min-width:1024px){.cta{padding:72px 32px}}
.cta::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);background-size:22px 22px;opacity:.5}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto}
.cta h2{font-size:24px}
@media (min-width:1024px){.cta h2{font-size:32px}}
.cta .cta-desc{color:rgba(255,255,255,.78);margin-top:14px;font-size:15px}
.cta-form{display:flex;flex-direction:column;gap:12px;margin-top:28px}
@media (min-width:640px){.cta-form{flex-direction:row}}
.cta-input{flex:1;height:48px;padding:0 18px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease}
.cta-input::placeholder{color:rgba(255,255,255,.55)}
.cta-input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(14,138,110,.35)}
.cta-input.err{border-color:#FF6B6B;box-shadow:0 0 0 3px rgba(255,107,107,.28)}
.form-msg{margin-top:10px;font-size:13px;color:#FF9C9C;min-height:20px}
.assure{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 22px;margin-top:24px;font-size:13px;color:rgba(255,255,255,.78)}
.assure i{color:var(--c-accent);margin-right:6px}
.agree{display:flex;align-items:flex-start;gap:10px;justify-content:center;margin-top:20px;font-size:13px;color:rgba(255,255,255,.72);text-align:left}
.agree input{width:16px;height:16px;margin-top:4px;accent-color:var(--c-accent)}

/* 页脚 */
.site-footer{background:var(--c-deep);color:rgba(255,255,255,.74);margin-top:104px;padding-top:64px}
@media (max-width:640px){.site-footer{margin-top:56px;padding-top:48px}}
.footer-top{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12)}
@media (min-width:900px){.footer-top{grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px}}
@media (min-width:520px) and (max-width:899px){.footer-top{grid-template-columns:1fr 1fr}}
.footer-brand .logo-main,.footer-brand .logo-sub{color:#fff}
.footer-brand .logo-sub{color:rgba(255,255,255,.62)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;max-width:38ch}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:14px;font-weight:700}
.footer-col li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.74);font-size:14px}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding:24px 0;font-size:13px}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:16px}
.footer-bottom .links a{color:rgba(255,255,255,.66);font-size:13px}
.footer-bottom .links a:hover{color:#fff}
.disclaimer{font-size:12px;color:rgba(255,255,255,.5);padding-bottom:28px;max-width:70ch}
.to-top{position:fixed;right:18px;bottom:24px;width:46px;height:46px;border-radius:50%;border:1px solid var(--c-line);background:#fff;color:var(--c-brand);display:grid;place-items:center;cursor:pointer;box-shadow:var(--sh-1);opacity:0;visibility:hidden;transition:.24s;z-index:90}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
@media (max-width:640px){.to-top{right:12px;bottom:16px}}

/* roulang page: category4 */
:root{
  --c-bg:#F5F3EE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#FBF9F5;
  --c-line:#E4E0D8;
  --c-ink:#12201C;
  --c-ink-2:#55635E;
  --c-brand:#0E8A6E;
  --c-brand-700:#0A6E58;
  --c-deep:#0A2621;
  --c-accent:#FF8A3D;
  --c-accent-700:#E5732A;
  --c-violet:#6E5BFF;
  --tier-1:#6B7B75;
  --tier-2:#0E8A6E;
  --tier-3:#FF8A3D;
  --tier-4:#6E5BFF;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(10,38,33,.06);
  --sh-2:0 10px 30px rgba(10,38,33,.10);
  --sh-3:0 18px 50px rgba(0,0,0,.35);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --sp-section:104px;
}
@media (max-width:1024px){ :root{ --sp-section:80px; } }
@media (max-width:640px){ :root{ --sp-section:56px; } }

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
.site-body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--font-sans);color:var(--c-ink);line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--c-deep);color:#fff;padding:10px 18px;border-radius:0 0 var(--r-sm) 0;font-size:14px;
}
.skip-link:focus{left:0;}

.ctn{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (max-width:1024px){ .ctn{padding:0 24px;} }
@media (max-width:640px){ .ctn{padding:0 16px;} }

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-deep);color:#DCEAE5;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;}
.topbar-note{letter-spacing:.2px;opacity:.92;}
.topbar-links{display:flex;align-items:center;gap:20px;}
.topbar-links a{color:#CFE3DC;text-decoration:none;transition:color .18s;}
.topbar-links a:hover{color:#fff;}
.topbar-links a.topbar-cta{color:var(--c-accent);text-decoration:underline;text-underline-offset:4px;}
@media (max-width:640px){
  .topbar-note{font-size:12px;}
  .topbar-links a:not(.topbar-cta){display:none;}
}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease,background-color .22s ease;
}
.site-header.scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 38px;
  background:linear-gradient(135deg,var(--c-brand) 0%,var(--c-brand-700) 100%);
  color:#fff;display:grid;place-items:center;
  font-weight:800;font-size:14px;letter-spacing:.6px;
}
.logo-text{display:flex;flex-direction:column;line-height:1.18;}
.logo-main{font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:.2px;}
.logo-sub{font-size:12px;color:var(--c-ink-2);}
.nav-desktop{display:flex;align-items:center;gap:4px;}
.nav-item{
  position:relative;padding:10px 14px;font-size:15px;color:var(--c-ink-2);
  text-decoration:none;border-radius:var(--r-sm);transition:color .18s,background-color .18s;
}
.nav-item::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--c-brand);transform:scaleX(0);transform-origin:left center;transition:transform .2s ease;
}
.nav-item:hover{color:var(--c-brand);}
.nav-item:hover::after{transform:scaleX(1);}
.nav-item.active{color:var(--c-brand);font-weight:700;}
.nav-item.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}

.burger{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  transition:border-color .18s,background-color .18s;
}
.burger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:background-color .18s;}
.burger:hover{border-color:var(--c-brand);}
.burger:hover span{background:var(--c-brand);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;text-decoration:none;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,color .16s ease,border-color .16s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 8px 20px rgba(255,138,61,.28);}
.btn-primary:hover{background:var(--c-accent-700);transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,138,61,.34);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(255,138,61,.24);}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-brand);}
.btn-ghost:hover{border-color:var(--c-brand);background:#F1F8F6;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--c-deep);border-color:#fff;}
.btn-light:hover{background:#F1F8F6;transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.42);color:#fff;}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.10);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

.link-more{color:var(--c-brand);text-decoration:none;font-weight:600;font-size:15px;border-bottom:1px solid rgba(14,138,110,.35);padding-bottom:2px;}
.link-more:hover{color:var(--c-brand-700);border-bottom-color:var(--c-brand-700);}

/* ============ 抽屉导航 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(10,38,33,.48);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;z-index:80;height:100%;width:320px;max-width:86vw;
  background:#fff;padding:20px;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .28s ease;box-shadow:var(--sh-3);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;border-bottom:1px solid var(--c-line);}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-ink);}
.drawer-close{
  width:36px;height:36px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:#fff;
  font-size:20px;line-height:1;color:var(--c-ink-2);cursor:pointer;transition:border-color .18s,color .18s;
}
.drawer-close:hover{border-color:var(--c-brand);color:var(--c-brand);}
.drawer-nav{display:flex;flex-direction:column;padding:10px 0;flex:1 1 auto;overflow:auto;}
.drawer-nav a{
  display:flex;align-items:center;height:46px;font-size:16px;color:var(--c-ink);
  text-decoration:none;border-bottom:1px solid var(--c-line);transition:color .18s,padding-left .18s;
}
.drawer-nav a:hover{color:var(--c-brand);padding-left:4px;}
.drawer-nav a.active{color:var(--c-brand);font-weight:700;}
.drawer-cta{margin-top:18px;width:100%;}
body.nav-open{overflow:hidden;}

@media (max-width:1023px){
  .nav-desktop{display:none;}
  .burger{display:flex;}
  .header-inner{height:60px;}
  .header-cta{display:none;}
}

/* ============ 面包屑 ============ */
.crumb{padding:22px 0 0;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:#B9B4A8;}
.crumb a{text-decoration:none;color:var(--c-ink-2);transition:color .18s;}
.crumb a:hover{color:var(--c-brand);}
.crumb li[aria-current] span{color:var(--c-ink);max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;}

/* ============ 页头 Banner ============ */
.page-hero{position:relative;background:var(--c-deep);color:#fff;overflow:hidden;margin-top:20px;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.30;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.35;
}
.hero-inner{position:relative;z-index:1;padding:64px 0 68px;max-width:820px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(14,138,110,.22);border:1px solid rgba(255,255,255,.18);
  color:#B8E6D8;font-size:12px;letter-spacing:1px;padding:6px 14px;border-radius:var(--r-pill);
}
.hero-inner h1{color:#fff;font-size:46px;font-weight:800;letter-spacing:.4px;margin:20px 0 14px;}
.hero-inner .hero-sub{color:#D6E5E0;font-size:17px;line-height:1.8;max-width:640px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:28px;}
.hero-stat b{display:block;font-family:var(--font-mono);font-size:22px;color:#fff;font-weight:700;}
.hero-stat span{font-size:13px;color:#A9C6BE;}

.search-form{
  display:flex;gap:10px;background:#fff;padding:8px;border-radius:var(--r-pill);
  max-width:640px;margin-top:32px;box-shadow:var(--sh-3);
}
.search-form input{
  flex:1 1 auto;min-width:0;height:48px;border:none;background:transparent;
  padding:0 18px;font-size:15px;color:var(--c-ink);outline:none;font-family:inherit;
}
.search-form input::placeholder{color:#9AA6A1;}
.search-form .btn{flex:0 0 auto;height:48px;}
.search-hint{margin-top:12px;font-size:13px;color:#93B3AA;}

@media (max-width:1024px){
  .hero-inner h1{font-size:36px;}
}
@media (max-width:640px){
  .page-hero{margin-top:12px;}
  .hero-inner{padding:44px 0 48px;}
  .hero-inner h1{font-size:29px;line-height:1.32;}
  .hero-inner .hero-sub{font-size:15px;}
  .hero-stats{gap:22px;margin-top:22px;}
  .search-form{flex-direction:column;border-radius:var(--r-md);padding:10px;margin-top:24px;}
  .search-form input{height:44px;}
  .search-form .btn{width:100%;}
}

/* ============ 通用板块 ============ */
.section{padding-top:var(--sp-section);}
.section-alt{background:var(--c-surface-alt);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);margin-top:var(--sp-section);padding-bottom:var(--sp-section);}
.sec-head{max-width:720px;}
.sec-kicker{
  display:inline-block;font-size:12px;letter-spacing:2px;color:var(--c-brand);
  background:rgba(14,138,110,.09);border-radius:var(--r-pill);padding:5px 12px;font-weight:700;
}
.sec-head h2{font-size:32px;font-weight:800;margin:16px 0 12px;letter-spacing:.2px;}
.sec-head p{color:var(--c-ink-2);font-size:16px;max-width:640px;}
@media (max-width:640px){
  .sec-head h2{font-size:23px;}
  .sec-head p{font-size:15px;}
}

/* ============ 步骤条 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:44px;}
.step{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:24px 22px 26px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-brand);}
.step-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.step-num{
  width:42px;height:42px;flex:0 0 42px;border-radius:50%;display:grid;place-items:center;
  background:rgba(14,138,110,.10);color:var(--c-brand);font-family:var(--font-mono);font-weight:700;font-size:15px;
}
.step-time{font-size:12px;color:var(--c-ink-2);background:var(--c-surface-alt);border:1px solid var(--c-line);padding:3px 10px;border-radius:var(--r-pill);}
.step h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14px;color:var(--c-ink-2);line-height:1.8;}
.step:not(:last-child)::after{
  content:"";position:absolute;top:44px;right:-24px;width:24px;height:1px;background:var(--c-line);
}
@media (max-width:1024px){
  .steps{grid-template-columns:repeat(2,1fr);}
  .step:not(:last-child)::after{display:none;}
}
@media (max-width:640px){
  .steps{grid-template-columns:1fr;margin-top:30px;}
  .step{padding:20px 18px;}
}

/* ============ 图文速查 ============ */
.guide-split{display:grid;grid-template-columns:1.02fr 1fr;gap:56px;align-items:center;margin-top:40px;}
.guide-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:#E7E3DA;}
.guide-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.guide-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:16px 20px;font-size:13px;color:#E7F2EE;
  background:linear-gradient(to top,rgba(10,38,33,.82),rgba(10,38,33,0));
}
.guide-list li{
  display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--c-line);
}
.guide-list li:first-child{padding-top:6px;}
.guide-list .dot{
  width:10px;height:10px;border-radius:50%;flex:0 0 10px;margin-top:11px;background:var(--c-brand);
}
.guide-list li:nth-child(2) .dot{background:var(--c-accent);}
.guide-list li:nth-child(3) .dot{background:var(--c-violet);}
.guide-list h3{font-size:17px;font-weight:700;margin-bottom:4px;}
.guide-list p{font-size:14px;color:var(--c-ink-2);}
.guide-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;}
@media (max-width:900px){
  .guide-split{grid-template-columns:1fr;gap:32px;}
}

/* ============ FAQ ============ */
.faq-wrap{margin-top:40px;max-width:900px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#CFD8D3;}
.faq-item.open{border-color:var(--c-brand);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:none;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
}
.faq-q .ico{
  flex:0 0 22px;width:22px;height:22px;position:relative;transition:transform .2s ease;
}
.faq-q .ico::before,
.faq-q .ico::after{
  content:"";position:absolute;background:var(--c-brand);border-radius:2px;
}
.faq-q .ico::before{left:0;right:0;top:10px;height:2px;}
.faq-q .ico::after{top:0;bottom:0;left:10px;width:2px;transition:transform .2s ease,opacity .2s ease;}
.faq-item.open .faq-q .ico::after{transform:scaleY(0);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a-inner{
  padding:0 22px 20px 24px;font-size:15px;color:var(--c-ink-2);line-height:1.85;
  border-left:3px solid transparent;
}
.faq-item.open .faq-a-inner{border-left-color:var(--c-brand);}
.faq-foot{margin-top:20px;font-size:15px;color:var(--c-ink-2);}
@media (max-width:640px){
  .faq-q{font-size:15px;padding:16px 16px;}
  .faq-a-inner{padding:0 16px 18px 18px;font-size:14px;}
}

/* ============ 联系反馈 ============ */
.contact-card{
  display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
  background:var(--c-surface-alt);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:36px 40px;margin-top:40px;
}
.contact-card h3{font-size:22px;font-weight:800;margin-bottom:10px;}
.contact-card p{font-size:15px;color:var(--c-ink-2);}
.contact-card .actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
.contact-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:18px;font-size:13px;color:var(--c-ink-2);}
.contact-meta span b{font-family:var(--font-mono);color:var(--c-ink);font-weight:700;}
@media (max-width:900px){
  .contact-card{grid-template-columns:1fr;padding:26px 22px;gap:22px;}
  .contact-card .actions{justify-content:flex-start;}
}

/* ============ CTA 条 ============ */
.cta-band{background:var(--c-deep);color:#fff;position:relative;overflow:hidden;margin-top:var(--sp-section);}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:24px 24px;opacity:.28;
}
.cta-inner{position:relative;z-index:1;max-width:720px;margin:0 auto;text-align:center;padding:76px 0;}
.cta-inner h2{color:#fff;font-size:30px;font-weight:800;margin-bottom:14px;}
.cta-inner p{color:#BBD2CB;font-size:16px;max-width:560px;margin:0 auto;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px;}
.cta-notes{display:flex;flex-wrap:wrap;gap:24px;justify-content:center;margin-top:28px;font-size:13px;color:#9DBAB2;}
.cta-notes span::before{content:"·";color:var(--c-accent);margin-right:6px;font-weight:700;}
@media (max-width:640px){
  .cta-inner{padding:56px 0;}
  .cta-inner h2{font-size:23px;}
  .cta-inner p{font-size:15px;}
  .cta-actions .btn{width:100%;}
  .cta-notes{gap:10px 18px;}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-deep);color:#C4D6D0;margin-top:0;padding-top:64px;}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand .logo-mark{background:linear-gradient(135deg,#12A183,#0A6E58);}
.footer-brand .logo-main{color:#fff;}
.footer-brand .logo-sub{color:#8FB2A9;}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:#9DBAB2;max-width:340px;}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:#9DBAB2;text-decoration:none;transition:color .18s,padding-left .18s;}
.footer-col a:hover{color:#fff;padding-left:3px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  padding:22px 0;font-size:13px;color:#8FB2A9;
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom a{color:#9DBAB2;text-decoration:none;transition:color .18s;}
.footer-bottom a:hover{color:#fff;}
.disclaimer{font-size:12.5px;color:#739089;padding-bottom:32px;line-height:1.8;}
@media (max-width:900px){
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:520px){
  .footer-top{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:24px;z-index:65;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--c-line);
  background:#fff;color:var(--c-brand);font-size:18px;cursor:pointer;
  display:grid;place-items:center;box-shadow:var(--sh-1);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease,visibility .22s ease,transform .22s ease,border-color .18s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:var(--c-brand);}
@media (max-width:640px){ .to-top{right:14px;bottom:16px;} }