/* roulang page: index */
:root{
  --ink-950:#061417;
  --ink-900:#0A1F23;
  --panel:#0E262B;
  --primary:#16B389;
  --primary-hover:#1FCFA0;
  --primary-active:#0F9573;
  --accent:#E9BF74;
  --text-hi:#EAF4F1;
  --text-mid:#A9C0BD;
  --text-low:#7E9694;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.08);
  --paper:#F4F8F6;
  --ok:#35C08A;
  --err:#E4665C;
  --r-btn:12px;
  --r-card:18px;
  --r-panel:24px;
  --shadow-card:0 12px 32px rgba(0,0,0,.35);
  --glow:0 0 0 1px rgba(22,179,137,.6), 0 0 24px rgba(22,179,137,.35);
  --space-xs:8px;
  --space-sm:16px;
  --space-md:24px;
  --space-lg:40px;
  --sec-sm:64px;
  --sec-md:88px;
  --sec-lg:112px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-mid);
  background-color:var(--ink-950);
  background-image:
    radial-gradient(900px 520px at 12% -6%, rgba(22,179,137,.10), transparent 62%),
    radial-gradient(760px 480px at 92% 8%, rgba(22,179,137,.07), transparent 66%),
    linear-gradient(180deg,#061417 0%,#0A1F23 45%,#061417 100%);
  background-attachment:fixed;
  word-break:break-word;
  overflow-x:hidden;
}
img{max-width:100%;display:block;background-color:#0E262B}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:rgba(22,179,137,.32);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#08181B}
::-webkit-scrollbar-thumb{background:rgba(22,179,137,.34);border-radius:999px;border:2px solid #08181B}
::-webkit-scrollbar-thumb:hover{background:rgba(22,179,137,.55)}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.section{padding:var(--sec-sm) 0}
.section-lg{padding:var(--sec-md) 0}
@media(min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media(min-width:1024px){.container{padding-left:40px;padding-right:40px}}
@media(min-width:768px){.section{padding:var(--sec-md) 0}.section-lg{padding:var(--sec-md) 0}}
@media(min-width:1024px){.section{padding:var(--sec-lg) 0}.section-lg{padding:var(--sec-lg) 0}}

/* 导航 */
.site-header{position:sticky;top:0;z-index:80;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);background:rgba(6,20,23,.72);border-bottom:1px solid var(--line);transition:background .2s ease-out,box-shadow .2s ease-out}
.site-header.is-scrolled{background:rgba(6,20,23,.92);box-shadow:0 10px 30px rgba(0,0,0,.45)}
.brand-row{border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.logo{display:inline-flex;align-items:baseline;gap:8px;font-size:19px;font-weight:700;color:var(--text-hi);letter-spacing:.2px}
.logo .dot{width:7px;height:7px;border-radius:999px;background:var(--primary);display:inline-block;box-shadow:0 0 10px rgba(22,179,137,.7)}
.logo-sub{font-size:12px;font-weight:500;color:var(--text-low);letter-spacing:.14em}
.brand-actions{display:flex;align-items:center;gap:10px}
.hotline{display:none;align-items:center;gap:8px;font-size:14px;color:var(--text-mid);padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:var(--glass);transition:color .2s ease-out,border-color .2s ease-out}
.hotline:hover{color:var(--text-hi);border-color:rgba(22,179,137,.5)}
.hotline svg{width:16px;height:16px;stroke:var(--primary)}
.icon-btn{width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;border:1px solid var(--line);background:var(--glass);color:var(--text-mid);transition:color .2s ease-out,border-color .2s ease-out,transform .2s ease-out}
.icon-btn:hover{color:var(--text-hi);border-color:rgba(22,179,137,.5);transform:translateY(-1px)}
.icon-btn svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.hamburger{display:inline-flex}
.channel-row{overflow:hidden}
.channel-inner{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel{position:relative;flex:0 0 auto;padding:12px 14px;font-size:15px;color:var(--text-mid);border-radius:999px;transition:color .2s ease-out,background .2s ease-out}
.channel:hover{color:var(--text-hi);background:rgba(22,179,137,.06)}
.channel.is-active{color:var(--primary);background:rgba(22,179,137,.10);font-weight:600}
.channel.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(22,179,137,.8)}
@media(min-width:1024px){
  .hamburger{display:none}
  .hotline{display:inline-flex}
  .brand-inner{min-height:72px}
  .logo{font-size:21px}
}
.search-panel{display:none;border-bottom:1px solid var(--line);background:rgba(6,20,23,.96)}
.search-panel.is-open{display:block}
.search-panel .inner{display:flex;gap:10px;padding:14px 0}
.search-panel input{flex:1;min-width:0;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text-hi)}
.search-panel input::placeholder{color:var(--text-low)}
.search-panel input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,179,137,.18)}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:120;display:none;background:rgba(4,14,16,.96);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.drawer.is-open{display:flex;flex-direction:column}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-nav{padding:16px 20px 40px;display:flex;flex-direction:column;gap:6px}
.drawer-nav a{min-height:48px;display:flex;align-items:center;padding:0 16px;border-radius:12px;color:var(--text-hi);font-size:16px;border:1px solid transparent}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(22,179,137,.10);border-color:rgba(22,179,137,.4);color:var(--primary)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:var(--r-btn);font-size:15.5px;font-weight:600;line-height:1;transition:transform .2s ease-out,background .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out,color .2s ease-out;white-space:nowrap}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--primary);color:#04191A;box-shadow:var(--glow)}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(22,179,137,.7),0 0 30px rgba(22,179,137,.45)}
.btn-primary:active{background:var(--primary-active)}
.btn-ghost{background:var(--glass);border:1px solid var(--line);color:var(--text-hi)}
.btn-ghost:hover{border-color:rgba(22,179,137,.55);background:var(--glass-strong);transform:translateY(-1px)}
.btn-sm{padding:10px 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;pointer-events:none}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-size:14.5px;font-weight:600;text-underline-offset:5px;transition:color .2s ease-out,gap .2s ease-out}
.link-more:hover{color:var(--primary-hover);gap:10px;text-decoration:underline}
.link-more svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12.5px;line-height:1.5;border:1px solid rgba(22,179,137,.38);background:rgba(22,179,137,.10);color:#7FE3C4}
.badge-accent{border-color:rgba(233,191,116,.40);background:rgba(233,191,116,.10);color:var(--accent)}
.badge-soft{border-color:var(--line);background:rgba(255,255,255,.05);color:var(--text-mid)}
.chip{display:inline-flex;align-items:center;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:var(--glass);color:var(--text-mid);font-size:14px;transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out}
.chip:hover{color:var(--text-hi);border-color:rgba(22,179,137,.5);background:rgba(22,179,137,.08)}

/* 通用标题 */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.16em;color:var(--accent);text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,transparent,var(--accent))}
.h2{font-size:clamp(22px,3vw,34px);line-height:1.25;font-weight:650;color:var(--text-hi);letter-spacing:-.2px}
.lead{font-size:16px;color:var(--text-mid);max-width:720px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:34px}

/* 玻璃卡 */
.glass{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
@supports not (backdrop-filter: blur(4px)){.glass{background:rgba(14,38,43,.86)}}

/* Hero */
.hero{position:relative;overflow:hidden;padding-top:52px;padding-bottom:64px}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(circle at 50% 30%,#000 10%,transparent 78%);-webkit-mask-image:radial-gradient(circle at 50% 30%,#000 10%,transparent 78%);pointer-events:none}
.hero::after{content:"";position:absolute;width:520px;height:520px;right:-160px;top:-180px;border-radius:50%;background:radial-gradient(circle,rgba(22,179,137,.16),transparent 68%);pointer-events:none}
.hero-grid{position:relative;display:grid;gap:44px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:56px}.hero{padding-top:78px;padding-bottom:96px}}
.hero h1{font-size:clamp(28px,4.4vw,52px);line-height:1.2;font-weight:700;color:var(--text-hi);letter-spacing:-.5px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{margin-top:18px;font-size:16.5px;line-height:1.85;color:var(--text-mid);max-width:620px}
.hero-cta{margin-top:30px;display:flex;flex-wrap:wrap;gap:12px}
.hero-badges{margin-top:28px;display:flex;flex-wrap:wrap;gap:10px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:999px;border:1px solid var(--line);background:var(--glass);font-size:13.5px;color:var(--text-mid)}
.hero-badge svg{width:16px;height:16px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.hero-visual{position:relative}
.hero-frame{border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow-card)}
.hero-frame img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
.hero-float{position:absolute;left:-18px;bottom:-24px;display:none;gap:10px}
@media(min-width:768px){.hero-float{display:flex}}
.hero-float .mini{min-width:132px;padding:12px 14px;border-radius:var(--r-card);background:rgba(10,31,35,.92);border:1px solid var(--line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:var(--shadow-card)}
.hero-float .mini strong{display:block;font-size:20px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.3}
.hero-float .mini span{font-size:12.5px;color:var(--text-low)}
.hero-marquee{margin-top:34px;display:flex;flex-wrap:wrap;gap:8px}

/* Bento 服务区 */
.bento{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:768px){.bento{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.bento{grid-template-columns:repeat(4,minmax(0,1fr))}.bento-large{grid-column:span 2;grid-row:span 2}}
.svc{padding:24px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line);display:flex;flex-direction:column;gap:12px;transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out}
.svc:hover{transform:translateY(-4px);border-color:rgba(22,179,137,.45);box-shadow:var(--shadow-card)}
.svc-ico{width:48px;height:48px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(22,179,137,.32);background:rgba(22,179,137,.10)}
.svc-ico svg{width:24px;height:24px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.svc h3{font-size:19px;line-height:1.4;font-weight:600;color:var(--text-hi)}
.svc p{font-size:15px;line-height:1.85;color:var(--text-mid)}
.svc-large{padding:28px;gap:16px}
.svc-large img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px}
.svc-foot{margin-top:auto;padding-top:8px}

/* 数据带 */
.databand{margin:0;background:linear-gradient(180deg,rgba(6,20,23,.96),rgba(10,31,35,.96));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
@media(min-width:1024px){.stats{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat{padding:30px 18px;border-bottom:1px solid var(--line);text-align:left}
@media(min-width:1024px){.stat{border-bottom:0;border-right:1px solid var(--line);padding:38px 26px}.stat:last-child{border-right:0}}
.stat strong{display:block;font-size:clamp(28px,3.4vw,42px);font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.15;letter-spacing:-.5px}
.stat strong.accent{color:var(--accent)}
.stat span{display:block;margin-top:8px;font-size:13.5px;color:var(--text-low)}
.stat p{margin-top:8px;font-size:14px;color:var(--text-mid)}
.progress{height:3px;border-radius:2px;background:rgba(255,255,255,.08);overflow:hidden}
.progress i{display:block;height:100%;width:72%;background:linear-gradient(90deg,var(--primary),var(--primary-hover));box-shadow:0 0 14px rgba(22,179,137,.6)}

/* 案例 zigzag */
.zig{display:grid;gap:36px;align-items:center}
@media(min-width:1024px){.zig{grid-template-columns:1fr 1fr;gap:56px}.zig.reverse .zig-media{order:2}}
.zig-media{position:relative}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);transition:transform .35s ease-out}
.zig-media:hover img{transform:scale(1.03)}
.zig-media::after{content:"";position:absolute;inset:14px -14px -14px 14px;border:1px solid rgba(22,179,137,.35);border-radius:var(--r-card);pointer-events:none}
.zig-body h3{font-size:21px;line-height:1.4;font-weight:600;color:var(--text-hi);margin-top:14px}
.zig-body p{margin-top:12px;font-size:15.5px;line-height:1.85;color:var(--text-mid)}
.zig-body .link-more{margin-top:16px}

/* 方案编号目录行 */
.plan-list{border-top:1px solid var(--line)}
.plan-row{display:grid;grid-template-columns:auto 1fr;gap:16px 20px;align-items:center;padding:24px 16px;border-bottom:1px solid var(--line);transition:background .2s ease-out}
.plan-row:hover{background:rgba(22,179,137,.05)}
.plan-row:hover .plan-go{transform:translateX(6px);color:var(--primary)}
.plan-no{font-size:26px;font-weight:700;color:rgba(22,179,137,.45);font-variant-numeric:tabular-nums;line-height:1}
.plan-body h3{font-size:18px;font-weight:600;color:var(--text-hi)}
.plan-body p{margin-top:6px;font-size:14.5px;line-height:1.8;color:var(--text-mid)}
.plan-go{grid-column:2;justify-self:start;color:var(--text-low);transition:transform .2s ease-out,color .2s ease-out}
.plan-go svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
@media(min-width:768px){
  .plan-row{grid-template-columns:80px 1fr auto;padding:28px 20px;gap:24px}
  .plan-no{font-size:38px;color:rgba(233,191,116,.42)}
  .plan-go{grid-column:auto;justify-self:end}
}

/* 最新信息 */
.news-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:768px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.news-card:first-child{grid-column:span 2}}
.news-card{display:flex;flex-direction:column;gap:10px;padding:20px;border-radius:var(--r-card);background:rgba(255,255,255,.045);border:1px solid var(--line);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out}
.news-card:hover{transform:translateY(-4px);border-color:rgba(22,179,137,.45);box-shadow:var(--shadow-card)}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px}
.news-card h3{font-size:17px;line-height:1.45;font-weight:600;color:var(--text-hi);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card h3 a:hover{color:var(--primary)}
.news-card p{font-size:14.5px;line-height:1.8;color:var(--text-mid);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--text-low)}
.news-meta time{font-size:13px;color:var(--text-low)}
.empty-state{padding:48px 24px;text-align:center;border-radius:var(--r-card);border:1px dashed var(--line);background:rgba(255,255,255,.03)}
.empty-state svg{width:34px;height:34px;stroke:var(--text-low);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;margin:0 auto 14px}
.empty-state p{color:var(--text-mid);margin-bottom:16px}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 6px;font-size:16.5px;font-weight:600;color:var(--text-hi);transition:color .2s ease-out}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--primary)}
.faq summary svg{width:18px;height:18px;flex:0 0 auto;stroke:var(--primary);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .25s ease-out}
.faq details[open] summary svg{transform:rotate(45deg)}
.faq .answer{padding:0 6px 22px;font-size:15.5px;line-height:1.9;color:var(--text-mid);background:rgba(255,255,255,.02);border-radius:0 0 12px 12px}

/* 联系与表单 */
.contact-grid{display:grid;gap:24px}
@media(min-width:1024px){.contact-grid{grid-template-columns:.9fr 1.1fr;gap:28px}}
.info-card{padding:28px;border-radius:var(--r-panel);background:var(--glass);border:1px solid var(--line)}
.info-item{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.info-item:last-of-type{border-bottom:0}
.info-item svg{width:20px;height:20px;flex:0 0 auto;margin-top:4px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.info-item strong{display:block;font-size:14px;color:var(--text-hi);font-weight:600}
.info-item span{font-size:14.5px;color:var(--text-mid)}
.map-ph{margin-top:16px;height:132px;border-radius:var(--r-card);border:1px solid rgba(22,179,137,.4);background:linear-gradient(135deg,rgba(22,179,137,.10),rgba(255,255,255,.03));display:flex;align-items:center;justify-content:center;font-size:13.5px;color:var(--text-low)}
.form-card{padding:28px;border-radius:var(--r-panel);background:var(--paper);color:#16262A;box-shadow:var(--shadow-card)}
.form-card h3{font-size:20px;font-weight:650;color:#0D2226}
.form-card p.hint{margin-top:8px;font-size:14px;color:#5A6F72}
.field{margin-top:18px}
.field label{display:block;font-size:14px;font-weight:600;color:#26403F;margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border-radius:12px;border:1px solid #C7D6D3;background:#fff;color:#16262A;transition:border-color .2s ease-out,box-shadow .2s ease-out}
.field textarea{resize:vertical;min-height:120px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,179,137,.2)}
.field.has-error input,.field.has-error textarea{border-color:var(--err)}
.field .err-text{display:none;margin-top:6px;font-size:12.5px;color:var(--err)}
.field.has-error .err-text{display:block}
.check{display:flex;align-items:flex-start;gap:10px;margin-top:18px;font-size:13.5px;color:#3C5553}
.check input{width:18px;height:18px;margin-top:2px;accent-color:var(--primary)}
.form-card .btn{margin-top:20px}

/* 页脚 */
.site-footer{margin-top:var(--sec-sm);background:var(--ink-950);border-top:1px solid var(--line)}
.footer-grid{display:grid;gap:32px;padding:56px 0 36px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}}
.footer-col h4{font-size:13px;letter-spacing:.14em;color:var(--text-low);font-weight:600;margin-bottom:16px}
.footer-col p{font-size:14.5px;line-height:1.85;color:var(--text-mid)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;color:var(--text-mid);transition:color .2s ease-out}
.footer-col a:hover{color:var(--primary)}
.footer-logo{font-size:19px;font-weight:700;color:var(--text-hi);display:inline-flex;align-items:center;gap:8px}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--text-low)}
.footer-bottom a{color:var(--text-low)}
.footer-bottom a:hover{color:var(--primary)}

/* 返回顶部 */
.to-top{position:fixed;right:18px;bottom:22px;z-index:70;width:46px;height:46px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);background:rgba(10,31,35,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);color:var(--text-hi);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s ease-out,transform .25s ease-out,visibility .25s ease-out}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(22,179,137,.6);color:var(--primary)}
.to-top svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}

/* 骨架屏 */
.skeleton{background:linear-gradient(90deg,rgba(255,255,255,.04) 0%,rgba(255,255,255,.08) 40%,rgba(255,255,255,.04) 80%);background-size:400px 100%;animation:shimmer 1.6s linear infinite;border-radius:12px}

/* roulang page: article */
:root{
  --ink-950:#061417;
  --ink-900:#0A1F23;
  --panel:#0E262B;
  --primary:#16B389;
  --primary-hover:#1FCFA0;
  --primary-active:#0F9573;
  --accent:#E9BF74;
  --text-hi:#EAF4F1;
  --text-mid:#A9C0BD;
  --text-low:#7E9694;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.08);
  --paper:#F4F8F6;
  --ink-paper:#16262A;
  --ok:#35C08A;
  --warn:#E9BF74;
  --err:#E4665C;
  --r-btn:12px;
  --r-card:18px;
  --r-panel:24px;
  --shadow-card:0 12px 32px rgba(0,0,0,.35);
  --shadow-card-hover:0 18px 42px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(22,179,137,.6), 0 0 24px rgba(22,179,137,.35);
  --container:1200px;
  --header-h:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-mid);
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(22,179,137,.10), transparent 68%),
    radial-gradient(680px 400px at 92% 12%, rgba(22,179,137,.07), transparent 70%),
    linear-gradient(180deg,#061417 0%,#0A1F23 46%,#061417 100%);
  background-attachment:fixed;
  word-break:break-word;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,opacity .2s ease-out}
a:hover{color:var(--primary-hover)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--text-hi);margin:0;font-weight:650;line-height:1.28}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 40px}}
::selection{background:rgba(22,179,137,.35);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#08191c}
::-webkit-scrollbar-thumb{background:rgba(22,179,137,.35);border-radius:999px;border:2px solid #08191c}
::-webkit-scrollbar-thumb:hover{background:rgba(22,179,137,.55)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;line-height:1.2;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn-primary{background:var(--primary);color:#04211A;box-shadow:var(--glow)}
.btn-primary:hover{background:var(--primary-hover);color:#04211A;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,207,160,.7),0 0 30px rgba(31,207,160,.45)}
.btn-primary:active{background:var(--primary-active);transform:scale(.98)}
.btn-ghost{background:var(--glass);border-color:var(--line);color:var(--text-hi);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(22,179,137,.5);color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;pointer-events:none}
.link-more{color:var(--primary);font-size:14px;font-weight:600;border-bottom:1px solid rgba(22,179,137,.35);padding-bottom:2px}
.link-more:hover{color:var(--primary-hover);border-color:var(--primary-hover)}

/* ---------- 顶部导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60}
.brand-row{
  background:rgba(6,20,23,.72);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background-color .25s ease-out,box-shadow .25s ease-out;
}
.site-header.is-scrolled .brand-row{background:rgba(6,20,23,.92);box-shadow:0 10px 30px rgba(0,0,0,.45)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.logo{display:inline-flex;align-items:center;gap:8px;font-size:19px;font-weight:700;color:var(--text-hi);letter-spacing:.2px;white-space:nowrap}
.logo .dot{width:7px;height:7px;border-radius:999px;background:var(--primary);display:inline-block;box-shadow:0 0 12px rgba(22,179,137,.85)}
.logo-sub{font-size:12px;font-weight:500;color:var(--text-low);padding-left:8px;border-left:1px solid var(--line);letter-spacing:1px}
.brand-actions{display:flex;align-items:center;gap:14px}
.hotline{display:none;align-items:center;gap:7px;font-size:14px;color:var(--text-mid)}
.hotline:hover{color:var(--primary-hover)}
.hotline svg{width:16px;height:16px;stroke:var(--primary);fill:none;stroke-width:1.8}
.menu-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-btn);background:var(--glass);border:1px solid var(--line);color:var(--text-hi);cursor:pointer}
.menu-btn:hover{border-color:rgba(22,179,137,.5)}
.menu-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.9}
.channel-row{background:rgba(10,31,35,.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;gap:4px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;
  font-size:14.5px;font-weight:500;color:var(--text-mid);white-space:nowrap;transition:all .2s ease-out;
}
.channel:hover{color:var(--text-hi);background:rgba(22,179,137,.08)}
.channel.is-active{color:var(--primary-hover);background:rgba(22,179,137,.04);box-shadow:inset 0 -2px 0 var(--primary)}
@media (min-width:1024px){
  .hotline{display:inline-flex}
  .menu-btn{display:none}
  .brand-inner{height:68px}
}
.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(4,14,16,.96);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  display:flex;flex-direction:column;padding:24px 20px calc(24px + env(safe-area-inset-bottom));
  transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:44px;height:44px;border-radius:var(--r-btn);background:var(--glass);border:1px solid var(--line);color:var(--text-hi);cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.drawer-close svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.9}
.drawer nav{display:flex;flex-direction:column;gap:6px}
.drawer nav a{display:flex;align-items:center;min-height:48px;padding:0 16px;border-radius:var(--r-btn);color:var(--text-hi);font-size:16px;border:1px solid transparent}
.drawer nav a:hover,.drawer nav a.is-active{background:rgba(22,179,137,.10);border-color:rgba(22,179,137,.35);color:var(--primary-hover)}
.drawer-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line);font-size:13.5px;color:var(--text-low);display:flex;flex-direction:column;gap:8px}

/* ---------- 文章主体 ---------- */
main{padding-top:var(--header-h)}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13.5px;color:var(--text-low);padding:26px 0 0}
.crumb a{color:var(--text-mid)}
.crumb a:hover{color:var(--primary-hover)}
.crumb .sep{color:rgba(255,255,255,.22)}
.crumb .now{color:var(--text-hi);max-width:280px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}

.article-head{padding:22px 0 34px;border-bottom:1px solid var(--line-soft)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.4px;
  background:rgba(22,179,137,.10);border:1px solid rgba(22,179,137,.35);color:var(--primary-hover);
}
.badge-accent{background:rgba(233,191,116,.10);border-color:rgba(233,191,116,.35);color:var(--accent)}
.article-head h1{
  font-size:clamp(26px,3.4vw,42px);font-weight:700;line-height:1.3;margin:16px 0 18px;
  max-width:900px;
}
.meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-low)}
.meta-line .pt{color:rgba(255,255,255,.22)}
.meta-line time{color:var(--text-mid)}

.layout{display:grid;grid-template-columns:1fr;gap:32px;padding:36px 0 0}
@media (min-width:1024px){
  .layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px;padding-top:48px}
}
.reading{min-width:0}
.reading-inner{max-width:760px;margin:0 auto}

.paper-card{
  background:var(--paper);
  border-radius:20px;
  padding:24px;
  box-shadow:0 18px 40px rgba(0,0,0,.35);
  color:var(--ink-paper);
}
@media (min-width:768px){.paper-card{padding:36px 40px}}
.prose{font-size:16.5px;line-height:1.9;color:var(--ink-paper)}
.prose > * + *{margin-top:1.15em}
.prose p{margin:0}
.prose h2{
  position:relative;font-size:21px;font-weight:700;color:#11201F;line-height:1.4;
  margin:2em 0 .6em;padding-left:14px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:.95em;
  border-radius:2px;background:var(--primary);
}
.prose h3{font-size:18px;font-weight:650;color:#11201F;margin:1.5em 0 .5em}
.prose ul,.prose ol{padding-left:1.4em;margin:1em 0}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:.5em 0}
.prose li::marker{color:var(--primary);font-weight:600}
.prose blockquote{
  margin:1.4em 0;padding:14px 20px;border-left:3px solid var(--primary);
  background:rgba(22,179,137,.06);border-radius:0 12px 12px 0;color:#22383A;
}
.prose a{color:#0F9573;border-bottom:1px solid rgba(15,149,115,.4)}
.prose a:hover{color:#0c7a5e}
.prose img{border-radius:14px;margin:1.4em auto;height:auto}
.prose figure{margin:1.6em 0;text-align:center}
.prose figcaption{font-size:13px;color:#5C7370;margin-top:10px;text-align:center}
.prose table{width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0;display:block;overflow-x:auto;white-space:nowrap}
.prose thead th{background:rgba(22,179,137,.10);text-align:left;font-weight:650;color:#11201F}
.prose th,.prose td{border:1px solid rgba(17,32,31,.14);padding:10px 14px}
.prose tbody tr:nth-child(even){background:rgba(17,32,31,.035)}
.prose code{background:rgba(17,32,31,.08);border-radius:6px;padding:2px 6px;font-size:14.5px}
.prose pre{background:#0E262B;color:#DCEDE9;border-radius:14px;padding:18px;overflow-x:auto;font-size:14px}
.prose pre code{background:none;color:inherit;padding:0}
.prose hr{border:none;border-top:1px solid rgba(17,32,31,.14);margin:2em 0}

.empty-state{
  background:var(--glass);border:1px dashed var(--line);border-radius:var(--r-card);
  padding:52px 24px;text-align:center;color:var(--text-mid);
}
.empty-state svg{width:40px;height:40px;stroke:var(--primary);fill:none;stroke-width:1.5;margin:0 auto 16px}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{font-size:14.5px;color:var(--text-low);margin-bottom:20px}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;font-size:13px;
  background:var(--glass);border:1px solid var(--line);color:var(--text-mid);
}
.tag:hover{border-color:rgba(22,179,137,.45);color:var(--primary-hover)}

.nav-siblings{display:grid;grid-template-columns:1fr;gap:14px;margin-top:30px}
@media (min-width:640px){.nav-siblings{grid-template-columns:1fr 1fr}}
.sib-card{
  display:flex;flex-direction:column;gap:8px;padding:18px 20px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);transition:all .2s ease-out;
}
.sib-card:hover{border-color:rgba(22,179,137,.45);background:rgba(22,179,137,.06);transform:translateY(-3px)}
.sib-card .dir{font-size:12.5px;color:var(--text-low);letter-spacing:.5px}
.sib-card .ttl{font-size:15.5px;font-weight:600;color:var(--text-hi);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.sib-card.next{text-align:right}
.notice{font-size:13px;color:var(--text-low);margin-top:22px;line-height:1.7}

/* ---------- 侧栏 ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;min-width:0}
@media (min-width:1024px){.sidebar{position:sticky;top:calc(var(--header-h) + 20px);align-self:start}}
.side-panel{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:20px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.side-panel h2,.side-panel h3{font-size:14px;letter-spacing:1px;color:var(--text-hi);font-weight:650;margin-bottom:14px}
.side-list li + li{margin-top:4px}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-radius:var(--r-btn);font-size:14.5px;color:var(--text-mid)}
.side-list a:hover{background:rgba(22,179,137,.08);color:var(--text-hi)}
.side-list a.is-active{background:rgba(22,179,137,.10);color:var(--primary-hover);box-shadow:inset 3px 0 0 var(--primary)}
.side-list svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8;opacity:.65}
.side-note{font-size:13px;color:var(--text-low);line-height:1.75}
.side-cta{display:flex;flex-direction:column;gap:12px;background:linear-gradient(160deg,rgba(22,179,137,.14),rgba(255,255,255,.04));border-color:rgba(22,179,137,.32)}
.side-cta p{font-size:13.5px;color:var(--text-mid)}

/* ---------- 底部悬浮 ---------- */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:70;width:46px;height:46px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  background:rgba(255,255,255,.08);border:1px solid var(--line);color:var(--text-hi);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s ease-out;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(22,179,137,.6);color:var(--primary-hover)}
.to-top svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.9}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:88px;background:#04100F;border-top:1px solid var(--line);padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.footer-logo{display:inline-flex;align-items:center;gap:8px;font-size:18px;font-weight:700;color:var(--text-hi)}
.footer-col p{font-size:14px;color:var(--text-low);line-height:1.8;max-width:340px}
.footer-col h4{font-size:13px;letter-spacing:1.4px;color:var(--text-hi);margin-bottom:16px;font-weight:650}
.footer-col ul li + li{margin-top:10px}
.footer-col a{font-size:14px;color:var(--text-mid)}
.footer-col span{font-size:14px;color:var(--text-mid)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:12px 22px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-low);
}
.footer-bottom a{color:var(--text-mid)}
.footer-bottom a:hover{color:var(--primary-hover)}
@supports not ((backdrop-filter: blur(4px)) or (-webkit-backdrop-filter: blur(4px))){
  .brand-row,.channel-row,.side-panel,.btn-ghost,.to-top{background:rgba(10,31,35,.96)}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --ink-950:#061417;
  --ink-900:#0A1F23;
  --panel:#0E262B;
  --primary:#16B389;
  --primary-hover:#1FCFA0;
  --primary-active:#0F9573;
  --accent:#E9BF74;
  --text-hi:#EAF4F1;
  --text-mid:#A9C0BD;
  --text-low:#7E9694;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --glass:rgba(255,255,255,.05);
  --glass-strong:rgba(255,255,255,.08);
  --paper:#F4F8F6;
  --success:#35C08A;
  --warn:#E9BF74;
  --danger:#E4665C;
  --r-btn:12px;
  --r-card:18px;
  --r-panel:24px;
  --shadow-card:0 12px 32px rgba(0,0,0,.35);
  --shadow-hover:0 20px 44px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(22,179,137,.6), 0 0 24px rgba(22,179,137,.35);
  --container:1200px;
  --nav-h:132px;
  --ease:cubic-bezier(.22,.8,.28,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding:0;
  min-height:100vh;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-mid);
  background-color:var(--ink-950);
  background-image:
    radial-gradient(760px 480px at 12% -6%, rgba(22,179,137,.10), transparent 62%),
    radial-gradient(680px 520px at 96% 12%, rgba(22,179,137,.07), transparent 66%),
    linear-gradient(180deg,#061417 0%,#0A1F23 46%,#061417 100%);
  background-attachment:fixed;
  overflow-x:hidden;
  word-break:break-word;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),opacity .2s var(--ease)}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:650;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(22,179,137,.32);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:rgba(255,255,255,.03)}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(22,179,137,.5)}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .glass{background:rgba(14,38,43,.92)!important}
}

.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.container{padding-left:40px;padding-right:40px}}

/* ============ 顶部品牌行 ============ */
.site-header{position:sticky;top:0;z-index:60;transition:box-shadow .25s var(--ease),background-color .25s var(--ease)}
.site-header.is-scrolled{box-shadow:0 14px 34px rgba(0,0,0,.48)}
.topbar{
  background:rgba(6,20,23,.72);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:background-color .25s var(--ease)
}
.site-header.is-scrolled .topbar{background:rgba(6,20,23,.9)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.brand-mark{
  font-size:20px;font-weight:700;color:var(--text-hi);letter-spacing:.02em;
  display:inline-flex;align-items:center;gap:6px;line-height:1.2
}
.brand-mark::after{content:"";width:7px;height:7px;border-radius:999px;background:var(--primary);display:inline-block;box-shadow:0 0 12px rgba(22,179,137,.8)}
.brand-sub{
  font-size:12px;color:var(--text-low);border:1px solid var(--line);
  border-radius:999px;padding:2px 10px;letter-spacing:.08em;white-space:nowrap
}
.top-actions{display:flex;align-items:center;gap:12px}
.hotline{
  display:none;align-items:center;gap:8px;font-size:14px;color:var(--text-mid);
  border:1px solid var(--line);border-radius:999px;padding:7px 14px;
  font-variant-numeric:tabular-nums
}
.hotline:hover{color:var(--text-hi);border-color:rgba(22,179,137,.5);background:rgba(22,179,137,.08)}
.hotline svg{width:16px;height:16px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
@media (min-width:768px){.hotline{display:inline-flex}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;line-height:1;white-space:nowrap;
  padding:14px 24px;font-size:15px;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease)
}
.btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-primary{background:var(--primary);color:#04211A;box-shadow:var(--glow)}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(31,207,160,.7),0 0 30px rgba(31,207,160,.45)}
.btn-primary:active{background:var(--primary-active);transform:scale(.98);box-shadow:0 0 0 1px rgba(15,149,115,.6)}
.btn-ghost{background:var(--glass);color:var(--text-hi);border-color:var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}
.btn-ghost:hover{background:var(--glass-strong);border-color:rgba(22,179,137,.5);transform:translateY(-1px)}
.btn-ghost:active{transform:scale(.98)}
.btn-line{color:var(--primary);padding:0;text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px}
.btn-line:hover{color:var(--primary-hover);text-decoration-color:var(--primary-hover)}
.btn[disabled],.btn:disabled{opacity:.4;pointer-events:none}

/* ============ 频道行 ============ */
.channel-row{
  background:rgba(10,31,35,.66);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.channel-inner{
  display:flex;align-items:center;gap:6px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;padding-top:8px;padding-bottom:8px
}
.channel-inner::-webkit-scrollbar{display:none}
.channel{
  position:relative;display:inline-flex;align-items:center;flex:0 0 auto;
  padding:10px 16px;border-radius:999px;font-size:15px;color:var(--text-mid);
  min-height:44px;border:1px solid transparent
}
.channel::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:center;
  transition:transform .22s var(--ease);opacity:.9
}
.channel:hover{color:var(--text-hi);background:rgba(22,179,137,.06)}
.channel.is-active{color:var(--primary);background:rgba(22,179,137,.08);font-weight:600;box-shadow:inset 0 0 0 1px rgba(22,179,137,.18)}
.channel.is-active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(22,179,137,.6)}

/* ============ 面包屑 ============ */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);padding-top:26px}
.crumbs a{color:var(--text-mid)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{opacity:.5}
.crumbs .cur{color:var(--text-hi)}

/* ============ 窄 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:56px 56px,56px 56px;
  background-position:-1px -1px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(560px 300px at 8% 0%, rgba(22,179,137,.16), transparent 68%),
    radial-gradient(520px 320px at 92% 100%, rgba(22,179,137,.10), transparent 70%),
    linear-gradient(180deg,rgba(6,20,23,.5),rgba(6,20,23,.86));
}
.page-hero > .container{position:relative;z-index:1}
.hero-inner{padding:44px 0 40px;max-width:900px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;
  color:var(--accent);border:1px solid rgba(233,191,116,.34);background:rgba(233,191,116,.08);
  border-radius:999px;padding:5px 14px;margin-bottom:18px
}
.hero-inner h1{font-size:clamp(28px,4.4vw,46px);line-height:1.2;font-weight:700;margin-bottom:14px}
.hero-inner .lead{font-size:17px;line-height:1.85;color:var(--text-mid);max-width:720px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:20px;font-size:13px;color:var(--text-low)}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta svg{width:15px;height:15px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.pill{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-mid);
  background:var(--glass);border:1px solid var(--line);border-radius:999px;padding:8px 15px;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)
}
.pill:hover{color:var(--text-hi);border-color:rgba(22,179,137,.5);background:rgba(22,179,137,.09)}
.pill i{width:6px;height:6px;border-radius:999px;background:var(--primary);display:inline-block;box-shadow:0 0 8px rgba(22,179,137,.7)}

/* ============ 文档式主体 ============ */
.doc-wrap{padding:56px 0 72px}
@media (min-width:1024px){.doc-wrap{padding:80px 0 96px}}
.doc-layout{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:1024px){.doc-layout{grid-template-columns:248px minmax(0,1fr);gap:56px;align-items:start}}

.doc-toc{
  border:1px solid var(--line);border-radius:var(--r-panel);
  background:var(--glass);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  padding:20px 18px;box-shadow:var(--shadow-card)
}
@media (min-width:1024px){.doc-toc{position:sticky;top:calc(var(--nav-h) + 20px)}}
.doc-toc h2{font-size:13px;letter-spacing:.16em;color:var(--text-low);font-weight:600;margin-bottom:14px}
.toc-list{display:flex;flex-direction:column;gap:2px}
@media (max-width:1023px){
  .doc-toc{padding:16px}
  .toc-list{flex-direction:row;overflow-x:auto;gap:8px;scrollbar-width:none}
  .toc-list::-webkit-scrollbar{display:none}
}
.toc-item{
  position:relative;display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-mid);
  padding:10px 12px 10px 14px;border-radius:10px;border-left:2px solid transparent;
  white-space:nowrap;transition:all .2s var(--ease)
}
@media (max-width:1023px){
  .toc-item{border-left:0;border:1px solid var(--line);border-radius:999px;padding:8px 14px;font-size:13px}
}
.toc-item .num{font-size:12px;color:var(--text-low);font-variant-numeric:tabular-nums}
.toc-item:hover{color:var(--text-hi);background:rgba(22,179,137,.07)}
.toc-item.is-current{color:var(--primary);background:rgba(22,179,137,.08);border-left-color:var(--primary)}
@media (max-width:1023px){.toc-item.is-current{border-color:rgba(22,179,137,.55)}}
.toc-item.is-current .num{color:var(--primary)}

.doc-body{min-width:0}
.doc-section{padding-bottom:38px;margin-bottom:38px;border-bottom:1px solid var(--line);scroll-margin-top:calc(var(--nav-h) + 24px)}
.doc-section:last-of-type{border-bottom:0;margin-bottom:0}
.sec-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:16px}
.sec-index{
  flex:0 0 auto;font-size:13px;font-weight:700;color:var(--primary);letter-spacing:.06em;
  border:1px solid rgba(22,179,137,.35);background:rgba(22,179,137,.1);border-radius:999px;
  padding:4px 12px;font-variant-numeric:tabular-nums;margin-top:5px
}
.doc-section h2{font-size:clamp(22px,3vw,30px);line-height:1.3;font-weight:650}
.doc-section > p{font-size:16.5px;line-height:1.9;color:var(--text-mid);max-width:760px;margin-bottom:18px}

.check-list{display:grid;gap:12px;max-width:760px;margin-bottom:20px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;line-height:1.8;color:var(--text-mid)}
.check-list .ico{
  flex:0 0 auto;width:22px;height:22px;border-radius:999px;margin-top:4px;
  background:rgba(22,179,137,.12);border:1px solid rgba(22,179,137,.35);
  display:inline-flex;align-items:center;justify-content:center
}
.check-list .ico svg{width:12px;height:12px;fill:none;stroke:var(--primary);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}

.stat-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
.stat-chip{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  padding:14px 18px;min-width:150px;flex:1 1 150px;max-width:240px
}
.stat-chip .k{font-size:12px;color:var(--text-low);letter-spacing:.06em;margin-bottom:6px}
.stat-chip .v{font-size:22px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-chip .v small{font-size:13px;font-weight:500;color:var(--text-mid);margin-left:5px}

.doc-figure{
  margin:22px 0 4px;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  background:rgba(14,38,43,.7);box-shadow:var(--shadow-card);max-width:760px
}
.doc-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;background:rgba(14,38,43,.9);transition:transform .4s var(--ease)}
.doc-figure:hover img{transform:scale(1.03)}
.doc-figure figcaption{font-size:13px;color:var(--text-low);padding:12px 16px;border-top:1px solid var(--line)}

.mini-faq{display:grid;gap:10px;max-width:760px;margin-top:6px}
.mini-faq details{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);overflow:hidden
}
.mini-faq summary{
  cursor:pointer;list-style:none;padding:15px 18px;font-size:15.5px;font-weight:600;color:var(--text-hi);
  display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px
}
.mini-faq summary::-webkit-details-marker{display:none}
.mini-faq summary .chev{width:16px;height:16px;flex:0 0 auto;fill:none;stroke:var(--primary);stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .22s var(--ease)}
.mini-faq details[open] summary .chev{transform:rotate(180deg)}
.mini-faq details[open]{border-color:rgba(22,179,137,.35)}
.mini-faq .ans{padding:0 18px 16px;font-size:15px;line-height:1.9;color:var(--text-mid);border-top:1px solid var(--line);padding-top:14px;background:rgba(255,255,255,.04)}

/* ============ CTA 横幅 ============ */
.cta-band{padding:0 0 76px}
@media (min-width:1024px){.cta-band{padding:0 0 104px}}
.cta-box{
  position:relative;overflow:hidden;border:1px solid rgba(22,179,137,.28);border-radius:var(--r-panel);
  background:rgba(255,255,255,.05);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);padding:34px 26px;
  display:grid;gap:24px;align-items:center
}
@media (min-width:768px){.cta-box{padding:44px 40px;grid-template-columns:minmax(0,1fr) auto}}
.cta-box::after{
  content:"";position:absolute;right:-60px;top:-70px;width:260px;height:260px;border-radius:999px;
  background:radial-gradient(circle,rgba(22,179,137,.22),transparent 68%);pointer-events:none
}
.cta-box h2{font-size:clamp(20px,2.6vw,26px);margin-bottom:10px;position:relative;z-index:1}
.cta-box p{font-size:15px;color:var(--text-mid);max-width:620px;position:relative;z-index:1}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}
@media (max-width:767px){.cta-actions{width:100%}.cta-actions .btn{flex:1 1 auto}}

/* ============ 表单/联系 ============ */
.contact-wrap{padding:0 0 80px}
.contact-grid{display:grid;gap:24px}
@media (min-width:1024px){.contact-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:28px;align-items:start}}
.info-card{
  border:1px solid var(--line);border-radius:var(--r-panel);background:var(--glass);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  padding:26px;box-shadow:var(--shadow-card)
}
.info-card h2{font-size:20px;margin-bottom:8px}
.info-card .sub{font-size:14px;color:var(--text-low);margin-bottom:20px}
.info-list{display:grid;gap:16px}
.info-list li{display:flex;gap:12px;align-items:flex-start}
.info-list .ico{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(22,179,137,.12);border:1px solid rgba(22,179,137,.32)
}
.info-list .ico svg{width:17px;height:17px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.info-list .k{font-size:13px;color:var(--text-low);margin-bottom:2px}
.info-list .v{font-size:15px;color:var(--text-hi);font-variant-numeric:tabular-nums}
.map-ph{
  margin-top:22px;border:1px dashed rgba(22,179,137,.4);border-radius:var(--r-card);
  background:rgba(22,179,137,.06);min-height:150px;display:flex;align-items:center;justify-content:center;
  gap:10px;font-size:14px;color:var(--text-mid);text-align:center;padding:18px
}
.map-ph svg{width:20px;height:20px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.form-card{
  border:1px solid var(--line);border-radius:var(--r-panel);background:var(--paper);color:#16262A;
  padding:26px;box-shadow:var(--shadow-card)
}
.form-card h2{color:#0E2A2C;font-size:20px;margin-bottom:6px}
.form-card .sub{font-size:14px;color:#5C7674;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:#28403F;margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid rgba(14,42,44,.16);border-radius:var(--r-btn);
  background:#fff;padding:12px 14px;font-size:15px;color:#16262A;line-height:1.6;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease)
}
.field textarea{resize:vertical;min-height:120px}
.field input::placeholder,.field textarea::placeholder{color:#9AAFAE}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(22,179,137,.18)
}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--danger);box-shadow:0 0 0 4px rgba(228,102,92,.14)}
.field .err{display:none;font-size:12px;color:#C0443B;margin-top:6px}
.field.has-error .err{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:#3C5553;margin:4px 0 20px}
.check-row input{width:17px;height:17px;margin-top:3px;accent-color:var(--primary)}
.form-card .btn-primary{width:100%}
@media (min-width:768px){.form-card .btn-primary{width:auto;min-width:180px}}

/* ============ 页脚 ============ */
.site-footer{background:#04100F;border-top:1px solid var(--line);padding:56px 0 0}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}}
.footer-col h4{font-size:13px;letter-spacing:.14em;color:var(--text-low);font-weight:600;margin-bottom:16px}
.footer-col p{font-size:14px;color:var(--text-low);line-height:1.85;max-width:340px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a,.footer-col ul span{font-size:14px;color:var(--text-mid)}
.footer-col ul a:hover{color:var(--primary)}
.footer-logo{display:inline-flex;align-items:center;gap:7px;font-size:19px;font-weight:700;color:var(--text-hi)}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-low)
}
.footer-bottom a{color:var(--text-mid)}
.footer-bottom a:hover{color:var(--primary)}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:70;width:46px;height:46px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);border:1px solid var(--line);color:var(--text-hi);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 10px 26px rgba(0,0,0,.4);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s var(--ease),border-color .2s var(--ease)
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(22,179,137,.6);color:var(--primary)}
.to-top svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

@media (max-width:767px){
  .hero-inner{padding:32px 0 30px}
  .hero-inner .lead{font-size:15.5px}
  .doc-wrap{padding:40px 0 56px}
  .doc-section{padding-bottom:30px;margin-bottom:30px}
}

/* roulang page: category2 */
:root{
    --ink-950:#061417;
    --ink-900:#0A1F23;
    --panel:#0E262B;
    --primary:#16B389;
    --primary-hover:#1FCFA0;
    --primary-active:#0F9573;
    --accent:#E9BF74;
    --text-hi:#EAF4F1;
    --text-mid:#A9C0BD;
    --text-low:#7E9694;
    --line:rgba(255,255,255,.10);
    --paper:#F4F8F6;
    --success:#35C08A;
    --warn:#E9BF74;
    --error:#E4665C;
    --r-btn:12px;
    --r-card:18px;
    --r-panel:24px;
    --shadow-card:0 12px 32px rgba(0,0,0,.35);
    --shadow-card-hover:0 18px 42px rgba(0,0,0,.48);
    --glow:0 0 0 1px rgba(22,179,137,.6), 0 0 24px rgba(22,179,137,.35);
    --glass-bg:rgba(255,255,255,.06);
    --glass-line:rgba(255,255,255,.10);
    --sp-section:112px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--text-hi);
    background:
      radial-gradient(900px 520px at 10% -8%, rgba(22,179,137,.10), transparent 62%),
      radial-gradient(760px 480px at 94% 6%, rgba(22,179,137,.07), transparent 60%),
      linear-gradient(180deg,#061417 0%,#0A1F23 56%,#061417 100%);
    background-color:var(--ink-950);
    overflow-x:hidden;
    word-break:break-word;
  }
  img{max-width:100%;display:block;background:#0B1E22;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  h1{font-size:clamp(28px,4.4vw,52px);line-height:1.2;font-weight:700;letter-spacing:-.01em;}
  h2{font-size:clamp(22px,3vw,34px);line-height:1.25;font-weight:650;letter-spacing:-.01em;}
  h3{font-size:19px;line-height:1.4;font-weight:600;}
  p{color:var(--text-mid);}
  ::selection{background:rgba(22,179,137,.32);color:#fff;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
  .num{font-variant-numeric:tabular-nums;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:768px){.container{padding-left:24px;padding-right:24px;}}
  @media (min-width:1024px){.container{padding-left:40px;padding-right:40px;}}

  .glass{
    background:var(--glass-bg);
    border:1px solid var(--glass-line);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  }
  @supports not ((backdrop-filter:blur(16px)) or (-webkit-backdrop-filter:blur(16px))){
    .glass{background:rgba(14,38,43,.92);}
  }

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
    font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
    transition:background-color 200ms ease-out,transform 200ms ease-out,box-shadow 200ms ease-out,border-color 200ms ease-out,color 200ms ease-out;
  }
  .btn:active{transform:scale(.98);}
  .btn-primary{background:var(--primary);color:#04231C;box-shadow:var(--glow);}
  .btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,207,160,.7),0 0 32px rgba(22,179,137,.5);}
  .btn-primary:active{background:var(--primary-active);}
  .btn-ghost{background:rgba(255,255,255,.06);border-color:var(--glass-line);color:var(--text-hi);}
  .btn-ghost:hover{background:rgba(255,255,255,.11);border-color:rgba(22,179,137,.5);transform:translateY(-1px);}
  .btn-sm{padding:9px 16px;font-size:14px;}
  .btn-link{
    display:inline-flex;align-items:center;gap:6px;padding:0;background:none;border:0;
    color:var(--primary);font-size:14px;font-weight:600;cursor:pointer;
    text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
    transition:color 180ms ease-out,gap 180ms ease-out;
  }
  .btn-link:hover{color:var(--primary-hover);gap:10px;}
  .btn[disabled],.btn:disabled{opacity:.4;pointer-events:none;}

  /* ============ 顶栏 ============ */
  .site-header{position:sticky;top:0;z-index:60;}
  .brand-bar{
    background:rgba(6,20,23,.78);
    border-bottom:1px solid var(--line);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    transition:background-color 220ms ease-out,box-shadow 220ms ease-out;
  }
  .site-header.is-scrolled .brand-bar{background:rgba(6,20,23,.94);box-shadow:0 10px 30px rgba(0,0,0,.45);}
  .brand-inner{display:flex;align-items:center;gap:16px;min-height:66px;}
  .brand{display:inline-flex;align-items:center;gap:9px;}
  .brand-name{font-size:19px;font-weight:700;color:var(--text-hi);letter-spacing:.01em;}
  .dot{width:8px;height:8px;border-radius:999px;background:var(--primary);box-shadow:0 0 12px rgba(22,179,137,.85);flex:none;}
  .brand-sub{
    font-size:12px;color:var(--text-low);border:1px solid var(--glass-line);border-radius:999px;
    padding:3px 10px;background:rgba(255,255,255,.04);white-space:nowrap;
  }
  .brand-tools{margin-left:auto;display:flex;align-items:center;gap:10px;}
  .hotline{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--text-mid);padding:8px 12px;border-radius:999px;transition:color 180ms ease-out,background-color 180ms ease-out;}
  .hotline:hover{color:var(--text-hi);background:rgba(255,255,255,.05);}
  .icon-btn{
    display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
    border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--glass-line);
    color:var(--text-mid);cursor:pointer;transition:all 180ms ease-out;
  }
  .icon-btn:hover{color:var(--text-hi);border-color:rgba(22,179,137,.5);background:rgba(22,179,137,.10);}
  .nav-toggle{display:none;}
  .search-panel{border-bottom:1px solid var(--line);background:rgba(6,20,23,.95);display:none;}
  .search-panel.is-open{display:block;}
  .search-inner{display:flex;gap:12px;padding:14px 0;}
  .search-inner input{
    flex:1;background:rgba(255,255,255,.05);border:1px solid var(--glass-line);border-radius:var(--r-btn);
    padding:11px 14px;color:var(--text-hi);font-size:15px;
  }
  .search-inner input::placeholder{color:var(--text-low);}
  .search-inner input:focus{outline:none;border-color:rgba(22,179,137,.75);box-shadow:0 0 0 4px rgba(22,179,137,.18);}

  .channel-row{background:rgba(10,31,35,.86);border-bottom:1px solid var(--line);}
  .channel-inner{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
  .channel-inner::-webkit-scrollbar{display:none;}
  .channel{
    position:relative;flex:none;display:inline-flex;align-items:center;min-height:46px;
    padding:0 16px;font-size:15px;color:var(--text-mid);border-radius:999px;
    transition:color 180ms ease-out,background-color 180ms ease-out;
  }
  .channel::after{
    content:"";position:absolute;left:16px;right:16px;bottom:6px;height:2px;border-radius:2px;
    background:var(--primary);opacity:0;transform:scaleX(.4);transition:opacity 200ms ease-out,transform 200ms ease-out;
  }
  .channel:hover{color:var(--text-hi);background:rgba(22,179,137,.08);}
  .channel.is-active{color:var(--primary);background:rgba(22,179,137,.10);font-weight:600;}
  .channel.is-active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 12px rgba(22,179,137,.8);}

  /* 移动抽屉 */
  .drawer{position:fixed;inset:0;z-index:80;display:none;}
  .drawer.is-open{display:block;}
  .drawer-mask{position:absolute;inset:0;background:rgba(3,12,14,.72);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);}
  .drawer-panel{
    position:absolute;top:0;right:0;height:100%;width:min(86vw,340px);
    background:linear-gradient(180deg,#0A1F23,#061417);border-left:1px solid var(--line);
    padding:22px 20px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
  }
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;
    border-radius:var(--r-btn);color:var(--text-mid);font-size:16px;border:1px solid transparent;
    transition:all 180ms ease-out;
  }
  .drawer-link:hover{color:var(--text-hi);background:rgba(255,255,255,.06);}
  .drawer-link.is-active{color:var(--primary);background:rgba(22,179,137,.12);border-color:rgba(22,179,137,.35);font-weight:600;}

  /* ============ 面包屑 ============ */
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-low);padding-top:26px;}
  .crumb a{color:var(--text-mid);transition:color 180ms ease-out;}
  .crumb a:hover{color:var(--primary);}
  .crumb span.sep{color:rgba(255,255,255,.22);}

  /* ============ Hero ============ */
  .hero{position:relative;padding:34px 0 84px;overflow:hidden;}
  .hero::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
    background-size:64px 64px;
    mask-image:radial-gradient(720px 460px at 28% 22%,#000 12%,transparent 78%);
    -webkit-mask-image:radial-gradient(720px 460px at 28% 22%,#000 12%,transparent 78%);
  }
  .hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
  .hero-copy .eyebrow{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--accent);
    border:1px solid rgba(233,191,116,.35);background:rgba(233,191,116,.08);
    border-radius:999px;padding:5px 12px;margin-bottom:18px;
  }
  .hero-copy h1{margin-bottom:16px;max-width:20ch;}
  .hero-sub{font-size:16px;color:var(--text-mid);max-width:52ch;margin-bottom:26px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
  .hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
  .badge{
    display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-mid);
    border:1px solid var(--glass-line);background:rgba(255,255,255,.05);border-radius:999px;padding:6px 13px;
  }
  .badge svg{color:var(--primary);flex:none;}
  .hero-media{position:relative;}
  .hero-media img{
    width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-panel);
    border:1px solid var(--glass-line);box-shadow:var(--shadow-card);
  }
  .hero-float{
    position:absolute;left:-22px;bottom:-26px;display:flex;gap:22px;
    padding:16px 20px;border-radius:var(--r-card);
    background:rgba(14,38,43,.86);border:1px solid var(--glass-line);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:var(--shadow-card);
  }
  .hero-float div{display:flex;flex-direction:column;gap:2px;}
  .hero-float .n{font-size:22px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2;}
  .hero-float .t{font-size:12px;color:var(--text-low);}

  /* ============ 通用板块 ============ */
  .section{padding-top:var(--sp-section);}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px;}
  .section-head .lead{margin-top:12px;max-width:62ch;font-size:15px;color:var(--text-mid);}
  .section-head.center{flex-direction:column;align-items:center;text-align:center;}
  .section-head.center .lead{text-align:center;}

  /* ============ 专题卡片网格 ============ */
  .topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .topic-card{
    display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-card);
    background:rgba(255,255,255,.05);border:1px solid var(--glass-line);
    box-shadow:var(--shadow-card);
    transition:transform 200ms ease-out,box-shadow 200ms ease-out,border-color 200ms ease-out;
  }
  .topic-card:hover{transform:translateY(-4px);border-color:rgba(22,179,137,.45);box-shadow:var(--shadow-card-hover),0 0 0 1px rgba(22,179,137,.35);}
  .topic-card .thumb{position:relative;overflow:hidden;}
  .topic-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 400ms ease-out;}
  .topic-card:hover .thumb img{transform:scale(1.04);}
  .chip{
    display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:4px 11px;border-radius:999px;
    background:rgba(22,179,137,.12);border:1px solid rgba(22,179,137,.35);color:#8FE7C9;white-space:nowrap;
  }
  .chip-accent{background:rgba(233,191,116,.10);border-color:rgba(233,191,116,.35);color:var(--accent);}
  .thumb .chip{position:absolute;left:14px;top:14px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);}
  .topic-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .topic-body p{font-size:14px;color:var(--text-mid);}
  .topic-body .btn-link{margin-top:auto;}
  .topic-card--feature{grid-column:span 2;flex-direction:row;}
  .topic-card--feature .thumb{flex:1 1 52%;min-height:100%;}
  .topic-card--feature .thumb img{height:100%;aspect-ratio:auto;min-height:260px;}
  .topic-card--feature .topic-body{flex:1 1 48%;padding:30px 30px 30px 26px;justify-content:center;}
  .topic-card--feature h3{font-size:clamp(20px,2.2vw,24px);}

  /* ============ 要点速览 ============ */
  .brief-wrap{
    border-radius:var(--r-panel);border:1px solid var(--glass-line);
    background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.03));
    padding:36px 32px;
  }
  .brief-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;}
  .brief-item{display:flex;flex-direction:column;gap:10px;padding-right:22px;border-right:1px solid var(--line);}
  .brief-item:last-child{border-right:0;padding-right:0;}
  .brief-item svg{color:var(--primary);}
  .brief-item h3{font-size:16px;}
  .brief-item p{font-size:13.5px;color:var(--text-low);}

  /* ============ 阅读顺序 ============ */
  .step-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .step-card{
    padding:28px 24px;border-radius:var(--r-card);
    background:rgba(255,255,255,.04);border:1px solid var(--glass-line);
    transition:background-color 200ms ease-out,border-color 200ms ease-out,transform 200ms ease-out;
  }
  .step-card:hover{background:rgba(22,179,137,.07);border-color:rgba(22,179,137,.35);transform:translateY(-3px);}
  .step-no{font-size:14px;font-weight:700;letter-spacing:.14em;color:var(--accent);margin-bottom:14px;display:block;font-variant-numeric:tabular-nums;}
  .step-card h3{margin-bottom:10px;}
  .step-card p{font-size:14px;}

  /* ============ FAQ ============ */
  .faq-wrap{max-width:880px;margin:0 auto;}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 4px;font-size:16.5px;font-weight:600;color:var(--text-hi);
    transition:color 180ms ease-out;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--primary);}
  .faq-item summary .caret{
    flex:none;width:30px;height:30px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--glass-line);background:rgba(255,255,255,.05);color:var(--primary);
    transition:transform 220ms ease-out,background-color 200ms ease-out;
  }
  .faq-item[open] summary .caret{transform:rotate(180deg);background:rgba(22,179,137,.14);}
  .faq-answer{padding:0 4px 22px;background:linear-gradient(180deg,rgba(255,255,255,.04),transparent);}
  .faq-answer p{font-size:15px;line-height:1.9;color:var(--text-mid);}

  /* ============ 联系条 ============ */
  .cta-band{
    margin-top:var(--sp-section);
    border-radius:var(--r-panel);
    border:1px solid rgba(22,179,137,.35);
    background:
      radial-gradient(620px 320px at 12% 0%, rgba(22,179,137,.16), transparent 66%),
      linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
    padding:44px 36px;
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
    box-shadow:var(--shadow-card);
  }
  .cta-band h2{font-size:clamp(21px,2.6vw,30px);margin-bottom:10px;}
  .cta-band p{max-width:56ch;font-size:15px;}
  .cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
  .cta-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:18px;font-size:13px;color:var(--text-low);}
  .cta-meta span{display:inline-flex;align-items:center;gap:7px;}
  .cta-meta svg{color:var(--primary);}

  /* ============ 页脚 ============ */
  .site-footer{margin-top:96px;background:var(--ink-950);border-top:1px solid var(--line);padding:64px 0 28px;}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
  .footer-logo{display:inline-flex;align-items:center;gap:8px;font-size:19px;font-weight:700;color:var(--text-hi);}
  .footer-col h4{
    font-size:13px;letter-spacing:.12em;color:var(--text-low);font-weight:600;
    margin-bottom:16px;text-transform:uppercase;
  }
  .footer-col ul li{margin-bottom:10px;}
  .footer-col ul li a,.footer-col ul li span{font-size:14px;color:var(--text-mid);transition:color 180ms ease-out;}
  .footer-col ul li a:hover{color:var(--primary);}
  .footer-col > p{font-size:14px;color:var(--text-mid);max-width:38ch;}
  .footer-bottom{
    margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
    font-size:13px;color:var(--text-low);
  }
  .footer-bottom a{color:var(--text-mid);transition:color 180ms ease-out;}
  .footer-bottom a:hover{color:var(--primary);}

  /* ============ 返回顶部 ============ */
  .to-top{
    position:fixed;right:20px;bottom:26px;z-index:70;
    width:46px;height:46px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
    background:rgba(14,38,43,.86);border:1px solid var(--glass-line);color:var(--text-hi);cursor:pointer;
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    opacity:0;visibility:hidden;transform:translateY(10px);
    transition:opacity 220ms ease-out,transform 220ms ease-out,visibility 220ms ease-out,border-color 200ms ease-out;
  }
  .to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
  .to-top:hover{border-color:rgba(22,179,137,.6);color:var(--primary);}

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    :root{--sp-section:88px;}
    .hero-grid{grid-template-columns:1fr;gap:34px;}
    .hero-media{order:2;}
    .hero-float{position:static;left:auto;bottom:auto;margin-top:16px;justify-content:space-around;}
    .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .topic-card--feature{grid-column:span 2;flex-direction:column;}
    .topic-card--feature .thumb img{aspect-ratio:16/9;min-height:0;}
    .brief-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
    .brief-item{border-right:0;padding-right:0;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  }
  @media (max-width:768px){
    :root{--sp-section:64px;}
    .hotline span.num-text{display:none;}
    .brand-sub{display:none;}
    .nav-toggle{display:inline-flex;}
    .brand-tools .btn-primary{display:none;}
    .channel-inner{padding-left:4px;}
    .step-grid{grid-template-columns:1fr;}
    .hero{padding-bottom:60px;}
  }
  @media (max-width:520px){
    body{font-size:15.5px;}
    .topic-grid{grid-template-columns:1fr;}
    .topic-card--feature{grid-column:span 1;}
    .brief-grid{grid-template-columns:1fr;}
    .brief-wrap{padding:26px 20px;}
    .cta-band{padding:30px 22px;}
    .cta-band .cta-actions{width:100%;}
    .cta-band .cta-actions .btn{flex:1 1 100%;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }