/* roulang page: index */
:root{
  --bg-900:#070C16;
  --bg-800:#0B1424;
  --bg-700:#101C30;
  --brand:#3A7BFD;
  --brand-2:#17C3B2;
  --accent:#FFB454;
  --t1:#EAF0FA;
  --t2:#A8B6CC;
  --t3:#6E7F98;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 12px 32px rgba(3,8,20,.45);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-900);
  color:var(--t2);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;line-height:1.28}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ============ 顶部白色导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid #E6EAF2;
  box-shadow:0 1px 2px rgba(15,23,42,.06);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--nav-h)}
.logo{display:flex;align-items:center;gap:10px;color:#0F172A;font-weight:800;font-size:16px;letter-spacing:.01em;flex-shrink:0}
.logo-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(140deg,#3A7BFD,#17C3B2);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(58,123,253,.32)}
.logo-mark svg{width:18px;height:18px;stroke:#fff}
.logo small{display:block;font-size:11px;font-weight:500;color:#6B7A93;letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{position:relative;display:inline-block;padding:8px 12px;border-radius:9px;color:#334155;font-size:14.5px;font-weight:500;transition:background .2s ease,color .2s ease}
.nav-link:hover{background:#F4F6FA;color:#0F172A}
.nav-link.is-active{color:#0F172A;font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:-3px;height:2px;border-radius:2px;background:var(--brand)}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search-box{display:flex;align-items:center;height:38px;padding:0 4px 0 12px;background:#F4F6FA;border:1px solid #E6EAF2;border-radius:999px;transition:border-color .2s ease,box-shadow .2s ease}
.search-box:focus-within{border-color:#B9CBF3;box-shadow:0 0 0 3px rgba(58,123,253,.12)}
.search-box input{border:0;background:transparent;outline:none;font-size:13.5px;color:#0F172A;width:150px}
.search-box input::placeholder{color:#8A99B0}
.search-box button{width:30px;height:30px;border:0;border-radius:999px;background:var(--brand);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:filter .2s ease}
.search-box button:hover{filter:brightness(1.1)}
.search-box button svg{width:15px;height:15px;stroke:#fff}
.btn-ghost-nav{border:1px solid #DCE3EF;background:#fff;color:#25324A;font-size:14px;font-weight:600;padding:8px 16px;border-radius:999px;cursor:pointer;transition:.2s}
.btn-ghost-nav:hover{border-color:#B9CBF3;color:#1B4BC4;background:#F7F9FE}
.btn-nav-cta{background:var(--brand);color:#fff;font-size:14px;font-weight:700;padding:9px 18px;border-radius:999px;border:0;cursor:pointer;box-shadow:0 0 0 1px rgba(255,180,84,.55),0 6px 16px rgba(58,123,253,.26);transition:transform .2s ease,filter .2s ease}
.btn-nav-cta:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-nav-cta:active{transform:scale(.98)}
.menu-toggle{display:none;width:40px;height:40px;border:1px solid #E6EAF2;background:#F7F9FD;border-radius:12px;align-items:center;justify-content:center;cursor:pointer}
.menu-toggle svg{width:20px;height:20px;stroke:#25324A}
.mobile-panel{display:none;padding:0 20px 18px}
.mobile-panel.open{display:block}
.mobile-inner{background:#fff;border:1px solid #E6EAF2;border-radius:16px;box-shadow:0 16px 40px rgba(15,23,42,.12);padding:14px}
.mobile-inner .nav-link{display:block;padding:11px 12px;border-radius:10px;font-size:15px}
.mobile-inner .search-box{width:100%;margin:6px 0 10px}
.mobile-inner .search-box input{width:100%}
.mobile-inner .btn-nav-cta{display:block;text-align:center;margin-top:8px}
@media (max-width:1023px){
  .main-nav{display:none}
  .nav-right .search-box,.nav-right .btn-ghost-nav,.nav-right .btn-nav-cta{display:none}
  .menu-toggle{display:flex}
}

/* ============ 白到深色过渡 ============ */
.header-fade{height:46px;background:linear-gradient(180deg,#EDF1F8 0%,#141C2C 42%,var(--bg-900) 100%)}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:16px 0 72px;
  background:
    radial-gradient(1100px 460px at 76% -14%, rgba(58,123,253,.18), transparent 62%),
    radial-gradient(820px 400px at 8% 6%, rgba(23,195,178,.12), transparent 60%);
  overflow:hidden;
}
.hero h1{font-size:clamp(28px,4.2vw,50px);line-height:1.15;letter-spacing:-.01em;font-weight:800;color:var(--t1)}
.hero-sub{margin-top:18px;font-size:clamp(15px,1.5vw,17px);color:var(--t2);max-width:56ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 24px;font-size:15px;font-weight:600;border:0;cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,filter .2s ease,background .2s ease,border-color .2s ease}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 0 0 1px rgba(58,123,253,.5),0 10px 30px rgba(58,123,253,.35)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(58,123,253,.6),0 14px 38px rgba(58,123,253,.45)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:rgba(255,255,255,.06);border:1px solid var(--line-strong);color:var(--t1);backdrop-filter:blur(10px)}
.btn-ghost:hover{background:rgba(58,123,253,.16);border-color:rgba(58,123,253,.48);transform:translateY(-1px)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line);font-size:13px;color:var(--t2)}
.chip svg{width:14px;height:14px;stroke:var(--brand-2)}
.glass{background:rgba(255,255,255,.06);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-panel{padding:22px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.panel-head h2{font-size:16px;color:var(--t1)}
.panel-head .live{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--brand-2)}
.live-dot{width:7px;height:7px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 0 4px rgba(23,195,178,.18)}
.roadmap{display:flex;flex-direction:column;gap:4px;margin:0 0 16px}
.rm-item{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.09)}
.rm-item:last-child{border-bottom:0}
.rm-tag{flex-shrink:0;font-size:11.5px;font-weight:700;letter-spacing:.04em;color:#0B1424;background:var(--accent);border-radius:999px;padding:2px 9px;margin-top:3px}
.rm-tag.done{background:var(--brand-2);color:#04211E}
.rm-tag.next{background:rgba(255,255,255,.16);color:var(--t1)}
.rm-body strong{display:block;color:var(--t1);font-size:14.5px;font-weight:600}
.rm-body span{font-size:13px;color:var(--t3)}
.hero-figure{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);aspect-ratio:16/9;background:#0d1728}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure figcaption{position:absolute;left:0;right:0;bottom:0;padding:22px 14px 10px;font-size:12px;color:#DCE6F6;background:linear-gradient(180deg,rgba(7,12,22,0),rgba(7,12,22,.82))}
.subscribe-inline{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap}
.subscribe-inline input{flex:1 1 160px;min-width:0;height:42px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(255,255,255,.05);color:var(--t1);padding:0 16px;font-size:14px;outline:none;transition:border-color .2s ease}
.subscribe-inline input::placeholder{color:var(--t3)}
.subscribe-inline input:focus{border-color:rgba(58,123,253,.6)}

/* ============ 通用板块 ============ */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:88px 0}}
.section--alt{background:var(--bg-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:34px}
.eyebrow{display:inline-flex;align-items:center;gap:7px;padding:4px 13px;border-radius:999px;font-size:12.5px;letter-spacing:.05em;color:#FFD9A8;background:rgba(255,180,84,.12);border:1px solid rgba(255,180,84,.3)}
.section-title{font-size:clamp(22px,2.6vw,34px);margin:16px 0 12px}
.section-desc{font-size:15.5px;color:var(--t2);max-width:72ch}
.grid-3{display:grid;gap:20px;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{display:grid;gap:20px;grid-template-columns:repeat(2,1fr)}
@media (min-width:1024px){.grid-4{grid-template-columns:repeat(4,1fr)}}

/* 卖点三连 */
.feat-card{padding:26px 24px;border-radius:var(--radius);background:rgba(255,255,255,.05);border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .25s ease,border-color .25s ease,background .25s ease}
.feat-card:hover{transform:translateY(-4px);border-color:rgba(58,123,253,.45);background:rgba(255,255,255,.07)}
.icon-box{width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;background:rgba(58,123,253,.16);border:1px solid rgba(58,123,253,.32);margin-bottom:16px}
.icon-box svg{width:21px;height:21px;stroke:var(--brand)}
.icon-box.teal{background:rgba(23,195,178,.14);border-color:rgba(23,195,178,.32)}
.icon-box.teal svg{stroke:var(--brand-2)}
.icon-box.amber{background:rgba(255,180,84,.14);border-color:rgba(255,180,84,.32)}
.icon-box.amber svg{stroke:var(--accent)}
.feat-card h3{font-size:18px;margin-bottom:10px}
.feat-card p{font-size:14.5px;color:var(--t2)}

/* 指标条带 */
.metric-card{padding:22px 20px;border-radius:var(--radius);background:rgba(255,255,255,.05);border:1px solid var(--line);transition:transform .25s ease,border-color .25s ease}
.metric-card:hover{transform:translateY(-4px);border-color:rgba(23,195,178,.42)}
.metric-num{font-size:clamp(26px,3vw,38px);font-weight:800;color:var(--brand-2);font-variant-numeric:tabular-nums;line-height:1.1}
.metric-label{margin-top:6px;font-size:14px;color:var(--t1);font-weight:600}
.metric-note{margin-top:4px;font-size:13px;color:var(--t3)}
.bars{display:flex;align-items:flex-end;gap:10px;height:110px;margin-top:18px}
.bar{flex:1;border-radius:7px 7px 0 0;background:linear-gradient(180deg,rgba(58,123,253,.9),rgba(58,123,253,.18));transition:filter .2s ease}
.bar:nth-child(2n){background:linear-gradient(180deg,rgba(23,195,178,.85),rgba(23,195,178,.16))}
.bar:hover{filter:brightness(1.18)}
.bar-axis{display:flex;gap:10px;margin-top:8px;font-size:12px;color:var(--t3)}
.bar-axis span{flex:1;text-align:center}

/* 服务矩阵 bento */
.bento{display:grid;gap:18px;grid-template-columns:1fr}
@media (min-width:640px){.bento{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.bento{grid-template-columns:repeat(4,1fr)}}
.bento-card{position:relative;padding:24px;border-radius:var(--radius);background:rgba(255,255,255,.05);border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .25s ease,border-color .25s ease}
.bento-card:hover{transform:translateY(-4px);border-color:rgba(58,123,253,.45)}
.bento-card h3{font-size:18px;margin:14px 0 8px}
.bento-card p{font-size:14px;color:var(--t2)}
.bento-arrow{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.5px;color:var(--brand);font-weight:600}
.bento-card:hover .bento-arrow{color:#8FB6FF}
.bento-large{grid-column:span 1;padding:0;overflow:hidden;display:flex;flex-direction:column}
@media (min-width:640px){.bento-large{grid-column:span 2;grid-row:span 2}}
.bento-large img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.bento-large .bento-large-body{padding:24px;background:rgba(255,255,255,.04)}

/* 入口矩阵 */
.entry-grid{display:grid;gap:14px;grid-template-columns:repeat(2,1fr)}
@media (min-width:768px){.entry-grid{grid-template-columns:repeat(4,1fr)}}
.entry{padding:16px 18px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid var(--line);font-size:14.5px;font-weight:600;color:var(--t1);display:flex;align-items:center;justify-content:space-between;gap:10px;transition:.22s}
.entry:hover{background:rgba(58,123,253,.14);border-color:rgba(58,123,253,.45);transform:translateY(-2px)}
.entry span.dot{width:7px;height:7px;border-radius:50%;background:var(--brand)}
.entry.is-channel span.dot{background:var(--accent)}

/* 资讯卡 */
.news-card{display:flex;flex-direction:column;background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,border-color .25s ease,background .25s ease}
.news-card:hover{transform:translateY(-4px);border-color:rgba(58,123,253,.45);background:rgba(255,255,255,.07)}
.thumb{aspect-ratio:3/2;overflow:hidden;background:#0d1728}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .thumb img{transform:scale(1.04)}
.news-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:9px;flex:1}
.badge{display:inline-flex;align-items:center;align-self:flex-start;padding:3px 11px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-amber{color:#FFD9A8;background:rgba(255,180,84,.14);border:1px solid rgba(255,180,84,.34)}
.badge-teal{color:#9BF2E8;background:rgba(23,195,178,.14);border:1px solid rgba(23,195,178,.34)}
.news-title{font-size:16.5px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-excerpt{font-size:13.5px;color:var(--t3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;font-size:12.5px;color:var(--t3);font-variant-numeric:tabular-nums}
.empty-state{border:1px dashed rgba(255,255,255,.2);border-radius:var(--radius);padding:52px 20px;text-align:center;color:var(--t3);font-size:14.5px;background:rgba(255,255,255,.03)}
.link-more{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--brand);transition:color .2s ease,gap .2s ease}
.link-more:hover{color:#8FB6FF;gap:11px}

/* 对比 */
.compare-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.compare-grid{grid-template-columns:1fr 1fr}}
.compare-card{padding:26px 24px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(255,255,255,.04)}
.compare-card.win{background:rgba(58,123,253,.10);border-color:rgba(58,123,253,.38);box-shadow:0 0 0 1px rgba(58,123,253,.16),var(--shadow)}
.compare-card h3{font-size:17px;margin-bottom:16px}
.compare-row{display:flex;gap:12px;align-items:flex-start;padding:11px 12px;border-radius:12px;font-size:14.2px;transition:background .2s ease}
.compare-row:hover{background:rgba(58,123,253,.08)}
.compare-row + .compare-row{border-top:1px solid rgba(255,255,255,.06)}
.compare-row svg{width:16px;height:16px;flex-shrink:0;margin-top:5px}
.muted-ico{stroke:#6E7F98}
.ok-ico{stroke:var(--brand-2)}

/* 时间线 */
.timeline{display:grid;gap:18px;grid-template-columns:1fr}
@media (min-width:1024px){.timeline{grid-template-columns:repeat(4,1fr)}}
.tl-item{position:relative;padding:22px 20px;border-radius:var(--radius);background:rgba(255,255,255,.05);border:1px solid var(--line);transition:.25s}
.tl-item:hover{border-color:rgba(23,195,178,.42);transform:translateY(-3px)}
.tl-dot{width:12px;height:12px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 0 5px rgba(23,195,178,.16);margin-bottom:14px}
.tl-stage{font-size:12.5px;color:var(--accent);font-weight:700;letter-spacing:.06em}
.tl-item h3{font-size:16.5px;margin:8px 0 8px}
.tl-item p{font-size:13.8px;color:var(--t2)}

/* 专题卡 */
.topic-card{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.topic-card img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;transition:transform .35s ease}
.topic-card:hover img{transform:scale(1.05)}
.topic-mask{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:18px;background:linear-gradient(180deg,rgba(7,12,22,.05),rgba(7,12,22,.88))}
.topic-mask h3{font-size:16.5px;margin-bottom:6px}
.topic-mask p{font-size:13px;color:#C7D3E6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 城市 */
.city-tags{display:flex;flex-wrap:wrap;gap:10px}
.city-tag{padding:7px 15px;border-radius:999px;font-size:13.5px;color:var(--t2);background:rgba(255,255,255,.05);border:1px solid var(--line);transition:.2s}
.city-tag:hover{color:var(--t1);background:rgba(58,123,253,.16);border-color:rgba(58,123,253,.42);transform:translateY(-2px)}
.city-card{padding:22px 20px;border-radius:var(--radius);background:rgba(255,255,255,.05);border:1px solid var(--line);transition:.25s}
.city-card:hover{transform:translateY(-4px);border-color:rgba(255,180,84,.42)}
.city-card h3{font-size:18px;margin-bottom:8px}
.city-card p{font-size:13.8px;color:var(--t2)}

/* 保障 */
.guard-card{display:flex;gap:14px;padding:20px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid var(--line)}
.guard-card h3{font-size:16px;margin-bottom:6px}
.guard-card p{font-size:13.6px;color:var(--t2)}
.notice-bar{display:flex;gap:14px;align-items:flex-start;margin-top:26px;padding:18px 20px;border-radius:14px;border:1px solid rgba(255,180,84,.32);background:rgba(255,180,84,.08);font-size:14px;color:#FFE3BC}
.notice-bar svg{width:20px;height:20px;stroke:var(--accent);flex-shrink:0;margin-top:2px}

/* 权益档位 */
.tier{padding:26px 24px;border-radius:var(--radius);background:rgba(255,255,255,.05);border:1px solid var(--line);display:flex;flex-direction:column;transition:.25s}
.tier:hover{transform:translateY(-4px);border-color:rgba(58,123,253,.42)}
.tier.recommend{background:rgba(58,123,253,.12);border-color:rgba(255,180,84,.4);box-shadow:0 0 0 1px rgba(255,180,84,.22),var(--shadow)}
.tier h3{font-size:18px;display:flex;align-items:center;gap:10px;margin-bottom:6px}
.tier .tier-sub{font-size:13.5px;color:var(--t3);margin-bottom:16px}
.tier ul{display:flex;flex-direction:column;gap:10px;font-size:14rem;color:var(--t2)}
.tier li{display:flex;gap:9px;align-items:flex-start;font-size:14px}
.tier li svg{width:15px;height:15px;stroke:var(--brand-2);flex-shrink:0;margin-top:5px}
.tier .btn{margin-top:22px;width:100%}

/* FAQ */
.faq-wrap{display:grid;gap:26px;grid-template-columns:1fr}
@media (min-width:1024px){.faq-wrap{grid-template-columns:340px 1fr;gap:40px}}
.faq-side{position:relative}
@media (min-width:1024px){.faq-side{position:sticky;top:96px;align-self:start}}
.faq-item{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.04);margin-bottom:12px;overflow:hidden;transition:border-color .25s ease,background .25s ease}
.faq-item[open]{border-color:rgba(58,123,253,.45);background:rgba(58,123,253,.08)}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 46px 16px 18px;font-size:15.2px;font-weight:600;color:var(--t1);position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";position:absolute;right:18px;top:22px;width:8px;height:8px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(45deg);transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-answer{padding:0 18px 18px;font-size:14.2px;color:var(--t2)}

/* 下载 */
.download-grid{display:grid;gap:26px;grid-template-columns:1fr;align-items:center}
@media (min-width:1024px){.download-grid{grid-template-columns:1.35fr .65fr}}
.dl-cards{display:grid;gap:14px;grid-template-columns:1fr;margin-top:24px}
@media (min-width:640px){.dl-cards{grid-template-columns:repeat(3,1fr)}}
.dl-card{display:flex;flex-direction:column;gap:8px;padding:20px;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid var(--line);transition:.25s}
.dl-card:hover{transform:translateY(-4px);border-color:rgba(58,123,253,.5);background:rgba(58,123,253,.1)}
.dl-card svg{width:24px;height:24px;stroke:var(--brand)}
.dl-card strong{font-size:15.5px;color:var(--t1)}
.dl-card small{font-size:12.5px;color:var(--t3)}
.phone-frame{position:relative;border-radius:26px;overflow:hidden;border:1px solid var(--line-strong);aspect-ratio:9/19;max-width:280px;margin:0 auto;background:#0d1728;box-shadow:var(--shadow)}
.phone-frame img{width:100%;height:100%;object-fit:cover}

/* 表单 */
.join-grid{display:grid;gap:26px;grid-template-columns:1fr}
@media (min-width:1024px){.join-grid{grid-template-columns:1.2fr .8fr}}
.form-card{padding:26px 24px;border-radius:var(--radius);background:rgba(255,255,255,.06);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.12);box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--t1);font-weight:600;margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border-radius:12px;border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);color:var(--t1);font-size:14.5px;font-family:inherit;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{resize:vertical;min-height:96px}
.field input::placeholder,.field textarea::placeholder{color:var(--t3)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(58,123,253,.65);box-shadow:0 0 0 3px rgba(58,123,253,.16)}
.check-line{display:flex;gap:10px;align-items:flex-start;font-size:13.4px;color:var(--t2);margin:6px 0 18px}
.check-line input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand);flex-shrink:0}
.form-msg{display:none;margin-top:14px;padding:12px 14px;border-radius:12px;font-size:13.8px;color:#9BF2E8;background:rgba(23,195,178,.12);border:1px solid rgba(23,195,178,.34)}
.form-msg.show{display:block}
.side-note{display:flex;flex-direction:column;gap:16px;padding:26px 24px}
.side-note h3{font-size:18px}
.side-note p{font-size:14px;color:var(--t2)}

/* 订阅条 */
.subscribe-bar{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;padding:24px;border-radius:var(--radius);background:rgba(255,255,255,.06);backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.12)}
.subscribe-bar form{display:flex;gap:10px;flex-wrap:wrap;flex:1 1 320px}
.subscribe-bar input{flex:1 1 200px;min-width:0;height:46px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(255,255,255,.05);color:var(--t1);padding:0 18px;font-size:14.5px;outline:none}
.subscribe-bar input::placeholder{color:var(--t3)}
.subscribe-bar input:focus{border-color:rgba(58,123,253,.6)}

/* 页脚 */
.site-footer{background:var(--bg-900);border-top:1px solid var(--line);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}}
.footer-title{font-size:14px;color:var(--t1);font-weight:700;margin-bottom:14px;letter-spacing:.04em}
.footer-brand p{font-size:13.5px;color:var(--t3);margin-top:12px;max-width:34ch}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.5px;color:var(--t2);transition:color .2s ease}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{margin-top:40px;border-top:1px solid var(--line);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.8px;color:var(--t3)}

/* 移动微调 */
@media (max-width:640px){
  .hero{padding-bottom:52px}
  .hero-panel{padding:18px}
  .faq-item summary{font-size:14.6px}
  .subscribe-bar{padding:20px}
}

/* roulang page: article */
:root{
  --bg-900:#070C16;
  --bg-800:#0B1424;
  --bg-700:#101C30;
  --brand:#3A7BFD;
  --brand-2:#17C3B2;
  --accent:#FFB454;
  --t1:#EAF0FA;
  --t2:#A8B6CC;
  --t3:#6E7F98;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 12px 32px rgba(3,8,20,.45);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-900);
  color:var(--t2);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
/* ============ 顶部白色导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid #E6EAF2;
  box-shadow:0 1px 2px rgba(15,23,42,.06);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--nav-h)}
.logo{display:flex;align-items:center;gap:10px;color:#0F172A;font-weight:800;font-size:16px;letter-spacing:.01em;flex-shrink:0}
.logo-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(140deg,#3A7BFD,#17C3B2);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(58,123,253,.32);flex-shrink:0}
.logo-mark svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.logo small{display:block;font-size:11px;font-weight:500;color:#6B7A93;letter-spacing:.06em}
.main-nav{display:none;align-items:center;gap:2px}
.nav-link{position:relative;display:inline-block;padding:8px 12px;border-radius:9px;color:#334155;font-size:14.5px;font-weight:500;transition:background .2s ease,color .2s ease}
.nav-link:hover{background:#F4F6FA;color:#0F172A}
.nav-link.is-active{color:#0F172A;font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:-3px;height:2px;border-radius:2px;background:var(--brand)}
.nav-right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search-box{display:flex;align-items:center;height:38px;padding:0 4px 0 12px;background:#F4F6FA;border:1px solid #E6EAF2;border-radius:999px;transition:border-color .2s ease,box-shadow .2s ease}
.search-box:focus-within{border-color:#B9CBF3;box-shadow:0 0 0 3px rgba(58,123,253,.12)}
.search-box input{border:0;background:transparent;outline:none;font-size:13.5px;color:#0F172A;width:150px}
.search-box input::placeholder{color:#8A99B0}
.search-box button{width:30px;height:30px;border:0;border-radius:999px;background:var(--brand);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:filter .2s ease}
.search-box button:hover{filter:brightness(1.1)}
.search-box button svg{width:15px;height:15px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.btn-ghost-nav{display:none;border:1px solid #DCE3EF;background:#fff;color:#25324A;font-size:14px;font-weight:600;padding:8px 16px;border-radius:999px;cursor:pointer;transition:.2s}
.btn-ghost-nav:hover{border-color:#B9CBF3;color:#1B4BC4;background:#F7F9FE}
.btn-nav-cta{display:none;background:var(--brand);color:#fff;font-size:14px;font-weight:700;padding:9px 18px;border-radius:999px;border:0;cursor:pointer;box-shadow:0 0 0 1px rgba(255,180,84,.55),0 6px 16px rgba(58,123,253,.26);transition:transform .2s ease,filter .2s ease}
.btn-nav-cta:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-nav-cta:active{transform:scale(.98)}
.nav-right .search-box{display:none}
.menu-toggle{display:flex;width:40px;height:40px;border:1px solid #E6EAF2;background:#F7F9FD;border-radius:12px;align-items:center;justify-content:center;cursor:pointer}
.menu-toggle svg{width:20px;height:20px;stroke:#25324A;fill:none;stroke-width:2;stroke-linecap:round}
.mobile-panel{display:none;padding:0 20px 18px}
.mobile-panel.open{display:block}
.mobile-inner{background:#fff;border:1px solid #E6EAF2;border-radius:16px;box-shadow:0 16px 40px rgba(15,23,42,.12);padding:14px}
.mobile-inner .nav-link{display:block;padding:11px 12px;border-radius:10px;font-size:15px}
.mobile-inner .nav-link.is-active::after{display:none}
.mobile-inner .search-box{width:100%;margin:6px 0 10px}
.mobile-inner .search-box input{width:100%}
.mobile-inner .btn-nav-cta{display:block;text-align:center;margin-top:10px}
@media (min-width:1024px){
  .main-nav{display:flex}
  .nav-right .search-box,.nav-right .btn-ghost-nav,.nav-right .btn-nav-cta{display:flex}
  .menu-toggle{display:none}
  .mobile-panel{display:none !important}
}
.header-fade{height:46px;background:linear-gradient(180deg,#EDF1F8 0%,#141C2C 42%,var(--bg-900) 100%)}
/* ============ 通用组件 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 24px;font-size:15px;font-weight:600;border:0;cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,filter .2s ease,background .2s ease,border-color .2s ease}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 0 0 1px rgba(58,123,253,.5),0 10px 30px rgba(58,123,253,.35)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(58,123,253,.6),0 14px 38px rgba(58,123,253,.45)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:rgba(255,255,255,.06);border:1px solid var(--line-strong);color:var(--t1);backdrop-filter:blur(10px)}
.btn-ghost:hover{background:rgba(58,123,253,.16);border-color:rgba(58,123,253,.48);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.glass{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);backdrop-filter:blur(14px);box-shadow:var(--shadow)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 11px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.02em}
.badge-accent{background:rgba(255,180,84,.14);color:var(--accent);border:1px solid rgba(255,180,84,.32)}
.badge-mint{background:rgba(23,195,178,.14);color:var(--brand-2);border:1px solid rgba(23,195,178,.32)}
.section{padding:52px 0}
@media (min-width:768px){.section{padding:72px 0}}
.section-title{font-size:clamp(21px,2.4vw,30px);line-height:1.28;font-weight:800;color:var(--t1);margin:0;letter-spacing:-.01em}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:24px}
.section-desc{margin:10px 0 0;color:var(--t2);font-size:15px}
.divider{height:1px;background:var(--line);border:0;margin:0}
/* ============ 文章页主体 ============ */
.article-main{
  padding:0 0 68px;
  background:
    radial-gradient(980px 420px at 82% -12%, rgba(58,123,253,.16), transparent 62%),
    radial-gradient(760px 380px at 4% 4%, rgba(23,195,178,.10), transparent 60%);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);padding:16px 0 0}
.crumb a{color:var(--t3);transition:color .2s ease}
.crumb a:hover{color:var(--brand-2)}
.crumb .sep{color:rgba(255,255,255,.22)}
.crumb-current{color:var(--t2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{padding:20px 0 0}
.article-head h1{
  margin:12px 0 0;
  font-size:clamp(25px,3.6vw,42px);
  line-height:1.22;
  letter-spacing:-.01em;
  font-weight:800;
  color:var(--t1);
  overflow-wrap:anywhere;
}
.article-sub{margin:14px 0 0;font-size:16px;color:var(--t2);max-width:72ch;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:18px;font-size:13.5px;color:var(--t3)}
.meta-row .meta-strong{color:var(--t2);font-variant-numeric:tabular-nums}
.meta-dot{width:4px;height:4px;border-radius:999px;background:rgba(255,255,255,.24)}
.cover-wrap{margin-top:26px;position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--bg-700);aspect-ratio:16/9;box-shadow:var(--shadow)}
.cover-wrap img{width:100%;height:100%;object-fit:cover}
.cover-wrap::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,12,22,0) 45%,rgba(7,12,22,.62) 100%);pointer-events:none}
.cover-tag{position:absolute;left:14px;bottom:14px;z-index:2}
/* 关键要点 */
.keypoints{margin-top:30px;padding:22px}
@media (min-width:768px){.keypoints{padding:26px 28px}}
.keypoints h2{margin:0 0 14px;font-size:17.5px;color:var(--t1);font-weight:800;display:flex;align-items:center;gap:9px}
.keypoints h2 svg{width:18px;height:18px;stroke:var(--brand-2);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.keypoints ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}
@media (min-width:768px){.keypoints ul{grid-template-columns:1fr 1fr;gap:12px 26px}}
.keypoints li{display:flex;gap:10px;font-size:14.5px;color:var(--t2);line-height:1.7}
.keypoints li svg{flex-shrink:0;width:17px;height:17px;margin-top:4px;stroke:var(--brand-2);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
/* 三栏布局 */
.article-layout{display:grid;grid-template-columns:1fr;gap:28px;margin-top:36px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:200px minmax(0,1fr) 280px;gap:34px;align-items:start}
}
.toc-desktop{display:none}
@media (min-width:1024px){.toc-desktop{display:block;position:sticky;top:92px}}
.toc-card{padding:16px 16px 18px}
.toc-title{font-size:12.5px;font-weight:800;letter-spacing:.08em;color:var(--t3);margin-bottom:10px}
.toc-list{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.toc-list a{display:block;padding:7px 10px;border-radius:9px;font-size:13.5px;color:var(--t2);border-left:2px solid transparent;transition:.2s}
.toc-list a:hover{background:rgba(58,123,253,.12);color:var(--t1);border-left-color:var(--brand)}
.toc-mobile{margin-bottom:2px}
.toc-mobile summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  padding:13px 16px;border-radius:14px;font-size:14px;font-weight:700;color:var(--t1);
  background:rgba(255,255,255,.06);border:1px solid var(--line-strong);transition:.2s
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary:hover{border-color:rgba(58,123,253,.45)}
.toc-mobile[open] summary{border-color:rgba(58,123,253,.5);background:rgba(58,123,253,.12)}
.toc-mobile .toc-list{padding:10px 8px 4px}
@media (min-width:1024px){.toc-mobile{display:none}}
/* 正文排版 */
.article-body{max-width:68ch;font-size:16.5px;line-height:1.85;color:var(--t2);overflow-wrap:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:1.2em 0}
.article-body h2{
  margin:2em 0 .7em;padding-left:12px;border-left:3px solid var(--brand);
  font-size:22px;line-height:1.4;font-weight:800;color:var(--t1);letter-spacing:-.01em
}
.article-body h3{margin:1.6em 0 .6em;font-size:18px;line-height:1.5;font-weight:700;color:var(--t1)}
.article-body h4{margin:1.4em 0 .5em;font-size:16.5px;font-weight:700;color:var(--t1)}
.article-body a{color:var(--brand);border-bottom:1px dashed rgba(58,123,253,.6);transition:.2s}
.article-body a:hover{color:#7FA9FF;border-bottom-style:solid}
.article-body strong{color:var(--t1);font-weight:700}
.article-body ul,.article-body ol{margin:1.1em 0;padding-left:1.35em;line-height:1.9}
.article-body li{margin:.35em 0}
.article-body li::marker{color:var(--brand-2)}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;border-radius:14px;border-left:3px solid var(--brand-2);
  background:rgba(255,255,255,.05);color:var(--t2);font-size:15.5px
}
.article-body blockquote p:first-child{margin-top:0}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;border:1px solid var(--line);margin:1.6em auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--t3);margin-top:10px}
.article-body hr{border:0;height:1px;background:var(--line);margin:2em 0}
.article-body code{background:rgba(255,255,255,.08);padding:2px 6px;border-radius:6px;font-size:.92em;color:var(--t1)}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.article-body th{background:rgba(255,255,255,.06);color:var(--t1);font-weight:700}
/* 空态 */
.empty-card{
  padding:40px 24px;text-align:center;border-radius:var(--radius);
  border:1px dashed var(--line-strong);background:rgba(255,255,255,.03)
}
.empty-card svg{width:34px;height:34px;stroke:var(--t3);fill:none;stroke-width:1.8;margin:0 auto 14px}
.empty-card strong{display:block;color:var(--t1);font-size:17px;margin-bottom:8px}
.empty-card p{margin:0 0 18px;color:var(--t3);font-size:14.5px}
/* 右栏 */
.aside-col{display:grid;gap:18px}
@media (min-width:1024px){.aside-col{position:sticky;top:92px}}
.aside-card{padding:20px}
.aside-title{font-size:14.5px;font-weight:800;color:var(--t1);margin:0 0 12px;display:flex;align-items:center;gap:8px}
.aside-title svg{width:16px;height:16px;stroke:var(--brand);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.aside-text{font-size:13.5px;color:var(--t3);line-height:1.7;margin:0 0 14px}
.dl-list{display:grid;gap:9px}
.dl-btn{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 14px;border-radius:12px;font-size:13.5px;font-weight:700;color:var(--t1);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);transition:.22s
}
.dl-btn:hover{background:rgba(58,123,253,.16);border-color:rgba(58,123,253,.5);transform:translateY(-1px)}
.dl-btn span.tagm{font-size:11px;font-weight:700;color:var(--brand-2);background:rgba(23,195,178,.12);border:1px solid rgba(23,195,178,.28);border-radius:999px;padding:1px 8px}
.aside-links{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.aside-links a{display:block;padding:8px 10px;border-radius:9px;font-size:13.5px;color:var(--t2);transition:.2s}
.aside-links a:hover{background:rgba(58,123,253,.12);color:var(--t1)}
/* 相关推荐 */
.rel-grid{display:grid;gap:20px}
@media (min-width:640px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.rel-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius);
  background:rgba(255,255,255,.055);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,background .25s ease
}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(58,123,253,.45);background:rgba(255,255,255,.07)}
.rel-fig{position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--bg-700)}
.rel-fig img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rel-card:hover .rel-fig img{transform:scale(1.04)}
.rel-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-body h3{margin:0;font-size:16px;line-height:1.45;color:var(--t1);font-weight:700}
.rel-body p{margin:0;font-size:13.5px;color:var(--t3);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-more{margin-top:auto;font-size:13px;font-weight:700;color:var(--brand)}
/* 返回条 */
.back-grid{display:grid;gap:16px}
@media (min-width:768px){.back-grid{grid-template-columns:1fr 1fr}}
.back-card{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid var(--line-strong);transition:.24s}
.back-card:hover{border-color:rgba(58,123,253,.5);background:rgba(58,123,253,.12);transform:translateY(-2px)}
.back-card small{display:block;font-size:12px;color:var(--t3);letter-spacing:.05em}
.back-card strong{display:block;font-size:15.5px;color:var(--t1);margin-top:3px}
.back-card svg{width:18px;height:18px;stroke:var(--brand);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
/* 声明 & 评论 */
.notice-band{
  display:flex;gap:14px;align-items:flex-start;padding:20px 22px;border-radius:16px;
  background:rgba(255,255,255,.045);border:1px solid var(--line)
}
.notice-band svg{width:20px;height:20px;flex-shrink:0;margin-top:3px;stroke:var(--accent);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.notice-band p{margin:0;font-size:13.5px;color:var(--t3);line-height:1.75}
.comment-shell{padding:24px}
@media (min-width:768px){.comment-shell{padding:28px}}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--t3);margin-bottom:7px}
.field input,.field textarea{
  width:100%;padding:11px 14px;border-radius:12px;font-size:14px;color:var(--t1);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease
}
.field input::placeholder,.field textarea::placeholder{color:var(--t3)}
.field input:focus,.field textarea:focus{border-color:rgba(58,123,253,.6);background:rgba(255,255,255,.07);box-shadow:0 0 0 3px rgba(58,123,253,.14)}
.field textarea{min-height:110px;resize:vertical;line-height:1.7}
.form-hint{font-size:12.5px;color:var(--t3);margin:10px 0 0}
.comment-list{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:12px}
.comment-list li{display:flex;gap:12px;padding:14px 16px;border-radius:14px;background:rgba(255,255,255,.035);border:1px solid var(--line)}
.avatar{width:40px;height:40px;border-radius:999px;flex-shrink:0;background:linear-gradient(140deg,rgba(58,123,253,.55),rgba(23,195,178,.45));display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:#fff}
.comment-body strong{display:block;font-size:13.5px;color:var(--t1)}
.comment-body span{display:block;font-size:12px;color:var(--t3);margin-top:2px}
.comment-body p{margin:6px 0 0;font-size:13.5px;color:var(--t2);line-height:1.7}
/* ============ 页脚 ============ */
.site-footer{background:var(--bg-900);border-top:1px solid var(--line);padding:56px 0 26px;margin-top:20px}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}}
.footer-brand p{margin:14px 0 0;font-size:13.5px;color:var(--t3);line-height:1.75;max-width:34ch}
.footer-title{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--t1);margin-bottom:14px}
.footer-links{display:grid;gap:9px}
.footer-links a{font-size:13.5px;color:var(--t3);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:var(--brand-2);transform:translateX(2px)}
.footer-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:var(--t3)
}
@media (max-width:600px){.footer-bottom{flex-direction:column}}

/* roulang page: category1 */
:root{
  --bg-900:#070C16;
  --bg-800:#0B1424;
  --bg-700:#101C30;
  --brand:#3A7BFD;
  --brand-2:#17C3B2;
  --accent:#FFB454;
  --t1:#EAF0FA;
  --t2:#A8B6CC;
  --t3:#6E7F98;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 12px 32px rgba(3,8,20,.45);
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-900);
  color:var(--t2);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

/* ============ 顶部白色导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid #E6EAF2;
  box-shadow:0 1px 2px rgba(15,23,42,.06);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--nav-h)}
.logo{display:flex;align-items:center;gap:10px;color:#0F172A;font-weight:800;font-size:16px;letter-spacing:.01em;flex-shrink:0}
.logo-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(140deg,#3A7BFD,#17C3B2);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(58,123,253,.32);flex-shrink:0}
.logo-mark svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.logo small{display:block;font-size:11px;font-weight:500;color:#6B7A93;letter-spacing:.06em}
.main-nav{display:none;align-items:center;gap:2px}
.nav-link{position:relative;display:inline-block;padding:8px 12px;border-radius:9px;color:#334155;font-size:14.5px;font-weight:500;transition:background .2s ease,color .2s ease}
.nav-link:hover{background:#F4F6FA;color:#0F172A}
.nav-link.is-active{color:#0F172A;font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:-3px;height:2px;border-radius:2px;background:var(--brand)}
.nav-right{display:none;align-items:center;gap:10px;flex-shrink:0}
.search-box{display:flex;align-items:center;height:38px;padding:0 4px 0 12px;background:#F4F6FA;border:1px solid #E6EAF2;border-radius:999px;transition:border-color .2s ease,box-shadow .2s ease}
.search-box:focus-within{border-color:#B9CBF3;box-shadow:0 0 0 3px rgba(58,123,253,.12)}
.search-box input{border:0;background:transparent;outline:none;font-size:13.5px;color:#0F172A;width:150px}
.search-box input::placeholder{color:#8A99B0}
.search-box button{width:30px;height:30px;border:0;border-radius:999px;background:var(--brand);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:filter .2s ease}
.search-box button:hover{filter:brightness(1.1)}
.search-box button svg{width:15px;height:15px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.btn-ghost-nav{border:1px solid #DCE3EF;background:#fff;color:#25324A;font-size:14px;font-weight:600;padding:8px 16px;border-radius:999px;cursor:pointer;transition:.2s}
.btn-ghost-nav:hover{border-color:#B9CBF3;color:#1B4BC4;background:#F7F9FE}
.btn-nav-cta{background:var(--brand);color:#fff;font-size:14px;font-weight:700;padding:9px 18px;border-radius:999px;border:0;cursor:pointer;box-shadow:0 0 0 1px rgba(255,180,84,.55),0 6px 16px rgba(58,123,253,.26);transition:transform .2s ease,filter .2s ease}
.btn-nav-cta:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-nav-cta:active{transform:scale(.98)}
.menu-toggle{display:flex;width:40px;height:40px;border:1px solid #E6EAF2;background:#F7F9FD;border-radius:12px;align-items:center;justify-content:center;cursor:pointer}
.menu-toggle svg{width:20px;height:20px;stroke:#25324A;fill:none;stroke-width:2;stroke-linecap:round}
.mobile-panel{display:none;padding:0 20px 18px;background:#fff}
.mobile-panel.open{display:block}
.mobile-inner{background:#fff;border:1px solid #E6EAF2;border-radius:16px;box-shadow:0 16px 40px rgba(15,23,42,.12);padding:14px}
.mobile-inner .nav-link{display:block;padding:11px 12px;border-radius:10px;font-size:15px}
.mobile-inner .nav-link.is-active::after{display:none}
.mobile-inner .search-box{width:100%;margin:6px 0 10px}
.mobile-inner .search-box input{width:100%}
.mobile-inner .btn-nav-cta{display:block;width:100%;text-align:center;margin-top:8px}
@media(min-width:1024px){
  .main-nav{display:flex}
  .nav-right{display:flex}
  .menu-toggle{display:none}
  .mobile-panel{display:none !important}
}
.header-fade{height:40px;background:linear-gradient(180deg,#EDF1F8 0%,#141C2C 44%,var(--bg-900) 100%)}

/* ============ 通用按钮 / 玻璃卡 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 24px;font-size:15px;font-weight:600;border:0;cursor:pointer;transition:transform .2s ease,box-shadow .25s ease,filter .2s ease,background .2s ease,border-color .2s ease}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 0 0 1px rgba(58,123,253,.5),0 10px 30px rgba(58,123,253,.35)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(58,123,253,.6),0 14px 38px rgba(58,123,253,.45)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:rgba(255,255,255,.06);border:1px solid var(--line-strong);color:var(--t1);backdrop-filter:blur(10px)}
.btn-ghost:hover{background:rgba(58,123,253,.16);border-color:rgba(58,123,253,.48);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.glass{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);backdrop-filter:blur(14px);box-shadow:var(--shadow)}

/* ============ 栏目头部 ============ */
.cat-hero{
  position:relative;
  padding:20px 0 44px;
  background:
    radial-gradient(900px 380px at 82% -20%, rgba(58,123,253,.20), transparent 62%),
    radial-gradient(700px 340px at 4% 10%, rgba(23,195,178,.12), transparent 60%);
  overflow:hidden;
}
.cat-hero .hero-img{
  position:absolute;inset:0;
  background-image:url("/assets/images/19476ced78dd449f.webp");
  background-size:cover;background-position:center;
  opacity:.14;filter:saturate(.8);
  pointer-events:none;
}
.cat-hero > .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:18px}
.breadcrumb a{color:var(--t2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:var(--t3)}
.cat-hero-grid{display:grid;grid-template-columns:1fr;gap:26px;align-items:start}
@media(min-width:1024px){.cat-hero-grid{grid-template-columns:1.6fr .9fr;gap:40px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:5px 13px;border-radius:999px;background:rgba(255,180,84,.12);border:1px solid rgba(255,180,84,.34);color:var(--accent);font-size:12.5px;font-weight:700;letter-spacing:.04em}
.cat-hero h1{font-size:clamp(26px,3.4vw,40px);line-height:1.22;letter-spacing:-.01em;margin-top:16px;font-weight:800}
.cat-hero .lead{margin-top:16px;font-size:15.5px;color:var(--t2);max-width:60ch}
.cat-hero .lead strong{color:var(--t1);font-weight:600}
.stat-card{padding:20px}
.stat-card h2{font-size:14px;color:var(--t1);letter-spacing:.02em;margin-bottom:14px;font-weight:700}
.stat-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.10)}
.stat-row:last-child{border-bottom:0;padding-bottom:0}
.stat-row .k{font-size:13.5px;color:var(--t3)}
.stat-row .v{font-size:13.5px;color:var(--t1);font-weight:700;font-variant-numeric:tabular-nums}

/* ============ 板块通用 ============ */
.section{padding:52px 0}
@media(min-width:768px){.section{padding:80px 0}}
.section--alt{background:var(--bg-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:32px}
@media(min-width:900px){.section-head{grid-template-columns:1fr auto;align-items:end}}
.section-head h2{font-size:clamp(22px,2.4vw,32px);line-height:1.25;letter-spacing:-.01em}
.section-head h2 em{font-style:normal;color:var(--brand-2)}
.section-head p{font-size:14.5px;color:var(--t3);margin-top:8px;max-width:70ch}

/* ============ 筛选条 ============ */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:14px;margin-bottom:26px;border-radius:var(--radius);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);backdrop-filter:blur(12px)}
.pill{padding:7px 16px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--t2);font-size:13.5px;cursor:pointer;transition:.2s;white-space:nowrap}
.pill:hover{color:var(--t1);border-color:rgba(58,123,253,.45)}
.pill.is-on{background:rgba(58,123,253,.18);border-color:rgba(58,123,253,.55);color:#CFE0FF;font-weight:600}
.filter-bar .spacer{flex:1 1 auto}
.sort-select{height:36px;padding:0 12px;border-radius:999px;background:#0F1B2E;color:var(--t1);border:1px solid var(--line);font-size:13.5px;outline:none;cursor:pointer}
.sort-select:focus{border-color:rgba(58,123,253,.6)}

/* ============ 资讯卡列表（CMS） ============ */
.news-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{display:flex;flex-direction:column;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.11);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);backdrop-filter:blur(14px);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.news-card:hover{transform:translateY(-4px);border-color:rgba(58,123,253,.45);box-shadow:0 18px 40px rgba(3,8,20,.55)}
.news-thumb{aspect-ratio:3/2;width:100%;object-fit:cover}
.news-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge{display:inline-flex;align-items:center;align-self:flex-start;padding:3px 11px;border-radius:999px;background:rgba(255,180,84,.16);border:1px solid rgba(255,180,84,.38);color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.03em}
.news-body h3{font-size:16.5px;line-height:1.5;color:var(--t1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body .excerpt{font-size:14px;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--t3);font-variant-numeric:tabular-nums;margin-top:auto}
.empty-card{border:1px dashed rgba(255,255,255,.22);border-radius:var(--radius);padding:36px 22px;text-align:center;color:var(--t3);font-size:14px;background:rgba(255,255,255,.03)}
.empty-card svg{width:34px;height:34px;stroke:var(--t3);fill:none;stroke-width:1.6;margin:0 auto 12px}

/* ============ 焦点话题 ============ */
.focus-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:1024px){.focus-grid{grid-template-columns:1.35fr 1fr;gap:22px}}
.focus-main{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.12);box-shadow:var(--shadow);min-height:280px;display:flex;align-items:flex-end}
.focus-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.focus-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,12,22,.15) 0%,rgba(7,12,22,.88) 78%)}
.focus-main .focus-text{position:relative;z-index:1;padding:24px}
.focus-main h3{font-size:clamp(18px,2vw,23px);line-height:1.4;margin-top:12px}
.focus-main p{font-size:14px;color:var(--t2);margin-top:10px;max-width:52ch}
.focus-side{display:grid;gap:16px;grid-template-rows:1fr 1fr}
.focus-item{padding:18px;border-radius:var(--radius);background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.11);display:flex;gap:14px;backdrop-filter:blur(12px);transition:transform .25s ease,border-color .25s ease}
.focus-item:hover{transform:translateY(-3px);border-color:rgba(23,195,178,.45)}
.focus-item .dot{width:8px;height:8px;border-radius:50%;background:var(--brand-2);margin-top:9px;flex-shrink:0;box-shadow:0 0 0 4px rgba(23,195,178,.16)}
.focus-item h4{font-size:15.5px;color:var(--t1);line-height:1.5}
.focus-item p{font-size:13.5px;color:var(--t3);margin-top:6px}

/* ============ 场景卡 & 流程 ============ */
.scene-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:640px){.scene-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.scene-grid{grid-template-columns:repeat(4,1fr)}}
.scene-card{padding:22px;border-radius:var(--radius);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);transition:transform .25s ease,border-color .25s ease,background .25s ease}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(58,123,253,.45);background:rgba(58,123,253,.08)}
.scene-card .ico{width:40px;height:40px;border-radius:12px;background:rgba(58,123,253,.16);border:1px solid rgba(58,123,253,.32);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.scene-card .ico svg{width:19px;height:19px;stroke:var(--brand);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.scene-card h3{font-size:16px;margin-bottom:8px}
.scene-card p{font-size:13.8px;color:var(--t3);line-height:1.7}
.steps{display:grid;grid-template-columns:1fr;gap:16px;margin-top:34px}
@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;padding:20px;border-radius:var(--radius-sm);border:1px solid var(--line);background:rgba(255,255,255,.04)}
.step .num{font-size:26px;font-weight:800;color:rgba(58,123,253,.55);font-variant-numeric:tabular-nums;line-height:1}
.step h4{font-size:15px;margin:10px 0 6px}
.step p{font-size:13.5px;color:var(--t3)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:26px}
@media(min-width:1024px){.faq-wrap{grid-template-columns:300px 1fr;gap:40px;align-items:start}}
.faq-aside h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3}
.faq-aside p{font-size:14px;color:var(--t3);margin-top:12px}
.faq-list{display:grid;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:rgba(255,255,255,.045);overflow:hidden;transition:border-color .2s ease,background .2s ease}
.faq-item[open]{border-color:rgba(58,123,253,.5);background:rgba(58,123,253,.07)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 18px;cursor:pointer;color:var(--t1);font-size:15px;font-weight:600;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary svg{width:16px;height:16px;stroke:var(--brand);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;transition:transform .25s ease}
.faq-item[open] summary svg{transform:rotate(180deg)}
.faq-item .answer{padding:0 18px 18px;font-size:14px;color:var(--t2);line-height:1.8}

/* ============ 合规条带 ============ */
.notice{display:flex;align-items:flex-start;gap:14px;padding:20px 22px;border-radius:var(--radius);background:rgba(23,195,178,.08);border:1px solid rgba(23,195,178,.30)}
.notice svg{width:22px;height:22px;stroke:var(--brand-2);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;margin-top:2px}
.notice p{font-size:14px;color:var(--t2);line-height:1.8}
.notice strong{color:var(--t1)}

/* ============ 频道入口 ============ */
.channel-chips{display:flex;flex-wrap:wrap;gap:12px}
.channel-chip{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(255,255,255,.05);color:var(--t1);font-size:14px;font-weight:600;transition:.22s}
.channel-chip:hover{border-color:rgba(58,123,253,.55);background:rgba(58,123,253,.15);transform:translateY(-2px)}
.channel-chip.is-current{background:rgba(58,123,253,.20);border-color:rgba(58,123,253,.6);box-shadow:0 0 0 1px rgba(58,123,253,.3)}
.channel-chip .tag{font-size:11px;padding:1px 8px;border-radius:999px;background:rgba(255,180,84,.20);color:var(--accent);font-weight:700}

/* ============ 下载区 ============ */
.dl-grid{display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
@media(min-width:1024px){.dl-grid{grid-template-columns:1fr .8fr;gap:40px}}
.dl-cards{display:grid;grid-template-columns:1fr;gap:14px;margin-top:24px}
@media(min-width:640px){.dl-cards{grid-template-columns:repeat(3,1fr)}}
.dl-card{padding:18px;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.055);text-align:center;transition:transform .25s ease,border-color .25s ease}
.dl-card:hover{transform:translateY(-4px);border-color:rgba(58,123,253,.5)}
.dl-card svg{width:26px;height:26px;stroke:var(--brand-2);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;margin:0 auto 10px}
.dl-card h3{font-size:15px;margin-bottom:6px}
.dl-card p{font-size:12.5px;color:var(--t3);margin-bottom:14px}
.dl-btn{display:block;width:100%;text-align:center;padding:10px 12px;border-radius:999px;background:var(--brand);color:#fff;font-size:14px;font-weight:700;box-shadow:0 0 0 1px rgba(58,123,253,.5),0 8px 22px rgba(58,123,253,.30);transition:filter .2s ease,transform .2s ease}
.dl-btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.dl-btn:active{transform:scale(.98)}
.dl-visual{border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.12);box-shadow:var(--shadow)}
.dl-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ============ 表单 ============ */
.form-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:1024px){.form-grid{grid-template-columns:1.15fr .85fr;gap:36px;align-items:start}}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--t2);margin-bottom:7px;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  color:var(--t1);outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:var(--t3)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(58,123,253,.6);box-shadow:0 0 0 3px rgba(58,123,253,.16)}
.field textarea{resize:vertical;min-height:110px}
.field select{appearance:none;background-image:none;cursor:pointer}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--t3);line-height:1.7;margin:6px 0 18px}
.check-row input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand);flex-shrink:0}
.form-tip{font-size:12.5px;color:var(--t3);margin-top:12px}
.form-done{display:none;margin-top:14px;padding:12px 16px;border-radius:var(--radius-sm);background:rgba(23,195,178,.12);border:1px solid rgba(23,195,178,.4);color:#9BE9DF;font-size:13.5px}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-900);border-top:1px solid var(--line);padding:52px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}}
.footer-brand p{font-size:13.5px;color:var(--t3);line-height:1.85;margin-top:16px;max-width:38ch}
.footer-title{font-size:14px;font-weight:700;color:var(--t1);margin-bottom:14px;letter-spacing:.02em}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:13.5px;color:var(--t3);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;margin-top:40px;padding:20px 0;border-top:1px solid var(--line);font-size:12.5px;color:var(--t3)}
@media(max-width:520px){
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .dl-card{padding:16px}
  .cat-hero h1{font-size:24px}
}