/* roulang page: index */
/* ============ 设计令牌 ============ */
:root{
  --cyan:#16C2B0;
  --cyan-hi:#2AD8C6;
  --cyan-lo:#0E9C8E;
  --amber:#FF8A3D;
  --bg:#06181F;
  --bg-2:#08222B;
  --panel:#0C2630;
  --text:#E9F5F6;
  --text-2:#A3BDC2;
  --text-3:#6E8C93;
  --line:rgba(120,230,220,.16);
  --line-hi:rgba(22,194,176,.45);
  --glass:rgba(12,38,48,.55);
  --sh-1:0 8px 24px rgba(0,0,0,.32);
  --sh-2:0 16px 40px rgba(0,0,0,.42);
  --sh-cta:0 10px 28px rgba(22,194,176,.32);
  --r-card:16px;
  --r-img:12px;
  --r-badge:6px;
  --r-input:10px;
  --max:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--cyan);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--cyan-hi);text-decoration:underline;text-underline-offset:3px}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
::selection{background:rgba(22,194,176,.35);color:#fff}

/* ============ 容器与栅格 ============ */
.rl-container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.rl-narrow{max-width:760px;margin:0 auto}
.sec{position:relative;padding:96px 0}
.sec-alt{background:var(--bg-2)}
.sec-alt::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(22,194,176,.35),transparent)}

/* ============ 通用标题 ============ */
.sec-head{margin-bottom:44px}
.sec-head.center{text-align:center;max-width:760px;margin-left:auto;margin-right:auto}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--cyan);margin-bottom:14px}
.eyebrow::before{content:"";width:20px;height:1px;background:var(--cyan);display:inline-block}
h2.sec-title{font-size:clamp(24px,2.6vw,30px);line-height:1.35;font-weight:700;letter-spacing:-.01em;margin-bottom:14px}
.sec-sub{color:var(--text-2);font-size:16px;max-width:680px}
.sec-head.center .sec-sub{margin:0 auto}
.sec-head.row-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:999px;
  border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
  white-space:nowrap;
}
.btn:hover{text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--cyan-hi),var(--cyan));color:#04211F;box-shadow:var(--sh-cta)}
.btn-primary:hover{color:#04211F;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 14px 34px rgba(22,194,176,.42)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{background:rgba(22,194,176,.12);border-color:var(--cyan);color:var(--cyan-hi);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-line{background:transparent;border-color:rgba(22,194,176,.55);color:var(--cyan);border-radius:10px}
.btn-line:hover{background:rgba(22,194,176,.12);color:var(--cyan-hi)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--cyan)}
.link-more:hover{text-decoration:underline;text-underline-offset:3px}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:var(--r-badge);font-size:12.5px;line-height:1;font-weight:500;white-space:nowrap;
}
.badge-outline{border:1px solid var(--line);color:var(--text-2);background:transparent}
.badge-cyan{background:rgba(22,194,176,.16);color:var(--cyan-hi);border:1px solid rgba(22,194,176,.35)}
.badge-amber{background:var(--amber);color:#25160A;font-weight:700}

/* ============ 卡片 ============ */
.card{
  position:relative;
  background:var(--glass);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,.14),rgba(255,255,255,0));
  border-radius:var(--r-card) var(--r-card) 0 0;pointer-events:none;
}
.card:hover{border-color:var(--line-hi);transform:translateY(-2px);box-shadow:var(--sh-2)}
@supports not ((-webkit-backdrop-filter:blur(2px)) or (backdrop-filter:blur(2px))){
  .card,.hero-media,.drawer,.cta-banner{background:var(--panel)}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,24,31,.82);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:var(--max);margin:0 auto;padding:0 24px;height:78px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.nav-side{display:flex;align-items:center;gap:26px;flex:1 1 0;min-width:0}
.nav-side.left{justify-content:flex-end}
.nav-side.right{justify-content:flex-start}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:78px;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s var(--ease);
}
.nav-link:hover{color:var(--cyan-hi);text-decoration:none}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:20px;transform:translateX(-50%);
  width:0;height:2px;background:var(--cyan);border-radius:2px;transition:width .2s var(--ease);
}
.nav-link:hover::after{width:60%}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{width:60%}
.brand{
  display:flex;align-items:center;gap:10px;flex:0 0 auto;
  font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--text);
}
.brand:hover{color:var(--text);text-decoration:none}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.nav-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--text);flex:0 0 auto;
}
.nav-toggle i{font-size:17px}

/* 移动抽屉 */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(3,12,16,.7);
  opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s;z-index:90;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86%,380px);z-index:95;
  background:rgba(8,30,38,.96);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .26s var(--ease);
  display:flex;flex-direction:column;padding:22px 22px 30px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line);color:var(--text);display:flex;align-items:center;justify-content:center}
.drawer-nav a{
  display:flex;align-items:center;min-height:56px;color:var(--text-2);
  font-size:16px;font-weight:500;border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--cyan-hi);text-decoration:none}
.drawer-nav a.is-active{color:var(--cyan)}
.drawer .btn{margin-top:24px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;padding:76px 0 92px;
  background:
    radial-gradient(880px 460px at 80% 4%, rgba(22,194,176,.18), transparent 64%),
    radial-gradient(560px 320px at 6% 92%, rgba(255,138,61,.07), transparent 66%),
    linear-gradient(180deg,#06181F 0%, #08222B 100%);
}
.hero-grid{align-items:center}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:rgba(22,194,176,.08);color:var(--cyan-hi);font-size:13px;margin-bottom:22px}
.hero h1{
  font-size:clamp(28px,4.4vw,50px);line-height:1.25;font-weight:700;letter-spacing:-.01em;
  margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--cyan);}
.hero-lead{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.trust-row{display:flex;flex-wrap:wrap;gap:12px 26px;padding-top:24px;border-top:1px solid var(--line)}
.trust-item{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-2)}
.trust-item i{color:var(--cyan);font-size:14px}
.hero-media{
  position:relative;overflow:hidden;border-radius:var(--r-img);padding:0;
  background:linear-gradient(135deg,#0C2630,#08222B);
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-media-mask{
  position:absolute;inset:auto 0 0 0;height:58%;
  background:linear-gradient(180deg,rgba(6,24,31,0) 0%, rgba(6,24,31,.82) 62%, rgba(6,24,31,.95) 100%);
  pointer-events:none;
}
.hero-media-foot{
  position:absolute;left:18px;right:18px;bottom:16px;
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-2);
}
.hero-media.is-empty::after{
  content:"kaiyun";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:34px;font-weight:700;color:rgba(233,245,246,.14);letter-spacing:.06em;
}

/* ============ 数据条 ============ */
.stats-strip{padding:0 0 96px}
.stats-box{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.stat-cell{background:rgba(12,38,48,.55);padding:24px 22px}
.stat-num{font-size:26px;font-weight:700;color:var(--cyan);line-height:1.3;letter-spacing:-.01em}
.stat-label{font-size:13.5px;color:var(--text-3);margin-top:4px}

/* ============ 权益对比表 ============ */
.compare-wrap{
  position:relative;overflow-x:auto;-webkit-overflow-scrolling:touch;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:rgba(12,38,48,.5);
}
.compare-wrap::after{
  content:"";position:absolute;top:0;right:0;bottom:0;width:42px;pointer-events:none;
  background:linear-gradient(90deg,rgba(6,24,31,0),rgba(6,24,31,.72));
  border-radius:0 var(--r-card) var(--r-card) 0;
}
.compare-table{width:100%;min-width:780px;border-collapse:collapse;font-size:14.5px}
.compare-table th,.compare-table td{
  padding:15px 18px;border-bottom:1px solid var(--line);text-align:center;color:var(--text-2);
}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table thead th{
  background:#0B232C;color:var(--text);font-weight:600;font-size:14px;letter-spacing:.01em;
}
.compare-table th:first-child,.compare-table td:first-child{
  text-align:left;color:var(--text);font-weight:500;
  position:sticky;left:0;background:#0B232C;z-index:2;
}
.compare-table thead th:first-child{z-index:3}
.compare-table tbody tr:hover td:not(:first-child){background:rgba(22,194,176,.05)}
.compare-table .col-recommend{background:rgba(22,194,176,.07);color:var(--text)}
.compare-table thead th.col-recommend{
  color:var(--cyan-hi);
  box-shadow:inset 1px 0 0 var(--line-hi), inset -1px 0 0 var(--line-hi), inset 0 1px 0 var(--line-hi);
}
.compare-table tbody tr:last-child td.col-recommend{
  box-shadow:inset 1px 0 0 var(--line-hi), inset -1px 0 0 var(--line-hi), inset 0 -1px 0 var(--line-hi);
}
.rec-tag{
  display:inline-block;margin-right:8px;padding:0 6px;height:20px;line-height:20px;
  border-radius:5px;background:var(--amber);color:#25160A;font-size:11.5px;font-weight:700;vertical-align:1px;
}
.table-note{margin-top:14px;font-size:13.5px;color:var(--text-3);text-align:center}
.mark{display:inline-block;width:18px;height:18px;border-radius:50%;position:relative;vertical-align:-4px}
.mark.yes{border:1.5px solid rgba(22,194,176,.65)}
.mark.yes::after{
  content:"";position:absolute;left:6px;top:4px;width:4px;height:8px;
  border-right:2px solid var(--cyan);border-bottom:2px solid var(--cyan);transform:rotate(43deg);
}
.mark.no{border:1.5px solid rgba(110,140,147,.5)}
.mark.no::before,.mark.no::after{content:"";position:absolute;left:7.5px;top:4px;width:2px;height:9px;background:var(--text-3);border-radius:1px}
.mark.no::before{transform:rotate(45deg)}
.mark.no::after{transform:rotate(-45deg)}
.mark.part{border:1.5px solid rgba(255,138,61,.6)}
.mark.part::after{content:"";position:absolute;left:4.5px;top:7.5px;width:7px;height:2px;background:var(--amber);border-radius:1px}

/* ============ 等级亮点 ============ */
.level-grid{align-items:stretch}
.level-stack{display:grid;gap:20px;height:100%;align-content:start}
.level-card{padding:28px;display:flex;flex-direction:column;height:100%}
.level-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:8px}
.level-name{font-size:20px;font-weight:700;letter-spacing:-.01em}
.level-anchor{font-size:13.5px;color:var(--text-3);margin-bottom:18px}
.level-anchor strong{color:var(--amber);font-weight:600;font-size:14.5px}
.level-feats{display:grid;gap:11px;margin-bottom:24px}
.level-feats li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.7}
.level-feats i{color:var(--cyan);font-size:13px;margin-top:5px;flex:0 0 auto}
.level-card .btn{margin-top:auto}
.level-card--main{border-color:rgba(22,194,176,.3)}
.level-card--main .level-name{font-size:23px}

/* ============ 专属内容预览 ============ */
.preview-grid{align-items:stretch}
.preview-stack{display:grid;gap:20px;height:100%}
.preview-card{display:block;overflow:hidden;padding:16px;color:inherit}
.preview-card:hover{color:inherit;text-decoration:none}
.preview-media{
  position:relative;overflow:hidden;border-radius:var(--r-img);
  background:linear-gradient(135deg,#0C2630,#08222B);
}
.preview-card--big .preview-media{aspect-ratio:16/10}
.preview-card--sm .preview-media{aspect-ratio:4/3}
.preview-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.preview-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,24,31,.05),rgba(6,24,31,.55));transition:background .3s var(--ease)}
.preview-card:hover .preview-media img{transform:scale(1.03)}
.preview-card:hover .preview-media::after{background:linear-gradient(180deg,rgba(6,24,31,.15),rgba(6,24,31,.68))}
.preview-badge{position:absolute;left:12px;top:12px;z-index:2}
.preview-body{padding:16px 4px 4px}
.preview-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--text);margin-bottom:8px}
.preview-card--big .preview-title{font-size:20px}
.preview-desc{font-size:14px;color:var(--text-2);line-height:1.75;margin-bottom:12px}
.preview-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-3)}
.preview-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}

/* ============ 最新信息（CMS 列表） ============ */
.news-panel{border:1px solid var(--line);border-radius:var(--r-card);background:rgba(12,38,48,.42);overflow:hidden}
.news-row{
  display:flex;align-items:center;gap:20px;padding:18px 24px;
  border-bottom:1px solid var(--line);color:inherit;
  transition:background-color .2s var(--ease);
}
.news-row:last-child{border-bottom:0}
.news-row:hover{background:rgba(22,194,176,.06);text-decoration:none;color:inherit}
.news-thumb{
  flex:0 0 120px;width:120px;height:80px;border-radius:10px;overflow:hidden;
  background:linear-gradient(135deg,#0C2630,#0A2A33);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;font-weight:700;color:rgba(22,194,176,.6);
}
.news-body{flex:1 1 auto;min-width:0}
.news-title{
  display:block;font-size:16px;font-weight:600;color:var(--text);line-height:1.5;
  margin-bottom:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.news-row:hover .news-title{color:var(--cyan-hi)}
.news-desc{
  display:block;font-size:13.5px;color:var(--text-3);line-height:1.6;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.news-side{
  flex:0 0 auto;display:flex;flex-direction:column;align-items:flex-end;gap:8px;
  font-size:13px;color:var(--text-3);
}
.empty-state{
  padding:56px 24px;text-align:center;color:var(--text-3);font-size:14.5px;
}
.empty-icon{
  width:56px;height:56px;border-radius:14px;margin:0 auto 16px;
  border:1px solid var(--line);background:linear-gradient(135deg,#0C2630,#08222B);
  display:flex;align-items:center;justify-content:center;color:var(--cyan);font-size:20px;
}
.empty-state .btn{margin-top:18px}

/* ============ FAQ ============ */
.faq-list{max-width:760px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--cyan-hi)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--cyan);border-radius:1px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.is-open .faq-a{max-height:460px}
.faq-a-inner{padding:0 44px 24px 4px;color:var(--text-2);font-size:15px;line-height:1.8}

/* ============ CTA 横幅 ============ */
.cta-banner{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line);
  background:rgba(12,38,48,.6);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-banner::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,194,176,.08),transparent 70%);pointer-events:none;
}
.cta-banner h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.4;margin-bottom:10px;letter-spacing:-.01em}
.cta-banner p{color:var(--text-2);font-size:15px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:#04121A;padding:68px 0 0;margin-top:0}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(22,194,176,.8),transparent)}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;margin-bottom:14px}
.foot-desc{font-size:14px;color:var(--text-3);line-height:1.85;max-width:280px}
.foot-domain{display:inline-block;margin-top:14px;font-size:13px;color:var(--text-3);letter-spacing:.02em}
.foot-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.foot-links{display:grid;gap:11px}
.foot-links a{font-size:14px;color:var(--text-2)}
.foot-links a:hover{color:var(--cyan-hi)}
.foot-form{display:grid;gap:12px;margin-top:4px}
.field-label{font-size:13px;color:var(--text-3)}
.field-input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-input);
  background:rgba(6,24,31,.7);border:1px solid var(--line);color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field-input::placeholder{color:var(--text-3)}
.field-input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(22,194,176,.16)}
.form-msg{font-size:13px;color:var(--cyan-hi);min-height:18px}
.form-msg.is-error{color:var(--amber)}
.foot-bottom{
  margin-top:52px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ============ 动效降级 ============ */
@media (prefers-reduced-motion: reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .card:hover,.btn:hover{transform:none!important}
  .preview-card:hover .preview-media img{transform:none!important}
}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .rl-container{padding:0 28px}
}
@media (max-width:1023px){
  .nav-side,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{height:68px}
  .sec{padding:72px 0}
  .stats-strip{padding-bottom:72px}
  .level-stack{gap:16px}
  .cta-banner{padding:36px 28px}
  .news-row{gap:16px;padding:16px 18px}
}
@media (max-width:767px){
  .stats-box{grid-template-columns:repeat(2,1fr)}
  .hero{padding:52px 0 64px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .trust-row{gap:10px 18px}
  .news-row{flex-wrap:wrap}
  .news-thumb{flex:0 0 88px;width:88px;height:64px}
  .news-side{flex-direction:row;align-items:center;gap:12px;width:100%;justify-content:flex-start;padding-left:104px;margin-top:-8px}
  .faq-a-inner{padding-right:8px}
}
@media (max-width:519px){
  .rl-container{padding:0 18px}
  .sec{padding:56px 0}
  .stats-strip{padding-bottom:56px}
  .stats-box{grid-template-columns:1fr}
  .news-side{padding-left:0}
  .cta-banner{padding:28px 20px}
  .cta-actions .btn{width:100%}
  .level-card{padding:22px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: article */
/* ============ 设计令牌 ============ */
:root{
  --bg:#06181F;
  --bg-2:#08222B;
  --panel:#0C2630;
  --primary:#16C2B0;
  --primary-hover:#2AD8C6;
  --primary-active:#0E9C8E;
  --accent:#FF8A3D;
  --text:#E9F5F6;
  --muted:#A3BDC2;
  --faint:#6E8C93;
  --line:rgba(120,230,220,.16);
  --line-strong:rgba(22,194,176,.45);
  --glass:rgba(12,38,48,.55);
  --r-card:16px;
  --r-img:12px;
  --r-btn:999px;
  --r-btn-2:10px;
  --r-badge:6px;
  --sh-card:0 8px 24px rgba(0,0,0,.32);
  --sh-lift:0 16px 40px rgba(0,0,0,.42);
  --sh-cta:0 10px 28px rgba(22,194,176,.32);
  --sec-lg:96px;
  --sec-md:72px;
  --sec-sm:56px;
  --ease:200ms ease-out;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(22,194,176,.12), transparent 62%),
    radial-gradient(760px 460px at 96% 4%, rgba(255,138,61,.07), transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
a.link-inline{color:var(--primary);border-bottom:1px solid rgba(22,194,176,.35);}
a.link-inline:hover{text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(22,194,176,.32);color:#fff;}

/* ============ 容器与通用版式 ============ */
.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.read-container{width:100%;max-width:760px;}
.sec{padding:var(--sec-lg) 0;}
.sec-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.sec-title{font-size:28px;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
.sec-sub{color:var(--muted);font-size:15px;margin-top:8px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--primary);letter-spacing:.08em;margin-bottom:14px;}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,transparent,var(--primary));}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;cursor:pointer;
}
.btn-primary{
  background:linear-gradient(120deg,var(--primary),var(--primary-hover));
  color:#04211E;box-shadow:var(--sh-cta);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(22,194,176,.42);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 18px rgba(22,194,176,.28);}
.btn-outline{
  background:transparent;border:1px solid rgba(22,194,176,.55);color:var(--text);border-radius:var(--r-btn-2);
  padding:12px 24px;
}
.btn-outline:hover{background:rgba(22,194,176,.12);border-color:var(--primary);}
.btn-ghost{
  color:var(--primary);padding:8px 4px;border-radius:var(--r-btn-2);font-weight:600;font-size:15px;
}
.btn-ghost:hover{text-decoration:underline;text-underline-offset:3px;color:var(--primary-hover);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{display:flex;width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:var(--r-badge);font-size:12.5px;line-height:1;}
.badge-line{border:1px solid var(--line-strong);color:var(--primary);}
.badge-soft{background:rgba(22,194,176,.14);color:var(--primary-hover);border:1px solid rgba(22,194,176,.22);}
.badge-accent{background:var(--accent);color:#2A1403;font-weight:700;}
.chip-row{display:flex;gap:10px;overflow-x:auto;padding:4px 0 10px;scrollbar-width:thin;}
.chip{
  flex:0 0 auto;padding:8px 16px;border-radius:var(--r-btn);border:1px solid var(--line);
  color:var(--muted);font-size:14px;transition:all var(--ease);white-space:nowrap;
}
.chip:hover{color:var(--text);border-color:var(--line-strong);}
.chip.is-active{background:rgba(22,194,176,.14);border-color:var(--primary);color:var(--primary-hover);}

/* ============ 卡片 ============ */
.card{
  position:relative;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  padding:24px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;border-radius:var(--r-card) var(--r-card) 0 0;
  background:linear-gradient(90deg,rgba(255,255,255,.14),rgba(255,255,255,0));
}
.card:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:var(--sh-lift);}
@supports not ((backdrop-filter: blur(2px)) or (-webkit-backdrop-filter: blur(2px))){
  .card{background:var(--panel);}
}
.thumb{
  position:relative;overflow:hidden;border-radius:var(--r-img);
  background:linear-gradient(160deg,var(--panel),var(--bg-2));
  aspect-ratio:16/10;
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease),filter var(--ease);}
.thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,24,31,0) 40%,rgba(6,24,31,.55));}
.card-link:hover .thumb img{transform:scale(1.03);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,24,31,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;
  width:100%;max-width:1200px;margin:0 auto;padding:0 24px;height:76px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-side.right{justify-content:flex-end;}
.nav-link{position:relative;color:var(--muted);font-size:15px;font-weight:500;padding:8px 2px;transition:color var(--ease);}
.nav-link:hover{color:var(--text);}
.nav-link.is-active{color:var(--text);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:60%;height:2px;border-radius:2px;background:linear-gradient(90deg,rgba(22,194,176,0),var(--primary),rgba(22,194,176,0));
}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.01em;color:var(--text);}
.brand-mark{width:30px;height:30px;flex:0 0 auto;}
.nav-cta{margin-left:6px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  color:var(--text);align-items:center;justify-content:center;font-size:18px;
}
.nav-toggle:hover{border-color:var(--line-strong);color:var(--primary);}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;top:0;right:0;z-index:95;width:86%;max-width:380px;height:100%;
  background:rgba(8,34,43,.97);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-left:1px solid var(--line);padding:20px 22px 32px;
  transform:translateX(102%);transition:transform 220ms ease-out;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:18px;}
.drawer-close:hover{border-color:var(--line-strong);color:var(--primary);}
.drawer-nav{display:flex;flex-direction:column;margin-bottom:22px;}
.drawer-nav a{
  display:flex;align-items:center;height:56px;border-bottom:1px solid var(--line);
  color:var(--muted);font-size:16px;
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--primary-hover);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(2,12,16,.62);z-index:90;opacity:0;visibility:hidden;transition:opacity 220ms ease-out;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* 阅读进度条 */
.read-progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:70;border-radius:0 3px 3px 0;
  background:linear-gradient(90deg,var(--primary),var(--primary-hover));
  transition:width 120ms linear;
}

/* ============ 文章首屏 ============ */
.article-hero{
  position:relative;padding:56px 0 var(--sec-sm);
  background-image:linear-gradient(180deg,rgba(6,24,31,.72),rgba(6,24,31,.94)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--faint);flex-wrap:wrap;margin-bottom:20px;}
.breadcrumb a{color:var(--faint);transition:color var(--ease);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:rgba(110,140,147,.6);}
.breadcrumb .current{color:var(--muted);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-h1{
  font-size:44px;font-weight:700;line-height:1.25;letter-spacing:-.01em;max-width:900px;margin-bottom:22px;
}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13.5px;color:var(--muted);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(110,140,147,.7);}

/* ============ 文章主体布局 ============ */
.article-layout{margin-top:48px;}
.article-main{padding-right:20px;}
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}

/* 正文排版 */
.article-body{font-size:16px;line-height:1.85;color:var(--text);overflow-wrap:anywhere;}
.article-body p{margin:0 0 1.2em;text-align:left;}
.article-body h2{
  font-size:26px;font-weight:700;line-height:1.4;margin:40px 0 16px;padding-left:14px;
  border-left:3px solid var(--primary);
}
.article-body h3{font-size:19px;font-weight:700;line-height:1.5;margin:28px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--primary-hover);}
.article-body ul,.article-body ol{margin:0 0 1.2em 1.4em;padding:0;}
.article-body li{margin-bottom:.5em;line-height:1.8;}
.article-body li::marker{color:var(--primary);}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--primary);
  background:rgba(22,194,176,.06);border-radius:0 12px 12px 0;color:var(--muted);font-size:15.5px;
}
.article-body img{border-radius:var(--r-img);margin:26px auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:8px;}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(22,194,176,.35);}
.article-body a:hover{color:var(--primary-hover);text-decoration:underline;text-underline-offset:3px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0;}
.article-body code{background:rgba(255,255,255,.07);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-body pre{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-img);
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto;
}
.article-body table::-webkit-scrollbar{height:6px;}
.article-body table::-webkit-scrollbar-thumb{background:rgba(22,194,176,.35);border-radius:6px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap;}
.article-body th{background:rgba(22,194,176,.08);color:var(--primary-hover);font-weight:600;}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-card);
  background:rgba(12,38,48,.42);
}
.empty-state i{font-size:30px;color:var(--primary);display:block;margin-bottom:14px;}
.empty-state p{color:var(--muted);margin-bottom:20px;}

/* ============ 侧栏 ============ */
.side-card{padding:22px;}
.side-title{font-size:16px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-title i{color:var(--primary);font-size:14px;}
.benefit-list{list-style:none;padding:0;margin:0 0 18px;}
.benefit-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:10px;}
.benefit-list i{color:var(--primary);font-size:12px;margin-top:7px;}
.side-links{display:flex;flex-direction:column;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--muted);transition:color var(--ease);
}
.side-links a:last-child{border-bottom:0;}
.side-links a:hover{color:var(--primary-hover);}
.side-links i{font-size:12px;color:var(--faint);}

/* ============ 文末 ============ */
.article-foot{margin-top:48px;padding-top:26px;border-top:1px solid var(--line);}
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:24px;}
.tag-label{font-size:13px;color:var(--faint);}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.related-card{padding:16px;}
.related-card .thumb{aspect-ratio:4/3;margin-bottom:14px;}
.related-card h3{font-size:16.5px;font-weight:600;line-height:1.5;margin-bottom:8px;}
.related-card p{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ============ CTA 横幅 ============ */
.cta-band{
  position:relative;overflow:hidden;border:1px solid var(--line);border-radius:var(--r-card);
  background:rgba(12,38,48,.62);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:40px 36px;box-shadow:var(--sh-card);
  display:grid;grid-template-columns:1.4fr .9fr;gap:28px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;inset:-40% -10% auto -10%;height:280px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(22,194,176,.14),transparent 72%);
}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.3;margin-bottom:10px;}
.cta-band p{color:var(--muted);font-size:15px;max-width:520px;}
.cta-actions{display:flex;gap:14px;justify-content:flex-end;flex-wrap:wrap;position:relative;z-index:1;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:#04121A;border-top:1px solid var(--line);
  padding:64px 0 0;margin-top:var(--sec-lg);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(22,194,176,0),rgba(22,194,176,.65),rgba(22,194,176,0));
}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;margin-bottom:14px;}
.foot-desc{font-size:14px;color:var(--muted);line-height:1.8;max-width:280px;margin-bottom:12px;}
.foot-domain{font-size:13px;color:var(--faint);letter-spacing:.02em;}
.foot-title{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text);}
.foot-links{display:flex;flex-direction:column;gap:11px;}
.foot-links a{font-size:14px;color:var(--muted);transition:color var(--ease);}
.foot-links a:hover{color:var(--primary-hover);}
.foot-form{margin-top:6px;}
.field-label{display:block;font-size:13px;color:var(--muted);margin-bottom:8px;}
.field-input{
  width:100%;background:rgba(6,24,31,.75);border:1px solid var(--line);border-radius:var(--r-btn-2);
  padding:12px 14px;color:var(--text);font-size:14.5px;margin-bottom:12px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field-input::placeholder{color:rgba(110,140,147,.75);}
.field-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(22,194,176,.16);}
.form-msg{font-size:13px;margin-top:10px;min-height:18px;}
.form-msg.is-ok{color:var(--primary-hover);}
.form-msg.is-err{color:var(--accent);}
.foot-bottom{
  margin-top:52px;padding:20px 0;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--faint);
}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:80;width:46px;height:46px;border-radius:14px;
  border:1px solid var(--line);background:rgba(12,38,48,.85);backdrop-filter:blur(12px);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:all var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:var(--line-strong);box-shadow:var(--sh-card);}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  :root{--sec-lg:72px;--sec-sm:44px;}
  .nav-side{display:none;}
  .nav-wrap{grid-template-columns:1fr auto;height:68px;}
  .nav-toggle{display:flex;}
  .brand{font-size:17px;}
  .article-h1{font-size:34px;}
  .article-main{padding-right:0;}
  .article-side{position:static;margin-top:36px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;padding:32px 26px;}
  .cta-actions{justify-content:flex-start;}
}
@media (max-width:639px){
  :root{--sec-lg:56px;}
  .rl-container{padding:0 18px;}
  .nav-wrap{padding:0 18px;}
  .brand span{font-size:16px;}
  .article-hero{padding:36px 0 40px;}
  .article-h1{font-size:28px;}
  .breadcrumb .current{max-width:170px;}
  .sec-title{font-size:22px;}
  .article-body h2{font-size:21px;margin-top:32px;}
  .article-body h3{font-size:17.5px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band h2{font-size:22px;}
  .btn,.btn-outline{min-height:44px;}
  .cta-actions .btn,.cta-actions .btn-outline{width:100%;}
  .foot-bottom{flex-direction:column;gap:6px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .card:hover,.btn-primary:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --c-primary:#16C2B0;
  --c-primary-hi:#2AD8C6;
  --c-primary-dk:#0E9C8E;
  --c-amber:#FF8A3D;
  --bg:#06181F;
  --bg-alt:#08222B;
  --panel:#0C2630;
  --tx:#E9F5F6;
  --tx-2:#A3BDC2;
  --tx-3:#6E8C93;
  --line:rgba(120,230,220,.16);
  --line-strong:rgba(22,194,176,.45);
  --r-card:16px;
  --r-btn:999px;
  --r-btn2:10px;
  --r-input:10px;
  --r-badge:6px;
  --r-img:12px;
  --sh-1:0 8px 24px rgba(0,0,0,.32);
  --sh-2:0 16px 40px rgba(0,0,0,.42);
  --sh-cta:0 10px 28px rgba(22,194,176,.32);
  --container:1200px;
  --narrow:760px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--tx);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--tx)}
h1{font-size:44px}
h2{font-size:28px}
h3{font-size:19px}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:15px}
::selection{background:rgba(22,194,176,.32)}

.rl-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.narrow{max-width:var(--narrow)}
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.sec-head{margin-bottom:44px;max-width:820px}
.sec-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-primary);letter-spacing:.08em;margin-bottom:12px;font-weight:600}
.sec-eyebrow::before{content:"";width:22px;height:1px;background:var(--c-primary);display:inline-block}
.sec-head p{color:var(--tx-2);font-size:16px;margin-top:14px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.sec-head-row .sec-head{margin-bottom:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-btn);
  padding:0 26px;height:48px;font-size:15px;font-weight:600;line-height:1;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,filter .2s ease-out;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn-primary{
  background:linear-gradient(135deg,var(--c-primary-hi),var(--c-primary));
  color:#04211E;
  box-shadow:var(--sh-cta);
}
.btn-primary:hover,.btn-primary:focus-visible{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 14px 34px rgba(22,194,176,.44);color:#04211E}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-cta)}
.btn-ghost{
  background:transparent;border-color:var(--line);color:var(--tx);
  border-radius:var(--r-btn2);
}
.btn-ghost:hover,.btn-ghost:focus-visible{background:rgba(22,194,176,.12);border-color:var(--line-strong);color:var(--tx)}
.btn-line{
  background:transparent;border-color:var(--c-primary);color:var(--c-primary);
  border-radius:var(--r-btn2);
}
.btn-line:hover,.btn-line:focus-visible{background:rgba(22,194,176,.12);color:var(--c-primary-hi)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.link-more{color:var(--c-primary);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--c-primary-hi);text-decoration:underline;text-underline-offset:3px}
.link-inline{color:var(--c-primary)}
.link-inline:hover{color:var(--c-primary-hi);text-decoration:underline;text-underline-offset:3px}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-line{border:1px solid var(--line);color:var(--tx-2);background:transparent}
.badge-cyan{background:rgba(22,194,176,.14);border:1px solid rgba(22,194,176,.28);color:var(--c-primary-hi)}
.badge-amber{background:var(--c-amber);border:1px solid var(--c-amber);color:#3A1A05}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,24,31,.84);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:16px;height:74px;
}
.nav-side{display:flex;align-items:center;gap:28px;flex:1 1 0;min-width:0}
.nav-side.left{justify-content:flex-end}
.nav-side.right{justify-content:flex-start}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--tx-2);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:20%;right:20%;bottom:0;height:2px;
  background:var(--c-primary);border-radius:2px;opacity:0;transform:scaleX(.6);
  transition:opacity .2s ease-out,transform .2s ease-out;
}
.nav-link:hover{color:var(--tx)}
.nav-link.is-active{color:var(--tx)}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;letter-spacing:-.01em;color:var(--tx);
  padding:6px 8px;flex:0 0 auto;
}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.nav-cta{margin-left:6px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn2);
  background:rgba(12,38,48,.6);border:1px solid var(--line);color:var(--tx);font-size:18px;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--line-strong)}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(6,24,31,.97);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  display:flex;flex-direction:column;padding:16px 22px 32px;
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;
}
.nav-drawer.is-open{opacity:1;visibility:visible}
.nav-drawer-head{display:flex;align-items:center;justify-content:space-between;height:60px;border-bottom:1px solid var(--line)}
.drawer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700}
.drawer-close{width:44px;height:44px;border-radius:var(--r-btn2);background:transparent;border:1px solid var(--line);color:var(--tx);font-size:18px}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px}
.drawer-link{
  display:flex;align-items:center;height:56px;font-size:16px;font-weight:500;color:var(--tx-2);
  border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--c-primary-hi)}
.drawer-cta{margin-top:26px}

/* ============ 面包屑 ============ */
.breadcrumb{padding:22px 0 0;font-size:13px;color:var(--tx-3)}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0}
.breadcrumb li::after{content:"/";margin-left:8px;color:var(--tx-3)}
.breadcrumb li:last-child::after{content:"";margin:0}
.breadcrumb a{color:var(--tx-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .current{color:var(--tx-3)}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  padding:64px 0 72px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.34;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(720px 420px at 12% 20%, rgba(22,194,176,.20), transparent 68%),
    linear-gradient(180deg, rgba(6,24,31,.72), rgba(6,24,31,.94));
}
.cat-hero .rl-container{position:relative;z-index:2}
.cat-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  border:1px solid var(--line);border-radius:999px;background:rgba(12,38,48,.6);
  font-size:13px;color:var(--c-primary-hi);margin-bottom:20px;
}
.cat-hero h1{font-size:46px;margin-bottom:16px}
.cat-hero h1 .h1-key{color:var(--c-primary-hi)}
.hero-sub{font-size:17px;color:var(--tx-2);max-width:620px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 26px}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;list-style:none}
.hero-trust li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--tx-2)}
.hero-trust i{color:var(--c-primary);font-size:13px}
.hero-side{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);
  background:linear-gradient(135deg,rgba(12,38,48,.9),rgba(8,34,43,.9));
  padding:22px;
}
.hero-side::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(255,255,255,.14),transparent)}
.hero-figure{
  position:relative;border-radius:var(--r-img);overflow:hidden;background:linear-gradient(135deg,#0C2630,#08222B);
  aspect-ratio:4/3;margin-bottom:18px;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;opacity:.92}
.hero-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,24,31,0),rgba(6,24,31,.66))}
.hero-side-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.hero-side-list li{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--tx-2);padding-bottom:12px;border-bottom:1px solid var(--line)}
.hero-side-list li:last-child{border-bottom:0;padding-bottom:0}
.hero-side-list strong{color:var(--tx);font-weight:600}

/* ============ chips ============ */
.chips-bar{padding:26px 0 0}
.chips{display:flex;gap:10px;overflow-x:auto;padding:4px 0 12px;scrollbar-width:thin}
.chips::-webkit-scrollbar{height:6px}
.chips::-webkit-scrollbar-thumb{background:rgba(22,194,176,.3);border-radius:6px}
.chip{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;
  border:1px solid var(--line);border-radius:999px;background:rgba(12,38,48,.5);
  color:var(--tx-2);font-size:14px;white-space:nowrap;transition:all .2s ease-out;
}
.chip:hover{color:var(--tx);border-color:var(--line-strong)}
.chip.is-active{border-color:var(--c-primary);background:rgba(22,194,176,.12);color:var(--tx);font-weight:600}

/* ============ 图文交错 ============ */
.zig{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.zig.reverse{grid-template-columns:5fr 7fr}
.zig.reverse .zig-text{order:2}
.zig.reverse .zig-media{order:1}
.zig h2{margin-bottom:16px}
.zig h2 + p{color:var(--tx-2)}
.zig-text > p{margin-bottom:22px}
.points{list-style:none;display:flex;flex-direction:column;gap:14px;margin-bottom:26px}
.points li{position:relative;padding-left:30px;color:var(--tx-2);font-size:15.5px}
.points li::before{
  content:"";position:absolute;left:2px;top:11px;width:13px;height:7px;
  border-left:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  transform:rotate(-45deg);
}
.points li strong{color:var(--tx);font-weight:600}
.zig-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  background:linear-gradient(135deg,#0C2630,#08222B);aspect-ratio:16/10;
}
.zig-media img{width:100%;height:100%;object-fit:cover}
.zig-media::after{content:"";position:absolute;inset:auto 0 0 0;height:52%;background:linear-gradient(180deg,transparent,rgba(6,24,31,.78))}
.zig-media figcaption{
  position:absolute;left:18px;right:18px;bottom:14px;z-index:2;
  font-size:13px;color:var(--tx-2);
}

/* ============ 卡片网格 ============ */
.card{
  position:relative;border-radius:var(--r-card);
  background:rgba(12,38,48,.55);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border:1px solid var(--line);box-shadow:var(--sh-1);
  padding:26px;overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(255,255,255,.14),transparent)}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--sh-2)}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .card,.hero-side,.site-header{background:#0C2630}
}

.media-frame{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  background:linear-gradient(135deg,#0C2630,#08222B);aspect-ratio:16/10;margin-bottom:18px;
}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out}
.card:hover .media-frame img{transform:scale(1.03)}
.media-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,24,31,0),rgba(6,24,31,.5))}

.benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.benefit-card h3{font-size:18px;margin-bottom:10px}
.benefit-card p{font-size:14.5px;color:var(--tx-2);margin:0}
.benefit-card .badge{margin-bottom:14px}
.card-icon{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(22,194,176,.12);border:1px solid rgba(22,194,176,.28);
  color:var(--c-primary-hi);font-size:16px;margin-bottom:16px;
}

/* ============ 数据条 ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  background:rgba(12,38,48,.45);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.stat:hover{border-color:var(--line-strong);box-shadow:var(--sh-1)}
.stat-num{font-size:32px;font-weight:700;color:var(--c-primary-hi);line-height:1.1;letter-spacing:-.02em}
.stat-num small{font-size:15px;color:var(--tx-2);font-weight:500;margin-left:4px}
.stat-label{font-size:14px;color:var(--tx-2);margin-top:8px}

/* ============ 权益清单条 ============ */
.spec-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.spec-item{
  display:flex;gap:16px;padding:22px;border-radius:var(--r-card);
  border:1px solid var(--line);background:rgba(12,38,48,.45);
  transition:border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.spec-item:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:var(--sh-1)}
.spec-item i{color:var(--c-primary);font-size:16px;margin-top:6px}
.spec-item h3{font-size:17px;margin-bottom:6px}
.spec-item p{font-size:14.5px;color:var(--tx-2);margin:0}

/* ============ CTA ============ */
.cta-banner{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-2);
  background:rgba(12,38,48,.6);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 320px at 18% 50%, rgba(22,194,176,.08), transparent 70%);
  pointer-events:none;
}
.cta-banner > *{position:relative;z-index:2}
.cta-banner h2{font-size:26px;margin-bottom:10px}
.cta-banner p{color:var(--tx-2);font-size:15px;margin:0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 表单 ============ */
.field-label{display:block;font-size:13px;color:var(--tx-2);margin-bottom:8px}
.field-input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-input);
  background:rgba(6,24,31,.7);border:1px solid var(--line);color:var(--tx);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field-input::placeholder{color:var(--tx-3)}
.field-input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(22,194,176,.16);outline:none}
.form-msg{font-size:13.5px;margin:10px 0 0;min-height:18px}
.form-msg.is-ok{color:var(--c-primary-hi)}
.form-msg.is-err{color:var(--c-amber)}
.foot-form{display:flex;flex-direction:column;gap:12px}

/* ============ 页脚 ============ */
.site-footer{
  background:#04121A;
  border-top:1px solid var(--line);
  position:relative;
  padding:72px 0 0;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,194,176,.6),transparent);
}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;margin-bottom:16px}
.foot-desc{font-size:14px;color:var(--tx-2);line-height:1.8;max-width:300px;margin-bottom:14px}
.foot-domain{font-size:13px;color:var(--tx-3);letter-spacing:.02em}
.foot-title{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--tx)}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{font-size:14px;color:var(--tx-2)}
.foot-links a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.foot-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--tx-3);
}
.site-footer .cell{margin-bottom:36px}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:70;
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(12,38,48,.9);border:1px solid var(--line);color:var(--tx-2);
  box-shadow:var(--sh-1);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{color:var(--c-primary);border-color:var(--line-strong)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:72px 0}
  .cat-hero{padding:52px 0 60px}
  .cat-hero-grid{grid-template-columns:1fr;gap:38px}
  .cat-hero h1{font-size:38px}
  .nav-side{display:none}
  .nav-wrap{height:66px}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .brand{margin:0}
  .nav-wrap{justify-content:space-between}
  .benefit-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .zig{grid-template-columns:1fr;gap:32px}
  .zig.reverse .zig-text{order:1}
  .zig.reverse .zig-media{order:2}
}
@media (max-width:767px){
  .section{padding:56px 0}
  h1{font-size:30px}
  .cat-hero h1{font-size:28px}
  h2{font-size:23px}
  .rl-container{padding:0 18px}
  .benefit-grid,.spec-list{grid-template-columns:1fr;gap:18px}
  .stats{grid-template-columns:1fr 1fr;gap:16px}
  .stat-num{font-size:26px}
  .cta-banner{padding:30px 22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .hero-actions .btn{width:100%}
  .hero-trust{gap:14px}
  .card{padding:22px}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (max-width:519px){
  .cat-hero h1{font-size:26px}
  .stats{grid-template-columns:1fr}
  .sec-head-row{margin-bottom:32px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  .card:hover,.spec-item:hover,.btn:hover{transform:none!important}
}
/* Foundation 默认样式覆盖 */
.grid-x{display:flex;flex-flow:row wrap}
.grid-margin-x{margin-left:-.9375rem;margin-right:-.9375rem}
.grid-margin-x > .cell{width:calc(100% - 1.875rem);margin-left:.9375rem;margin-right:.9375rem}
.grid-x > .cell{flex:0 0 auto;min-width:0}
.small-12{width:calc(100% - 1.875rem)}
@media screen and (min-width:640px){
  .grid-margin-x > .medium-6{width:calc(50% - 1.875rem)}
}
@media screen and (min-width:1024px){
  .grid-margin-x > .large-3{width:calc(25% - 1.875rem)}
}
a:hover{color:inherit}

/* roulang page: category3 */
:root{
  --ink-0:#06181F;
  --ink-1:#08222B;
  --panel:#0C2630;
  --brand:#16C2B0;
  --brand-hi:#2AD8C6;
  --brand-lo:#0E9C8E;
  --amber:#FF8A3D;
  --text:#E9F5F6;
  --text-2:#A3BDC2;
  --text-3:#6E8C93;
  --line:rgba(120,230,220,.16);
  --line-strong:rgba(22,194,176,.45);
  --glass:rgba(12,38,48,.55);
  --r-card:16px;
  --r-btn:999px;
  --r-btn-2:10px;
  --r-input:10px;
  --r-badge:6px;
  --r-img:12px;
  --sh-card:0 8px 24px rgba(0,0,0,.32);
  --sh-lift:0 16px 40px rgba(0,0,0,.42);
  --sh-glow:0 10px 28px rgba(22,194,176,.32);
  --sp-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--ink-0);
  background-image:
    radial-gradient(820px 480px at 84% -8%, rgba(22,194,176,.14), transparent 68%),
    radial-gradient(620px 420px at -6% 10%, rgba(255,138,61,.055), transparent 70%),
    radial-gradient(900px 520px at 50% 108%, rgba(22,194,176,.07), transparent 72%);
  background-repeat:no-repeat;
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--brand-hi)}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(22,194,176,.35);color:#fff}

.rl-container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}
.sect{padding:var(--sp-section) 0}
.sect-sm{padding:28px 0 0}
.sect-alt{background:var(--ink-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,24,31,.86);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  max-width:1200px;margin:0 auto;padding:0 20px;
  height:76px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;
}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-side.right{justify-content:flex-end}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;color:var(--text);letter-spacing:-.01em;white-space:nowrap;
}
.brand:hover{color:var(--text)}
.brand-mark{width:30px;height:30px;flex:0 0 30px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 2px;
  transition:color .2s ease-out;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-8px;width:0;height:2px;border-radius:2px;
  background:var(--brand);transform:translateX(-50%);transition:width .2s ease-out;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{width:60%}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{width:60%}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:rgba(12,38,48,.6);color:var(--text);font-size:18px;
}
.nav-toggle:hover{border-color:var(--line-strong);color:var(--brand-hi)}

.nav-drawer{
  position:fixed;inset:0;z-index:90;background:rgba(4,14,19,.92);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  display:none;flex-direction:column;padding:22px 22px 40px;
}
.nav-drawer.is-open{display:flex}
.nav-drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:rgba(12,38,48,.6);color:var(--text);font-size:18px;
}
.drawer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px}
.nav-drawer a.d-link{
  display:flex;align-items:center;height:56px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid rgba(120,230,220,.1);
}
.nav-drawer a.d-link.is-active{color:var(--brand-hi)}
.nav-drawer a.d-link:hover{color:var(--text)}
.drawer-cta{margin-top:22px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:0;
  padding:0 24px;height:46px;border-radius:var(--r-btn);border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,filter .2s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--brand-hi),var(--brand));
  color:#04191D;box-shadow:var(--sh-glow);
}
.btn-primary:hover{
  color:#04191D;transform:translateY(-2px);filter:brightness(1.06);
  box-shadow:0 16px 38px rgba(22,194,176,.42);
}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-outline{
  background:transparent;border-color:rgba(22,194,176,.45);color:var(--brand-hi);border-radius:var(--r-btn-2);
}
.btn-outline:hover{background:rgba(22,194,176,.12);color:var(--brand-hi)}
.btn-ghost{
  background:transparent;border-color:transparent;color:var(--brand-hi);border-radius:var(--r-btn-2);padding:0 10px;
}
.btn-ghost:hover{color:var(--brand-hi);text-decoration:underline;text-underline-offset:3px}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:600;line-height:1;letter-spacing:.02em;white-space:nowrap;
}
.badge-line{border:1px solid rgba(22,194,176,.42);color:var(--brand-hi);background:transparent}
.badge-soft{background:rgba(22,194,176,.14);color:var(--brand-hi)}
.badge-amber{background:var(--amber);color:#2A1204}
.badge-mute{border:1px solid var(--line);color:var(--text-3)}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);
  padding:22px 0 0;flex-wrap:wrap;
}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--brand-hi)}
.crumbs .sep{color:rgba(110,140,147,.6)}
.crumbs .now{color:var(--text-3)}

/* ============ Hero ============ */
.hero-wrap{padding:26px 0 0}
.hero{
  position:relative;overflow:hidden;border-radius:20px;border:1px solid var(--line);
  background-image:
    linear-gradient(112deg, rgba(6,24,31,.95) 0%, rgba(6,24,31,.82) 46%, rgba(8,34,43,.62) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;
  box-shadow:var(--sh-card);
  padding:56px 48px;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.24),transparent);
}
.hero-title{font-size:44px;margin:18px 0 12px;letter-spacing:-.01em}
.hero-sub{font-size:19px;color:var(--text);font-weight:600;max-width:640px}
.hero-text{font-size:16px;color:var(--text-2);max-width:660px;margin-top:12px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:28px}
.trust-row li{
  display:inline-flex;align-items:center;gap:9px;font-size:14px;color:var(--text-2);
  padding-right:28px;border-right:1px solid var(--line);
}
.trust-row li:last-child{border-right:0;padding-right:0}
.trust-row i{color:var(--brand)}

/* ============ 筛选 chips ============ */
.chips{
  display:flex;gap:10px;overflow-x:auto;padding:2px 2px 14px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;border:1px solid var(--line);color:var(--text-2);font-size:14px;
  background:rgba(12,38,48,.4);transition:all .2s ease-out;
}
.chip:hover{border-color:var(--line-strong);color:var(--text)}
.chip.is-on{border-color:var(--brand);background:rgba(22,194,176,.12);color:var(--text)}

/* ============ 板块标题 ============ */
.sect-head{margin-bottom:36px;max-width:760px}
.sect-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-hi);
  letter-spacing:.08em;margin-bottom:12px;
}
.sect-head h2{font-size:30px;margin-bottom:12px}
.sect-head p{color:var(--text-2);font-size:16px}

/* ============ 时间线 ============ */
.timeline{position:relative;margin-top:8px}
.tl-item{
  position:relative;display:grid;grid-template-columns:64px minmax(0,1fr);gap:22px;
  padding-bottom:26px;
}
.tl-item::before{
  content:"";position:absolute;left:31px;top:70px;bottom:0;width:1px;
  background:linear-gradient(180deg,rgba(22,194,176,.55),rgba(22,194,176,.05));
}
.tl-item:last-child{padding-bottom:0}
.tl-item:last-child::before{display:none}
.tl-node{
  width:64px;height:64px;border-radius:50%;display:grid;place-items:center;
  font-size:20px;font-weight:700;color:var(--brand-hi);
  background:radial-gradient(circle at 50% 30%, rgba(22,194,176,.22), rgba(12,38,48,.9) 70%);
  border:1px solid rgba(22,194,176,.42);box-shadow:var(--sh-card);
}
.tl-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:24px 26px;box-shadow:var(--sh-card);position:relative;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.tl-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.14),transparent);
  border-radius:var(--r-card) var(--r-card) 0 0;
}
.tl-card:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:var(--sh-lift)}
.tl-card h3{font-size:19px;margin-bottom:8px}
.tl-card p{color:var(--text-2);font-size:15px}
.tl-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tl-points li{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--text-3);
  border:1px solid var(--line);border-radius:var(--r-badge);padding:5px 10px;
}
.tl-points i{color:var(--brand);font-size:11px}
.tl-figure{margin-top:18px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.tl-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}

/* ============ 侧栏 sticky 卡 ============ */
.side-sticky{position:sticky;top:100px}
.side-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  box-shadow:var(--sh-card);padding:26px 24px;position:relative;
}
.side-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);
}
.side-card h3{font-size:20px;margin:12px 0 6px}
.side-card > p{color:var(--text-2);font-size:14px}
.side-list{margin:18px 0 22px;display:grid;gap:12px}
.side-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.6}
.side-list i{color:var(--brand);margin-top:4px}
.side-note{
  margin-top:16px;font-size:13px;color:var(--text-3);text-align:center;
}
.side-divider{height:1px;background:var(--line);margin:20px 0}

/* ============ 角色卡 ============ */
.role-grid{margin-top:6px}
.role-card{
  height:100%;background:rgba(12,38,48,.5);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.role-card:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:var(--sh-lift)}
.role-ico{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  background:rgba(22,194,176,.12);color:var(--brand-hi);font-size:16px;margin-bottom:14px;
}
.role-card h3{font-size:17px;margin-bottom:8px}
.role-card p{font-size:14px;color:var(--text-2);line-height:1.7}
.role-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.role-tags span{
  font-size:12px;color:var(--text-3);border:1px solid var(--line);border-radius:var(--r-badge);padding:3px 8px;
}

/* ============ 场景两栏 ============ */
.scene-list{display:grid;gap:14px;margin-top:4px}
.scene-item{
  display:flex;gap:16px;padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-card);
  background:rgba(12,38,48,.42);transition:border-color .2s ease-out,background-color .2s ease-out;
}
.scene-item:hover{border-color:var(--line-strong);background:rgba(12,38,48,.6)}
.scene-item i{color:var(--brand);font-size:16px;margin-top:5px}
.scene-item h3{font-size:17px;margin-bottom:5px}
.scene-item p{font-size:14px;color:var(--text-2)}
.scene-figure{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  box-shadow:var(--sh-card);height:100%;display:flex;flex-direction:column;
}
.scene-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.scene-figure .cap{padding:22px 22px 24px}
.scene-figure h3{font-size:18px;margin-bottom:8px}
.scene-figure p{font-size:14px;color:var(--text-2)}
.scene-figure .cap .btn{margin-top:16px}

/* ============ FAQ ============ */
.faq-wrap{max-width:760px;margin:0 auto}
.rl-acc{border-top:1px solid var(--line)}
.rl-acc-item{border-bottom:1px solid var(--line)}
.rl-acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;color:var(--text);text-align:left;
  padding:22px 2px;font-size:16px;font-weight:600;line-height:1.5;
  transition:color .2s ease-out;
}
.rl-acc-head:hover{color:var(--brand-hi)}
.rl-acc-icon{position:relative;width:18px;height:18px;flex:0 0 18px}
.rl-acc-icon::before,.rl-acc-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.rl-acc-icon::before{width:14px;height:2px}
.rl-acc-icon::after{width:2px;height:14px;transition:transform .2s ease-out,opacity .2s ease-out}
.rl-acc-item.is-open .rl-acc-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.rl-acc-body{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.rl-acc-body p{padding:0 32px 22px 2px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;border:1px solid rgba(22,194,176,.3);
  background:rgba(12,38,48,.6);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  box-shadow:var(--sh-card);padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 260px at 88% 50%, rgba(22,194,176,.13), transparent 70%);
}
.cta-band::after{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);
}
.cta-band h2{font-size:28px;margin-bottom:10px;position:relative}
.cta-band p{color:var(--text-2);font-size:15px;position:relative}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative}

/* ============ 表单 ============ */
.field-label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.field-input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-input);
  background:rgba(6,24,31,.72);border:1px solid var(--line);color:var(--text);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field-input::placeholder{color:var(--text-3)}
.field-input:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(22,194,176,.18)}
.field-input.is-error{border-color:var(--amber);box-shadow:0 0 0 3px rgba(255,138,61,.16)}
.form-msg{font-size:13px;margin-top:10px;min-height:18px}
.form-msg.ok{color:var(--brand-hi)}
.form-msg.err{color:var(--amber)}

/* ============ 页脚 ============ */
.site-footer{
  background:#041218;border-top:1px solid var(--line);position:relative;margin-top:0;
  padding:64px 0 0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,194,176,.55),transparent);
}
.foot-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;margin-bottom:14px}
.foot-desc{font-size:14px;color:var(--text-2);line-height:1.8;max-width:280px}
.foot-domain{display:inline-block;margin-top:12px;font-size:13px;color:var(--text-3)}
.foot-title{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text)}
.foot-links{display:grid;gap:10px}
.foot-links a{font-size:14px;color:var(--text-2)}
.foot-links a:hover{color:var(--brand-hi);text-decoration:underline;text-underline-offset:3px}
.foot-form{margin-top:4px}
.foot-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.site-footer .cell{margin-bottom:36px}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:24px;z-index:70;width:46px;height:46px;border-radius:12px;
  border:1px solid var(--line);background:rgba(12,38,48,.86);color:var(--brand-hi);
  display:grid;place-items:center;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s ease-out,border-color .2s ease-out;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:var(--line-strong)}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .rl-container{max-width:1140px}
}
@media (max-width:1023px){
  :root{--sp-section:72px}
  .nav-side{display:none}
  .nav-wrap{display:flex;justify-content:space-between;gap:12px}
  .nav-toggle{display:grid;place-items:center}
  .hero{padding:44px 34px}
  .hero-title{font-size:36px}
  .side-sticky{position:static;margin-top:32px}
  .cta-band{padding:36px 32px}
  .scene-figure{margin-top:26px}
}
@media (max-width:640px){
  :root{--sp-section:56px}
  body{font-size:15px}
  .rl-container{padding:0 16px}
  .nav-wrap{height:66px}
  .brand{font-size:17px}
  .brand-mark{width:26px;height:26px;flex:0 0 26px}
  .hero{padding:34px 22px;border-radius:16px}
  .hero-title{font-size:28px}
  .hero-sub{font-size:17px}
  .hero-actions .btn{width:100%}
  .trust-row{flex-direction:column;gap:10px}
  .trust-row li{border-right:0;padding-right:0}
  .sect-head h2{font-size:24px}
  .tl-item{grid-template-columns:48px minmax(0,1fr);gap:16px}
  .tl-node{width:48px;height:48px;font-size:17px}
  .tl-item::before{left:23px;top:54px}
  .tl-card{padding:20px 18px}
  .cta-band{padding:30px 22px;border-radius:16px}
  .cta-band h2{font-size:23px}
  .cta-actions .btn{width:100%}
  .foot-bottom{flex-direction:column}
  .to-top{right:14px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .btn:hover,.tl-card:hover,.role-card:hover{transform:none!important}
}

/* roulang page: category2 */
:root{
  --c-primary:#16C2B0;
  --c-primary-hover:#2AD8C6;
  --c-primary-active:#0E9C8E;
  --c-accent:#FF8A3D;
  --bg-base:#06181F;
  --bg-alt:#08222B;
  --bg-panel:#0C2630;
  --text-1:#E9F5F6;
  --text-2:#A3BDC2;
  --text-3:#6E8C93;
  --line:rgba(120,230,220,.16);
  --line-strong:rgba(22,194,176,.45);
  --glass:rgba(12,38,48,.55);
  --r-card:16px;
  --r-btn:999px;
  --r-btn-sm:10px;
  --r-input:10px;
  --r-badge:6px;
  --r-img:12px;
  --sh-card:0 8px 24px rgba(0,0,0,.32);
  --sh-lift:0 16px 40px rgba(0,0,0,.42);
  --sh-glow:0 10px 28px rgba(22,194,176,.32);
  --t:200ms ease-out;
  --sec:96px;
  --max-w:1200px;
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  padding:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block;border-style:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.1em}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--text-1)}
button,input{font-family:inherit;font-size:100%}
button{cursor:pointer}
table{border-collapse:collapse}

a{color:var(--c-primary);text-decoration:none;background:none;transition:color var(--t)}
a:hover{color:var(--c-primary-hover);text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:4px;
}

.rl-container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 24px}
.narrow{max-width:760px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:13px 26px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:0;
  text-align:center;
  text-decoration:none;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t),filter var(--t);
}
.btn:hover{text-decoration:none}
.btn-primary{
  background:linear-gradient(135deg,#16C2B0 0%,#0E9C8E 100%);
  color:#04191C;
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{
  color:#04191C;
  transform:translateY(-2px);
  box-shadow:0 14px 34px rgba(22,194,176,.45);
  filter:brightness(1.06);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(22,194,176,.28)}
.btn-outline{
  background:transparent;
  color:var(--c-primary);
  border-color:rgba(22,194,176,.5);
  border-radius:var(--r-btn-sm);
}
.btn-outline:hover{
  background:rgba(22,194,176,.12);
  color:var(--c-primary-hover);
  transform:translateY(-2px);
  text-decoration:none;
}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  color:var(--text-2);
  border-radius:var(--r-btn-sm);
  padding:8px 6px;
  min-height:auto;
}
.btn-ghost:hover{color:var(--c-primary);text-decoration:none}
.btn-sm{padding:9px 18px;font-size:14px;min-height:38px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ============ 徽章与标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:5px;
  height:24px;
  padding:0 10px;
  border-radius:var(--r-badge);
  font-size:12px;
  font-weight:500;
  line-height:1;
  white-space:nowrap;
}
.badge-outline{border:1px solid var(--line);color:var(--text-2);background:transparent}
.badge-primary{border:1px solid rgba(22,194,176,.4);background:rgba(22,194,176,.1);color:var(--c-primary-hover)}
.badge-accent{background:var(--c-accent);color:#241005;border:1px solid transparent;font-weight:600}
.badge-muted{background:rgba(110,140,147,.14);color:var(--text-3);border:1px solid transparent}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(6,24,31,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  max-width:var(--max-w);
  margin:0 auto;
  padding:0 24px;
  height:76px;
}
.nav-side{display:flex;align-items:center;gap:4px;flex:1 1 0;min-width:0}
.nav-side.right{justify-content:flex-end}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  font-size:19px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--text-1);
  text-decoration:none;
}
.brand:hover{color:var(--text-1);text-decoration:none}
.brand-mark{width:30px;height:30px;flex:0 0 30px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 13px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  border-radius:8px;
  text-decoration:none;
  transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--text-1);background:rgba(22,194,176,.08);text-decoration:none}
.nav-link.is-active{color:var(--text-1)}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:20%;
  right:20%;
  bottom:1px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
}
.nav-cta{margin-left:10px;color:#04191C}
.nav-cta:hover{color:#04191C}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  background:rgba(12,38,48,.7);
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--text-1);
  font-size:18px;
}
.nav-toggle:hover{border-color:var(--line-strong);color:var(--c-primary)}

.nav-drawer{
  position:fixed;
  top:0;
  right:0;
  width:100%;
  height:100%;
  z-index:130;
  padding:92px 24px 32px;
  background:rgba(6,24,31,.97);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  transform:translateX(102%);
  transition:transform 220ms ease-out;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.nav-drawer .drawer-label{
  font-size:13px;
  color:var(--text-3);
  margin:0 0 8px;
}
.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:56px;
  border-bottom:1px solid var(--line);
  color:var(--text-1);
  font-size:16px;
  font-weight:500;
  text-decoration:none;
}
.drawer-link:hover{color:var(--c-primary);text-decoration:none}
.drawer-link.is-active{color:var(--c-primary)}
.drawer-close{
  position:absolute;
  top:20px;
  right:24px;
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-1);
  font-size:18px;
}
.drawer-cta{margin-top:26px;width:100%}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:var(--text-3);opacity:.6}
.crumb .current{color:var(--text-3)}

/* ============ 分类首屏 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:88px 0 68px;
  border-bottom:1px solid var(--line);
  background:var(--bg-alt);
}
.page-hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center right;
  opacity:.26;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(6,24,31,.97) 0%,rgba(6,24,31,.86) 42%,rgba(8,34,43,.6) 100%);
}
.page-hero .rl-container{position:relative;z-index:2}
.hero-inner{max-width:820px}
.page-hero h1{
  font-size:46px;
  line-height:1.22;
  margin:16px 0 18px;
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:640px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.hero-stats li{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border:1px solid var(--line);
  border-radius:var(--r-badge);
  background:rgba(12,38,48,.5);
  font-size:13px;
  color:var(--text-2);
}
.hero-stats i{color:var(--c-primary);font-size:13px}

/* ============ 板块 ============ */
.section{padding:var(--sec) 0}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:40px;max-width:760px}
.sec-eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--c-primary);
  margin-bottom:12px;
}
.sec-title{font-size:30px;line-height:1.3;margin-bottom:14px}
.sec-desc{color:var(--text-2);font-size:16px;margin:0}
.sec-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:34px;
}
.sec-head-row .sec-head{margin-bottom:0}

/* ============ 玻璃卡片 ============ */
.card{
  position:relative;
  background:var(--glass);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-card);
  transition:border-color var(--t),transform var(--t),box-shadow var(--t);
}
.card::before{
  content:"";
  position:absolute;
  top:0;
  left:16px;
  right:16px;
  height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,.14),rgba(255,255,255,0));
  border-radius:2px;
}
.card:hover{
  border-color:var(--line-strong);
  transform:translateY(-2px);
  box-shadow:var(--sh-lift);
}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .card,.site-header,.nav-drawer{background:#0C2630}
}
.card-title{font-size:19px;margin-bottom:10px}
.card-text{color:var(--text-2);font-size:15px;margin:0 0 16px}

/* ============ 对照表 ============ */
.matrix-wrap{position:relative}
.table-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--bg-panel);
  box-shadow:var(--sh-card);
}
.cmp{
  width:100%;
  min-width:800px;
  font-size:14px;
  border-collapse:separate;
  border-spacing:0;
}
.cmp th,.cmp td{
  padding:15px 16px;
  text-align:left;
  border-bottom:1px solid var(--line);
  vertical-align:middle;
}
.cmp thead th{
  background:#0A2129;
  color:var(--text-1);
  font-weight:600;
  font-size:14px;
  white-space:nowrap;
  border-bottom:1px solid rgba(120,230,220,.22);
}
.cmp tbody th{
  position:sticky;
  left:0;
  z-index:2;
  background:#08222B;
  color:var(--text-1);
  font-weight:500;
  font-size:14px;
  white-space:nowrap;
  min-width:150px;
}
.cmp tbody td{color:var(--text-2);white-space:nowrap}
.cmp tbody tr:last-child th,.cmp tbody tr:last-child td{border-bottom:none}
.cmp tbody tr:hover td{background:rgba(22,194,176,.05)}
.cmp .col-rec{
  background:rgba(22,194,176,.07);
  border-left:1px solid rgba(22,194,176,.35);
  border-right:1px solid rgba(22,194,176,.35);
}
.cmp thead .col-rec{background:rgba(22,194,176,.13)}
.cmp .rec-head{display:flex;align-items:center;gap:8px}
.mark{display:inline-block;position:relative;width:16px;height:16px;vertical-align:-3px;margin-right:8px}
.mark-yes::after{
  content:"";
  position:absolute;
  left:3px;
  top:4px;
  width:10px;
  height:5px;
  border-left:2px solid var(--c-primary);
  border-bottom:2px solid var(--c-primary);
  transform:rotate(-45deg);
}
.mark-no::before,.mark-no::after{
  content:"";
  position:absolute;
  left:2px;
  top:7px;
  width:12px;
  height:2px;
  border-radius:2px;
  background:var(--text-3);
  opacity:.7;
}
.mark-no::before{transform:rotate(45deg)}
.mark-no::after{transform:rotate(-45deg)}
.cell-val{display:inline-flex;align-items:center}
.table-note{
  margin:14px 0 0;
  font-size:13px;
  color:var(--text-3);
}
.table-hint{
  display:none;
  margin-top:10px;
  font-size:13px;
  color:var(--c-primary);
}

/* ============ 说明要点列表 ============ */
.point-list{margin-top:18px}
.point-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:12px;
  color:var(--text-2);
  font-size:15px;
}
.point-list li:last-child{margin-bottom:0}
.point-list li::before{
  content:"";
  position:absolute;
  left:2px;
  top:10px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:rgba(22,194,176,.85);
  transform:rotate(45deg);
}
.point-list li strong{color:var(--text-1);font-weight:600}

/* ============ 图文区块 ============ */
.figure-card{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(135deg,#0C2630 0%,#08222B 100%);
  box-shadow:var(--sh-card);
}
.figure-card img{
  width:100%;
  height:100%;
  object-fit:cover;
  aspect-ratio:4/3;
  border-radius:var(--r-img);
  transition:transform 320ms ease-out;
}
.figure-card::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:46%;
  background:linear-gradient(180deg,rgba(6,24,31,0),rgba(6,24,31,.72));
  pointer-events:none;
}
.figure-card:hover img{transform:scale(1.03)}
.figure-caption{
  position:absolute;
  left:18px;
  bottom:14px;
  z-index:2;
  font-size:13px;
  color:var(--text-2);
}

/* ============ 功能条目清单 ============ */
.feat-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.feat-item{
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:20px 22px;
  background:var(--glass);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:border-color var(--t),transform var(--t),box-shadow var(--t),background var(--t);
}
.feat-item:hover{
  border-color:var(--line-strong);
  transform:translateY(-2px);
  box-shadow:var(--sh-card);
  background:rgba(12,38,48,.72);
}
.feat-icon{
  flex:0 0 42px;
  width:42px;
  height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:rgba(22,194,176,.12);
  border:1px solid rgba(22,194,176,.28);
  color:var(--c-primary);
  font-size:17px;
}
.feat-body{flex:1 1 auto;min-width:0}
.feat-body h3{font-size:17px;margin-bottom:6px}
.feat-body p{margin:0;font-size:14px;color:var(--text-2);line-height:1.7}
.feat-item .badge{flex:0 0 auto;margin-top:3px}

/* ============ FAQ ============ */
.faq-wrap{max-width:760px;margin:0 auto}
.rl-accordion{
  background:transparent;
  border:none;
  margin:0;
  border-top:1px solid var(--line);
}
.rl-accordion .accordion-item{
  background:transparent;
  border:none;
  border-bottom:1px solid var(--line);
}
.rl-accordion .accordion-title{
  position:relative;
  padding:24px 52px 24px 0;
  background:transparent;
  border:none;
  color:var(--text-1);
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  transition:color var(--t);
}
.rl-accordion .accordion-title:hover,
.rl-accordion .accordion-title:focus{
  background:transparent;
  color:var(--c-primary);
}
.rl-accordion .accordion-title::before{
  content:"" !important;
  position:absolute;
  right:10px;
  top:50%;
  width:14px;
  height:2px;
  margin-top:-1px;
  border-radius:2px;
  background:var(--c-primary);
  transform:none;
  transition:background var(--t);
}
.rl-accordion .accordion-item.is-active > .accordion-title::before{background:var(--c-primary)}
.rl-accordion .accordion-title::after{
  content:"";
  position:absolute;
  right:16px;
  top:calc(50% - 7px);
  width:2px;
  height:14px;
  border-radius:2px;
  background:var(--c-primary);
  transition:transform 200ms ease-out;
}
.rl-accordion .accordion-item.is-active > .accordion-title::after{transform:scaleY(0)}
.rl-accordion .accordion-content{
  padding:0 44px 24px 0;
  background:transparent;
  border:none;
  color:var(--text-2);
  font-size:15px;
  line-height:1.8;
}
.rl-accordion .accordion-content p{margin:0}

/* ============ CTA 横幅 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--glass);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  padding:44px;
  box-shadow:var(--sh-card);
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-120px;
  right:-80px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(22,194,176,.16),rgba(22,194,176,0) 68%);
  opacity:.8;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:27px;margin-bottom:10px}
.cta-band p{color:var(--text-2);margin:0;font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 表单 ============ */
.field-label{
  display:block;
  font-size:13px;
  color:var(--text-2);
  margin-bottom:8px;
}
.field-input{
  width:100%;
  min-height:44px;
  padding:11px 14px;
  color:var(--text-1);
  background:rgba(6,24,31,.72);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  transition:border-color var(--t),box-shadow var(--t);
}
.field-input::placeholder{color:var(--text-3)}
.field-input:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(22,194,176,.18);
}
.field-input.is-error{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(255,138,61,.16)}
.foot-form .btn{margin-top:14px}
.form-msg{
  margin:12px 0 0;
  font-size:13px;
  min-height:18px;
  color:var(--text-3);
}
.form-msg.is-ok{color:var(--c-primary)}
.form-msg.is-err{color:var(--c-accent)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:#04141A;
  padding:72px 0 0;
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,rgba(22,194,176,0),rgba(22,194,176,.55),rgba(22,194,176,0));
}
.foot-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  margin-bottom:14px;
  color:var(--text-1);
}
.foot-desc{
  font-size:14px;
  color:var(--text-3);
  line-height:1.8;
  max-width:280px;
  margin-bottom:12px;
}
.foot-domain{
  font-size:13px;
  color:var(--text-3);
  letter-spacing:.02em;
}
.foot-title{
  font-size:15px;
  font-weight:600;
  marginBottom:16px;
  margin-bottom:16px;
  color:var(--text-1);
}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{
  font-size:14px;
  color:var(--text-2);
  transition:color var(--t),padding-left var(--t);
}
.foot-links a:hover{color:var(--c-primary);padding-left:4px;text-decoration:none}
.foot-bottom{
  margin-top:56px;
  padding:22px 0 26px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;
  right:22px;
  bottom:24px;
  z-index:90;
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(12,38,48,.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  color:var(--text-2);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),color var(--t),border-color var(--t);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--c-primary);border-color:var(--line-strong)}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .page-hero h1{font-size:42px}
}

@media (max-width:1023px){
  :root{--sec:72px}
  .nav-side{display:none}
  .nav-toggle{display:inline-flex}
  .nav-wrap{justify-content:space-between}
  .brand{order:-1}
  .page-hero{padding:64px 0 54px}
  .page-hero h1{font-size:34px}
  .hero-sub{font-size:16px}
  .sec-title{font-size:26px}
  .cta-band{padding:34px}
  .cta-band h2{font-size:23px}
}

@media (max-width:767px){
  :root{--sec:56px}
  .rl-container{padding:0 18px}
  .nav-wrap{padding:0 18px;height:66px}
  .brand{font-size:17px}
  .brand-mark{width:26px;height:26px;flex:0 0 26px}
  .page-hero h1{font-size:28px}
  .hero-actions .btn{width:100%}
  .sec-title{font-size:23px}
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:10px}
  .feat-list{grid-template-columns:1fr}
  .feat-item{padding:18px}
  .table-hint{display:block}
  .cta-band{padding:26px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .rl-accordion .accordion-title{padding:20px 44px 20px 0;font-size:15px}
  .rl-accordion .accordion-content{padding:0 32px 20px 0;font-size:14px}
  .card{padding:20px}
}

@media (max-width:519px){
  .page-hero h1{font-size:25px}
  .sec-title{font-size:21px}
  .hero-stats li{font-size:12px;padding:7px 11px}
}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .card:hover,.feat-item:hover,.btn:hover,.figure-card:hover img{transform:none !important}
}

/* roulang page: category4 */
/* ===== 设计令牌 ===== */
:root{
  --rl-cyan:#16C2B0;
  --rl-cyan-hi:#2AD8C6;
  --rl-cyan-lo:#0E9C8E;
  --rl-amber:#FF8A3D;
  --rl-bg:#06181F;
  --rl-bg-alt:#08222B;
  --rl-panel:#0C2630;
  --rl-text:#E9F5F6;
  --rl-text-2:#A3BDC2;
  --rl-text-3:#6E8C93;
  --rl-line:rgba(120,230,220,.16);
  --rl-line-2:rgba(22,194,176,.45);
  --rl-glass:rgba(12,38,48,.55);
  --rl-cyan-soft:rgba(22,194,176,.12);
  --rl-shadow-1:0 8px 24px rgba(0,0,0,.32);
  --rl-shadow-2:0 16px 40px rgba(0,0,0,.42);
  --rl-glow:0 10px 28px rgba(22,194,176,.32);
  --rl-r-card:16px;
  --rl-r-btn:999px;
  --rl-r-btn2:10px;
  --rl-r-input:10px;
  --rl-r-badge:6px;
  --rl-r-img:12px;
  --rl-max:1200px;
  --rl-narrow:760px;
}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--rl-text);
  background:var(--rl-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--rl-cyan);text-decoration:none;transition:color .2s ease-out,text-underline-offset .2s ease-out}
a:hover{color:var(--rl-cyan-hi);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4{color:var(--rl-text);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
:focus{outline:none}
:focus-visible{outline:2px solid var(--rl-cyan);outline-offset:2px;border-radius:4px}
::selection{background:rgba(22,194,176,.3);color:#fff}

/* ===== 覆盖 Foundation 默认 ===== */
body,html{background:var(--rl-bg)}
a{color:var(--rl-cyan)}
a:hover,a:focus{color:var(--rl-cyan-hi)}
button,.button{background:none;border:0;color:inherit}
.grid-x{margin-left:-10px;margin-right:-10px}
.grid-x>.cell{padding-left:10px;padding-right:10px}
.grid-margin-x{margin-left:-10px;margin-right:-10px}
.grid-margin-x>.cell{margin-left:0;margin-right:0;padding-left:10px;padding-right:10px}

/* ===== 容器 ===== */
.rl-container{max-width:var(--rl-max);margin:0 auto;padding:0 20px;width:100%}
.rl-narrow{max-width:var(--rl-narrow);margin:0 auto}

/* ===== 跳转链接 ===== */
.skip-link{
  position:absolute;left:16px;top:-60px;z-index:999;
  background:var(--rl-cyan);color:#04241f;padding:10px 18px;border-radius:var(--rl-r-btn2);
  font-weight:600;transition:top .2s ease-out;
}
.skip-link:focus{top:16px;color:#04241f;text-decoration:none}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,24,31,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--rl-line);
}
.nav-wrap{
  position:relative;
  max-width:var(--rl-max);margin:0 auto;padding:0 20px;
  height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;font-weight:500;color:var(--rl-text-2);
  text-decoration:none;
  transition:color .2s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--rl-cyan);
  transition:width .2s ease-out;
}
.nav-link:hover{color:var(--rl-text);text-decoration:none}
.nav-link:hover::after{width:60%}
.nav-link.is-active{color:var(--rl-text)}
.nav-link.is-active::after{width:60%}
.brand{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;letter-spacing:-.01em;
  color:var(--rl-text);text-decoration:none;white-space:nowrap;
}
.brand:hover{color:var(--rl-text);text-decoration:none}
.brand-mark{width:30px;height:30px;flex:none}
.brand span{background:linear-gradient(92deg,#E9F5F6 30%,var(--rl-cyan) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}

.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--rl-r-btn2);
  border:1px solid var(--rl-line);
  background:rgba(12,38,48,.6);
  color:var(--rl-text);font-size:18px;
  align-items:center;justify-content:center;
  transition:border-color .2s ease-out,background .2s ease-out;
}
.nav-toggle:hover{border-color:var(--rl-line-2);background:rgba(22,194,176,.12)}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;top:0;left:0;z-index:120;
  width:86%;max-width:380px;height:100%;
  background:rgba(8,34,43,.96);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-right:1px solid var(--rl-line);
  padding:20px;
  transform:translateX(-102%);
  transition:transform .26s ease-out;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--rl-text)}
.drawer-close{
  width:44px;height:44px;border-radius:var(--rl-r-btn2);
  border:1px solid var(--rl-line);background:rgba(12,38,48,.6);
  color:var(--rl-text);font-size:17px;
}
.drawer-close:hover{border-color:var(--rl-line-2)}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  display:flex;align-items:center;
  min-height:56px;padding:0 4px;
  font-size:16px;font-weight:500;color:var(--rl-text-2);
  border-bottom:1px solid var(--rl-line);
  text-decoration:none;
}
.drawer-links a:hover{color:var(--rl-text);text-decoration:none}
.drawer-links a.is-active{color:var(--rl-cyan)}
.drawer-cta{margin-top:22px;border-bottom:0!important;justify-content:center}
.drawer-mask{
  position:fixed;inset:0;z-index:110;
  background:rgba(3,12,16,.66);
  opacity:0;transition:opacity .26s ease-out;
}
.drawer-mask.is-on{opacity:1}
body.no-scroll{overflow:hidden}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;
  font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--rl-r-btn);
  border:1px solid transparent;
  text-decoration:none;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,filter .2s ease-out;
}
.btn:hover{text-decoration:none}
.btn-primary{
  background:linear-gradient(135deg,var(--rl-cyan-hi),var(--rl-cyan));
  color:#04241F;
  box-shadow:var(--rl-glow);
}
.btn-primary:hover{color:#04241F;transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 14px 34px rgba(22,194,176,.42)}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-secondary{
  background:transparent;color:var(--rl-cyan);
  border-color:rgba(22,194,176,.48);
  border-radius:var(--rl-r-btn2);
}
.btn-secondary:hover{background:rgba(22,194,176,.12);color:var(--rl-cyan-hi);border-color:var(--rl-line-2);transform:translateY(-2px)}
.btn-ghost{
  background:transparent;color:var(--rl-text-2);
  padding:0 10px;min-height:40px;border-radius:var(--rl-r-btn2);
}
.btn-ghost:hover{color:var(--rl-cyan);text-decoration:underline;text-underline-offset:3px}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.nav-cta{box-shadow:0 6px 20px rgba(22,194,176,.28)}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:var(--rl-r-badge);
  font-size:12px;font-weight:600;line-height:1;
  white-space:nowrap;
}
.badge-outline{border:1px solid var(--rl-line);color:var(--rl-text-2);background:transparent}
.badge-solid{background:rgba(22,194,176,.14);color:var(--rl-cyan);border:1px solid rgba(22,194,176,.3)}
.badge-amber{background:var(--rl-amber);color:#2A1200;border:1px solid transparent}

/* ===== 卡片通用 ===== */
.card{
  position:relative;
  background:var(--rl-glass);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid var(--rl-line);
  border-radius:var(--rl-r-card);
  box-shadow:var(--rl-shadow-1);
  padding:26px;
  transition:border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;border-radius:var(--rl-r-card) var(--rl-r-card) 0 0;
  background:linear-gradient(90deg,rgba(255,255,255,.14),transparent);
}
.card:hover{border-color:var(--rl-line-2);transform:translateY(-2px);box-shadow:var(--rl-shadow-2)}
@supports not (backdrop-filter:blur(18px)){
  .card{background:var(--rl-panel)}
  .site-header{background:#06181F}
  .nav-drawer{background:#08222B}
}

/* ===== 面包屑 ===== */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--rl-text-3);margin-bottom:24px;
}
.breadcrumb a{color:var(--rl-text-2)}
.breadcrumb a:hover{color:var(--rl-cyan)}
.breadcrumb .sep{color:var(--rl-text-3);opacity:.6}
.breadcrumb .cur{color:var(--rl-text-3)}

/* ===== Hero ===== */
.cat-hero{
  position:relative;
  padding:56px 0 72px;
  background:
    radial-gradient(720px 340px at 12% -8%,rgba(22,194,176,.10),transparent 70%),
    linear-gradient(180deg,#06181F 0%,#08222B 100%);
  border-bottom:1px solid var(--rl-line);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  opacity:.10;
}
.cat-hero .rl-container{position:relative;z-index:1}
.cat-title{font-size:44px;margin:16px 0 14px;letter-spacing:-.01em}
.cat-sub{font-size:18px;color:var(--rl-text-2);max-width:620px}
.cat-lead{font-size:15px;color:var(--rl-text-3);max-width:620px;margin-top:14px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--rl-text-2)}
.trust-row i{color:var(--rl-cyan);font-size:14px}
.hero-media{
  position:relative;margin:0;
  border-radius:var(--rl-r-img);
  border:1px solid var(--rl-line);
  overflow:hidden;
  background:linear-gradient(160deg,#0C2630,#08222B);
  box-shadow:var(--rl-shadow-2);
}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--rl-r-img)}
.hero-media::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:52%;
  background:linear-gradient(180deg,rgba(6,24,31,0),rgba(6,24,31,.82));
  pointer-events:none;
}
.hero-media figcaption{
  position:absolute;left:18px;right:18px;bottom:14px;z-index:2;
  font-size:13px;color:var(--rl-text-2);
}
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  margin-top:48px;
}
.metric{
  background:rgba(12,38,48,.5);
  border:1px solid var(--rl-line);
  border-radius:var(--rl-r-card);
  padding:18px 20px;
}
.metric .num{font-size:22px;font-weight:700;color:var(--rl-cyan);line-height:1.3}
.metric .lbl{font-size:13px;color:var(--rl-text-3);margin-top:4px}

/* ===== 板块 ===== */
.section{padding:96px 0}
.section-alt{background:var(--rl-bg-alt);border-top:1px solid var(--rl-line);border-bottom:1px solid var(--rl-line)}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head h2{font-size:30px;margin-bottom:12px}
.sec-head p{color:var(--rl-text-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--rl-cyan);
  letter-spacing:.04em;margin-bottom:10px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--rl-cyan)}

/* ===== 筛选 chips ===== */
.chip-bar{
  display:flex;gap:10px;overflow-x:auto;
  padding:4px 2px 14px;
  margin-bottom:26px;
  scrollbar-width:thin;
}
.chip-bar::-webkit-scrollbar{height:5px}
.chip-bar::-webkit-scrollbar-thumb{background:rgba(22,194,176,.3);border-radius:999px}
.chip{
  flex:none;
  min-height:38px;padding:0 16px;
  display:inline-flex;align-items:center;
  font-size:14px;font-weight:500;
  color:var(--rl-text-2);
  background:rgba(12,38,48,.5);
  border:1px solid var(--rl-line);
  border-radius:var(--rl-r-btn);
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.chip:hover{color:var(--rl-text);border-color:var(--rl-line-2)}
.chip.is-active{color:var(--rl-cyan);border-color:rgba(22,194,176,.5);background:rgba(22,194,176,.12)}

/* ===== 清单卡 ===== */
.check-grid{margin-bottom:22px}
.check-item{
  display:flex;gap:16px;align-items:flex-start;
  background:rgba(12,38,48,.42);
  border:1px solid var(--rl-line);
  border-radius:var(--rl-r-card);
  padding:20px 22px;
  margin-bottom:20px;
  transition:border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.check-item:hover{
  border-color:var(--rl-line-2);
  background:rgba(12,38,48,.62);
  transform:translateY(-2px);
  box-shadow:var(--rl-shadow-1);
}
.check-item.is-hidden{display:none}
.check-icon{
  flex:none;width:40px;height:40px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(22,194,176,.12);
  border:1px solid rgba(22,194,176,.26);
  color:var(--rl-cyan);font-size:16px;
}
.check-body h3{font-size:17px;margin-bottom:6px}
.check-body p{font-size:14px;color:var(--rl-text-2);line-height:1.7}
.check-note{
  font-size:13px;color:var(--rl-text-3);
  border-left:2px solid var(--rl-line-2);
  padding-left:14px;margin-top:12px;
}
.empty-tip{
  display:none;
  padding:36px 20px;text-align:center;
  border:1px dashed var(--rl-line);
  border-radius:var(--rl-r-card);
  color:var(--rl-text-3);font-size:14px;
}
.empty-tip.is-on{display:block}

/* ===== 两栏说明卡 ===== */
.role-card{height:100%;display:flex;flex-direction:column}
.role-card h3{font-size:20px;margin-bottom:8px}
.role-card .role-desc{font-size:14px;color:var(--rl-text-3);margin-bottom:20px}
.role-list{display:flex;flex-direction:column;gap:14px;margin-top:auto}
.role-list li{display:flex;gap:10px;font-size:15px;color:var(--rl-text-2)}
.role-list i{color:var(--rl-cyan);margin-top:7px;font-size:12px;flex:none}
.role-tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}

/* ===== 背景条带 ===== */
.band{
  position:relative;
  border-radius:var(--rl-r-card);
  border:1px solid var(--rl-line);
  overflow:hidden;
  padding:48px 40px;
  background:linear-gradient(120deg,#0C2630,#08222B);
}
.band::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  opacity:.16;
}
.band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(6,24,31,.9),rgba(6,24,31,.5));
}
.band-inner{position:relative;z-index:1}
.band h2{font-size:28px;margin-bottom:12px}
.band p{color:var(--rl-text-2);max-width:640px}
.band-points{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.band-point{
  border-top:1px solid var(--rl-line);
  padding-top:18px;
}
.band-point .bp-t{font-size:16px;font-weight:600;margin-bottom:6px}
.band-point .bp-d{font-size:14px;color:var(--rl-text-3)}

/* ===== FAQ ===== */
.faq-wrap{max-width:var(--rl-narrow);margin:0 auto}
.rl-faq{border-top:1px solid var(--rl-line)}
.rl-faq-item{border-bottom:1px solid var(--rl-line)}
.rl-faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 2px;text-align:left;
  font-size:16px;font-weight:600;color:var(--rl-text);
  background:none;border:0;
  transition:color .2s ease-out;
}
.rl-faq-q:hover{color:var(--rl-cyan)}
.rl-faq-icon{
  position:relative;flex:none;width:18px;height:18px;
}
.rl-faq-icon::before,
.rl-faq-icon::after{
  content:"";position:absolute;background:var(--rl-cyan);border-radius:2px;
  transition:transform .22s ease-out,opacity .22s ease-out;
}
.rl-faq-icon::before{left:0;top:8px;width:18px;height:2px}
.rl-faq-icon::after{left:8px;top:0;width:2px;height:18px}
.rl-faq-item.is-open .rl-faq-icon::after{transform:rotate(90deg);opacity:0}
.rl-faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .26s ease-out;
}
.rl-faq-a p{
  font-size:15px;line-height:1.8;color:var(--rl-text-2);
  padding:0 2px 22px;
}
.rl-faq-item.is-open .rl-faq-a{max-height:420px}

/* ===== CTA ===== */
.cta-band{
  position:relative;
  border-radius:var(--rl-r-card);
  border:1px solid var(--rl-line);
  background:linear-gradient(120deg,rgba(12,38,48,.86),rgba(8,34,43,.72));
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--rl-shadow-2);
  padding:44px 40px;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-120px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(22,194,176,.16),transparent 68%);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{font-size:28px;margin-bottom:8px}
.cta-inner p{font-size:15px;color:var(--rl-text-2)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{
  background:#04121A;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(22,194,176,0),rgba(22,194,176,.7),rgba(22,194,176,0)) 1;
  padding:72px 0 0;
  margin-top:96px;
}
.foot-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--rl-text);margin-bottom:16px}
.foot-desc{font-size:14px;color:var(--rl-text-3);line-height:1.8;max-width:280px;margin-bottom:12px}
.foot-domain{font-size:13px;color:var(--rl-text-3);letter-spacing:.02em}
.foot-title{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--rl-text)}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:14px;color:var(--rl-text-2)}
.foot-links a:hover{color:var(--rl-cyan)}
.foot-form{display:flex;flex-direction:column;gap:10px}
.field-label{font-size:13px;color:var(--rl-text-2)}
.field-input{
  width:100%;min-height:44px;padding:10px 14px;
  font-size:14px;color:var(--rl-text);
  background:rgba(6,24,31,.8);
  border:1px solid var(--rl-line);
  border-radius:var(--rl-r-input);
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field-input::placeholder{color:var(--rl-text-3)}
.field-input:focus{
  outline:none;border-color:var(--rl-cyan);
  box-shadow:0 0 0 3px rgba(22,194,176,.16);
}
.field-input.is-error{border-color:var(--rl-amber);box-shadow:0 0 0 3px rgba(255,138,61,.14)}
.form-msg{font-size:13px;min-height:18px;margin:0}
.form-msg.ok{color:var(--rl-cyan)}
.form-msg.err{color:var(--rl-amber)}
.foot-bottom{
  margin-top:56px;padding:22px 0;
  border-top:1px solid var(--rl-line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--rl-text-3);
}

/* ===== 返回顶部 ===== */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:80;
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:#04241F;font-size:16px;
  background:linear-gradient(135deg,var(--rl-cyan-hi),var(--rl-cyan));
  box-shadow:var(--rl-glow);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s ease-out;
  border:0;
}
.to-top.is-on{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{filter:brightness(1.06);transform:translateY(-2px)}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .nav-side{display:none}
  .nav-toggle{display:inline-flex}
  .nav-wrap{justify-content:space-between}
  .brand{position:static;transform:none;left:auto;top:auto}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .cat-hero{padding:44px 0 60px}
  .cat-title{font-size:36px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .band{padding:36px 26px}
  .band-points{grid-template-columns:1fr;gap:16px}
  .cta-band{padding:34px 26px}
  .cta-inner h2{font-size:24px}
}
@media (max-width:639px){
  body{font-size:16px}
  .rl-container{padding:0 16px}
  .section{padding:56px 0}
  .cat-hero{padding:32px 0 48px}
  .cat-title{font-size:28px}
  .cat-sub{font-size:16px}
  .sec-head h2{font-size:23px}
  .sec-head{margin-bottom:28px}
  .metrics{grid-template-columns:1fr 1fr;gap:10px;margin-top:34px}
  .metric{padding:14px 16px}
  .metric .num{font-size:18px}
  .hero-actions .btn{width:100%}
  .trust-row{gap:14px;flex-direction:column}
  .card{padding:20px}
  .check-item{padding:18px}
  .band{padding:28px 20px}
  .band h2{font-size:22px}
  .cta-band{padding:28px 20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .foot-bottom{justify-content:flex-start}
  .nav-link{font-size:15px}
  .site-footer{padding-top:52px}
  .to-top{right:14px;bottom:16px;width:44px;height:44px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .card:hover,.check-item:hover,.btn:hover{transform:none!important}
}