/* roulang page: index */
:root{
  --bg:#070E17;
  --bg-alt:#0A1420;
  --bg-alt2:#0B1624;
  --cyan:#19C8E6;
  --cyan-deep:#0E8FB0;
  --cyan-light:#7BE4F5;
  --amber:#FFB020;
  --violet:#6E5BFF;
  --text:#EAF2F8;
  --text-2:#9FB3C4;
  --text-3:#6B7F92;
  --line:rgba(255,255,255,.06);
  --line-2:rgba(255,255,255,.09);
  --glass:rgba(255,255,255,.05);
  --r-card:20px;
  --r-sm:14px;
  --r-pill:999px;
  --shadow:0 18px 48px -24px rgba(0,0,0,.8);
  --glow:0 0 0 1px rgba(25,200,230,.28), 0 14px 44px -14px rgba(25,200,230,.5);
  --glow-amber:0 0 0 1px rgba(255,176,32,.35), 0 14px 44px -14px rgba(255,176,32,.45);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif;
  font-size:15px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{background:none;border:none;cursor:pointer;color:inherit;font:inherit}
input,select,textarea{font:inherit;color:inherit}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}

.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){ .site-container{padding:0 32px} }

.section{padding:56px 0}
@media (min-width:1024px){ .section{padding:96px 0} }
.section--alt{background:var(--bg-alt)}
.section--deep{background:var(--bg-alt2)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-title{font-size:24px;line-height:1.35;font-weight:700;letter-spacing:-.01em}
@media (min-width:1024px){ .section-title{font-size:34px} }
.section-desc{color:var(--text-2);font-size:15px;max-width:640px;margin-top:10px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:13px;font-weight:600;letter-spacing:.08em}

/* 导航 */
.nav-wrap{position:fixed;top:16px;left:50%;transform:translateX(-50%);width:min(1180px,calc(100% - 32px));z-index:80}
.nav-pill{display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 10px 0 16px;border-radius:var(--r-pill);background:rgba(10,20,32,.72);border:1px solid var(--line-2);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:var(--shadow);transition:background .3s ease,box-shadow .3s ease,border-color .3s ease}
.nav-pill.is-scrolled{background:rgba(7,14,23,.94);border-color:rgba(25,200,230,.2);box-shadow:0 22px 54px -24px rgba(0,0,0,.95)}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.logo-mark{position:relative;flex:none;width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,var(--cyan-light),var(--cyan-deep));box-shadow:0 0 18px -4px rgba(25,200,230,.7)}
.logo-mark::after{content:"";position:absolute;inset:9px;border-radius:50%;border:3px solid #05131B;border-right-color:transparent;transform:rotate(-45deg)}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-links{display:none;align-items:center;gap:2px}
@media (min-width:900px){ .nav-links{display:flex} }
.nav-link{position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;border-radius:var(--r-pill);color:var(--text-2);font-size:15px;transition:color .2s ease,background .2s ease}
.nav-link::after{content:"";position:absolute;left:50%;bottom:9px;width:3px;height:3px;border-radius:50%;background:var(--cyan);opacity:0;transform:translateX(-50%) scale(.4);transition:.2s ease}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link:hover::after{opacity:1;transform:translateX(-50%) scale(1)}
.nav-link.is-active{color:var(--cyan);background:rgba(25,200,230,.1)}
.nav-link.is-active::after{opacity:1;transform:translateX(-50%) scale(1)}
.nav-actions{display:flex;align-items:center;gap:8px}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--line-2);color:var(--text)}
@media (min-width:900px){ .nav-toggle{display:none} }
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{display:none;margin-top:10px;padding:8px;border-radius:24px;background:rgba(8,16,26,.96);border:1px solid var(--line-2);backdrop-filter:blur(16px);box-shadow:var(--shadow)}
.mobile-panel.is-open{display:block}
@media (min-width:900px){ .mobile-panel{display:none!important} }
.mobile-panel a{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 14px;border-radius:14px;color:var(--text-2);border-bottom:1px solid var(--line)}
.mobile-panel a:last-child{border-bottom:none}
.mobile-panel a.is-active{color:var(--cyan);background:rgba(25,200,230,.08)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-pill);font-size:15px;font-weight:600;white-space:nowrap;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,opacity .2s ease}
.btn:active{transform:translateY(1px)}
.btn-main{background:linear-gradient(135deg,var(--cyan),var(--cyan-deep));color:#05131B;box-shadow:0 0 0 1px rgba(25,200,230,.28),0 14px 44px -14px rgba(25,200,230,.5)}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(25,200,230,.45),0 20px 52px -16px rgba(25,200,230,.7)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(25,200,230,.08);transform:translateY(-2px)}
.btn-amber{background:var(--amber);color:#05131B;box-shadow:var(--glow-amber)}
.btn-amber:hover{filter:brightness(1.06);transform:translateY(-2px)}
.btn-block{width:100%}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-loading{opacity:.5;cursor:not-allowed;transform:none}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;background:rgba(25,200,230,.12);color:var(--cyan-light);border:1px solid rgba(25,200,230,.25)}
.badge--amber{background:rgba(255,176,32,.14);color:var(--amber);border-color:rgba(255,176,32,.32)}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid var(--line-2)}

/* Hero */
.hero{position:relative;padding:140px 0 0;overflow:hidden;isolation:isolate}
@media (min-width:1024px){ .hero{padding-top:170px;min-height:78vh} }
.hero-bg{position:absolute;inset:0;z-index:-2;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center right}
.hero-veil{position:absolute;inset:0;z-index:-1;background:
  linear-gradient(90deg,rgba(7,14,23,.97) 0%,rgba(7,14,23,.86) 42%,rgba(7,14,23,.42) 72%,rgba(7,14,23,.72) 100%),
  linear-gradient(180deg,rgba(7,14,23,.72) 0%,rgba(7,14,23,.25) 38%,var(--bg) 100%)}
.hero-glow{position:absolute;z-index:-1;border-radius:50%;filter:blur(90px);pointer-events:none}
.hero-glow.a{top:-80px;left:-60px;width:420px;height:420px;background:rgba(110,91,255,.16)}
.hero-glow.b{bottom:-120px;right:-80px;width:460px;height:460px;background:rgba(25,200,230,.16)}
.hero-grid-lines{position:absolute;inset:0;z-index:-1;opacity:.045;background-image:linear-gradient(rgba(255,255,255,1) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,1) 1px,transparent 1px);background-size:24px 24px}
.hero-inner{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media (min-width:1024px){ .hero-inner{grid-template-columns:7fr 5fr;gap:56px} }
.glass-card{background:var(--glass);border:1px solid var(--line-2);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-radius:var(--r-card)}
.hero-card{padding:28px 24px}
@media (min-width:1024px){ .hero-card{padding:40px 36px} }
.hero h1{font-size:30px;line-height:1.25;font-weight:700;letter-spacing:-.02em;margin:18px 0 0}
@media (min-width:1024px){ .hero h1{font-size:50px} }
.hero h1 em{font-style:normal;color:var(--cyan-light)}
.hero-sub{margin-top:18px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:560px}
@media (min-width:1024px){ .hero-sub{font-size:16px} }
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-trust{display:flex;flex-wrap:wrap;gap:18px;margin-top:26px;padding-top:20px;border-top:1px solid var(--line)}
.trust-item{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2)}
.trust-dot{width:18px;height:18px;border-radius:50%;background:rgba(25,200,230,.14);display:inline-flex;align-items:center;justify-content:center;color:var(--cyan);font-size:11px;flex:none}
.hero-visual{position:relative}
.hero-shot{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(25,200,230,.28);box-shadow:var(--glow);aspect-ratio:4/3;background:rgba(255,255,255,.04)}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.float-card{position:absolute;padding:12px 16px;border-radius:var(--r-sm);background:rgba(10,20,32,.82);border:1px solid var(--line-2);backdrop-filter:blur(14px);box-shadow:var(--shadow);font-size:12px;color:var(--text-2);animation:floaty 3s ease-in-out infinite}
.float-card strong{display:block;color:var(--text);font-size:18px;line-height:1.3}
.float-card.one{top:14px;left:-14px}
.float-card.two{bottom:20px;right:-10px;animation-delay:1.4s}
@media (max-width:639px){ .float-card.one{left:8px;top:8px} .float-card.two{right:8px;bottom:8px} }
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.hero-stats{margin-top:40px;display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line-2);border-radius:var(--r-card);overflow:hidden}
@media (min-width:900px){ .hero-stats{grid-template-columns:repeat(4,1fr)} }
.stat{padding:18px 20px;background:rgba(10,20,32,.72);backdrop-filter:blur(12px)}
.stat b{display:block;font-size:22px;font-weight:700;color:var(--cyan-light)}
.stat span{display:block;font-size:13px;color:var(--text-3);margin-top:4px}

/* 阶梯 */
.ladder{position:relative;display:grid;gap:16px;padding-left:26px}
.ladder::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:2px;border-radius:2px;background:linear-gradient(180deg,var(--cyan),rgba(25,200,230,.08))}
.ladder-item{position:relative;display:grid;grid-template-columns:1fr;gap:14px;padding:22px;border-radius:var(--r-card);background:rgba(255,255,255,.035);border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .2s ease,border-color .2s ease}
.ladder-item::before{content:"";position:absolute;left:-26px;top:34px;width:12px;height:12px;border-radius:50%;background:var(--bg);border:2px solid var(--cyan);transition:transform .2s ease,box-shadow .2s ease}
.ladder-item:hover{transform:translateX(4px);border-color:rgba(25,200,230,.32)}
.ladder-item:hover::before{transform:scale(1.25);box-shadow:0 0 0 5px rgba(25,200,230,.14)}
.ladder-item.is-top{border-color:rgba(255,176,32,.42)}
.ladder-item.is-top::before{border-color:var(--amber)}
@media (min-width:900px){
  .ladder-item{grid-template-columns:auto 1fr auto;align-items:center;gap:22px}
}
.ladder-no{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;font-weight:700;font-size:16px;color:#05131B;background:linear-gradient(135deg,var(--cyan-light),var(--cyan-deep))}
.ladder-item.is-top .ladder-no{background:linear-gradient(135deg,#FFD27A,var(--amber))}
.ladder-title{font-size:18px;font-weight:700}
.ladder-text{color:var(--text-2);font-size:14px;margin-top:6px}
.ladder-side{display:flex;align-items:center;gap:14px;justify-content:space-between}
.ladder-val{font-size:13px;color:var(--text-3);text-align:right}
.ladder-val b{display:block;color:var(--text);font-size:18px}

/* 对比 */
.seg{display:inline-flex;padding:4px;gap:4px;border-radius:var(--r-pill);background:rgba(255,255,255,.05);border:1px solid var(--line-2)}
.seg-btn{height:40px;padding:0 20px;border-radius:var(--r-pill);font-size:14px;font-weight:600;color:var(--text-2);transition:.2s ease}
.seg-btn.is-active{background:linear-gradient(135deg,var(--cyan),var(--cyan-deep));color:#05131B}
.plan-grid{display:grid;grid-template-columns:1fr;gap:20px;align-items:start}
@media (min-width:900px){ .plan-grid{grid-template-columns:repeat(3,1fr)} }
.plan-card{position:relative;display:flex;flex-direction:column;padding:26px 22px;border-radius:var(--r-card);background:rgba(255,255,255,.035);border:1px solid var(--line-2);box-shadow:var(--shadow);transition:transform .2s ease,border-color .2s ease}
.plan-card:hover{transform:translateY(-4px);border-color:rgba(25,200,230,.28)}
.plan-card.is-best{border-color:rgba(25,200,230,.45);box-shadow:var(--glow);background:rgba(25,200,230,.05)}
@media (min-width:900px){ .plan-card.is-best{margin-top:-12px} }
.plan-badge{position:absolute;top:-12px;right:20px;height:26px;padding:0 12px;display:inline-flex;align-items:center;border-radius:var(--r-pill);font-size:12px;font-weight:700;color:#05131B;background:linear-gradient(135deg,var(--cyan-light),var(--cyan-deep))}
.plan-name{font-size:19px;font-weight:700}
.plan-line{color:var(--text-2);font-size:14px;margin-top:8px;min-height:44px}
.plan-price{display:flex;align-items:baseline;gap:6px;margin:12px 0 6px}
.plan-price b{font-size:40px;font-weight:700;color:var(--cyan-light);line-height:1}
.plan-price span{font-size:13px;color:var(--text-3)}
.plan-list{margin-top:14px;border-top:1px solid var(--line)}
.plan-list li{display:flex;align-items:flex-start;gap:10px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--text-2);min-height:52px}
.plan-list li i{flex:none;width:18px;height:18px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-style:normal;margin-top:3px}
.plan-list li.yes i{background:rgba(25,200,230,.14);color:var(--cyan)}
.plan-list li.no{color:var(--text-3)}
.plan-list li.no i{background:rgba(255,255,255,.05);color:var(--text-3)}
.plan-card .btn{margin-top:20px}

/* 资讯列表 */
.news-card{display:flex;flex-direction:column;height:100%;border-radius:var(--r-card);overflow:hidden;background:rgba(255,255,255,.035);border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .2s ease,border-color .2s ease}
.news-card:hover{transform:translateY(-4px);border-color:rgba(25,200,230,.3)}
.news-thumb{display:block;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(25,200,230,.25),rgba(14,143,176,.1))}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:17px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
.news-card:hover .news-title{color:var(--cyan-light)}
.news-excerpt{font-size:14px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);padding-top:12px;border-top:1px solid var(--line)}
.news-meta .arrow{color:var(--cyan);transition:transform .2s ease}
.news-card:hover .news-meta .arrow{transform:translateX(4px)}
.empty-state{padding:48px 24px;text-align:center;border-radius:var(--r-card);border:1px dashed rgba(255,255,255,.14);background:rgba(255,255,255,.03)}
.empty-state .ico{width:52px;height:52px;margin:0 auto 14px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(25,200,230,.12);color:var(--cyan);font-size:22px}
.empty-state p{color:var(--text-2);margin-bottom:18px}

/* 反馈 */
.quote-card{padding:24px;border-radius:var(--r-card);background:rgba(255,255,255,.035);border:1px solid var(--line);box-shadow:var(--shadow);height:100%;transition:transform .2s ease,border-color .2s ease}
.quote-card:hover{transform:translateY(-4px);border-color:rgba(25,200,230,.26)}
.quote-card p{color:var(--text-2);font-size:14px;line-height:1.85}
.quote-user{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;color:#05131B;background:linear-gradient(135deg,var(--cyan-light),var(--cyan-deep));flex:none}
.quote-user b{display:block;font-size:14px}
.quote-user span{font-size:12px;color:var(--text-3)}

/* 限时条 */
.entry-bar{position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line-2);background:
  radial-gradient(560px 200px at 0% 50%,rgba(110,91,255,.16),transparent 70%),
  radial-gradient(560px 200px at 100% 50%,rgba(25,200,230,.16),transparent 70%),
  rgba(255,255,255,.05);
  backdrop-filter:blur(16px);padding:26px 24px}
.entry-bar::after{content:"";position:absolute;inset:0;opacity:.05;pointer-events:none;background:repeating-linear-gradient(135deg,rgba(255,255,255,1) 0 1px,transparent 1px 10px)}
.entry-inner{position:relative;display:grid;gap:20px;align-items:center}
@media (min-width:900px){ .entry-inner{grid-template-columns:auto 1fr auto;gap:32px} }
.countdown{display:flex;align-items:center;gap:8px}
.cd-cell{min-width:64px;padding:10px 12px;text-align:center;border-radius:var(--r-sm);background:rgba(7,14,23,.7);border:1px solid rgba(255,176,32,.22)}
.cd-cell b{display:block;font-size:26px;font-weight:700;color:var(--amber);line-height:1.1}
.cd-cell span{font-size:11px;color:var(--text-3)}
.cd-colon{color:var(--amber);font-weight:700;animation:blink 1s steps(2,start) infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}
.entry-text strong{display:block;font-size:18px;font-weight:700}
.entry-text span{display:block;color:var(--text-2);font-size:14px;margin-top:6px}

/* 表单 */
.form-card{padding:26px 22px;border-radius:var(--r-card);background:rgba(255,255,255,.04);border:1px solid var(--line-2);box-shadow:var(--shadow)}
@media (min-width:1024px){ .form-card{padding:32px 30px} }
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.field label i{color:var(--cyan);font-style:normal}
.input{width:100%;height:48px;padding:0 14px;border-radius:var(--r-sm);background:rgba(255,255,255,.04);border:1px solid var(--line-2);color:var(--text);transition:border-color .2s ease,box-shadow .2s ease}
textarea.input{height:auto;padding:12px 14px;resize:vertical;min-height:112px;line-height:1.75}
.input::placeholder{color:var(--text-3)}
.input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(25,200,230,.18)}
.input.is-error{border-color:#FF6B5A}
.err{display:none;margin-top:6px;font-size:12px;color:#FF6B5A}
.err.show{display:block}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;height:42px;padding:0 18px;border-radius:var(--r-pill);border:1px solid var(--line-2);color:var(--text-2);font-size:14px;cursor:pointer;transition:.2s ease}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip:hover{border-color:rgba(25,200,230,.4);color:var(--text)}
.chip.is-checked{border-color:var(--cyan);background:rgba(25,200,230,.1);color:var(--cyan-light)}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);cursor:pointer}
.check input{width:18px;height:18px;margin-top:4px;accent-color:var(--cyan);flex:none}
.form-note{margin-top:14px;font-size:12px;color:var(--text-3)}
.success-bar{display:none;margin-top:16px;padding:12px 16px;border-left:3px solid var(--cyan);border-radius:0 12px 12px 0;background:rgba(25,200,230,.08);font-size:14px;color:var(--cyan-light)}
.success-bar.show{display:block}
.side-note li{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line);color:var(--text-2);font-size:14px}
.side-note li span.ico{flex:none;width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:rgba(25,200,230,.1);color:var(--cyan);font-size:16px}

/* FAQ */
.faq-item{border-radius:var(--r-card);background:rgba(255,255,255,.035);border:1px solid var(--line);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease}
.faq-item.is-open{border-color:rgba(25,200,230,.32)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;min-height:56px;padding:16px 20px;text-align:left;font-size:16px;font-weight:600}
.faq-q .qt{position:relative;padding-left:16px}
.faq-q .qt::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:2px;background:var(--cyan)}
.faq-icon{flex:none;width:32px;height:32px;border-radius:50%;border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;color:var(--cyan);position:relative;transition:.2s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px}
.faq-item.is-open .faq-icon{background:rgba(25,200,230,.12)}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a p{padding:0 20px 20px 36px;color:var(--text-2);font-size:15px;line-height:1.85}

/* CTA 条 */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-card);padding:32px 24px;background:linear-gradient(120deg,rgba(25,200,230,.16),rgba(14,143,176,.06));border:1px solid rgba(25,200,230,.24)}
@media (min-width:1024px){ .cta-band{padding:40px 44px} }
.cta-band .inner{display:grid;gap:20px;align-items:center}
@media (min-width:900px){ .cta-band .inner{grid-template-columns:1fr auto} }

/* 页脚 */
.site-footer{background:#050B12;border-top:1px solid transparent;position:relative;padding:56px 0 0}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(25,200,230,.7),transparent)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px} }
.footer-title{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--text-2);font-size:14px;transition:color .2s ease}
.footer-links a:hover{color:var(--cyan)}
.footer-desc{color:var(--text-2);font-size:14px;margin-top:14px;max-width:280px}
.footer-bottom{margin-top:40px;padding:20px 0;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12px;color:var(--text-3)}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--cyan)}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s cubic-bezier(.2,.7,.3,1),transform .32s cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --bg:#070E17;
  --bg-2:#0A1420;
  --bg-3:#0B1624;
  --primary:#19C8E6;
  --primary-deep:#0E8FB0;
  --primary-light:#7BE4F5;
  --amber:#FFB020;
  --violet:#6E5BFF;
  --text:#EAF2F8;
  --text-2:#9FB3C4;
  --text-3:#6B7F92;
  --line:rgba(255,255,255,.09);
  --line-soft:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.05);
  --radius:20px;
  --radius-sm:14px;
  --pill:999px;
  --shadow:0 18px 48px -24px rgba(0,0,0,.8);
  --glow:0 0 0 1px rgba(25,200,230,.28),0 14px 44px -14px rgba(25,200,230,.5);
  --container:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.site-container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media(min-width:1024px){.site-container{padding:0 32px}}
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.tnum{font-variant-numeric:tabular-nums}

/* ============ 悬浮胶囊导航 ============ */
.nav-pill{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:min(1180px,calc(100% - 32px));height:64px;z-index:90;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 12px 0 16px;border-radius:var(--pill);
  background:rgba(10,20,32,.62);border:1px solid var(--line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:background .25s ease,box-shadow .25s ease;
}
.nav-pill.is-scrolled{background:rgba(7,14,23,.9);box-shadow:0 18px 48px -24px rgba(0,0,0,.95)}
.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 32px;position:relative;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 0 1px rgba(25,200,230,.35),0 8px 22px -10px rgba(25,200,230,.7);
}
.logo-mark::after{
  content:"";position:absolute;left:11px;top:8px;width:0;height:0;
  border-left:11px solid #05131B;border-top:8px solid transparent;border-bottom:8px solid transparent;
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;color:var(--text)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;padding:10px 14px;border-radius:var(--pill);font-size:15px;color:var(--text-2);transition:color .2s ease,background .2s ease}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--text);background:rgba(25,200,230,.12);box-shadow:inset 0 0 0 1px rgba(25,200,230,.26)}
.nav-link::after{content:"";position:absolute;left:50%;bottom:2px;width:3px;height:3px;border-radius:50%;background:var(--primary);opacity:0;transform:translateX(-50%);transition:opacity .2s ease}
.nav-link:hover::after{opacity:1}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--pill);cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid var(--line);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.nav-mobile{
  display:none;position:absolute;top:72px;left:0;right:0;padding:8px;
  flex-direction:column;border-radius:var(--radius);border:1px solid var(--line);
  background:rgba(8,16,26,.96);backdrop-filter:blur(16px);box-shadow:var(--shadow);
}
.nav-pill.is-open .nav-mobile{display:flex}
.nav-mobile a{display:flex;align-items:center;min-height:48px;padding:0 14px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line-soft)}
.nav-mobile a:last-child{border-bottom:0}
.nav-mobile a.is-active{color:var(--primary-light)}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--pill);font-size:15px;font-weight:600;
  border:0;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-main{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#05131B;box-shadow:0 14px 34px -18px rgba(25,200,230,.9)}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(25,200,230,.35),0 18px 46px -14px rgba(25,200,230,.65)}
.btn-main:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(25,200,230,.08);transform:translateY(-2px)}
.btn-amber{background:var(--amber);color:#05131B;box-shadow:0 0 0 1px rgba(255,176,32,.35),0 16px 40px -16px rgba(255,176,32,.6)}
.btn-amber:hover{filter:brightness(1.06);transform:translateY(-2px)}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--pill);
  font-size:12px;font-weight:600;background:rgba(25,200,230,.12);color:var(--primary-light);
  box-shadow:inset 0 0 0 1px rgba(25,200,230,.22);
}
.badge-amber{background:rgba(255,176,32,.14);color:var(--amber);box-shadow:inset 0 0 0 1px rgba(255,176,32,.3)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--pill);
  font-size:13px;color:var(--text-2);border:1px solid var(--line-soft);background:rgba(255,255,255,.03);
  transition:color .2s ease,border-color .2s ease;
}
.tag:hover{color:var(--primary-light);border-color:rgba(25,200,230,.4)}

/* ============ 卡片 ============ */
.card{
  border-radius:var(--radius);border:1px solid var(--line-soft);background:var(--bg-2);
  padding:24px;box-shadow:var(--shadow);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:rgba(25,200,230,.32)}
.glass{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}

/* ============ 文章页头 ============ */
.article-head{padding:120px 0 40px;position:relative;overflow:hidden}
@media(min-width:1024px){.article-head{padding:140px 0 48px}}
.article-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(680px 320px at 12% 0%,rgba(25,200,230,.16),transparent 70%),
             radial-gradient(560px 300px at 88% 12%,rgba(110,91,255,.16),transparent 72%);
}
.breadcrumb{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text-3);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head h1{
  position:relative;margin:14px 0 0;font-size:26px;line-height:1.35;font-weight:700;letter-spacing:-.02em;max-width:900px;
}
@media(min-width:1024px){.article-head h1{font-size:36px}}
.article-meta{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:20px;font-size:13px;color:var(--text-3)}
.article-meta i{color:var(--primary);margin-right:6px;font-size:15px}
.meta-share{display:flex;align-items:center;gap:8px;margin-left:auto}
.meta-share a{
  width:34px;height:34px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);transition:.2s
}
.meta-share a:hover{color:var(--primary);border-color:rgba(25,200,230,.4)}
.divider{height:1px;background:var(--line-soft);border:0;margin:0}

/* ============ 正文排版 ============ */
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:start}
.article-main{max-width:780px;min-width:0}
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:16px}
.article-body{font-size:17px;line-height:1.9;color:#D3E0EA}
.article-body>*+*{margin-top:1.2em}
.article-body p{color:#CBD9E5;margin:0}
.article-body h2{
  position:relative;margin:40px 0 16px;padding-left:16px;font-size:24px;line-height:1.4;font-weight:700;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.32em;bottom:.32em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
}
.article-body h3{margin:28px 0 12px;font-size:18px;font-weight:600;color:var(--primary-light)}
.article-body ul{list-style:none;padding:0;margin:0}
.article-body ul li{position:relative;padding-left:22px;margin:.5em 0}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--primary)}
.article-body ol{list-style:none;padding:0;margin:0;counter-reset:item}
.article-body ol li{position:relative;padding-left:36px;margin:.5em 0;counter-increment:item}
.article-body ol li::before{
  content:counter(item,decimal-leading-zero);position:absolute;left:0;top:.25em;
  font-size:13px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-left:3px solid var(--primary);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  background:var(--glass);border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px);color:var(--text-2);font-size:16px;
}
.article-body img{border-radius:16px;width:100%;height:auto;background:rgba(25,200,230,.06)}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--text-3);text-align:center}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(25,200,230,.35)}
.article-body a:hover{color:var(--primary-light)}
.article-body .table-wrap{overflow-x:auto;border:1px solid var(--line-soft);border-radius:var(--radius-sm)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px}
.article-body th{background:rgba(255,255,255,.05);text-align:left;padding:12px 16px;color:var(--text);font-weight:600}
.article-body td{padding:12px 16px;border-top:1px solid var(--line-soft);color:#C6D4E0}
.article-body pre{background:#05101A;border:1px solid var(--line-soft);border-radius:12px;padding:16px;overflow-x:auto}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;color:var(--primary-light)}
.empty-state{padding:48px 24px;text-align:center;border-radius:var(--radius);border:1px dashed var(--line);background:var(--bg-2)}
.empty-state i{font-size:26px;color:var(--primary);margin-bottom:12px;display:block}
.empty-state p{color:var(--text-2);margin:0 0 18px}

/* ============ 侧栏 / 通用块 ============ */
.aside-card{border-radius:var(--radius);border:1px solid var(--line-soft);background:var(--bg-2);padding:20px}
.aside-title{font-size:15px;font-weight:700;color:var(--text);margin:0 0 14px;display:flex;align-items:center;gap:8px}
.aside-title i{color:var(--primary)}
.aside-link{display:flex;gap:12px;padding:10px 0;border-top:1px solid var(--line-soft);transition:color .2s ease}
.aside-link:first-of-type{border-top:0}
.aside-link:hover .aside-link-t{color:var(--primary-light)}
.aside-link img{width:64px;height:48px;object-fit:cover;border-radius:10px;flex:0 0 64px}
.aside-link-t{font-size:14px;line-height:1.6;color:var(--text-2);margin:0}
.back-card{display:flex;align-items:center;gap:12px}
.icon-tile{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(25,200,230,.1);color:var(--primary);font-size:16px;
}

/* ============ 正文底部 ============ */
.article-foot{margin-top:44px;padding-top:28px;border-top:1px solid var(--line-soft)}
.foot-label{font-size:13px;color:var(--text-3);margin:0 0 12px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.next-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:28px}
.next-card{
  display:block;padding:20px;border-radius:var(--radius-sm);border:1px solid var(--line-soft);
  background:var(--bg-2);transition:transform .2s ease,border-color .2s ease
}
.next-card:hover{transform:translateY(-4px);border-color:rgba(25,200,230,.35)}
.next-card span{font-size:12px;color:var(--text-3)}
.next-card h3{margin:8px 0 0;font-size:16px;font-weight:600;color:var(--text);line-height:1.55}
.next-card:hover h3{color:var(--primary-light)}
.center-btn{display:flex;justify-content:center;margin-top:32px}

.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:32px}
.rec-card{
  display:flex;flex-direction:column;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line-soft);background:var(--bg-2);box-shadow:var(--shadow);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.rec-card:hover{transform:translateY(-4px);border-color:rgba(25,200,230,.32)}
.rec-thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(25,200,230,.18),rgba(14,143,176,.1))}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{margin:0;font-size:17px;font-weight:600;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-card:hover .rec-body h3{color:var(--primary-light)}
.rec-body p{margin:0;font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-meta{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}

/* ============ 要点速览 ============ */
.point-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:32px}
.point-card{padding:22px;border-radius:var(--radius-sm);border:1px solid var(--line-soft);background:var(--bg-3)}
.point-card .num{font-size:22px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums}
.point-card h3{margin:10px 0 6px;font-size:16px;font-weight:600}
.point-card p{margin:0;font-size:14px;line-height:1.75;color:var(--text-2)}

/* ============ 限时入口条 ============ */
.cta-strip{
  position:relative;overflow:hidden;border-radius:var(--radius);padding:24px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  backdrop-filter:blur(16px);display:flex;align-items:center;gap:24px;flex-wrap:wrap;
}
.cta-strip::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(420px 200px at 8% 50%,rgba(110,91,255,.14),transparent 70%),
             radial-gradient(420px 200px at 92% 50%,rgba(25,200,230,.16),transparent 72%),
             repeating-linear-gradient(135deg,rgba(255,255,255,.04) 0 1px,transparent 1px 24px);
}
.countdown{position:relative;display:flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums}
.countdown b{
  min-width:46px;padding:8px 10px;border-radius:12px;text-align:center;font-size:20px;
  background:rgba(255,176,32,.12);color:var(--amber);border:1px solid rgba(255,176,32,.28);
}
.countdown i{color:var(--amber);font-style:normal;font-size:18px}
.cta-strip .cta-text{position:relative;flex:1;min-width:200px;font-size:15px;color:var(--text-2)}
.cta-strip .btn{position:relative}

/* ============ FAQ ============ */
.faq-list{margin-top:32px;display:flex;flex-direction:column;gap:12px}
.faq-item{border-radius:var(--radius);border:1px solid var(--line);background:var(--glass);overflow:hidden;
  backdrop-filter:blur(16px);transition:border-color .2s ease}
.faq-item.is-open{border-color:rgba(25,200,230,.38)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;padding:18px 22px;text-align:left;
  background:transparent;border:0;cursor:pointer;min-height:56px;
}
.faq-q .bar{width:3px;height:18px;border-radius:3px;background:var(--primary);flex:0 0 3px}
.faq-q span{flex:1;font-size:16px;font-weight:600;color:var(--text)}
.faq-q .ic{
  width:28px;height:28px;border-radius:50%;flex:0 0 28px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--primary);font-size:12px;transition:transform .22s ease
}
.faq-item.is-open .faq-q .ic{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a p{margin:0;padding:0 22px 20px 39px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:#050B12;margin-top:24px;padding-top:1px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--primary),rgba(25,200,230,0))}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:56px 0 40px}
.footer-desc{margin:16px 0 0;font-size:14px;line-height:1.8;color:var(--text-2);max-width:34ch}
.footer-title{margin:0 0 16px;font-size:15px;font-weight:700;color:var(--text)}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .2s ease}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:20px 0 28px;border-top:1px solid var(--line-soft);font-size:12px;color:var(--text-3)
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s cubic-bezier(.2,.7,.3,1),transform .32s cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media(max-width:1279px){
  .article-grid{grid-template-columns:1fr;gap:40px}
  .article-main{max-width:100%}
  .article-aside{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .rec-grid,.point-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:1023px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media(max-width:900px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
}
@media(max-width:767px){
  body{font-size:16px}
  .nav-pill{top:12px;height:60px}
  .nav-mobile{top:68px}
  .article-head{padding-top:104px}
  .cta-strip{flex-direction:column;align-items:stretch;text-align:left}
  .cta-strip .btn{width:100%}
  .countdown{justify-content:flex-start}
}
@media(max-width:640px){
  .rec-grid,.point-grid,.next-grid,.article-aside{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .article-head h1{font-size:26px}
  .meta-share{margin-left:0;width:100%}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --bg:#070E17;
  --bg-2:#0A1420;
  --bg-3:#0B1624;
  --primary:#19C8E6;
  --primary-dark:#0E8FB0;
  --primary-light:#7BE4F5;
  --accent:#FFB020;
  --violet:#6E5BFF;
  --text:#EAF2F8;
  --text-2:#9FB3C4;
  --text-3:#6B7F92;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.05);
  --r-lg:20px;
  --r-sm:14px;
  --r-pill:999px;
  --shadow:0 18px 48px -24px rgba(0,0,0,.8);
  --glow:0 0 0 1px rgba(25,200,230,.28),0 14px 44px -14px rgba(25,200,230,.5);
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.site-container{padding:0 32px}}

/* 导航 */
.nav-pill{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:min(1180px,calc(100% - 32px));height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:0 12px 0 18px;
  border-radius:var(--r-pill);
  background:rgba(10,20,32,.62);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:0 12px 34px -22px rgba(0,0,0,.9);
  z-index:80;transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.nav-pill.is-scrolled{background:rgba(7,14,23,.9);box-shadow:0 18px 40px -20px rgba(0,0,0,.95);border-color:rgba(255,255,255,.12)}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.logo-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),#0B6E8C 78%);
  box-shadow:0 0 0 1px rgba(25,200,230,.35),0 8px 22px -10px rgba(25,200,230,.7);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:9px 9px 9px 9px;border-radius:4px;
  border:2px solid rgba(5,19,27,.72);border-right-color:transparent;border-bottom-color:transparent;
  transform:rotate(45deg);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-links{display:none;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--text-2);border-radius:var(--r-pill);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-dark));
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary-light);background:rgba(25,200,230,.1)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
  transition:transform .2s ease,top .2s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}
.mobile-panel{
  position:fixed;top:88px;left:50%;transform:translateX(-50%);
  width:min(1180px,calc(100% - 32px));
  background:rgba(9,17,28,.94);
  border:1px solid var(--line);border-radius:18px;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  padding:10px 14px;z-index:79;display:none;box-shadow:var(--shadow);
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:flex;align-items:center;min-height:48px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid var(--line-2);
}
.mobile-panel a:last-child{border-bottom:0}
.mobile-panel a.is-active{color:var(--primary-light)}
@media(min-width:768px){
  .nav-links{display:flex}
  .nav-toggle{display:none}
  .mobile-panel{display:none!important}
}
@media(min-width:1024px){.nav-pill{padding:0 14px 0 22px}}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  border:1px solid transparent;
}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px}
.btn-main{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#05131B;box-shadow:var(--glow);
}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(25,200,230,.4),0 18px 40px -14px rgba(25,200,230,.62)}
.btn-main:active{transform:translateY(1px)}
.btn-ghost{
  border-color:rgba(255,255,255,.18);color:var(--text);background:transparent;
}
.btn-ghost:hover{border-color:var(--primary);background:rgba(25,200,230,.08);transform:translateY(-2px)}
.btn-accent{
  background:linear-gradient(135deg,#FFC košo,#FFB020);
  background:linear-gradient(135deg,#FFCF6B,var(--accent));
  color:#05131B;box-shadow:0 0 0 1px rgba(255,176,32,.4),0 16px 38px -16px rgba(255,176,32,.6);
}
.btn-accent:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}

/* 通用 */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:rgba(25,200,230,.12);color:var(--primary-light);
  border:1px solid rgba(25,200,230,.28);
}
.badge-accent{background:rgba(255,176,32,.14);color:#FFD489;border-color:rgba(255,176,32,.32)}
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.section-alt{background:var(--bg-2)}
.section-head{max-width:760px;margin-bottom:32px}
.section-head h2{font-size:24px;line-height:1.35;font-weight:700;letter-spacing:-.01em}
@media(min-width:1024px){.section-head h2{font-size:34px}}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.85}
.eyebrow{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--primary);font-weight:600;margin-bottom:12px}
.divider{height:1px;background:var(--line-2);border:0;margin:0}

/* 页头 */
.page-head{
  position:relative;padding:126px 0 48px;
  background:
    radial-gradient(760px 340px at 88% 6%,rgba(110,91,255,.16),transparent 66%),
    radial-gradient(640px 300px at 4% 0%,rgba(25,200,230,.14),transparent 62%),
    linear-gradient(180deg,var(--bg-2),var(--bg));
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:24px 24px;opacity:.5;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.page-head .site-container{position:relative;z-index:2}
.crumb{font-size:13px;color:var(--text-3);margin-bottom:20px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:var(--text-3);transition:color .2s ease}
.crumb a:hover{color:var(--primary-light)}
.crumb span.now{color:var(--text-2)}
.head-grid{display:grid;gap:32px}
@media(min-width:1024px){.head-grid{grid-template-columns:7fr 5fr;align-items:center;gap:48px}}
.page-title{font-size:30px;line-height:1.25;font-weight:800;letter-spacing:-.02em;margin-top:16px}
@media(min-width:768px){.page-title{font-size:40px}}
@media(min-width:1280px){.page-title{font-size:46px}}
.page-sub{margin-top:18px;color:var(--text-2);font-size:15px;line-height:1.9;max-width:620px}
.head-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  aspect-ratio:16/9;background:linear-gradient(135deg,rgba(25,200,230,.18),rgba(110,91,255,.16));
}
.head-media img{width:100%;height:100%;object-fit:cover}
.head-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,14,23,.12),rgba(7,14,23,.68));
}
.anchor-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.anchor-pill{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--text-2);background:var(--glass);border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,transform .2s ease,background .2s ease;
}
.anchor-pill:hover{color:var(--text);border-color:rgba(25,200,230,.42);background:rgba(25,200,230,.1);transform:translateY(-2px)}

/* 时间线 */
.timeline{position:relative;padding-left:0;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:27px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(25,200,230,.05));
  border-radius:2px;
}
.tl-item{position:relative;display:grid;grid-template-columns:56px 1fr;gap:20px;padding:16px 0 32px}
.tl-index{
  position:relative;z-index:2;width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--primary-light);background:#08131F;border:1px solid rgba(25,200,230,.35);
  box-shadow:0 0 0 6px rgba(7,14,23,.9);
}
.tl-card{
  border-radius:var(--r-lg);padding:24px;background:var(--glass);
  border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(25,200,230,.4);box-shadow:var(--glow)}
.tl-card h3{font-size:18px;line-height:1.5;font-weight:700}
.tl-card > p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.85}
.tl-points{margin-top:18px;display:grid;gap:10px;border-top:1px solid var(--line-2);padding-top:16px}
.tl-points li{position:relative;padding-left:22px;font-size:14px;color:var(--text-2);line-height:1.75}
.tl-points li::before{
  content:"";position:absolute;left:4px;top:9px;width:7px;height:7px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(25,200,230,.7);
}
.tl-figure{margin-top:18px;border-radius:var(--r-sm);overflow:hidden;border:1px solid var(--line-2);aspect-ratio:4/3}
.tl-figure img{width:100%;height:100%;object-fit:cover}
@media(min-width:1024px){
  .tl-item{grid-template-columns:88px 1fr;gap:28px}
  .tl-index{width:88px;height:88px;font-size:22px}
  .timeline::before{left:43px}
  .tl-item:nth-child(even) .tl-card{margin-left:24px}
}

/* 表格 */
.table-wrap{
  border-radius:var(--r-lg);border:1px solid var(--line);overflow:hidden;
  background:var(--bg-3);box-shadow:var(--shadow);
}
.table-scroll{overflow-x:auto}
table.path-table{width:100%;border-collapse:collapse;min-width:720px}
table.path-table th,table.path-table td{
  padding:16px 20px;text-align:left;font-size:14px;line-height:1.7;
  border-bottom:1px solid var(--line-2);vertical-align:top;
}
table.path-table th{
  background:rgba(255,255,255,.05);color:var(--text);
  font-size:13px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
table.path-table td{color:var(--text-2)}
table.path-table tbody tr:hover td{background:rgba(25,200,230,.05)}
table.path-table td strong{color:var(--text);font-weight:600}
table.path-table tbody tr:last-child td{border-bottom:0}
.tag{display:inline-block;padding:2px 10px;border-radius:var(--r-pill);font-size:12px;background:rgba(110,91,255,.16);color:#C6BCFF;border:1px solid rgba(110,91,255,.28)}

/* 组合卡 */
.plan-grid{display:grid;gap:24px;margin-top:8px}
@media(min-width:640px){.plan-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.plan-grid{grid-template-columns:repeat(3,1fr)}}
.plan-card{
  border-radius:var(--r-lg);padding:24px;background:var(--bg-3);
  border:1px solid var(--line);box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.plan-card:hover{transform:translateY(-4px);border-color:rgba(25,200,230,.38);box-shadow:var(--glow)}
.plan-card.is-featured{border-color:rgba(255,176,32,.42);box-shadow:0 0 0 1px rgba(255,176,32,.22),0 18px 46px -22px rgba(255,176,32,.45)}
.plan-card h3{font-size:18px;font-weight:700;margin-top:14px}
.plan-card .plan-lead{margin-top:8px;color:var(--text-2);font-size:14px;line-height:1.75;min-height:48px}
.plan-num{margin-top:16px;font-variant-numeric:tabular-nums;font-size:30px;font-weight:800;color:var(--primary-light);letter-spacing:-.02em}
.plan-num small{font-size:13px;font-weight:500;color:var(--text-3);margin-left:6px;letter-spacing:0}
.plan-list{margin-top:18px;padding-top:16px;border-top:1px solid var(--line-2);display:grid;gap:10px}
.plan-list li{position:relative;padding-left:24px;font-size:14px;color:var(--text-2);line-height:1.7}
.plan-list li::before{
  content:"";position:absolute;left:2px;top:7px;width:12px;height:7px;
  border-left:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(-45deg);
}
.plan-card .btn{margin-top:22px}

/* 数据条 */
.stat-strip{
  margin-top:32px;display:grid;gap:1px;grid-template-columns:repeat(2,1fr);
  background:var(--line-2);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
}
@media(min-width:1024px){.stat-strip{grid-template-columns:repeat(4,1fr)}}
.stat-cell{background:var(--bg-3);padding:20px 18px}
.stat-cell b{display:block;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--text);letter-spacing:-.02em}
.stat-cell span{display:block;margin-top:6px;font-size:13px;color:var(--text-3)}

/* CTA 条 */
.cta-bar{
  position:relative;border-radius:24px;overflow:hidden;
  background:linear-gradient(120deg,rgba(25,200,230,.22),rgba(14,143,176,.28) 55%,rgba(110,91,255,.2));
  border:1px solid rgba(25,200,230,.3);
  padding:32px 24px;display:grid;gap:20px;align-items:center;
  box-shadow:var(--glow);
}
.cta-bar::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.055) 0 2px,transparent 2px 12px);
  opacity:.6;
}
.cta-bar > *{position:relative;z-index:2}
@media(min-width:1024px){.cta-bar{grid-template-columns:1fr auto;padding:40px 40px}}
.cta-bar h2{font-size:22px;line-height:1.4;font-weight:700}
@media(min-width:1024px){.cta-bar h2{font-size:28px}}
.cta-bar p{margin-top:10px;color:#D5E7F0;font-size:15px;line-height:1.8;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.inline-link{color:var(--primary-light);font-weight:600;border-bottom:1px solid rgba(123,228,245,.45);transition:color .2s ease,border-color .2s ease}
.inline-link:hover{color:#fff;border-color:#fff}

/* FAQ */
.faq-list{display:grid;gap:12px;margin-top:8px}
.faq-item{border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--line);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.is-open{border-color:rgba(25,200,230,.36);box-shadow:var(--glow)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;justify-content:space-between;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--text);min-height:44px;
}
.faq-q .q-text{position:relative;padding-left:16px;line-height:1.6}
.faq-q .q-text::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-dark));
}
.faq-icon{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;position:relative;
  transition:transform .22s ease,border-color .22s ease;
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary-light);border-radius:2px}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:transform .22s ease,opacity .22s ease}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a p{padding:0 20px 20px;color:var(--text-2);font-size:15px;line-height:1.85}

/* 表单 */
.consult-grid{display:grid;gap:24px}
@media(min-width:1024px){.consult-grid{grid-template-columns:5fr 7fr;gap:32px}}
.consult-card{
  border-radius:var(--r-lg);padding:24px;background:var(--bg-3);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
@media(min-width:1024px){.consult-card{padding:32px}}
.consult-card h2{font-size:22px;line-height:1.4;font-weight:700}
@media(min-width:1024px){.consult-card h2{font-size:28px}}
.consult-card p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.85}
.consult-points{margin-top:20px;display:grid;gap:12px}
.consult-points li{position:relative;padding-left:44px;font-size:14px;color:var(--text-2);line-height:1.75}
.consult-points li i{
  position:absolute;left:0;top:0;width:32px;height:32px;border-radius:10px;
  background:rgba(25,200,230,.1);border:1px solid rgba(25,200,230,.24);
  display:flex;align-items:center;justify-content:center;font-style:normal;
  font-size:13px;color:var(--primary-light);font-weight:700;
}
.form-grid{display:grid;gap:16px}
@media(min-width:640px){.form-row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.field .req{color:var(--accent);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:rgba(25,200,230,.05);
  box-shadow:0 0 0 3px rgba(25,200,230,.18);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#FF6B5A}
.field-error{display:none;margin-top:6px;font-size:12px;color:#FF8B7D}
.field.has-error .field-error{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);line-height:1.7}
.check-row input{width:18px;height:18px;min-height:18px;margin-top:2px;accent-color:var(--primary)}
.success-bar{
  display:none;margin-bottom:16px;padding:12px 16px;border-radius:var(--r-sm);
  background:rgba(25,200,230,.08);border-left:3px solid var(--primary);
  color:var(--primary-light);font-size:14px;
}
.success-bar.is-show{display:block}

/* 页脚 */
.site-footer{
  position:relative;margin-top:40px;background:#050B13;
  border-top:1px solid transparent;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(25,200,230,.7),transparent);
}
.footer-grid{display:grid;gap:32px;padding:48px 0 32px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr);padding:64px 0 40px}}
.footer-desc{margin-top:14px;color:var(--text-2);font-size:14px;line-height:1.8;max-width:300px}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .2s ease}
.footer-links a:hover{color:var(--primary-light)}
.footer-bottom{
  border-top:1px solid var(--line-2);padding:20px 0 32px;
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:12px;color:var(--text-3);
}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s cubic-bezier(.2,.7,.3,1),transform .32s cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition:none!important}
}

/* roulang page: category2 */
:root{
  --bg:#070E17;
  --bg-2:#0A1420;
  --bg-3:#0B1624;
  --primary:#19C8E6;
  --primary-deep:#0E8FB0;
  --primary-light:#7BE4F5;
  --amber:#FFB020;
  --violet:#6E5BFF;
  --text:#EAF2F8;
  --text-2:#9FB3C4;
  --text-3:#6B7F92;
  --ink:#05131B;
  --line:rgba(255,255,255,.06);
  --line-2:rgba(255,255,255,.09);
  --glass:rgba(255,255,255,.05);
  --r-card:20px;
  --r-inner:14px;
  --r-pill:999px;
  --shadow:0 18px 48px -24px rgba(0,0,0,.8);
  --shadow-glow:0 0 0 1px rgba(25,200,230,.28),0 14px 44px -14px rgba(25,200,230,.5);
  --shadow-amber:0 0 0 1px rgba(255,176,32,.35),0 14px 44px -16px rgba(255,176,32,.45);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif;
  font-size:15px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
input,textarea,select{font:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(25,200,230,.3);color:#fff}

.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.site-container{padding:0 32px}}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-pill{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:min(1180px,calc(100% - 32px));height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 12px 0 18px;border-radius:var(--r-pill);
  background:rgba(10,20,32,.72);
  border:1px solid var(--line-2);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);z-index:60;
  transition:background .25s ease-out,box-shadow .25s ease-out;
}
.nav-pill.is-scrolled{background:rgba(7,14,23,.94);box-shadow:0 20px 54px -26px rgba(0,0,0,.95)}
.brand{display:inline-flex;align-items:center;gap:10px;min-width:0}
.logo-mark{
  position:relative;width:32px;height:32px;flex:0 0 auto;border-radius:10px;
  background:linear-gradient(135deg,#7BE4F5,#19C8E6 46%,#0E8FB0);
  box-shadow:0 0 0 1px rgba(25,200,230,.35),0 10px 22px -12px rgba(25,200,230,.9);
}
.logo-mark::before{
  content:"";position:absolute;left:9px;top:9px;width:14px;height:14px;
  border-radius:5px;border:2px solid rgba(5,19,27,.85);
  border-right-color:transparent;border-bottom-color:transparent;transform:rotate(45deg);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:var(--r-pill);font-size:15px;color:var(--text-2);
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--primary-light);background:rgba(25,200,230,.12)}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:3px;width:16px;height:2px;
  border-radius:2px;background:var(--primary);transform:translateX(-50%);
}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);
  align-items:center;justify-content:center;cursor:pointer;transition:.2s ease-out;
}
.nav-toggle span{position:relative;display:block;width:16px;height:2px;border-radius:2px;background:var(--text)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:var(--text);
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
.nav-toggle:hover{border-color:var(--primary);background:rgba(25,200,230,.1)}
.nav-panel{display:none}
.nav-panel.is-open{
  display:block;position:fixed;top:84px;left:16px;right:16px;z-index:59;
  padding:8px;border-radius:var(--r-card);
  background:rgba(7,14,23,.97);border:1px solid var(--line-2);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.nav-panel a{
  display:flex;align-items:center;height:48px;padding:0 16px;border-radius:var(--r-inner);
  font-size:15px;color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.06);
}
.nav-panel a:last-child{border-bottom:0}
.nav-panel a.is-active{color:var(--primary-light);background:rgba(25,200,230,.12)}

/* ---------- 按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;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-sm{height:40px;padding:0 18px;font-size:14px}
.btn-main{background:linear-gradient(135deg,#19C8E6,#0E8FB0);color:var(--ink)}
.btn-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(25,200,230,.08)}
.btn-amber{background:var(--amber);color:var(--ink);box-shadow:var(--shadow-amber)}
.btn-amber:hover{filter:brightness(1.06);transform:translateY(-2px)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(25,200,230,.12);color:var(--primary-light);font-size:12px;font-weight:600;letter-spacing:.02em;
}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;padding:140px 0 48px;
  background-image:linear-gradient(112deg,rgba(7,14,23,.96) 0%,rgba(7,14,23,.84) 44%,rgba(7,14,23,.55) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:130px;
  background:linear-gradient(180deg,rgba(7,14,23,0),var(--bg));pointer-events:none;
}
.hero-inner{position:relative;z-index:1}
.page-hero h1{
  margin:18px 0 0;max-width:920px;
  font-size:clamp(30px,5vw,48px);line-height:1.25;letter-spacing:-.02em;font-weight:800;
}
.hero-lead{max-width:680px;margin:18px 0 0;font-size:16px;line-height:1.85;color:var(--text-2)}
@media (min-width:1024px){.hero-lead{font-size:17px}}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:30px}
.hero-stat{display:flex;align-items:baseline;gap:10px;padding-left:16px;border-left:2px solid rgba(25,200,230,.5)}
.stat-num{font-size:30px;font-weight:700;color:var(--primary-light);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat-label{font-size:14px;color:var(--text-2)}
.anchor-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.anchor-bar a{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.04);
  font-size:14px;color:var(--text-2);transition:.2s ease-out;
}
.anchor-bar a:hover{color:var(--primary-light);border-color:rgba(25,200,230,.5);background:rgba(25,200,230,.1)}
@media (min-width:1024px){.page-hero{padding:172px 0 72px}}

/* ---------- 板块通用 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-head{max-width:740px;margin-bottom:32px}
.section-head h2{font-size:24px;line-height:1.35}
@media (min-width:1024px){.section-head h2{font-size:34px}}
.section-sub{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ---------- 整宽视觉位 ---------- */
.wide-visual{
  margin:0;aspect-ratio:21/9;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line-2);box-shadow:var(--shadow);
}
.wide-visual img{width:100%;height:100%;object-fit:cover}
@media (max-width:767px){.wide-visual{aspect-ratio:16/9}}
.figure-caption{margin-top:14px;font-size:13px;color:var(--text-3);line-height:1.7}

/* ---------- 两列文本流 ---------- */
.point-columns{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:900px){.point-columns{grid-template-columns:1fr 1fr;gap:24px 40px}}
.point{
  padding:24px;border-radius:var(--r-card);background:var(--bg-2);
  border:1px solid var(--line);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.point:hover{transform:translateY(-4px);border-color:rgba(25,200,230,.35);box-shadow:var(--shadow)}
.point h3{position:relative;padding-left:16px;font-size:18px;line-height:1.5}
.point h3::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:18px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary-light),var(--primary-deep));
}
.point p{margin-top:10px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ---------- 四项数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:1fr 1fr;gap:1px;
  background:rgba(255,255,255,.06);border:1px solid var(--line-2);
  border-radius:var(--r-card);overflow:hidden;
}
@media (min-width:900px){.stat-strip{grid-template-columns:repeat(4,1fr)}}
.strip-cell{background:var(--bg-3);padding:24px 20px;display:flex;flex-direction:column;gap:6px;transition:background .2s ease-out}
.strip-cell:hover{background:#0D1B2C}
.strip-num{font-size:26px;font-weight:700;color:var(--primary-light);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.strip-label{font-size:15px;font-weight:600}
.strip-desc{font-size:13px;color:var(--text-3);line-height:1.65}

/* ---------- 处理流程 ---------- */
.flow-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:640px){.flow-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.flow-grid{grid-template-columns:repeat(4,1fr)}}
.flow-step{
  padding:24px;border-radius:var(--r-card);background:var(--bg-2);
  border:1px solid var(--line);transition:transform .2s ease-out,border-color .2s ease-out;
}
.flow-step:hover{transform:translateY(-4px);border-color:rgba(25,200,230,.35)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:var(--r-pill);background:rgba(25,200,230,.1);color:var(--primary);
  font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.flow-step h3{font-size:17px;line-height:1.5}
.flow-step p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:960px}
.faq-item{
  background:var(--glass);border:1px solid var(--line-2);border-radius:var(--r-card);
  overflow:hidden;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:border-color .2s ease-out;
}
.faq-item.is-open{border-color:rgba(25,200,230,.4)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;min-height:56px;
  padding:18px 22px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;cursor:pointer;
}
.faq-q::before{content:"";width:3px;height:18px;border-radius:2px;background:var(--primary);flex:0 0 auto}
.faq-icon{
  position:relative;margin-left:auto;width:26px;height:26px;flex:0 0 auto;
  border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.18);transition:.2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text-2);transform:translate(-50%,-50%);
}
.faq-icon::before{width:11px;height:1.5px}
.faq-icon::after{width:1.5px;height:11px;transition:transform .2s ease-out,opacity .2s ease-out}
.faq-item.is-open .faq-icon{border-color:rgba(25,200,230,.6);background:rgba(25,200,230,.12)}
.faq-item.is-open .faq-icon::before{background:var(--primary-light)}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s ease-out}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{padding:0 22px 22px 39px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- CTA 与咨询 ---------- */
.cta-band{
  position:relative;overflow:hidden;padding:32px;border-radius:var(--r-card);
  background:linear-gradient(118deg,#0B1624 0%,#0A1420 58%,#0E2534 100%);
  border:1px solid var(--line-2);display:grid;gap:28px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 1px,transparent 1px 24px);
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-90px;width:300px;height:300px;border-radius:var(--r-pill);
  background:radial-gradient(circle,rgba(110,91,255,.18),transparent 68%);pointer-events:none;
}
.cta-text{position:relative;z-index:1}
.cta-text h2{font-size:24px;line-height:1.4}
@media (min-width:1024px){.cta-text h2{font-size:30px}}
.cta-text p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:520px}
.consult-form{position:relative;z-index:1;display:grid;gap:14px}
.field{display:grid;gap:8px}
.field label{font-size:13px;color:var(--text-2)}
.field input,.field textarea{
  width:100%;min-height:48px;padding:13px 16px;border-radius:var(--r-inner);
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);
  color:var(--text);font-size:15px;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(25,200,230,.22);
}
.form-tip{font-size:12px;line-height:1.65;color:var(--text-3)}
.success-tip{
  display:none;align-items:center;gap:10px;padding:12px 16px;border-radius:10px;
  border-left:3px solid var(--primary);background:rgba(25,200,230,.08);
  font-size:14px;color:var(--text);
}
.success-tip.is-visible{display:flex}
@media (min-width:1024px){
  .cta-band{grid-template-columns:1fr 1fr;gap:48px;padding:44px;align-items:center}
}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;margin-top:80px;padding:72px 0 28px;background:#060C14}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--primary),rgba(25,200,230,0));
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-desc{margin-top:14px;max-width:320px;font-size:14px;line-height:1.8;color:var(--text-2)}
.footer-title{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .2s ease-out}
.footer-links a:hover{color:var(--primary-light)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:var(--text-3);line-height:1.7;
}
@media (max-width:560px){.footer-bottom{flex-direction:column;align-items:flex-start}}

/* ---------- 响应式导航 ---------- */
@media (max-width:900px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-pill{height:58px;padding:0 10px 0 14px}
  .logo-text{font-size:15px}
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s cubic-bezier(.2,.7,.3,1),transform .32s cubic-bezier(.2,.7,.3,1)}
.reveal.in-view{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none !important;transition:none !important}
}