/* roulang page: index */
:root{
  --c-bg-deep:#04070F;
  --c-bg:#071021;
  --c-bg-soft:#0C1A2E;
  --c-line:rgba(255,255,255,.08);
  --c-glass:rgba(255,255,255,.06);
  --c-glass-strong:rgba(255,255,255,.10);
  --c-primary:#12E0B2;
  --c-primary-deep:#08A98A;
  --c-primary-soft:rgba(18,224,178,.14);
  --c-accent:#FF6B2C;
  --c-accent-soft:rgba(255,107,44,.16);
  --c-violet:#7C5CFF;
  --t-1:#EDF4FF;
  --t-2:#A6B6CC;
  --t-3:#6E8099;
  --c-warn:#FFB020;
  --glow-primary:0 0 0 1px rgba(18,224,178,.45),0 10px 30px rgba(18,224,178,.30);
  --glow-accent:0 0 0 1px rgba(255,107,44,.45),0 10px 28px rgba(255,107,44,.28);
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --shadow-card:0 12px 30px rgba(0,0,0,.45);
  --shadow-nav:0 14px 34px rgba(0,0,0,.52);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  color:var(--t-1);
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(18,224,178,.10),transparent 62%),
    radial-gradient(760px 460px at 88% 4%,rgba(124,92,255,.10),transparent 60%),
    var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:min(1200px,calc(100% - 48px));margin-inline:auto}
@media(min-width:1440px){.container{width:min(1320px,calc(100% - 64px))}}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.dark-band{background:linear-gradient(180deg,rgba(4,7,15,.86),rgba(7,16,33,.72));border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}

/* ============ 顶部信息条 ============ */
.topbar{height:36px;background:#02050B;border-bottom:1px solid var(--c-line);font-size:13px;letter-spacing:.02em;color:var(--t-3)}
.topbar .container{display:flex;align-items:center;gap:18px;height:100%}
.topbar-tip{white-space:nowrap;color:var(--t-3)}
.topbar-tip b{color:var(--t-2);font-weight:600}
.topbar-notice{flex:1;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;color:var(--t-2)}
.topbar-notice i{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--c-primary);margin-right:8px;vertical-align:middle;box-shadow:0 0 10px rgba(18,224,178,.8)}
.topbar-cta{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;border-radius:999px;border:1px solid rgba(18,224,178,.32);color:var(--c-primary);background:var(--c-primary-soft);font-size:12.5px;white-space:nowrap;transition:.18s}
.topbar-cta:hover{box-shadow:var(--glow-primary);transform:translateY(-1px)}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(7,16,33,.66);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);border-bottom:1px solid var(--c-line);transition:background .2s,box-shadow .2s}
.site-header.is-scrolled{background:rgba(4,7,15,.90);box-shadow:var(--shadow-nav)}
.header-inner{display:flex;align-items:center;gap:24px;height:70px;position:relative}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--c-primary) 0%,#0B8F76 55%,#0C1A2E 100%);display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 1px rgba(18,224,178,.35),0 8px 20px rgba(18,224,178,.22)}
.brand-mark svg{width:19px;height:19px;fill:#04070F}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text b{font-size:16.5px;font-weight:700;letter-spacing:.01em}
.brand-text span{font-size:11.5px;color:var(--t-3);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{position:relative;padding:9px 14px;border-radius:var(--r-sm);font-size:15px;color:var(--t-2);transition:color .18s,background .18s}
.nav-links a:hover{color:var(--t-1);background:var(--c-glass)}
.nav-links a.active{color:var(--c-primary)}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary);box-shadow:0 0 12px rgba(18,224,178,.9)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:var(--c-glass);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t-1);border-radius:2px;transition:.2s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.progress{position:absolute;left:0;bottom:-1px;height:2px;width:0;background:linear-gradient(90deg,var(--c-primary),var(--c-violet));box-shadow:0 0 10px rgba(18,224,178,.7);transition:width .1s linear}
.drawer{display:none}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0);filter:brightness(.93)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.btn-primary{background:linear-gradient(135deg,#FF864F,#FF6B2C);color:#FFFFFF;box-shadow:var(--glow-accent)}
.btn-primary:hover{box-shadow:0 0 0 1px rgba(255,107,44,.6),0 16px 38px rgba(255,107,44,.38)}
.btn-glass{background:var(--c-glass);border:1px solid var(--c-line);color:var(--c-primary);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.btn-glass:hover{border-color:rgba(18,224,178,.5);box-shadow:var(--glow-primary)}
.btn-ghost{color:var(--t-2);padding:0 6px;height:auto}
.btn-ghost:hover{color:var(--c-primary)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-lg{height:50px;padding:0 28px;font-size:16px}
.btn-block{width:100%}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12.5px;letter-spacing:.02em;line-height:1.7;white-space:nowrap}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary);border:1px solid rgba(18,224,178,.28)}
.badge-accent{background:var(--c-accent-soft);color:#FF8F5C;border:1px solid rgba(255,107,44,.32)}
.badge-line{border:1px solid var(--c-line);color:var(--t-3)}
.badge-violet{background:rgba(124,92,255,.16);color:#A794FF;border:1px solid rgba(124,92,255,.3)}

/* ============ 通用板块头 ============ */
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;color:var(--c-primary);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--c-primary),transparent)}
.section-title{font-size:clamp(26px,3.2vw,40px);font-weight:700;line-height:1.36;letter-spacing:.01em}
.section-desc{margin-top:14px;color:var(--t-2);font-size:16px;line-height:1.9;max-width:40em}

/* ============ Hero ============ */
.hero{position:relative;padding:76px 0 92px;overflow:hidden;border-bottom:1px solid var(--c-line)}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,7,15,.34),rgba(7,16,33,.92)),url(/assets/images/backpic/back-1.webp) center/cover no-repeat;opacity:.5;pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(680px 380px at 78% 22%,rgba(18,224,178,.16),transparent 66%);pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:center}
.hero-copy{grid-column:span 6}
.hero-visual{grid-column:span 6}
.hero-badge{margin-bottom:20px}
.hero-title{font-size:clamp(32px,4.6vw,56px);font-weight:700;line-height:1.24;letter-spacing:.005em}
.hero-title em{font-style:normal;color:var(--c-primary);text-shadow:0 0 26px rgba(18,224,178,.35)}
.hero-sub{margin-top:20px;color:var(--t-2);font-size:17px;line-height:1.9;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.stat{flex:1 1 150px;min-width:140px;padding:16px 18px;border-radius:var(--r-md);background:var(--c-glass);border:1px solid var(--c-line);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.10)}
.stat b{display:block;font-size:24px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--c-primary);line-height:1.4}
.stat span{display:block;font-size:13px;color:var(--t-3);margin-top:2px}
.hero-visual{position:relative;min-height:400px}
.visual-frame{position:relative;aspect-ratio:16/11;border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(18,224,178,.22);background:linear-gradient(140deg,#0B1B2E,#05090F 70%),url(/assets/images/backpic/back-3.webp) center/cover no-repeat;background-blend-mode:normal;box-shadow:0 0 0 1px rgba(18,224,178,.14),0 26px 60px rgba(0,0,0,.6),0 0 60px rgba(18,224,178,.14)}
.visual-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,7,15,.05),rgba(4,7,15,.72))}
.float-card{position:absolute;z-index:3;padding:16px 18px;border-radius:var(--r-md);background:var(--c-glass-strong);border:1px solid var(--c-line);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card);min-width:186px}
.float-card .fc-label{font-size:12.5px;color:var(--t-3);letter-spacing:.04em}
.float-card .fc-value{display:flex;align-items:baseline;gap:8px;margin-top:6px}
.float-card .fc-value b{font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--t-1)}
.float-card .fc-value span{font-size:13px;color:var(--t-2)}
.float-card-a{top:-18px;left:-20px;border-color:rgba(18,224,178,.3)}
.float-card-a .fc-value b{color:var(--c-primary)}
.float-card-b{bottom:-22px;right:-14px;border-color:rgba(255,107,44,.3)}
.float-card-b .fc-value b{color:var(--c-accent)}
.hero-metrics{display:flex;gap:10px;flex-wrap:wrap;margin-top:44px;padding-top:22px;border-top:1px solid var(--c-line)}
.hero-metrics span{font-size:13px;color:var(--t-3);letter-spacing:.02em}
.hero-metrics span + span::before{content:"·";margin:0 10px;color:var(--t-3)}

/* ============ 交错卖点行 ============ */
.adv-row{display:grid;grid-template-columns:repeat(12,1fr);gap:40px;align-items:center;padding:44px 0;border-bottom:1px solid var(--c-line)}
.adv-row:last-child{border-bottom:0;padding-bottom:8px}
.adv-row:first-child{padding-top:8px}
.adv-media{grid-column:span 7}
.adv-body{grid-column:span 5}
.adv-row.reverse .adv-media{grid-column:span 5;order:2}
.adv-row.reverse .adv-body{grid-column:span 7;order:1}
.adv-index{font-size:52px;font-weight:700;line-height:1;color:transparent;-webkit-text-stroke:1px rgba(18,224,178,.55);letter-spacing:.04em;font-variant-numeric:tabular-nums;margin-bottom:14px}
.adv-body h3{font-size:23px;font-weight:600;line-height:1.5;margin-bottom:12px}
.adv-body p{color:var(--t-2);font-size:16px;line-height:1.9}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.check-list li{position:relative;padding-left:26px;color:var(--t-2);font-size:15.5px;line-height:1.8}
.check-list li::before{content:"";position:absolute;left:0;top:11px;width:12px;height:8px;border-left:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);transform:rotate(-45deg)}
.media-box{position:relative;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--c-line);background:linear-gradient(150deg,#0B1B2E,#05090F);aspect-ratio:4/3}
.media-box.wide{aspect-ratio:16/10}
.media-box img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.media-box:hover img{transform:scale(1.04)}
.media-box::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,7,15,0),rgba(4,7,15,.55));pointer-events:none}
.media-caption{position:absolute;left:16px;bottom:14px;z-index:2;font-size:12.5px;color:var(--t-2);letter-spacing:.02em}

/* ============ 演示区 ============ */
.demo-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:40px;align-items:center}
.demo-devices{grid-column:span 7;position:relative;padding-bottom:52px}
.demo-steps{grid-column:span 5}
.device{border-radius:var(--r-lg);border:1px solid rgba(18,224,178,.24);background:#05090F;box-shadow:var(--shadow-card),0 0 48px rgba(18,224,178,.16);overflow:hidden}
.device-bar{display:flex;align-items:center;gap:6px;height:34px;padding:0 14px;background:rgba(255,255,255,.05);border-bottom:1px solid var(--c-line)}
.device-bar i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.18)}
.device-bar i:first-child{background:rgba(255,107,44,.75)}
.device-bar i:nth-child(2){background:rgba(255,176,32,.7)}
.device-bar i:nth-child(3){background:rgba(18,224,178,.75)}
.device-bar span{margin-left:auto;font-size:12px;color:var(--t-3);letter-spacing:.04em}
.device-screen{aspect-ratio:16/9;background:linear-gradient(150deg,#0B1B2E,#05090F),url(/assets/images/backpic/back-2.png) center/cover no-repeat}
.device-mobile{position:absolute;right:-6px;bottom:0;width:186px;border-radius:20px}
.device-mobile .device-screen{aspect-ratio:9/16;background:linear-gradient(150deg,#0C1A2E,#05090F),url(/assets/images/backpic/back-3.webp) center/cover no-repeat}
.device-mobile .device-bar{height:26px;padding:0 10px;justify-content:center}
.device-mobile .device-bar i{width:6px;height:6px}
.steps{display:flex;flex-direction:column;gap:0}
.step{position:relative;padding:0 0 26px 58px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:17px;top:38px;bottom:0;width:1px;background:linear-gradient(180deg,rgba(18,224,178,.45),rgba(255,255,255,.05))}
.step:last-child::before{display:none}
.step-num{position:absolute;left:0;top:0;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--c-primary);background:var(--c-primary-soft);border:1px solid rgba(18,224,178,.35);font-variant-numeric:tabular-nums}
.step h4{font-size:17.5px;font-weight:600;margin-bottom:6px;line-height:1.6}
.step p{color:var(--t-2);font-size:15px;line-height:1.85}

/* ============ 证据区 ============ */
.proof-band{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--c-line);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;margin-bottom:56px}
.metric{background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));padding:26px 22px;text-align:left}
.metric b{display:block;font-size:34px;font-weight:700;line-height:1.25;font-variant-numeric:tabular-nums;color:var(--c-primary)}
.metric:nth-child(even) b{color:var(--c-accent)}
.metric span{display:block;font-size:13.5px;color:var(--t-3);margin-top:6px;letter-spacing:.02em}
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:56px}
.timeline::before{content:"";position:absolute;left:0;right:0;top:9px;height:1px;background:linear-gradient(90deg,rgba(18,224,178,.5),rgba(124,92,255,.35),rgba(255,255,255,.06))}
.tl-item{position:relative;padding-top:34px}
.tl-item::before{content:"";position:absolute;left:0;top:3px;width:13px;height:13px;border-radius:50%;background:var(--c-bg);border:2px solid var(--c-primary);box-shadow:0 0 14px rgba(18,224,178,.7)}
.tl-item time{display:block;font-size:13px;color:var(--c-primary);letter-spacing:.06em;font-variant-numeric:tabular-nums}
.tl-item h4{font-size:16.5px;font-weight:600;margin:8px 0 6px;line-height:1.6}
.tl-item p{font-size:14.5px;color:var(--t-2);line-height:1.8}
.quote-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.quote-card{grid-column:span 6;padding:28px;border-radius:var(--r-md);background:var(--c-glass);border:1px solid var(--c-line);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card);position:relative}
.quote-card::before{content:"“";position:absolute;right:24px;top:8px;font-size:64px;line-height:1;color:rgba(18,224,178,.22)}
.quote-card p{font-size:16.5px;line-height:1.9;color:var(--t-1)}
.quote-meta{margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line);display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--t-3)}

/* ============ 方案区 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:stretch}
.plan-card{grid-column:span 5;position:relative;padding:32px 28px;border-radius:var(--r-md);background:var(--c-glass);border:1px solid var(--c-line);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card);display:flex;flex-direction:column}
.plan-card.featured{grid-column:span 7;border-color:rgba(255,107,44,.42);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 0 0 1px rgba(255,107,44,.22),0 20px 48px rgba(0,0,0,.5)}
.plan-tag{position:absolute;right:24px;top:-12px}
.plan-name{font-size:19px;font-weight:600}
.plan-price{display:flex;align-items:baseline;gap:8px;margin:16px 0 6px}
.plan-price b{font-size:40px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1}
.plan-card.featured .plan-price b{color:var(--c-accent)}
.plan-price span{font-size:14px;color:var(--t-3)}
.plan-lead{font-size:14.5px;color:var(--t-2);margin-bottom:22px;line-height:1.8}
.plan-list{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}
.plan-list li{position:relative;padding-left:24px;font-size:15.5px;color:var(--t-2);line-height:1.8}
.plan-list li::before{content:"";position:absolute;left:0;top:11px;width:10px;height:6px;border-left:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);transform:rotate(-45deg)}
.plan-card.featured .plan-list li::before{border-color:var(--c-accent)}
.plan-card .btn{margin-top:auto}
.plan-note{margin-top:22px;font-size:13.5px;color:var(--t-3);line-height:1.8}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.news-main{grid-column:span 8;display:flex;flex-direction:column;gap:18px;min-width:0}
.news-side{grid-column:span 4;min-width:0}
.news-feature{display:block;border-radius:var(--r-md);overflow:hidden;background:var(--c-glass);border:1px solid var(--c-line);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card);transition:transform .18s ease,border-color .18s ease}
.news-feature:hover{transform:translateY(-2px);border-color:rgba(18,224,178,.3)}
.news-feature-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(150deg,#0B1B2E,#05090F)}
.news-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-feature:hover .news-feature-media img{transform:scale(1.04)}
.news-feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,7,15,.05),rgba(4,7,15,.55))}
.news-feature-body{padding:24px 26px 26px}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.news-feature-body h3{font-size:21px;font-weight:600;line-height:1.6}
.news-feature-body p{margin-top:12px;color:var(--t-2);font-size:15.5px;line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.link-more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14.5px;color:var(--c-primary);transition:gap .18s}
.news-feature:hover .link-more{gap:11px}
.news-row{display:grid;grid-template-columns:132px 1fr;gap:18px;padding:16px;border-radius:var(--r-md);background:rgba(255,255,255,.03);border:1px solid var(--c-line);transition:transform .18s ease,border-color .18s ease,background .18s ease}
.news-row:hover{transform:translateY(-2px);border-color:rgba(18,224,178,.32);background:var(--c-glass)}
.news-row-thumb{aspect-ratio:4/3;border-radius:var(--r-sm);overflow:hidden;background:linear-gradient(150deg,#0B1B2E,#05090F)}
.news-row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-row:hover .news-row-thumb img{transform:scale(1.05)}
.news-row-body{min-width:0;display:flex;flex-direction:column;justify-content:center}
.news-row-body h4{font-size:16.5px;font-weight:600;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row-body p{margin-top:8px;font-size:14.5px;color:var(--t-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row-body .news-meta{margin:10px 0 0}
.side-panel{padding:24px;border-radius:var(--r-md);background:var(--c-glass);border:1px solid var(--c-line);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card)}
.side-panel h3{font-size:17px;font-weight:600;display:flex;align-items:center;gap:8px;margin-bottom:16px}
.side-panel h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--c-primary);box-shadow:0 0 10px rgba(18,224,178,.7)}
.hot-list li + li{border-top:1px solid var(--c-line)}
.hot-list a{display:flex;gap:12px;align-items:flex-start;padding:14px 0;transition:color .18s}
.hot-list a:hover{color:var(--c-primary)}
.hot-list .hot-idx{font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--t-3);flex-shrink:0;padding-top:3px;width:20px}
.hot-list a:hover .hot-idx{color:var(--c-primary)}
.hot-list .hot-text{min-width:0}
.hot-list .hot-text b{display:block;font-size:15px;font-weight:500;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hot-list time{display:block;font-size:12.5px;color:var(--t-3);margin-top:6px}
.empty-state{padding:48px 32px;border-radius:var(--r-md);text-align:center;background:var(--c-glass);border:1px dashed rgba(18,224,178,.28);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.empty-icon{width:52px;height:52px;margin:0 auto 18px;border-radius:16px;display:flex;align-items:center;justify-content:center;background:var(--c-primary-soft);border:1px solid rgba(18,224,178,.3);color:var(--c-primary);font-size:22px;font-weight:700}
.empty-state h3{font-size:18px;font-weight:600;margin-bottom:10px}
.empty-state p{color:var(--t-2);font-size:15px;line-height:1.85;max-width:32em;margin:0 auto 22px}
.side-mini{margin-top:18px;padding:20px;border-radius:var(--r-md);background:linear-gradient(150deg,rgba(124,92,255,.14),rgba(255,255,255,.03));border:1px solid rgba(124,92,255,.24)}
.side-mini h4{font-size:15.5px;font-weight:600;margin-bottom:8px}
.side-mini p{font-size:14px;color:var(--t-2);line-height:1.8;margin-bottom:14px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.faq-col{grid-column:span 3}
.faq-col h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.4}
.faq-col p{margin-top:14px;color:var(--t-2);font-size:15px;line-height:1.9}
.faq-list{grid-column:span 9;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;transition:border-color .18s,background .18s}
.faq-item:hover{border-color:rgba(18,224,178,.28)}
.faq-item.open{background:var(--c-glass-strong);border-color:rgba(18,224,178,.34)}
.faq-q{width:100%;display:flex;align-items:center;gap:16px;padding:20px;text-align:left;font-size:16.5px;font-weight:600;line-height:1.7}
.faq-q .faq-mark{margin-left:auto;flex-shrink:0;width:26px;height:26px;border-radius:8px;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:16px;transition:transform .2s ease,background .2s ease}
.faq-item.open .faq-mark{background:var(--c-primary-soft);border-color:rgba(18,224,178,.4);transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height .28s ease,opacity .2s ease}
.faq-item.open .faq-a{max-height:340px;opacity:1}
.faq-a-inner{padding:0 20px 22px 20px;border-left:2px solid var(--c-primary);margin-left:20px;padding-left:18px}
.faq-a-inner p{color:var(--t-2);font-size:15.5px;line-height:1.9}

/* ============ CTA 带 ============ */
.cta-band-wrap{padding:0 0 96px}
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-lg);padding:52px;background:linear-gradient(120deg,rgba(18,224,178,.14),rgba(124,92,255,.12) 55%,rgba(255,107,44,.12));border:1px solid var(--c-line);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card)}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(520px 300px at 84% 30%,rgba(255,107,44,.18),transparent 68%);pointer-events:none}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:32px;justify-content:space-between}
.cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.4;max-width:22em}
.cta-inner p{margin-top:12px;color:var(--t-2);font-size:16px;line-height:1.9;max-width:36em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-bg-deep);border-top:1px solid var(--c-line)}
.footer-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:32px;padding:64px 0 48px}
.footer-brand{grid-column:span 4}
.footer-nav{grid-column:span 5;display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.footer-side{grid-column:span 3}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--t-2);font-size:15px;line-height:1.9;max-width:30em}
.footer-contact{margin-top:20px;display:flex;flex-direction:column;gap:8px;font-size:14.5px;color:var(--t-3)}
.footer-contact span b{color:var(--t-2);font-weight:500}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14.5px;color:var(--t-2);transition:color .18s,transform .18s;display:inline-block}
.footer-col a:hover{color:var(--c-primary);transform:translateX(2px)}
.footer-box{padding:20px;border-radius:var(--r-md);background:var(--c-glass);border:1px solid var(--c-line)}
.footer-box h4{font-size:15px;font-weight:600;margin-bottom:10px}
.footer-box p{font-size:14px;color:var(--t-2);line-height:1.8;margin-bottom:16px}
.footer-bottom{border-top:1px solid var(--c-line);padding:16px 0;min-height:48px}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:var(--t-3)}
.footer-bottom a{color:var(--t-3)}
.footer-bottom a:hover{color:var(--c-primary)}

/* ============ 浮动 CTA ============ */
.float-cta{position:fixed;right:28px;bottom:32px;z-index:70;display:flex;flex-direction:column;gap:10px;padding:16px;border-radius:18px;background:var(--c-glass-strong);border:1px solid var(--c-line);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card);opacity:0;visibility:hidden;transform:translateY(14px);transition:opacity .24s ease,transform .24s ease,visibility .24s}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta .fc-tip{font-size:12.5px;color:var(--t-3);letter-spacing:.02em;text-align:center}
.float-cta .btn{height:38px;font-size:14px;width:100%}

/* ============ 响应式 ============ */
@media(max-width:1280px){
  .section{padding:84px 0}
  .float-card{min-width:164px}
  .float-card-a{left:-10px}
}
@media(max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn{display:none}
  .drawer{display:block;position:absolute;left:0;right:0;top:100%;max-height:0;overflow:hidden;background:rgba(4,7,15,.97);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--c-line);transition:max-height .28s ease}
  .drawer.open{max-height:340px}
  .drawer-inner{padding:16px 0 22px;display:flex;flex-direction:column;gap:6px}
  .drawer-inner a{padding:13px 4px;font-size:16px;color:var(--t-2);border-bottom:1px solid var(--c-line)}
  .drawer-inner a.active{color:var(--c-primary)}
  .drawer-inner .btn{margin-top:14px}
  .hero{padding:56px 0 72px}
  .hero-copy,.hero-visual{grid-column:span 12}
  .hero-visual{min-height:auto;margin-top:44px}
  .adv-media,.adv-body,.adv-row.reverse .adv-media,.adv-row.reverse .adv-body{grid-column:span 12;order:0}
  .adv-row{gap:26px;padding:34px 0}
  .adv-index{font-size:42px}
  .demo-devices,.demo-steps{grid-column:span 12}
  .demo-steps{margin-top:44px}
  .proof-band{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .timeline::before{display:none}
  .plan-card,.plan-card.featured{grid-column:span 12}
  .news-main,.news-side{grid-column:span 12}
  .faq-col,.faq-list{grid-column:span 12}
  .footer-brand,.footer-nav,.footer-side{grid-column:span 12}
}
@media(max-width:768px){
  body{font-size:16px}
  .container{width:calc(100% - 32px)}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .topbar-tip{display:none}
  .logo-sub{display:none}
  .quote-card{grid-column:span 12}
  .news-row{grid-template-columns:104px 1fr;gap:14px;padding:14px}
  .cta-band{padding:32px 24px}
  .cta-band-wrap{padding-bottom:56px}
  .float-cta{left:0;right:0;bottom:0;flex-direction:row;align-items:center;justify-content:space-between;gap:14px;border-radius:0;border-left:0;border-right:0;border-bottom:0;padding:10px 16px calc(10px + env(safe-area-inset-bottom));transform:translateY(100%)}
  .float-cta.show{transform:translateY(0)}
  .float-cta .fc-tip{text-align:left;font-size:12.5px;flex:1}
  .float-cta .fc-actions{display:flex;gap:8px}
  .float-cta .btn{width:auto;height:40px}
  .float-cta .btn-secondary{display:none}
  .footer-grid{padding:44px 0 36px}
  .device-mobile{width:132px;right:0}
  .demo-devices{padding-bottom:40px}
}
@media(max-width:560px){
  body{font-size:15.5px}
  .hero-title{font-size:clamp(26px,7.4vw,34px)}
  .section-title{font-size:clamp(22px,6.6vw,28px)}
  .hero-stats{gap:10px}
  .stat{flex:1 1 100%}
  .hero-actions .btn{width:100%}
  .adv-index{font-size:36px}
  .proof-band{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .news-row{grid-template-columns:1fr}
  .news-row-thumb{aspect-ratio:16/9}
  .float-card{position:static;margin-top:14px;width:100%}
  .float-card-b{margin-top:12px}
  .cta-actions .btn{width:100%}
  .footer-nav{grid-template-columns:1fr}
  .plan-price b{font-size:32px}
}
@media(max-width:400px){
  .brand-text b{font-size:15px}
  .faq-q{font-size:15.5px;padding:16px;gap:12px}
  .faq-a-inner{margin-left:12px;padding-left:14px}
}

/* roulang page: article */
:root{
  --c-bg-deep:#04070F;
  --c-bg:#071021;
  --c-bg-soft:#0C1A2E;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.16);
  --c-glass:rgba(255,255,255,.06);
  --c-glass-strong:rgba(255,255,255,.10);
  --c-primary:#12E0B2;
  --c-primary-deep:#08A98A;
  --c-primary-soft:rgba(18,224,178,.14);
  --c-accent:#FF6B2C;
  --c-accent-soft:rgba(255,107,44,.16);
  --c-violet:#7C5CFF;
  --t-1:#EDF4FF;
  --t-2:#A6B6CC;
  --t-3:#6E8099;
  --c-warn:#FFB020;
  --glow-primary:0 0 0 1px rgba(18,224,178,.45), 0 10px 30px rgba(18,224,178,.30);
  --glow-accent:0 0 0 1px rgba(255,107,44,.45), 0 10px 28px rgba(255,107,44,.28);
  --glow-primary-lg:0 0 0 1px rgba(18,224,178,.6), 0 16px 40px rgba(18,224,178,.38);
  --glow-accent-lg:0 0 0 1px rgba(255,107,44,.6), 0 16px 38px rgba(255,107,44,.36);
  --shadow-glass:0 12px 30px rgba(0,0,0,.45);
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --container:1200px;
  --cn-font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--cn-font);
  font-size:16px;
  line-height:1.75;
  color:var(--t-2);
  background:
    radial-gradient(1100px 620px at 82% -8%, rgba(18,224,178,.13), transparent 62%),
    radial-gradient(880px 520px at -6% 12%, rgba(124,92,255,.14), transparent 60%),
    var(--c-bg);
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:#5CF2CE}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--t-1);line-height:1.3;font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:min(var(--container),100% - 48px);margin:0 auto}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.topbar{
  height:36px;
  background:#03060D;
  border-bottom:1px solid var(--c-line);
  font-size:12px;
  letter-spacing:.02em;
}
.topbar-inner{
  height:100%;
  display:flex;
  align-items:center;
  gap:18px;
  justify-content:space-between;
}
.topbar-hint{color:var(--t-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-notice{
  flex:1;
  min-width:0;
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--t-2);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  justify-content:center;
}
.topbar-notice .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--c-primary);
  box-shadow:0 0 10px rgba(18,224,178,.8);
  flex:none;
}
.topbar .btn-xs{flex:none}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60}
.navbar{
  position:relative;
  background:rgba(7,16,33,.72);
  border-bottom:1px solid var(--c-line);
  transition:background .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.site-header.is-stuck .navbar{
  background:rgba(7,16,33,.86);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:0 14px 32px rgba(0,0,0,.48);
}
.nav-inner{
  height:68px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--t-1);flex:none}
.brand:hover{color:var(--t-1)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(18,224,178,.28),rgba(124,92,255,.24));
  border:1px solid rgba(18,224,178,.42);
  box-shadow:0 0 18px rgba(18,224,178,.24);
}
.brand-mark svg{width:19px;height:19px;fill:var(--c-primary)}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text b{font-size:16px;letter-spacing:.01em;color:var(--t-1)}
.brand-text span{font-size:11px;color:var(--t-3);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-links a{
  position:relative;
  padding:10px 12px;
  font-size:15px;
  color:var(--t-2);
  border-radius:var(--r-sm);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:4px;height:2px;
  border-radius:2px;
  background:transparent;
  transition:background .18s ease,box-shadow .18s ease;
}
.nav-links a:hover{color:var(--t-1);background:var(--c-glass)}
.nav-links a.active{color:var(--t-1)}
.nav-links a.active::after{
  background:linear-gradient(90deg,var(--c-primary),var(--c-primary-deep));
  box-shadow:0 0 12px rgba(18,224,178,.7);
}
.nav-cta{margin-left:auto;flex:none}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:42px;height:42px;
  border-radius:var(--r-sm);
  border:1px solid var(--c-line);
  background:var(--c-glass);
  color:var(--t-1);
  place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t-1);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--t-1);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.scroll-progress{
  position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,var(--c-primary),var(--c-violet));
  box-shadow:0 0 12px rgba(18,224,178,.6);
  transition:width .1s linear;
}
.nav-scrim{
  position:fixed;inset:0;background:rgba(3,6,13,.66);
  opacity:0;visibility:hidden;transition:.2s ease;z-index:55;
  backdrop-filter:blur(2px);
}
body.nav-open .nav-scrim{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;
  font-size:15px;font-weight:600;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0);filter:brightness(.94)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-xs{height:28px;padding:0 12px;font-size:12px;border-radius:999px}
.btn-primary{background:linear-gradient(135deg,#FF7F45,var(--c-accent));color:#fff;box-shadow:var(--glow-accent)}
.btn-primary:hover{color:#fff;box-shadow:var(--glow-accent-lg)}
.btn-glass{
  background:var(--c-glass);
  border-color:var(--c-line-strong);
  color:var(--c-primary);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.btn-glass:hover{color:#7BF3DA;border-color:rgba(18,224,178,.5);background:var(--c-glass-strong)}
.btn-ghost{background:transparent;color:var(--t-2);border-color:transparent;box-shadow:none}
.btn-ghost:hover{color:var(--t-1);background:var(--c-glass)}
.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;gap:6px;
  height:28px;padding:0 12px;
  border-radius:999px;
  font-size:12px;letter-spacing:.02em;font-weight:600;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  border:1px solid rgba(18,224,178,.32);
}
.badge-violet{background:rgba(124,92,255,.16);color:#B7A5FF;border-color:rgba(124,92,255,.34)}
.badge-accent{background:var(--c-accent-soft);color:#FF9A66;border-color:rgba(255,107,44,.36)}
.badge-line{background:transparent;color:var(--t-2);border-color:var(--c-line-strong)}

/* ---------- 文章页头 ---------- */
.article-hero{
  position:relative;
  padding:40px 0 44px;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.article-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(4,7,15,.82),rgba(7,16,33,.95)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.55;
  z-index:0;
}
.article-hero .container{position:relative;z-index:1}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--t-3);margin-bottom:18px;
}
.crumb a{color:var(--t-3)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:rgba(255,255,255,.22)}
.crumb .now{color:var(--t-2);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.28;
  max-width:900px;
  margin:14px 0 18px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--t-3);
}
.meta-row .sep{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.22)}
.meta-row b{color:var(--t-2);font-weight:500}

/* ---------- 布局 ---------- */
.article-wrap{padding:48px 0 72px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:36px;
  align-items:start;
}
.reader-card{
  background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,.01));
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:36px 38px 40px;
}
.prose{
  max-width:800px;
  font-size:17px;
  line-height:1.9;
  color:#CBD8E8;
}
.prose > * + *{margin-top:1.2em}
.prose h2{
  position:relative;
  font-size:clamp(22px,2.4vw,28px);
  padding-left:16px;
  margin-top:2em;
  margin-bottom:.7em;
}
.prose h2::before{
  content:"";
  position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-primary-deep));
  box-shadow:0 0 14px rgba(18,224,178,.45);
}
.prose h3{
  font-size:20px;
  margin-top:1.7em;
  margin-bottom:.6em;
  display:flex;align-items:center;gap:10px;
}
.prose h3::before{
  content:"";width:9px;height:9px;border-radius:3px;
  background:var(--c-violet);
  box-shadow:0 0 12px rgba(124,92,255,.6);
  flex:none;
}
.prose p{color:#C3D2E4}
.prose strong{color:var(--t-1)}
.prose a{text-decoration:underline;text-decoration-color:rgba(18,224,178,.45);text-underline-offset:4px}
.prose ul,.prose ol{padding-left:22px;color:#C3D2E4}
.prose ul li,.prose ol li{margin:.5em 0;padding-left:4px}
.prose ul li::marker{color:var(--c-primary)}
.prose ol{counter-reset:li}
.prose ol li{list-style:decimal}
.prose blockquote{
  margin-left:0;margin-right:0;
  padding:16px 22px;
  border-left:3px solid var(--c-primary);
  background:rgba(255,255,255,.03);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--t-2);
}
.prose img{
  width:100%;
  height:auto;
  border-radius:12px;
  margin:1.4em 0 .6em;
  border:1px solid var(--c-line);
}
.prose figure{margin:1.4em 0}
.prose figcaption,.prose .img-cap{
  text-align:center;
  font-size:13px;
  color:var(--t-3);
  margin-top:8px;
}
.prose table{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  overflow:hidden;
}
.prose th,.prose td{
  padding:12px 14px;
  text-align:left;
  border-bottom:1px solid var(--c-line);
}
.prose th{background:rgba(255,255,255,.05);color:var(--t-1);font-weight:600}
.prose tbody tr:nth-child(even){background:rgba(255,255,255,.025)}
.prose hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-glass);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  padding:22px 22px 18px;
  position:relative;
  overflow:hidden;
}
.side-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:700;color:var(--t-1);
  margin-bottom:14px;
}
.side-title i{
  width:6px;height:16px;border-radius:3px;flex:none;
  background:linear-gradient(180deg,var(--c-primary),var(--c-primary-deep));
}
#tocList li{margin:2px 0}
#tocList a{
  display:block;
  padding:8px 10px;
  font-size:14px;
  color:var(--t-2);
  border-radius:var(--r-xs);
  border-left:2px solid transparent;
  line-height:1.6;
}
#tocList a:hover{color:var(--t-1);background:rgba(255,255,255,.05)}
#tocList a.active{
  color:var(--c-primary);
  border-left-color:var(--c-primary);
  background:var(--c-primary-soft);
}
.toc-empty-tip{font-size:13px;color:var(--t-3);padding:4px 2px}
.side-empty{display:none}
.toc-empty .side-empty{display:block}
.toc-empty #tocList{display:none}

.hot-list li{border-bottom:1px solid var(--c-line)}
.hot-list li:last-child{border-bottom:0}
.hot-list a{
  display:flex;align-items:center;gap:10px;
  padding:11px 2px;
  font-size:14px;
  color:var(--t-2);
}
.hot-list a:hover{color:var(--t-1)}
.hot-list a .idx{
  flex:none;width:20px;height:20px;border-radius:6px;
  display:grid;place-items:center;
  font-size:11px;font-weight:700;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.hot-list a:nth-child(1) .idx,.hot-list li:nth-child(1) .idx{background:var(--c-accent-soft);color:#FF9A66}
.hot-list .t{
  flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.hot-list .d{font-size:12px;color:var(--t-3);flex:none}
.side-cta{margin-top:16px}

/* ---------- 文末 ---------- */
.after-article{margin-top:32px;display:flex;flex-direction:column;gap:26px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-row .label{font-size:13px;color:var(--t-3)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:999px;font-size:13px;
  color:var(--t-2);
  border:1px solid var(--c-line-strong);
  transition:.18s ease;
}
.tag:hover{color:var(--c-primary);border-color:rgba(18,224,178,.5);background:var(--c-primary-soft)}
.pager{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.pager-card{
  display:block;
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:20px 22px;
  transition:.2s ease;
}
.pager-card:hover{
  border-color:rgba(18,224,178,.35);
  transform:translateY(-2px);
  box-shadow:var(--shadow-glass);
}
.pager-card span{display:block;font-size:12px;color:var(--t-3);margin-bottom:6px;letter-spacing:.02em}
.pager-card strong{display:block;font-size:16px;color:var(--t-1);font-weight:600}
.pager-card:hover strong{color:var(--c-primary)}
.pager-card .arrow{float:right;color:var(--c-primary);transition:transform .2s ease}
.pager-card:hover .arrow{transform:translateX(3px)}

/* ---------- 相关推荐 ---------- */
.section{padding:56px 0}
.section-head{margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.6vw,30px)}
.section-head p{font-size:14px;color:var(--t-3);margin-top:8px}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:.22s ease;
  height:100%;
}
.rel-card:hover{
  border-color:rgba(18,224,178,.35);
  transform:translateY(-3px);
  box-shadow:var(--shadow-glass);
}
.thumb{
  position:relative;
  aspect-ratio:16/9;
  background:linear-gradient(140deg,#0B1B2F,#061020 62%,#0A2338);
  overflow:hidden;
}
.thumb.ratio-4-3{aspect-ratio:4/3}
.thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(4,7,15,.72));
  pointer-events:none;
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.rel-card:hover .thumb img{transform:scale(1.04)}
.thumb .ph{
  position:absolute;inset:0;
  display:grid;place-items:center;
  color:var(--t-3);font-size:13px;
}
.thumb .ph::before{
  content:"";position:absolute;inset:10px;
  border:1px dashed rgba(18,224,178,.34);
  border-radius:var(--r-sm);
  box-shadow:inset 0 0 22px rgba(18,224,178,.12);
}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;line-height:1.55}
.rel-body p{font-size:14px;line-height:1.75;color:var(--t-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--t-3);margin-top:auto}
.rel-meta .sep{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.2)}

/* ---------- 空态 ---------- */
.empty-box{
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-glass);
  padding:56px 32px;
  text-align:center;
}
.empty-box .icon{
  width:54px;height:54px;margin:0 auto 18px;
  border-radius:14px;

  display:grid;place-items:center;
  border:1px solid rgba(255,176,32,.42);
  background:rgba(255,176,32,.12);
  color:var(--c-warn);
  font-size:24px;
}
.empty-box h2{font-size:22px;margin-bottom:10px}
.empty-box p{color:var(--t-3);font-size:15px;max-width:520px;margin:0 auto 22px}
.empty-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- CTA 带 ---------- */
.cta-band{padding:0 0 72px}
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  background:linear-gradient(120deg,rgba(18,224,178,.14),rgba(124,92,255,.12) 52%,rgba(255,107,44,.12));
  padding:38px 40px;
  display:flex;
  align-items:center;
  gap:28px;
  justify-content:space-between;
  flex-wrap:wrap;
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--shadow-glass);
}
.cta-panel::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
}
.cta-panel h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:8px}
.cta-panel p{font-size:14px;color:var(--t-2);max-width:640px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:24px;bottom:24px;
  z-index:70;
  display:flex;
  align-items:center;
  gap:14px;
  padding:12px 14px 12px 18px;
  border-radius:999px;
  background:var(--c-glass-strong);
  border:1px solid var(--c-line-strong);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  box-shadow:var(--shadow-glass);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:.26s ease;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta-text{font-size:13px;color:var(--t-2);white-space:nowrap}
.float-cta-actions{display:flex;gap:8px}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--c-line);
  background:linear-gradient(180deg,rgba(7,16,33,.4),var(--c-bg-deep));
  padding-top:56px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,5fr) minmax(0,3fr);
  gap:36px;
  padding-bottom:40px;
}
.footer-brand p{font-size:14px;color:var(--t-3);margin:16px 0 18px;line-height:1.85}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--t-3)}
.footer-contact b{color:var(--t-2);font-weight:600}
.footer-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.footer-col h4,.footer-box h4{font-size:15px;color:var(--t-1);margin-bottom:14px}
.footer-col ul li{margin:9px 0}
.footer-col ul a{font-size:14px;color:var(--t-3)}
.footer-col ul a:hover{color:var(--c-primary)}
.footer-box{
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:20px;
}
.footer-box p{font-size:13px;color:var(--t-3);margin-bottom:16px;line-height:1.8}
.footer-bottom{
  border-top:1px solid var(--c-line);
  min-height:48px;
  display:flex;align-items:center;
  font-size:13px;color:var(--t-3);
  padding:10px 0;
}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .article-layout{gap:28px}
}
@media (max-width:1024px){
  .container{width:min(var(--container),100% - 36px)}
  .nav-toggle{display:grid}
  .nav-cta{display:none}
  .nav-links{
    position:fixed;
    top:0;right:0;
    height:100vh;
    width:min(320px,82vw);
    margin:0;
    padding:88px 20px 24px;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    background:rgba(9,20,38,.96);
    border-left:1px solid var(--c-line);
    backdrop-filter:blur(20px) saturate(140%);
    -webkit-backdrop-filter:blur(20px) saturate(140%);
    transform:translateX(102%);
    transition:transform .26s ease;
    z-index:58;
    overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-links a{padding:14px 12px;font-size:16px;border-bottom:1px solid var(--c-line)}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--c-primary);background:var(--c-primary-soft)}
  .topbar-notice{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static}
  .reader-card{padding:28px 26px 30px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px}
  .footer-side{grid-column:1 / -1}
  .float-cta{right:16px;bottom:16px}
}
@media (max-width:768px){
  .site-header{position:sticky}
  .nav-inner{height:62px}
  .article-hero{padding:26px 0 32px}
  .article-wrap{padding:32px 0 48px}
  .section{padding:44px 0}
  .reader-card{padding:22px 18px 24px;border-radius:var(--r-md)}
  .prose{font-size:16px}
  .pager{grid-template-columns:minmax(0,1fr)}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .float-cta{
    left:0;right:0;bottom:0;
    border-radius:0;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    transform:translateY(100%);
    justify-content:space-between;
    border-left:0;border-right:0;border-bottom:0;
  }
  .float-cta.is-show{transform:translateY(0)}
  .float-cta-text{font-size:12px}
  .cta-panel{padding:28px 22px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .topbar-hint{font-size:11px}
}
@media (max-width:560px){
  .container{width:min(var(--container),100% - 28px)}
  body{font-size:15px}
  .brand-text b{font-size:15px}
  .btn{height:42px;padding:0 16px;font-size:14px}
  .btn-sm{height:38px;font-size:13px}
  .article-hero h1{font-size:24px}
  .crumb{font-size:12px}
  .meta-row{font-size:12px}
  .side-card{padding:18px 16px 16px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .empty-actions{flex-direction:column}
  .empty-actions .btn{width:100%}
  .footer-nav{grid-template-columns:minmax(0,1fr)}
}

/* roulang page: category1 */
:root{
  --c-bg-deep:#04070F;
  --c-bg:#071021;
  --c-bg-soft:#0C1A2E;
  --c-line:rgba(255,255,255,.08);
  --c-glass:rgba(255,255,255,.06);
  --c-glass-strong:rgba(255,255,255,.10);
  --c-primary:#12E0B2;
  --c-primary-deep:#08A98A;
  --c-primary-soft:rgba(18,224,178,.14);
  --c-accent:#FF6B2C;
  --c-accent-soft:rgba(255,107,44,.16);
  --c-violet:#7C5CFF;
  --t-1:#EDF4FF;
  --t-2:#A6B6CC;
  --t-3:#6E8099;
  --c-warn:#FFB020;
  --glow-primary:0 0 0 1px rgba(18,224,178,.45),0 10px 30px rgba(18,224,178,.30);
  --glow-accent:0 0 0 1px rgba(255,107,44,.45),0 10px 28px rgba(255,107,44,.28);
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --shadow-card:0 12px 30px rgba(0,0,0,.45);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--t-1);
  background:var(--c-bg);
  background-image:radial-gradient(1200px 600px at 85% -10%,rgba(18,224,178,.10),transparent 60%),
                   radial-gradient(900px 500px at 5% 8%,rgba(124,92,255,.10),transparent 62%);
  background-repeat:no-repeat;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
svg{display:block}
::selection{background:rgba(18,224,178,.28)}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:var(--r-xs)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1400px){.container{max-width:1320px}}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-bg-deep);border-bottom:1px solid var(--c-line);font-size:13px;letter-spacing:.02em;height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;gap:18px;justify-content:space-between;width:100%}
.topbar-tip{color:var(--t-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-tip b{color:var(--t-2);font-weight:500}
.topbar-notice{flex:1;min-width:0;color:var(--t-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:center}
.topbar-notice span{display:inline-block;padding-left:14px;position:relative}
.topbar-notice span::before{content:"";position:absolute;left:0;top:50%;width:6px;height:6px;margin-top:-3px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 8px rgba(18,224,178,.8)}
.topbar-actions{display:flex;align-items:center;gap:10px}
.pill-link{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;border:1px solid var(--c-line);background:var(--c-glass);color:var(--t-2);font-size:12px;letter-spacing:.02em;transition:.18s}
.pill-link:hover{color:var(--t-1);border-color:rgba(18,224,178,.45);transform:translateY(-1px)}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(7,16,33,.86);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);border-bottom:1px solid var(--c-line);transition:box-shadow .25s,background .25s}
.site-header.scrolled{background:rgba(4,7,15,.92);box-shadow:0 14px 34px rgba(0,0,0,.5)}
.nav-inner{display:flex;align-items:center;gap:22px;height:70px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(140deg,rgba(18,224,178,.24),rgba(124,92,255,.20));border:1px solid rgba(18,224,178,.35);box-shadow:inset 0 1px 0 rgba(255,255,255,.10)}
.brand-mark svg{width:21px;height:21px;fill:var(--c-primary)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:17px;font-weight:700;letter-spacing:.01em}
.brand-text span{font-size:11.5px;color:var(--t-3);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:var(--r-sm);font-size:15px;color:var(--t-2);transition:.18s}
.nav-links a::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--c-primary),rgba(18,224,178,0));opacity:0;transition:.2s}
.nav-links a:hover{color:var(--t-1);background:var(--c-glass)}
.nav-links a.active{color:var(--t-1);background:var(--c-primary-soft)}
.nav-links a.active::after{opacity:1;box-shadow:0 0 12px rgba(18,224,178,.7)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:var(--c-glass);align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--t-1);border-radius:2px;position:relative;transition:.2s}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--t-1);border-radius:2px;transition:.2s}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}
.progress-bar{height:2px;background:transparent}
.progress-bar span{display:block;height:2px;width:100%;transform-origin:0 50%;transform:scaleX(0);background:linear-gradient(90deg,var(--c-primary),var(--c-violet))}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-sm);font-size:15px;font-weight:600;letter-spacing:.01em;border:1px solid transparent;transition:transform .18s,box-shadow .18s,background .18s,color .18s,border-color .18s;white-space:nowrap}
.btn-accent{background:linear-gradient(135deg,#FF7A3D,var(--c-accent));color:#fff;box-shadow:var(--glow-accent)}
.btn-accent:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,107,44,.55),0 16px 36px rgba(255,107,44,.38)}
.btn-accent:active{transform:translateY(0);filter:brightness(.94)}
.btn-glass{background:var(--c-glass);border-color:var(--c-line);color:var(--t-1);box-shadow:inset 0 1px 0 rgba(255,255,255,.10)}
.btn-glass:hover{transform:translateY(-1px);border-color:rgba(18,224,178,.5);color:var(--c-primary);box-shadow:var(--glow-primary)}
.btn-primary{background:linear-gradient(135deg,rgba(18,224,178,.95),var(--c-primary-deep));color:#04150F;box-shadow:var(--glow-primary)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(18,224,178,.6),0 16px 36px rgba(18,224,178,.4)}
.btn-ghost{color:var(--t-2);padding:0 6px;height:40px;border-bottom:1px solid rgba(166,182,204,.35);border-radius:0}
.btn-ghost:hover{color:var(--c-primary);border-color:var(--c-primary)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-lg{height:50px;padding:0 28px;font-size:16px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ============ 徽章 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12.5px;letter-spacing:.02em}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary);border:1px solid rgba(18,224,178,.28)}
.badge-accent{background:var(--c-accent-soft);color:#FF9A66;border:1px solid rgba(255,107,44,.34)}
.badge-line{border:1px solid var(--c-line);color:var(--t-3);background:transparent}
.badge-violet{background:rgba(124,92,255,.16);color:#B7A6FF;border:1px solid rgba(124,92,255,.30)}

/* ============ 页头带 ============ */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--c-line);min-height:262px;display:flex;align-items:center}
.page-hero .hero-bg{position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(4,7,15,.94) 0%,rgba(4,7,15,.78) 46%,rgba(4,7,15,.55) 100%),url("/assets/images/backpic/back-1.webp");background-size:cover;background-position:center;transform:scale(1.02)}
.page-hero .hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,7,15,.35),rgba(7,16,33,.95))}
.page-hero .container{position:relative;z-index:2;padding-top:38px;padding-bottom:38px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t-3);margin-bottom:16px;letter-spacing:.02em}
.crumb a:hover{color:var(--c-primary)}
.crumb span{color:var(--t-3)}
.page-hero h1{font-size:clamp(28px,3.6vw,44px);line-height:1.28;font-weight:700;letter-spacing:.01em;max-width:20em}
.page-hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-sub{margin-top:14px;color:var(--t-2);font-size:16px;max-width:60ch}
.hero-meta{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}
.glass-strip{display:flex;flex-wrap:wrap;gap:10px 26px;padding:14px 20px;border-radius:var(--r-md);background:var(--c-glass);border:1px solid var(--c-line);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);font-size:13.5px;color:var(--t-2)}
.glass-strip b{color:var(--t-1);font-weight:600;font-variant-numeric:tabular-nums}

/* ============ 区块 ============ */
section{position:relative}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;color:var(--c-primary);text-transform:none;margin-bottom:14px}
.section-head .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-primary);box-shadow:0 0 10px rgba(18,224,178,.8)}
.section-head h2{font-size:clamp(26px,3.2vw,40px);line-height:1.3;font-weight:700}
.section-head p{margin-top:16px;color:var(--t-2);font-size:16.5px;line-height:1.9}

/* ============ 引言三段 ============ */
.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.intro-card{position:relative;padding:26px 24px;border-radius:var(--r-md);background:var(--c-bg-soft);border:1px solid var(--c-line);transition:.22s}
.intro-card::before{content:"";position:absolute;left:24px;top:0;width:44px;height:2px;background:linear-gradient(90deg,var(--c-primary),transparent)}
.intro-card:hover{border-color:rgba(18,224,178,.35);transform:translateY(-2px)}
.intro-card .idx{font-size:13px;letter-spacing:.16em;color:var(--c-primary);font-variant-numeric:tabular-nums}
.intro-card h3{margin-top:10px;font-size:19px;font-weight:600;line-height:1.5}
.intro-card p{margin-top:10px;color:var(--t-2);font-size:15.5px}

/* ============ 数据带 ============ */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:28px;border-radius:var(--r-lg);background:var(--c-glass);border:1px solid var(--c-line);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%)}
.stat{position:relative;padding-left:18px}
.stat::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;border-radius:2px;background:var(--c-primary);box-shadow:0 0 10px rgba(18,224,178,.7)}
.stat:nth-child(even)::before{background:var(--c-accent);box-shadow:0 0 10px rgba(255,107,44,.65)}
.stat b{display:block;font-size:30px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.01em;line-height:1.2}
.stat span{display:block;margin-top:6px;color:var(--t-3);font-size:13.5px;letter-spacing:.02em}

/* ============ 纵向大列表流 ============ */
.feed{border-top:1px solid var(--c-line)}
.feed-item{position:relative;display:grid;grid-template-columns:280px 1fr;gap:28px;padding:30px 0 30px 22px;border-bottom:1px solid var(--c-line);transition:.22s}
.feed-item::before{content:"";position:absolute;left:0;top:30px;bottom:30px;width:2px;border-radius:2px;background:transparent;transition:.22s}
.feed-item:hover{transform:translateY(-2px)}
.feed-item:hover::before{background:linear-gradient(180deg,var(--c-primary),rgba(18,224,178,0));box-shadow:0 0 14px rgba(18,224,178,.5)}
.thumb{position:relative;border-radius:var(--r-md);overflow:hidden;aspect-ratio:4/3;background:linear-gradient(140deg,#0D1B2F,#050A14);border:1px solid var(--c-line);box-shadow:inset 0 0 0 1px rgba(18,224,178,.12)}
.thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(4,7,15,.42));pointer-events:none}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.feed-item:hover .thumb img{transform:scale(1.04)}
.feed-body{display:flex;flex-direction:column;gap:10px;min-width:0}
.feed-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.feed-body h3{font-size:21px;line-height:1.45;font-weight:600}
.feed-body h3 a:hover{color:var(--c-primary)}
.feed-body p{color:var(--t-2);font-size:15.5px;line-height:1.9;max-width:62ch}
.point-row{display:flex;flex-wrap:wrap;gap:8px}
.point{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--t-2);background:rgba(255,255,255,.04);border:1px solid var(--c-line);border-radius:999px;padding:4px 12px}
.point::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--c-primary)}
.feed-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-3);letter-spacing:.02em}
.feed-meta i{font-style:normal;color:var(--t-3);opacity:.55}
.feed-more{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-primary);margin-top:4px}
.feed-more span{transition:transform .2s}
.feed-item:hover .feed-more span{transform:translateX(3px)}

/* ============ 图文说明区 ============ */
.split{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.split.rev{grid-template-columns:5fr 7fr}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);box-shadow:0 0 0 1px rgba(18,224,178,.16),0 22px 46px rgba(0,0,0,.5);aspect-ratio:16/9;background:linear-gradient(140deg,#0D1B2F,#050A14)}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-text h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:700}
.split-text p{margin-top:16px;color:var(--t-2);font-size:16px;max-width:40ch}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--t-2)}
.check-list li::before{content:"";flex:0 0 auto;width:18px;height:18px;margin-top:6px;border-radius:6px;background:var(--c-primary-soft);border:1px solid rgba(18,224,178,.4);box-shadow:inset 0 0 6px rgba(18,224,178,.35)}
.check-list li b{color:var(--t-1);font-weight:600}

/* ============ CTA 带 ============ */
.cta-band{padding:0 0 96px}
.cta-panel{position:relative;overflow:hidden;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;padding:42px 44px;border-radius:var(--r-lg);background:var(--c-glass);border:1px solid var(--c-line);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-card);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%)}
.cta-panel::after{content:"";position:absolute;right:-60px;top:-80px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(18,224,178,.22),transparent 62%)}
.cta-panel h2{font-size:clamp(24px,2.8vw,34px);line-height:1.32;font-weight:700;position:relative;z-index:2}
.cta-panel p{margin-top:14px;color:var(--t-2);font-size:15.5px;max-width:44ch;position:relative;z-index:2}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:flex-start;position:relative;z-index:2}
.cta-actions .badge{margin-bottom:4px}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:3fr 9fr;gap:44px;align-items:start}
.faq-side h2{font-size:clamp(24px,2.6vw,32px);line-height:1.34;font-weight:700}
.faq-side p{margin-top:14px;color:var(--t-2);font-size:15.5px}
.faq-list{display:grid;gap:12px}
.faq-item{border-radius:var(--r-md);background:var(--c-glass);border:1px solid var(--c-line);overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item:hover{border-color:rgba(18,224,178,.28)}
.faq-item.open{border-color:rgba(18,224,178,.42);box-shadow:0 0 0 1px rgba(18,224,178,.18)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px;text-align:left;font-size:16.5px;font-weight:600;color:var(--t-1)}
.faq-q .mark{position:relative;flex:0 0 auto;width:20px;height:20px;border-radius:6px;border:1px solid rgba(18,224,178,.4);background:var(--c-primary-soft)}
.faq-q .mark::before,.faq-q .mark::after{content:"";position:absolute;left:50%;top:50%;width:10px;height:2px;border-radius:2px;background:var(--c-primary);transform:translate(-50%,-50%);transition:transform .2s}
.faq-q .mark::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-item.open .faq-q .mark::after{transform:translate(-50%,-50%) rotate(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a-inner{padding:0 20px 22px 22px;border-left:2px solid var(--c-primary);margin-left:20px;color:var(--t-2);font-size:15.5px;line-height:1.9;animation:fadeIn .24s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ============ 浮动 CTA ============ */
.float-cta{position:fixed;right:26px;bottom:26px;z-index:90;display:flex;flex-direction:column;gap:10px;padding:14px;border-radius:var(--r-lg);background:var(--c-glass-strong);border:1px solid var(--c-line);box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 18px 42px rgba(0,0,0,.55);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);opacity:0;visibility:hidden;transform:translateY(14px);transition:.28s}
.float-cta.show{opacity:1;visibility:visible;transform:none}
.float-cta .tip{font-size:12.5px;color:var(--t-3);letter-spacing:.02em;padding-left:2px}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-bg-deep);border-top:1px solid var(--c-line);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:4fr 5fr 3fr;gap:44px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand>p{color:var(--t-2);font-size:15px;max-width:38ch}
.footer-contact{margin-top:20px;display:grid;gap:8px;font-size:13.5px;color:var(--t-3)}
.footer-contact b{color:var(--t-2);font-weight:500}
.footer-nav{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.footer-col h4,.footer-box h4{font-size:14px;font-weight:600;color:var(--t-1);letter-spacing:.04em;margin-bottom:16px}
.footer-col ul{display:grid;gap:12px}
.footer-col a{font-size:14.5px;color:var(--t-2);transition:.18s}
.footer-col a:hover{color:var(--c-primary);transform:translateX(2px);display:inline-block}
.footer-box{padding:22px;border-radius:var(--r-md);background:var(--c-glass);border:1px solid var(--c-line);box-shadow:inset 0 1px 0 rgba(255,255,255,.10)}
.footer-box p{color:var(--t-2);font-size:14px;margin-bottom:16px}
.footer-bottom{margin-top:56px;border-top:1px solid var(--c-line);height:48px;display:flex;align-items:center;font-size:13px;color:var(--t-3)}

/* ============ 响应式 ============ */
@media(max-width:1280px){
  .feed-item{grid-template-columns:240px 1fr;gap:24px}
}
@media(max-width:1024px){
  .nav-links{position:fixed;top:106px;left:16px;right:16px;flex-direction:column;align-items:stretch;gap:6px;padding:14px;border-radius:var(--r-lg);background:rgba(6,14,28,.96);border:1px solid var(--c-line);box-shadow:0 24px 60px rgba(0,0,0,.6);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);transform:translateY(-10px);opacity:0;visibility:hidden;transition:.22s;margin-left:0}
  body.nav-open .nav-links{transform:none;opacity:1;visibility:visible}
  .nav-links a{height:46px;font-size:16px;justify-content:flex-start;padding:0 16px}
  .nav-links a::after{left:16px;right:auto;width:38px;bottom:6px}
  .nav-toggle{display:flex}
  .nav-right .btn{height:40px;padding:0 16px;font-size:14px}
  .section{padding:72px 0}
  .intro-grid{grid-template-columns:1fr;gap:16px}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:22px}
  .split,.split.rev{grid-template-columns:1fr;gap:28px}
  .faq-wrap{grid-template-columns:1fr;gap:26px}
  .cta-panel{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-side{grid-column:1 / -1}
}
@media(max-width:768px){
  .topbar{height:auto;padding:8px 0}
  .topbar-notice{display:none}
  .topbar-inner{justify-content:space-between;gap:10px}
  .topbar-tip{font-size:12px}
  .nav-inner{height:62px;gap:12px}
  .brand-text b{font-size:16px}
  .nav-right .btn{display:none}
  .nav-links{top:98px}
  .page-hero{min-height:220px}
  .section{padding:56px 0}
  .section-sm{padding:44px 0}
  .section-head{margin-bottom:30px}
  .feed-item{grid-template-columns:1fr;gap:16px;padding:24px 0 24px 16px}
  .feed-item .thumb{aspect-ratio:16/9}
  .stat-band{grid-template-columns:1fr 1fr;padding:22px;gap:18px}
  .stat b{font-size:24px}
  .cta-band{padding:0 0 64px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-nav{grid-template-columns:1fr 1fr}
  .float-cta{left:0;right:0;bottom:0;flex-direction:row;align-items:center;justify-content:space-between;gap:14px;border-radius:0;padding:10px 16px calc(10px + env(safe-area-inset-bottom));transform:translateY(100%)}
  .float-cta.show{transform:none}
  .float-cta .tip{display:none}
  .float-cta .btn{height:44px;padding:0 20px}
  .float-cta .btn-glass{display:none}
}
@media(max-width:560px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .page-hero h1{font-size:26px}
  .feed-body h3{font-size:18.5px}
  .btn{width:100%}
  .btn-ghost{width:auto}
  .cta-actions{width:100%}
  .faq-q{font-size:15.5px;padding:16px}
  .footer-nav{grid-template-columns:1fr}
  .brand-mark{width:34px;height:34px}
}
@media(max-width:400px){
  .brand-text span{display:none}
  .stat-band{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root{
  --c-bg-deep:#04070F;
  --c-bg:#071021;
  --c-bg-soft:#0C1A2E;
  --c-line:rgba(255,255,255,.08);
  --c-glass:rgba(255,255,255,.06);
  --c-glass-strong:rgba(255,255,255,.10);
  --c-primary:#12E0B2;
  --c-primary-deep:#08A98A;
  --c-primary-soft:rgba(18,224,178,.14);
  --c-accent:#FF6B2C;
  --c-accent-soft:rgba(255,107,44,.16);
  --c-violet:#7C5CFF;
  --t-1:#EDF4FF;
  --t-2:#A6B6CC;
  --t-3:#6E8099;
  --c-warn:#FFB020;
  --glow-primary:0 0 0 1px rgba(18,224,178,.45),0 10px 30px rgba(18,224,178,.30);
  --glow-accent:0 0 0 1px rgba(255,107,44,.45),0 10px 28px rgba(255,107,44,.28);
  --r-xs:6px;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --shadow-glass:0 12px 30px rgba(0,0,0,.45);
  --container:1200px;
  --sp:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--c-bg);
  color:var(--t-1);
  font-size:16px;
  line-height:1.9;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(1100px 560px at 12% -8%,rgba(18,224,178,.10),transparent 62%),
    radial-gradient(900px 520px at 100% 4%,rgba(124,92,255,.10),transparent 60%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:var(--r-xs)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--c-bg-deep);
  border-bottom:1px solid var(--c-line);
  font-size:12.5px;
  letter-spacing:.02em;
  position:relative;
  z-index:60;
}
.topbar-inner{
  height:36px;
  display:flex;
  align-items:center;
  gap:18px;
  white-space:nowrap;
}
.topbar-note{color:var(--t-3);flex:0 0 auto}
.topbar-ticker{
  flex:1 1 auto;
  min-width:0;
  display:flex;
  align-items:center;
  gap:8px;
  overflow:hidden;
  color:var(--t-2);
}
.ticker-label{
  flex:0 0 auto;
  padding:1px 8px;
  border-radius:999px;
  border:1px solid var(--c-primary-soft);
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:11.5px;
}
.ticker-text{
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.topbar-cta{
  flex:0 0 auto;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:var(--c-glass);
  color:var(--t-1);
  font-size:12px;
  transition:border-color .2s,color .2s,box-shadow .2s;
}
.topbar-cta:hover{border-color:rgba(18,224,178,.5);color:var(--c-primary);box-shadow:0 0 0 1px rgba(18,224,178,.24)}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:50}
.navbar{
  position:relative;
  background:rgba(7,16,33,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--c-line);
  transition:background .25s,box-shadow .25s;
}
.site-header.scrolled .navbar{
  background:rgba(7,16,33,.88);
  box-shadow:0 14px 34px rgba(0,0,0,.5);
}
.navbar-inner{
  min-height:68px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(140deg,rgba(18,224,178,.22),rgba(124,92,255,.18));
  border:1px solid rgba(18,224,178,.35);
  box-shadow:0 0 0 1px rgba(18,224,178,.12),0 8px 20px rgba(18,224,178,.16);
}
.brand-mark svg{width:22px;height:22px;fill:var(--c-primary)}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text b{font-size:16.5px;font-weight:700;letter-spacing:.01em}
.brand-text span{font-size:12px;color:var(--t-3);letter-spacing:.06em}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}
.nav-links a{
  position:relative;
  padding:8px 14px;
  border-radius:var(--r-sm);
  font-size:15px;
  color:var(--t-2);
  transition:color .2s,background .2s;
}
.nav-links a:hover{color:var(--t-1);background:var(--c-glass)}
.nav-links a.active{color:var(--c-primary)}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:1px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--c-primary),rgba(18,224,178,.2));
  box-shadow:0 0 12px rgba(18,224,178,.6);
}
.navbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--r-sm);
  border:1px solid var(--c-line);
  background:var(--c-glass);
  place-items:center;
}
.nav-toggle span{
  display:block;width:18px;height:2px;margin:3px auto;
  border-radius:2px;background:var(--t-1);transition:transform .2s,opacity .2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.scroll-progress{height:2px;background:rgba(255,255,255,.05)}
.scroll-progress span{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--c-primary),var(--c-violet));
  box-shadow:0 0 10px rgba(18,224,178,.6);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .18s,box-shadow .18s,background .18s,border-color .18s,color .18s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0);filter:brightness(.94)}
.btn-accent{background:linear-gradient(135deg,#FF7A3C,#F0571A);color:#fff;box-shadow:var(--glow-accent)}
.btn-accent:hover{box-shadow:0 0 0 1px rgba(255,107,44,.6),0 14px 34px rgba(255,107,44,.38)}
.btn-primary{background:linear-gradient(135deg,#18F0BE,#06A184);color:#04140F;box-shadow:var(--glow-primary)}
.btn-primary:hover{box-shadow:0 0 0 1px rgba(18,224,178,.6),0 14px 34px rgba(18,224,178,.38)}
.btn-glass{
  background:var(--c-glass);
  border-color:var(--c-line);
  color:var(--c-primary);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.btn-glass:hover{border-color:rgba(18,224,178,.5);background:var(--c-glass-strong)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-lg{height:50px;padding:0 28px;font-size:16px}
.btn-block{width:100%}
.btn-ghost{height:auto;padding:0;color:var(--t-2);border-bottom:1px solid rgba(255,255,255,.16);border-radius:0}
.btn-ghost:hover{color:var(--c-primary);border-color:rgba(18,224,178,.6)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  letter-spacing:.02em;
  line-height:1.6;
}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary);border:1px solid rgba(18,224,178,.28)}
.badge-accent{background:var(--c-accent-soft);color:#FFB58C;border:1px solid rgba(255,107,44,.32)}
.badge-line{border:1px solid var(--c-line);color:var(--t-2);background:transparent}
.badge-violet{background:rgba(124,92,255,.16);color:#BCA9FF;border:1px solid rgba(124,92,255,.3)}
.badge-time{border:1px solid var(--c-line);color:var(--t-3);background:rgba(255,255,255,.03)}

/* ---------- 玻璃面板 / 卡片 ---------- */
.glass{
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
}
.card{
  position:relative;
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 10px 26px rgba(0,0,0,.36);
  padding:26px;
  transition:transform .22s,border-color .22s,box-shadow .22s;
  overflow:hidden;
}
.card:hover{transform:translateY(-2px);border-color:rgba(18,224,178,.3);box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 16px 34px rgba(0,0,0,.46)}
.card-top-line::before{
  content:"";
  position:absolute;top:0;left:16px;right:16px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,224,178,.6),transparent);
}

/* ---------- 板块通用 ---------- */
main{position:relative;z-index:1}
.section{padding:var(--sp) 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(26px,3.2vw,40px);font-weight:700;line-height:1.3;letter-spacing:.01em}
.section-head p{margin-top:14px;color:var(--t-2);font-size:16.5px;max-width:38em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;color:var(--c-primary);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--c-primary),transparent)}

/* ---------- 页头带 ---------- */
.page-hero{
  position:relative;
  padding:54px 0 48px;
  min-height:262px;
  display:flex;
  align-items:center;
  border-bottom:1px solid var(--c-line);
  background-image:
    linear-gradient(180deg,rgba(4,7,15,.88),rgba(7,16,33,.95)),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover,cover;
  background-position:center,center;
  background-repeat:no-repeat,no-repeat;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--t-3);margin-bottom:20px;
}
.breadcrumb a{color:var(--t-3);transition:color .2s}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:rgba(255,255,255,.2)}
.hero-panel{
  padding:28px 30px;
  border-radius:var(--r-lg);
  background:rgba(12,26,46,.55);
  border:1px solid var(--c-line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  max-width:900px;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);
  font-weight:700;
  line-height:1.24;
  letter-spacing:.01em;
  margin:14px 0 16px;
}
.page-hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-sub{color:var(--t-2);font-size:16.5px;max-width:46em}
.hero-metrics{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;
}
.metric-chip{
  display:flex;align-items:baseline;gap:8px;
  padding:9px 16px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:rgba(255,255,255,.04);
  font-size:13px;color:var(--t-2);
}
.metric-chip b{font-size:17px;color:var(--c-primary);font-variant-numeric:tabular-nums}

/* ---------- 宫格要点卡 ---------- */
.grid-advantage{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:24px;
}
.adv-card{display:flex;flex-direction:column;gap:14px;padding:28px}
.adv-card:nth-child(1){grid-column:span 3}
.adv-card:nth-child(2){grid-column:span 3}
.adv-card:nth-child(3){grid-column:span 2}
.adv-card:nth-child(4){grid-column:span 4}
.adv-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.adv-index{
  font-size:34px;
  font-weight:700;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1px rgba(18,224,178,.7);
  font-variant-numeric:tabular-nums;
}
.adv-icon{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  border:1px solid rgba(124,92,255,.3);
  background:rgba(124,92,255,.14);
}
.adv-icon svg{width:20px;height:20px;fill:#BCA9FF}
.adv-card h3{font-size:20px;font-weight:600;line-height:1.45}
.adv-card p{color:var(--t-2);font-size:15.5px}
.check-list{margin-top:4px;display:grid;gap:10px}
.check-list li{
  position:relative;
  padding-left:26px;
  font-size:14.5px;
  color:var(--t-2);
  line-height:1.8;
}
.check-list li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:12px;height:7px;
  border-left:2px solid var(--c-primary);
  border-bottom:2px solid var(--c-primary);
  transform:rotate(-45deg);
}
.adv-card .media{margin-top:auto}

/* ---------- 媒体图位（含缺图兜底） ---------- */
.media{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  background:
    linear-gradient(140deg,rgba(18,224,178,.16),rgba(124,92,255,.16) 55%,rgba(4,7,15,.9)),
    var(--c-bg-soft);
  border:1px solid rgba(18,224,178,.24);
  box-shadow:0 0 0 1px rgba(18,224,178,.08),0 12px 28px rgba(0,0,0,.42);
}
.media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(4,7,15,.62));
  pointer-events:none;
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.media:hover img{transform:scale(1.04)}
.media-16x9{aspect-ratio:16/9;width:100%}
.media-4x3{aspect-ratio:4/3;width:100%}

/* ---------- 左右对比面板 ---------- */
.compare-wrap{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:start}
.compare{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--c-line);
  background:rgba(255,255,255,.035);
  box-shadow:var(--shadow-glass);
}
.compare-col{padding:28px 26px}
.compare-col+.compare-col{border-left:1px solid var(--c-line)}
.compare-col-alt{background:rgba(18,224,178,.05)}
.compare-head{display:flex;flex-direction:column;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--c-line)}
.compare-head h3{font-size:19px;font-weight:600}
.compare-list{display:grid;gap:0;margin-top:8px}
.compare-list li{
  display:grid;
  grid-template-columns:96px 1fr;
  gap:14px;
  padding:15px 0;
  border-bottom:1px dashed rgba(255,255,255,.08);
  font-size:14.5px;
  color:var(--t-2);
  line-height:1.75;
}
.compare-list li:last-child{border-bottom:0}
.compare-list .ck{
  color:var(--t-3);
  font-size:13px;
  letter-spacing:.02em;
}
.compare-list .cv b{color:var(--t-1);font-weight:600}
.side-panel{display:grid;gap:20px}
.side-panel .card{padding:24px}
.side-panel h3{font-size:18px;font-weight:600;margin-bottom:12px}
.side-panel p{color:var(--t-2);font-size:14.5px}
.side-facts{display:grid;gap:12px;margin-top:6px}
.side-facts div{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding-bottom:10px;border-bottom:1px solid var(--c-line);
  font-size:14px;color:var(--t-2);
}
.side-facts div:last-child{border-bottom:0;padding-bottom:0}
.side-facts b{color:var(--c-primary);font-variant-numeric:tabular-nums;font-size:16px}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;display:grid;gap:8px;max-width:900px}
.timeline::before{
  content:"";position:absolute;left:19px;top:14px;bottom:14px;width:1px;
  background:linear-gradient(180deg,rgba(18,224,178,.55),rgba(124,92,255,.35),transparent);
}
.tl-item{position:relative;display:grid;grid-template-columns:40px 1fr;gap:20px}
.tl-dot{
  width:38px;height:38px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--c-bg-soft);
  border:1px solid rgba(18,224,178,.4);
  color:var(--c-primary);
  font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 4px rgba(7,16,33,.9);
  z-index:1;
}
.tl-body{
  padding:16px 20px 20px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  transition:border-color .2s,background .2s,transform .2s;
}
.tl-item:hover .tl-body{background:var(--c-glass);border-color:var(--c-line);transform:translateX(2px)}
.tl-body h3{font-size:18px;font-weight:600;margin-bottom:8px}
.tl-body p{color:var(--t-2);font-size:15px}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:3fr 9fr;gap:48px;align-items:start}
.faq-side h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.35}
.faq-side p{margin-top:14px;color:var(--t-2);font-size:15px}
.faq-list{display:grid;gap:12px}
.faq-item{
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  background:var(--c-glass);
  overflow:hidden;
  transition:box-shadow .22s,border-color .22s;
}
.faq-item.open{
  border-color:rgba(18,224,178,.32);
  box-shadow:inset 2px 0 0 var(--c-primary),0 10px 26px rgba(0,0,0,.34);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--t-1);
  transition:color .2s;
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:18px;height:18px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--c-primary);
  transform:translate(-50%,-50%);
  transition:transform .22s,opacity .22s;
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{
  max-height:0;
  opacity:0;
  overflow:hidden;
  transition:max-height .28s ease,opacity .2s ease;
}
.faq-item.open .faq-a{max-height:340px;opacity:1}
.faq-a p{
  padding:0 22px 20px;
  color:var(--t-2);
  font-size:15px;
}

/* ---------- CTA 带 ---------- */
.cta-band{
  padding:0 0 var(--sp);
}
.cta-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  padding:38px 40px;
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  background:
    radial-gradient(600px 220px at 8% 0%,rgba(255,107,44,.18),transparent 60%),
    radial-gradient(560px 240px at 100% 100%,rgba(18,224,178,.16),transparent 62%),
    var(--c-glass);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
}
.cta-inner h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35}
.cta-inner p{margin-top:10px;color:var(--t-2);font-size:15.5px;max-width:44em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  background:var(--c-bg-deep);
  border-top:1px solid var(--c-line);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 5fr 3fr;
  gap:48px;
}
.footer-brand p{margin-top:18px;color:var(--t-2);font-size:14.5px;max-width:34em}
.footer-contact{display:grid;gap:8px;margin-top:22px;font-size:14px;color:var(--t-3)}
.footer-contact b{color:var(--t-1);font-weight:600}
.footer-nav{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.footer-col h4,.footer-side h4{
  font-size:14px;
  font-weight:600;
  color:var(--t-1);
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:12px}
.footer-col a{
  color:var(--t-2);
  font-size:14.5px;
  transition:color .2s,transform .2s;
  display:inline-block;
}
.footer-col a:hover{color:var(--c-primary);transform:translateX(2px)}
.footer-box{
  padding:22px;
  border-radius:var(--r-md);
  border:1px solid var(--c-line);
  background:var(--c-glass);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.footer-box p{color:var(--t-2);font-size:14px;margin-bottom:16px}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid var(--c-line);
  min-height:48px;
  display:flex;
  align-items:center;
  font-size:13px;
  color:var(--t-3);
}
.footer-bottom .container{padding-top:14px;padding-bottom:14px}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:40;
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:16px;
  width:250px;
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  background:rgba(12,26,46,.82);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),var(--shadow-glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  opacity:0;
  transform:translateY(14px);
  pointer-events:none;
  transition:opacity .26s,transform .26s;
}
.float-cta.show{opacity:1;transform:none;pointer-events:auto}
.float-cta-text{font-size:14px;color:var(--t-2);line-height:1.7}
.float-cta-text b{color:var(--t-1);display:block;font-size:15px;margin-bottom:2px}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  :root{--container:1140px}
}
@media (max-width:1024px){
  :root{--sp:72px}
  .nav-toggle{display:grid}
  .nav-links{
    position:absolute;
    top:calc(100% + 8px);
    left:16px;
    right:16px;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:14px;
    border-radius:var(--r-lg);
    border:1px solid var(--c-line);
    background:rgba(7,16,33,.97);
    box-shadow:var(--shadow-glass);
    backdrop-filter:blur(18px) saturate(140%);
    -webkit-backdrop-filter:blur(18px) saturate(140%);
    opacity:0;
    transform:translateY(-10px);
    pointer-events:none;
    transition:opacity .22s,transform .22s;
    margin-left:0;
  }
  .nav-links.open{opacity:1;transform:none;pointer-events:auto}
  .nav-links a{padding:12px 14px;font-size:15.5px;border-radius:var(--r-sm)}
  .nav-links a.active::after{left:14px;right:auto;width:20px;bottom:8px}
  .navbar-actions .btn-accent{display:none}
  .grid-advantage{grid-template-columns:repeat(2,1fr)}
  .adv-card:nth-child(1),.adv-card:nth-child(2),.adv-card:nth-child(3),.adv-card:nth-child(4){grid-column:span 1}
  .compare-wrap{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-side{grid-column:span 2}
}
@media (max-width:768px){
  :root{--sp:56px}
  body{font-size:15.5px}
  .topbar-ticker{display:none}
  .topbar-inner{justify-content:space-between;gap:10px}
  .topbar-note{font-size:12px;overflow:hidden;text-overflow:ellipsis}
  .navbar-inner{min-height:62px;gap:12px}
  .brand-mark{width:34px;height:34px}
  .brand-text b{font-size:15px}
  .section-head{margin-bottom:30px}
  .grid-advantage{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .compare-col+.compare-col{border-left:0;border-top:1px solid var(--c-line)}
  .compare-list li{grid-template-columns:1fr;gap:4px;padding:13px 0}
  .cta-inner{padding:28px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-side{grid-column:span 1}
  .footer-nav{grid-template-columns:1fr 1fr;gap:24px}
  .float-cta{
    left:0;right:0;bottom:0;
    width:100%;
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    border-radius:0;
    border-left:0;border-right:0;border-bottom:0;
    min-height:56px;
  }
  .float-cta .btn{height:38px;padding:0 14px;font-size:14px}
  .float-cta-text{font-size:13.5px;line-height:1.5}
  .float-cta-text b{font-size:14px;margin-bottom:0}
}
@media (max-width:560px){
  .container{padding:0 16px}
  .page-hero{padding:38px 0 34px}
  .hero-panel{padding:22px 18px}
  .btn{width:100%}
  .btn-sm{width:100%}
  .navbar-actions .btn{width:auto}
  .hero-metrics{flex-direction:column}
  .metric-chip{width:100%;justify-content:space-between}
  .adv-index{font-size:28px}
  .card{padding:20px}
  .footer-nav{grid-template-columns:1fr}
}
@media (max-width:400px){
  .brand-text span{display:none}
  .ticker-label{display:none}
}