/* roulang page: index */
:root{
  --bg-page:#060A16;
  --bg-section:#0A1024;
  --bg-glass:rgba(20,30,56,.58);
  --bg-glass-strong:rgba(26,38,68,.78);
  --line-soft:rgba(120,170,255,.14);
  --line-bright:rgba(120,205,255,.34);
  --brand-primary:#2E7CF6;
  --brand-cyan:#35E0D6;
  --brand-amber:#FFB13D;
  --brand-violet:#7A5CFF;
  --text-1:#EAF2FF;
  --text-2:#A9BBD8;
  --text-3:#6E82A6;
  --danger:#FF5A6E;
  --success:#35D07F;
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-pill:999px;
  --sh-card:0 24px 60px -30px rgba(0,0,0,.85);
  --sh-sm:0 12px 32px -18px rgba(0,0,0,.7);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:200ms;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,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:1.75;
  color:var(--text-1);
  background-color:var(--bg-page);
  background-image:
    radial-gradient(900px 520px at 10% -6%, rgba(53,224,214,.13), transparent 60%),
    radial-gradient(820px 520px at 96% 4%, rgba(122,92,255,.11), transparent 62%),
    linear-gradient(rgba(120,205,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,205,255,.04) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--text-1);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--brand-cyan)}
ul,ol{margin:0;padding:0}
button{font:inherit;cursor:pointer}
input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--brand-cyan);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============ 顶部公告条 ============ */
.announce{background:linear-gradient(90deg,rgba(46,124,246,.22),rgba(53,224,214,.12));border-bottom:1px solid var(--line-soft)}
.announce-inner{display:flex;align-items:center;gap:12px;min-height:42px;font-size:13px;color:var(--text-2)}
.announce-tag{flex:0 0 auto;padding:2px 10px;border-radius:var(--r-pill);background:rgba(53,224,214,.16);border:1px solid rgba(53,224,214,.4);color:var(--brand-cyan);font-size:12px;letter-spacing:.08em}
.announce-inner p{margin:0;flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.announce-close{flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:1px solid var(--line-soft);background:rgba(120,205,255,.06);color:var(--text-3);display:grid;place-items:center;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease)}
.announce-close:hover{color:var(--text-1);border-color:var(--line-bright);background:rgba(53,224,214,.12)}

/* ============ 导航 ============ */
.site-head{position:sticky;top:0;z-index:1040}
.nav-bar{background:rgba(6,10,22,.78);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line-soft);transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.site-head.is-scrolled .nav-bar{background:rgba(6,10,22,.95);box-shadow:0 18px 40px -30px rgba(0,0,0,.95)}
.nav-inner{position:relative;display:flex;align-items:center;gap:18px;min-height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:18px;color:#04121f;background:linear-gradient(135deg,var(--brand-cyan),var(--brand-primary));box-shadow:0 0 0 1px rgba(53,224,214,.4),0 10px 26px -12px rgba(53,224,214,.7)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:15px;font-weight:800;letter-spacing:.02em;color:var(--text-1)}
.brand-text em{font-style:normal;font-size:12px;letter-spacing:.14em;color:var(--brand-cyan)}
.nav-collapse{flex:1 1 auto;display:flex;justify-content:center}
.nav-list{display:flex;align-items:center;gap:4px;list-style:none}
.nav-item{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:var(--r-pill);font-size:15px;color:var(--text-2);transition:color var(--dur) var(--ease),background var(--dur) var(--ease)}
.nav-item:hover{color:var(--text-1);background:rgba(53,224,214,.08)}
.nav-item.is-active{color:var(--text-1);font-weight:700}
.nav-item.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand-cyan),var(--brand-primary));box-shadow:0 0 12px rgba(53,224,214,.8)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-soft);background:rgba(120,205,255,.06);color:var(--text-1);align-items:center;justify-content:center}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 16px;border-radius:var(--r-pill);background:rgba(120,205,255,.06);border:1px solid var(--line-soft);color:var(--text-2);font-size:14px;transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease)}
.mega-trigger:hover{color:var(--text-1);border-color:var(--line-bright)}
.mega-trigger i{font-size:11px;transition:transform var(--dur) var(--ease)}
.mega-wrap.show .mega-trigger i,.mega-wrap:hover .mega-trigger i{transform:rotate(180deg)}
.mega-wrap{position:relative}
.mega-panel{width:820px;left:auto;right:0;top:100%;margin-top:14px;padding:22px;border-radius:20px;background:var(--bg-glass-strong);border:1px solid var(--line-bright);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:var(--sh-card)}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px}
.mega-col h4{margin:0 0 12px;font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--text-3)}
.mega-link{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 12px;border-radius:10px;font-size:14px;color:var(--text-2);transition:background var(--dur) var(--ease),color var(--dur) var(--ease)}
.mega-link:hover{background:rgba(53,224,214,.1);color:var(--brand-cyan)}
.mega-link i{font-size:10px;opacity:.7}
.mega-post{display:block;padding:9px 0;border-bottom:1px dashed var(--line-soft)}
.mega-post:last-child{border-bottom:0}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--text-1);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:color var(--dur) var(--ease)}
.mega-post:hover strong{color:var(--brand-cyan)}
.mega-post span{font-size:12px;color:var(--text-3)}
.mega-cards{display:flex;flex-direction:column;gap:12px}
.mega-card{position:relative;display:block;border-radius:14px;overflow:hidden;border:1px solid var(--line-soft)}
.mega-card img{width:100%;height:86px;object-fit:cover;transition:transform .35s var(--ease)}
.mega-card:hover img{transform:scale(1.04)}
.mega-card span{position:absolute;left:12px;bottom:9px;font-size:13px;font-weight:600;color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.9)}
.mega-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(6,10,22,.75))}
@keyframes megaIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}

/* ============ 按钮体系 ============ */
.btn-main,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:700;letter-spacing:.02em;border:1px solid transparent;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),filter var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease)}
.btn-main{color:#04121f;background:linear-gradient(90deg,var(--brand-primary),var(--brand-cyan));box-shadow:0 0 0 1px rgba(46,124,246,.45),0 10px 30px -8px rgba(46,124,246,.6)}
.btn-main:hover{color:#04121f;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(53,224,214,.5),0 18px 42px -12px rgba(53,224,214,.6)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{color:var(--text-1);background:transparent;border-color:var(--line-bright)}
.btn-ghost:hover{color:var(--text-1);background:rgba(53,224,214,.12);border-color:var(--brand-cyan);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-main.is-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-amber{box-shadow:0 0 0 1px rgba(46,124,246,.45),0 12px 34px -10px rgba(255,177,61,.55)}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-cyan)}
.btn-text i{font-size:12px;transition:transform var(--dur) var(--ease)}
.btn-text:hover i{transform:translateX(3px)}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}
.btn-main[disabled],.btn-ghost[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed}

/* ============ 通用板块 ============ */
.section{position:relative;padding:96px 0}
.section-alt{background:linear-gradient(180deg,rgba(10,16,36,0),rgba(10,16,36,.92) 22%,rgba(10,16,36,.92) 78%,rgba(10,16,36,0))}
.section-head{max-width:720px;margin-bottom:46px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.sec-eyebrow{display:inline-block;font-size:12px;letter-spacing:.12em;color:var(--brand-cyan)}
.sec-title{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;margin:12px 0 10px;letter-spacing:-.01em}
.sec-desc{margin:0;font-size:15px;color:var(--text-2)}
.tag{display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);font-size:12px;line-height:1.7;border:1px solid transparent}
.tag-cyan{background:rgba(53,224,214,.12);border-color:rgba(53,224,214,.34);color:var(--brand-cyan)}
.tag-amber{background:rgba(255,177,61,.14);border-color:rgba(255,177,61,.36);color:var(--brand-amber)}
.badge{display:inline-flex;align-items:center;gap:6px;width:auto;padding:3px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:500;line-height:1.7;border:1px solid transparent}
.badge-cyan{background:rgba(53,224,214,.12);border-color:rgba(53,224,214,.34);color:var(--brand-cyan)}
.badge-amber{background:rgba(255,177,61,.14);border-color:rgba(255,177,61,.36);color:var(--brand-amber)}
.badge-gray{background:rgba(120,170,255,.08);border-color:var(--line-soft);color:var(--text-3)}

/* ============ Hero ============ */
.hero{position:relative;padding:72px 0 88px}
.hero::before{content:"";position:absolute;left:-180px;top:-140px;width:640px;height:640px;background:radial-gradient(circle,rgba(53,224,214,.16),transparent 66%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);background:rgba(53,224,214,.1);border:1px solid rgba(53,224,214,.32);color:var(--brand-cyan);font-size:12px;letter-spacing:.12em}
.hero-title{margin:20px 0 14px;font-size:clamp(30px,4.4vw,52px);line-height:1.2;font-weight:800;letter-spacing:-.01em}
.hero-sub{margin:0 0 28px;font-size:17px;color:var(--text-2);max-width:520px}
.trust-row{display:flex;flex-wrap:wrap;gap:32px;margin-top:36px;padding-top:26px;border-top:1px solid var(--line-soft)}
.trust-item{display:flex;flex-direction:column;gap:2px}
.trust-num{font-size:28px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.trust-num em{font-style:normal;font-size:15px;color:var(--brand-cyan);margin-left:2px}
.trust-label{font-size:13px;color:var(--text-3)}
.hero-visual{position:relative}
.visual-card{position:relative;border-radius:22px;overflow:hidden;border:1px solid var(--line-bright);box-shadow:var(--sh-card)}
.visual-card img{width:100%;height:386px;object-fit:cover}
.visual-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,22,.12),rgba(6,10,22,.74))}
.float-card{position:absolute;z-index:3;display:flex;flex-direction:column;gap:2px;padding:14px 18px;border-radius:16px;background:var(--bg-glass-strong);border:1px solid var(--line-bright);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--sh-card)}
.float-a{left:-22px;top:28px}
.float-b{right:-18px;bottom:34px}
.fc-num{font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.2}
.fc-num em{font-style:normal;font-size:13px;color:var(--brand-cyan);margin-left:2px}
.fc-label{font-size:12px;color:var(--text-3)}

/* ============ 痛点清单 ============ */
.pain-list{list-style:none}
.pain-item{display:grid;grid-template-columns:76px 1fr;gap:22px;align-items:start;padding:28px 18px;border-top:1px solid var(--line-soft);transition:background var(--dur) var(--ease)}
.pain-item:last-child{border-bottom:1px solid var(--line-soft)}
.pain-item:hover{background:rgba(53,224,214,.045)}
.pain-num{font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--text-3);letter-spacing:.02em;transition:color var(--dur) var(--ease)}
.pain-item:hover .pain-num{color:var(--brand-cyan)}
.pain-body h3{margin:0 0 8px;font-size:20px;font-weight:700}
.pain-body p{margin:0;font-size:15px;color:var(--text-2);max-width:780px}

/* ============ 交错图文 ============ */
.alt-row{display:grid;grid-template-columns:1.02fr 1fr;gap:52px;align-items:center;margin-bottom:72px}
.alt-row:last-child{margin-bottom:0}
.alt-row.alt-reverse .alt-media{order:2}
.alt-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-soft);background:var(--bg-glass);padding:10px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--sh-sm)}
.alt-media img{width:100%;height:320px;object-fit:cover;border-radius:var(--r-img)}
.alt-body h3{margin:14px 0 16px;font-size:22px;font-weight:700;line-height:1.4}
.point-list{list-style:none;display:flex;flex-direction:column;gap:12px;margin:0 0 22px}
.point-list li{position:relative;padding-left:22px;font-size:15px;color:var(--text-2)}
.point-list li::before{content:"";position:absolute;left:2px;top:10px;width:7px;height:7px;border-radius:50%;background:var(--brand-cyan);box-shadow:0 0 10px rgba(53,224,214,.8)}

/* ============ 数据卡 ============ */
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.data-card{padding:28px 24px;border-radius:var(--r-card);background:var(--bg-glass);border:1px solid var(--line-soft);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--sh-sm);transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.data-card:hover{transform:translateY(-4px);border-color:var(--line-bright);box-shadow:var(--sh-card)}
.data-num{font-size:clamp(28px,3vw,38px);font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.data-num em{font-style:normal;font-size:14px;font-weight:600;color:var(--text-3);margin-left:4px}
.data-label{margin-top:8px;font-size:15px;font-weight:600}
.data-note{margin-top:8px;font-size:13px;color:var(--text-3)}
.data-card.is-amber{border-color:rgba(255,177,61,.4);background:linear-gradient(180deg,rgba(255,177,61,.13),rgba(20,30,56,.62))}
.data-card.is-amber .data-num{color:var(--brand-amber)}
.data-card.is-amber .data-num em{color:rgba(255,177,61,.75)}

/* ============ 内容列表 ============ */
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.pill{padding:6px 14px;border-radius:var(--r-pill);font-size:13px;color:var(--text-2);background:rgba(120,205,255,.06);border:1px solid var(--line-soft);transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background var(--dur) var(--ease)}
.pill:hover{color:var(--brand-cyan);border-color:var(--line-bright);background:rgba(53,224,214,.1)}
.news-grid{display:grid;grid-template-columns:1.12fr 1fr;gap:24px;align-items:stretch}
.news-feature{display:flex;flex-direction:column;border-radius:var(--r-card);overflow:hidden;background:var(--bg-glass);border:1px solid var(--line-soft);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--sh-sm);transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.news-feature:hover{transform:translateY(-4px);border-color:var(--line-bright);box-shadow:var(--sh-card)}
.news-feature-media{display:block;overflow:hidden;aspect-ratio:16/9;background:linear-gradient(135deg,rgba(53,224,214,.18),rgba(122,92,255,.18))}
.news-feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-feature:hover .news-feature-media img{transform:scale(1.03)}
.news-feature-body{display:flex;flex-direction:column;gap:12px;padding:24px;flex:1}
.news-feature-body h3{margin:0;font-size:21px;font-weight:700;line-height:1.4}
.news-feature-body h3 a{color:var(--text-1)}
.news-feature-body h3 a:hover{color:var(--brand-cyan)}
.news-feature-body p{margin:0;font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line-soft)}
.news-side{display:flex;flex-direction:column;gap:18px}
.news-mini{display:grid;grid-template-columns:134px 1fr;gap:16px;padding:14px;border-radius:16px;background:var(--bg-glass);border:1px solid var(--line-soft);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--sh-sm);transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.news-mini:hover{transform:translateY(-4px);border-color:var(--line-bright);box-shadow:var(--sh-card)}
.news-mini-media{display:block;overflow:hidden;border-radius:12px;aspect-ratio:4/3;background:linear-gradient(135deg,rgba(53,224,214,.18),rgba(122,92,255,.18))}
.news-mini-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-mini:hover .news-mini-media img{transform:scale(1.04)}
.news-mini h3{margin:8px 0 6px;font-size:15px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-mini h3 a{color:var(--text-1)}
.news-mini h3 a:hover{color:var(--brand-cyan)}
.news-mini p{margin:0;font-size:13px;color:var(--text-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-mini .news-meta{padding-top:10px;margin-top:10px}
.news-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;min-height:208px;max-height:240px;padding:28px;border-radius:var(--r-card);border:1px dashed var(--line-bright);background:var(--bg-glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);text-align:center}
.news-empty i{font-size:26px;color:var(--brand-cyan)}
.news-empty p{margin:0;font-size:15px;color:var(--text-2)}

/* ============ 证言 ============ */
.voice-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start}
.voice-card{margin:0;display:flex;flex-direction:column;gap:18px;padding:28px;border-radius:var(--r-card);background:var(--bg-glass);border:1px solid var(--line-soft);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--sh-sm);transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.voice-card:hover{transform:translateY(-4px);border-color:var(--line-bright);box-shadow:var(--sh-card)}
.voice-card.voice-offset{margin-top:48px}
.voice-stars{font-size:13px;letter-spacing:.16em;color:var(--brand-amber)}
.voice-quote{margin:0;font-size:16px;line-height:1.85;color:var(--text-1)}
.voice-person{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--line-soft)}
.voice-avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-weight:800;color:#04121f;background:linear-gradient(135deg,var(--brand-cyan),var(--brand-violet))}
.voice-name{font-size:14px;font-weight:600}
.voice-role{font-size:12px;color:var(--text-3)}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.faq-acc .accordion-item{margin-bottom:14px;border-radius:16px;overflow:hidden;background:var(--bg-glass);border:1px solid var(--line-soft);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.faq-acc .accordion-button{display:flex;align-items:center;gap:14px;padding:18px 22px;font-size:16px;font-weight:600;line-height:1.5;color:var(--text-1);background:transparent;border:0;box-shadow:none}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand-cyan);background:rgba(53,224,214,.07)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand-cyan);outline-offset:-2px}
.faq-acc .accordion-button::after{margin-left:auto;width:auto;height:auto;background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;transition:transform var(--dur) var(--ease)}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq-acc .accordion-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-acc .accordion-body ul{margin:10px 0 0;padding-left:0;list-style:none;display:flex;flex-direction:column;gap:8px}
.faq-acc .accordion-body li{position:relative;padding-left:18px}
.faq-acc .accordion-body li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-cyan)}

/* ============ CTA ============ */
.cta-band{padding:96px 0 100px}
.cta-panel{position:relative;overflow:hidden;padding:60px 48px;text-align:center;border-radius:24px;border:1px solid var(--line-bright);background:linear-gradient(120deg,rgba(20,30,56,.92),rgba(12,20,44,.88));backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--sh-card)}
.cta-panel::before{content:"";position:absolute;inset:0;background:url(/assets/images/backpic/back-3.webp) center/cover no-repeat;opacity:.2}
.cta-panel::after{content:"";position:absolute;inset:0;background:radial-gradient(560px 280px at 50% 0%,rgba(255,177,61,.16),transparent 72%)}
.cta-inner{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:18px}
.cta-inner h2{margin:0;font-size:clamp(24px,2.6vw,34px);font-weight:800;letter-spacing:-.01em}
.cta-sub{margin:0;font-size:16px;color:var(--text-2)}
.cta-note{margin:0;font-size:13px;color:var(--text-3)}

/* ============ 页脚 ============ */
.site-foot{border-top:1px solid var(--line-soft);background:linear-gradient(180deg,rgba(10,16,36,.5),rgba(6,10,22,1))}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:72px 0 48px}
.foot-brand .brand{margin-bottom:18px}
.foot-desc{margin:0 0 20px;max-width:340px;font-size:14px;line-height:1.85;color:var(--text-2)}
.foot-social{display:flex;gap:10px}
.foot-social a{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;color:var(--text-2);background:rgba(120,205,255,.07);border:1px solid var(--line-soft);transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform var(--dur) var(--ease)}
.foot-social a:hover{color:var(--brand-cyan);border-color:var(--line-bright);transform:translateY(-2px)}
.foot-col h4{margin:0 0 18px;font-size:15px;font-weight:700}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.foot-col a,.foot-col li{font-size:14px;color:var(--text-2)}
.foot-col a:hover{color:var(--brand-cyan)}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:20px 0;border-top:1px solid var(--line-soft);font-size:13px;color:var(--text-3)}
.foot-bottom span{color:var(--text-3)}

/* ============ 回到顶部 ============ */
.to-top{position:fixed;right:24px;bottom:28px;z-index:1030;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;color:var(--text-1);background:var(--bg-glass-strong);border:1px solid var(--line-bright);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease),color var(--dur) var(--ease)}
.to-top.is-on{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--brand-cyan);transform:translateY(-3px)}

/* ============ 响应式 ============ */
@media (min-width:992px){
  .nav-collapse,.nav-collapse.collapse{display:flex !important;height:auto !important;visibility:visible !important}
  .mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{display:block;animation:megaIn .18s var(--ease)}
}
@media (max-width:1199px){
  .nav-item{padding:0 10px;font-size:14px}
  .mega-panel{width:720px}
  .hero-grid{gap:40px}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .visual-card img{height:300px}
  .float-a{left:8px;top:14px}
  .float-b{right:8px;bottom:14px}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .voice-grid{grid-template-columns:1fr}
  .voice-card.voice-offset{margin-top:0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px}
  .alt-row{grid-template-columns:1fr;gap:28px;margin-bottom:56px}
  .alt-row.alt-reverse .alt-media{order:0}
  .alt-media img{height:240px}
  .nav-toggle{display:inline-flex;order:2}
  .nav-inner{flex-wrap:wrap}
  .nav-collapse{position:absolute;left:0;right:0;top:100%;z-index:5;display:block;padding:12px 16px 18px;background:rgba(8,13,28,.98);border-bottom:1px solid var(--line-soft);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-item{height:48px;border-radius:12px;padding:0 14px}
  .nav-item.is-active{background:rgba(53,224,214,.12);color:var(--brand-cyan)}
  .nav-item.is-active::after{display:none}
  .mega-wrap{display:none}
  .nav-right{margin-left:auto;order:3}
}
@media (max-width:575px){
  body{background-attachment:scroll;line-height:1.85}
  .wrap{padding:0 16px}
  .section{padding:56px 0}
  .hero-title{font-size:clamp(26px,7vw,34px)}
  .hero-sub{font-size:15px}
  .float-card{display:none}
  .visual-card img{height:210px}
  .trust-row{gap:20px}
  .trust-num{font-size:22px}
  .data-grid{grid-template-columns:1fr}
  .pain-item{grid-template-columns:1fr;gap:10px;padding:22px 4px}
  .news-mini{grid-template-columns:104px 1fr;gap:12px}
  .cta-panel{padding:40px 22px}
  .btn-main,.btn-ghost{min-height:44px;padding:0 20px;font-size:14px;flex:1 1 auto}
  .foot-grid{grid-template-columns:1fr}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:14px}
  .to-top{right:16px;bottom:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .btn-main:hover,.btn-ghost:hover,.data-card:hover,.news-feature:hover,.news-mini:hover,.voice-card:hover{transform:none}
}

/* roulang page: article */
:root{
  --bg-page:#060A16;
  --bg-section:#0A1024;
  --bg-glass:rgba(20,30,56,.58);
  --bg-glass-strong:rgba(26,38,68,.78);
  --line-soft:rgba(120,170,255,.14);
  --line-bright:rgba(120,205,255,.34);
  --brand-primary:#2E7CF6;
  --brand-cyan:#35E0D6;
  --brand-amber:#FFB13D;
  --brand-violet:#7A5CFF;
  --text-1:#EAF2FF;
  --text-2:#A9BBD8;
  --text-3:#6E82A6;
  --danger:#FF5A6E;
  --success:#35D07F;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --shadow-card:0 12px 32px -18px rgba(0,0,0,.7);
  --shadow-float:0 24px 60px -30px rgba(0,0,0,.85);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;background:var(--bg-page);color:var(--text-1);
  font-family:var(--font-cn);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,170,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;display:block}
a{color:var(--text-2);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand-cyan)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--text-1)}
p{margin:0}
ul{list-style:none;margin:0;padding:0}
:focus-visible{outline:2px solid var(--brand-cyan);outline-offset:2px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.site-head,main,.site-foot{position:relative;z-index:1}

/* ============ 公告条 ============ */
.announce{background:linear-gradient(90deg,rgba(46,124,246,.22),rgba(122,92,255,.16));border-bottom:1px solid var(--line-soft)}
.announce-inner{display:flex;align-items:center;gap:12px;min-height:42px;padding-top:6px;padding-bottom:6px}
.announce-tag{flex:0 0 auto;font-size:12px;letter-spacing:.08em;padding:3px 10px;border-radius:999px;background:rgba(53,224,214,.14);border:1px solid rgba(53,224,214,.36);color:var(--brand-cyan)}
.announce p{font-size:13.5px;color:var(--text-2);flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.announce-close{flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:1px solid var(--line-soft);background:transparent;color:var(--text-3);cursor:pointer;transition:.18s var(--ease)}
.announce-close:hover{color:var(--text-1);border-color:var(--line-bright)}

/* ============ 导航 ============ */
.site-head{position:sticky;top:0;z-index:900}
.nav-bar{background:rgba(8,14,30,.74);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line-soft);transition:background .22s var(--ease),box-shadow .22s var(--ease)}
.site-head.is-scrolled .nav-bar{background:rgba(5,9,20,.94);box-shadow:0 14px 40px -28px rgba(0,0,0,.95)}
.nav-inner{position:relative;display:flex;align-items:center;gap:20px;height:76px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:17px;color:#04101F;background:linear-gradient(135deg,var(--brand-cyan),var(--brand-primary));box-shadow:0 10px 26px -12px rgba(53,224,214,.8)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;color:var(--text-1);font-weight:800;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.16em}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-soft);background:rgba(20,30,56,.6);color:var(--text-1);cursor:pointer;margin-left:auto}
.nav-collapse{flex:1 1 auto}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-item{position:relative;display:inline-block;padding:9px 13px;border-radius:10px;font-size:15px;color:var(--text-2);transition:.18s var(--ease)}
.nav-item:hover{color:var(--text-1);background:rgba(53,224,214,.08)}
.nav-item.is-active{color:var(--text-1)}
.nav-item.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand-cyan),var(--brand-primary));box-shadow:0 0 12px rgba(53,224,214,.85)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.mega-trigger{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:999px;border:1px solid var(--line-soft);background:rgba(20,30,56,.6);color:var(--text-2);font-size:14px;cursor:pointer;transition:.2s var(--ease)}
.mega-trigger:hover{color:var(--text-1);border-color:var(--line-bright);background:rgba(53,224,214,.1)}
.mega-trigger i{font-size:11px;transition:transform .2s var(--ease)}
.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);border:0;
  font-size:15px;font-weight:700;color:#03101E;cursor:pointer;
  background:linear-gradient(90deg,var(--brand-primary),var(--brand-cyan));
  box-shadow:0 0 0 1px rgba(46,124,246,.45),0 10px 30px -8px rgba(46,124,246,.6);
  transition:.2s var(--ease);
}
.btn-main:hover{color:#03101E;filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(53,224,214,.7),0 16px 38px -10px rgba(53,224,214,.72)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid var(--line-bright);background:transparent;color:var(--text-1);
  font-size:15px;font-weight:600;cursor:pointer;transition:.2s var(--ease);
}
.btn-ghost:hover{color:var(--text-1);background:rgba(53,224,214,.12);border-color:var(--brand-cyan);transform:translateY(-2px)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-cyan);font-size:14px;font-weight:600}
.btn-text i{transition:transform .2s var(--ease)}
.btn-text:hover i{transform:translateX(3px)}

/* ============ Mega 面板 ============ */
.mega-wrap{position:relative}
.mega-panel{
  width:760px;max-width:88vw;padding:20px;margin-top:12px!important;
  border-radius:var(--radius-card);border:1px solid var(--line-soft)!important;
  background:var(--bg-glass-strong)!important;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-float);animation:megaIn .18s var(--ease);
}
@keyframes megaIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.mega-grid{display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:18px}
.mega-col h4{font-size:13px;letter-spacing:.12em;color:var(--text-3);font-weight:700;margin-bottom:10px;text-transform:uppercase}
.mega-link{display:flex;align-items:center;justify-content:space-between;padding:9px 11px;border-radius:10px;font-size:14.5px;color:var(--text-2)}
.mega-link:hover{background:rgba(53,224,214,.1);color:var(--text-1)}
.mega-link i{font-size:11px;color:var(--text-3)}
.mega-post{display:block;padding:9px 11px;border-radius:10px}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--text-1);line-height:1.5}
.mega-post span{font-size:12px;color:var(--text-3)}
.mega-post:hover{background:rgba(46,124,246,.12)}
.mega-card{display:block;border-radius:14px;overflow:hidden;border:1px solid var(--line-soft);margin-bottom:10px}
.mega-card img{width:100%;height:76px;object-fit:cover}
.mega-card span{display:block;padding:8px 10px;font-size:13px;color:var(--text-2);background:rgba(10,16,36,.7)}

/* ============ 面包屑 ============ */
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);overflow:hidden;white-space:nowrap}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand-cyan)}
.crumb i{font-size:9px;color:rgba(110,130,166,.7)}
.crumb em{font-style:normal;color:var(--text-2);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头 ============ */
.article-tdk{height:0;overflow:hidden}
.article-hero{
  padding:36px 0 32px;border-bottom:1px solid var(--line-soft);
  background:
    radial-gradient(720px 260px at 12% 0%,rgba(53,224,214,.14),transparent 70%),
    radial-gradient(600px 240px at 88% 20%,rgba(122,92,255,.12),transparent 72%),
    var(--bg-section);
}
.article-head{margin-top:20px;max-width:860px}
.badge-cyan{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;color:var(--brand-cyan);background:rgba(53,224,214,.12);border:1px solid rgba(53,224,214,.34)}
.article-head h1{font-size:clamp(26px,3.6vw,44px);line-height:1.25;font-weight:800;letter-spacing:-.01em;margin:14px 0 16px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13.5px;color:var(--text-3)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--brand-cyan);font-size:12px}
.share-group{display:flex;align-items:center;gap:8px;margin-left:auto}
.share-group button{width:36px;height:36px;border-radius:50%;border:1px solid var(--line-soft);background:rgba(20,30,56,.6);color:var(--text-2);cursor:pointer;transition:.18s var(--ease)}
.share-group button:hover{color:var(--brand-cyan);border-color:var(--line-bright);transform:translateY(-2px)}

/* ============ 正文布局 ============ */
.article-main{padding:56px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
.article-cover{margin:0 0 28px;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line-soft);background:linear-gradient(135deg,rgba(53,224,214,.16),rgba(122,92,255,.18))}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{padding:10px 14px;font-size:13px;color:var(--text-3);border-top:1px solid var(--line-soft);background:rgba(10,16,36,.6)}
.article-body{font-size:17px;line-height:1.9;color:#D6E2F5;max-width:760px;overflow-wrap:anywhere}
.article-body h2{font-size:clamp(21px,2.1vw,27px);line-height:1.4;font-weight:700;margin:2em 0 .85em;padding-left:14px;border-left:3px solid var(--brand-cyan)}
.article-body h3{font-size:20px;line-height:1.45;font-weight:700;margin:1.7em 0 .6em}
.article-body h4{font-size:17px;font-weight:700;margin:1.4em 0 .5em;color:var(--text-1)}
.article-body p{margin:0 0 1.1em}
.article-body a{color:var(--brand-cyan);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#7FF3EA}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.42em 0}
.article-body ul li::marker{color:var(--brand-cyan)}
.article-body ol li::marker{color:var(--brand-cyan);font-weight:700}
.article-body blockquote{margin:1.5em 0;padding:16px 20px;border-left:3px solid var(--brand-cyan);background:rgba(53,224,214,.07);border-radius:0 12px 12px 0;color:var(--text-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:1.5em auto}
.article-body figure{margin:1.5em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0;background:rgba(12,20,42,.6);border-radius:12px;overflow:hidden}
.article-body th{background:rgba(53,224,214,.1);color:var(--text-1);font-weight:700;text-align:left;padding:11px 14px;border-bottom:1px solid var(--line-soft)}
.article-body td{padding:11px 14px;border-bottom:1px solid var(--line-soft);color:var(--text-2)}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line-soft);margin:2em 0}
.article-body code{background:rgba(53,224,214,.1);color:#8FF3EB;padding:2px 6px;border-radius:6px;font-size:14px}

/* ============ 空态 ============ */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:220px;padding:32px;border-radius:var(--radius-card);border:1px solid var(--line-soft);background:var(--bg-glass);backdrop-filter:blur(14px);text-align:center}
.empty-state i{font-size:30px;color:var(--brand-cyan)}
.empty-state p{color:var(--text-2);font-size:15px;margin:0}

/* ============ 标签、推荐、CTA ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line-soft)}
.tag-pill{padding:6px 14px;border-radius:999px;font-size:13px;color:var(--text-2);background:rgba(20,30,56,.6);border:1px solid var(--line-soft);transition:.18s var(--ease)}
.tag-pill:hover{color:var(--brand-cyan);border-color:var(--line-bright);background:rgba(53,224,214,.1)}
.side-title{font-size:14px;letter-spacing:.1em;color:var(--text-3);font-weight:700;margin-bottom:14px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:22px}
.card-item{
  display:flex;flex-direction:column;height:100%;border-radius:var(--radius-card);overflow:hidden;
  background:var(--bg-glass);border:1px solid var(--line-soft);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.card-item:hover{transform:translateY(-4px);border-color:var(--line-bright);box-shadow:0 22px 48px -26px rgba(53,224,214,.55)}
.card-thumb{position:relative;overflow:hidden;border-radius:0;background:linear-gradient(135deg,rgba(53,224,214,.16),rgba(122,92,255,.2))}
.card-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease)}
.card-item:hover .card-thumb img{transform:scale(1.03)}
.card-thumb .badge-cyan{position:absolute;left:12px;top:12px;background:rgba(6,12,26,.78)}
.card-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-body h3{font-size:16.5px;line-height:1.5;font-weight:700}
.card-body p{font-size:13.5px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3);margin-top:auto}
.cta-strip{
  margin-top:48px;padding:30px;border-radius:var(--radius-card);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  border:1px solid var(--line-bright);
  background:linear-gradient(120deg,rgba(46,124,246,.2),rgba(122,92,255,.14)),rgba(10,16,36,.75);
  box-shadow:var(--shadow-float);
}
.cta-strip h3{font-size:clamp(19px,1.9vw,24px);line-height:1.4;margin-bottom:6px}
.cta-strip p{font-size:14px;color:var(--text-2)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-strip.amber{box-shadow:0 0 0 1px rgba(255,177,61,.28),0 24px 60px -30px rgba(255,177,61,.5)}

/* ============ 侧栏 ============ */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:100px}
.side-box{padding:20px;border-radius:var(--radius-card);background:var(--bg-glass);border:1px solid var(--line-soft);backdrop-filter:blur(14px);box-shadow:var(--shadow-card)}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-item{display:flex;gap:12px;align-items:flex-start;padding-bottom:14px;border-bottom:1px solid var(--line-soft)}
.side-item:last-child{padding-bottom:0;border-bottom:0}
.side-item img{width:74px;height:56px;object-fit:cover;border-radius:10px;flex:0 0 auto}
.side-item strong{display:block;font-size:14px;line-height:1.5;font-weight:600;color:var(--text-1);transition:color .18s var(--ease)}
.side-item:hover strong{color:var(--brand-cyan)}
.side-item span{font-size:12px;color:var(--text-3)}
.side-cta{background:linear-gradient(140deg,rgba(46,124,246,.22),rgba(53,224,214,.12)),rgba(10,16,36,.8);border:1px solid var(--line-bright)}
.side-cta h3{font-size:17px;margin-bottom:8px}
.side-cta p{font-size:13.5px;color:var(--text-2);margin-bottom:14px}

/* ============ 页脚 ============ */
.site-foot{margin-top:80px;border-top:1px solid var(--line-soft);background:var(--bg-section)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;padding:64px 0 44px}
.foot-brand .brand{margin-bottom:16px}
.foot-desc{font-size:13.5px;color:var(--text-3);line-height:1.85;margin-bottom:18px;max-width:340px}
.foot-social{display:flex;gap:10px}
.foot-social a{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;border:1px solid var(--line-soft);background:rgba(20,30,56,.6);color:var(--text-2)}
.foot-social a:hover{color:var(--brand-cyan);border-color:var(--line-bright);transform:translateY(-2px)}
.foot-col h4{font-size:14px;letter-spacing:.08em;color:var(--text-1);margin-bottom:16px}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col li,a{font-size:13.5px;color:var(--text-2)}
.foot-col ul a:hover{color:var(--brand-cyan)}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:20px 0 28px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--text-3)}

/* ============ 回到顶部 ============ */
.to-top{position:fixed;right:20px;bottom:26px;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line-soft);background:rgba(16,26,50,.82);backdrop-filter:blur(12px);color:var(--text-2);cursor:pointer;opacity:0;visibility:hidden;transition:.24s var(--ease);z-index:950}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{color:var(--brand-cyan);border-color:var(--line-bright);transform:translateY(-3px)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:36px}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media (max-width:991.98px){
  .nav-toggle{display:grid;place-items:center}
  .nav-collapse{position:absolute;left:0;right:0;top:100%;padding:12px 16px 20px;background:rgba(5,9,20,.97);backdrop-filter:blur(18px);border-bottom:1px solid var(--line-soft)}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-item{padding:12px 14px;font-size:15.5px}
  .nav-item.is-active{background:rgba(53,224,214,.1)}
  .nav-item.is-active::after{display:none}
  .nav-right{margin-left:0}
  .mega-trigger{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr;padding:48px 0 32px}
  .article-main{padding:40px 0 64px}
}
@media (max-width:767.98px){
  .article-body{font-size:16.5px;line-height:1.9}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .article-head h1{font-size:clamp(23px,6vw,30px)}
  .share-group{margin-left:0;width:100%}
  .cta-strip{padding:24px}
}
@media (max-width:575.98px){
  .wrap{padding:0 16px}
  .nav-inner{height:66px}
  .brand-text strong{font-size:15px}
  .announce p{font-size:12.5px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .article-hero{padding:26px 0 24px}
  .btn-main,.btn-ghost{min-height:44px;width:100%}
  .cta-actions{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .card-item:hover,.btn-main:hover,.btn-ghost:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --bg-page:#060A16;
  --bg-section:#0A1024;
  --bg-glass:rgba(20,30,56,.58);
  --bg-glass-strong:rgba(26,38,68,.78);
  --line-soft:rgba(120,170,255,.14);
  --line-bright:rgba(120,205,255,.34);
  --brand-primary:#2E7CF6;
  --brand-cyan:#35E0D6;
  --brand-amber:#FFB13D;
  --brand-violet:#7A5CFF;
  --text-1:#EAF2FF;
  --text-2:#A9BBD8;
  --text-3:#6E82A6;
  --danger:#FF5A6E;
  --success:#35D07F;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --shadow-card:0 12px 32px -18px rgba(0,0,0,.7);
  --shadow-glass:0 24px 60px -30px rgba(0,0,0,.85);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",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:1.75;
  color:var(--text-1);
  background-color:var(--bg-page);
  background-image:
    radial-gradient(900px 520px at 12% -8%, rgba(53,224,214,.10), transparent 62%),
    radial-gradient(780px 460px at 94% 2%, rgba(122,92,255,.09), transparent 60%),
    linear-gradient(rgba(120,170,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,170,255,.035) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-attachment:fixed,fixed,scroll,scroll;
  overflow-x:hidden;
}
body,h1,h2,h3,h4{font-feature-settings:"tnum" 1}
img{max-width:100%;display:block;object-fit:cover;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease)}
a:hover{color:var(--brand-cyan)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-cyan);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.glass{
  position:relative;
  background:var(--bg-glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-glass);
  overflow:hidden;
}
.glass::before{
  content:"";position:absolute;top:0;left:18px;right:18px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(170,225,255,.55),transparent);
}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;letter-spacing:.04em;
  border:1px solid var(--line-soft);background:rgba(120,170,255,.08);color:var(--text-2);
}
.badge-cy{border-color:rgba(53,224,214,.36);background:rgba(53,224,214,.12);color:#8CF3EC}
.badge-amber{border-color:rgba(255,177,61,.36);background:rgba(255,177,61,.12);color:#FFD08A}
.btn-main,.btn-ghost,.btn-text{display:inline-flex;align-items:center;gap:8px;font-weight:600;transition:all .18s var(--ease)}
.btn-main{
  padding:13px 26px;border-radius:var(--radius-btn);font-size:15px;font-weight:700;color:#03121F;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-primary));
  box-shadow:0 0 0 1px rgba(46,124,246,.45),0 10px 30px -8px rgba(46,124,246,.6);
}
.btn-main:hover{color:#03121F;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(53,224,214,.6),0 16px 40px -10px rgba(53,224,214,.62)}
.btn-ghost{
  padding:12px 24px;border-radius:var(--radius-btn);font-size:15px;
  color:var(--brand-cyan);border:1px solid rgba(53,224,214,.42);background:transparent;
}
.btn-ghost:hover{color:#9BF4EE;background:rgba(53,224,214,.12);transform:translateY(-2px);border-color:rgba(53,224,214,.7)}
.btn-text{font-size:15px;color:var(--brand-cyan);padding:4px 0}
.btn-text i{transition:transform .18s var(--ease)}
.btn-text:hover i{transform:translateX(3px)}
.btn-main:disabled,.btn-ghost:disabled{opacity:.45;box-shadow:none;transform:none;cursor:not-allowed}
.eyebrow{display:block;font-size:12px;letter-spacing:.12em;color:var(--brand-cyan);margin-bottom:12px;font-weight:600}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-title{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
.sec-lead{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.8}
.section{padding:100px 0;position:relative}
.section.alt{background:linear-gradient(180deg,rgba(10,16,36,0),rgba(10,16,36,.72) 24%,rgba(10,16,36,.72) 76%,rgba(10,16,36,0))}
/* header */
.site-head{position:sticky;top:0;z-index:1030}
.announce{background:linear-gradient(90deg,rgba(46,124,246,.20),rgba(53,224,214,.10));border-bottom:1px solid var(--line-soft);font-size:13px;color:var(--text-2)}
.announce-inner{display:flex;align-items:center;gap:12px;min-height:44px;padding-top:7px;padding-bottom:7px}
.announce-tag{flex:0 0 auto;padding:2px 10px;border-radius:999px;font-size:12px;background:rgba(53,224,214,.16);border:1px solid rgba(53,224,214,.36);color:#8CF3EC}
.announce-inner p{flex:1;min-width:0;line-height:1.6}
.announce-close{flex:0 0 auto;width:28px;height:28px;border-radius:8px;color:var(--text-3);display:grid;place-items:center}
.announce-close:hover{color:var(--brand-cyan);background:rgba(120,205,255,.10)}
.nav-bar{background:rgba(6,10,22,.74);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid var(--line-soft);transition:background-color .2s var(--ease)}
.site-head.is-scrolled .nav-bar{background:rgba(5,8,18,.94)}
.nav-inner{position:relative;display:flex;align-items:center;gap:18px;height:76px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;font-size:18px;color:#03121F;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-primary));
  box-shadow:0 8px 22px -10px rgba(53,224,214,.85);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--text-3)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line-soft);color:var(--text-1);place-items:center;margin-left:auto}
.nav-toggle:hover{border-color:var(--line-bright);color:var(--brand-cyan)}
.nav-collapse{flex:1;min-width:0}
.nav-list{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
.nav-item{position:relative;display:inline-block;padding:9px 14px;border-radius:10px;font-size:15px;color:var(--text-2)}
.nav-item:hover{color:var(--text-1);background:rgba(120,205,255,.08)}
.nav-item.is-active{color:var(--text-1);font-weight:600}
.nav-item.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand-cyan),var(--brand-primary));box-shadow:0 0 12px rgba(53,224,214,.75)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:12px;font-size:14px;
  color:var(--text-2);border:1px solid var(--line-soft);background:rgba(120,170,255,.05);
}
.mega-trigger:hover{color:var(--brand-cyan);border-color:var(--line-bright)}
.mega-trigger i{font-size:11px;transition:transform .18s var(--ease)}
.mega-wrap:hover .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;left:auto;width:820px;max-width:88vw;
  padding:0;border-radius:var(--radius-card);border:1px solid var(--line-soft);
  background:var(--bg-glass-strong);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  box-shadow:0 30px 70px -32px rgba(0,0,0,.9);
  display:block;visibility:hidden;opacity:0;transform:translateY(6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s var(--ease);
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel,.mega-panel.show{visibility:visible;opacity:1;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.1fr 1.1fr 1.2fr;gap:20px;padding:22px}
.mega-col h4{font-size:13px;letter-spacing:.12em;color:var(--text-3);margin-bottom:14px;font-weight:600}
.mega-link{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-radius:10px;font-size:14px;color:var(--text-2)}
.mega-link:hover{background:rgba(53,224,214,.10);color:var(--text-1)}
.mega-link i{font-size:11px;color:var(--brand-cyan)}
.mega-post{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:9px 4px;font-size:14px;color:var(--text-2);border-bottom:1px dashed rgba(120,170,255,.14)}
.mega-post:last-child{border-bottom:0}
.mega-post span{display:block;line-height:1.55}
.mega-post em{font-style:normal;font-size:12px;color:var(--text-3);flex:0 0 auto;padding-top:2px}
.mega-entry{display:flex;align-items:center;gap:12px;padding:10px;border-radius:14px;border:1px solid var(--line-soft);background:rgba(120,170,255,.05);margin-bottom:12px}
.mega-entry:hover{border-color:var(--line-bright);background:rgba(53,224,214,.09)}
.mega-entry img{width:64px;height:48px;border-radius:10px;flex:0 0 auto}
.mega-entry strong{display:block;font-size:14px;font-weight:600;color:var(--text-1)}
.mega-entry small{color:var(--text-3);font-size:12px}
/* hero-lite */
.hero-lite{
  position:relative;overflow:hidden;
  padding:52px 0 60px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-lite::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg,rgba(6,10,22,.95) 6%,rgba(6,10,22,.74) 50%,rgba(10,16,36,.88));
}
.hero-lite::after{
  content:"";position:absolute;width:640px;height:420px;left:-140px;bottom:-200px;
  background:radial-gradient(closest-side,rgba(53,224,214,.18),transparent);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--text-3);margin-bottom:18px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--brand-cyan)}
.crumb i{font-size:10px;opacity:.6}
.crumb .now{color:var(--text-1);max-width:240px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hero-card{max-width:780px;padding:34px 36px}
.hero-card h1{font-size:clamp(30px,4.4vw,52px);line-height:1.2;font-weight:800;letter-spacing:-.01em}
.hero-card .hero-sub{margin-top:16px;color:var(--text-2);font-size:17px;line-height:1.8;max-width:620px}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-meta{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}
/* split blocks */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:72px}
.split:last-child{margin-bottom:0}
.split.rev .split-media{order:2}
.split-media img{width:100%;aspect-ratio:16/10;border-radius:var(--radius-img);box-shadow:var(--shadow-card);transition:transform .3s var(--ease)}
.split-media:hover img{transform:scale(1.02)}
.split-body h3{font-size:21px;margin-bottom:14px}
.split-body p{color:var(--text-2);margin-bottom:16px}
.list-check li{position:relative;padding-left:26px;margin-bottom:11px;color:var(--text-2);font-size:15px}
.list-check li::before{content:"";position:absolute;left:6px;top:10px;width:7px;height:7px;border-radius:50%;background:var(--brand-cyan);box-shadow:0 0 10px rgba(53,224,214,.85)}
.split-body .btn-text{margin-top:14px}
/* table */
.table-shell{padding:6px}
.table-scroll{overflow-x:auto;border-radius:var(--radius-card)}
table.spec{width:100%;min-width:680px;border-collapse:collapse}
table.spec caption{caption-side:top;text-align:left;padding:18px 22px 6px;font-size:14px;color:var(--text-3)}
table.spec thead th{
  background:rgba(46,124,246,.14);text-align:left;font-size:13px;letter-spacing:.06em;color:#CFE3FF;
  padding:16px 22px;border-bottom:1px solid var(--line-soft);white-space:nowrap;font-weight:600;
}
table.spec tbody td{padding:16px 22px;font-size:15px;color:var(--text-2);border-bottom:1px solid rgba(120,170,255,.08);vertical-align:top}
table.spec tbody tr:last-child td{border-bottom:0}
table.spec tbody tr:hover{background:rgba(53,224,214,.05)}
table.spec td strong{color:var(--text-1);display:block;font-weight:600}
/* bento */
.bento{display:grid;grid-template-columns:1.15fr 1fr;grid-template-rows:auto auto;gap:24px}
.bento-card{padding:28px}
.bento-main{grid-row:span 2;display:flex;flex-direction:column}
.bento-main ol{counter-reset:step;margin-top:18px}
.bento-main ol li{position:relative;padding-left:44px;margin-bottom:18px;color:var(--text-2);font-size:15px}
.bento-main ol li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:1px;width:30px;height:30px;border-radius:10px;
  display:grid;place-items:center;font-size:12px;font-weight:700;color:#8CF3EC;
  border:1px solid rgba(53,224,214,.36);background:rgba(53,224,214,.10);
}
.bento-main h3{font-size:20px}
.bento-card h3{font-size:18px;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.bento-card h3 i{color:var(--brand-cyan);font-size:16px}
.bento-card p{color:var(--text-2);font-size:15px}
.bento-media{margin-top:auto;padding-top:22px}
.bento-media img{width:100%;aspect-ratio:16/9;border-radius:var(--radius-img)}
/* qa */
.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.qa-card{padding:26px}
.qa-card h3{font-size:17px;line-height:1.5;display:flex;gap:12px;align-items:flex-start}
.qa-card h3 i{color:var(--brand-cyan);font-size:15px;margin-top:5px;flex:0 0 auto}
.qa-card p{margin-top:12px;color:var(--text-2);font-size:15px}
/* cta */
.cta-band{
  position:relative;overflow:hidden;border-radius:22px;border:1px solid var(--line-bright);
  background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;
  padding:52px 48px;box-shadow:var(--shadow-glass);
}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(118deg,rgba(6,10,22,.95),rgba(10,16,36,.86))}
.cta-band::after{
  content:"";position:absolute;width:520px;height:380px;right:-120px;bottom:-180px;
  background:radial-gradient(closest-side,rgba(255,177,61,.18),transparent);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px)}
.cta-inner p{margin-top:12px;color:var(--text-2);max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
/* footer */
.site-foot{margin-top:20px;padding:64px 0 28px;border-top:1px solid var(--line-soft);background:linear-gradient(180deg,rgba(10,16,36,.55),rgba(6,10,22,.98))}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.foot-desc{margin:18px 0;color:var(--text-2);font-size:14px;line-height:1.85;max-width:340px}
.foot-social{display:flex;gap:10px}
.foot-social a{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;border:1px solid var(--line-soft);background:rgba(120,170,255,.05);color:var(--text-2)}
.foot-social a:hover{color:var(--brand-cyan);border-color:var(--line-bright);transform:translateY(-2px)}
.foot-col h4{font-size:15px;margin-bottom:18px}
.foot-col ul li{margin-bottom:11px;font-size:14px;color:var(--text-2);line-height:1.6}
.foot-col ul li a{color:var(--text-2)}
.foot-col ul li a:hover{color:var(--brand-cyan)}
.foot-bottom{margin-top:42px;padding-top:20px;border-top:1px solid var(--line-soft);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;z-index:1040;
  display:grid;place-items:center;color:var(--text-1);border:1px solid var(--line-bright);
  background:var(--bg-glass-strong);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;transition:opacity .2s var(--ease),visibility .2s var(--ease),transform .2s var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{color:var(--brand-cyan);transform:translateY(-3px)}
@media (max-width:1199.98px){
  .mega-panel{width:720px}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .foot-brand{grid-column:span 3}
}
@media (max-width:991.98px){
  .wrap{padding:0 20px}
  .nav-toggle{display:grid}
  .nav-collapse{
    position:absolute;top:100%;left:0;right:0;flex:1 0 100%;
    background:rgba(8,13,28,.98);border-bottom:1px solid var(--line-soft);
    padding:16px 20px 22px;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    max-height:78vh;overflow-y:auto;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-item{display:block;padding:13px 14px;font-size:15px}
  .nav-item.is-active{background:rgba(53,224,214,.10)}
  .nav-item.is-active::after{left:14px;right:auto;width:3px;height:18px;top:50%;bottom:auto;transform:translateY(-50%)}
  .nav-right .mega-wrap{display:none}
  .mega-panel{left:auto;right:0;width:min(92vw,440px)}
  .mega-grid{grid-template-columns:1fr;gap:16px;padding:18px}
  .section{padding:72px 0}
  .split{grid-template-columns:1fr;gap:26px;margin-bottom:56px}
  .split.rev .split-media{order:0}
  .bento{grid-template-columns:1fr}
  .bento-main{grid-row:auto}
  .qa-grid{grid-template-columns:1fr}
  .hero-card{padding:28px 26px}
  .cta-band{padding:40px 28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px}
  .foot-brand{grid-column:span 2}
}
@media (max-width:767.98px){
  .announce-inner p{font-size:12px}
  .announce-inner{gap:8px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .hero-lite{padding:36px 0 44px}
  .hero-card{padding:24px 20px}
  .hero-card .hero-sub{font-size:15px}
  .hero-actions{gap:12px}
  .btn-main,.btn-ghost{width:100%;justify-content:center;min-height:46px}
  .foot-grid{grid-template-columns:1fr}
  .foot-brand{grid-column:span 1}
  .foot-bottom{flex-direction:column;gap:8px}
  .to-top{right:16px;bottom:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .btn-main:hover,.btn-ghost:hover,.to-top:hover,.foot-social a:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --bg-page:#060A16;
  --bg-section:#0A1024;
  --bg-glass:rgba(20,30,56,.58);
  --bg-glass-strong:rgba(26,38,68,.78);
  --line-soft:rgba(120,170,255,.14);
  --line-bright:rgba(120,205,255,.34);
  --brand-primary:#2E7CF6;
  --brand-cyan:#35E0D6;
  --brand-amber:#FFB13D;
  --brand-violet:#7A5CFF;
  --text-1:#EAF2FF;
  --text-2:#A9BBD8;
  --text-3:#6E82A6;
  --danger:#FF5A6E;
  --success:#35D07F;
  --r-card:18px;
  --r-img:14px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow-card:0 24px 60px -30px rgba(0,0,0,.85);
  --shadow-sm:0 12px 32px -18px rgba(0,0,0,.7);
  --shadow-cyan:0 0 0 1px rgba(53,224,214,.35),0 14px 36px -14px rgba(53,224,214,.4);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","Barlow","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --head-h:76px;
  --gap:28px;
}

*,*::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:1.75;
  color:var(--text-1);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(120,205,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,205,255,.04) 1px,transparent 1px);
  background-size:52px 52px;
}
img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover}
a{color:var(--text-2);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand-cyan)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text-1)}
h1{font-size:clamp(30px,4.4vw,46px);line-height:1.2;font-weight:800}
h2{font-size:clamp(24px,2.6vw,34px)}
h3{font-size:21px}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-cyan);outline-offset:2px;border-radius:6px}

.wrap{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{padding:104px 0;position:relative;z-index:1}
.section--tight{padding:80px 0}
.section-alt{background:var(--bg-section)}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--brand-cyan);
  margin-bottom:12px;
  font-weight:600;
}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head p{color:var(--text-2);margin:14px 0 0;font-size:16px}
.glass{
  background:var(--bg-glass);
  border:1px solid var(--line-soft);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  position:relative;
  overflow:hidden;
}
.glass::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,rgba(120,205,255,.55),rgba(120,205,255,0));
}

/* 顶部公告 */
.announce{
  background:linear-gradient(90deg,rgba(46,124,246,.22),rgba(122,92,255,.16));
  border-bottom:1px solid var(--line-soft);
  font-size:14px;
}
.announce-inner{display:flex;align-items:center;gap:12px;min-height:44px;padding-top:6px;padding-bottom:6px}
.announce-tag{
  flex:none;
  font-size:12px;
  padding:2px 10px;
  border-radius:var(--r-pill);
  background:rgba(53,224,214,.16);
  border:1px solid var(--line-bright);
  color:var(--brand-cyan);
}
.announce p{margin:0;color:var(--text-2);font-size:14px;line-height:1.6}
.announce-close{
  margin-left:auto;
  flex:none;
  width:30px;height:30px;
  border-radius:50%;
  border:1px solid var(--line-soft);
  background:rgba(255,255,255,.03);
  color:var(--text-2);
  cursor:pointer;
  transition:all .18s var(--ease);
}
.announce-close:hover{color:var(--brand-cyan);border-color:var(--line-bright)}

/* 导航 */
.site-head{position:sticky;top:0;z-index:1040;transition:background .22s var(--ease)}
.nav-bar{
  background:rgba(6,10,22,.72);
  border-bottom:1px solid var(--line-soft);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-head.is-scrolled .nav-bar{
  background:rgba(6,10,22,.94);
  box-shadow:0 18px 40px -30px rgba(0,0,0,.95);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:var(--head-h)}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--text-1)}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  font-weight:800;
  font-size:18px;
  color:#04121F;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-primary));
  box-shadow:0 8px 22px -10px rgba(53,224,214,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.08em}
.nav-collapse{flex:1;justify-content:center}
.nav-list{display:flex;align-items:center;gap:6px;justify-content:center;flex-wrap:wrap}
.nav-item{
  display:inline-block;
  padding:9px 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--text-2);
  position:relative;
  transition:all .18s var(--ease);
}
.nav-item:hover{color:var(--text-1);background:rgba(120,205,255,.08)}
.nav-item.is-active{
  color:var(--text-1);
  background:rgba(53,224,214,.1);
  box-shadow:inset 0 0 0 1px rgba(53,224,214,.3);
}
.nav-item.is-active::after{
  content:"";
  position:absolute;
  left:50%;bottom:-2px;
  transform:translateX(-50%);
  width:22px;height:2px;
  border-radius:2px;
  background:var(--brand-cyan);
  box-shadow:0 0 12px rgba(53,224,214,.9);
}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line-bright);
  background:rgba(53,224,214,.08);
  color:var(--text-1);
  cursor:pointer;
}
.nav-right{display:flex;align-items:center;gap:12px;flex:none}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-soft);
  background:rgba(20,30,56,.6);
  color:var(--text-2);
  font-size:14px;
  cursor:pointer;
  transition:all .18s var(--ease);
}
.mega-trigger:hover,.mega-trigger[aria-expanded="true"]{
  color:var(--text-1);
  border-color:var(--line-bright);
  box-shadow:var(--shadow-sm);
}
.mega-trigger i{font-size:12px;transition:transform .18s var(--ease)}
.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg)}

/* Mega 面板 */
.dropdown-menu.mega-panel{
  width:800px;
  max-width:calc(100vw - 48px);
  padding:24px;
  margin-top:14px;
  border:1px solid var(--line-bright);
  border-radius:var(--r-card);
  background:var(--bg-glass-strong);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
  right:0;left:auto;
}
.dropdown-menu.mega-panel.show{animation:megaIn .18s var(--ease)}
@keyframes megaIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
.mega-grid{display:grid;grid-template-columns:1.1fr 1.2fr 1fr;gap:22px}
.mega-col h4{
  font-size:13px;
  letter-spacing:.1em;
  color:var(--text-3);
  font-weight:600;
  margin-bottom:12px;
}
.mega-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:9px 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--text-2);
  transition:all .18s var(--ease);
}
.mega-link:hover{background:rgba(53,224,214,.1);color:var(--text-1)}
.mega-link i{font-size:11px;opacity:.7}
.mega-post{
  display:block;
  padding:9px 12px;
  border-radius:10px;
  transition:background .18s var(--ease);
}
.mega-post span{display:block;font-size:14px;color:var(--text-1);line-height:1.5}
.mega-post em{font-style:normal;font-size:12px;color:var(--text-3)}
.mega-post:hover{background:rgba(120,205,255,.08)}
.mega-card{
  display:flex;align-items:center;gap:10px;
  padding:8px;
  border-radius:12px;
  border:1px solid var(--line-soft);
  margin-bottom:10px;
  background:rgba(10,16,36,.5);
  transition:all .18s var(--ease);
}
.mega-card img{width:56px;height:44px;border-radius:10px;flex:none}
.mega-card span{font-size:13px;color:var(--text-2)}
.mega-card:hover{border-color:var(--line-bright);transform:translateY(-2px)}
.mega-card:hover span{color:var(--text-1)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .18s var(--ease);
  min-height:44px;
}
.btn-main{
  color:#04121F;
  background:linear-gradient(90deg,var(--brand-primary),var(--brand-cyan));
  box-shadow:0 0 0 1px rgba(46,124,246,.45),0 10px 30px -8px rgba(46,124,246,.6);
}
.btn-main:hover{
  color:#04121F;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(53,224,214,.5),0 16px 38px -8px rgba(53,224,214,.6);
}
.btn-ghost{
  color:var(--text-1);
  border-color:var(--line-bright);
  background:rgba(53,224,214,.06);
}
.btn-ghost:hover{
  color:var(--text-1);
  background:rgba(53,224,214,.14);
  transform:translateY(-2px);
}
.btn-text{
  padding:8px 0;
  color:var(--brand-cyan);
  background:none;
  border:none;
  font-size:15px;
}
.btn-text i{transition:transform .18s var(--ease)}
.btn-text:hover{color:var(--text-1)}
.btn-text:hover i{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* 胶囊与徽章 */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  font-size:13px;
  border:1px solid var(--line-soft);
  background:rgba(120,170,255,.08);
  color:var(--text-2);
}
.pill-cyan{border-color:rgba(53,224,214,.4);background:rgba(53,224,214,.12);color:var(--brand-cyan)}
.pill-amber{border-color:rgba(255,177,61,.4);background:rgba(255,177,61,.12);color:var(--brand-amber)}
.pill-ok{border-color:rgba(53,208,127,.4);background:rgba(53,208,127,.12);color:var(--success)}
.pill-warn{border-color:rgba(255,90,110,.4);background:rgba(255,90,110,.12);color:var(--danger)}

/* Hero-lite */
.hero-lite{
  position:relative;
  min-height:340px;
  display:flex;
  align-items:center;
  overflow:hidden;
  border-bottom:1px solid var(--line-soft);
}
.hero-lite-bg{
  position:absolute;inset:0;
  background-size:cover;
  background-position:center;
  transform:scale(1.02);
}
.hero-lite-mask{
  position:absolute;inset:0;
  background:
    radial-gradient(600px 300px at 12% 20%,rgba(53,224,214,.16),transparent 65%),
    radial-gradient(520px 280px at 88% 80%,rgba(122,92,255,.14),transparent 65%),
    linear-gradient(90deg,rgba(6,10,22,.95),rgba(6,10,22,.72));
}
.hero-lite-inner{padding-top:64px;padding-bottom:64px;position:relative;z-index:2}
.crumbs{
  display:flex;align-items:center;gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--brand-cyan)}
.crumbs i{font-size:10px;opacity:.7}
.crumbs .current{color:var(--brand-cyan)}
.hero-lite-card{
  max-width:720px;
  padding:34px 34px 30px;
  background:rgba(10,16,36,.68);
  border:1px solid var(--line-bright);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.hero-lite-card h1{margin-bottom:14px}
.hero-lite-card p{color:var(--text-2);font-size:16px;margin-bottom:22px;max-width:600px}

/* 瀑布卡 */
.waterfall{column-count:3;column-gap:var(--gap)}
.w-card{
  break-inside:avoid;
  width:100%;
  display:inline-block;
  margin:0 0 var(--gap);
  padding:22px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.w-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-bright);
  box-shadow:var(--shadow-card),var(--shadow-cyan);
}
.w-card h3{font-size:19px;margin:14px 0 10px}
.w-card p{color:var(--text-2);font-size:15px;margin-bottom:0}
.w-media{
  border-radius:var(--r-img);
  overflow:hidden;
  margin:-4px 0 4px;
}
.w-media img{width:100%;height:170px;transition:transform .3s var(--ease)}
.w-card:hover .w-media img{transform:scale(1.03)}
.w-card--tall .w-media img{height:210px}
.w-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.w-quote{
  border-left:3px solid var(--brand-cyan);
  padding:10px 0 10px 14px;
  background:rgba(53,224,214,.06);
  border-radius:0 10px 10px 0;
  font-size:14px;
  color:var(--text-2);
  margin:14px 0 0;
}

/* 对比矩阵 */
.matrix{
  border:1px solid var(--line-soft);
  border-radius:var(--r-card);
  background:var(--bg-glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.matrix-head,.matrix-row{
  display:grid;
  grid-template-columns:1fr 1.5fr 1.2fr .9fr;
  gap:16px;
  align-items:center;
  padding:18px 24px;
}
.matrix-head{
  background:rgba(120,170,255,.08);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--text-3);
  border-bottom:1px solid var(--line-soft);
}
.matrix-row{border-bottom:1px solid var(--line-soft);transition:background .18s var(--ease)}
.matrix-row:last-child{border-bottom:none}
.matrix-row:hover{background:rgba(53,224,214,.05)}
.matrix-row span{font-size:14px;color:var(--text-2)}
.matrix-row .m-name{color:var(--text-1);font-weight:600;font-size:15px}
.matrix-row .m-pill{justify-self:start}

/* 数据卡 */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.stat-card{padding:30px 26px;transition:transform .2s var(--ease),border-color .2s var(--ease)}
.stat-card:hover{transform:translateY(-4px);border-color:var(--line-bright)}
.stat-num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:clamp(38px,4vw,52px);
  font-weight:800;
  line-height:1;
  color:var(--text-1);
  display:flex;align-items:baseline;gap:6px;
}
.stat-num span{font-size:16px;font-weight:600;color:var(--text-3)}
.stat-card p{color:var(--text-2);font-size:14px;margin:14px 0 0}
.stat-card.is-amber{
  border-color:rgba(255,177,61,.35);
  box-shadow:var(--shadow-card),0 0 0 1px rgba(255,177,61,.22),0 18px 42px -22px rgba(255,177,61,.6);
}
.stat-card.is-amber .stat-num{color:var(--brand-amber)}

/* 快答卡 */
.qa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.qa-card{padding:26px 26px 24px;transition:transform .2s var(--ease),border-color .2s var(--ease)}
.qa-card:hover{transform:translateY(-4px);border-color:var(--line-bright)}
.qa-card h3{font-size:18px;margin-bottom:12px;display:flex;gap:10px;align-items:flex-start}
.qa-card h3 i{color:var(--brand-cyan);font-size:16px;margin-top:5px}
.qa-card p{color:var(--text-2);font-size:15px;margin:0}

/* CTA */
.cta-band{padding:96px 0}
.cta-panel{
  padding:56px 48px;
  text-align:center;
  background:
    radial-gradient(560px 260px at 20% 10%,rgba(53,224,214,.18),transparent 70%),
    radial-gradient(520px 260px at 84% 90%,rgba(122,92,255,.16),transparent 70%),
    var(--bg-glass-strong);
  border-color:var(--line-bright);
}
.cta-panel h2{margin-bottom:14px}
.cta-panel p{color:var(--text-2);max-width:640px;margin:0 auto 26px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-note{color:var(--text-3) !important;font-size:13px;margin:22px auto 0 !important}

/* 页脚 */
.site-foot{
  border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(10,16,36,.75),rgba(6,10,22,.98));
  padding:70px 0 26px;
  position:relative;
  z-index:1;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:var(--gap)}
.foot-col h4{font-size:15px;margin-bottom:18px}
.foot-col ul li{font-size:14px;color:var(--text-2);margin-bottom:10px;line-height:1.7}
.foot-col ul li a{font-size:14px}
.foot-brand .brand{margin-bottom:16px}
.foot-desc{color:var(--text-2);font-size:14px;max-width:330px;margin-bottom:18px}
.foot-social{display:flex;gap:10px}
.foot-social a{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid var(--line-soft);
  background:rgba(20,30,56,.6);
  color:var(--text-2);
  transition:all .18s var(--ease);
}
.foot-social a:hover{border-color:var(--line-bright);color:var(--brand-cyan);transform:translateY(-2px)}
.foot-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line-soft);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
}
.foot-bottom a{color:var(--text-3)}

/* 回到顶部 */
.to-top{
  position:fixed;
  right:24px;bottom:24px;
  width:48px;height:48px;
  border-radius:50%;
  border:1px solid var(--line-bright);
  background:rgba(20,30,56,.8);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  color:var(--text-1);
  display:grid;place-items:center;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:all .22s var(--ease);
  z-index:1030;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--brand-cyan);border-color:var(--brand-cyan);box-shadow:var(--shadow-cyan)}

/* 响应式 */
@media (max-width:1199px){
  .waterfall{column-count:2}
  .nav-item{padding:8px 11px;font-size:14px}
}
@media (max-width:991px){
  :root{--head-h:66px}
  .section{padding:72px 0}
  .section--tight{padding:60px 0}
  .nav-toggle{display:inline-grid;place-items:center}
  .nav-collapse{
    position:absolute;
    left:16px;right:16px;
    top:calc(var(--head-h) + 8px);
    padding:16px;
    border-radius:var(--r-card);
    border:1px solid var(--line-bright);
    background:var(--bg-glass-strong);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    box-shadow:var(--shadow-card);
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-item{display:block;padding:12px 14px;border-radius:12px}
  .nav-item.is-active::after{display:none}
  .nav-right{margin-left:auto}
  .mega-trigger{padding:10px 12px;font-size:13px}
  .dropdown-menu.mega-panel{
    position:static !important;
    width:100%;
    max-width:100%;
    margin-top:10px;
    transform:none !important;
  }
  .mega-grid{grid-template-columns:1fr}
  .hero-lite{min-height:300px}
  .hero-lite-inner{padding-top:48px;padding-bottom:48px}
  .hero-lite-card{padding:28px 24px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .qa-grid{grid-template-columns:1fr}
  .matrix-head,.matrix-row{grid-template-columns:1fr 1.2fr 1fr .8fr;padding:16px 18px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-panel{padding:44px 28px}
}
@media (max-width:767px){
  .wrap{padding:0 16px}
  .section{padding:56px 0}
  .waterfall{column-count:1}
  .stat-grid{grid-template-columns:1fr}
  .announce-inner{align-items:flex-start}
  .announce p{font-size:13px}
  .matrix-head{display:none}
  .matrix-row{grid-template-columns:1fr auto;row-gap:6px;padding:16px}
  .matrix-row span:nth-child(2),.matrix-row span:nth-child(3){grid-column:1 / -1}
  .matrix-row .m-pill{grid-row:1;grid-column:2;justify-self:end}
  .matrix{border-radius:16px}
  .hero-lite{min-height:auto}
  .hero-lite-card h1{font-size:clamp(24px,7vw,30px)}
  .cta-band{padding:64px 0}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:6px}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
  .w-card:hover,.stat-card:hover,.qa-card:hover,.btn-main:hover,.btn-ghost:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --bg-page:#060A16;
  --bg-section:#0A1024;
  --bg-glass:rgba(20,30,56,.58);
  --bg-glass-strong:rgba(26,38,68,.78);
  --line-soft:rgba(120,170,255,.14);
  --line-bright:rgba(120,205,255,.34);
  --brand-primary:#2E7CF6;
  --brand-cyan:#35E0D6;
  --brand-amber:#FFB13D;
  --brand-violet:#7A5CFF;
  --text-1:#EAF2FF;
  --text-2:#A9BBD8;
  --text-3:#6E82A6;
  --danger:#FF5A6E;
  --success:#35D07F;
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:12px;
  --shadow-card:0 12px 32px -18px rgba(0,0,0,.7);
  --shadow-deep:0 24px 60px -30px rgba(0,0,0,.85);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Inter","Barlow","PingFang SC","Microsoft YaHei",system-ui,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:1.75;
  color:var(--text-1);
  background-color:var(--bg-page);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(120,170,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,170,255,.04) 1px,transparent 1px);
  background-size:72px 72px;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);}
a:hover{color:var(--brand-cyan);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand-cyan);outline-offset:2px;}
.site-head,.page-main,.site-foot{position:relative;z-index:1;}
[id]{scroll-margin-top:110px;}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-head{position:sticky;top:0;z-index:1030;}
.announce{
  background:linear-gradient(90deg,rgba(46,124,246,.20),rgba(53,224,214,.10) 60%,rgba(122,92,255,.14));
  border-bottom:1px solid var(--line-soft);
  font-size:13px;
}
.announce-inner{display:flex;align-items:center;gap:12px;min-height:40px;padding-top:6px;padding-bottom:6px;}
.announce-tag{
  flex:0 0 auto;
  padding:2px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  color:#1B1204;
  background:linear-gradient(90deg,var(--brand-amber),#FFD27A);
}
.announce p{margin:0;flex:1 1 auto;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.announce-close{
  flex:0 0 auto;
  width:26px;height:26px;
  display:grid;place-items:center;
  border:1px solid var(--line-soft);
  border-radius:8px;
  background:rgba(120,170,255,.06);
  color:var(--text-3);
  font-size:12px;
  cursor:pointer;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.announce-close:hover{color:var(--brand-cyan);border-color:var(--line-bright);}
.nav-bar{
  position:relative;
  background:rgba(8,13,28,.74);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
  transition:background-color .2s var(--ease),box-shadow .2s var(--ease);
}
.site-head.is-scrolled .nav-bar{background:rgba(6,10,22,.94);box-shadow:0 14px 34px -24px rgba(0,0,0,.95);}
.nav-inner{display:flex;align-items:center;gap:18px;min-height:76px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  font-weight:800;
  font-size:18px;
  color:#04101F;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-primary));
  box-shadow:0 10px 24px -12px rgba(46,124,246,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.02em;color:var(--text-1);}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.16em;color:var(--text-3);}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-item{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:10px;
  font-size:15px;
  color:var(--text-2);
}
.nav-item:hover{color:var(--text-1);background:rgba(120,170,255,.08);}
.nav-item.is-active{color:#fff;background:rgba(53,224,214,.10);}
.nav-item.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand-cyan),var(--brand-primary));
  box-shadow:0 0 12px rgba(53,224,214,.85);
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  margin-left:auto;
  border-radius:12px;
  border:1px solid var(--line-soft);
  background:rgba(120,170,255,.07);
  color:var(--text-1);
  cursor:pointer;
  font-size:17px;
}
.nav-toggle:hover{border-color:var(--line-bright);color:var(--brand-cyan);}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 16px;
  border-radius:999px;
  border:1px solid var(--line-soft);
  background:rgba(120,170,255,.06);
  color:var(--text-2);
  font-size:14px;
  cursor:pointer;
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.mega-trigger:hover,.mega-trigger[aria-expanded="true"]{color:var(--text-1);border-color:var(--line-bright);background:rgba(53,224,214,.10);}
.mega-trigger i{font-size:11px;transition:transform .18s var(--ease);}
.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg);}
.dropdown-menu.mega-panel{
  right:0;left:auto;
  width:780px;
  max-width:calc(100vw - 32px);
  margin-top:12px;
  padding:20px;
  border-radius:18px;
  border:1px solid var(--line-bright);
  background:rgba(10,16,36,.97);
  box-shadow:var(--shadow-deep);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.dropdown-menu.mega-panel.show{animation:megaIn .18s var(--ease);}
@keyframes megaIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}
.mega-grid{display:grid;grid-template-columns:1fr 1.15fr 1fr;gap:20px;}
.mega-col h4{font-size:12px;letter-spacing:.12em;font-weight:600;color:var(--text-3);margin-bottom:12px;}
.mega-link{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--text-2);
}
.mega-link:hover{background:rgba(53,224,214,.08);color:var(--text-1);}
.mega-link i{font-size:11px;opacity:.55;}
.mega-post{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--text-2);}
.mega-post:hover{background:rgba(120,170,255,.08);color:var(--text-1);}
.mega-post em{font-style:normal;font-size:12px;color:var(--text-3);}
.mega-card{
  display:flex;align-items:center;gap:10px;
  padding:9px;margin-bottom:10px;
  border-radius:12px;
  border:1px solid var(--line-soft);
  background:rgba(120,170,255,.05);
  font-size:14px;color:var(--text-2);
}
.mega-card:hover{color:var(--text-1);border-color:var(--line-bright);background:rgba(53,224,214,.08);}
.mega-card img{width:54px;height:42px;flex:0 0 54px;border-radius:9px;}

/* ============ 按钮体系 ============ */
.btn-glow{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 24px;
  border:0;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;
  color:#04101F;
  background:linear-gradient(90deg,var(--brand-primary),var(--brand-cyan));
  box-shadow:0 0 0 1px rgba(46,124,246,.45),0 10px 30px -8px rgba(46,124,246,.6);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease);
}
.btn-glow:hover{
  color:#04101F;
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(53,224,214,.5),0 18px 42px -10px rgba(46,124,246,.78);
}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line-bright);
  background:rgba(53,224,214,.04);
  color:var(--text-1);
  font-size:15px;font-weight:600;
  transition:transform .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease);
}
.btn-ghost:hover{color:#fff;background:rgba(53,224,214,.14);transform:translateY(-2px);}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--brand-cyan);}
.btn-text i{font-size:12px;transition:transform .18s var(--ease);}
.btn-text:hover i{transform:translateX(3px);}
.btn-glow:focus-visible,.btn-ghost:focus-visible,.btn-text:focus-visible,
.nav-item:focus-visible,.mega-trigger:focus-visible,.nav-toggle:focus-visible{outline:2px solid var(--brand-cyan);outline-offset:2px;}

/* ============ 通用板块 ============ */
.section{padding:96px 0;position:relative;}
.section-alt{background:var(--bg-section);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.sec-head{max-width:760px;margin-bottom:40px;}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.14em;font-weight:600;color:var(--brand-cyan);margin-bottom:12px;}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;}
.sec-sub{margin-top:12px;color:var(--text-2);font-size:16px;}

/* ============ 内页横幅 ============ */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line-soft);}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.page-hero .hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(6,10,22,.95) 0%,rgba(6,10,22,.82) 46%,rgba(6,10,22,.62) 100%);
}
.page-hero .hero-glow{
  position:absolute;right:-10%;top:-30%;
  width:640px;height:640px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,214,.18),rgba(53,224,214,0) 68%);
  pointer-events:none;
}
.page-hero .hero-glow-2{
  position:absolute;left:-16%;bottom:-42%;
  width:560px;height:560px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(122,92,255,.16),rgba(122,92,255,0) 70%);
  pointer-events:none;
}
.hero-body{position:relative;z-index:2;padding:56px 0 64px;min-height:320px;display:flex;flex-direction:column;justify-content:center;}
.crumb{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand-cyan);}
.crumb i{font-size:10px;opacity:.6;}
.crumb span{color:var(--brand-cyan);max-width:220px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.hero-card{
  position:relative;
  max-width:760px;
  padding:32px 34px;
  border-radius:var(--radius-card);
  border:1px solid var(--line-soft);
  background:var(--bg-glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-deep);
  overflow:hidden;
}
.hero-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(53,224,214,.8),rgba(53,224,214,0));
}
.hero-card h1{font-size:clamp(30px,4.4vw,52px);line-height:1.2;font-weight:800;letter-spacing:-.01em;}
.hero-lead{margin-top:14px;color:var(--text-2);font-size:16.5px;max-width:620px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  border:1px solid var(--line-soft);
  background:rgba(120,170,255,.06);
  color:var(--text-2);
}
.pill i{font-size:11px;color:var(--brand-cyan);}
.pill.is-amber{border-color:rgba(255,177,61,.32);background:rgba(255,177,61,.10);color:#FFD8A0;}
.pill.is-amber i{color:var(--brand-amber);}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 玩法方向卡 ============ */
.type-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.type-card{
  position:relative;
  padding:26px;
  border-radius:var(--radius-card);
  border:1px solid var(--line-soft);
  background:var(--bg-glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.type-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(53,224,214,.55),rgba(53,224,214,0));
}
.type-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-bright);
  box-shadow:0 20px 44px -22px rgba(0,0,0,.92),0 0 26px -8px rgba(53,224,214,.28);
}
.type-icon{
  width:44px;height:44px;
  display:grid;place-items:center;
  margin-bottom:16px;
  border-radius:12px;
  border:1px solid var(--line-bright);
  background:rgba(53,224,214,.10);
  color:var(--brand-cyan);
  font-size:18px;
}
.type-card h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.type-card p{font-size:15px;color:var(--text-2);}

/* ============ 上手流程时间线 ============ */
.timeline{position:relative;max-width:920px;margin:0 auto;}
.timeline::before{
  content:"";position:absolute;left:23px;top:16px;bottom:16px;width:1px;
  background:linear-gradient(180deg,rgba(53,224,214,.55),rgba(46,124,246,.16));
}
.tl-item{position:relative;display:flex;gap:20px;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-num{
  position:relative;z-index:1;
  flex:0 0 48px;width:48px;height:48px;
  display:grid;place-items:center;
  border-radius:14px;
  border:1px solid var(--line-bright);
  background:rgba(10,16,36,.94);
  color:var(--brand-cyan);
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-weight:800;
  font-size:17px;
  box-shadow:0 0 0 6px rgba(6,10,22,.95),0 10px 26px -14px rgba(53,224,214,.6);
}
.tl-body{
  flex:1 1 auto;
  padding:18px 22px;
  border-radius:14px;
  border:1px solid var(--line-soft);
  background:var(--bg-glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.tl-body:hover{transform:translateX(4px);border-color:var(--line-bright);}
.tl-body h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.tl-body p{font-size:15px;color:var(--text-2);}

/* ============ 小结区 ============ */
.summary-shell{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start;}
.summary-main{
  position:relative;
  padding:34px;
  border-radius:var(--radius-card);
  border:1px solid var(--line-soft);
  background:var(--bg-glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-deep);
  overflow:hidden;
}
.summary-main::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(255,177,61,.6),rgba(255,177,61,0));
}
.summary-main h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;}
.summary-main > p{margin-top:12px;color:var(--text-2);font-size:15.5px;}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{position:relative;padding-left:26px;font-size:15.5px;color:var(--text-2);}
.check-list li::before{
  content:"";position:absolute;left:6px;top:.66em;
  width:8px;height:8px;border-radius:50%;
  background:var(--brand-cyan);
  box-shadow:0 0 10px rgba(53,224,214,.85);
}
.summary-main .btn-text{margin-top:24px;}
.summary-side{display:grid;gap:16px;}
.summary-figure{
  margin:0;
  padding:12px;
  border-radius:var(--radius-card);
  border:1px solid var(--line-soft);
  background:var(--bg-glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.summary-figure img{width:100%;aspect-ratio:16/10;border-radius:12px;}
.summary-figure figcaption{margin-top:10px;font-size:13px;color:var(--text-3);text-align:center;}
.stat-card{
  display:flex;align-items:center;gap:10px;
  padding:20px 22px;
  border-radius:16px;
  border:1px solid var(--line-soft);
  background:var(--bg-glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.stat-card:hover{border-color:var(--line-bright);transform:translateY(-3px);}
.stat-val{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:34px;font-weight:800;line-height:1;}
.stat-unit{font-size:13px;color:var(--text-3);}
.stat-label{margin-left:auto;font-size:14px;color:var(--text-2);text-align:right;}
.stat-card.is-amber{border-color:rgba(255,177,61,.30);background:rgba(255,177,61,.07);}
.stat-card.is-amber .stat-val{color:var(--brand-amber);}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-acc .accordion-item{
  margin-bottom:14px;
  border:1px solid var(--line-soft);
  border-radius:14px;
  background:var(--bg-glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow:hidden;
}
.faq-acc .accordion-item:hover{border-color:var(--line-bright);}
.faq-acc .accordion-button{
  padding:20px 22px;
  font-size:17px;
  font-weight:700;
  line-height:1.5;
  color:var(--text-1);
  background:transparent;
  box-shadow:none;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand-cyan);background:rgba(53,224,214,.07);}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand-cyan);outline-offset:-2px;}
.faq-acc .accordion-button::after{
  width:16px;height:16px;background-size:16px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2335E0D6'%3E%3Cpath d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
  transition:transform .18s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(-180deg);}
.faq-acc .accordion-body{padding:2px 22px 22px;font-size:15px;color:var(--text-2);}

/* ============ 结尾 CTA ============ */
.cta-band{padding:96px 0;}
.cta-panel{
  position:relative;
  border-radius:24px;
  border:1px solid var(--line-bright);
  overflow:hidden;
  box-shadow:var(--shadow-deep);
}
.cta-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  filter:saturate(.85);
}
.cta-panel::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(6,10,22,.95) 0%,rgba(6,10,22,.80) 52%,rgba(122,92,255,.24) 100%);
}
.cta-glow{
  position:absolute;right:-8%;bottom:-40%;
  width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(53,224,214,.18),rgba(53,224,214,0) 70%);
  z-index:1;
}
.cta-inner{position:relative;z-index:2;padding:56px;max-width:760px;}
.cta-inner h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;}
.cta-inner > p{margin-top:14px;color:var(--text-2);font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-panel .btn-glow{
  box-shadow:0 0 0 1px rgba(46,124,246,.45),0 10px 30px -8px rgba(46,124,246,.6),0 0 36px -6px rgba(255,177,61,.42);
}
.cta-note{margin-top:18px;font-size:13.5px;color:var(--text-3);}
.cta-note a{color:var(--text-2);text-decoration:underline;text-decoration-color:rgba(53,224,214,.45);}
.cta-note a:hover{color:var(--brand-cyan);}

/* ============ 页脚 ============ */
.site-foot{
  background:var(--bg-section);
  border-top:1px solid var(--line-soft);
  padding:72px 0 28px;
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.foot-col h4{font-size:15px;font-weight:700;margin-bottom:16px;}
.foot-col ul{display:grid;gap:10px;}
.foot-col ul li{font-size:14.5px;color:var(--text-2);}
.foot-col a{color:var(--text-2);}
.foot-col a:hover{color:var(--brand-cyan);}
.foot-desc{margin-top:16px;font-size:14.5px;line-height:1.85;color:var(--text-2);}
.foot-social{display:flex;gap:10px;margin-top:18px;}
.foot-social a{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid var(--line-soft);
  background:var(--bg-glass);
  color:var(--text-2);
}
.foot-social a:hover{color:var(--brand-cyan);border-color:var(--line-bright);transform:translateY(-2px);}
.foot-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ============ 回到顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1040;
  width:46px;height:46px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line-soft);
  background:rgba(20,30,56,.78);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  color:var(--text-2);
  cursor:pointer;
  opacity:0;visibility:hidden;
  transition:opacity .2s var(--ease),visibility .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;}
.to-top:hover{color:var(--brand-cyan);border-color:var(--line-bright);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .section{padding:80px 0;}
  .cta-band{padding:80px 0;}
  .dropdown-menu.mega-panel{width:720px;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .cta-band{padding:72px 0;}
  .nav-toggle{display:inline-flex;}
  .nav-right{margin-left:0;}
  .mega-wrap{display:none;}
  .nav-collapse{
    position:absolute;
    top:100%;left:0;right:0;
    max-height:72vh;
    overflow:auto;
    padding:12px 20px 20px;
    background:rgba(8,13,28,.98);
    border-bottom:1px solid var(--line-soft);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:6px;}
  .nav-item{height:46px;justify-content:flex-start;padding:0 14px;border-radius:12px;background:rgba(120,170,255,.05);}
  .nav-item.is-active::after{display:none;}
  .nav-item.is-active{background:rgba(53,224,214,.12);box-shadow:inset 3px 0 0 var(--brand-cyan);}
  .type-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .summary-shell{grid-template-columns:1fr;gap:20px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .hero-body{padding:48px 0 56px;min-height:280px;}
  .cta-inner{padding:44px;}
}
@media (max-width:767.98px){
  .wrap{padding:0 16px;}
  .announce p{font-size:12.5px;}
  .hero-card{padding:26px 22px;}
  .hero-lead{font-size:15.5px;}
  .sec-head{margin-bottom:32px;}
  .timeline::before{left:19px;}
  .timeline{gap:0;}
  .tl-item{gap:14px;}
  .tl-num{flex:0 0 40px;width:40px;height:40px;font-size:15px;box-shadow:0 0 0 5px rgba(6,10,22,.95);}
  .tl-body{padding:16px 18px;}
  .summary-main{padding:26px 22px;}
  .stat-card{padding:16px 18px;}
  .stat-val{font-size:28px;}
  .cta-inner{padding:36px 24px;}
}
@media (max-width:575.98px){
  .section{padding:56px 0;}
  .cta-band{padding:56px 0;}
  .type-grid{grid-template-columns:1fr;gap:16px;}
  .foot-grid{grid-template-columns:1fr;gap:26px;}
  .foot-bottom{flex-direction:column;gap:8px;}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%;justify-content:center;}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%;justify-content:center;}
  .stat-card{flex-wrap:wrap;}
  .stat-label{margin-left:0;width:100%;text-align:left;}
  .to-top{right:16px;bottom:18px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .type-card:hover,.tl-body:hover,.stat-card:hover,.btn-glow:hover,.btn-ghost:hover{transform:none;}
  .foot-social a:hover{transform:none;}
}