/* roulang page: index */
:root{
  --bg:#070b18;
  --bg-soft:#0b1226;
  --bg-elev:#101a35;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --text:#eaf0ff;
  --muted:#9aa6c8;
  --accent:#ffb400;
  --accent-2:#ffd166;
  --cyan:#38e0f0;
  --deep:#1a1f3d;
  --radius:14px;
  --radius-lg:22px;
  --radius-pill:999px;
  --shadow:0 20px 45px rgba(2,6,23,.55);
  --shadow-soft:0 10px 26px rgba(2,6,23,.35);
  --glow:0 12px 34px rgba(255,180,0,.26);
  --space:88px;
  --font:"PingFang SC","Hiragino Sans GB","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);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1000px 520px at 12% -8%, rgba(56,224,240,.12), transparent 62%),
    radial-gradient(900px 500px at 88% 4%, rgba(255,180,0,.12), transparent 60%),
    linear-gradient(180deg,#070b18 0%,#0a1022 48%,#070b18 100%);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--accent-2);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover,a:focus{color:var(--accent)}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:800;line-height:1.28;letter-spacing:.2px;color:#fff}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
.section{padding:var(--space) 0;position:relative;border-top:1px solid var(--line-soft)}
.section--alt{background:linear-gradient(180deg,rgba(16,26,53,.92) 0%,rgba(9,14,32,.92) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.05rem)}
.section-head p{color:var(--muted);font-size:1rem;margin-bottom:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;margin-bottom:14px;border-radius:var(--radius-pill);font-size:.78rem;font-weight:700;letter-spacing:1.4px;color:var(--accent-2);background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.32)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,24,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand:hover{color:#fff}
.brand-mark{width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;border-radius:13px;font-size:1.15rem;font-weight:900;color:#1a1f3d;background:linear-gradient(135deg,#ffd35c,#ffa600);box-shadow:var(--glow)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:1.06rem;letter-spacing:.5px}
.brand-text small{font-size:.7rem;color:var(--muted);letter-spacing:.6px;font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;display:block;padding:9px 14px;border-radius:var(--radius-pill);font-size:.94rem;font-weight:600;color:#c8d2f0}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.active{color:#fff;background:rgba(255,180,0,.14);box-shadow:inset 0 0 0 1px rgba(255,180,0,.34)}
.nav-link.active::after{content:"";position:absolute;left:50%;bottom:4px;width:16px;height:2px;transform:translateX(-50%);border-radius:2px;background:var(--accent)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);cursor:pointer;padding:0;place-items:center;gap:5px;flex-direction:column}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#dfe6ff;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius-pill);font-weight:800;font-size:.96rem;letter-spacing:.4px;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;text-align:center}
.btn-gold{color:#20180a;background:linear-gradient(135deg,#ffd35c 0%,#ffb400 55%,#ff9500 100%);box-shadow:var(--glow)}
.btn-gold:hover,.btn-gold:focus{color:#1a1200;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,209,102,.55),0 18px 40px rgba(255,166,0,.42)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{color:#e7eeff;background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2)}
.btn-ghost:hover,.btn-ghost:focus{color:#fff;background:rgba(255,255,255,.12);border-color:rgba(255,180,0,.5);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:.88rem}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:78px 0 64px;border-top:0}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.24;filter:saturate(.9)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,11,24,.96) 0%,rgba(7,11,24,.78) 46%,rgba(7,11,24,.9) 100%);pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center}
.pill{display:inline-flex;align-items:center;gap:9px;padding:7px 16px;margin-bottom:18px;border-radius:var(--radius-pill);font-size:.8rem;font-weight:700;letter-spacing:.8px;color:#d8e4ff;background:rgba(56,224,240,.1);border:1px solid rgba(56,224,240,.36)}
.pill i{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);font-style:normal}
.hero h1{font-size:clamp(1.85rem,3.6vw,2.85rem);letter-spacing:.4px;margin-bottom:18px}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,#ffd166,#ffb400 60%,#ff8a00);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#c3cdeb;font-size:1.01rem;line-height:1.9;max-width:620px;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:.86rem;color:var(--muted)}
.hero-meta li{display:flex;align-items:center;gap:8px}
.hero-meta li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:.9}

.hero-stage{display:grid;gap:18px;justify-items:end}
.phone-card{position:relative;width:100%;max-width:318px;aspect-ratio:9/16;border-radius:28px;overflow:hidden;border:1px solid rgba(255,255,255,.18);background:linear-gradient(180deg,rgba(26,31,61,.95),rgba(7,11,24,.98));box-shadow:var(--shadow),0 0 70px rgba(56,224,240,.16)}
.phone-card img{width:100%;height:100%;object-fit:cover;opacity:.9}
.phone-card::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:86px;height:6px;border-radius:0 0 8px 8px;background:rgba(255,255,255,.28);z-index:3}
.phone-overlay{position:absolute;inset:auto 0 0 0;padding:18px 18px 20px;background:linear-gradient(180deg,transparent 0%,rgba(5,9,22,.86) 46%,rgba(5,9,22,.97) 100%);z-index:2}
.phone-overlay .tagline{display:inline-block;padding:4px 12px;margin-bottom:10px;border-radius:var(--radius-pill);font-size:.72rem;font-weight:700;color:#0d1327;background:linear-gradient(135deg,#38e0f0,#7af0ff)}
.phone-overlay h3{font-size:1.02rem;margin-bottom:6px}
.phone-overlay p{font-size:.8rem;color:#b9c5e6;margin:0}
.countdown-card{width:100%;max-width:318px;padding:18px 20px;border-radius:var(--radius-lg);border:1px solid rgba(255,180,0,.34);background:linear-gradient(135deg,rgba(255,180,0,.14),rgba(255,255,255,.04));box-shadow:var(--shadow-soft)}
.countdown-card .cd-label{display:block;font-size:.78rem;letter-spacing:1px;color:#ffe0a1;font-weight:700;margin-bottom:8px}
.cd-clock{display:flex;gap:8px;align-items:center;font-variant-numeric:tabular-nums}
.cd-clock span{flex:1;text-align:center;padding:8px 4px;border-radius:10px;background:rgba(7,11,24,.66);border:1px solid rgba(255,255,255,.12);font-size:1.22rem;font-weight:800;color:#fff}
.cd-clock b{color:var(--accent);font-weight:800}
.countdown-card small{display:block;margin-top:8px;font-size:.74rem;color:var(--muted)}

.spec-strip{margin-top:46px;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:var(--line-soft)}
.spec-item{padding:20px 22px;background:rgba(10,16,34,.84);backdrop-filter:blur(10px)}
.spec-item dt{font-size:.76rem;letter-spacing:1px;color:var(--muted);margin-bottom:6px}
.spec-item dd{margin:0;font-size:1.12rem;font-weight:800;color:#fff}
.spec-item dd span{color:var(--accent);font-size:.82rem;font-weight:600;margin-left:4px}

/* ---------- cards & grids ---------- */
.grid-x > .cell{display:flex}
.card{position:relative;display:flex;flex-direction:column;width:100%;padding:26px 24px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow-soft);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background .25s ease}
.card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.4);background:var(--panel-2);box-shadow:0 22px 46px rgba(2,6,23,.55),0 0 0 1px rgba(255,180,0,.16)}
.card h3{font-size:1.08rem;margin-bottom:10px}
.card p{font-size:.92rem;color:var(--muted);margin-bottom:0}
.card-icon{width:44px;height:44px;display:grid;place-items:center;margin-bottom:16px;border-radius:12px;font-size:1.1rem;font-weight:900;color:#1a1f3d;background:linear-gradient(135deg,#ffd35c,#ffa600);box-shadow:0 8px 20px rgba(255,166,0,.28)}
.card-cyan .card-icon{background:linear-gradient(135deg,#8df2ff,#38e0f0);box-shadow:0 8px 20px rgba(56,224,240,.28)}
.card-violet .card-icon{background:linear-gradient(135deg,#c3b5ff,#8b7bff);box-shadow:0 8px 20px rgba(139,123,255,.3)}
.tag{display:inline-block;padding:4px 11px;border-radius:var(--radius-pill);font-size:.74rem;font-weight:700;letter-spacing:.4px;color:#ffe0a1;background:rgba(255,180,0,.13);border:1px solid rgba(255,180,0,.3)}
.tag-cyan{color:#b6f4ff;background:rgba(56,224,240,.12);border-color:rgba(56,224,240,.32)}

/* ---------- checklist ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.check-item{display:flex;gap:16px;padding:20px 22px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(255,255,255,.04);transition:border-color .22s ease,transform .22s ease,background .22s ease}
.check-item:hover{border-color:rgba(56,224,240,.42);background:rgba(56,224,240,.05);transform:translateY(-3px)}
.check-num{flex:0 0 34px;width:34px;height:34px;display:grid;place-items:center;border-radius:10px;font-weight:800;font-size:.9rem;color:#0d1327;background:linear-gradient(135deg,#38e0f0,#8df2ff)}
.check-item h3{font-size:1rem;margin-bottom:6px}
.check-item p{font-size:.9rem;color:var(--muted);margin:0}

/* ---------- badge wall ---------- */
.badge-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.badge-chip{display:flex;align-items:flex-start;gap:14px;padding:20px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(140deg,rgba(255,255,255,.06),rgba(255,255,255,.02))}
.badge-mark{flex:0 0 40px;width:40px;height:40px;display:grid;place-items:center;border-radius:50%;font-size:.86rem;font-weight:900;color:var(--accent);border:1px solid rgba(255,180,0,.44);background:rgba(255,180,0,.1)}
.badge-chip strong{display:block;font-size:.98rem;color:#fff;margin-bottom:4px}
.badge-chip span{font-size:.84rem;color:var(--muted);line-height:1.6}

/* ---------- boundary split ---------- */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:start}
.split h2{font-size:clamp(1.5rem,2.4vw,2rem)}
.boundary-list{display:grid;gap:14px;margin-top:22px}
.boundary-list li{display:flex;gap:12px;font-size:.94rem;color:#c6d0ee}
.boundary-list li::before{content:"—";color:var(--accent);font-weight:800;flex:0 0 auto}
.notice-card{padding:28px;border-radius:var(--radius-lg);border:1px solid rgba(255,180,0,.32);background:linear-gradient(160deg,rgba(255,180,0,.13),rgba(255,255,255,.03));box-shadow:var(--shadow-soft)}
.notice-card h3{font-size:1.05rem;color:#ffe0a1;margin-bottom:12px}
.notice-card p{font-size:.9rem;color:#d6ddf3;margin:0}
.notice-card .divider{height:1px;background:rgba(255,255,255,.14);margin:18px 0}

/* ---------- channel matrix ---------- */
.channel-card{padding:26px 24px;border-radius:var(--radius-lg);border:1px solid var(--line);background:linear-gradient(165deg,rgba(26,31,61,.85),rgba(10,16,34,.9));display:flex;flex-direction:column;gap:12px;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;height:100%}
.channel-card:hover{transform:translateY(-5px);border-color:rgba(255,180,0,.5);box-shadow:0 24px 50px rgba(2,6,23,.6)}
.channel-card h3{font-size:1.14rem;margin:0}
.channel-card p{font-size:.9rem;color:var(--muted);margin:0}
.channel-link{display:inline-flex;align-items:center;gap:8px;margin-top:auto;font-size:.9rem;font-weight:700;color:var(--accent-2)}
.channel-link::after{content:"›";font-size:1.1rem;transition:transform .22s ease}
.channel-card:hover .channel-link::after{transform:translateX(4px)}
.channel-figure{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--line);aspect-ratio:16/9;background:#0a1022}
.channel-figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.channel-card:hover .channel-figure img{transform:scale(1.05)}

/* ---------- rail ---------- */
.rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(272px,1fr);gap:20px;overflow-x:auto;padding-bottom:12px;scroll-snap-type:x mandatory}
.rail::-webkit-scrollbar{height:8px}
.rail::-webkit-scrollbar-thumb{background:rgba(255,180,0,.4);border-radius:99px}
.rail::-webkit-scrollbar-track{background:rgba(255,255,255,.06);border-radius:99px}
.rail-card{scroll-snap-align:start;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:rgba(255,255,255,.04);transition:border-color .22s ease,transform .22s ease}
.rail-card:hover{border-color:rgba(56,224,240,.42);transform:translateY(-4px)}
.rail-card figure{margin:0;aspect-ratio:16/10;overflow:hidden;background:#0a1022}
.rail-card figure img{width:100%;height:100%;object-fit:cover}
.rail-body{padding:18px 20px 22px}
.rail-body h3{font-size:1rem;margin:10px 0 6px}
.rail-body p{font-size:.87rem;color:var(--muted);margin:0}

/* ---------- stats ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{padding:26px 22px;border-radius:var(--radius-lg);border:1px solid var(--line);background:linear-gradient(160deg,rgba(56,224,240,.09),rgba(255,255,255,.03));text-align:center}
.stat strong{display:block;font-size:2rem;line-height:1.1;font-weight:900;background:linear-gradient(120deg,#8df2ff,#38e0f0 50%,#ffd166);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:8px}
.stat span{font-size:.86rem;color:var(--muted)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.step{padding:28px 24px;border-radius:var(--radius-lg);border:1px solid var(--line);background:rgba(255,255,255,.04);position:relative;counter-increment:step}
.step::before{content:counter(step,decimal-leading-zero);display:block;font-size:1.6rem;font-weight:900;color:rgba(255,180,0,.55);margin-bottom:12px;letter-spacing:2px}
.step h3{font-size:1.02rem;margin-bottom:8px}
.step p{font-size:.9rem;color:var(--muted);margin:0}

/* ---------- changelog ---------- */
.changelog{border-left:2px solid rgba(255,180,0,.35);padding-left:26px;display:grid;gap:22px}
.log-item{position:relative}
.log-item::before{content:"";position:absolute;left:-33px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,180,0,.16)}
.log-item time{display:block;font-size:.78rem;letter-spacing:1px;color:var(--accent-2);font-weight:700;margin-bottom:4px}
.log-item strong{display:block;font-size:1rem;color:#fff;margin-bottom:4px}
.log-item p{font-size:.9rem;color:var(--muted);margin:0}

/* ---------- news ---------- */
.news-layout{display:grid;grid-template-columns:1.55fr .85fr;gap:30px;align-items:start}
.news-list{display:grid;gap:14px}
.news-item{display:flex;flex-direction:column;gap:10px;padding:20px 22px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(255,255,255,.04);transition:border-color .22s ease,transform .22s ease,background .22s ease}
.news-item:hover{border-color:rgba(255,180,0,.44);background:rgba(255,180,0,.06);transform:translateX(4px)}
.news-item h3{font-size:1.02rem;margin:0;color:#fff}
.news-item p{font-size:.88rem;color:var(--muted);margin:0}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:.78rem;color:var(--muted)}
.side-panel{padding:24px;border-radius:var(--radius-lg);border:1px solid var(--line);background:linear-gradient(165deg,rgba(26,31,61,.8),rgba(10,16,34,.92));box-shadow:var(--shadow-soft)}
.side-panel h3{font-size:1rem;margin-bottom:16px;color:#fff;display:flex;align-items:center;gap:8px}
.side-panel h3::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--accent)}
.side-list{display:grid;gap:14px}
.side-list a{display:block;padding-bottom:12px;border-bottom:1px dashed rgba(255,255,255,.1);font-size:.9rem;color:#d7e0f8;line-height:1.6}
.side-list a:last-child{border-bottom:0;padding-bottom:0}
.side-list a:hover{color:var(--accent-2)}
.side-list span{display:block;margin-top:4px;font-size:.76rem;color:var(--muted)}
.empty-state{padding:26px;border-radius:var(--radius);border:1px dashed rgba(255,255,255,.2);color:var(--muted);font-size:.92rem;background:rgba(255,255,255,.03)}

/* ---------- voices ---------- */
.voice{padding:26px 24px;border-radius:var(--radius-lg);border:1px solid var(--line);background:rgba(255,255,255,.04);display:flex;flex-direction:column;gap:14px;height:100%}
.voice p{font-size:.93rem;color:#d3dcf5;margin:0;line-height:1.8}
.voice .who{display:flex;align-items:center;gap:12px;margin-top:auto}
.who-avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:.9rem;color:#0d1327;background:linear-gradient(135deg,#ffd35c,#ffa600)}
.who strong{display:block;font-size:.9rem;color:#fff}
.who span{font-size:.76rem;color:var(--muted)}

/* ---------- topics ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.topic{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 22px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(255,255,255,.04);font-size:.94rem;font-weight:700;color:#e6ecff;transition:border-color .22s ease,background .22s ease,transform .22s ease}
.topic:hover{color:#fff;border-color:rgba(56,224,240,.42);background:rgba(56,224,240,.07);transform:translateY(-3px)}
.topic i{font-style:normal;font-size:.78rem;color:var(--muted);font-weight:600}

/* ---------- partners ---------- */
.partner-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.partner{padding:18px 12px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.035);text-align:center;font-size:.86rem;font-weight:700;color:#b9c5e6;transition:color .22s ease,border-color .22s ease}
.partner:hover{color:#fff;border-color:rgba(255,180,0,.42)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq-item{border-radius:var(--radius);border:1px solid var(--line);background:rgba(255,255,255,.04);overflow:hidden;transition:border-color .22s ease}
.faq-item[open]{border-color:rgba(255,180,0,.42);background:rgba(255,180,0,.05)}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 24px;font-weight:700;font-size:.98rem;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.3rem;color:var(--accent);line-height:1;transition:transform .22s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .answer{padding:0 24px 20px;font-size:.92rem;color:var(--muted);line-height:1.85}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;text-align:center;padding:calc(var(--space) + 10px) 0;background:radial-gradient(720px 320px at 50% 0,rgba(255,180,0,.2),transparent 68%),linear-gradient(180deg,rgba(16,26,53,.96),rgba(7,11,24,.98));border-top:1px solid var(--line)}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.3rem);margin-bottom:16px}
.cta-band p{color:#c3cdeb;max-width:660px;margin:0 auto 26px;font-size:1rem}

/* ---------- footer ---------- */
.site-footer{padding:60px 0 30px;background:#050914;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:40px;margin-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand strong{font-size:1.06rem;color:#fff}
.footer-text{font-size:.88rem;color:var(--muted);max-width:430px;line-height:1.85}
.footer-col h4{font-size:.92rem;color:#fff;margin-bottom:14px;letter-spacing:.6px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:.88rem;color:#a9b5d6}
.footer-col a:hover{color:var(--accent-2)}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);font-size:.8rem;color:#7f8bb0}
.footer-bottom .tip{color:#8e9ac0}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--space:64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-stage{justify-items:start}
  .phone-card,.countdown-card{max-width:340px}
  .spec-strip{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr}
  .badge-wall{grid-template-columns:repeat(2,1fr)}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .partner-wall{grid-template-columns:repeat(3,1fr)}
  .split{grid-template-columns:1fr;gap:28px}
  .news-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .main-nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:6px;padding:14px 22px 22px;background:rgba(6,10,22,.98);border-bottom:1px solid var(--line);box-shadow:0 24px 40px rgba(0,0,0,.5);display:none}
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 16px;border-radius:12px;font-size:.96rem}
  .nav-link.active::after{display:none}
  .header-actions .btn{display:none}
  .header-inner{min-height:66px}
}
@media (max-width:768px){
  :root{--space:52px}
  .hero{padding:52px 0 44px}
  .hero-lead{font-size:.95rem;line-height:1.85}
  .check-list{grid-template-columns:1fr}
  .badge-wall{grid-template-columns:1fr}
  .topic-grid{grid-template-columns:1fr}
  .partner-wall{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .hero-cta{flex-direction:column;align-items:stretch}
  .brand-text small{display:none}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .spec-strip{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .cd-clock span{font-size:1.02rem;padding:7px 2px}
  .card,.channel-card,.stat,.step{padding:20px 18px}
  .phone-card{max-width:100%}
  .countdown-card{max-width:100%}
  .faq-item summary{padding:16px 18px;font-size:.92rem}
  .faq-item .answer{padding:0 18px 18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
 --bg:#070b18;
 --bg-soft:#0b1226;
 --bg-elev:#101a35;
 --panel:rgba(255,255,255,.045);
 --panel-2:rgba(255,255,255,.08);
 --line:rgba(255,255,255,.10);
 --line-soft:rgba(255,255,255,.06);
 --text:#eaf0ff;
 --muted:#9aa6c8;
 --accent:#ffb400;
 --accent-2:#ffd166;
 --cyan:#38e0f0;
 --deep:#1a1f3d;
 --radius:14px;
 --radius-lg:22px;
 --radius-pill:999px;
 --shadow:0 20px 45px rgba(2,6,23,.55);
 --shadow-soft:0 10px 26px rgba(2,6,23,.35);
 --glow:0 12px 34px rgba(255,180,0,.26);
 --space:88px;
 --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
@media (max-width:1024px){:root{--space:64px}}
@media (max-width:520px){:root{--space:52px}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:var(--font);
 font-size:16px;
 line-height:1.75;
 color:var(--text);
 background:
 radial-gradient(1000px 520px at 12% -8%, rgba(56,224,240,.12), transparent 62%),
 radial-gradient(900px 500px at 88% 4%, rgba(255,180,0,.12), transparent 60%),
 linear-gradient(180deg,#070b18 0%,#0a1022 48%,#070b18 100%);
 background-attachment:fixed;
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--accent-2);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover,a:focus{color:var(--accent)}
a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:800;letter-spacing:.3px}
p{margin:0 0 1em}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
.section{padding:var(--space) 0;position:relative;border-top:1px solid var(--line-soft)}
.section--alt{background:linear-gradient(180deg,rgba(16,26,53,.92) 0%,rgba(9,14,32,.92) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.05rem);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:1rem;margin-bottom:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;margin-bottom:14px;border-radius:var(--radius-pill);font-size:.78rem;font-weight:700;letter-spacing:1.4px;color:var(--accent-2);background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.32)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,24,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand:hover{color:#fff}
.brand-mark{width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;border-radius:13px;font-size:1.15rem;font-weight:900;color:#1a1f3d;background:linear-gradient(135deg,#ffd35c,#ffa600);box-shadow:var(--glow)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:1.06rem;letter-spacing:.5px}
.brand-text small{font-size:.7rem;color:var(--muted);letter-spacing:.6px;font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;display:block;padding:9px 14px;border-radius:var(--radius-pill);font-size:.94rem;font-weight:600;color:#c8d2f0}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.active{color:#fff;background:rgba(255,180,0,.14);box-shadow:inset 0 0 0 1px rgba(255,180,0,.34)}
.nav-link.active::after{content:"";position:absolute;left:50%;bottom:4px;width:16px;height:2px;transform:translateX(-50%);border-radius:2px;background:var(--accent)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);cursor:pointer;padding:0;place-items:center;gap:5px;flex-direction:column}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#dfe6ff;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius-pill);font-weight:800;font-size:.96rem;letter-spacing:.4px;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;text-align:center}
.btn-gold{color:#20180a;background:linear-gradient(135deg,#ffd35c 0%,#ffb400 55%,#ff9500 100%);box-shadow:var(--glow)}
.btn-gold:hover,.btn-gold:focus{color:#1a1200;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,209,102,.55),0 18px 40px rgba(255,166,0,.42)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{color:#e7eeff;background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2)}
.btn-ghost:hover,.btn-ghost:focus{color:#fff;background:rgba(255,255,255,.12);border-color:rgba(255,180,0,.5);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:.88rem}
/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;padding:52px 0 58px;border-top:0}
.article-hero .hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.18;filter:saturate(.85)}
.article-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,24,.86) 0%,rgba(7,11,24,.95) 62%,rgba(7,11,24,1) 100%);pointer-events:none}
.article-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.84rem;color:var(--muted);margin-bottom:24px}
.crumbs a{color:#c8d2f0}
.crumbs a:hover{color:var(--accent)}
.crumbs i{font-style:normal;color:rgba(255,255,255,.28)}
.article-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:48px;align-items:center}
.cat-tag{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--radius-pill);font-size:.8rem;font-weight:700;letter-spacing:.6px;color:#ffe6b0;background:rgba(255,180,0,.13);border:1px solid rgba(255,180,0,.36)}
.article-head h1{font-size:clamp(1.62rem,3.2vw,2.55rem);line-height:1.38;margin:18px 0 20px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:.88rem;color:var(--muted)}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.22)}
.article-meta b{color:var(--accent-2);font-weight:700}
.article-figure{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:var(--bg-elev)}
.article-figure img{width:100%;height:280px;object-fit:cover;opacity:.92}
.article-figure figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 18px 14px;font-size:.8rem;color:#dbe4ff;background:linear-gradient(180deg,transparent,rgba(4,8,18,.92))}
/* ---------- article layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 322px;gap:44px;justify-content:center;align-items:start}
.article-main{min-width:0}
.article-body{
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 padding:38px 36px;
 box-shadow:var(--shadow-soft);
 backdrop-filter:blur(8px);
 -webkit-backdrop-filter:blur(8px);
}
.article-body h2{font-size:1.34rem;margin:34px 0 14px;padding-left:14px;border-left:3px solid var(--accent)}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:1.1rem;margin:26px 0 12px;color:#fff}
.article-body p{margin:0 0 16px;color:#cfd8f3}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;color:#cfd8f3}
.article-body li{margin-bottom:8px}
.article-body strong{color:var(--accent-2)}
.article-body a{color:var(--accent-2);text-decoration:underline;text-underline-offset:3px}
.article-body img{border-radius:var(--radius);margin:18px auto;box-shadow:var(--shadow-soft)}
.article-body blockquote{margin:20px 0;padding:16px 20px;border-left:3px solid var(--cyan);background:rgba(56,224,240,.07);border-radius:0 var(--radius) var(--radius) 0;color:#cfd8f3}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:.92rem}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:rgba(255,180,0,.10);color:#fff;font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--line);margin:28px 0}
.empty-state{text-align:center;padding:36px 10px}
.empty-state h2{font-size:1.3rem;border:0;padding:0;margin-bottom:12px}
.empty-state p{color:var(--muted)}
.empty-state .btn{margin-top:14px}
/* ---------- aside ---------- */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.aside-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-soft)}
.aside-card h3{font-size:1rem;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.aside-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:linear-gradient(180deg,var(--accent-2),var(--accent))}
.aside-card p{font-size:.9rem;color:var(--muted);margin-bottom:0}
.aside-list{list-style:none;margin:0;padding:0}
.aside-list li{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:#cfd8f3;padding:9px 0;border-bottom:1px dashed var(--line-soft)}
.aside-list li:last-child{border-bottom:0;padding-bottom:0}
.aside-list li span{flex:0 0 22px;height:22px;display:grid;place-items:center;border-radius:7px;font-size:.72rem;font-weight:800;color:#1a1f3d;background:linear-gradient(135deg,#ffd35c,#ffa600)}
.aside-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.aside-stat{background:rgba(255,255,255,.05);border:1px solid var(--line-soft);border-radius:var(--radius);padding:12px 14px}
.aside-stat strong{display:block;font-size:1.16rem;color:var(--accent-2);line-height:1.3}
.aside-stat small{font-size:.76rem;color:var(--muted)}
/* ---------- highlight cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.info-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 24px;box-shadow:var(--shadow-soft);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.info-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.42);box-shadow:0 18px 40px rgba(2,6,23,.5)}
.info-card .num{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:11px;font-size:.9rem;font-weight:900;color:#1a1f3d;background:linear-gradient(135deg,#ffd35c,#ffa600);margin-bottom:14px}
.info-card h3{font-size:1.05rem;margin-bottom:10px}
.info-card p{font-size:.92rem;color:var(--muted);margin-bottom:0}
/* ---------- timeline ---------- */
.timeline{position:relative;display:flex;flex-direction:column;gap:26px;padding-left:30px;margin:0}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,rgba(255,180,0,.65),rgba(56,224,240,.25))}
.timeline-item{position:relative}
.timeline-item::before{content:"";position:absolute;left:-30px;top:8px;width:14px;height:14px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,180,0,.16)}
.timeline-item h3{font-size:1.02rem;margin-bottom:6px}
.timeline-item p{font-size:.92rem;color:var(--muted);margin-bottom:0}
/* ---------- related list ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{display:flex;flex-direction:column;gap:10px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-soft);transition:transform .25s ease,border-color .25s ease,background .25s ease}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.45);background:rgba(255,255,255,.07)}
.rel-card .rel-tag{font-size:.74rem;font-weight:700;letter-spacing:.8px;color:var(--cyan)}
.rel-card .rel-title{font-size:1rem;font-weight:700;color:#fff;line-height:1.5}
.rel-card .rel-date{font-size:.8rem;color:var(--muted)}
.rel-more{margin-top:34px}
/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:6px 22px;transition:border-color .22s ease,background .22s ease}
.faq-item[open]{border-color:rgba(255,180,0,.42);background:rgba(255,255,255,.06)}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 0;font-weight:700;font-size:1rem;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.25rem;color:var(--accent);font-weight:800;line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-item p{font-size:.93rem;color:var(--muted);margin:0 0 18px}
/* ---------- cta ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--radius-lg);border:1px solid rgba(255,180,0,.3);background:linear-gradient(120deg,rgba(26,31,61,.96),rgba(16,26,53,.96));padding:44px 42px;box-shadow:var(--shadow)}
.cta-band::before{content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(255,180,0,.24),transparent 68%)}
.cta-band-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(1.3rem,2.4vw,1.7rem);margin-bottom:10px}
.cta-band p{color:var(--muted);margin-bottom:0;max-width:620px}
.cta-band .btn{flex:0 0 auto}
/* ---------- footer ---------- */
.site-footer{background:linear-gradient(180deg,#08101f 0%,#05080f 100%);border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;color:#fff;font-size:1.05rem}
.footer-text{color:var(--muted);font-size:.9rem;line-height:1.8;margin-bottom:12px}
.footer-col h4{font-size:.95rem;color:#fff;margin-bottom:16px;letter-spacing:.6px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted);font-size:.9rem}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:40px;padding-top:22px;border-top:1px solid var(--line-soft);color:var(--muted);font-size:.84rem}
.footer-bottom .tip{color:rgba(154,166,200,.85)}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .header-inner{flex-wrap:wrap}
 .nav-toggle{display:flex}
 .main-nav{display:none;order:3;width:100%;flex-direction:column;align-items:stretch;gap:4px;padding:12px 0 6px;border-top:1px solid var(--line-soft);margin-top:6px}
 .main-nav.is-open{display:flex}
 .nav-link{padding:12px 14px}
 .article-hero-grid{grid-template-columns:minmax(0,1fr);gap:30px}
 .article-figure img{height:230px}
 .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
 .article-aside{position:static}
 .grid-3,.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
 .article-body{padding:28px 22px}
 .article-body h2{font-size:1.18rem}
 .grid-3,.grid-2,.rel-grid{grid-template-columns:minmax(0,1fr)}
 .cta-band{padding:32px 24px}
 .footer-grid{grid-template-columns:minmax(0,1fr);gap:30px}
 .section-head{margin-bottom:28px}
 .aside-stats{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
 .container{padding:0 16px}
 .brand-text small{display:none}
 .article-hero{padding:36px 0 42px}
 .article-head h1{font-size:1.42rem}
 .article-figure img{height:190px}
 .btn{width:100%}
 .header-actions .btn{width:auto}
 .article-meta{font-size:.8rem}
 .footer-bottom{font-size:.78rem}
}

/* roulang page: category1 */
:root{
 --bg:#070b18;
 --bg-soft:#0b1226;
 --bg-elev:#101a35;
 --panel:rgba(255,255,255,.045);
 --panel-2:rgba(255,255,255,.08);
 --line:rgba(255,255,255,.10);
 --line-soft:rgba(255,255,255,.06);
 --text:#eaf0ff;
 --muted:#9aa6c8;
 --accent:#ffb400;
 --accent-2:#ffd166;
 --cyan:#38e0f0;
 --deep:#1a1f3d;
 --radius:14px;
 --radius-lg:22px;
 --radius-pill:999px;
 --shadow:0 20px 45px rgba(2,6,23,.55);
 --shadow-soft:0 10px 26px rgba(2,6,23,.35);
 --glow:0 12px 34px rgba(255,180,0,.26);
 --space:88px;
 --font:"PingFang SC","Hiragino Sans GB","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);
 font-size:16px;
 line-height:1.75;
 color:var(--text);
 background:
 radial-gradient(1000px 520px at 12% -8%, rgba(56,224,240,.12), transparent 62%),
 radial-gradient(900px 500px at 88% 4%, rgba(255,180,0,.12), transparent 60%),
 linear-gradient(180deg,#070b18 0%,#0a1022 48%,#070b18 100%);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--accent-2);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover,a:focus{color:var(--accent)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
button{font-family:inherit}
h1,h2,h3,h4{margin:0 0 .55em;line-height:1.28;font-weight:800;letter-spacing:.3px}
h1{font-size:clamp(1.85rem,3.6vw,2.85rem)}
h2{font-size:clamp(1.45rem,2.5vw,2rem)}
h3{font-size:1.12rem}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.15em}
li{margin-bottom:.45em}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
.section{padding:var(--space) 0;position:relative;border-top:1px solid var(--line-soft)}
.section--alt{background:linear-gradient(180deg,rgba(16,26,53,.92) 0%,rgba(9,14,32,.92) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:780px;margin-bottom:38px}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--muted);margin-bottom:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;margin-bottom:14px;border-radius:var(--radius-pill);font-size:.78rem;font-weight:700;letter-spacing:1.4px;color:var(--accent-2);background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.32)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,24,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand:hover{color:#fff}
.brand-mark{width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;border-radius:13px;font-size:1.15rem;font-weight:900;color:#1a1f3d;background:linear-gradient(135deg,#ffd35c,#ffa600);box-shadow:var(--glow)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:1.06rem;letter-spacing:.5px}
.brand-text small{font-size:.7rem;color:var(--muted);letter-spacing:.6px;font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;display:block;padding:9px 14px;border-radius:var(--radius-pill);font-size:.94rem;font-weight:600;color:#c8d2f0}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.active{color:#fff;background:rgba(255,180,0,.14);box-shadow:inset 0 0 0 1px rgba(255,180,0,.34)}
.nav-link.active::after{content:"";position:absolute;left:50%;bottom:4px;width:16px;height:2px;transform:translateX(-50%);border-radius:2px;background:var(--accent)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);cursor:pointer;padding:0;place-items:center;gap:5px;flex-direction:column}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#dfe6ff;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius-pill);font-weight:800;font-size:.96rem;letter-spacing:.4px;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;text-align:center}
.btn-gold{color:#20180a;background:linear-gradient(135deg,#ffd35c 0%,#ffb400 55%,#ff9500 100%);box-shadow:var(--glow)}
.btn-gold:hover,.btn-gold:focus{color:#1a1200;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,209,102,.55),0 18px 40px rgba(255,166,0,.42)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{color:#e7eeff;background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2)}
.btn-ghost:hover,.btn-ghost:focus{color:#fff;background:rgba(255,255,255,.12);border-color:rgba(255,180,0,.5);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:.88rem}
/* hero */
.hero{position:relative;overflow:hidden;padding:74px 0 66px;border-top:0}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.22;filter:saturate(.9)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,11,24,.97) 0%,rgba(7,11,24,.82) 48%,rgba(7,11,24,.94) 100%);pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:start}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,#ffd166,#ffb400 55%,#38e0f0 130%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#c3cde9;font-size:1.03rem;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 24px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:7px 15px;border-radius:var(--radius-pill);font-size:.83rem;font-weight:600;color:#cfd9f5;background:rgba(255,255,255,.05);border:1px solid var(--line);transition:all .2s ease}
.chip::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.chip:hover{color:#fff;border-color:rgba(255,180,0,.55);background:rgba(255,180,0,.12);transform:translateY(-2px)}
.hero-panel{padding:26px;border-radius:var(--radius-lg);border:1px solid var(--line);background:linear-gradient(160deg,rgba(255,255,255,.085),rgba(255,255,255,.025));box-shadow:var(--shadow);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.panel-title{font-size:.95rem;letter-spacing:1.2px;color:var(--accent-2);margin-bottom:16px;font-weight:800}
.metric-list{list-style:none;margin:0 0 14px;padding:0}
.metric-list li{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px dashed var(--line-soft);margin:0}
.metric-list li:last-child{border-bottom:0}
.metric-k{color:#b7c2e0;font-size:.9rem}
.metric-v{font-weight:800;font-size:1.02rem;color:#fff;white-space:nowrap}
.metric-v span{color:var(--cyan);font-size:.85rem;margin-left:4px}
.panel-note{margin:0;font-size:.82rem;color:var(--muted);line-height:1.65}
/* generic card */
.g-card{padding:24px;border-radius:var(--radius-lg);border:1px solid var(--line);background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.025));box-shadow:var(--shadow-soft);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.g-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.36);box-shadow:0 24px 48px rgba(2,6,23,.6)}
.g-card h3{color:#fff;margin-bottom:10px}
.g-card p{color:var(--muted);font-size:.94rem;margin-bottom:0}
.tag{display:inline-block;padding:4px 11px;margin-bottom:12px;border-radius:var(--radius-pill);font-size:.74rem;font-weight:700;letter-spacing:.8px;color:var(--accent-2);background:rgba(255,180,0,.12);border:1px solid rgba(255,180,0,.3)}
.tag--cyan{color:#bff3fa;background:rgba(56,224,240,.12);border-color:rgba(56,224,240,.34)}
/* split layout */
.split{display:grid;grid-template-columns:.95fr 1.05fr;gap:48px;align-items:center}
.split-figure{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.split-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;filter:saturate(.95)}
.split-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,24,0) 45%,rgba(7,11,24,.72) 100%)}
.figure-cap{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;font-size:.85rem;color:#e6edff}
/* matrix */
.matrix{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.matrix .g-card{position:relative;padding-top:26px}
.matrix .num{position:absolute;top:-16px;left:22px;width:34px;height:34px;display:grid;place-items:center;border-radius:11px;font-size:.85rem;font-weight:900;color:#1a1f3d;background:linear-gradient(135deg,#ffd35c,#ffa600);box-shadow:var(--glow)}
/* checklist */
.check-list{list-style:none;margin:0;padding:0}
.check-list li{display:flex;gap:12px;align-items:flex-start;padding:13px 0;border-bottom:1px solid var(--line-soft);margin:0;color:#cbd5f0;font-size:.95rem}
.check-list li:last-child{border-bottom:0}
.check-list .mk{flex:0 0 22px;width:22px;height:22px;margin-top:3px;display:grid;place-items:center;border-radius:7px;font-size:.72rem;font-weight:900;color:#0a1022;background:linear-gradient(135deg,#ffd35c,#ffb400)}
.check-list strong{color:#fff}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:st}
.step{position:relative;padding:26px 22px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(255,255,255,.04);box-shadow:var(--shadow-soft);transition:transform .25s ease,border-color .25s ease}
.step:hover{transform:translateY(-4px);border-color:rgba(56,224,240,.4)}
.step::before{counter-increment:st;content:"0" counter(st);display:block;font-size:1.6rem;font-weight:900;color:rgba(255,180,0,.85);letter-spacing:1px;margin-bottom:8px;line-height:1}
.step h3{font-size:1rem;margin-bottom:8px}
.step p{font-size:.9rem;color:var(--muted);margin:0}
/* scene rows */
.scene-list{display:grid;gap:18px}
.scene-row{display:grid;grid-template-columns:180px 1fr;gap:26px;align-items:start;padding:24px;border-radius:var(--radius-lg);border:1px solid var(--line);background:linear-gradient(120deg,rgba(255,255,255,.06),rgba(255,255,255,.02));transition:border-color .25s ease,transform .25s ease}
.scene-row:hover{border-color:rgba(255,180,0,.35);transform:translateX(4px)}
.scene-row h3{margin-bottom:6px;color:#fff}
.scene-row .scene-kicker{font-size:.78rem;letter-spacing:1.2px;color:var(--cyan);font-weight:700;margin-bottom:6px;display:block}
.scene-row p{margin:0;color:var(--muted);font-size:.94rem}
/* stats */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.stat{padding:26px 22px;border-radius:var(--radius-lg);border:1px solid var(--line);background:linear-gradient(160deg,rgba(56,224,240,.1),rgba(255,255,255,.02));text-align:left;box-shadow:var(--shadow-soft)}
.stat b{display:block;font-size:2rem;line-height:1.1;background:linear-gradient(120deg,#ffd166,#ffb400);-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:900}
.stat span{display:block;margin-top:8px;font-size:.88rem;color:var(--muted)}
/* rules two col */
.rules{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.rules .g-card ul{margin:0;padding-left:1.1em;color:var(--muted);font-size:.93rem}
.rules .g-card li{margin-bottom:.5em}
/* posts */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.post-card{display:flex;flex-direction:column;padding:22px;border-radius:var(--radius-lg);border:1px solid var(--line);background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));box-shadow:var(--shadow-soft);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.post-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.4);box-shadow:0 24px 46px rgba(2,6,23,.6)}
.post-card h3{font-size:1.02rem;margin-bottom:10px;line-height:1.5}
.post-card h3 a{color:#fff}
.post-card h3 a:hover{color:var(--accent-2)}
.post-card p{font-size:.9rem;color:var(--muted);flex:1 1 auto;margin-bottom:16px}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:.78rem;color:#8e9ac0;border-top:1px solid var(--line-soft);padding-top:12px}
.post-meta .cat{color:var(--cyan)}
.list-foot{margin-top:30px;text-align:center}
.empty-tip{padding:26px;border-radius:var(--radius);border:1px dashed var(--line);color:var(--muted);text-align:center;background:rgba(255,255,255,.03)}
/* faq */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start}
.faq-item{border-radius:var(--radius);border:1px solid var(--line);background:rgba(255,255,255,.04);padding:0 20px;transition:border-color .22s ease,background .22s ease}
.faq-item[open]{border-color:rgba(255,180,0,.42);background:rgba(255,180,0,.06)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 30px 18px 0;font-weight:700;color:#fff;position:relative;font-size:.98rem}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:1.25rem;color:var(--accent);line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item p{color:var(--muted);font-size:.93rem;margin:0 0 18px}
/* cta */
.cta-band{position:relative;overflow:hidden;padding:56px 40px;border-radius:var(--radius-lg);border:1px solid rgba(255,180,0,.28);background:linear-gradient(130deg,rgba(255,180,0,.16),rgba(56,224,240,.1) 55%,rgba(16,26,53,.9));box-shadow:var(--shadow);text-align:center}
.cta-band h2{margin-bottom:12px}
.cta-band p{color:#cfd9f5;max-width:640px;margin:0 auto 26px}
/* footer */
.site-footer{background:#050915;border-top:1px solid var(--line);padding:58px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;font-size:1.06rem;color:#fff;font-weight:800}
.footer-brand .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:1rem}
.footer-text{color:var(--muted);font-size:.9rem;max-width:520px}
.footer-col h4{font-size:.94rem;color:#fff;margin-bottom:14px;letter-spacing:.6px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted);font-size:.9rem}
.footer-col a:hover{color:var(--accent-2)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:40px;padding-top:20px;border-top:1px solid var(--line-soft);font-size:.82rem;color:#7d89ad}
.footer-bottom .tip{color:#7d89ad}
/* responsive */
@media (max-width:1024px){
 :root{--space:64px}
 .hero-grid{grid-template-columns:1fr;gap:36px}
 .split{gap:30px}
 .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
 .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
 .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:960px){
 .nav-toggle{display:flex}
 .main-nav{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;padding:14px 22px 20px;background:rgba(8,13,28,.98);border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none}
 .main-nav.open{display:flex}
 .nav-link{padding:12px 14px;border-radius:12px}
 .nav-link.active::after{display:none}
 .header-actions .btn-sm{display:none}
 .split{grid-template-columns:1fr}
 .scene-row{grid-template-columns:1fr;gap:12px}
 .faq-grid{grid-template-columns:1fr}
 .rules{grid-template-columns:1fr}
}
@media (max-width:768px){
 :root{--space:52px}
 .hero{padding:52px 0 48px}
 .hero-panel{padding:20px}
 .matrix{grid-template-columns:1fr}
 .post-grid{grid-template-columns:1fr}
 .cta-band{padding:40px 22px}
}
@media (max-width:520px){
 .container{padding:0 16px}
 .brand-text small{display:none}
 .hero-actions .btn{width:100%}
 .steps{grid-template-columns:1fr}
 .stats{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr}
 .section-head{margin-bottom:26px}
 .post-meta{flex-direction:column;align-items:flex-start;gap:4px}
}

/* roulang page: category3 */
:root{
  --bg:#070b18;
  --bg-soft:#0b1226;
  --bg-elev:#101a35;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --text:#eaf0ff;
  --muted:#9aa6c8;
  --accent:#ffb400;
  --accent-2:#ffd166;
  --cyan:#38e0f0;
  --deep:#1a1f3d;
  --radius:14px;
  --radius-lg:22px;
  --radius-pill:999px;
  --shadow:0 20px 45px rgba(2,6,23,.55);
  --shadow-soft:0 10px 26px rgba(2,6,23,.35);
  --glow:0 12px 34px rgba(255,180,0,.26);
  --space:88px;
  --font:"PingFang SC","Hiragino Sans GB","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);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1000px 520px at 12% -8%, rgba(56,224,240,.12), transparent 62%),
    radial-gradient(900px 500px at 88% 4%, rgba(255,180,0,.12), transparent 60%),
    linear-gradient(180deg,#070b18 0%,#0a1022 48%,#070b18 100%);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--accent-2);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover,a:focus{color:var(--accent)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0 0 .55em;line-height:1.28;letter-spacing:.4px;font-weight:800}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
.section{padding:var(--space) 0;position:relative;border-top:1px solid var(--line-soft)}
.section--alt{background:linear-gradient(180deg,rgba(16,26,53,.92) 0%,rgba(9,14,32,.92) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.05rem)}
.section-head p{color:var(--muted);font-size:1rem;margin-bottom:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;margin-bottom:14px;border-radius:var(--radius-pill);font-size:.78rem;font-weight:700;letter-spacing:1.4px;color:var(--accent-2);background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.32)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,24,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand:hover{color:#fff}
.brand-mark{width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;border-radius:13px;font-size:1.15rem;font-weight:900;color:#1a1f3d;background:linear-gradient(135deg,#ffd35c,#ffa600);box-shadow:var(--glow)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:1.06rem;letter-spacing:.5px}
.brand-text small{font-size:.7rem;color:var(--muted);letter-spacing:.6px;font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;display:block;padding:9px 14px;border-radius:var(--radius-pill);font-size:.94rem;font-weight:600;color:#c8d2f0}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.active{color:#fff;background:rgba(255,180,0,.14);box-shadow:inset 0 0 0 1px rgba(255,180,0,.34)}
.nav-link.active::after{content:"";position:absolute;left:50%;bottom:4px;width:16px;height:2px;transform:translateX(-50%);border-radius:2px;background:var(--accent)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);cursor:pointer;padding:0;place-items:center;gap:5px;flex-direction:column}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#dfe6ff;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius-pill);font-weight:800;font-size:.96rem;letter-spacing:.4px;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;text-align:center}
.btn-gold{color:#20180a;background:linear-gradient(135deg,#ffd35c 0%,#ffb400 55%,#ff9500 100%);box-shadow:var(--glow)}
.btn-gold:hover,.btn-gold:focus{color:#1a1200;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,209,102,.55),0 18px 40px rgba(255,166,0,.42)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{color:#e7eeff;background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2)}
.btn-ghost:hover,.btn-ghost:focus{color:#fff;background:rgba(255,255,255,.12);border-color:rgba(255,180,0,.5);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:.88rem}
/* category hero */
.cat-hero{position:relative;overflow:hidden;padding:70px 0 58px;border-top:0}
.cat-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.2;filter:saturate(.85)}
.cat-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(7,11,24,.97) 0%,rgba(7,11,24,.8) 48%,rgba(7,11,24,.92) 100%);pointer-events:none}
.cat-hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center}
.crumb{display:flex;align-items:center;gap:8px;font-size:.82rem;color:var(--muted);margin-bottom:16px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent-2)}
.crumb span{opacity:.5}
.pill{display:inline-flex;align-items:center;gap:9px;padding:7px 16px;margin-bottom:18px;border-radius:var(--radius-pill);font-size:.8rem;font-weight:700;letter-spacing:.8px;color:#d8e4ff;background:rgba(56,224,240,.1);border:1px solid rgba(56,224,240,.36)}
.pill i{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);font-style:normal}
.cat-hero h1{font-size:clamp(1.8rem,3.5vw,2.7rem);margin-bottom:18px;letter-spacing:.5px}
.cat-hero h1 em{font-style:normal;background:linear-gradient(120deg,#ffd166,#ffb400 60%,#38e0f0);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#c6d1ef;font-size:1.02rem;max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:580px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;box-shadow:var(--shadow-soft);backdrop-filter:blur(8px)}
.stat b{display:block;font-size:1.22rem;color:#fff;letter-spacing:.5px}
.stat span{display:block;font-size:.76rem;color:var(--muted);letter-spacing:.6px}
/* hero feature card */
.feature-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.14);background:var(--bg-elev);box-shadow:var(--shadow)}
.feature-card .fc-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.feature-card .fc-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.feature-card:hover .fc-media img{transform:scale(1.05)}
.feature-card .fc-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,24,0) 30%,rgba(7,11,24,.92) 100%)}
.fc-badge{position:absolute;top:14px;left:14px;z-index:2;padding:5px 12px;border-radius:var(--radius-pill);font-size:.74rem;font-weight:800;letter-spacing:.6px;color:#20180a;background:linear-gradient(135deg,#ffd35c,#ffb400);box-shadow:var(--glow)}
.fc-body{padding:20px 22px 24px}
.fc-body h3{font-size:1.12rem;margin-bottom:8px}
.fc-body p{color:var(--muted);font-size:.9rem;margin-bottom:14px}
.fc-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:.78rem;color:var(--muted)}
/* generic cards */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.gc-card{position:relative;padding:26px 24px;border-radius:var(--radius-lg);background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.02));border:1px solid var(--line);box-shadow:var(--shadow-soft);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;height:100%}
.gc-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.42);box-shadow:0 24px 50px rgba(2,6,23,.6)}
.gc-card h3{font-size:1.08rem;margin-bottom:10px}
.gc-card p{color:var(--muted);font-size:.93rem;margin-bottom:0}
.card-index{display:inline-grid;place-items:center;width:38px;height:38px;margin-bottom:16px;border-radius:12px;font-weight:900;font-size:.95rem;color:#1a1f3d;background:linear-gradient(135deg,#ffd35c,#ffa600);box-shadow:var(--glow)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--radius-pill);font-size:.75rem;font-weight:700;letter-spacing:.5px;color:var(--cyan);background:rgba(56,224,240,.1);border:1px solid rgba(56,224,240,.3)}
.tag--gold{color:var(--accent-2);background:rgba(255,180,0,.1);border-color:rgba(255,180,0,.32)}
/* scene list */
.scene-card{display:flex;gap:16px;padding:22px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);transition:background .25s ease,border-color .25s ease,transform .25s ease;height:100%}
.scene-card:hover{background:var(--panel-2);border-color:rgba(56,224,240,.34);transform:translateY(-3px)}
.scene-ico{flex:0 0 46px;width:46px;height:46px;display:grid;place-items:center;border-radius:14px;font-weight:900;font-size:1rem;color:#0b1226;background:linear-gradient(135deg,#7ef0f8,#38e0f0)}
.scene-card h3{font-size:1rem;margin-bottom:6px}
.scene-card p{font-size:.88rem;color:var(--muted);margin:0}
/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step-item{position:relative;padding:26px 22px 24px;border-radius:var(--radius-lg);background:rgba(16,26,53,.72);border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.step-item::before{counter-increment:step;content:"0" counter(step);display:block;font-size:1.5rem;font-weight:900;letter-spacing:1px;color:transparent;background:linear-gradient(135deg,#ffd166,#ffb400);-webkit-background-clip:text;background-clip:text;margin-bottom:10px}
.step-item h3{font-size:1rem;margin-bottom:8px}
.step-item p{font-size:.88rem;color:var(--muted);margin:0}
/* compare table */
.table-wrap{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--line);background:rgba(16,26,53,.6);box-shadow:var(--shadow-soft)}
.compare-table{width:100%;min-width:680px;border-collapse:collapse;font-size:.92rem}
.compare-table thead th{background:rgba(255,180,0,.1);color:var(--accent-2);font-weight:800;text-align:left;padding:16px 18px;letter-spacing:.6px;border-bottom:1px solid var(--line);white-space:nowrap}
.compare-table tbody td{padding:16px 18px;border-bottom:1px solid var(--line-soft);color:#d3dcf6;vertical-align:top}
.compare-table tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.compare-table tbody tr:hover{background:rgba(255,180,0,.06)}
.compare-table tbody tr:last-child td{border-bottom:0}
.td-key{color:#fff;font-weight:700}
/* review cards */
.review-card{display:flex;flex-direction:column;border-radius:var(--radius-lg);overflow:hidden;background:var(--bg-elev);border:1px solid var(--line);box-shadow:var(--shadow-soft);transition:transform .25s ease,border-color .25s ease;height:100%}
.review-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.4)}
.review-card .rc-media{aspect-ratio:16/9;overflow:hidden}
.review-card .rc-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.review-card:hover .rc-media img{transform:scale(1.06)}
.review-card .rc-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.review-card h3{font-size:1.02rem;margin:0}
.review-card p{color:var(--muted);font-size:.88rem;margin:0;flex:1}
/* news list */
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.news-item{display:block;padding:22px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);color:var(--text);transition:transform .25s ease,border-color .25s ease,background .25s ease}
.news-item:hover{transform:translateY(-3px);border-color:rgba(255,180,0,.42);background:var(--panel-2);color:#fff}
.news-item h3{font-size:1rem;margin:10px 0 8px;color:#fff}
.news-item p{font-size:.86rem;color:var(--muted);margin:0 0 12px}
.news-date{font-size:.78rem;color:var(--muted);letter-spacing:.4px}
.empty-tip{padding:26px;border-radius:var(--radius);background:var(--panel);border:1px dashed var(--line);color:var(--muted);text-align:center;margin:0}
/* channels */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.channel-card{display:block;padding:26px 24px;border-radius:var(--radius-lg);background:linear-gradient(150deg,rgba(26,31,61,.95),rgba(11,18,38,.95));border:1px solid var(--line);color:var(--text);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.channel-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.5);box-shadow:var(--shadow);color:#fff}
.channel-card h3{font-size:1.05rem;margin-bottom:8px;color:#fff}
.channel-card p{font-size:.87rem;color:var(--muted);margin:0 0 14px}
.channel-more{font-size:.84rem;font-weight:800;color:var(--accent-2);letter-spacing:.5px}
/* faq */
.faq{display:grid;gap:14px;max-width:900px}
.faq-item{border-radius:var(--radius);border:1px solid var(--line);background:rgba(16,26,53,.6);overflow:hidden;transition:border-color .25s ease,background .25s ease}
.faq-item[open]{border-color:rgba(255,180,0,.38);background:rgba(16,26,53,.9)}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 52px 18px 22px;position:relative;font-weight:700;font-size:.99rem;color:#fff}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:1.3rem;font-weight:800;color:var(--accent);line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item .faq-answer{padding:0 22px 20px;color:var(--muted);font-size:.93rem;margin:0}
/* cta band */
.cta-band{position:relative;overflow:hidden;padding:56px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line-soft);background:linear-gradient(120deg,rgba(26,31,61,.96),rgba(10,16,34,.96))}
.cta-band::before{content:"";position:absolute;width:420px;height:420px;right:-120px;top:-180px;border-radius:50%;background:radial-gradient(circle,rgba(255,180,0,.22),transparent 68%)}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(1.35rem,2.4vw,1.85rem);margin-bottom:8px}
.cta-inner p{color:var(--muted);margin:0;max-width:600px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
/* footer */
.site-footer{madding-top:0;padding:58px 0 26px;background:linear-gradient(180deg,rgba(7,11,24,.4),rgba(4,7,16,.98));border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.6fr .7fr .7fr;gap:40px;padding-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand strong{font-size:1.05rem;letter-spacing:.5px;color:#fff}
.footer-text{color:var(--muted);font-size:.87rem;margin-bottom:10px;max-width:520px}
.footer-col h4{font-size:.92rem;color:#fff;margin-bottom:14px;letter-spacing:.6px}
.footer-col ul{display:grid;gap:9px}
.footer-col a{font-size:.87rem;color:var(--muted)}
.footer-col a:hover{color:var(--accent-2)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:20px;border-top:1px solid var(--line-soft);font-size:.82rem;color:var(--muted)}
.footer-bottom .tip{color:rgba(154,166,200,.85)}
/* responsive */
@media (max-width:1024px){
  :root{--space:64px}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .grid-3,.grid-4,.channel-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .main-nav{gap:2px}
  .nav-link{padding:8px 10px;font-size:.88rem}
}
@media (max-width:768px){
  :root{--space:52px}
  .main-nav{position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;gap:6px;padding:14px 22px 20px;background:rgba(7,11,24,.98);border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none}
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;font-size:.95rem}
  .nav-link.active::after{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-sm{display:none}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .grid-2,.news-list{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .cat-hero{padding:48px 0 42px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .grid-3,.grid-4,.channel-grid,.steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .brand-text small{display:none}
  .compare-table{min-width:560px}
}

/* roulang page: category2 */
:root{
  --bg:#070b18;
  --bg-soft:#0b1226;
  --bg-elev:#101a35;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --text:#eaf0ff;
  --muted:#9aa6c8;
  --accent:#ffb400;
  --accent-2:#ffd166;
  --cyan:#38e0f0;
  --deep:#1a1f3d;
  --radius:14px;
  --radius-lg:22px;
  --radius-pill:999px;
  --shadow:0 20px 45px rgba(2,6,23,.55);
  --shadow-soft:0 10px 26px rgba(2,6,23,.35);
  --glow:0 12px 34px rgba(255,180,0,.26);
  --space:88px;
  --font:"PingFang SC","Hiragino Sans GB","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);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1000px 520px at 12% -8%, rgba(56,224,240,.12), transparent 62%),
    radial-gradient(900px 500px at 88% 4%, rgba(255,180,0,.12), transparent 60%),
    linear-gradient(180deg,#070b18 0%,#0a1022 48%,#070b18 100%);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0 0 .55em;line-height:1.28;font-weight:800;letter-spacing:.3px;color:#fff}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto;border:0}
a{color:var(--accent-2);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover,a:focus{color:var(--accent)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,24,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand:hover,.brand:focus{color:#fff}
.brand-mark{width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;border-radius:13px;font-size:1.15rem;font-weight:900;color:#1a1f3d;background:linear-gradient(135deg,#ffd35c,#ffa600);box-shadow:var(--glow)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:1.06rem;letter-spacing:.5px}
.brand-text small{font-size:.7rem;color:var(--muted);letter-spacing:.6px;font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;display:block;padding:9px 14px;border-radius:var(--radius-pill);font-size:.94rem;font-weight:600;color:#c8d2f0}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-link.active{color:#fff;background:rgba(255,180,0,.14);box-shadow:inset 0 0 0 1px rgba(255,180,0,.34)}
.nav-link.active::after{content:"";position:absolute;left:50%;bottom:4px;width:16px;height:2px;transform:translateX(-50%);border-radius:2px;background:var(--accent)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);cursor:pointer;padding:0;place-items:center;gap:5px;flex-direction:column}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#dfe6ff;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius-pill);font-weight:800;font-size:.96rem;letter-spacing:.4px;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease;text-align:center}
.btn-gold{color:#20180a;background:linear-gradient(135deg,#ffd35c 0%,#ffb400 55%,#ff9500 100%);box-shadow:var(--glow)}
.btn-gold:hover,.btn-gold:focus{color:#1a1200;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,209,102,.55),0 18px 40px rgba(255,166,0,.42)}
.btn-gold:active{transform:translateY(0)}
.btn-ghost{color:#e7eeff;background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2)}
.btn-ghost:hover,.btn-ghost:focus{color:#fff;background:rgba(255,255,255,.12);border-color:rgba(255,180,0,.5);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:.88rem}

/* ---------- section ---------- */
.section{padding:var(--space) 0;position:relative;border-top:1px solid var(--line-soft)}
.section--alt{background:linear-gradient(180deg,rgba(16,26,53,.92) 0%,rgba(9,14,32,.92) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:780px;margin-bottom:38px}
.section-head h2{font-size:clamp(1.45rem,2.6vw,2.05rem)}
.section-head p{color:var(--muted);font-size:1rem}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;margin-bottom:14px;border-radius:var(--radius-pill);font-size:.78rem;font-weight:700;letter-spacing:1.4px;color:var(--accent-2);background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.32)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:64px 0 72px;border-top:0}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/免费文档-所有分类-工程科技-信息与通信-水果机游戏.webp');background-size:cover;background-position:center;opacity:.20;filter:saturate(.85)}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,11,24,.97) 0%,rgba(8,13,30,.86) 48%,rgba(7,11,24,.94) 100%);pointer-events:none}
.page-hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:52px;align-items:center}
.pill{display:inline-flex;align-items:center;gap:9px;padding:7px 16px;margin-bottom:18px;border-radius:var(--radius-pill);font-size:.8rem;font-weight:700;letter-spacing:.8px;color:#d8e4ff;background:rgba(56,224,240,.1);border:1px solid rgba(56,224,240,.36)}
.pill i{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);font-style:normal}
.page-hero h1{font-size:clamp(1.7rem,3.3vw,2.6rem);margin-bottom:18px}
.page-hero h1 em{font-style:normal;background:linear-gradient(120deg,#ffd166,#ffb400 60%,#38e0f0);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#c3cdea;font-size:1.02rem;max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.stat b{display:block;font-size:1.32rem;color:#fff;letter-spacing:.4px}
.stat span{font-size:.78rem;color:var(--muted);letter-spacing:.4px}

/* ---------- compare ---------- */
.compare{display:grid;gap:16px}
.compare-card{position:relative;padding:22px 22px 20px;border-radius:var(--radius-lg);background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow-soft);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(255,180,0,.34)}
.compare-card.is-after{background:linear-gradient(160deg,rgba(255,180,0,.12),rgba(255,255,255,.04));border-color:rgba(255,180,0,.36)}
.compare-tag{display:inline-block;padding:4px 12px;margin-bottom:12px;border-radius:var(--radius-pill);font-size:.74rem;font-weight:800;letter-spacing:1px}
.compare-card.is-before .compare-tag{color:#a9b6da;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16)}
.compare-card.is-after .compare-tag{color:#23190a;background:linear-gradient(135deg,#ffd35c,#ffb400)}
.compare-card h3{font-size:1.02rem;margin-bottom:10px}
.compare-card li{position:relative;padding-left:18px;margin-bottom:8px;font-size:.9rem;color:#c6d0ea;line-height:1.7}
.compare-card li:last-child{margin-bottom:0}
.compare-card li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--muted)}
.compare-card.is-after li::before{background:var(--accent);box-shadow:0 0 8px rgba(255,180,0,.8)}

/* ---------- grids & cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{padding:24px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow-soft);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background .25s ease;height:100%}
.card:hover{transform:translateY(-4px);border-color:rgba(56,224,240,.32);box-shadow:var(--shadow);background:var(--panel-2)}
.card h3{font-size:1.04rem;margin-bottom:8px}
.card p{color:var(--muted);font-size:.92rem;margin:0}
.card-ico{width:44px;height:44px;display:grid;place-items:center;margin-bottom:16px;border-radius:12px;font-size:1rem;font-weight:900;color:var(--accent-2);background:rgba(255,180,0,.12);border:1px solid rgba(255,180,0,.3)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{padding:4px 11px;border-radius:var(--radius-pill);font-size:.74rem;font-weight:700;color:#bfe9f3;background:rgba(56,224,240,.1);border:1px solid rgba(56,224,240,.3)}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px;padding-left:26px}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,rgba(255,180,0,.7),rgba(56,224,240,.35),transparent)}
.tl-item{position:relative;padding:0 0 26px 0}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-26px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--bg);border:2px solid var(--accent);box-shadow:0 0 12px rgba(255,180,0,.6)}
.tl-item h3{font-size:1rem;margin-bottom:6px}
.tl-item h3 span{display:inline-block;margin-right:10px;padding:2px 10px;border-radius:6px;font-size:.76rem;color:#1a1f3d;background:linear-gradient(135deg,#ffd35c,#ffb400)}
.tl-item p{margin:0;color:var(--muted);font-size:.92rem}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:rgba(255,255,255,.03);-webkit-overflow-scrolling:touch}
.spec-table{width:100%;min-width:720px;border-collapse:collapse;font-size:.92rem}
.spec-table caption{caption-side:top;text-align:left;padding:16px 18px 0;color:var(--muted);font-size:.84rem}
.spec-table th,.spec-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line-soft);white-space:nowrap}
.spec-table thead th{font-size:.8rem;letter-spacing:1px;color:var(--accent-2);background:rgba(255,180,0,.07);font-weight:800}
.spec-table tbody tr{transition:background .2s ease}
.spec-table tbody tr:hover{background:rgba(56,224,240,.06)}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table td strong{color:#fff}
.spec-table .num{color:var(--cyan);font-weight:700}

/* ---------- scene ---------- */
.scene-card{padding:0;overflow:hidden;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow-soft);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;height:100%}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.34);box-shadow:var(--shadow)}
.scene-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.scene-card:hover .scene-media img{transform:scale(1.05)}
.scene-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,24,.15),rgba(7,11,24,.72))}
.scene-body{padding:20px 22px 24px}
.scene-body h3{font-size:1rem;margin-bottom:8px}
.scene-body p{color:var(--muted);font-size:.9rem;margin:0}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
.step{position:relative;padding:26px 22px 22px;border-radius:var(--radius);background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid var(--line);counter-increment:step;transition:transform .25s ease,border-color .25s ease}
.step:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.4)}
.step::before{content:counter(step,decimal-leading-zero);display:block;font-size:1.5rem;font-weight:900;color:transparent;background:linear-gradient(135deg,#ffd166,#ffb400);-webkit-background-clip:text;background-clip:text;margin-bottom:10px;letter-spacing:1px}
.step h3{font-size:.98rem;margin-bottom:6px}
.step p{color:var(--muted);font-size:.88rem;margin:0}

/* ---------- checklist ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.check-list li{position:relative;padding:14px 0 14px 32px;border-bottom:1px dashed rgba(255,255,255,.09);color:#cfd8f2;font-size:.95rem}
.check-list li:last-child{border-bottom:0}
.check-list li::before{content:"";position:absolute;left:2px;top:1.32em;width:12px;height:12px;border-radius:4px;background:linear-gradient(135deg,#ffd35c,#ffb400);box-shadow:0 0 10px rgba(255,180,0,.45)}
.check-list strong{color:#fff}
.media-frame{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:relative}
.media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.media-frame figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;font-size:.84rem;color:#dbe4ff;background:linear-gradient(180deg,transparent,rgba(7,11,24,.92))}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow-soft);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;height:100%}
.news-card:hover{transform:translateY(-4px);border-color:rgba(56,224,240,.34);box-shadow:var(--shadow)}
.news-card-link{display:flex;flex-direction:column;height:100%;padding:22px;color:inherit}
.news-card-link:hover,.news-card-link:focus{color:inherit}
.news-tag{align-self:flex-start;padding:3px 11px;margin-bottom:12px;border-radius:var(--radius-pill);font-size:.72rem;font-weight:700;color:var(--accent-2);background:rgba(255,180,0,.12);border:1px solid rgba(255,180,0,.3)}
.news-card h3{font-size:1rem;margin-bottom:8px;line-height:1.55}
.news-card p{color:var(--muted);font-size:.88rem;margin:0 0 16px}
.news-time{margin-top:auto;font-size:.78rem;color:#7d8ab0;letter-spacing:.4px}
.empty-note{padding:26px;border-radius:var(--radius);border:1px dashed rgba(255,255,255,.18);color:var(--muted);font-size:.92rem;background:rgba(255,255,255,.03)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);overflow:hidden;transition:border-color .22s ease,background .22s ease}
.faq-item[open]{border-color:rgba(255,180,0,.34);background:var(--panel-2)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 54px 18px 22px;font-weight:700;font-size:.98rem;color:#fff;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:1.3rem;font-weight:700;color:var(--accent)}
.faq-item[open] summary::after{content:"–"}
.faq-item p{padding:0 22px 20px;margin:0;color:var(--muted);font-size:.92rem}

/* ---------- cta ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--radius-lg);padding:44px 40px;background:linear-gradient(130deg,rgba(26,31,61,.95),rgba(12,18,38,.95));border:1px solid rgba(255,180,0,.28);box-shadow:var(--shadow)}
.cta-band::before{content:"";position:absolute;right:-140px;top:-140px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(255,180,0,.28),transparent 70%)}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.3fr .7fr;gap:32px;align-items:center}
.cta-band h2{font-size:clamp(1.35rem,2.4vw,1.85rem);margin-bottom:10px}
.cta-band p{color:#c3cdea;margin:0;font-size:.96rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.assure{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:26px}
.assure div{padding:14px 18px;border-radius:var(--radius);background:rgba(255,255,255,.04);border:1px solid var(--line-soft);font-size:.86rem;color:#c2cdea;display:flex;align-items:center;gap:10px}
.assure div::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);flex:0 0 8px}

/* ---------- footer ---------- */
.site-footer{padding:64px 0 28px;background:linear-gradient(180deg,rgba(9,14,32,.6),rgba(4,7,16,.98));border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;font-size:1.04rem;color:#fff}
.footer-text{color:var(--muted);font-size:.88rem;max-width:520px}
.footer-col h4{font-size:.95rem;margin-bottom:14px;color:#fff;letter-spacing:.6px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:#a9b5d6;font-size:.88rem}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;margin-top:40px;padding-top:22px;border-top:1px solid var(--line-soft);font-size:.8rem;color:#7f8cb0}
.footer-bottom .tip{color:#8b97b8}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--space:64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .header-actions .btn{display:none}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:14px 18px 20px;
    background:rgba(7,11,24,.98);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;border-radius:12px}
  .nav-link.active::after{display:none}
  .site-header{position:sticky}
  .header-inner{position:relative}
}
@media (max-width:768px){
  :root{--space:52px}
  .page-hero{padding:48px 0 56px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:16px}
  .grid-4,.grid-3,.news-grid,.steps{grid-template-columns:1fr}
  .cta-band{padding:32px 24px}
  .assure{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-text small{display:none}
  .hero-actions .btn{width:100%}
  .section-head{margin-bottom:26px}
  .spec-table th,.spec-table td{padding:12px 14px;font-size:.86rem}
}