/* roulang page: index */
:root{
  --bg-0:#0F0C1B;
  --bg-1:#171329;
  --bg-2:#1F1A35;
  --bg-light:#F6F4FF;
  --bg-light-2:#ECE8FC;
  --primary:#7A5CFF;
  --primary-deep:#5533E0;
  --accent:#2FE0C0;
  --cta:#FF7A45;
  --cta-2:#FF5F2E;
  --text:#F2EFFA;
  --text-2:#A9A2C7;
  --text-3:#6F6890;
  --dark:#1A1533;
  --dark-2:#4A4468;
  --line:rgba(122,92,255,.22);
  --line-soft:rgba(122,92,255,.12);
  --line-light:rgba(26,21,51,.10);
  --r-card:16px;
  --r-panel:20px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-deep:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -22px rgba(0,0,0,.85);
  --shadow-light:0 10px 30px rgba(23,19,41,.08);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
h1{font-size:clamp(30px,4.6vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.01em;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{line-height:1.75;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-light{background:var(--bg-light);color:var(--dark);}
.section-light .lead,.section-light p{color:var(--dark-2);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--accent);font-weight:600;margin-bottom:10px;text-transform:uppercase;}
.section-head h2{position:relative;padding-left:14px;}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:linear-gradient(180deg,var(--cta),var(--cta-2));}
.section-light .section-head h2::before{background:linear-gradient(180deg,var(--cta),var(--cta-2));}
.section-head .head-note{color:var(--text-2);font-size:15px;max-width:520px;}
.section-light .head-note{color:var(--dark-2);}
.text-link{color:var(--accent);font-size:15px;font-weight:600;border-bottom:2px solid transparent;transition:border-color .2s var(--ease),color .2s var(--ease);padding-bottom:2px;}
.text-link:hover{border-bottom-color:var(--accent);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;padding:14px 26px;border-radius:var(--r-btn);transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);min-height:46px;white-space:nowrap;}
.btn-primary{background:linear-gradient(135deg,var(--cta),var(--cta-2));color:#fff;box-shadow:0 12px 26px -14px rgba(255,95,46,.9);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border:1px solid var(--line);color:var(--text);background:rgba(122,92,255,.06);}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);background:rgba(47,224,192,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-dark{background:var(--dark);color:#fff;}
.btn-dark:hover{background:var(--primary-deep);transform:translateY(-2px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-badge);line-height:1.5;}
.badge-cat{color:var(--accent);background:rgba(47,224,192,.12);}
.badge-time{color:var(--text-2);border:1px solid var(--line);}
.section-light .badge-time{color:var(--dark-2);border-color:var(--line-light);}

/* 顶部导航 */
.site-header{position:fixed;top:0;left:0;right:0;z-index:900;background:transparent;transition:background .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);border-bottom:1px solid transparent;}
.site-header.is-scrolled{background:rgba(15,12,27,.94);border-bottom-color:var(--line);box-shadow:0 12px 30px -24px rgba(0,0,0,.9);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:flex;align-items:baseline;gap:8px;flex-shrink:0;}
.brand-main{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--text);}
.brand-sub{font-size:11px;font-weight:600;color:var(--accent);border:1px solid rgba(47,224,192,.4);border-radius:4px;padding:1px 5px;letter-spacing:.08em;}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1;}
.nav-main a{display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:8px;font-size:15px;color:var(--text-2);font-weight:500;transition:color .2s var(--ease),background .2s var(--ease);}
.nav-main a:hover{color:var(--text);background:var(--bg-2);}
.nav-main a.active{color:var(--accent);background:rgba(47,224,192,.08);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.mega-trigger{display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 14px;border-radius:8px;font-size:15px;font-weight:600;color:var(--text-2);transition:color .2s var(--ease),background .2s var(--ease);}
.mega-trigger:hover,.mega-trigger.is-open{color:var(--text);background:var(--bg-2);}
.mega-trigger .caret{width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .22s var(--ease);}
.mega-trigger.is-open .caret{transform:rotate(-135deg) translateY(-2px);}
.nav-cta{padding:10px 20px;font-size:14px;min-height:40px;}

/* Mega 面板 */
.mega-panel{position:absolute;top:calc(100% + 10px);right:24px;width:820px;max-width:calc(100vw - 48px);background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-panel);box-shadow:var(--shadow-deep);padding:26px;display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:26px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s var(--ease);}
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:13px;letter-spacing:.1em;color:var(--text-3);font-weight:700;margin-bottom:14px;text-transform:uppercase;}
.mega-cats li+li{margin-top:4px;}
.mega-cats a{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);padding:7px 8px;border-radius:8px;transition:color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease);}
.mega-cats a:hover{color:var(--accent);background:var(--bg-2);transform:translateX(4px);}
.mega-cats a .dot{width:5px;height:5px;border-radius:50%;background:var(--accent);flex-shrink:0;}
.mega-news li+li{margin-top:14px;padding-top:14px;border-top:1px solid var(--line-soft);}
.mega-news a{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5;transition:color .2s var(--ease);}
.mega-news a:hover{color:var(--accent);}
.mega-news .t{display:block;margin-top:5px;font-size:12px;color:var(--text-3);}
.mega-cards{display:grid;grid-template-columns:1fr;gap:12px;}
.mega-card{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:var(--bg-2);display:block;transition:transform .2s var(--ease),border-color .2s var(--ease);}
.mega-card:hover{transform:translateY(-2px);border-color:rgba(47,224,192,.4);}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mega-card span{position:absolute;left:0;right:0;bottom:0;padding:20px 12px 10px;font-size:13px;font-weight:600;color:#fff;background:linear-gradient(180deg,rgba(15,12,27,0),rgba(15,12,27,.92));}

/* 汉堡与移动抽屉 */
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{position:fixed;inset:72px 0 0;background:var(--bg-0);z-index:890;padding:24px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;transform:translateX(100%);transition:transform .26s var(--ease);visibility:hidden;}
.mobile-drawer.is-open{transform:translateX(0);visibility:visible;}
.mobile-drawer a.drawer-link{display:flex;align-items:center;min-height:52px;padding:0 16px;border-radius:12px;font-size:16px;font-weight:600;color:var(--text-2);border:1px solid var(--line-soft);background:var(--bg-1);}
.mobile-drawer a.drawer-link.active{color:var(--accent);border-color:rgba(47,224,192,.4);}
.mobile-drawer .drawer-cta{margin-top:14px;width:100%;}

/* Hero */
.hero{position:relative;padding:132px 0 88px;background:radial-gradient(900px 520px at 82% -10%,rgba(122,92,255,.30),transparent 65%),radial-gradient(700px 420px at 4% 20%,rgba(47,224,192,.12),transparent 60%),var(--bg-0);overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:56px;align-items:center;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--accent);background:rgba(47,224,192,.1);border:1px solid rgba(47,224,192,.24);padding:5px 12px;border-radius:var(--r-badge);margin-bottom:22px;}
.hero h1{color:var(--text);}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--accent),#7de9ff);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin-top:20px;font-size:17px;color:var(--text-2);max-width:520px;}
.hero-actions{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-trust{margin-top:38px;display:flex;flex-wrap:wrap;gap:10px 26px;padding-top:26px;border-top:1px solid var(--line-soft);}
.hero-trust li{position:relative;padding-left:16px;font-size:13px;color:var(--text-3);}
.hero-trust li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero-trust li strong{display:block;font-size:14px;color:var(--text);font-weight:600;line-height:1.5;}
.hero-visual{position:relative;border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-deep);background:var(--bg-2);}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(15,12,27,.10) 0%,rgba(15,12,27,.52) 52%,rgba(15,12,27,.94) 100%);}
.hero-visual-card{position:absolute;left:20px;right:20px;bottom:20px;z-index:2;display:flex;flex-wrap:wrap;gap:12px;}
.hero-mini{flex:1 1 130px;background:rgba(23,19,41,.86);border:1px solid var(--line);border-radius:12px;padding:12px 14px;}
.hero-mini span{display:block;font-size:12px;color:var(--text-3);}
.hero-mini strong{display:block;font-size:19px;font-weight:800;color:var(--accent);letter-spacing:-.02em;margin-top:2px;}

/* 信任条 */
.trustbar{border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);background:var(--bg-1);}
.trustbar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:34px 0;}
.trust-item .num{font-size:26px;font-weight:800;color:var(--accent);letter-spacing:-.02em;font-variant-numeric:tabular-nums;}
.trust-item .lbl{margin-top:4px;font-size:14px;color:var(--text-2);}
.trust-item .sub{margin-top:2px;font-size:12px;color:var(--text-3);}

/* 卖点三连 */
.sell-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px;}
.sell-wide{grid-row:span 2;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-deep);display:flex;flex-direction:column;clip-path:polygon(12px 0,100% 0,100% 100%,0 100%,0 12px);}
.sell-wide img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-2);}
.sell-wide .body{padding:26px;}
.sell-wide h3{font-size:22px;margin-bottom:10px;}
.sell-wide p{color:var(--text-2);font-size:15px;}
.sell-num{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.14em;display:block;margin-bottom:12px;}
.sell-narrow{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-deep);transition:transform .2s var(--ease),border-color .2s var(--ease);display:flex;flex-direction:column;justify-content:center;}
.sell-narrow:hover{transform:translateY(-2px);border-color:rgba(47,224,192,.4);}
.sell-narrow h3{font-size:18px;margin-bottom:8px;}
.sell-narrow p{font-size:14px;color:var(--text-2);}
.sell-narrow .pill{margin-top:14px;align-self:flex-start;font-size:12px;color:var(--text-3);border:1px solid var(--line);border-radius:var(--r-badge);padding:3px 9px;}

/* 场景 / 栏目导航 */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.scene-card{background:#fff;border:1px solid var(--line-light);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-light);display:flex;flex-direction:column;transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);}
.scene-card:hover{transform:translateY(-2px);border-color:rgba(122,92,255,.45);box-shadow:0 18px 38px rgba(23,19,41,.14);}
.scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-light-2);}
.scene-card .body{padding:20px;display:flex;flex-direction:column;flex:1;}
.scene-card h3{font-size:17px;color:var(--dark);margin-bottom:8px;}
.scene-card p{font-size:14px;color:var(--dark-2);flex:1;}
.scene-card .go{margin-top:16px;font-size:13px;font-weight:700;color:var(--primary-deep);display:inline-flex;align-items:center;gap:6px;}
.scene-card:hover .go{color:var(--cta-2);}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{grid-column:span 1;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-deep);transition:transform .2s var(--ease),border-color .2s var(--ease);}
.news-card:hover{transform:translateY(-2px);border-color:rgba(47,224,192,.4);}
.news-card:first-child{grid-column:span 2;clip-path:polygon(12px 0,100% 0,100% 100%,0 100%,0 12px);}
.news-thumb{display:block;background:var(--bg-2);}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.news-card:first-child .news-thumb img{aspect-ratio:16/7;}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.news-title{margin-top:12px;font-size:17px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a{transition:color .2s var(--ease);}
.news-card:hover .news-title a{color:var(--accent);}
.news-desc{margin-top:10px;font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1;}
.news-foot{margin-top:18px;padding-top:14px;border-top:1px solid var(--line-soft);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3);}
.news-more{font-size:13px;font-weight:600;color:var(--accent);}
.news-more:hover{text-decoration:underline;text-underline-offset:3px;}
.empty-state{grid-column:1/-1;text-align:center;padding:64px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--bg-1);}
.empty-state .ico{width:46px;height:46px;margin:0 auto 16px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:20px;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:18px;}

/* 社会认同 */
.proof-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:24px;}
.proof-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow-deep);display:flex;flex-direction:column;transition:transform .2s var(--ease),border-color .2s var(--ease);}
.proof-card:hover{transform:translateY(-2px);border-color:rgba(47,224,192,.4);}
.proof-card .score{font-size:40px;font-weight:800;color:var(--accent);letter-spacing:-.03em;line-height:1.1;}
.proof-card .score small{font-size:15px;color:var(--text-3);font-weight:600;margin-left:4px;}
.proof-card .stars{display:flex;gap:4px;margin:12px 0 14px;}
.proof-card .stars i{width:14px;height:14px;background:var(--cta);display:block;clip-path:polygon(50% 0,61% 36%,100% 38%,69% 60%,79% 100%,50% 76%,21% 100%,31% 60%,0 38%,39% 36%);}
.proof-card blockquote{font-size:15px;color:var(--text-2);line-height:1.8;flex:1;}
.proof-card .who{margin-top:18px;padding-top:16px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--text-3);}
.proof-card .who b{display:block;color:var(--text);font-size:14px;font-weight:600;margin-bottom:2px;}
.proof-metric{display:flex;flex-direction:column;justify-content:space-between;}
.proof-metric ul{margin-top:18px;display:grid;gap:12px;}
.proof-metric li{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:14px;color:var(--text-2);border-bottom:1px dashed var(--line-soft);padding-bottom:10px;}
.proof-metric li:last-child{border-bottom:0;padding-bottom:0;}
.proof-metric li b{color:var(--accent);font-size:17px;font-weight:800;font-variant-numeric:tabular-nums;}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line-light);border-radius:12px;overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.faq-item.is-open{border-color:rgba(255,122,69,.5);box-shadow:var(--shadow-light);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;padding:20px 22px;font-size:16px;font-weight:600;color:var(--dark);position:relative;min-height:56px;}
.faq-q::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:0 2px 2px 0;background:var(--cta);opacity:0;transition:opacity .2s var(--ease);}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-icon{width:22px;height:22px;border-radius:50%;border:1px solid rgba(26,21,51,.2);position:relative;flex-shrink:0;transition:transform .24s var(--ease),border-color .24s var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--dark-2);border-radius:2px;}
.faq-icon::before{left:5px;right:5px;top:10px;height:2px;}
.faq-icon::after{top:5px;bottom:5px;left:10px;width:2px;transition:transform .24s var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(90deg);border-color:var(--cta);}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a p{padding:0 22px 22px 22px;font-size:15px;color:var(--dark-2);line-height:1.85;}

/* 底部 CTA */
.cta-band{background:linear-gradient(135deg,rgba(122,92,255,.18),rgba(47,224,192,.10)),var(--bg-1);border:1px solid var(--line);border-radius:var(--r-panel);padding:52px;display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;box-shadow:var(--shadow-deep);}
.cta-band h2{margin-bottom:12px;}
.cta-band p{color:var(--text-2);font-size:15px;max-width:520px;}
.cta-band .actions{display:flex;flex-direction:column;gap:12px;}
.cta-band .actions .btn{width:100%;}

/* 页脚 */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
.footer-col li+li{margin-top:10px;}
.footer-col a{font-size:14px;color:var(--text-2);border-bottom:2px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);}
.footer-col a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.footer-col .contact-line{font-size:14px;color:var(--text-2);}
.footer-col .contact-line b{color:var(--text);font-weight:600;}
.footer-bottom{border-top:1px solid var(--line-soft);padding:22px 0 96px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:13px;color:var(--text-3);}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--accent);}

/* 固定底部转化条 */
.float-bar{position:fixed;right:24px;bottom:24px;z-index:920;display:flex;align-items:center;gap:16px;background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-panel);padding:14px 16px;box-shadow:var(--shadow-deep);transform:translateY(140%);opacity:0;transition:transform .3s var(--ease),opacity .3s var(--ease);max-width:440px;}
.float-bar.is-visible{transform:translateY(0);opacity:1;}
.float-bar.is-hidden{transform:translateY(140%);opacity:0;pointer-events:none;}
.float-bar .txt{font-size:14px;font-weight:600;color:var(--text);}
.float-bar .btn{padding:10px 18px;font-size:14px;min-height:40px;}
.float-bar .close{width:30px;height:30px;border-radius:8px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--text-3);font-size:14px;line-height:1;flex-shrink:0;transition:color .2s var(--ease),border-color .2s var(--ease);}
.float-bar .close:hover{color:var(--accent);border-color:var(--accent);}

/* 骨架 / 加载 / 错误 状态 */
.skeleton{background:linear-gradient(90deg,var(--bg-2) 25%,rgba(122,92,255,.16) 37%,var(--bg-2) 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:8px;}
.skeleton-line{height:14px;margin-bottom:10px;}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}
.state-loading{display:flex;align-items:center;justify-content:center;gap:10px;font-size:14px;color:var(--text-2);padding:22px;}
.spinner{width:16px;height:16px;border-radius:50%;border:2px solid var(--line);border-top-color:var(--accent);animation:spin .8s linear infinite;}
@keyframes spin{to{transform:rotate(360deg)}}
.state-error{font-size:14px;color:#FF8F6B;border:1px solid rgba(255,95,46,.4);background:rgba(255,95,46,.08);border-radius:10px;padding:14px 16px;}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* 响应式 */
@media (max-width:1279px){
  .hero-grid{gap:40px;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .mega-panel{width:720px;}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .nav-main{display:none;}
  .nav-toggle{display:flex;}
  .mega-trigger{display:none;}
  .mega-panel{display:none;}
  .hero{padding:112px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-sub{max-width:none;}
  .trustbar-grid{grid-template-columns:repeat(2,1fr);}
  .sell-grid{grid-template-columns:1fr;}
  .sell-wide{grid-row:auto;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-card:first-child{grid-column:span 2;}
  .proof-grid{grid-template-columns:1fr 1fr;}
  .proof-card:first-child{grid-column:span 2;}
  .cta-band{grid-template-columns:1fr;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .hero{padding:100px 0 52px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-trust{flex-direction:column;gap:14px;}
  .scene-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .news-card:first-child{grid-column:span 1;}
  .news-card:first-child .news-thumb img{aspect-ratio:16/9;}
  .proof-grid{grid-template-columns:1fr;}
  .proof-card:first-child{grid-column:span 1;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .float-bar{right:12px;left:12px;bottom:calc(12px + env(safe-area-inset-bottom));max-width:none;justify-content:space-between;}
  .float-bar .txt{font-size:13px;}
  .float-bar .btn{padding:10px 14px;}
}
@media (max-width:479px){
  .brand-sub{display:none;}
  .nav-wrap{height:64px;gap:14px;}
  .hero{padding:90px 0 44px;}
  .hero-mini{flex:1 1 100%;}
  .trustbar-grid{grid-template-columns:1fr;}
  .cta-band{padding:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --bg-0:#0F0C1B;
  --bg-1:#171329;
  --bg-2:#1F1A35;
  --bg-light:#F6F4FF;
  --bg-light-2:#ECE8FC;
  --primary:#7A5CFF;
  --primary-deep:#5533E0;
  --accent:#2FE0C0;
  --cta:#FF7A45;
  --cta-2:#FF5F2E;
  --text:#F2EFFA;
  --text-2:#A9A2C7;
  --text-3:#6F6890;
  --line:rgba(122,92,255,.22);
  --line-soft:rgba(122,92,255,.14);
  --line-light:rgba(26,21,51,.10);
  --ink:#1A1533;
  --ink-2:#4A4468;
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:10px;
  --radius-badge:6px;
  --shadow-deep:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -22px rgba(0,0,0,.85);
  --shadow-soft:0 10px 30px rgba(23,19,41,.08);
  --tr:220ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--tr),border-color var(--tr),background var(--tr);}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:700;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;border:0;background:none;color:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(15,12,27,.92);
  border-bottom:1px solid transparent;
  transition:background var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.site-header.scrolled{
  background:var(--bg-0);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px -24px rgba(0,0,0,.9);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:72px;
}
.brand{display:flex;align-items:baseline;gap:8px;flex:0 0 auto;}
.brand-main{font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--text);}
.brand-sub{
  font-size:12px;
  font-weight:600;
  color:var(--accent);
  border:1px solid rgba(47,224,192,.42);
  background:rgba(47,224,192,.10);
  border-radius:var(--radius-badge);
  padding:2px 6px;
  line-height:1.4;
}
.nav-main{
  display:flex;
  align-items:center;
  gap:22px;
  flex:1 1 auto;
  min-width:0;
}
.nav-main a{
  font-size:15px;
  color:var(--text-2);
  padding:8px 0;
  position:relative;
  white-space:nowrap;
}
.nav-main a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--tr);
  border-radius:2px;
}
.nav-main a:hover{color:var(--text);}
.nav-main a:hover::after,.nav-main a.active::after{transform:scaleX(1);}
.nav-main a.active{color:var(--text);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  color:var(--text-2);
  padding:9px 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  transition:background var(--tr),color var(--tr),border-color var(--tr);
}
.mega-trigger:hover,.mega-wrap.open .mega-trigger{color:var(--text);background:var(--bg-2);border-color:var(--line);}
.caret{
  width:7px;height:7px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  transform:rotate(45deg) translateY(-2px);
  transition:transform var(--tr);
}
.mega-wrap.open .caret{transform:rotate(-135deg) translateY(-2px);}
.mega-panel{
  position:absolute;
  right:0;
  top:calc(100% + 14px);
  width:800px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  box-shadow:var(--shadow-deep);
  padding:24px;
  display:grid;
  grid-template-columns:1.1fr 1fr 1.3fr;
  gap:24px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity 120ms ease,transform 120ms ease,visibility 120ms;
}
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h5{
  font-size:12px;
  font-weight:600;
  color:var(--text-3);
  letter-spacing:.08em;
  margin:0 0 12px;
}
.mega-list li + li{margin-top:10px;}
.mega-list a{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-2);
}
.mega-list a::before{
  content:"";
  width:5px;height:5px;
  border-radius:2px;
  background:var(--accent);
  opacity:.5;
  transition:transform var(--tr),opacity var(--tr);
}
.mega-list a:hover{color:var(--accent);transform:translateX(4px);}
.mega-list a:hover::before{opacity:1;}
.mega-post{display:block;padding:10px 0;border-bottom:1px dashed var(--line-soft);}
.mega-post:last-child{border-bottom:0;}
.mega-post b{display:block;font-size:14px;font-weight:600;color:var(--text);line-height:1.5;}
.mega-post span{font-size:12px;color:var(--text-3);}
.mega-post:hover b{color:var(--accent);}
.mega-cards{display:grid;gap:12px;}
.mega-card{
  display:block;
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
  background:var(--bg-2);
}
.mega-card .thumb{aspect-ratio:16/9;background:var(--bg-2);overflow:hidden;}
.mega-card img{width:100%;height:100%;object-fit:cover;transition:transform var(--tr);}
.mega-card:hover img{transform:scale(1.04);}
.mega-card b{display:block;font-size:14px;padding:10px 12px 12px;color:var(--text);}
.mega-card:hover b{color:var(--accent);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  position:relative;
}
.nav-toggle span{
  position:absolute;
  left:12px;right:12px;
  height:2px;
  background:var(--text);
  border-radius:2px;
  transition:transform var(--tr),opacity var(--tr);
}
.nav-toggle span:nth-child(1){top:15px;}
.nav-toggle span:nth-child(2){top:21px;}
.nav-toggle span:nth-child(3){top:27px;}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.drawer{
  display:none;
  position:fixed;
  inset:72px 0 0 0;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:20px 24px 96px;
  overflow-y:auto;
  z-index:79;
}
.drawer.open{display:block;}
.drawer a.drawer-link{
  display:flex;
  align-items:center;
  min-height:48px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
}
.drawer a.drawer-link.active,.drawer a.drawer-link:hover{color:var(--accent);}
.drawer details{border-bottom:1px solid var(--line-soft);}
.drawer summary{
  min-height:48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:16px;
  color:var(--text);
  cursor:pointer;
  list-style:none;
}
.drawer summary::-webkit-details-marker{display:none;}
.drawer summary::after{content:"+";color:var(--accent);font-size:18px;}
.drawer details[open] summary::after{content:"–";}
.drawer .sub{padding:4px 0 12px;}
.drawer .sub a{display:flex;align-items:center;min-height:44px;font-size:15px;color:var(--text-2);}
.drawer .sub a:hover{color:var(--accent);}
.drawer-cta{margin-top:20px;}

/* ============ buttons ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  transition:transform var(--tr),background var(--tr),color var(--tr),border-color var(--tr),box-shadow var(--tr);
  white-space:nowrap;
}
.btn-sm{padding:11px 18px;font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,var(--cta),var(--cta-2));
  color:#fff;
  box-shadow:0 12px 26px -16px rgba(255,95,46,.9);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  border-color:var(--primary);
  color:var(--text);
  background:rgba(122,92,255,.08);
}
.btn-ghost:hover{background:rgba(122,92,255,.2);transform:translateY(-2px);}
.btn-quiet{
  border-color:var(--line);
  color:var(--text-2);
  background:var(--bg-1);
}
.btn-quiet:hover{color:var(--text);border-color:var(--accent);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}

/* ============ badges ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:var(--radius-badge);
  font-size:12px;
  font-weight:600;
  line-height:1.6;
}
.badge-cat{color:var(--accent);background:rgba(47,224,192,.12);}
.badge-time{color:var(--text-2);border:1px solid var(--line);}

/* ============ article hero ============ */
.article-hero{
  position:relative;
  padding:44px 0 40px;
  background:
    linear-gradient(180deg,rgba(31,26,53,.86) 0%,rgba(15,12,27,.96) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:var(--text-3);opacity:.7;}
.crumbs .now{
  color:var(--text-2);
  max-width:340px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.article-hero h1{
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.22;
  font-weight:800;
  margin:14px 0 18px;
  max-width:940px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--text-3);}
.meta-row .dot{width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.7;}
.meta-row b{color:var(--text-2);font-weight:600;}

/* ============ layout ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:48px;
  padding-top:56px;
  padding-bottom:72px;
  align-items:start;
}
.article-body{min-width:0;}
.article-body-inner{max-width:780px;}

/* ============ prose ============ */
.prose{font-size:17px;line-height:1.9;color:var(--text-2);}
.prose > *:first-child{margin-top:0;}
.prose h2{
  position:relative;
  font-size:clamp(20px,2.2vw,26px);
  line-height:1.4;
  color:var(--text);
  margin:44px 0 16px;
  padding-left:14px;
}
.prose h2::before{
  content:"";
  position:absolute;
  left:0;top:.28em;bottom:.28em;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--cta),var(--cta-2));
}
.prose h3{font-size:20px;line-height:1.5;color:var(--text);margin:32px 0 12px;}
.prose h4{font-size:17px;color:var(--text);margin:24px 0 10px;}
.prose p{margin:0 0 1.1em;color:var(--text-2);}
.prose a{color:var(--accent);border-bottom:1px solid rgba(47,224,192,.4);}
.prose a:hover{border-bottom-color:var(--accent);}
.prose strong{color:var(--text);font-weight:600;}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:0;}
.prose ul li{position:relative;padding-left:22px;margin-bottom:8px;}
.prose ul li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--accent);
  opacity:.85;
}
.prose ol{counter-reset:li;}
.prose ol li{position:relative;padding-left:28px;margin-bottom:8px;counter-increment:li;}
.prose ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;
  left:0;top:0;
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}
.prose blockquote{
  margin:24px 0;
  padding:16px 20px;
  border-left:4px solid var(--cta);
  background:var(--bg-1);
  border-radius:0 12px 12px 0;
  color:var(--text-2);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:12px;margin:22px 0;background:var(--bg-2);}
.prose figure{margin:22px 0;}
.prose figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;}
.prose table{
  width:100%;
  border-collapse:collapse;
  margin:22px 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
}
.prose th,.prose td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line-soft);}
.prose thead th{background:var(--bg-2);color:var(--text);font-weight:600;}
.prose tbody tr:nth-child(even){background:rgba(31,26,53,.45);}
.prose code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:14px;
  background:var(--bg-2);
  border:1px solid var(--line-soft);
  border-radius:6px;
  padding:2px 6px;
  color:var(--accent);
}
.prose pre{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px 18px;
  overflow-x:auto;
  margin:22px 0;
  font-size:14px;
  line-height:1.7;
}
.prose pre code{background:none;border:0;padding:0;color:var(--text-2);}
.prose hr{border:0;border-top:1px solid var(--line-soft);margin:32px 0;}

/* ============ article footer bits ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 0;padding-top:24px;border-top:1px solid var(--line);}
.tag{
  font-size:13px;
  color:var(--text-2);
  border:1px solid var(--line);
  border-radius:var(--radius-badge);
  padding:5px 12px;
}
.tag:hover{color:var(--accent);border-color:rgba(47,224,192,.5);}
.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.empty-state{
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  background:var(--bg-1);
  box-shadow:var(--shadow-deep);
  padding:48px 28px;
  text-align:center;
}
.empty-state .ico{
  width:52px;height:52px;
  margin:0 auto 16px;
  border-radius:14px;
  border:1px solid var(--line);
  background:var(--bg-2);
  display:flex;align-items:center;justify-content:center;
  color:var(--accent);
  font-size:22px;
  font-family:ui-monospace,monospace;
}
.empty-state h2{font-size:22px;color:var(--text);margin-bottom:10px;}
.empty-state p{color:var(--text-2);margin-bottom:20px;}

/* ============ aside ============ */
.aside{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--bg-1);
  box-shadow:var(--shadow-deep);
  padding:22px;
  clip-path:polygon(14px 0,100% 0,100% 100%,0 100%,0 14px);
}
.side-card h3{font-size:16px;color:var(--text);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:3px;background:var(--accent);}
.side-list li + li{margin-top:12px;}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
  border-bottom:1px dashed var(--line-soft);
}
.side-list a:hover{color:var(--accent);}
.side-list span{font-size:12px;color:var(--text-3);}
.side-cta{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:linear-gradient(150deg,var(--bg-2),var(--bg-1));
  padding:22px;
  box-shadow:var(--shadow-deep);
}
.side-cta b{display:block;font-size:17px;color:var(--text);margin-bottom:8px;}
.side-cta p{font-size:14px;color:var(--text-2);margin-bottom:16px;}
.side-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:13px;
  color:var(--accent);
  letter-spacing:.1em;
}

/* ============ related ============ */
.related{padding:0 0 72px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.section-head h2{font-size:clamp(22px,2.4vw,28px);color:var(--text);}
.section-head p{font-size:14px;color:var(--text-3);margin:6px 0 0;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rel-card{
  display:flex;
  gap:14px;
  align-items:flex-start;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--bg-1);
  box-shadow:var(--shadow-deep);
  padding:14px;
  transition:transform var(--tr),border-color var(--tr);
}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(47,224,192,.4);}
.rel-card .thumb{
  width:96px;
  flex:0 0 96px;
  aspect-ratio:4/3;
  border-radius:10px;
  overflow:hidden;
  background:var(--bg-2);
}
.rel-card img{width:100%;height:100%;object-fit:cover;}
.rel-card b{display:block;font-size:15px;color:var(--text);line-height:1.5;margin:6px 0 8px;}
.rel-card:hover b{color:var(--accent);}
.rel-card small{font-size:12px;color:var(--text-3);}

/* ============ cta band ============ */
.cta-band{
  border-top:1px solid var(--line);
  background:linear-gradient(140deg,var(--bg-1),var(--bg-0) 65%);
  padding:64px 0;
}
.cta-band .inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  background:var(--bg-2);
  box-shadow:var(--shadow-deep);
  padding:34px;
}
.cta-band h2{font-size:clamp(20px,2.4vw,28px);color:var(--text);margin-bottom:8px;}
.cta-band p{font-size:15px;color:var(--text-2);margin:0;max-width:560px;}
.cta-band .acts{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ footer ============ */
.site-footer{border-top:1px solid var(--line);background:var(--bg-0);padding:56px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px;border-bottom:1px solid var(--line-soft);}
.footer-brand .brand{display:flex;align-items:baseline;gap:8px;margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:340px;margin:0;}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:14px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a,.contact-line{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--accent);border-bottom:2px solid var(--accent);padding-bottom:2px;}
.contact-line b{color:var(--text);font-weight:600;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:20px;font-size:13px;color:var(--text-3);}

/* ============ fixed bar ============ */
.fixed-bar{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:90;
  display:flex;
  align-items:center;
  gap:14px;
  padding:12px 14px 12px 20px;
  border-radius:14px;
  background:linear-gradient(135deg,var(--cta),var(--cta-2));
  color:#fff;
  box-shadow:0 20px 40px -20px rgba(255,95,46,.95);
  transform:translateY(140%);
  transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  max-width:calc(100% - 48px);
}
.fixed-bar.show{transform:translateY(0);}
.fixed-bar span{font-size:14px;font-weight:600;white-space:nowrap;}
.fixed-bar .bar-cta{
  background:#fff;
  color:#C93C10;
  font-weight:700;
  font-size:14px;
  padding:9px 16px;
  border-radius:9px;
  white-space:nowrap;
}
.fixed-bar .bar-close{
  width:28px;height:28px;
  border-radius:8px;
  background:rgba(255,255,255,.18);
  font-size:15px;
  line-height:1;
}

/* ============ states ============ */
.skeleton{
  background:linear-gradient(90deg,var(--bg-2) 25%,rgba(122,92,255,.16) 37%,var(--bg-2) 63%);
  background-size:400% 100%;
  border-radius:10px;
  animation:sk 1.4s ease-in-out infinite;
  min-height:14px;
}
@keyframes sk{0%{background-position:100% 50%;}100%{background-position:0 50%;}}
.state-loading{display:flex;align-items:center;gap:10px;color:var(--text-3);font-size:14px;padding:16px 0;}
.spinner{
  width:16px;height:16px;
  border-radius:50%;
  border:2px solid var(--line);
  border-top-color:var(--accent);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}
.state-error{
  border:1px solid rgba(255,95,46,.5);
  background:rgba(255,95,46,.08);
  color:#FFB59A;
  font-size:14px;
  border-radius:10px;
  padding:12px 16px;
}

/* ============ responsive ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px;}
  .mega-panel{width:720px;}
}
@media (max-width:1023px){
  .nav-main{display:none;}
  .nav-toggle{display:block;}
  .mega-wrap{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;}
  .aside{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
  .aside .side-cta{grid-column:1 / -1;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .header-inner{min-height:64px;gap:14px;}
  .brand-main{font-size:18px;}
  .nav-actions .btn-primary{display:none;}
  .drawer{inset:64px 0 0 0;}
  .article-hero{padding:30px 0 28px;}
  .article-layout{padding-top:36px;padding-bottom:52px;}
  .prose{font-size:16px;line-height:1.85;}
  .aside{grid-template-columns:minmax(0,1fr);}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:44px 0;}
  .cta-band .inner{padding:24px;}
  .site-footer{padding:40px 0 20px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px;}
  .fixed-bar{
    left:0;right:0;bottom:0;
    border-radius:14px 14px 0 0;
    padding:12px 14px calc(12px + env(safe-area-inset-bottom));
    max-width:none;
    justify-content:space-between;
  }
}
@media (max-width:519px){
  .article-hero h1{font-size:24px;}
  .crumbs .now{max-width:180px;}
  .rel-card .thumb{width:80px;flex:0 0 80px;}
  .back-row .btn{width:100%;}
  .fixed-bar span{font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --bg-0:#0F0C1B;
  --bg-1:#171329;
  --bg-2:#1F1A35;
  --bg-light:#F6F4FF;
  --bg-light-2:#ECE8FC;
  --primary:#7A5CFF;
  --primary-deep:#5533E0;
  --accent:#2FE0C0;
  --cta:#FF7A45;
  --cta-2:#FF5F2E;
  --text:#F2EFFA;
  --text-2:#A9A2C7;
  --text-3:#6F6890;
  --ink:#1A1533;
  --ink-2:#4A4468;
  --line:rgba(122,92,255,.22);
  --line-light:rgba(26,21,51,.10);
  --r-card:16px;
  --r-panel:20px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-dark:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -22px rgba(0,0,0,.85);
  --shadow-light:0 10px 30px rgba(23,19,41,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
::selection{background:rgba(47,224,192,.28);}

.container{
  width:100%;
  max-width:1248px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-light{background:var(--bg-light);color:var(--ink);}
.section-light .text-2{color:var(--ink-2);}
.section-alt{background:var(--bg-1);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:13px 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  letter-spacing:0;
  border:1px solid transparent;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--cta),var(--cta-2));
  color:#fff;
  box-shadow:0 12px 26px -14px rgba(255,95,46,.9);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);filter:brightness(1);}
.btn-ghost{
  border-color:rgba(122,92,255,.55);
  color:var(--text);
  background:rgba(122,92,255,.08);
}
.btn-ghost:hover{background:rgba(122,92,255,.2);border-color:var(--primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-dark-ghost{border-color:rgba(26,21,51,.22);color:var(--ink);background:transparent;}
.btn-dark-ghost:hover{background:rgba(26,21,51,.06);transform:translateY(-2px);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.btn-sm{min-height:40px;padding:10px 18px;font-size:14px;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:var(--r-badge);
  font-size:12px;
  line-height:1.4;
  color:var(--accent);
  background:rgba(47,224,192,.12);
  border:1px solid rgba(47,224,192,.24);
  white-space:nowrap;
}
.badge-neutral{
  color:var(--text-2);
  background:transparent;
  border:1px solid rgba(169,162,199,.32);
}
.section-light .badge-neutral{color:var(--ink-2);border-color:rgba(26,21,51,.18);}
.badge-cta{
  color:#FFD9C9;
  background:rgba(255,122,69,.14);
  border:1px solid rgba(255,122,69,.4);
}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:120;
  background:rgba(15,12,27,.86);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-stuck{background:#0F0C1B;border-bottom-color:var(--line);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:72px;
}
.brand{display:flex;align-items:baseline;gap:6px;flex:0 0 auto;}
.brand-main{font-size:19px;font-weight:800;letter-spacing:-.01em;color:#fff;}
.brand-sub{
  font-size:12px;
  color:var(--accent);
  border:1px solid rgba(47,224,192,.36);
  border-radius:4px;
  padding:1px 5px;
  line-height:1.5;
}
.nav-main{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
}
.nav-main a{
  position:relative;
  padding:9px 12px;
  border-radius:8px;
  font-size:14.5px;
  color:var(--text-2);
  white-space:nowrap;
}
.nav-main a:hover{color:#fff;background:rgba(122,92,255,.14);}
.nav-main a.active{color:#fff;background:rgba(122,92,255,.18);}
.nav-main a.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.header-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:7px;
  min-height:44px;
  padding:9px 14px;
  border-radius:8px;
  font-size:14.5px;
  color:var(--text-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.mega-trigger:hover{color:#fff;background:rgba(122,92,255,.14);}
.mega-wrap.is-open .mega-trigger{color:#fff;background:var(--bg-2);}
.mega-trigger .caret{
  width:8px;height:8px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  transform:rotate(45deg) translateY(-2px);
  transition:transform .22s var(--ease);
}
.mega-wrap.is-open .caret{transform:rotate(225deg) translateY(-1px);}
.mega-panel{
  position:absolute;
  top:calc(100% + 12px);
  right:0;
  width:820px;
  padding:24px;
  display:grid;
  grid-template-columns:1fr 1fr 1.25fr;
  gap:24px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--shadow-dark);
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h5{
  margin:0 0 12px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--text-3);
  text-transform:uppercase;
}
.mega-list li+li{margin-top:2px;}
.mega-list a{
  display:block;
  padding:8px 10px;
  border-radius:8px;
  font-size:14px;
  color:var(--text-2);
}
.mega-list a:hover{color:var(--accent);background:rgba(47,224,192,.08);transform:translateX(4px);}
.mega-news li{padding:10px 0;border-bottom:1px dashed rgba(122,92,255,.2);}
.mega-news li:last-child{border-bottom:0;}
.mega-news a{display:block;font-size:14px;color:var(--text);line-height:1.5;}
.mega-news a:hover{color:var(--accent);}
.mega-news span{display:block;margin-top:4px;font-size:12px;color:var(--text-3);}
.mega-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.mega-card{
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  background:var(--bg-2);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.mega-card:hover{border-color:rgba(47,224,192,.5);transform:translateY(-2px);}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-2);}
.mega-card b{display:block;padding:10px;font-size:13px;font-weight:600;line-height:1.4;}
.burger{
  display:none;
  width:44px;height:44px;
  border-radius:8px;
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
}
.burger span{display:block;width:18px;height:2px;background:var(--text);position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.drawer{
  position:fixed;
  inset:72px 0 0 0;
  z-index:110;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:20px 20px 96px;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .26s var(--ease);
  display:none;
}
.drawer.is-open{transform:translateX(0);}
.drawer a{display:block;min-height:48px;line-height:48px;border-bottom:1px solid rgba(122,92,255,.14);font-size:16px;}
.drawer a.active{color:var(--accent);}
.drawer .drawer-cta{margin-top:20px;}
.drawer .drawer-cta a{border-bottom:0;line-height:1;}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-3);
  padding-top:32px;
}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:var(--text-3);opacity:.6;}
.crumb .current{color:var(--text-2);}

/* ============ 分类页首屏 ============ */
.cat-hero{
  padding:24px 0 88px;
  background:
    radial-gradient(120% 90% at 88% 0%,rgba(122,92,255,.22),transparent 60%),
    radial-gradient(70% 60% at 0% 100%,rgba(47,224,192,.12),transparent 65%),
    var(--bg-0);
}
.cat-hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
  padding-top:36px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--accent);
  letter-spacing:.06em;
}
.eyebrow::before{
  content:"";
  width:18px;height:2px;background:var(--accent);border-radius:2px;
}
h1{
  margin:16px 0 18px;
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.01em;
}
h1 em{font-style:normal;color:var(--accent);}
.cat-hero p.lead{
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-2);
  max-width:44em;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:22px 0 28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-note{margin-top:14px;font-size:13px;color:var(--text-3);}
.cat-hero-media{position:relative;}
.cat-hero-media .frame{
  position:relative;
  border-radius:var(--r-panel);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-dark);
  background:var(--bg-2);
}
.cat-hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.cat-hero-media .frame::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(85,51,224,.42),rgba(15,12,27,.85) 78%);
}
.cat-hero-media .caption{
  position:absolute;
  left:20px;right:20px;bottom:18px;
  z-index:2;
  font-size:13px;
  color:rgba(242,239,250,.86);
  line-height:1.6;
}
.cat-hero-media .tag-float{
  position:absolute;
  top:16px;left:16px;
  z-index:2;
}

/* ============ 数据条 ============ */
.stat-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--gap);
  margin-top:56px;
}
.stat-item{
  padding:22px 20px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-dark);
  clip-path:polygon(12px 0,100% 0,100% 100%,0 100%,0 12px);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.stat-item:hover{transform:translateY(-2px);border-color:rgba(47,224,192,.42);}
.stat-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:30px;
  font-weight:700;
  line-height:1.1;
  color:var(--accent);
}
.stat-label{margin-top:8px;font-size:14px;color:var(--text);font-weight:600;}
.stat-desc{margin-top:4px;font-size:13px;color:var(--text-3);line-height:1.6;}

/* ============ 通用板块标题 ============ */
.section-head{max-width:720px;margin-bottom:40px;}
.section-head .eyebrow{margin-bottom:12px;}
h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px;line-height:1.85;}
.section-light h2{color:var(--ink);}
.section-light .section-head p{color:var(--ink-2);}

/* ============ 左右分栏图文 ============ */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
}
.split-media{
  border-radius:var(--r-panel);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-dark);
  background:var(--bg-2);
}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.split-media .media-note{
  padding:14px 18px;
  font-size:13px;
  color:var(--text-3);
  border-top:1px solid var(--line);
  background:var(--bg-1);
}
.tier-list{display:grid;gap:14px;}
.tier-item{
  display:flex;
  gap:16px;
  padding:20px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-dark);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.tier-item:hover{transform:translateY(-2px);border-color:rgba(47,224,192,.45);}
.tier-no{
  flex:0 0 auto;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;
  font-weight:700;
  color:var(--accent);
  padding-top:2px;
}
.tier-body h3{font-size:18px;font-weight:600;color:#fff;}
.tier-body p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--text-2);}
.tier-body .tier-tags{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 步骤流程 ============ */
.step-flow{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:var(--gap);
  counter-reset:step;
}
.step-card{
  position:relative;
  padding:22px 18px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.step-card:hover{transform:translateY(-2px);border-color:rgba(122,92,255,.5);}
.step-card .num{
  display:block;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.08em;
}
.step-card h3{margin-top:10px;font-size:17px;font-weight:600;color:#fff;}
.step-card p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--text-2);}
.step-card::after{
  content:"";
  position:absolute;
  top:34px;right:-14px;
  width:14px;height:1px;
  background:rgba(122,92,255,.4);
}
.step-card:last-child::after{display:none;}

/* ============ 浅色区的清单块 ============ */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:var(--gap);
}
.check-item{
  display:flex;
  gap:14px;
  padding:20px 22px;
  background:#fff;
  border:1px solid var(--line-light);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-light);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.check-item:hover{transform:translateY(-2px);border-color:rgba(122,92,255,.4);}
.check-item .mark{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:8px;
  background:rgba(47,224,192,.16);
  color:#0E8E7A;
  font-size:14px;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.check-item h3{font-size:16.5px;font-weight:600;color:var(--ink);}
.check-item p{margin-top:6px;font-size:14.5px;line-height:1.8;color:var(--ink-2);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line-light);
  border-radius:14px;
  box-shadow:var(--shadow-light);
  overflow:hidden;
}
.faq-item summary{
  position:relative;
  display:block;
  padding:20px 56px 20px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;top:18px;bottom:18px;
  width:3px;
  background:var(--cta-2);
  opacity:0;
  transition:opacity .2s var(--ease);
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary::after{
  content:"";
  position:absolute;
  right:24px;top:50%;
  width:9px;height:9px;
  border-right:2px solid var(--ink-2);
  border-bottom:2px solid var(--ink-2);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .22s var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(225deg);}
.faq-item .answer{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
}

/* ============ 延伸入口卡组 ============ */
.entry-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr;
  grid-auto-rows:auto;
  gap:var(--gap);
}
.entry-card{
  display:flex;
  flex-direction:column;
  padding:24px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-dark);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.entry-card:hover{transform:translateY(-2px);border-color:rgba(47,224,192,.45);}
.entry-card:hover h3{color:var(--accent);}
.entry-card h3{font-size:18px;font-weight:600;color:#fff;transition:color .2s var(--ease);}
.entry-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-2);}
.entry-card .entry-foot{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-3);}
.entry-card.wide{
  grid-row:span 1;
  overflow:hidden;
  padding:0;
}
.entry-card.wide img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-2);}
.entry-card.wide .entry-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.entry-card.wide .entry-body .entry-foot{margin-top:auto;padding-top:18px;}

/* ============ 底部 CTA 带 ============ */
.cta-band{
  background:linear-gradient(120deg,#241C48,#0F0C1B 62%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:72px 0;
}
.cta-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:28px;
}
.cta-inner h2{max-width:20em;}
.cta-inner p{margin-top:12px;color:var(--text-2);font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-2);max-width:34em;}
.footer-col h4{margin:0 0 16px;font-size:14px;font-weight:600;color:#fff;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:2px;}
.contact-line{font-size:14px;color:var(--text-2);line-height:1.7;}
.contact-line b{color:var(--text);font-weight:600;}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(122,92,255,.18);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 固定底部转化条 ============ */
.float-bar{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:130;
  display:flex;
  align-items:center;
  gap:16px;
  padding:14px 16px 14px 20px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow-dark);
  transform:translateY(140%);
  transition:transform .26s var(--ease);
  max-width:calc(100vw - 48px);
}
.float-bar.is-visible{transform:translateY(0);}
.float-bar .fb-text{font-size:14px;color:var(--text);font-weight:600;}
.float-bar .fb-close{
  width:32px;height:32px;
  border-radius:8px;
  color:var(--text-3);
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;
  line-height:1;
}
.float-bar .fb-close:hover{color:#fff;border-color:var(--accent);}

/* ============ 状态样式 ============ */
.skeleton{
  border-radius:10px;
  background:linear-gradient(90deg,rgba(122,92,255,.12),rgba(122,92,255,.24),rgba(122,92,255,.12));
  background-size:200% 100%;
  animation:sk 1.4s linear infinite;
  min-height:14px;
}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}
.state-empty,.state-loading,.state-error{
  padding:32px 24px;
  border-radius:var(--r-card);
  border:1px dashed rgba(122,92,255,.34);
  text-align:center;
  font-size:14.5px;
  color:var(--text-2);
  background:rgba(122,92,255,.06);
}
.state-error{border-color:rgba(255,95,46,.5);color:#FFC4AE;background:rgba(255,95,46,.08);}
.state-loading{border-style:solid;color:var(--text-3);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1104px;}
  .mega-panel{width:720px;}
  .stat-row{grid-template-columns:repeat(4,1fr);}
  .step-flow{grid-template-columns:repeat(5,1fr);}
}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .nav-main{display:none;}
  .burger{display:flex;}
  .drawer{display:block;}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px;}
  .cat-hero-media{order:2;}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:32px;}
  .step-flow{grid-template-columns:repeat(2,1fr);}
  .step-card::after{display:none;}
  .check-grid{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .site-header .container{padding:0 16px;}
  .header-inner{gap:12px;}
  .header-right .btn{display:none;}
  .cat-hero{padding:8px 0 56px;}
  .cat-hero-grid{padding-top:20px;}
  h1{font-size:clamp(26px,7vw,34px);}
  .hero-actions .btn{width:100%;}
  .stat-row{grid-template-columns:1fr 1fr;gap:16px;}
  .stat-item{padding:18px 16px;}
  .stat-num{font-size:24px;}
  .step-flow{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:1fr;}
  .cta-band{padding:56px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;}
  .float-bar{
    left:0;right:0;bottom:0;
    max-width:none;
    border-radius:14px 14px 0 0;
    border-left:0;border-right:0;border-bottom:0;
    padding:12px 16px calc(12px + env(safe-area-inset-bottom));
    justify-content:space-between;
  }
  .float-bar .fb-text{font-size:13.5px;}
}
@media (max-width:479px){
  .stat-row{grid-template-columns:1fr;}
  .mega-cards{grid-template-columns:1fr;}
  .tier-item{padding:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --bg-0:#0F0C1B;
  --bg-1:#171329;
  --bg-2:#1F1A35;
  --bg-light:#F6F4FF;
  --bg-light-2:#ECE8FC;
  --primary:#7A5CFF;
  --primary-deep:#5533E0;
  --accent:#2FE0C0;
  --cta:#FF7A45;
  --cta-2:#FF5F2E;
  --text:#F2EFFA;
  --text-2:#A9A2C7;
  --text-3:#6F6890;
  --ink:#1A1533;
  --ink-2:#4A4468;
  --line:rgba(122,92,255,.22);
  --line-strong:rgba(122,92,255,.42);
  --line-light:rgba(26,21,51,.10);
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:10px;
  --radius-badge:6px;
  --shadow-dark:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -22px rgba(0,0,0,.85);
  --shadow-light:0 10px 30px rgba(23,19,41,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --section-gap:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:rgba(122,92,255,.45);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.mono{font-variant-numeric:tabular-nums;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(15,12,27,.72);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{background:#100D1D;border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:flex;align-items:baseline;gap:6px;flex:0 0 auto;padding:6px 0}
.brand-main{font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--text)}
.brand-sub{
  font-size:11px;font-weight:600;color:var(--accent);
  background:rgba(47,224,192,.12);
  border:1px solid rgba(47,224,192,.3);
  border-radius:var(--radius-badge);
  padding:2px 6px;letter-spacing:.06em;
}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1 1 auto}
.nav-main a{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 12px;border-radius:8px;
  font-size:15px;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-main a:hover{color:var(--text);background:rgba(122,92,255,.14)}
.nav-main a.active{color:var(--text);background:rgba(122,92,255,.18)}
.nav-main a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--accent);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--radius-btn);
  font-size:14px;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.mega-trigger:hover{color:var(--text);background:var(--bg-2);border-color:var(--line-strong)}
.mega-trigger .caret{font-size:10px;transition:transform .22s var(--ease)}
.mega-wrap{position:relative}
.mega-wrap.open .mega-trigger{background:var(--bg-2);color:var(--text);border-color:var(--line-strong)}
.mega-wrap.open .caret{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:800px;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-panel);
  box-shadow:var(--shadow-dark);padding:22px;
  display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h5{
  font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--text-3);
  margin:0 0 12px;text-transform:uppercase;
}
.mega-links li a{
  display:block;padding:7px 0;font-size:14px;color:var(--text-2);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.mega-links li a:hover{color:var(--accent);transform:translateX(4px)}
.mega-news li{padding:8px 0;border-bottom:1px dashed var(--line)}
.mega-news li:last-child{border-bottom:0}
.mega-news a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease)}
.mega-news a:hover{color:var(--accent)}
.mega-news time{display:block;font-size:12px;color:var(--text-3);margin-top:2px}
.mega-cards{display:grid;gap:12px}
.mega-card{
  display:block;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  background:var(--bg-2);transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.mega-card:hover{border-color:rgba(47,224,192,.4);transform:translateY(-2px)}
.mega-card .thumb{aspect-ratio:16/9;background:var(--bg-2)}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover}
.mega-card span{display:block;padding:10px 12px;font-size:13px;color:var(--text-2)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s var(--ease),filter .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
  min-height:44px;
}
.btn-primary{background:linear-gradient(135deg,var(--cta),var(--cta-2));color:#fff}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--text)}
.btn-ghost:hover{background:rgba(122,92,255,.16);border-color:var(--accent);color:#fff}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px}
.btn[disabled]{opacity:.45;cursor:not-allowed}

.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s var(--ease)}
.burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Mobile drawer ---------- */
.drawer{
  position:fixed;inset:72px 0 0;z-index:70;background:var(--bg-0);
  padding:20px 0 96px;overflow-y:auto;
  transform:translateX(100%);transition:transform .26s var(--ease);
}
.drawer.is-open{transform:translateX(0)}
.drawer a{display:block;min-height:48px;line-height:48px;padding:0 4px;font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer a.active{color:var(--accent)}
.drawer .drawer-cta{margin-top:20px}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;margin-top:72px;padding:72px 0 64px;
  background-image:linear-gradient(90deg,rgba(15,12,27,.96) 0%,rgba(15,12,27,.82) 46%,rgba(21,16,42,.62) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.crumbs{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:var(--text-3);margin-bottom:20px}
.crumbs a{color:var(--text-2);transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{color:var(--text-3)}
.hero-grid{display:grid;grid-template-columns:1.25fr .9fr;gap:48px;align-items:end}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--accent);background:rgba(47,224,192,.12);
  border-radius:var(--radius-badge);padding:6px 10px;margin-bottom:18px;
}
.eyebrow i{width:6px;height:6px;background:var(--accent);border-radius:50%;display:inline-block}
h1{
  font-size:clamp(30px,4.6vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.01em;
  margin-bottom:18px;
}
h1 em{font-style:normal;color:var(--accent)}
.hero-lead{font-size:17px;line-height:1.85;color:var(--text-2);max-width:640px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--text-2);
  border:1px solid var(--line);border-radius:var(--radius-badge);padding:5px 10px;
}
.hero-side{
  border:1px solid var(--line);border-radius:var(--radius-panel);overflow:hidden;
  background:var(--bg-1);box-shadow:var(--shadow-dark);
}
.hero-side .pic{aspect-ratio:4/3;background:var(--bg-2)}
.hero-side .pic img{width:100%;height:100%;object-fit:cover}
.hero-side .cap{padding:16px 18px;font-size:13px;color:var(--text-2);border-top:1px solid var(--line)}
.hero-side .cap b{color:var(--accent);font-weight:600}

/* ---------- Sections ---------- */
section{padding:var(--section-gap) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em;
  position:relative;padding-left:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--cta),var(--cta-2));
}
.section-head p{font-size:15px;color:var(--text-2);max-width:560px;margin-top:10px;padding-left:14px}
.section-head .more{font-size:14px;color:var(--accent);white-space:nowrap;transition:opacity .2s var(--ease)}
.section-head .more:hover{opacity:.75}
.section-dark{background:var(--bg-0)}
.section-panel{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-light{background:var(--bg-light);color:var(--ink)}
.section-light .section-head h2{color:var(--ink)}
.section-light .section-head p{color:var(--ink-2)}

/* ---------- Data bar ---------- */
.data-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--radius-panel);
  background:var(--bg-1);overflow:hidden;box-shadow:var(--shadow-dark);
}
.data-cell{padding:26px 24px;border-right:1px solid var(--line);position:relative}
.data-cell:last-child{border-right:0}
.data-cell .num{
  font-size:30px;font-weight:800;letter-spacing:-.02em;color:var(--accent);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;line-height:1.1;
}
.data-cell .num small{font-size:14px;font-weight:600;margin-left:4px;color:var(--text-2)}
.data-cell .label{font-size:15px;font-weight:600;margin-top:8px;color:var(--text)}
.data-cell .desc{font-size:13px;color:var(--text-3);margin-top:4px;line-height:1.6}

/* ---------- Matrix cards ---------- */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.m-card{
  position:relative;background:var(--bg-1);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-dark);
  clip-path:polygon(12px 0,100% 0,100% 100%,0 100%,0 12px);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.m-card:hover{border-color:rgba(47,224,192,.4);transform:translateY(-2px)}
.m-card.wide{grid-column:span 2;display:grid;grid-template-columns:1.05fr .95fr;gap:22px;align-items:center}
.m-card .idx{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.08em;
}
.m-card h3{font-size:21px;line-height:1.4;font-weight:600;margin:10px 0 10px;color:var(--text)}
.m-card p{font-size:14.5px;color:var(--text-2)}
.m-card .pic{border-radius:12px;overflow:hidden;background:var(--bg-2);aspect-ratio:16/9}
.m-card .pic img{width:100%;height:100%;object-fit:cover}
.m-card .mini-list{margin-top:14px;display:grid;gap:8px}
.m-card .mini-list li{
  font-size:13.5px;color:var(--text-2);padding-left:16px;position:relative;line-height:1.7;
}
.m-card .mini-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;background:var(--accent);border-radius:2px;
}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;background:var(--bg-1);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.step:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.step .step-no{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:26px;font-weight:800;color:var(--primary);line-height:1;
}
.step h3{font-size:17px;font-weight:600;margin:14px 0 8px;color:var(--text)}
.step p{font-size:14px;color:var(--text-2)}

/* ---------- Node list ---------- */
.node-list{border:1px solid var(--line);border-radius:var(--radius-panel);overflow:hidden;background:var(--bg-1)}
.node-row{
  display:grid;grid-template-columns:150px 1fr 180px;gap:20px;align-items:center;
  padding:20px 24px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.node-row:last-child{border-bottom:0}
.node-row:hover{background:rgba(122,92,255,.08)}
.node-time{font-size:13px;color:var(--text-3);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.node-title{font-size:16px;font-weight:600;color:var(--text)}
.node-title span{display:block;font-size:13.5px;font-weight:400;color:var(--text-2);margin-top:4px}
.node-tag{justify-self:end}
.badge{
  display:inline-flex;align-items:center;
  font-size:12.5px;font-weight:600;color:var(--accent);
  background:rgba(47,224,192,.12);border-radius:var(--radius-badge);padding:5px 10px;
}
.badge.neutral{color:var(--text-2);background:transparent;border:1px solid var(--line)}
.badge.warm{color:#FFB08F;background:rgba(255,122,69,.14)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-card);
  box-shadow:var(--shadow-light);overflow:hidden;
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  position:relative;min-height:56px;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:transparent;transition:background .2s var(--ease);
}
.faq-item.open .faq-q::before{background:linear-gradient(180deg,var(--cta),var(--cta-2))}
.faq-q .ico{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line-light);display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--ink-2);transition:transform .22s var(--ease),color .2s var(--ease);
}
.faq-item.open .faq-q .ico{transform:rotate(45deg);color:var(--primary-deep)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a p{padding:0 22px 20px 22px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- Entry cards ---------- */
.entries{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:24px}
.entry{
  display:flex;flex-direction:column;justify-content:space-between;gap:18px;
  border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;
  background:var(--bg-1);box-shadow:var(--shadow-dark);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.entry:hover{border-color:rgba(47,224,192,.42);transform:translateY(-2px)}
.entry.tall{padding:28px}
.entry h3{font-size:19px;font-weight:600;color:var(--text);margin-bottom:10px}
.entry p{font-size:14.5px;color:var(--text-2)}
.entry .go{font-size:14px;color:var(--accent);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.entry .pic{border-radius:12px;overflow:hidden;background:var(--bg-2);aspect-ratio:16/9;margin-bottom:18px}
.entry .pic img{width:100%;height:100%;object-fit:cover}

/* ---------- CTA band ---------- */
.cta-band{
  border:1px solid var(--line);border-radius:var(--radius-panel);
  background:linear-gradient(120deg,rgba(122,92,255,.22),rgba(47,224,192,.10)),var(--bg-2);
  padding:44px;display:grid;grid-template-columns:1.4fr .9fr;gap:32px;align-items:center;
  box-shadow:var(--shadow-dark);
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.3;margin-bottom:12px}
.cta-band p{font-size:15px;color:var(--text-2)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:360px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s var(--ease),box-shadow .2s var(--ease)}
.footer-col a:hover{color:var(--accent);box-shadow:inset 0 -2px 0 var(--accent)}
.contact-line{font-size:14px;color:var(--text-2)}
.contact-line b{color:var(--text);font-weight:600}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- Sticky CTA bar ---------- */
.cta-bar{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:flex;align-items:center;gap:14px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-panel);
  padding:12px 14px 12px 18px;box-shadow:var(--shadow-dark);
  transform:translateY(140%);opacity:0;visibility:hidden;
  transition:transform .26s var(--ease),opacity .26s var(--ease),visibility .26s;
}
.cta-bar.is-show{transform:translateY(0);opacity:1;visibility:visible}
.cta-bar .txt{font-size:14px;color:var(--text);font-weight:600}
.cta-bar .close{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--line);
  color:var(--text-2);font-size:14px;display:inline-flex;align-items:center;justify-content:center;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.cta-bar .close:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- States ---------- */
.skeleton{
  height:14px;border-radius:6px;background:linear-gradient(90deg,rgba(122,92,255,.16),rgba(122,92,255,.30),rgba(122,92,255,.16));
  background-size:200% 100%;animation:sk 1.4s linear infinite;
}
@keyframes sk{0%{background-position:200% 0}100%{background-position:-200% 0}}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-panel);padding:36px;
  text-align:center;color:var(--text-2);font-size:14px;background:var(--bg-1);
}
.empty-state .es-title{font-size:16px;font-weight:600;color:var(--text);margin-bottom:8px}
.notice-err{
  border:1px solid rgba(255,95,46,.5);background:rgba(255,95,46,.10);
  color:#FFC4AC;border-radius:10px;padding:12px 16px;font-size:14px;
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  :root{--section-gap:84px}
  .mega-panel{width:720px}
}
@media (max-width:1023px){
  :root{--section-gap:72px}
  .nav-main{display:none}
  .burger{display:inline-flex}
  .header-actions .btn{display:none}
  .mega-wrap{display:none}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .data-bar{grid-template-columns:repeat(2,1fr)}
  .data-cell:nth-child(2){border-right:0}
  .data-cell:nth-child(1),.data-cell:nth-child(2){border-bottom:1px solid var(--line)}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .m-card.wide{grid-column:span 2;grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .entries{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  :root{--section-gap:56px}
  .container{padding:0 16px}
  .page-hero{padding:56px 0 48px}
  .matrix{grid-template-columns:1fr}
  .m-card.wide{grid-column:span 1}
  .data-bar{grid-template-columns:1fr}
  .data-cell{border-right:0;border-bottom:1px solid var(--line)}
  .data-cell:last-child{border-bottom:0}
  .steps{grid-template-columns:1fr}
  .node-row{grid-template-columns:1fr;gap:10px;padding:18px}
  .node-tag{justify-self:start}
  .entries{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-bar{
    left:0;right:0;bottom:0;border-radius:0;border-left:0;border-right:0;
    padding:12px 16px calc(12px + env(safe-area-inset-bottom));
    transform:translateY(140%);
  }
  .cta-bar.is-show{transform:translateY(0)}
  .cta-bar .btn{flex:1 1 auto}
  body{padding-bottom:0}
}
@media (max-width:479px){
  h1{font-size:26px}
  .brand-main{font-size:18px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .data-cell{padding:20px}
}

/* roulang page: category2 */
:root{
  --bg-0:#0F0C1B;
  --bg-1:#171329;
  --bg-2:#1F1A35;
  --bg-light:#F6F4FF;
  --bg-light-2:#ECE8FC;
  --primary:#7A5CFF;
  --primary-deep:#5533E0;
  --accent:#2FE0C0;
  --cta:#FF7A45;
  --cta-2:#FF5F2E;
  --text:#F2EFFA;
  --text-2:#A9A2C7;
  --text-3:#6F6890;
  --text-dark:#1A1533;
  --text-dark-2:#4A4468;
  --line:rgba(122,92,255,.22);
  --line-strong:rgba(122,92,255,.42);
  --line-light:rgba(26,21,51,.10);
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:10px;
  --radius-badge:6px;
  --shadow-inset:inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-deep:0 18px 40px -22px rgba(0,0,0,.85);
  --shadow-light:0 10px 30px rgba(23,19,41,.08);
  --container:1200px;
  --gap:24px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
h1,h2,h3,h4{letter-spacing:-.01em;line-height:1.25}
p{line-height:1.75}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
::selection{background:rgba(47,224,192,.28);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-light{background:var(--bg-light);color:var(--text-dark)}
.section-light .lead,.section-light .muted{color:var(--text-dark-2)}
.section-panel{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(15,12,27,.96);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{
  background:var(--bg-0);
  border-bottom-color:var(--line);
  box-shadow:0 16px 34px -26px rgba(0,0,0,.95);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:74px;
}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  flex:0 0 auto;
  padding:6px 2px;
}
.brand-main{
  font-size:20px;
  font-weight:800;
  letter-spacing:.02em;
  color:var(--text);
}
.brand-sub{
  font-size:12px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--accent);
  padding:3px 7px;
  border:1px solid rgba(47,224,192,.4);
  border-radius:var(--radius-badge);
  background:rgba(47,224,192,.1);
}
.nav-main{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-main a{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-main a:hover{color:var(--text);background:var(--bg-2)}
.nav-main a.active{color:var(--accent)}
.nav-main a.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:6px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.header-right{display:flex;align-items:center;gap:12px;margin-left:auto}

/* Mega 面板 */
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--text-2);
  border:1px solid var(--line);
  border-radius:8px;
  transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.mega-trigger:hover{color:var(--text);border-color:var(--line-strong);background:var(--bg-2)}
.mega-trigger .chev{
  width:8px;height:8px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  transform:rotate(45deg) translateY(-2px);
  transition:transform .24s var(--ease);
}
.mega-wrap.is-open .mega-trigger{color:var(--text);background:var(--bg-2);border-color:var(--line-strong)}
.mega-wrap.is-open .mega-trigger .chev{transform:rotate(225deg) translateY(-2px)}
.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  right:0;
  width:840px;
  max-width:calc(100vw - 48px);
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  box-shadow:var(--shadow-deep),var(--shadow-inset);
  padding:24px;
  display:grid;
  grid-template-columns:1fr 1fr 1.1fr;
  gap:22px;
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s linear;
}
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{
  font-size:13px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--text-3);
  margin-bottom:12px;
}
.mega-links li + li{margin-top:4px}
.mega-links a{
  display:block;
  padding:8px 10px;
  font-size:14px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .18s var(--ease),transform .18s var(--ease),background .18s var(--ease);
}
.mega-links a:hover{color:var(--accent);transform:translateX(4px);background:var(--bg-2)}
.mega-news li + li{margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
.mega-news a{font-size:14px;color:var(--text-2);transition:color .18s var(--ease)}
.mega-news a:hover{color:var(--accent)}
.mega-news span{display:block;font-size:12px;color:var(--text-3);margin-top:4px}
.mega-cards{display:grid;gap:12px}
.mega-card{
  display:block;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  background:var(--bg-2);
  transition:border-color .18s var(--ease),transform .18s var(--ease);
}
.mega-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.mega-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-2)}
.mega-card span{display:block;padding:10px 12px;font-size:13px;color:var(--text-2)}

/* 移动端菜单按钮 */
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  border-radius:8px;
  color:var(--text-2);
}
.menu-toggle:hover{color:var(--text);border-color:var(--line-strong)}
.menu-toggle i{
  display:block;
  width:18px;height:2px;
  background:currentColor;
  position:relative;
  transition:background .18s var(--ease);
}
.menu-toggle i::before,
.menu-toggle i::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  background:currentColor;
  transition:transform .2s var(--ease);
}
.menu-toggle i::before{top:-6px}
.menu-toggle i::after{top:6px}
.mobile-drawer{
  display:none;
  position:fixed;
  inset:74px 0 0 0;
  z-index:110;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:20px 24px calc(96px + env(safe-area-inset-bottom));
  overflow-y:auto;
  transform:translateY(-8px);
  opacity:0;
  visibility:hidden;
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s linear;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-drawer a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 14px;
  font-size:16px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
  border-radius:8px;
}
.mobile-drawer a.active{color:var(--accent)}
.mobile-drawer .drawer-cta{
  margin-top:20px;
  justify-content:center;
  border:0;
  color:#fff;
  font-weight:600;
  background:linear-gradient(135deg,var(--cta),var(--cta-2));
}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:14px 26px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--radius-btn);
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-sm{min-height:40px;padding:10px 18px;font-size:14px}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,var(--cta),var(--cta-2));
  box-shadow:0 14px 28px -18px rgba(255,95,46,.9);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  color:var(--text);
  border:1px solid var(--line-strong);
  background:transparent;
}
.btn-ghost:hover{background:var(--bg-2);border-color:var(--accent);color:var(--accent)}
.btn-light{
  color:var(--text-dark);
  border:1px solid var(--line-light);
  background:#fff;
}
.btn-light:hover{border-color:var(--primary);color:var(--primary-deep)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  font-size:12px;
  line-height:1.6;
  border-radius:var(--radius-badge);
  border:1px solid var(--line);
  color:var(--text-2);
  white-space:nowrap;
}
.badge-accent{
  color:var(--accent);
  border-color:transparent;
  background:rgba(47,224,192,.12);
}
.badge-time{color:var(--text-3)}
.badge-light{
  color:var(--text-dark-2);
  border-color:var(--line-light);
  background:var(--bg-light-2);
}
.badge-row{display:flex;flex-wrap:wrap;gap:8px}

/* ============ 内页标题区 ============ */
.page-hero{
  position:relative;
  padding:64px 0 56px;
  background-image:linear-gradient(120deg,rgba(15,12,27,.96) 0%,rgba(23,19,41,.9) 46%,rgba(85,51,224,.55) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--text-2);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span.sep{color:var(--text-3)}
.page-hero h1{
  font-size:clamp(30px,4.6vw,52px);
  font-weight:800;
  max-width:16em;
}
.page-hero .lead{
  margin-top:18px;
  font-size:17px;
  color:var(--text-2);
  max-width:62ch;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700;
}
.section-head h2::before{
  content:"";
  display:inline-block;
  width:3px;
  height:.92em;
  margin-right:12px;
  vertical-align:-2px;
  border-radius:2px;
  background:var(--cta);
}
.section-head .lead{
  margin-top:12px;
  font-size:15px;
  color:var(--text-2);
  max-width:64ch;
}
.section-light .section-head h2::before{background:var(--primary-deep)}
.link-more{
  font-size:14px;
  color:var(--accent);
  border-bottom:1px solid transparent;
  transition:border-color .18s var(--ease),color .18s var(--ease);
  white-space:nowrap;
}
.link-more:hover{border-bottom-color:var(--accent)}

/* ============ 时间轴（本页主结构） ============ */
.timeline-wrap{position:relative}
.timeline{
  position:relative;
  padding-left:44px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:13px;
  top:10px;
  bottom:10px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--accent),rgba(122,92,255,.35) 55%,rgba(122,92,255,.06));
}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;
  left:-38px;
  top:22px;
  width:14px;height:14px;
  border-radius:50%;
  background:var(--bg-0);
  border:2px solid var(--accent);
  box-shadow:0 0 0 5px rgba(47,224,192,.1);
}
.tl-item.is-next::before{border-color:var(--cta);box-shadow:0 0 0 5px rgba(255,122,69,.12)}
.tl-card{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-deep),var(--shadow-inset);
  clip-path:polygon(14px 0,100% 0,100% 100%,0 100%,0 14px);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.tl-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.tl-top{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
}
.tl-date{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--accent);
}
.tl-card h3{font-size:20px;font-weight:600;margin-bottom:10px}
.tl-card p{font-size:15px;color:var(--text-2)}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tl-note{
  margin-top:16px;
  padding:12px 14px;
  font-size:13px;
  color:var(--text-2);
  background:var(--bg-2);
  border-left:3px solid var(--primary);
  border-radius:0 8px 8px 0;
}

/* ============ 数据条 ============ */
.stat-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  overflow:hidden;
}
.stat-item{
  background:var(--bg-1);
  padding:26px 22px;
}
.stat-item strong{
  display:block;
  font-size:30px;
  font-weight:800;
  color:var(--accent);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  letter-spacing:-.01em;
}
.stat-item span{display:block;margin-top:8px;font-size:14px;color:var(--text-2)}

/* ============ 卖点 / 场景（不对称网格） ============ */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--gap);
}
.feature-card{
  position:relative;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  box-shadow:var(--shadow-deep),var(--shadow-inset);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.feature-card:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.feature-wide{grid-column:span 2;display:grid;grid-template-columns:1.05fr .95fr;gap:22px;align-items:center}
.feature-wide img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:12px;
  background:var(--bg-2);
}
.feature-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:15px;
  color:var(--accent);
  letter-spacing:.08em;
}
.feature-card h3{font-size:21px;font-weight:600;margin:12px 0 10px}
.feature-card p{font-size:15px;color:var(--text-2)}

/* ============ 流程 ============ */
.step-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--gap);
}
.step-item{
  padding:22px;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  background:rgba(31,26,53,.5);
}
.step-item strong{
  display:block;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:22px;
  color:var(--accent);
  margin-bottom:12px;
}
.step-item h4{font-size:17px;font-weight:600;margin-bottom:8px}
.step-item p{font-size:14px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq-list{max-width:920px;margin:0 auto}
.faq-item{
  border-bottom:1px solid var(--line-light);
  background:transparent;
}
.faq-item:first-child{border-top:1px solid var(--line-light)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:16px 12px 16px 0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text-dark);
  border-left:3px solid transparent;
  padding-left:0;
  transition:border-color .2s var(--ease),color .2s var(--ease),padding-left .2s var(--ease);
}
.faq-q:hover{color:var(--primary-deep)}
.faq-item.is-open .faq-q{
  border-left-color:var(--cta);
  padding-left:14px;
  color:var(--primary-deep);
}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  border-radius:50%;
  border:1px solid var(--line-light);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  width:10px;height:1.5px;
  background:var(--text-dark-2);
  transform:translate(-50%,-50%);
}
.faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);transition:opacity .2s var(--ease)}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:var(--cta)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease),padding .28s var(--ease);
}
.faq-item.is-open .faq-a{max-height:320px;padding-bottom:18px}
.faq-a p{font-size:15px;color:var(--text-dark-2);padding-right:34px;padding-left:14px}

/* ============ CTA 带 ============ */
.cta-band{
  background:linear-gradient(120deg,rgba(31,26,53,.96),rgba(85,51,224,.5)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border:1px solid var(--line-strong);
  border-radius:var(--radius-panel);
  padding:48px 44px;
  display:grid;
  grid-template-columns:1.4fr auto;
  gap:32px;
  align-items:center;
  box-shadow:var(--shadow-deep),var(--shadow-inset);
}
.cta-band h2{font-size:clamp(23px,2.4vw,32px);font-weight:700}
.cta-band p{margin-top:14px;font-size:15px;color:var(--text-2);max-width:60ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 延伸入口（不等宽卡组） ============ */
.entry-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr 1fr;
  gap:var(--gap);
}
.entry-card{
  position:relative;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  min-height:210px;
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--bg-1);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.entry-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.entry-card img{
  position:absolute;
  inset:0;
  width:100%;height:100%;
  object-fit:cover;
  opacity:.34;
}
.entry-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(15,12,27,.2),rgba(15,12,27,.92));
}
.entry-card > *{position:relative;z-index:1}
.entry-card h3{font-size:19px;font-weight:600;margin-bottom:8px}
.entry-card p{font-size:14px;color:var(--text-2)}
.entry-card .entry-tag{
  margin-bottom:12px;
  align-self:flex-start;
}
.entry-card.entry-tall{min-height:260px}
.entry-card.entry-flat{min-height:190px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:72px 0 28px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:38ch}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col li + li{margin-top:10px}
.footer-col a{
  font-size:14px;
  color:var(--text-2);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer-col a:hover{color:var(--accent);border-bottom-color:var(--accent);border-bottom-width:2px}
.contact-line{font-size:14px;color:var(--text-2)}
.contact-line b{color:var(--text);font-weight:600}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
}

/* ============ 固定底部转化条 ============ */
.sticky-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:130;
  display:flex;
  align-items:center;
  gap:16px;
  padding:12px 14px 12px 20px;
  background:var(--bg-2);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-panel);
  box-shadow:var(--shadow-deep),var(--shadow-inset);
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s linear;
}
.sticky-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.sticky-cta .sticky-text{font-size:14px;color:var(--text-2)}
.sticky-cta .sticky-text b{color:var(--text);font-weight:600}
.sticky-close{
  width:32px;height:32px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  color:var(--text-3);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.sticky-close:hover{color:var(--text);background:var(--bg-1)}

/* ============ 状态样式 ============ */
.state-empty{
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  color:var(--text-2);
  font-size:15px;
  background:rgba(31,26,53,.4);
}
.skeleton{
  border-radius:8px;
  background:linear-gradient(90deg,var(--bg-2) 25%,rgba(122,92,255,.18) 45%,var(--bg-2) 65%);
  background-size:220% 100%;
  animation:skeleton 1.4s linear infinite;
}
.skeleton-line{height:12px;margin-bottom:10px}
.skeleton-line.short{width:52%}
@keyframes skeleton{from{background-position:120% 0}to{background-position:-120% 0}}
.state-error{
  border:1px solid rgba(255,122,69,.5);
  background:rgba(255,122,69,.08);
  color:#FFC8B2;
  border-radius:var(--radius-card);
  padding:18px 20px;
  font-size:14px;
}
.state-loading{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
}
.state-loading::before{
  content:"";
  width:14px;height:14px;
  border-radius:50%;
  border:2px solid var(--line-strong);
  border-top-color:var(--accent);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .mega-panel{width:720px;grid-template-columns:1fr 1fr 1fr}
  .entry-grid{grid-template-columns:1.2fr 1fr 1fr}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .nav-main{display:none}
  .menu-toggle{display:inline-flex}
  .header-right .btn-sm{display:none}
  .mobile-drawer{display:block}
  .feature-grid{grid-template-columns:1fr}
  .feature-wide{grid-column:span 1;grid-template-columns:1fr}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .entry-grid{grid-template-columns:1fr 1fr}
  .entry-card.entry-tall{min-height:220px}
  .cta-band{grid-template-columns:1fr;padding:38px 30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .page-hero{padding:44px 0 40px}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .timeline{padding-left:32px}
  .timeline::before{left:9px}
  .tl-item::before{left:-30px;top:20px;width:12px;height:12px}
  .tl-card{padding:20px}
  .step-grid{grid-template-columns:1fr}
  .stat-bar{grid-template-columns:1fr}
  .entry-grid{grid-template-columns:1fr}
  .entry-card,.entry-card.entry-tall,.entry-card.entry-flat{min-height:180px}
  .cta-band{padding:30px 22px}
  .cta-actions .btn{width:100%}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:56px 0 24px}
  .sticky-cta{
    left:0;right:0;bottom:0;
    border-radius:16px 16px 0 0;
    border-left:0;border-right:0;border-bottom:0;
    padding:14px 16px calc(14px + env(safe-area-inset-bottom));
    justify-content:space-between;
  }
  .sticky-cta .sticky-text{font-size:13px}
}
@media (max-width:479px){
  .brand-main{font-size:18px}
  .brand-sub{font-size:11px;letter-spacing:.08em}
  .page-hero h1{font-size:28px}
  .stat-item{padding:20px 18px}
  .stat-item strong{font-size:26px}
  .tl-card h3{font-size:18px}
  .faq-a p{padding-right:12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --bg-0:#0F0C1B;
  --bg-1:#171329;
  --bg-2:#1F1A35;
  --bg-light:#F6F4FF;
  --bg-light-2:#ECE8FC;
  --primary:#7A5CFF;
  --primary-deep:#5533E0;
  --accent:#2FE0C0;
  --cta:#FF7A45;
  --cta-2:#FF5F2E;
  --text:#F2EFFA;
  --text-2:#A9A2C7;
  --text-3:#6F6890;
  --ink:#1A1533;
  --ink-2:#4A4468;
  --line:rgba(122,92,255,.22);
  --line-light:rgba(26,21,51,.10);
  --r-card:16px;
  --r-panel:20px;
  --r-btn:10px;
  --r-badge:6px;
  --shadow-dark:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -22px rgba(0,0,0,.85);
  --shadow-light:0 10px 30px rgba(23,19,41,.08);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sec:96px;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  color:var(--text);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(15,12,27,.86);
  border-bottom:1px solid transparent;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{
  background:var(--bg-0);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:76px;
}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  flex-shrink:0;
}
.brand-main{
  font-size:20px;
  font-weight:800;
  color:var(--text);
  letter-spacing:.02em;
}
.brand-sub{
  font-size:12px;
  font-weight:600;
  color:var(--accent);
  padding:2px 7px;
  border:1px solid rgba(47,224,192,.42);
  border-radius:var(--r-badge);
  line-height:1.3;
}
.nav-main{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-main a{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--r-btn);
  white-space:nowrap;
}
.nav-main a:hover{color:var(--text);background:var(--bg-1);}
.nav-main a.active{
  color:var(--text);
  background:var(--bg-2);
  box-shadow:inset 0 0 0 1px var(--line);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:40px;
  padding:0 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--r-btn);
}
.mega-trigger:hover{color:var(--text);background:var(--bg-1);}
.mega-trigger[aria-expanded="true"]{background:var(--bg-2);color:var(--text);}
.caret{
  width:7px;height:7px;
  border-right:2px solid currentColor;
  border-bottom:2px solid currentColor;
  transform:rotate(45deg) translateY(-2px);
  transition:transform .22s var(--ease);
}
.mega-trigger[aria-expanded="true"] .caret{transform:rotate(-135deg) translateY(-2px);}
.mega-panel{
  position:absolute;
  top:calc(100% + 12px);
  right:0;
  width:820px;
  max-width:calc(100vw - 48px);
  display:grid;
  grid-template-columns:1fr 1fr 1.2fr;
  gap:24px;
  padding:24px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--shadow-dark);
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
}
.mega-panel.open{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h5{
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--text-3);
  margin:0 0 12px;
}
.mega-links li{margin-bottom:2px;}
.mega-links a{
  display:block;
  padding:7px 0;
  font-size:14px;
  color:var(--text-2);
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.mega-links a:hover{color:var(--accent);transform:translateX(4px);}
.mega-news li{
  padding:10px 0;
  border-bottom:1px dashed var(--line);
}
.mega-news li:last-child{border-bottom:0;}
.mega-news a{font-size:14px;color:var(--text-2);display:block;}
.mega-news a:hover{color:var(--accent);}
.mega-news time{display:block;font-size:12px;color:var(--text-3);margin-top:3px;}
.mega-cards{display:grid;gap:12px;}
.mega-card{
  display:grid;
  grid-template-columns:96px 1fr;
  gap:12px;
  align-items:center;
  padding:10px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:12px;
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.mega-card:hover{transform:translateY(-2px);border-color:rgba(47,224,192,.4);}
.mega-card img{width:96px;aspect-ratio:16/9;object-fit:cover;border-radius:8px;background:var(--bg-1);}
.mega-card b{display:block;font-size:14px;font-weight:600;color:var(--text);}
.mega-card span{display:block;font-size:12px;color:var(--text-3);margin-top:3px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  transition:transform .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,var(--cta),var(--cta-2));
  box-shadow:0 12px 26px -14px rgba(255,95,46,.9);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  color:var(--text);
  border-color:var(--line);
  background:rgba(122,92,255,.08);
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none;}
.hamburger{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.hamburger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.hamburger.is-open span:nth-child(2){opacity:0;}
.hamburger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{
  position:fixed;
  inset:76px 0 0;
  z-index:70;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:20px 24px calc(28px + env(safe-area-inset-bottom));
  overflow-y:auto;
  display:none;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 14px;
  font-size:16px;
  color:var(--text-2);
  border-radius:var(--r-btn);
  border:1px solid transparent;
}
.mobile-drawer a:hover,.mobile-drawer a.active{color:var(--text);background:var(--bg-1);border-color:var(--line);}
.mobile-drawer .btn{width:100%;margin-top:16px;}

/* ============ 通用区块 ============ */
.section{padding:var(--sec) 0;}
.section-tight{padding:72px 0;}
.section-light{background:var(--bg-light);color:var(--ink);}
.section-light p{color:var(--ink-2);}
.section-dark-2{background:var(--bg-1);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.25;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:3px;
  border-radius:2px;
  background:var(--cta);
}
.section-head p{
  margin-top:10px;
  font-size:15px;
  color:var(--text-2);
  max-width:620px;
}
.section-light .section-head p{color:var(--ink-2);}
.head-link{
  font-size:14px;
  color:var(--accent);
  border-bottom:1px solid rgba(47,224,192,.4);
  padding-bottom:2px;
  white-space:nowrap;
}
.head-link:hover{color:var(--text);border-bottom-color:var(--text);}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  font-size:12px;
  font-weight:600;
  line-height:1.6;
  border-radius:var(--r-badge);
}
.badge-accent{color:var(--accent);background:rgba(47,224,192,.12);}
.badge-line{color:var(--text-2);border:1px solid var(--line);}
.section-light .badge-line{color:var(--ink-2);border-color:var(--line-light);}

/* ============ 页面标题区 ============ */
.page-hero{
  position:relative;
  padding:64px 0 72px;
  background:
    linear-gradient(100deg,rgba(15,12,27,.96) 0%,rgba(15,12,27,.80) 48%,rgba(31,26,53,.72) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:var(--text-3);}
.page-hero h1{
  font-size:clamp(30px,4.6vw,52px);
  line-height:1.15;
  font-weight:800;
  max-width:820px;
}
.page-hero .lead{
  margin-top:18px;
  max-width:720px;
  font-size:17px;
  color:var(--text-2);
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.stat-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-top:40px;
  max-width:760px;
}
.stat-cell{
  padding:16px 18px;
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-dark);
}
.stat-cell b{
  display:block;
  font-size:24px;
  font-weight:800;
  color:var(--accent);
  letter-spacing:-0.01em;
}
.stat-cell span{
  display:block;
  font-size:13px;
  color:var(--text-3);
  margin-top:4px;
}

/* ============ 长卷图文 ============ */
.scroll-block{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:56px;
  align-items:center;
}
.scroll-block.reverse .scroll-media{order:2;}
.scroll-media{
  position:relative;
  border-radius:var(--r-panel);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-dark);
  background:var(--bg-2);
  aspect-ratio:4/3;
}
.scroll-media img{width:100%;height:100%;object-fit:cover;}
.scroll-media .media-tag{
  position:absolute;
  left:16px;bottom:16px;
  padding:5px 12px;
  font-size:12px;
  font-weight:600;
  color:var(--accent);
  background:rgba(15,12,27,.86);
  border:1px solid rgba(47,224,192,.36);
  border-radius:var(--r-badge);
}
.scroll-index{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--accent);
  margin-bottom:14px;
  display:block;
}
.scroll-body h2{
  font-size:clamp(22px,2.2vw,30px);
  line-height:1.3;
  margin-bottom:18px;
}
.scroll-body p{color:var(--text-2);margin-bottom:16px;}
.scroll-body p:last-of-type{margin-bottom:0;}
.mini-list{margin-top:22px;display:grid;gap:10px;}
.mini-list li{
  display:flex;
  gap:10px;
  font-size:15px;
  color:var(--text-2);
  padding-left:2px;
}
.mini-list li::before{
  content:"";
  flex:0 0 auto;
  width:8px;height:8px;
  margin-top:9px;
  border-radius:2px;
  background:var(--accent);
  opacity:.85;
}
.scroll-stack{display:grid;gap:96px;}

/* ============ 时段速查表 ============ */
.period-list{
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  overflow:hidden;
  background:var(--bg-1);
  box-shadow:var(--shadow-dark);
}
.period-row{
  display:grid;
  grid-template-columns:150px 1fr auto;
  gap:20px;
  align-items:center;
  padding:20px 24px;
  border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.period-row:last-child{border-bottom:0;}
.period-row:hover{background:var(--bg-2);}
.period-time{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:15px;
  font-weight:700;
  color:var(--accent);
  letter-spacing:.02em;
}
.period-main b{display:block;font-size:16px;font-weight:600;color:var(--text);}
.period-main span{display:block;font-size:13px;color:var(--text-3);margin-top:4px;}
.period-tags{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;}

/* ============ 核对要点 ============ */
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.check-item{
  display:grid;
  grid-template-columns:52px 1fr;
  gap:16px;
  padding:22px;
  background:var(--bg-light-2);
  border:1px solid var(--line-light);
  border-radius:var(--r-card);
}
.check-item b{display:block;font-size:16px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.check-item p{font-size:14px;color:var(--ink-2);}
.check-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:20px;
  font-weight:800;
  color:var(--primary-deep);
  line-height:1.4;
}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line-light);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-light);
  overflow:hidden;
}
.faq-item summary{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px 18px 26px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  cursor:pointer;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  border-radius:0 2px 2px 0;
  background:transparent;
  transition:background .2s var(--ease);
}
.faq-item[open] summary::before{background:var(--cta);}
.faq-item summary::after{
  content:"";
  flex:0 0 auto;
  width:9px;height:9px;
  border-right:2px solid var(--ink-2);
  border-bottom:2px solid var(--ink-2);
  transform:rotate(45deg) translateY(-2px);
  transition:transform .22s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(-135deg) translateY(-2px);}
.faq-answer{
  padding:0 22px 20px 26px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
}

/* ============ 延伸入口 ============ */
.entry-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr 1fr;
  gap:20px;
}
.entry-card{
  position:relative;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  min-height:250px;
  padding:24px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--bg-1);
  overflow:hidden;
  box-shadow:var(--shadow-dark);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.entry-card img{
  position:absolute;
  inset:0;
  width:100%;height:100%;
  object-fit:cover;
  opacity:.4;
  transition:opacity .24s var(--ease),transform .3s var(--ease);
}
.entry-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(15,12,27,.25) 0%,rgba(15,12,27,.92) 74%);
}
.entry-card > *{position:relative;z-index:2;}
.entry-card:hover{transform:translateY(-2px);border-color:rgba(47,224,192,.45);}
.entry-card:hover img{opacity:.52;transform:scale(1.03);}
.entry-card h3{font-size:19px;font-weight:600;margin:12px 0 8px;}
.entry-card p{font-size:14px;color:var(--text-2);}
.entry-card.big{min-height:250px;grid-row:span 1;}
.entry-card.big h3{font-size:23px;}
.entry-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:13px;
  font-weight:600;
  color:var(--accent);
}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  padding:64px 0;
  background:
    linear-gradient(120deg,rgba(15,12,27,.94) 0%,rgba(31,26,53,.86) 60%,rgba(85,51,224,.42) 100%),
    url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-band .cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;max-width:640px;}
.cta-band p{margin-top:12px;color:var(--text-2);font-size:15px;max-width:640px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:340px;}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  font-size:14px;
  color:var(--text-2);
  border-bottom:2px solid transparent;
  padding-bottom:1px;
}
.footer-col a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.contact-line{font-size:14px;color:var(--text-2);}
.contact-line b{color:var(--text);font-weight:600;}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ============ 固定底部转化条 ============ */
.sticky-cta{
  position:fixed;
  right:24px;
  bottom:calc(24px + env(safe-area-inset-bottom));
  z-index:90;
  display:none;
  align-items:center;
  gap:14px;
  padding:12px 14px 12px 20px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow-dark);
}
.sticky-cta.show{display:flex;}
.sticky-cta span{font-size:14px;color:var(--text-2);}
.sticky-close{
  width:30px;height:30px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  color:var(--text-3);
  font-size:16px;
  line-height:1;
}
.sticky-close:hover{color:var(--text);background:var(--bg-1);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sec:80px;}
  .mega-panel{width:700px;}
  .entry-grid{grid-template-columns:1.2fr 1fr 1fr;}
}
@media (max-width:1023px){
  :root{--sec:72px;}
  .nav-main{display:none;}
  .hamburger{display:inline-flex;}
  .mega-wrap{display:none;}
  .header-inner{min-height:68px;gap:16px;}
  .mobile-drawer{inset:68px 0 0;}
  .scroll-block{grid-template-columns:1fr;gap:32px;}
  .scroll-block.reverse .scroll-media{order:0;}
  .scroll-stack{gap:64px;}
  .stat-row{grid-template-columns:repeat(3,1fr);}
  .entry-grid{grid-template-columns:1fr 1fr;}
  .entry-card.big{grid-column:span 2;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .period-row{grid-template-columns:130px 1fr;gap:14px;}
  .period-tags{grid-column:1/-1;justify-content:flex-start;}
}
@media (max-width:767px){
  :root{--sec:56px;}
  .container{padding:0 16px;}
  .page-hero{padding:44px 0 52px;}
  .page-hero .lead{font-size:16px;}
  .stat-row{grid-template-columns:1fr;gap:12px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .check-grid{grid-template-columns:1fr;}
  .entry-grid{grid-template-columns:1fr;}
  .entry-card.big{grid-column:span 1;}
  .cta-band .cta-inner{flex-direction:column;align-items:flex-start;gap:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .sticky-cta{
    right:0;left:0;bottom:0;
    border-radius:0;
    border-left:0;border-right:0;border-bottom:0;
    padding:10px 14px calc(10px + env(safe-area-inset-bottom));
    justify-content:space-between;
  }
  .sticky-cta.show{display:flex;}
}
@media (max-width:519px){
  .page-hero h1{font-size:28px;}
  .period-row{padding:16px;}
  .period-time{font-size:14px;}
  .btn{width:100%;}
  .period-tags{width:100%;}
  .sticky-cta .btn{width:auto;}
  .header-actions .btn-sm{display:none;}
  .brand-main{font-size:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}