/* roulang page: index */
:root{
  --bg:#060A18;
  --panel:#0B1226;
  --raise:#111A33;
  --line:rgba(234,240,255,.10);
  --line-strong:rgba(234,240,255,.18);
  --cyan:#3DE8D2;
  --cyan-deep:#12B8A6;
  --indigo:#7C6CFF;
  --text:#EAF0FF;
  --body:#B7C2DC;
  --muted:#7E8AA8;
  --ink:#04121A;
  --danger:#FF7A6B;
  --r-card:20px;
  --r-img:16px;
  --r-btn:14px;
  --r-input:12px;
  --shadow:0 12px 32px rgba(3,7,20,.55);
  --shadow-hover:0 18px 44px rgba(3,7,20,.7);
  --glow:0 0 0 1px rgba(61,232,210,.45),0 10px 30px rgba(61,232,210,.22);
  --container:1240px;
  --sec-space:96px;
  --glass:rgba(18,26,48,.55);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  background-image:
    linear-gradient(rgba(234,240,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(234,240,255,.035) 1px,transparent 1px);
  background-size:32px 32px,32px 32px;
  background-position:0 0;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0 0 auto 0;
  height:380px;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1.4px 1.4px at 8% 18%,rgba(234,240,255,.34),transparent 60%),
    radial-gradient(1.2px 1.2px at 22% 42%,rgba(61,232,210,.28),transparent 60%),
    radial-gradient(1.6px 1.6px at 37% 12%,rgba(234,240,255,.24),transparent 60%),
    radial-gradient(1.1px 1.1px at 54% 33%,rgba(124,108,255,.30),transparent 60%),
    radial-gradient(1.5px 1.5px at 68% 8%,rgba(234,240,255,.22),transparent 60%),
    radial-gradient(1.2px 1.2px at 81% 46%,rgba(61,232,210,.24),transparent 60%),
    radial-gradient(1.4px 1.4px at 93% 22%,rgba(234,240,255,.20),transparent 60%),
    radial-gradient(1.1px 1.1px at 14% 68%,rgba(234,240,255,.16),transparent 60%);
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{cursor:pointer;border:0;background:none}
::selection{background:rgba(61,232,210,.28);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.section{padding:var(--sec-space) 0}
.section--tight{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;flex-wrap:wrap}
.sec-head__left{max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);font-family:"Space Grotesk",sans-serif;font-weight:500;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--cyan);opacity:.8}
h2.sec-title{font-size:clamp(28px,3.2vw,36px);line-height:1.25;color:var(--text);font-weight:800;letter-spacing:-.01em}
.sec-desc{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.8}
.text-link{color:var(--cyan);font-size:14px;text-decoration:underline;text-underline-offset:4px;transition:color .2s}
.text-link:hover{color:#7bf3e4}

/* ============ 倒计时条 ============ */
.countdown-bar{
  position:sticky;top:0;z-index:60;
  height:44px;
  background:linear-gradient(90deg,rgba(18,184,166,.16),rgba(6,10,24,.92) 42%,rgba(124,108,255,.14));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.countdown-bar__inner{
  height:44px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.cd-left{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--body);white-space:nowrap}
.cd-dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 3px rgba(61,232,210,.16);animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.cd-clock{display:flex;align-items:center;gap:6px;font-family:"Space Grotesk",sans-serif;font-variant-numeric:tabular-nums}
.cd-num{
  min-width:34px;text-align:center;font-size:18px;font-weight:700;color:var(--cyan);
  background:rgba(11,18,38,.7);border:1px solid var(--line);border-radius:8px;padding:1px 6px;line-height:1.35;
  text-shadow:0 0 18px rgba(61,232,210,.45);
}
.cd-sep{color:var(--muted);opacity:.6;animation:breathe 1s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:.25}50%{opacity:.8}}
.cd-right a{font-size:12px;color:var(--muted);transition:color .2s}
.cd-right a:hover{color:var(--text)}

/* ============ Header ============ */
.site-header{
  position:sticky;top:44px;z-index:50;
  height:72px;
  border-bottom:1px solid transparent;
  transition:height .25s ease,background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  height:60px;
  background:rgba(6,10,24,.82);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
}
.header-inner{height:100%;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(61,232,210,.22),rgba(124,108,255,.22));
  border:1px solid var(--line-strong);
}
.brand-mark svg{width:16px;height:16px;stroke:var(--cyan)}
.brand-text{display:flex;align-items:baseline;gap:7px;line-height:1}
.brand-text strong{font-size:17px;font-weight:800;color:var(--text);letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;min-width:0}
.nav-link{
  position:relative;padding:8px 12px;font-size:14px;color:var(--body);border-radius:10px;
  white-space:nowrap;transition:color .2s,background .2s;
}
.nav-link:hover{color:var(--text);background:rgba(234,240,255,.05)}
.nav-link.is-active{color:var(--text);font-weight:500}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;border-radius:2px;
  background:var(--cyan);box-shadow:0 0 12px rgba(61,232,210,.6);
}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.search{
  display:flex;align-items:center;gap:8px;
  width:210px;height:38px;padding:0 14px;
  background:rgba(11,18,38,.72);border:1px solid var(--line);border-radius:999px;
  transition:width .25s ease,border-color .2s ease,box-shadow .2s ease;
}
.search svg{width:15px;height:15px;stroke:var(--muted);flex-shrink:0}
.search input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:13px;color:var(--text)}
.search input::placeholder{color:var(--muted)}
.search:focus-within{width:248px;border-color:rgba(61,232,210,.55);box-shadow:0 0 0 3px rgba(61,232,210,.13)}
.search:focus-within svg{stroke:var(--cyan)}
.link-login{font-size:14px;color:var(--body);transition:color .2s}
.link-login:hover{color:var(--cyan)}
.drawer-btn{
  display:none;width:38px;height:38px;border-radius:11px;border:1px solid var(--line);
  place-items:center;
}
.drawer-btn svg{width:18px;height:18px;stroke:var(--text)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;line-height:1;
  transition:transform .18s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:13px;border-radius:11px}
.btn-primary{
  background:var(--cyan);color:var(--ink);font-weight:700;
  box-shadow:var(--glow);
}
.btn-primary:hover{background:#5cf0dd;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(61,232,210,.4),0 4px 14px rgba(61,232,210,.18)}
.btn-ghost{
  background:transparent;color:var(--text);
  border:1px solid rgba(61,232,210,.45);
}
.btn-ghost:hover{background:rgba(61,232,210,.08);border-color:rgba(61,232,210,.8)}
.btn-ghost:active{transform:translateY(1px)}
.btn-outline{background:transparent;color:var(--body);border:1px solid var(--line-strong)}
.btn-outline:hover{color:var(--text);border-color:rgba(234,240,255,.36)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--cyan);outline-offset:3px;
}
.btn[disabled]{opacity:.55;filter:saturate(.6);cursor:not-allowed;transform:none;box-shadow:none}

/* ============ Hero ============ */
.hero{padding:64px 0 88px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line-strong);background:rgba(17,26,51,.6);
  font-size:12px;color:var(--body);margin-bottom:22px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--cyan);display:block}
h1.hero-title{
  font-size:clamp(40px,5vw,56px);
  line-height:1.14;letter-spacing:-.01em;font-weight:800;color:var(--text);
}
h1.hero-title span{color:var(--cyan)}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--body);max-width:520px}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-trust{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:26px;font-size:13px;color:var(--muted);
}
.hero-trust span{display:inline-flex;align-items:center;gap:10px}
.hero-trust span+span::before{content:"·";color:var(--muted);margin-right:2px}
.hero-visual{position:relative}
.hero-figure{
  position:relative;border-radius:24px;overflow:hidden;
  border:1px solid rgba(234,240,255,.12);
  box-shadow:var(--shadow);
}
.hero-figure img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,24,0) 45%,rgba(6,10,24,.72) 100%);
}
.hero-float{
  position:absolute;left:-24px;top:32px;z-index:2;
  width:236px;padding:18px;
  background:var(--glass);border:1px solid var(--line);
  border-radius:18px;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
}
.hero-float__label{font-size:11px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;font-family:"Space Grotesk",sans-serif}
.hero-float__value{font-size:16px;font-weight:700;color:var(--text);margin-top:6px}
.hero-float__stats{display:flex;gap:14px;margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.hero-float__stats div{font-size:11px;color:var(--muted)}
.hero-float__stats strong{display:block;font-family:"Space Grotesk",sans-serif;font-size:18px;color:var(--cyan);font-weight:700;line-height:1.3}

/* ============ 卖点时间轴 ============ */
.timeline-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:start}
.timeline{position:relative;padding-left:8px}
.timeline::before{
  content:"";position:absolute;left:27px;top:12px;bottom:12px;width:1px;
  background:linear-gradient(180deg,rgba(61,232,210,.7),rgba(61,232,210,0));
}
.tl-item{
  position:relative;display:grid;grid-template-columns:40px 1fr;gap:20px;
  padding:22px 0;border-bottom:1px solid var(--line);
  transition:transform .2s ease;
}
.tl-item:last-child{border-bottom:0}
.tl-num{
  font-family:"Space Grotesk",sans-serif;font-size:26px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(61,232,210,.55);
  transition:color .25s ease,-webkit-text-stroke-color .25s ease;
  position:relative;z-index:1;padding-top:2px;
}
.tl-item h3{font-size:19px;font-weight:700;color:var(--text);line-height:1.4}
.tl-item p{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.75;max-width:420px}
.timeline-side{position:relative;padding-top:10px}
.timeline-side img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:24px;border:1px solid var(--line)}
.timeline-side__cap{
  position:absolute;left:20px;right:20px;bottom:20px;
  background:rgba(11,18,38,.82);border:1px solid var(--line);border-radius:16px;
  padding:16px 18px;font-size:13px;color:var(--body);
}
.timeline-side__cap strong{display:block;color:var(--text);font-size:14px;margin-bottom:4px}

/* ============ 图墙 ============ */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:196px;gap:20px}
.g-item{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--panel);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.g-item img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.g-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,24,.05) 35%,rgba(6,10,24,.86) 100%);
}
.g-item__label{
  position:absolute;left:16px;bottom:16px;right:16px;z-index:2;
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.g-pill{
  padding:4px 12px;border-radius:999px;font-size:12px;color:var(--text);
  background:rgba(18,26,48,.62);border:1px solid rgba(234,240,255,.16);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.g-pill--indigo{background:rgba(124,108,255,.22);border-color:rgba(124,108,255,.4);color:#D8D3FF}
.g-item__note{font-size:12px;color:var(--body);line-height:1.5}
.g-a{grid-column:span 2;grid-row:span 2}
.g-b{grid-column:span 2}
.g-c,.g-d{grid-column:span 1}
.g-e{grid-column:span 4}

/* ============ CTA / 表单 ============ */
.signup{position:relative}
.signup-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:stretch}
.signup-panel{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px;backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
  display:flex;flex-direction:column;justify-content:center;
}
.signup-panel h2{font-size:clamp(26px,3vw,32px);color:var(--text);font-weight:800;line-height:1.3}
.signup-panel p.lead{margin-top:14px;font-size:15px;color:var(--body);line-height:1.85}
.check-list{margin-top:26px;display:grid;gap:14px}
.check-list li{display:flex;gap:12px;font-size:14px;color:var(--body);line-height:1.7}
.check-list svg{width:18px;height:18px;flex-shrink:0;margin-top:3px;stroke:var(--cyan)}
.form-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--shadow);
}
.form-card h3{font-size:18px;color:var(--text);font-weight:700}
.form-card .form-hint{margin-top:6px;font-size:13px;color:var(--muted)}
.field{margin-top:18px}
.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:8px;letter-spacing:.02em}
.field input,.field select{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-input);
  background:#0B1226;border:1px solid rgba(234,240,255,.14);color:var(--text);
  font-size:14px;outline:none;transition:border-color .2s,box-shadow .2s;
}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237E8AA8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;background-size:16px;padding-right:40px}
.field input::placeholder{color:#5C6785}
.field input:focus,.field select:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(61,232,210,.14)}
.field.has-error input,.field.has-error select{border-color:var(--danger)}
.field .err{display:none;margin-top:6px;font-size:12px;color:var(--danger)}
.field.has-error .err{display:block}
.form-card .btn{width:100%;margin-top:24px}
.form-declare{margin-top:14px;font-size:11px;line-height:1.7;color:#6B7694}
.form-ok{
  display:none;align-items:center;gap:8px;margin-top:14px;
  font-size:13px;color:var(--cyan);
}
.form-ok.is-on{display:flex}
.form-ok svg{width:16px;height:16px;stroke:var(--cyan)}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-card{
  position:relative;display:flex;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.news-card__bar{
  width:4px;flex-shrink:0;background:var(--cyan);opacity:.85;
}
.news-card__body{padding:24px;flex:1;min-width:0}
.news-card__meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:500;
}
.badge--indigo{background:rgba(124,108,255,.18);color:#C7C0FF;border:1px solid rgba(124,108,255,.36)}
.badge--cyan{background:rgba(61,232,210,.14);color:var(--cyan);border:1px solid rgba(61,232,210,.34)}
.badge--gray{background:rgba(126,138,168,.14);color:var(--muted);border:1px solid rgba(126,138,168,.3)}
.news-card__title{margin-top:12px;font-size:17px;font-weight:700;line-height:1.5;color:var(--text)}
.news-card__title a{transition:color .2s}
.news-card__excerpt{
  margin-top:10px;font-size:13px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__more{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:13px;color:var(--cyan);opacity:.9;transition:gap .2s ease,opacity .2s;
}
.news-card__more::after{content:"→"}
.news-card__more:hover{gap:10px;opacity:1}
.news-card--lead{grid-column:1 / -1}
.news-card--lead .news-card__body{padding:32px}
.news-card--lead .news-card__title{font-size:22px;line-height:1.45}
.news-card--lead .news-card__excerpt{-webkit-line-clamp:3;font-size:14px;max-width:820px}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:64px 24px;border:1px dashed var(--line-strong);border-radius:var(--r-card);
  background:rgba(11,18,38,.5);text-align:center;
}
.empty-state svg{width:64px;height:64px;stroke:#3A4767}
.empty-state p{font-size:14px;color:var(--muted)}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:22px 4px;text-align:left;
  font-size:15.5px;font-weight:500;color:var(--text);
  transition:color .2s;
}
.faq-q:hover{color:var(--cyan)}
.faq-sign{
  position:relative;width:16px;height:16px;flex-shrink:0;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--cyan);border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.faq-sign::before{left:0;top:7px;width:16px;height:1.6px}
.faq-sign::after{left:7px;top:0;width:1.6px;height:16px}
.faq-item.is-open .faq-sign::after{transform:rotate(90deg);opacity:0}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .22s ease;
}
.faq-a p{padding:0 4px 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:96%}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  padding:64px 0 28px;
  background:linear-gradient(180deg,rgba(11,18,38,.35),rgba(6,10,24,0));
  position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{font-size:16px;color:var(--text);font-weight:800}
.footer-brand em{font-style:normal;font-size:11px;color:var(--muted);margin-left:6px}
.footer-about{font-size:13px;color:var(--muted);line-height:1.9;max-width:320px}
.footer-col h4{font-size:13px;color:var(--text);font-weight:700;margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:13px;color:var(--muted);transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line-strong);
  display:grid;place-items:center;transition:border-color .2s,background .2s;
}
.footer-social a:hover{border-color:rgba(61,232,210,.6);background:rgba(61,232,210,.08)}
.footer-social svg{width:16px;height:16px;stroke:var(--body)}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:#66708C;
}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(4,8,20,.72);
  backdrop-filter:blur(6px);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s;
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(340px,88vw);
  background:var(--panel);border-left:1px solid var(--line);
  padding:24px;display:flex;flex-direction:column;gap:22px;
  transform:translateX(100%);transition:transform .28s ease;
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center}
.drawer-close svg{width:16px;height:16px;stroke:var(--text)}
.drawer-nav{display:grid;gap:4px}
.drawer-nav a{padding:12px 10px;border-radius:12px;font-size:15px;color:var(--body);transition:background .2s,color .2s}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(61,232,210,.09);color:var(--text)}
.drawer-search{display:flex;align-items:center;gap:8px;height:42px;padding:0 14px;border-radius:999px;background:#0B1226;border:1px solid var(--line)}
.drawer-search svg{width:15px;height:15px;stroke:var(--muted)}
.drawer-search input{flex:1;background:none;border:0;outline:none;font-size:14px;color:var(--text)}
.drawer-actions{display:grid;gap:10px}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease-out,transform .3s ease-out}
.reveal.is-in{opacity:1;transform:none}

@media (hover:hover){
  .tl-item:hover .tl-num{color:var(--cyan);-webkit-text-stroke-color:transparent}
  .g-item:hover{transform:translateY(-4px);border-color:rgba(61,232,210,.55);box-shadow:0 0 0 1px rgba(61,232,210,.35),0 16px 40px rgba(3,7,20,.6)}
  .g-item:hover img{transform:scale(1.03)}
  .news-card:hover{border-color:rgba(61,232,210,.4);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
  .news-card:hover .news-card__title a{color:var(--cyan)}
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .nav-links{display:none}
  .drawer-btn{display:grid}
  .search{width:180px}
  .search:focus-within{width:200px}
}
@media (max-width:1023px){
  :root{--sec-space:72px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero{padding:44px 0 64px}
  .hero-visual{order:2}
  .hero-float{left:auto;right:16px;top:auto;bottom:16px;width:220px}
  .timeline-grid{grid-template-columns:1fr;gap:36px}
  .timeline-side{display:none}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:180px}
  .g-a{grid-column:span 2;grid-row:span 2}
  .g-b{grid-column:span 2}
  .g-c,.g-d{grid-column:span 1}
  .g-e{grid-column:span 2}
  .signup-grid{grid-template-columns:1fr;gap:24px}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .link-login{display:none}
  .search{display:none}
  .header-actions{gap:10px}
  .brand-text em{display:none}
  .news-card--lead .news-card__title{font-size:19px}
}
@media (max-width:639px){
  :root{--sec-space:64px}
  .container{padding:0 20px}
  .cd-num{font-size:18px;min-width:28px;padding:1px 4px}
  .cd-left span.cd-text{display:none}
  .cd-clock{gap:4px}
  h1.hero-title{font-size:34px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{flex:1;min-width:0;padding:0 16px}
  .hero-float{position:static;width:100%;margin-top:16px;left:auto;right:auto;bottom:auto;top:auto}
  .gallery{grid-template-columns:1fr;grid-auto-rows:auto}
  .g-a,.g-b,.g-c,.g-d,.g-e{grid-column:span 1;grid-row:auto}
  .g-item{aspect-ratio:3/2}
  .g-e{aspect-ratio:16/9}
  .signup-panel,.form-card{padding:24px}
  .sec-head{margin-bottom:32px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .faq-q{font-size:15px;gap:16px}
  .section--tight{padding:48px 0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --bg:#060A18;
  --panel:#0B1226;
  --panel-2:#111A33;
  --line:rgba(234,240,255,.10);
  --line-strong:rgba(234,240,255,.18);
  --cyan:#3DE8D2;
  --cyan-deep:#12B8A6;
  --indigo:#7C6CFF;
  --text:#EAF0FF;
  --body:#B7C2DC;
  --weak:#7E8AA8;
  --ink:#04121A;
  --glass:rgba(18,26,48,.55);
  --r-card:20px;
  --r-img:16px;
  --r-btn:14px;
  --r-input:12px;
  --shadow:0 12px 32px rgba(3,7,20,.55);
  --shadow-hover:0 18px 44px rgba(3,7,20,.7);
  --glow:0 0 0 1px rgba(61,232,210,.45),0 10px 30px rgba(61,232,210,.22);
  --max:1240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  position:relative;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--body);
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(234,240,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(234,240,255,.035) 1px,transparent 1px);
  background-size:32px 32px,32px 32px;
  background-position:-1px -1px,-1px -1px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:380px;
  pointer-events:none;
  z-index:0;
  opacity:.34;
  background-image:
    radial-gradient(1.6px 1.6px at 8% 24%,rgba(234,240,255,.9),transparent 62%),
    radial-gradient(1.4px 1.4px at 22% 68%,rgba(61,232,210,.85),transparent 62%),
    radial-gradient(1.2px 1.2px at 36% 16%,rgba(234,240,255,.7),transparent 62%),
    radial-gradient(1.5px 1.5px at 48% 54%,rgba(124,108,255,.8),transparent 62%),
    radial-gradient(1.2px 1.2px at 61% 28%,rgba(234,240,255,.7),transparent 62%),
    radial-gradient(1.6px 1.6px at 72% 74%,rgba(61,232,210,.75),transparent 62%),
    radial-gradient(1.2px 1.2px at 84% 36%,rgba(234,240,255,.65),transparent 62%),
    radial-gradient(1.5px 1.5px at 94% 62%,rgba(124,108,255,.7),transparent 62%);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
svg{display:block;}
::selection{background:rgba(61,232,210,.28);color:#fff;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ===== header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,10,24,.74);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background .22s ease,border-color .22s ease;
}
.site-header.is-scrolled{background:rgba(6,10,24,.92);border-color:var(--line-strong);}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:72px;
  transition:height .22s ease;
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  border:1px solid rgba(61,232,210,.4);
  background:linear-gradient(150deg,rgba(61,232,210,.16),rgba(124,108,255,.14));
  transition:border-color .2s ease,transform .2s ease;
}
.brand:hover .brand-mark{border-color:var(--cyan);transform:translateY(-1px);}
.brand-mark svg{width:18px;height:18px;fill:none;stroke:var(--cyan);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:16px;font-weight:800;color:var(--text);letter-spacing:-.01em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--weak);letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px;}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:14.5px;
  color:var(--body);
  border-radius:10px;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(234,240,255,.06);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;border-radius:2px;
  background:var(--cyan);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:38px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(11,18,38,.9);
  border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease,width .2s ease;
}
.search:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(61,232,210,.16);}
.search svg{width:15px;height:15px;stroke:var(--weak);fill:none;flex:0 0 auto;}
.search input{
  flex:1 1 auto;min-width:0;
  background:transparent;border:0;outline:none;
  color:var(--text);font-size:13px;
}
.search input::placeholder{color:var(--weak);}
.link-login{font-size:13.5px;color:var(--body);transition:color .2s ease;white-space:nowrap;}
.link-login:hover{color:var(--text);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:14.5px;font-weight:600;
  cursor:pointer;
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--cyan);color:var(--ink);box-shadow:var(--glow);}
.btn-primary:hover{background:#4ff0dc;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(61,232,210,.4),0 6px 16px rgba(61,232,210,.18);}
.btn-ghost{background:transparent;border-color:rgba(61,232,210,.45);color:var(--text);}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(61,232,210,.08);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;}
.btn[disabled],.btn.is-disabled{opacity:.55;filter:saturate(.6);cursor:not-allowed;transform:none;box-shadow:none;}
.drawer-btn{
  display:none;
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(11,18,38,.9);
  align-items:center;justify-content:center;
  cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.drawer-btn:hover{border-color:rgba(61,232,210,.5);}
.drawer-btn svg{width:19px;height:19px;stroke:var(--text);fill:none;}

/* ===== drawer ===== */
.drawer{position:fixed;inset:0;z-index:120;display:none;}
.drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(4,8,20,.72);backdrop-filter:blur(2px);}
.drawer-panel{
  position:absolute;top:0;right:0;
  width:min(340px,88vw);height:100%;
  background:var(--panel);
  border-left:1px solid var(--line);
  padding:20px;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);
  background:transparent;color:var(--text);
  font-size:20px;line-height:1;cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.drawer-close:hover{border-color:rgba(61,232,210,.5);background:rgba(61,232,210,.08);}
.search-drawer{width:100%;height:44px;}
.drawer-nav{display:flex;flex-direction:column;gap:2px;}
.drawer-nav a{
  padding:12px 12px;
  font-size:15px;
  color:var(--body);
  border-radius:12px;
  border:1px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.drawer-nav a:hover{color:var(--text);background:rgba(234,240,255,.05);border-color:var(--line);}
.drawer-nav a.is-active{color:var(--cyan);border-color:rgba(61,232,210,.35);background:rgba(61,232,210,.07);}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:auto;}
.drawer-actions .btn{width:100%;}

/* ===== article head ===== */
.article-head-area{padding:36px 0 0;position:relative;z-index:1;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--weak);
  margin-bottom:26px;
}
.breadcrumb a{color:var(--weak);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--text);}
.breadcrumb .crumb-sep{color:rgba(234,240,255,.28);font-size:11px;}
.breadcrumb .crumb-current{color:rgba(61,232,210,.8);}
.article-wrap{max-width:880px;margin:0 auto;}
.article-head{padding-bottom:28px;border-bottom:1px solid var(--line);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;
  border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(124,108,255,.16);
  border:1px solid rgba(124,108,255,.35);
  color:#BEB6FF;
}
.article-head h1{
  margin:16px 0 18px;
  font-size:clamp(30px,4vw,44px);
  line-height:1.26;
  font-weight:800;
  letter-spacing:-.01em;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:13.5px;color:var(--weak);}
.meta-row .sep{width:3px;height:3px;border-radius:50%;background:var(--weak);opacity:.6;}
.meta-row strong{color:var(--body);font-weight:500;}

/* ===== article body ===== */
.article-body{
  max-width:72ch;
  margin:0 auto;
  padding:40px 0 8px;
  font-size:17px;
  line-height:1.85;
  color:var(--body);
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  margin:1.9em 0 .7em;
  padding-left:14px;
  border-left:3px solid var(--cyan);
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.35;
  color:var(--text);
}
.article-body h3{
  margin:1.6em 0 .6em;
  padding-left:12px;
  border-left:3px solid rgba(61,232,210,.55);
  font-size:19px;
  font-weight:700;
  line-height:1.4;
  color:var(--text);
}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;color:var(--text);}
.article-body ul{list-style:none;margin:0 0 1.2em;padding-left:1.1em;}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:.55em;}
.article-body ul li::before{
  content:"";
  position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:2px;
  background:var(--cyan);
}
.article-body ol{list-style:decimal;margin:0 0 1.2em;padding-left:1.5em;}
.article-body ol li{margin-bottom:.55em;padding-left:.2em;}
.article-body ol li::marker{color:var(--cyan);font-family:"Space Grotesk",monospace;font-weight:700;}
.article-body a{
  color:var(--cyan);
  text-decoration:underline;
  text-underline-offset:3px;
  text-decoration-thickness:1px;
  text-decoration-color:rgba(61,232,210,.5);
  transition:color .2s ease,text-decoration-color .2s ease;
}
.article-body a:hover{color:#63f0de;text-decoration-color:var(--cyan);}
.article-body strong{color:var(--text);font-weight:700;}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  background:var(--glass);
  border-left:3px solid var(--cyan);
  border-radius:0 var(--r-img) var(--r-img) 0;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  color:var(--text);
  font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  max-width:100%;
  height:auto;
  margin:1.6em auto;
  border-radius:var(--r-img);
  border:1px solid var(--line);
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:10px;}
.article-body table{
  display:block;
  width:100%;
  max-width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  font-size:15px;
  margin:1.6em 0;
  border:1px solid var(--line);
  border-radius:var(--r-img);
}
.article-body th,.article-body td{
  padding:11px 14px;
  border-bottom:1px solid var(--line);
  text-align:left;
  white-space:nowrap;
}
.article-body th{background:rgba(17,26,51,.85);color:var(--text);font-weight:600;}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

/* ===== empty state ===== */
.empty-state{
  margin:40px 0 0;
  padding:56px 24px;
  text-align:center;
  border:1px dashed var(--line-strong);
  border-radius:var(--r-card);
  background:rgba(11,18,38,.45);
}
.empty-state svg{width:64px;height:64px;margin:0 auto 16px;stroke:var(--weak);fill:none;}
.empty-state p{font-size:15px;color:var(--body);margin-bottom:14px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--cyan);
  border-bottom:1px solid rgba(61,232,210,.35);
  padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}
.text-link:hover{color:#63f0de;border-color:var(--cyan);}

/* ===== sections ===== */
.section{padding:96px 0 0;position:relative;z-index:1;}
.section:last-of-type{padding-bottom:96px;}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head h2{font-size:clamp(24px,3vw,32px);}
.section-head p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--weak);}

.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.rec-card{
  display:flex;flex-direction:column;gap:10px;
  padding:24px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:rgba(11,18,38,.55);
  box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rec-card:hover{transform:translateY(-2px);border-color:rgba(61,232,210,.5);box-shadow:var(--shadow-hover);}
.rec-num{font-family:"Space Grotesk",monospace;font-size:13px;letter-spacing:.14em;color:rgba(61,232,210,.75);}
.rec-card h3{font-size:18px;line-height:1.4;}
.rec-card p{font-size:13.5px;line-height:1.8;color:var(--weak);}
.rec-card .rec-more{font-size:13px;color:var(--cyan);margin-top:auto;}
.related-foot{margin-top:28px;}

.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:36px;
  border-radius:24px;
  border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(17,26,51,.92),rgba(11,18,38,.72));
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:10px;}
.cta-band p{font-size:14.5px;line-height:1.8;color:var(--body);max-width:58ch;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 20px;list-style:none;margin-top:16px;padding:0;}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--body);}
.cta-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 0 3px rgba(61,232,210,.15);
}
.cta-actions{display:flex;flex-direction:column;gap:10px;flex:0 0 auto;}

/* ===== footer ===== */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:rgba(6,10,24,.92);
  padding-top:64px;
  position:relative;z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;flex-direction:column;line-height:1.2;margin-bottom:14px;}
.footer-brand strong{font-size:20px;font-weight:800;color:var(--text);}
.footer-brand em{font-style:normal;font-size:11px;letter-spacing:.16em;color:var(--weak);margin-top:5px;}
.footer-about{font-size:13.5px;line-height:1.8;color:var(--weak);max-width:320px;margin-bottom:20px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.footer-social a:hover{border-color:rgba(61,232,210,.5);background:rgba(61,232,210,.08);transform:translateY(-1px);}
.footer-social svg{width:16px;height:16px;stroke:var(--body);fill:none;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:13.5px;color:var(--weak);transition:color .2s ease;}
.footer-col a:hover{color:var(--text);}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  font-size:12.5px;
  color:var(--weak);
}

/* ===== motion ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease-out,transform .3s ease-out;}
.reveal.is-in{opacity:1;transform:none;}

/* ===== responsive ===== */
@media (max-width:1180px){
  .search{width:180px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .drawer-btn{display:inline-flex;}
  .rec-grid{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;gap:24px;}
  .cta-actions{flex-direction:row;flex-wrap:wrap;}
}
@media (max-width:767px){
  .section{padding-top:64px;}
  .site-footer{margin-top:64px;padding-top:48px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .article-body{font-size:16px;line-height:1.8;}
  .article-head-area{padding-top:26px;}
  .breadcrumb{margin-bottom:20px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .header-inner{height:64px;gap:12px;}
  .search:not(.search-drawer){display:none;}
  .link-login{display:none;}
  .rec-grid{grid-template-columns:1fr;}
  .cta-band{padding:24px;border-radius:20px;}
  .cta-actions{flex-direction:column;width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .article-body table{font-size:14px;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .article-head h1{font-size:28px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}
@media (hover:none){
  .rec-card:hover{transform:none;}
  .btn-primary:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --bg:#060A18;
  --panel:#0B1226;
  --elev:#111A33;
  --line:rgba(234,240,255,.10);
  --line-strong:rgba(234,240,255,.18);
  --cyan:#3DE8D2;
  --cyan-deep:#12B8A6;
  --indigo:#7C6CFF;
  --text:#EAF0FF;
  --body:#B7C2DC;
  --weak:#7E8AA8;
  --ink:#04121A;
  --r-card:20px;
  --r-img:16px;
  --r-btn:14px;
  --r-input:12px;
  --r-pill:999px;
  --shadow:0 12px 32px rgba(3,7,20,.55);
  --shadow-hover:0 18px 44px rgba(3,7,20,.7);
  --glow:0 0 0 1px rgba(61,232,210,.45),0 10px 30px rgba(61,232,210,.22);
  --container:1240px;
  --pad:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(234,240,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(234,240,255,.035) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.45) 45%,transparent 78%);
  mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.45) 45%,transparent 78%);
}
body::after{
  content:"";position:fixed;top:0;left:0;right:0;height:380px;z-index:0;pointer-events:none;
  background-image:
    radial-gradient(1.6px 1.6px at 8% 22%,rgba(255,255,255,.32),transparent 60%),
    radial-gradient(1.4px 1.4px at 22% 12%,rgba(255,255,255,.24),transparent 60%),
    radial-gradient(1.8px 1.8px at 38% 30%,rgba(61,232,210,.30),transparent 60%),
    radial-gradient(1.4px 1.4px at 52% 16%,rgba(255,255,255,.22),transparent 60%),
    radial-gradient(1.6px 1.6px at 66% 26%,rgba(255,255,255,.30),transparent 60%),
    radial-gradient(1.8px 1.8px at 78% 10%,rgba(124,108,255,.26),transparent 60%),
    radial-gradient(1.4px 1.4px at 88% 32%,rgba(255,255,255,.22),transparent 60%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
a:hover{color:#6df3e2;text-decoration-color:currentColor}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;letter-spacing:-.01em;line-height:1.28}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--pad)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  height:72px;display:flex;align-items:center;
  background:rgba(6,10,24,.72);
  border-bottom:1px solid transparent;
  transition:height .25s ease,background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  height:60px;
  background:rgba(6,10,24,.92);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:26px;height:100%}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);flex:none}
.brand:hover{color:var(--text);text-decoration:none}
.brand-mark{
  width:32px;height:32px;border-radius:11px;display:grid;place-items:center;
  background:rgba(61,232,210,.10);
  border:1px solid rgba(61,232,210,.30);
  color:var(--cyan);
  transition:background .2s,box-shadow .2s;
}
.brand:hover .brand-mark{background:rgba(61,232,210,.18);box-shadow:var(--glow)}
.brand-mark svg{width:17px;height:17px;stroke:currentColor;fill:none}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11px;color:var(--weak);letter-spacing:.09em}
.nav-links{display:flex;align-items:center;gap:2px;margin-right:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;font-size:14px;color:var(--body);
  text-decoration:none;border-radius:10px;
  transition:color .2s,background .2s;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(234,240,255,.05);text-decoration:none}
.nav-link.is-active{color:var(--text);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  border-radius:2px;background:var(--cyan);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.search{
  position:relative;display:flex;align-items:center;gap:8px;
  height:38px;width:212px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  background:rgba(11,18,38,.8);
  transition:width .25s ease,border-color .2s,box-shadow .2s;
}
.search svg{width:15px;height:15px;stroke:var(--weak);fill:none;flex:none}
.search input{
  width:100%;border:0;background:transparent;outline:none;
  color:var(--text);font-size:13px;font-family:inherit;
}
.search input::placeholder{color:var(--weak)}
.search:focus-within{width:240px;border-color:rgba(61,232,210,.6);box-shadow:0 0 0 3px rgba(61,232,210,.14)}
.link-login{font-size:14px;color:var(--body);text-decoration:none;transition:color .2s;white-space:nowrap}
.link-login:hover{color:var(--cyan);text-decoration:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
  font-family:inherit;white-space:nowrap;
}
.btn:hover{text-decoration:none}
.btn-sm{height:36px;padding:0 16px;font-size:13.5px;border-radius:12px}
.btn-primary{background:var(--cyan);color:var(--ink);box-shadow:var(--glow)}
.btn-primary:hover{background:#54f0dc;color:var(--ink);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(61,232,210,.45),0 4px 14px rgba(61,232,210,.18)}
.btn-ghost{background:transparent;color:var(--text);border-color:rgba(61,232,210,.45)}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(61,232,210,.08);color:var(--text);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn:disabled{filter:saturate(.6);cursor:not-allowed;transform:none;box-shadow:none}
.drawer-btn{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:rgba(11,18,38,.8);
  color:var(--text);cursor:pointer;place-items:center;
  transition:border-color .2s,color .2s;
}
.drawer-btn:hover{border-color:rgba(61,232,210,.5);color:var(--cyan)}
.drawer-btn svg{width:20px;height:20px;stroke:currentColor;fill:none}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:90;visibility:hidden;opacity:0;transition:opacity .25s ease}
.drawer.is-open{visibility:visible;opacity:1}
.drawer-mask{position:absolute;inset:0;background:rgba(4,7,16,.72)}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(330px,88vw);
  background:var(--panel);border-left:1px solid var(--line);
  padding:20px;display:flex;flex-direction:column;gap:18px;
  transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-panel .search,.drawer-panel .search:focus-within{width:100%;height:42px}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{
  padding:11px 12px;border-radius:12px;font-size:15px;
  color:var(--body);text-decoration:none;transition:background .2s,color .2s;
}
.drawer-nav a:hover{background:rgba(234,240,255,.06);color:var(--text)}
.drawer-nav a.is-active{color:var(--cyan);background:rgba(61,232,210,.10);font-weight:700}
.drawer-actions{display:grid;gap:10px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
.drawer-actions .btn{width:100%}

/* ---------- page head ---------- */
main{position:relative;z-index:1}
.page-head{padding:52px 0 46px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-head-inner{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:52px;align-items:center}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:18px}
.breadcrumb a{color:var(--weak);text-decoration:none;transition:color .2s}
.breadcrumb a:hover{color:var(--cyan);text-decoration:none}
.breadcrumb .sep{color:rgba(126,138,168,.55)}
.breadcrumb .current{color:rgba(61,232,210,.88)}
.page-head h1{font-size:clamp(28px,4vw,44px);margin-bottom:18px}
.lead{font-size:16.5px;line-height:1.8;color:var(--body);max-width:60ch;margin:0 0 24px}
.head-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:30px;padding:0 14px;border-radius:var(--r-pill);
  font-size:12.5px;color:var(--body);
  border:1px solid var(--line);background:rgba(17,26,51,.7);
  transition:border-color .2s,color .2s;
}
.tag:hover{border-color:rgba(61,232,210,.5);color:var(--cyan)}
.head-figure{
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
  aspect-ratio:3/4;background:var(--elev);
}
.head-figure img{width:100%;height:100%;object-fit:cover}

/* ---------- sections ---------- */
.section{padding:76px 0}
.section--flush{padding-top:0}
.section-head{max-width:780px;margin-bottom:40px}
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-family:"Space Grotesk",sans-serif;font-size:12px;font-weight:500;
  letter-spacing:.22em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:rgba(61,232,210,.7)}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.section-desc{font-size:15.5px;color:var(--weak);line-height:1.8;max-width:64ch;margin:0}

/* ---------- prep strip ---------- */
.prep-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:rgba(11,18,38,.6);overflow:hidden;margin-bottom:44px;
}
.prep-item{padding:22px 24px;border-right:1px solid var(--line)}
.prep-item:last-child{border-right:0}
.prep-item h3{font-size:15px;font-weight:700;margin-bottom:6px}
.prep-item p{font-size:13.5px;color:var(--weak);line-height:1.7;margin:0}

/* ---------- steps ---------- */
.steps{list-style:none;position:relative}
.step{
  display:grid;grid-template-columns:92px minmax(0,1fr);gap:26px;
  padding:28px 0;border-bottom:1px solid var(--line);
  transition:background .2s;
}
.step:first-child{border-top:1px solid var(--line)}
.step-no{
  font-family:"Space Grotesk",sans-serif;font-size:28px;font-weight:700;line-height:1;
  color:rgba(234,240,255,.20);
  transition:color .2s ease,text-shadow .2s ease;
  padding-top:4px;
}
.step:hover .step-no{color:var(--cyan);text-shadow:0 0 18px rgba(61,232,210,.35)}
.step-body{position:relative;padding-left:22px}
.step-body::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:1px;
  background:linear-gradient(180deg,rgba(61,232,210,.75),rgba(61,232,210,0));
  opacity:.5;transition:opacity .2s;
}
.step:hover .step-body::before{opacity:1}
.step-body h3{font-size:19px;margin-bottom:8px}
.step-body p{font-size:15.5px;line-height:1.8;color:var(--body);margin:0 0 12px;max-width:70ch}
.step-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  font-family:"Space Grotesk",sans-serif;font-size:12px;letter-spacing:.02em;
  color:var(--cyan);background:rgba(61,232,210,.10);
  border:1px solid rgba(61,232,210,.30);
}
.step-tip{font-size:13px;color:var(--weak)}

/* ---------- shot wall ---------- */
.shot-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:20px}
.shot{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:4/3;background:var(--elev);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.shot img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s ease;
}
.shot-tag{
  position:absolute;left:14px;right:14px;bottom:14px;
  padding:12px 14px;border-radius:14px;
  background:rgba(18,26,48,.62);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
}
.shot-tag strong{display:block;font-size:13.5px;color:var(--text);font-weight:700;margin-bottom:2px}
.shot-tag span{display:block;font-size:12px;color:var(--weak);line-height:1.6}

/* ---------- trouble ---------- */
.trouble{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:32px;align-items:start}
.trouble-list{list-style:none;display:grid;gap:14px}
.trouble-item{
  display:grid;grid-template-columns:34px minmax(0,1fr);gap:16px;
  padding:18px 20px;border-radius:var(--r-img);
  border:1px solid var(--line);background:rgba(11,18,38,.62);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.trouble-item:hover{border-color:rgba(61,232,210,.45);transform:translateX(3px);box-shadow:var(--shadow)}
.idx{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-family:"Space Grotesk",sans-serif;font-size:13px;font-weight:700;
  color:#BDB4FF;background:rgba(124,108,255,.14);
  border:1px solid rgba(124,108,255,.34);
}
.trouble-item h3{font-size:15.5px;margin-bottom:5px}
.trouble-item p{font-size:13.8px;color:var(--weak);line-height:1.72;margin:0}
.notice-card{
  padding:26px;border-radius:var(--r-card);
  background:rgba(18,26,48,.55);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.notice-card h3{font-size:17px;margin-bottom:14px}
.check-list{list-style:none;display:grid;gap:12px}
.check-list li{position:relative;padding-left:30px;font-size:14px;line-height:1.75;color:var(--body)}
.check-list li::before{
  content:"";position:absolute;left:0;top:6px;width:16px;height:16px;border-radius:5px;
  border:1px solid rgba(61,232,210,.6);
  background:
    linear-gradient(45deg,transparent 46%,var(--cyan) 46%,var(--cyan) 54%,transparent 54%) 2px 7px/8px 2px no-repeat,
    rgba(61,232,210,.12);
}
.notice-card .small-note{margin:18px 0 0;font-size:12.5px;color:var(--weak);line-height:1.7}

/* ---------- cta ---------- */
.cta-band{
  border-radius:24px;border:1px solid var(--line);
  padding:44px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  background:linear-gradient(135deg,rgba(17,26,51,.92),rgba(11,18,38,.62));
  box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-80px;width:280px;height:280px;
  border-radius:50%;border:1px solid rgba(61,232,210,.18);pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px}
.cta-band p{font-size:15px;color:var(--body);line-height:1.8;margin:0;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- faq ---------- */
.faq{max-width:820px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:500;color:var(--text);font-family:inherit;
  transition:color .2s;
}
.faq-q:hover{color:var(--cyan)}
.faq-icon{
  flex:none;width:22px;height:22px;display:grid;place-items:center;
  font-family:"Space Grotesk",sans-serif;font-size:18px;font-weight:500;
  color:var(--cyan);transition:transform .22s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a p{margin:0;padding:0 44px 24px 4px;font-size:15px;line-height:1.8;color:var(--weak)}

/* ---------- footer ---------- */
.site-footer{
  position:relative;z-index:1;
  border-top:1px solid var(--line);
  background:rgba(6,10,24,.72);
  padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:baseline;gap:8px;margin-bottom:14px}
.footer-brand strong{font-size:18px;color:var(--text);font-weight:800}
.footer-brand em{font-style:normal;font-size:12px;color:var(--weak);letter-spacing:.06em}
.footer-about{font-size:13.5px;color:var(--weak);line-height:1.8;max-width:36ch;margin:0 0 20px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:var(--r-pill);
  display:grid;place-items:center;color:var(--weak);
  border:1px solid var(--line);text-decoration:none;
  transition:color .2s,border-color .2s,background .2s,transform .2s;
}
.footer-social a:hover{color:var(--cyan);border-color:rgba(61,232,210,.5);background:rgba(61,232,210,.08);transform:translateY(-2px)}
.footer-social svg{width:16px;height:16px;stroke:currentColor;fill:none}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:13.5px;color:var(--weak);text-decoration:none;transition:color .2s}
.footer-col a:hover{color:#fff;text-decoration:none}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--weak);line-height:1.7;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease-out,transform .3s ease-out}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-links{gap:0}
  .nav-link{padding:8px 9px;font-size:13.5px}
  .search{width:180px}
  .search:focus-within{width:200px}
}
@media (max-width:1023px){
  .nav-links,.header-actions .search,.header-actions .link-login{display:none}
  .drawer-btn{display:grid}
  .header-inner{justify-content:space-between}
  .page-head-inner{grid-template-columns:minmax(0,1fr);gap:0}
  .head-figure{display:none}
  .shot-grid{grid-template-columns:1fr 1fr}
  .shot:first-child{grid-column:1 / -1;aspect-ratio:16/9}
  .trouble{grid-template-columns:minmax(0,1fr)}
  .prep-strip{grid-template-columns:1fr}
  .prep-item{border-right:0;border-bottom:1px solid var(--line)}
  .prep-item:last-child{border-bottom:0}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:60px 0}
}
@media (max-width:640px){
  :root{--pad:20px}
  body{font-size:15.5px}
  .site-header{height:64px}
  .brand-text strong{font-size:16px}
  .brand-text em{font-size:10.5px}
  .page-head{padding:36px 0 32px}
  .page-head h1{font-size:26px}
  .lead{font-size:15px}
  .section{padding:52px 0}
  .step{grid-template-columns:1fr;gap:10px;padding:22px 0}
  .step-no{font-size:22px;padding-top:0}
  .step-body{padding-left:16px}
  .shot-grid{grid-template-columns:1fr}
  .shot:first-child{aspect-ratio:16/10}
  .cta-band{padding:26px;border-radius:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;margin-top:34px}
  .faq-q{font-size:15px;padding:20px 2px}
  .faq-a p{padding-right:20px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --bg:#060A18;
  --panel:#0B1226;
  --panel-2:#111A33;
  --line:rgba(234,240,255,.10);
  --line-strong:rgba(234,240,255,.16);
  --primary:#3DE8D2;
  --primary-deep:#12B8A6;
  --accent:#7C6CFF;
  --text:#EAF0FF;
  --text-body:#B7C2DC;
  --text-muted:#7E8AA8;
  --ink:#04121A;
  --danger:#FF7A6B;
  --r-card:20px;
  --r-img:16px;
  --r-btn:14px;
  --r-input:12px;
  --shadow:0 12px 32px rgba(3,7,20,.55);
  --shadow-hover:0 18px 44px rgba(3,7,20,.7);
  --glow:0 0 0 1px rgba(61,232,210,.45),0 10px 30px rgba(61,232,210,.22);
  --font-num:"Space Grotesk","Noto Sans SC",system-ui,sans-serif;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text-body);
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(234,240,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(234,240,255,.035) 1px,transparent 1px);
  background-size:32px 32px;
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  top:0;left:0;right:0;
  height:380px;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(1.6px 1.6px at 8% 16%,rgba(234,240,255,.34),transparent 60%),
    radial-gradient(1.4px 1.4px at 22% 42%,rgba(61,232,210,.30),transparent 60%),
    radial-gradient(1.2px 1.2px at 37% 12%,rgba(234,240,255,.26),transparent 60%),
    radial-gradient(1.6px 1.6px at 52% 34%,rgba(124,108,255,.28),transparent 60%),
    radial-gradient(1.3px 1.3px at 66% 18%,rgba(234,240,255,.30),transparent 60%),
    radial-gradient(1.5px 1.5px at 79% 44%,rgba(61,232,210,.24),transparent 60%),
    radial-gradient(1.2px 1.2px at 91% 22%,rgba(234,240,255,.22),transparent 60%),
    radial-gradient(1.4px 1.4px at 15% 68%,rgba(234,240,255,.18),transparent 60%);
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select{font:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{position:relative;z-index:1;padding:96px 0}
.section--tight{padding:64px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:clamp(28px,3.2vw,36px);margin-bottom:14px}
.section-head p{font-size:16px;color:var(--text-muted);max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--primary);text-transform:uppercase}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--primary);opacity:.7}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--primary);color:var(--ink);box-shadow:var(--glow)}
.btn-primary:hover{background:#5cf0dd;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(61,232,210,.4),0 6px 16px rgba(61,232,210,.18)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid rgba(61,232,210,.45)}
.btn-ghost:hover{background:rgba(61,232,210,.08);border-color:var(--primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:12px}
.btn[disabled],.btn.is-disabled{filter:saturate(.4);cursor:not-allowed;transform:none}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,10,24,.82);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease;
}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;transition:height .2s ease}
.site-header.is-scrolled{background:rgba(6,10,24,.94)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;display:grid;place-items:center;border-radius:11px;
  background:rgba(61,232,210,.10);border:1px solid rgba(61,232,210,.35);color:var(--primary);
}
.brand-mark svg{width:16px;height:16px;stroke:currentColor;fill:none}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-text strong{font-size:17px;font-weight:800;color:var(--text);letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--text-muted)}
.nav-links{display:flex;align-items:center;gap:4px;margin-right:auto}
.nav-link{
  position:relative;padding:8px 12px;border-radius:10px;
  font-size:15px;color:var(--text-body);
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--text);background:rgba(234,240,255,.05)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.search{position:relative;display:flex;align-items:center}
.search svg{position:absolute;left:14px;width:16px;height:16px;stroke:var(--text-muted);fill:none;pointer-events:none}
.search input{
  width:220px;padding:9px 16px 9px 38px;border-radius:999px;
  background:var(--panel);border:1px solid var(--line);color:var(--text);font-size:13.5px;
  transition:border-color .18s ease,box-shadow .18s ease,width .2s ease;
}
.search input::placeholder{color:var(--text-muted)}
.search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(61,232,210,.16)}
.link-login{font-size:14.5px;color:var(--text-body);transition:color .18s ease}
.link-login:hover{color:var(--primary)}
.drawer-btn{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--text);
}
.drawer-btn svg{width:20px;height:20px;stroke:currentColor;fill:none}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:80;display:none;background:rgba(4,8,20,.72);backdrop-filter:blur(6px)}
.drawer.is-open{display:block}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(86vw,340px);height:100%;
  background:var(--panel);border-left:1px solid var(--line);
  padding:22px;display:flex;flex-direction:column;gap:22px;overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--text)}
.drawer-close svg{width:16px;height:16px;stroke:currentColor;fill:none}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:12px 14px;border-radius:12px;font-size:15px;color:var(--text-body);border:1px solid transparent}
.drawer-nav a:hover{background:rgba(234,240,255,.05);color:var(--text)}
.drawer-nav a.is-active{color:var(--text);font-weight:600;background:rgba(61,232,210,.08);border-color:rgba(61,232,210,.28)}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:auto}
.drawer-actions .btn{width:100%}

/* 页头 */
.page-head{position:relative;z-index:1;padding:52px 0 68px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:28px}
.breadcrumb a{transition:color .18s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{color:rgba(61,232,210,.88)}
.page-head-grid{display:grid;grid-template-columns:1fr 220px;gap:56px;align-items:center}
.page-head h1{font-size:clamp(32px,4.2vw,48px);margin:16px 0 18px;max-width:800px}
.lede{font-size:16.5px;line-height:1.85;color:var(--text-body);max-width:660px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  font-size:12.5px;padding:6px 14px;border-radius:999px;
  border:1px solid var(--line);color:var(--text-body);background:rgba(18,26,48,.55);
}
.page-head-figure{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow);
  aspect-ratio:4/5;
}
.page-head-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}

/* 对照清单 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow);position:relative;overflow:hidden;
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.compare-col::before{content:"";position:absolute;top:0;left:0;right:0;height:2px}
.compare-col.good::before{background:linear-gradient(90deg,var(--primary),rgba(61,232,210,0))}
.compare-col.bad::before{background:linear-gradient(90deg,var(--accent),rgba(124,108,255,0))}
.compare-col:hover{border-color:var(--line-strong);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.compare-col h3{font-size:20px;margin-bottom:6px}
.compare-sub{font-size:13.5px;color:var(--text-muted);margin-bottom:18px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:15px 0;border-bottom:1px dashed var(--line);
  font-size:15px;line-height:1.7;color:var(--text-body);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0}
.check-list li:first-child{padding-top:0}
.mark{
  flex:0 0 22px;width:22px;height:22px;margin-top:3px;border-radius:8px;
  display:grid;place-items:center;font-size:12px;font-weight:700;line-height:1;
}
.mark-good{background:rgba(61,232,210,.14);color:var(--primary);border:1px solid rgba(61,232,210,.32)}
.mark-bad{background:rgba(124,108,255,.14);color:#A79BFF;border:1px solid rgba(124,108,255,.32)}

/* 提示卡 */
.tips-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr;gap:24px}
.tip-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.tip-card:hover{border-color:rgba(61,232,210,.42);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.tip-num{font-family:var(--font-num);font-size:26px;font-weight:700;color:rgba(61,232,210,.55);letter-spacing:.04em}
.tip-card h3{font-size:19px;margin:14px 0 10px}
.tip-card p{font-size:14.5px;line-height:1.8;color:var(--text-muted)}
.tip-tag{
  display:inline-block;margin-top:18px;font-size:12px;padding:4px 12px;border-radius:999px;
  background:rgba(124,108,255,.13);border:1px solid rgba(124,108,255,.3);color:#A79BFF;
}

/* 风险信号 */
.signal-list{display:grid;gap:14px}
.signal{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:20px 24px;border-radius:16px;
  background:rgba(11,18,38,.72);border:1px solid var(--line);
  transition:border-color .2s ease,background-color .2s ease,transform .2s ease;
}
.signal:hover{border-color:var(--line-strong);background:rgba(17,26,51,.85);transform:translateX(3px)}
.signal-main{display:flex;align-items:center;gap:16px;min-width:0}
.signal-idx{font-family:var(--font-num);font-size:14px;color:var(--text-muted);flex-shrink:0}
.signal-title{font-size:15.5px;color:var(--text);font-weight:500}
.signal-desc{font-size:13px;color:var(--text-muted);margin-top:2px}
.badge{font-size:12px;font-weight:600;padding:5px 13px;border-radius:999px;white-space:nowrap;flex-shrink:0}
.badge-live{background:rgba(61,232,210,.13);color:var(--primary);border:1px solid rgba(61,232,210,.32)}
.badge-warn{background:rgba(255,122,107,.12);color:var(--danger);border:1px solid rgba(255,122,107,.3)}
.badge-soft{background:rgba(124,108,255,.14);color:#A79BFF;border:1px solid rgba(124,108,255,.3)}
.badge-mute{background:rgba(126,138,168,.14);color:var(--text-muted);border:1px solid rgba(126,138,168,.3)}

/* CTA */
.cta-band{
  position:relative;z-index:1;
  background:linear-gradient(120deg,rgba(18,26,48,.94),rgba(11,18,38,.9));
  border:1px solid var(--line);border-radius:24px;
  padding:44px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(24px,2.6vw,30px);margin-bottom:10px}
.cta-band p{font-size:15px;color:var(--text-muted);max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex:0 0 22px;width:22px;height:22px;display:grid;place-items:center;
  color:var(--primary);font-family:var(--font-num);font-size:20px;line-height:1;
  transition:transform .22s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--text-muted);max-width:720px}

/* 页脚 */
.site-footer{
  position:relative;z-index:1;margin-top:96px;padding:64px 0 32px;
  border-top:1px solid var(--line);background:rgba(6,10,24,.72);
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:44px}
.footer-brand{display:flex;flex-direction:column;line-height:1.15;margin-bottom:16px}
.footer-brand strong{font-size:18px;font-weight:800;color:var(--text)}
.footer-brand em{font-style:normal;font-size:11px;letter-spacing:.16em;color:var(--text-muted);margin-top:5px}
.footer-about{font-size:13.5px;line-height:1.85;color:var(--text-muted);max-width:360px}
.footer-social{display:flex;gap:10px;margin-top:22px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-body);
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.footer-social a svg{width:16px;height:16px;stroke:currentColor;fill:none}
.footer-social a:hover{border-color:rgba(61,232,210,.5);color:var(--primary);background:rgba(61,232,210,.08)}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:13.5px;color:var(--text-muted);transition:color .18s ease}
.footer-col a:hover{color:var(--text)}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-muted);
}

/* 响应式 */
@media (max-width:1100px){
  .nav-links{display:none}
  .drawer-btn{display:flex}
  .page-head-grid{grid-template-columns:1fr 180px;gap:36px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .tips-grid{grid-template-columns:1fr 1fr}
  .tips-grid .tip-card:first-child{grid-column:1/-1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:820px){
  .page-head-grid{grid-template-columns:1fr}
  .page-head-figure{display:none}
  .compare{grid-template-columns:1fr}
  .search{display:none}
  .header-inner{gap:16px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .site-header .header-inner{height:64px}
  .brand-text strong{font-size:15.5px}
  .brand-text em{font-size:10px}
  .header-actions{gap:10px}
  .link-login{display:none}
  .page-head{padding:36px 0 48px}
  .page-head h1{font-size:clamp(28px,7.6vw,36px)}
  .lede{font-size:15.5px}
  .tips-grid{grid-template-columns:1fr}
  .compare-col,.tip-card{padding:22px}
  .cta-band{padding:28px;gap:24px}
  .cta-actions .btn{width:100%}
  .signal{flex-direction:column;align-items:flex-start;gap:12px;padding:18px 20px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --bg:#060A18;
  --panel:#0B1226;
  --raise:#111A33;
  --line:rgba(234,240,255,.10);
  --line-strong:rgba(234,240,255,.16);
  --primary:#3DE8D2;
  --primary-dark:#12B8A6;
  --indigo:#7C6CFF;
  --text:#EAF0FF;
  --body:#B7C2DC;
  --muted:#7E8AA8;
  --ink:#04121A;
  --glass:rgba(18,26,48,.55);
  --r-card:20px;
  --r-img:16px;
  --r-btn:14px;
  --r-input:12px;
  --shadow:0 12px 32px rgba(3,7,20,.55);
  --shadow-hover:0 18px 44px rgba(3,7,20,.70);
  --glow:0 0 0 1px rgba(61,232,210,.45), 0 10px 30px rgba(61,232,210,.22);
  --container:1240px;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Space Grotesk","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--body);
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(234,240,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(234,240,255,.035) 1px, transparent 1px);
  background-size:32px 32px,32px 32px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0 0 auto 0;
  height:380px;
  pointer-events:none;
  z-index:0;
  background-image:
    radial-gradient(2px 2px at 12% 18%, rgba(234,240,255,.32), transparent 60%),
    radial-gradient(1.5px 1.5px at 28% 42%, rgba(61,232,210,.28), transparent 60%),
    radial-gradient(1.6px 1.6px at 46% 12%, rgba(234,240,255,.24), transparent 60%),
    radial-gradient(1.4px 1.4px at 63% 34%, rgba(124,108,255,.24), transparent 60%),
    radial-gradient(2px 2px at 78% 16%, rgba(234,240,255,.22), transparent 60%),
    radial-gradient(1.5px 1.5px at 88% 44%, rgba(61,232,210,.20), transparent 60%),
    radial-gradient(1.4px 1.4px at 36% 62%, rgba(234,240,255,.16), transparent 60%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{color:var(--text);font-weight:800;letter-spacing:-.01em;line-height:1.25}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:var(--ink);box-shadow:var(--glow)}
.btn-primary:hover{background:#55f0dc;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(61,232,210,.45),0 6px 16px rgba(61,232,210,.18)}
.btn-ghost{background:transparent;border-color:rgba(61,232,210,.45);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(61,232,210,.08);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:12px}
.btn[disabled],.btn.is-disabled{filter:saturate(.4);cursor:not-allowed;transform:none}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,10,24,.72);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background-color .2s ease,border-color .2s ease;
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .2s ease}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;
  border-radius:10px;border:1px solid rgba(61,232,210,.35);
  background:rgba(61,232,210,.08);
}
.brand-mark svg{width:18px;height:18px;stroke:var(--primary);fill:none}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:17px;font-weight:800;color:var(--text);letter-spacing:.02em}
.brand-text em{font-size:11px;font-style:normal;color:var(--muted);letter-spacing:.14em;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:8px;flex:1;min-width:0}
.nav-link{
  position:relative;padding:8px 12px;border-radius:10px;
  font-size:14.5px;font-weight:500;color:var(--body);
  transition:color .18s ease,background-color .18s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(234,240,255,.06)}
.nav-link.is-active{color:var(--text);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search{
  display:flex;align-items:center;gap:8px;
  width:216px;padding:8px 14px;
  background:var(--panel);border:1px solid var(--line);border-radius:999px;
  transition:border-color .18s ease,width .2s ease,box-shadow .18s ease;
}
.search svg{width:15px;height:15px;stroke:var(--muted);fill:none;flex-shrink:0}
.search input{
  width:100%;background:transparent;border:0;outline:none;
  font-size:13.5px;color:var(--text);
}
.search input::placeholder{color:var(--muted)}
.search:focus-within{border-color:rgba(61,232,210,.6);box-shadow:0 0 0 3px rgba(61,232,210,.14)}
.link-login{font-size:14px;font-weight:500;color:var(--body);padding:6px 4px;transition:color .18s ease}
.link-login:hover{color:var(--primary)}
.drawer-btn{
  display:none;width:38px;height:38px;border-radius:10px;
  border:1px solid var(--line);place-items:center;
}
.drawer-btn svg{width:18px;height:18px;stroke:var(--text);fill:none}

/* ---------- Drawer ---------- */
.site-drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(6,10,24,.96);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  padding:22px 20px 32px;
  display:flex;flex-direction:column;gap:18px;
  transform:translateX(100%);
  visibility:hidden;
  transition:transform .26s ease,visibility .26s ease;
  overflow-y:auto;
}
.site-drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:18px;color:var(--text);
}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  padding:13px 12px;border-radius:12px;font-size:16px;font-weight:600;color:var(--text);
  border:1px solid transparent;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(61,232,210,.10);border-color:rgba(61,232,210,.28)}
.drawer-search{
  display:flex;align-items:center;gap:8px;padding:10px 14px;
  background:var(--panel);border:1px solid var(--line);border-radius:999px;
}
.drawer-search svg{width:15px;height:15px;stroke:var(--muted);fill:none}
.drawer-search input{width:100%;background:transparent;border:0;outline:none;font-size:14px;color:var(--text)}
.drawer-actions{display:flex;gap:12px;flex-wrap:wrap}
body.no-scroll{overflow:hidden}

/* ---------- Breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb a{transition:color .18s ease}
.breadcrumb a:hover{color:var(--text)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:rgba(61,232,210,.85)}

/* ---------- Page head ---------- */
.page-head{padding:34px 0 30px}
.page-head-grid{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:40px;align-items:center}
.page-head h1{
  font-size:clamp(30px,3.6vw,42px);
  margin:16px 0 14px;
  letter-spacing:-.015em;
}
.page-head h1 .hl{color:var(--primary)}
.page-head .lede{font-size:16px;color:var(--body);max-width:60ch}
.page-head-media{
  width:220px;aspect-ratio:22/15;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.page-head-media img{width:100%;height:100%;object-fit:cover}
.head-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:500;color:var(--body);
  border:1px solid var(--line);background:rgba(18,26,48,.5);
}
.tag.is-accent{color:var(--primary);border-color:rgba(61,232,210,.34);background:rgba(61,232,210,.08)}
.tag.is-indigo{color:#B9B2FF;border-color:rgba(124,108,255,.34);background:rgba(124,108,255,.10)}

/* ---------- Sections ---------- */
.section{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(26px,3vw,34px)}
.section-head p{font-size:14.5px;color:var(--muted);max-width:52ch;margin-top:10px}
.eyebrow{
  display:inline-block;font-family:var(--font-num);font-size:12px;
  letter-spacing:.18em;color:var(--primary);text-transform:uppercase;margin-bottom:10px;
}

/* ---------- Device cards ---------- */
.device-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.device-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.device-card:hover{border-color:rgba(61,232,210,.35);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.device-card.lead{
  grid-column:1 / -1;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:28px;align-items:center;padding:28px;
}
.device-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.device-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  border:1px solid rgba(61,232,210,.28);background:rgba(61,232,210,.08);flex-shrink:0;
}
.device-icon svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.device-card h3{font-size:20px}
.device-badge{font-size:12px;color:var(--primary);border:1px solid rgba(61,232,210,.34);border-radius:999px;padding:3px 10px;margin-left:auto;white-space:nowrap}
.device-badge.neutral{color:var(--muted);border-color:var(--line)}
.device-card p{font-size:15px;color:var(--body)}
.device-list{margin-top:16px;display:flex;flex-direction:column;gap:0}
.device-list li{
  position:relative;padding:9px 0 9px 20px;font-size:14px;color:var(--body);
  border-top:1px solid var(--line);
}
.device-list li::before{
  content:"";position:absolute;left:2px;top:17px;width:7px;height:7px;
  border-radius:2px;background:var(--primary);opacity:.85;
}
.device-shot{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);aspect-ratio:4/3}
.device-shot img{width:100%;height:100%;object-fit:cover}

/* ---------- Wall ---------- */
.wall{display:grid;grid-template-columns:1.35fr 1fr;gap:16px}
.wall-item{
  position:relative;display:block;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);background:var(--raise);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.wall-item:first-child{grid-row:span 2;aspect-ratio:4/5}
.wall-item:not(:first-child){aspect-ratio:16/10}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.wall-item:hover{border-color:rgba(61,232,210,.55);transform:translateY(-2px);box-shadow:var(--glow)}
.wall-item:hover img{transform:scale(1.03)}
.wall-label{
  position:absolute;left:14px;bottom:14px;right:14px;
  display:flex;flex-direction:column;gap:3px;
  padding:10px 14px;border-radius:14px;
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.wall-label strong{font-size:14px;color:var(--text);font-weight:700}
.wall-label span{font-size:12px;color:var(--muted);line-height:1.6}

/* ---------- Install bar ---------- */
.install-bar{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;
  padding:26px 28px;border-radius:var(--r-card);
  border:1px solid rgba(61,232,210,.26);
  background:linear-gradient(120deg,rgba(61,232,210,.10),rgba(124,108,255,.08) 70%,transparent);
}
.install-bar h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:8px}
.install-bar p{font-size:14.5px;color:var(--body);max-width:60ch}
.steps{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.step-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;font-size:13px;color:var(--body);
  border:1px solid var(--line);background:rgba(11,18,38,.7);
}
.step-chip b{
  font-family:var(--font-num);font-size:12px;color:var(--primary);font-weight:700;
}

/* ---------- Points ---------- */
.points{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:start}
.points h2{font-size:clamp(26px,3vw,34px);margin-bottom:14px}
.points .points-note{font-size:15px;color:var(--body);max-width:44ch}
.points ol{display:flex;flex-direction:column}
.points li{
  display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;
  padding:18px 0;border-top:1px solid var(--line);
}
.points li:first-child{border-top:0;padding-top:0}
.points li b{font-family:var(--font-num);font-size:22px;color:rgba(234,240,255,.24);font-weight:700;transition:color .2s ease}
.points li:hover b{color:var(--primary)}
.points li strong{display:block;font-size:16px;color:var(--text);font-weight:700;margin-bottom:4px}
.points li span{font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- CTA ---------- */
.cta-panel{
  display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:36px;align-items:center;
  padding:34px;border-radius:var(--r-card);
  border:1px solid var(--line-strong);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--shadow);
}
.cta-panel h2{font-size:clamp(24px,2.8vw,32px);margin-bottom:12px}
.cta-panel p{font-size:15px;color:var(--body)}
.cta-checks{display:flex;flex-direction:column;gap:10px;margin-top:20px}
.cta-checks li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--body)}
.cta-checks svg{width:17px;height:17px;flex-shrink:0;margin-top:4px;stroke:var(--primary);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn{width:100%}
.cta-note{font-size:12px;color:var(--muted);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 2px;font-size:15.5px;font-weight:500;color:var(--text);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary .mark{
  position:relative;width:16px;height:16px;flex-shrink:0;
  transition:transform .22s ease;
}
.faq-item summary .mark::before,
.faq-item summary .mark::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:opacity .22s ease;
}
.faq-item summary .mark::before{left:0;top:7px;width:16px;height:2px}
.faq-item summary .mark::after{left:7px;top:0;width:2px;height:16px}
.faq-item[open] summary .mark{transform:rotate(90deg)}
.faq-item[open] summary .mark::after{opacity:0}
.faq-item .faq-body{padding:0 2px 22px;font-size:15px;color:var(--muted);line-height:1.8;max-width:68ch}

/* ---------- Footer ---------- */
.site-footer{margin-top:40px;border-top:1px solid var(--line);padding:56px 0 28px;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:baseline;gap:8px}
.footer-brand strong{font-size:18px;font-weight:800;color:var(--text)}
.footer-brand em{font-size:11px;font-style:normal;color:var(--muted);letter-spacing:.14em}
.footer-about{font-size:14px;color:var(--muted);margin-top:14px;max-width:36ch;line-height:1.8}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);transition:border-color .18s ease,background-color .18s ease,transform .18s ease;
}
.footer-social a:hover{border-color:rgba(61,232,210,.5);background:rgba(61,232,210,.08);transform:translateY(-1px)}
.footer-social svg{width:16px;height:16px;stroke:var(--body);fill:none}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--muted);transition:color .18s ease}
.footer-col a:hover{color:var(--text)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-in{opacity:1;transform:translateY(0);transition:opacity .3s ease-out,transform .3s ease-out}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .nav-links{display:none}
  .search{display:none}
  .drawer-btn{display:grid}
  .page-head-grid{grid-template-columns:1fr}
  .page-head-media{display:none}
  .device-card.lead{grid-template-columns:1fr;gap:20px}
  .points{grid-template-columns:1fr;gap:28px}
  .cta-panel{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:64px 0}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .device-grid{grid-template-columns:1fr}
  .wall{grid-template-columns:1fr}
  .wall-item:first-child{grid-row:auto;aspect-ratio:16/10}
  .wall-item:not(:first-child){aspect-ratio:16/10}
  .install-bar{grid-template-columns:1fr;padding:22px}
  .cta-panel{padding:24px}
  .page-head{padding:26px 0 22px}
  .page-head h1{margin:12px 0 10px}
}
@media (max-width:519px){
  .brand-text em{display:none}
  .link-login{display:none}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:52px 0}
  .btn{width:100%}
  .header-actions .btn-sm{width:auto}
  .points li{grid-template-columns:34px minmax(0,1fr);gap:12px}
}
@media (hover:hover){
  .device-card:hover .device-icon{border-color:rgba(61,232,210,.55)}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
:root{
  --bg:#060A18;
  --panel:#0B1226;
  --raise:#111A33;
  --line:rgba(234,240,255,.10);
  --line-strong:rgba(234,240,255,.18);
  --mint:#3DE8D2;
  --mint-deep:#12B8A6;
  --indigo:#7C6CFF;
  --text:#EAF0FF;
  --body-c:#B7C2DC;
  --muted:#7E8AA8;
  --danger:#FF7A6B;
  --r-card:20px;
  --r-img:16px;
  --r-btn:14px;
  --r-input:12px;
  --shadow:0 12px 32px rgba(3,7,20,.55);
  --shadow-hover:0 18px 44px rgba(3,7,20,.7);
  --glow:0 0 0 1px rgba(61,232,210,.45), 0 10px 30px rgba(61,232,210,.22);
  --sect:96px;
  --font-cn:"Noto Sans SC",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Space Grotesk","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--body-c);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(234,240,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(234,240,255,.035) 1px,transparent 1px);
  background-size:32px 32px;
}
body::after{
  content:"";
  position:fixed;
  top:0;left:0;right:0;
  height:380px;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(1.4px 1.4px at 12% 22%,rgba(234,240,255,.35),transparent 60%),
    radial-gradient(1.2px 1.2px at 78% 14%,rgba(61,232,210,.30),transparent 60%),
    radial-gradient(1.6px 1.6px at 43% 8%,rgba(234,240,255,.28),transparent 60%),
    radial-gradient(1.1px 1.1px at 66% 38%,rgba(124,108,255,.28),transparent 60%),
    radial-gradient(1.3px 1.3px at 26% 52%,rgba(234,240,255,.22),transparent 60%),
    radial-gradient(1.1px 1.1px at 89% 56%,rgba(61,232,210,.22),transparent 60%),
    radial-gradient(1.2px 1.2px at 55% 70%,rgba(234,240,255,.18),transparent 60%);
}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-.01em;font-weight:800;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .18s ease}
img{max-width:100%;display:block;border-radius:var(--r-img)}
button{font-family:inherit}
::selection{background:rgba(61,232,210,.28);color:#fff}

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

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,10,24,.74);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(3,7,20,.6);background:rgba(6,10,24,.9)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height .22s ease}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(61,232,210,.22),rgba(124,108,255,.18));
  border:1px solid rgba(61,232,210,.35);
}
.brand-mark svg{width:17px;height:17px;stroke:var(--mint);fill:none}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:800;color:var(--text);letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;min-width:0}
.nav-link{
  position:relative;
  padding:8px 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--body-c);
  white-space:nowrap;
}
@media (hover:hover){
  .nav-link:hover{color:var(--text);background:rgba(234,240,255,.06)}
}
.nav-link.is-active{color:var(--text);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  border-radius:2px;background:var(--mint);box-shadow:0 0 10px rgba(61,232,210,.6);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search{
  display:flex;align-items:center;gap:8px;
  width:226px;height:38px;padding:0 14px;
  border-radius:999px;border:1px solid var(--line);
  background:var(--panel);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search svg{width:15px;height:15px;stroke:var(--muted);fill:none;flex-shrink:0}
.search input{
  width:100%;border:0;background:transparent;outline:none;
  color:var(--text);font-size:13px;font-family:inherit;
}
.search input::placeholder{color:var(--muted)}
.search:focus-within{border-color:rgba(61,232,210,.55);box-shadow:0 0 0 3px rgba(61,232,210,.12)}
.link-login{font-size:14px;color:var(--body-c);padding:6px 4px}
@media (hover:hover){.link-login:hover{color:var(--mint)}}
.drawer-btn{
  display:none;
  width:38px;height:38px;border-radius:11px;
  border:1px solid var(--line);background:var(--panel);
  cursor:pointer;place-items:center;
}
.drawer-btn svg{width:18px;height:18px;stroke:var(--text);fill:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:14px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease,border-color .16s ease,color .16s ease;
  white-space:nowrap;
}
.btn-sm{padding:9px 16px;font-size:13px;border-radius:11px}
.btn-primary{background:var(--mint);color:#04121A;box-shadow:var(--glow)}
@media (hover:hover){.btn-primary:hover{background:#57f0dc;transform:translateY(-1px)}}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(61,232,210,.4)}
.btn-ghost{background:transparent;color:var(--text);border-color:rgba(61,232,210,.45)}
@media (hover:hover){.btn-ghost:hover{border-color:var(--mint);background:rgba(61,232,210,.08)}}
.btn-ghost:active{transform:translateY(1px)}
.btn:focus-visible,.pill:focus-visible,.faq-q:focus-visible,.tl-link:focus-visible,
.nav-link:focus-visible,.brand:focus-visible,.drawer-btn:focus-visible,.link-login:focus-visible{
  outline:2px solid var(--mint);outline-offset:3px;
}
.btn[disabled]{opacity:.6;saturate(.6);cursor:not-allowed}

/* ============ 抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(3,7,20,.66);
  opacity:0;visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;
  width:min(86vw,340px);
  background:var(--panel);
  border-left:1px solid var(--line);
  padding:22px 22px 32px;
  display:flex;flex-direction:column;gap:16px;
  transform:translateX(100%);
  transition:transform .26s ease;
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-head span{font-size:13px;color:var(--muted);letter-spacing:.12em}
.drawer-close{
  width:34px;height:34px;border-radius:10px;
  border:1px solid var(--line);background:var(--raise);
  display:grid;place-items:center;cursor:pointer;
}
.drawer-close svg{width:15px;height:15px;stroke:var(--text);fill:none}
.drawer-search{width:100%}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-top:4px}
.drawer-link{padding:12px 12px;border-radius:12px;font-size:15px;color:var(--body-c)}
.drawer-link.is-active{background:rgba(61,232,210,.1);color:var(--text);font-weight:700}
.drawer-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px}

/* ============ 页头区 ============ */
.page-head{padding:56px 0 20px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:26px}
.crumb a{color:var(--muted)}
@media (hover:hover){.crumb a:hover{color:var(--text)}}
.crumb .sep{color:rgba(234,240,255,.3)}
.crumb .cur{color:rgba(61,232,210,.85)}
.page-head-grid{display:grid;grid-template-columns:1fr 220px;gap:40px;align-items:start}
.page-head h1{font-size:clamp(30px,4.4vw,46px);letter-spacing:-.015em;max-width:18em}
.page-head .lede{margin-top:18px;font-size:16px;color:var(--body-c);max-width:44em}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;padding:6px 12px;border-radius:999px;
  border:1px solid var(--line);color:var(--body-c);background:rgba(17,26,51,.6);
}
.tag i{width:5px;height:5px;border-radius:50%;background:var(--mint);display:block}
.head-visual{position:relative;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow)}
.head-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ============ 快讯条 ============ */
.newsbar{
  margin-top:26px;
  display:flex;align-items:center;gap:14px;
  padding:14px 18px;border-radius:14px;
  border:1px solid var(--line);
  background:rgba(18,26,48,.55);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  font-size:14px;
  flex-wrap:wrap;
}
.newsbar .dot-live{
  width:8px;height:8px;border-radius:50%;background:var(--mint);
  box-shadow:0 0 0 4px rgba(61,232,210,.16);flex-shrink:0;
  animation:pulse 2s infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}
.newsbar .nb-label{font-size:12px;letter-spacing:.1em;color:var(--mint);font-weight:700;flex-shrink:0}
.newsbar .nb-text{color:var(--text);flex:1;min-width:200px}
.newsbar a.nb-link{color:var(--mint);font-size:13px;border-bottom:1px solid rgba(61,232,210,.4)}
@media (hover:hover){.newsbar a.nb-link:hover{color:#fff;border-color:#fff}}

/* ============ 通用板块 ============ */
.section{padding:var(--sect) 0 0}
.section-head{margin-bottom:34px;max-width:52em}
.section-head h2{font-size:clamp(24px,3.2vw,34px)}
.section-head p{margin-top:12px;color:var(--muted);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.2em;
  color:var(--mint);margin-bottom:14px;text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--mint);display:block}

/* ============ 本期重点 ============ */
.focus-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center}
.focus-visual{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow)}
.focus-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease}
@media (hover:hover){.focus-visual:hover img{transform:scale(1.03)}}
.focus-visual .glass-tag{
  position:absolute;left:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  background:rgba(18,26,48,.7);
  border:1px solid rgba(234,240,255,.16);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  font-size:12px;color:var(--text);
}
.focus-visual .glass-tag b{color:var(--mint);font-family:var(--font-num)}
.point-list{display:flex;flex-direction:column}
.point{
  display:grid;grid-template-columns:56px 1fr;gap:18px;
  padding:22px 0;border-top:1px solid var(--line);
}
.point:last-child{border-bottom:1px solid var(--line)}
.point .num{
  font-family:var(--font-num);font-size:26px;font-weight:700;
  color:rgba(234,240,255,.22);line-height:1;transition:color .2s ease;
}
.point:hover .num{color:var(--mint)}
.point h3{font-size:18px;margin-bottom:6px}
.point p{font-size:14px;color:var(--muted);line-height:1.75}

/* ============ 筛选 ============ */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.pill{
  padding:8px 18px;border-radius:999px;
  border:1px solid var(--line);background:transparent;
  color:var(--body-c);font-size:13px;cursor:pointer;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
@media (hover:hover){.pill:hover{color:var(--text);border-color:var(--line-strong)}}
.pill.is-active{background:rgba(61,232,210,.14);border-color:rgba(61,232,210,.5);color:var(--text);font-weight:700}

/* ============ 时间线 ============ */
.timeline{position:relative;display:flex;flex-direction:column;gap:22px}
.tl-item{display:grid;grid-template-columns:92px 26px 1fr;gap:16px}
.tl-date{text-align:right;padding-top:16px;line-height:1.3}
.tl-date .d{display:block;font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--text);letter-spacing:.02em}
.tl-date .w{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.tl-axis{position:relative;display:flex;justify-content:center}
.tl-axis::before{
  content:"";position:absolute;top:0;bottom:-22px;width:1px;
  background:linear-gradient(180deg,rgba(61,232,210,.5),rgba(234,240,255,.1));
}
.tl-item:last-child .tl-axis::before{display:none}
.tl-dot{
  width:11px;height:11px;border-radius:50%;margin-top:20px;
  background:var(--raise);border:1px solid var(--line-strong);position:relative;z-index:1;
}
.tl-item[data-status="live"] .tl-dot{background:var(--mint);border-color:var(--mint);box-shadow:0 0 0 4px rgba(61,232,210,.14)}
.tl-card{
  background:rgba(11,18,38,.86);
  border:1px solid var(--line);
  border-left:3px solid rgba(234,240,255,.12);
  border-radius:18px;
  padding:22px 24px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.tl-item[data-status="live"] .tl-card{border-left-color:var(--mint)}
@media (hover:hover){
  .tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(61,232,210,.3);background:rgba(17,26,51,.9)}
}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:12px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;line-height:1.5;
}
.badge-live{color:#04121A;background:var(--mint)}
.badge-done{color:var(--body-c);background:rgba(234,240,255,.1);border:1px solid var(--line)}
.badge-top{color:#EDEBFF;background:rgba(124,108,255,.28);border:1px solid rgba(124,108,255,.5)}
.tl-cat{font-size:12px;color:var(--muted);letter-spacing:.06em}
.tl-card h3{font-size:18px;line-height:1.45;margin-bottom:8px}
.tl-card p{font-size:14px;color:var(--muted);line-height:1.8}
.tl-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;font-size:13px;font-weight:700;color:var(--mint);
  border-bottom:1px solid rgba(61,232,210,.4);padding-bottom:2px;
}
@media (hover:hover){.tl-link:hover{color:#fff;border-color:#fff}}
.tl-empty{
  display:none;flex-direction:column;align-items:center;gap:12px;
  padding:64px 24px;border:1px dashed var(--line-strong);border-radius:var(--r-card);
  color:var(--muted);font-size:14px;text-align:center;
}
.tl-empty svg{width:56px;height:56px;stroke:var(--raise);fill:none}
.tl-empty.is-show{display:flex}

/* ============ 阶段进度 ============ */
.stage-list{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stage{
  padding:22px;border-radius:18px;
  border:1px solid var(--line);
  background:rgba(11,18,38,.8);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
@media (hover:hover){.stage:hover{border-color:rgba(61,232,210,.32);transform:translateY(-2px);box-shadow:var(--shadow)}}
.stage-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.stage-no{font-family:var(--font-num);font-size:22px;font-weight:700;color:rgba(234,240,255,.24)}
.stage h3{font-size:15px;margin-bottom:6px}
.stage .stage-desc{font-size:12px;color:var(--muted);min-height:38px;line-height:1.7}
.stage-bar{height:6px;border-radius:999px;background:var(--raise);overflow:hidden;margin-top:14px}
.stage-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--mint-deep),var(--mint))}
.stage-foot{display:flex;justify-content:space-between;align-items:center;margin-top:10px;font-size:12px;color:var(--muted)}
.stage-foot b{font-family:var(--font-num);color:var(--text)}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;background:none;border:0;cursor:pointer;
  color:var(--text);font-size:16px;font-weight:500;text-align:left;line-height:1.6;
}
@media (hover:hover){.faq-q:hover{color:var(--mint)}}
.faq-icon{
  width:22px;height:22px;flex-shrink:0;position:relative;
  border-radius:50%;border:1px solid var(--line-strong);
  transition:border-color .2s ease,transform .22s ease,background .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--body-c);
  left:50%;top:50%;transform:translate(-50%,-50%);
  transition:opacity .2s ease,background .2s ease;
}
.faq-icon::before{width:9px;height:1.5px}
.faq-icon::after{width:1.5px;height:9px}
.faq-item.is-open .faq-icon{border-color:rgba(61,232,210,.6);background:rgba(61,232,210,.12);transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-item.is-open .faq-icon::before{background:var(--mint)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-item.is-open .faq-a{max-height:240px}
.faq-a p{padding:0 4px 22px;font-size:15px;line-height:1.8;color:var(--muted);max-width:60em}

/* ============ 底部 CTA ============ */
.cta-band{
  margin-top:var(--sect);
  display:grid;grid-template-columns:1.5fr auto;gap:30px;align-items:center;
  padding:44px;
  border-radius:26px;
  border:1px solid rgba(61,232,210,.22);
  background:linear-gradient(120deg,rgba(61,232,210,.09),rgba(124,108,255,.07) 60%,rgba(11,18,38,.9));
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:12px}
.cta-band p{font-size:15px;color:var(--body-c);max-width:38em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{margin-top:var(--sect);border-top:1px solid var(--line);padding:64px 0 32px;background:rgba(6,10,24,.6)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:baseline;gap:8px;margin-bottom:14px}
.footer-brand strong{font-size:17px;font-weight:800;color:var(--text)}
.footer-brand em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.14em}
.footer-about{font-size:13px;color:var(--muted);line-height:1.85;max-width:30em}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  transition:border-color .18s ease,background .18s ease,transform .18s ease;
}
.footer-social svg{width:15px;height:15px;stroke:var(--body-c);fill:none}
@media (hover:hover){.footer-social a:hover{border-color:rgba(61,232,210,.5);background:rgba(61,232,210,.1);transform:translateY(-2px)}}
.footer-col h4{font-size:13px;color:var(--text);letter-spacing:.06em;margin-bottom:16px;font-weight:700}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:13px;color:var(--muted)}
@media (hover:hover){.footer-col a:hover{color:var(--text)}}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12px;color:var(--muted);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease-out,transform .3s ease-out}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  :root{--sect:72px}
  .nav-links{display:none}
  .drawer-btn{display:grid}
  .page-head-grid{grid-template-columns:1fr 180px;gap:28px}
  .focus-grid{grid-template-columns:1fr;gap:28px}
  .stage-list{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-band{grid-template-columns:1fr;padding:34px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .search{display:none}
  .link-login{display:none}
  .header-inner{gap:12px}
  .page-head{padding:38px 0 12px}
  .page-head-grid{grid-template-columns:1fr}
  .head-visual{display:none}
  .timeline{gap:18px}
  .tl-item{grid-template-columns:1fr;gap:10px}
  .tl-axis{display:none}
  .tl-date{display:flex;align-items:baseline;gap:8px;text-align:left;padding-top:0}
  .tl-date .d{font-size:17px}
  .tl-date .w{margin-top:0}
  .tl-card{padding:18px 18px}
  .cta-band{padding:26px;border-radius:20px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:519px){
  :root{--sect:64px}
  .brand-text em{display:none}
  .stage-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .point{grid-template-columns:42px 1fr;gap:14px}
  .point .num{font-size:22px}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category5 */
:root{
  --bg:#060A18;
  --panel:#0B1226;
  --raise:#111A33;
  --line:rgba(234,240,255,.10);
  --line-strong:rgba(234,240,255,.16);
  --cyan:#3DE8D2;
  --cyan-deep:#12B8A6;
  --indigo:#7C6CFF;
  --text:#EAF0FF;
  --body:#B7C2DC;
  --muted:#7E8AA8;
  --ink:#04121A;
  --r-card:20px;
  --r-img:16px;
  --r-btn:14px;
  --r-input:12px;
  --shadow:0 12px 32px rgba(3,7,20,.55);
  --shadow-hover:0 18px 44px rgba(3,7,20,.70);
  --glow:0 0 0 1px rgba(61,232,210,.45),0 10px 30px rgba(61,232,210,.22);
  --gap:96px;
  --pad:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  position:relative;
  font-family:'Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--body);
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(234,240,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(234,240,255,.035) 1px,transparent 1px);
  background-size:32px 32px,32px 32px;
  background-position:0 0,0 0;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:380px;
  pointer-events:none;
  z-index:0;
  opacity:.35;
  background-image:
    radial-gradient(1.2px 1.2px at 12% 18%,rgba(234,240,255,.85),transparent 60%),
    radial-gradient(1px 1px at 26% 42%,rgba(234,240,255,.7),transparent 60%),
    radial-gradient(1.4px 1.4px at 38% 12%,rgba(61,232,210,.8),transparent 60%),
    radial-gradient(1px 1px at 52% 34%,rgba(234,240,255,.6),transparent 60%),
    radial-gradient(1.2px 1.2px at 66% 8%,rgba(234,240,255,.8),transparent 60%),
    radial-gradient(1px 1px at 74% 46%,rgba(124,108,255,.85),transparent 60%),
    radial-gradient(1.3px 1.3px at 86% 22%,rgba(234,240,255,.7),transparent 60%),
    radial-gradient(1px 1px at 94% 52%,rgba(61,232,210,.7),transparent 60%),
    radial-gradient(1.1px 1.1px at 8% 62%,rgba(234,240,255,.55),transparent 60%),
    radial-gradient(1px 1px at 46% 70%,rgba(234,240,255,.5),transparent 60%);
  background-repeat:no-repeat;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;letter-spacing:-.01em;line-height:1.28}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 var(--pad);position:relative;z-index:1}
.section{padding:var(--gap) 0}
.section-tight{padding:56px 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-title{font-size:clamp(24px,3.2vw,32px)}
.section-sub{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.8}
.is-hidden{display:none !important}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-primary{background:var(--cyan);color:var(--ink);box-shadow:var(--glow)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(61,232,210,.4),0 4px 14px rgba(61,232,210,.18)}
.btn-secondary{background:transparent;border-color:rgba(61,232,210,.45);color:var(--text)}
.btn-secondary:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:rgba(17,26,51,.5)}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.btn[disabled]{filter:saturate(.4);opacity:.6;cursor:not-allowed}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,10,24,.88);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:22px;height:72px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-mark{
  width:36px;height:36px;border-radius:12px;flex:none;
  display:grid;place-items:center;
  color:var(--cyan);
  border:1px solid rgba(61,232,210,.4);
  background:rgba(61,232,210,.08);
}
.brand-mark svg{width:18px;height:18px;stroke:currentColor}
.brand-text strong{display:block;font-size:16px;font-weight:800;color:var(--text);letter-spacing:.02em;line-height:1.2}
.brand-text em{display:block;font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.16em;line-height:1.4}
.nav-links{display:flex;align-items:center;gap:2px;flex:1;justify-content:center}
.nav-link{
  position:relative;padding:9px 12px;border-radius:10px;
  font-size:14px;color:var(--body);white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-link.is-active{color:var(--text);font-weight:700}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--cyan);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:none;margin-left:auto}
.search{
  display:flex;align-items:center;gap:8px;width:220px;
  padding:8px 14px;border-radius:999px;
  border:1px solid var(--line);background:rgba(11,18,38,.85);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search svg{width:15px;height:15px;stroke:var(--muted);flex:none}
.search input{width:100%;border:0;background:transparent;outline:none;color:var(--text);font-size:13px}
.search input::placeholder{color:var(--muted)}
.search:focus-within{border-color:rgba(61,232,210,.6);box-shadow:0 0 0 3px rgba(61,232,210,.12)}
.link-login{font-size:14px;color:var(--body);padding:6px 4px;transition:color .18s ease}
.drawer-btn{display:none;width:38px;height:38px;border-radius:11px;border:1px solid var(--line);place-items:center;color:var(--text);background:rgba(11,18,38,.8)}
.drawer-btn svg{width:18px;height:18px;stroke:currentColor}

/* ============ 抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(4,8,18,.72);
  display:flex;justify-content:flex-end;
  opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  width:min(340px,86vw);height:100%;
  background:var(--panel);border-left:1px solid var(--line);
  padding:22px;display:flex;flex-direction:column;gap:20px;
  transform:translateX(16px);transition:transform .22s ease;
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--text)}
.drawer-close svg{width:16px;height:16px;stroke:currentColor}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:12px 12px;border-radius:12px;font-size:15px;color:var(--body);border:1px solid transparent}
.drawer-nav a.is-active{color:var(--cyan);border-color:rgba(61,232,210,.35);background:rgba(61,232,210,.07);font-weight:600}
.drawer-search{display:flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;border:1px solid var(--line);background:var(--bg)}
.drawer-search svg{width:15px;height:15px;stroke:var(--muted);flex:none}
.drawer-search input{width:100%;border:0;background:transparent;outline:none;color:var(--text);font-size:14px}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:auto}

/* ============ 页头区 ============ */
.page-head{padding:44px 0 8px;position:relative}
.page-head-inner{
  display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:48px;align-items:center;
  padding-bottom:36px;border-bottom:1px solid var(--line);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumbs a{color:var(--muted);transition:color .18s ease}
.crumbs span{color:rgba(126,138,168,.6)}
.crumbs em{font-style:normal;color:rgba(61,232,210,.9)}
.page-head h1{font-size:clamp(30px,4.2vw,48px);line-height:1.2}
.lede{margin-top:16px;font-size:16px;color:var(--body);max-width:56ch;line-height:1.8}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;
  border:1px solid var(--line);background:rgba(17,26,51,.6);color:var(--body);
  white-space:nowrap;
}
.badge-cyan{color:var(--cyan);border-color:rgba(61,232,210,.4);background:rgba(61,232,210,.08)}
.badge-indigo{color:#B4AAFF;border-color:rgba(124,108,255,.42);background:rgba(124,108,255,.12)}
.badge-gray{color:var(--muted);background:rgba(17,26,51,.5)}
.page-head-aside{display:flex;flex-direction:column;gap:14px}
.page-head-aside img{
  width:220px;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
}
.mini-card{
  width:220px;padding:14px 16px;border-radius:14px;
  border:1px solid var(--line);background:rgba(18,26,48,.55);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.mini-card dl{margin:0;display:flex;justify-content:space-between;gap:12px}
.mini-card dt{font-size:12px;color:var(--muted);margin:0}
.mini-card dd{margin:0;font-family:'Space Grotesk',sans-serif;font-size:18px;font-weight:700;color:var(--cyan);font-variant-numeric:tabular-nums}

/* ============ 搜索面板 ============ */
.glass{
  background:rgba(18,26,48,.55);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
}
.search-panel{padding:32px}
.rule-search{
  display:flex;align-items:center;gap:12px;margin-top:24px;padding:0 16px;
  background:var(--panel);border:1px solid rgba(234,240,255,.14);
  border-radius:var(--r-input);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.rule-search svg{width:18px;height:18px;stroke:var(--muted);flex:none}
.rule-search input{flex:1;height:54px;border:0;background:transparent;outline:none;color:var(--text);font-size:15px}
.rule-search input::placeholder{color:var(--muted)}
.rule-search:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(61,232,210,.16)}
.tag-wall{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.tag{
  padding:7px 15px;border-radius:999px;font-size:13px;
  border:1px solid var(--line);background:rgba(11,18,38,.75);color:var(--body);
  transition:color .18s ease,border-color .18s ease,background .18s ease,transform .18s ease;
}
.tag:active{transform:translateY(1px)}
.tag:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.search-hint{margin-top:16px;font-size:13px;color:var(--muted)}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:44px 20px;text-align:center;
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  background:rgba(11,18,38,.5);margin-top:24px;
}
.empty-state svg{width:56px;height:56px;stroke:var(--muted);fill:none;stroke-width:1.4}
.empty-state p{font-size:14px;color:var(--muted)}
.empty-state a{font-size:14px;color:var(--cyan);text-decoration:underline;text-underline-offset:3px}

/* ============ 双列手风琴 ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.faq-col-head{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.faq-col-head .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);flex:none}
.faq-col-head h3{font-size:18px}
.faq-col-head .count{font-family:'Space Grotesk',sans-serif;font-size:13px;color:var(--muted)}
.faq-list{border-top:1px solid var(--line);margin-top:16px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 0;text-align:left;font-size:15.5px;font-weight:600;color:var(--text);
  transition:color .18s ease;
}
.faq-sign{position:relative;width:14px;height:14px;flex:none}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--cyan);border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.faq-sign::before{left:0;top:6px;width:14px;height:2px}
.faq-sign::after{left:6px;top:0;width:2px;height:14px}
.faq-item.is-open .faq-sign::after{transform:scaleY(0);opacity:0}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .22s ease}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{padding:0 0 18px;font-size:15px;line-height:1.8;color:var(--muted);max-width:52ch}
.faq-q:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

/* ============ 条款速查 ============ */
.rule-wrap{display:grid;grid-template-columns:minmax(0,320px) minmax(0,1fr);gap:56px;align-items:start}
.rule-intro p{font-size:15px;color:var(--muted);line-height:1.85;margin-top:14px}
.rule-intro .stat-row{display:flex;gap:32px;margin-top:28px}
.stat b{display:block;font-family:'Space Grotesk',sans-serif;font-size:28px;color:var(--cyan);font-variant-numeric:tabular-nums;line-height:1.1}
.stat span{font-size:13px;color:var(--muted)}
.rule-list{border-top:1px solid var(--line)}
.rule-item{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:20px;
  padding:22px 4px;border-bottom:1px solid var(--line);
  transition:background .18s ease,padding-left .18s ease;
}
.rule-num{font-family:'Space Grotesk',sans-serif;font-size:24px;font-weight:700;color:rgba(61,232,210,.55);font-variant-numeric:tabular-nums;line-height:1.2}
.rule-item h3{font-size:17px}
.rule-item p{margin-top:6px;font-size:14.5px;color:var(--muted);line-height:1.8}
.rule-item .badge{margin-top:12px}

/* ============ 协助区 ============ */
.help-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch}
.help-main{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line);min-height:300px;
  display:flex;align-items:flex-end;box-shadow:var(--shadow);
}
.help-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42}
.help-main::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,24,.15),rgba(6,10,24,.92))}
.help-main-body{position:relative;z-index:1;padding:28px}
.help-main-body h3{font-size:20px}
.help-main-body p{margin-top:10px;font-size:14.5px;color:var(--body);max-width:40ch;line-height:1.8}
.help-main-body .btn{margin-top:20px}
.help-side{display:grid;gap:24px}
.help-card{
  padding:24px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--panel);box-shadow:var(--shadow);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;gap:10px;
}
.help-card h3{font-size:17px}
.help-card p{font-size:14px;color:var(--muted);line-height:1.8}
.help-card .link-arrow{font-size:14px;color:var(--cyan);margin-top:auto;display:inline-flex;align-items:center;gap:6px}
.help-card .link-arrow svg{width:14px;height:14px;stroke:currentColor;transition:transform .18s ease}

/* ============ CTA ============ */
.cta-band{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  padding:40px;border-radius:var(--r-card);
  border:1px solid rgba(61,232,210,.28);
  background:linear-gradient(120deg,rgba(18,26,48,.92),rgba(11,18,38,.72));
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px)}
.cta-band p{margin-top:12px;font-size:15px;color:var(--muted);max-width:52ch;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);padding:64px 0 28px;margin-top:var(--gap);position:relative;z-index:1;background:rgba(6,10,24,.6)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:baseline;gap:8px;margin-bottom:16px}
.footer-brand strong{font-size:17px;font-weight:800;color:var(--text)}
.footer-brand em{font-style:normal;font-size:11px;color:var(--muted);letter-spacing:.16em}
.footer-about{font-size:13.5px;color:var(--muted);line-height:1.9;max-width:34ch}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--body);
  transition:border-color .18s ease,color .18s ease,transform .18s ease;
}
.footer-social svg{width:16px;height:16px;stroke:currentColor}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:13.5px;color:var(--muted);transition:color .18s ease}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:var(--muted);line-height:1.8;
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease-out,transform .3s ease-out}
.reveal.is-in{opacity:1;transform:none}

@media (hover:hover){
  .btn-primary:hover{background:#5DF0DD;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(61,232,210,.5),0 14px 34px rgba(61,232,210,.28)}
  .btn-secondary:hover{background:rgba(61,232,210,.1);border-color:rgba(61,232,210,.7)}
  .btn-ghost:hover{border-color:var(--line-strong);background:rgba(17,26,51,.85);transform:translateY(-1px)}
  .nav-link:hover{color:var(--text);background:rgba(234,240,255,.05)}
  .link-login:hover{color:var(--cyan)}
  .tag:hover{color:var(--cyan);border-color:rgba(61,232,210,.5);background:rgba(61,232,210,.08);transform:translateY(-1px)}
  .faq-q:hover{color:var(--cyan)}
  .rule-item:hover{background:rgba(17,26,51,.45);padding-left:12px}
  .help-card:hover{border-color:rgba(61,232,210,.4);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
  .help-card:hover .link-arrow svg{transform:translateX(3px)}
  .footer-col a:hover{color:var(--text)}
  .footer-social a:hover{border-color:rgba(61,232,210,.55);color:var(--cyan);transform:translateY(-2px)}
  .crumbs a:hover{color:var(--text)}
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .search{width:190px}
  .nav-link{padding:9px 9px;font-size:13.5px}
  .rule-wrap{grid-template-columns:1fr;gap:32px}
}
@media (max-width:1023px){
  :root{--gap:72px}
  .nav-links{display:none}
  .drawer-btn{display:grid}
  .search{display:none}
  .page-head-inner{grid-template-columns:1fr;gap:28px}
  .page-head-aside{flex-direction:row;align-items:center}
  .page-head-aside img{width:180px}
  .mini-card{width:auto;flex:1}
  .faq-grid{grid-template-columns:1fr;gap:36px}
  .help-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--gap:64px;--pad:20px}
  .header-inner{height:64px;gap:12px}
  .brand-text em{letter-spacing:.1em}
  .link-login{display:none}
  .header-actions .btn-sm{display:none}
  .page-head{padding:28px 0 0}
  .page-head-aside img{width:100%;aspect-ratio:16/9}
  .page-head-aside{flex-direction:column;align-items:stretch}
  .search-panel{padding:22px}
  .rule-wrap{gap:24px}
  .rule-item{grid-template-columns:44px 1fr;gap:14px}
  .rule-num{font-size:20px}
  .cta-band{padding:26px}
  .cta-actions .btn{width:100%}
  .help-main{min-height:260px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .lede{font-size:15px}
  .head-meta{gap:8px}
  .section-head{margin-bottom:26px}
  .faq-q{font-size:15px;padding:16px 0}
  .stat-row{flex-wrap:wrap;gap:20px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,.reveal{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}