/* roulang page: index */
:root{
  --bg-0:#05080d;
  --bg-1:#090f16;
  --bg-2:#0e1a22;
  --primary:#3ce6c0;
  --primary-deep:#12a98c;
  --accent:#ff9a3c;
  --text:#eaf3f5;
  --text-2:#9db3be;
  --text-3:#6c818c;
  --line:rgba(60,230,192,.18);
  --line-2:rgba(255,255,255,.07);
  --glass:rgba(255,255,255,.06);
  --radius-l:24px;
  --radius:20px;
  --radius-s:14px;
  --shadow:0 18px 44px rgba(0,0,0,.5);
  --glow:0 0 22px rgba(60,230,192,.28);
  --glow-accent:0 0 30px rgba(255,154,60,.4);
  --ease:.18s ease;
  --num-font:"Barlow","DIN Alternate","Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 520px at 10% -8%, rgba(60,230,192,.10), transparent 62%),
    radial-gradient(760px 480px at 94% 6%, rgba(255,154,60,.07), transparent 64%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:#7ff2d8}
button{font-family:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
::selection{background:rgba(60,230,192,.3);color:#fff}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;position:relative;z-index:1}
.section{padding:96px 0;position:relative;z-index:1}
.section--alt{background:linear-gradient(180deg,rgba(255,255,255,.014),rgba(255,255,255,0));border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section__eyebrow{display:inline-block;font-size:12px;letter-spacing:.22em;color:var(--primary);opacity:.85;margin-bottom:10px}
.section__title{font-size:32px;line-height:1.35;font-weight:800;letter-spacing:.02em}
.section__desc{color:var(--text-2);font-size:15px;margin-top:10px;max-width:640px}
.more-link{font-size:15px;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.more-link:hover{gap:10px}
.more-link::after{content:"→"}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:16px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease),filter var(--ease);
  white-space:nowrap;
}
.btn--primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#04140f;box-shadow:var(--glow)}
.btn--primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 26px rgba(60,230,192,.45),0 0 32px rgba(255,154,60,.3);color:#03110d}
.btn--primary:active{transform:translateY(0);box-shadow:0 0 14px rgba(60,230,192,.32)}
.btn--ghost{background:rgba(60,230,192,.06);border-color:var(--line);color:var(--text)}
.btn--ghost:hover{background:rgba(60,230,192,.13);border-color:rgba(60,230,192,.42);color:#fff;transform:translateY(-2px)}
.btn--sm{height:44px;padding:0 22px;font-size:15px}
.btn--xs{height:38px;padding:0 18px;font-size:14px}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12px;letter-spacing:.06em;color:var(--primary);background:rgba(60,230,192,.1);border:1px solid var(--line)}
.tag--accent{color:var(--accent);background:rgba(255,154,60,.1);border-color:rgba(255,154,60,.28)}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,10,16,.74);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.site-header.is-stuck{background:rgba(5,8,13,.92);border-bottom-color:var(--line);box-shadow:0 14px 34px rgba(0,0,0,.5)}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:72px;transition:height .28s ease}
.site-header.is-stuck .header__inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:18px;letter-spacing:.01em}
.logo:hover{color:#fff}
.logo__mark{
  width:36px;height:36px;border-radius:12px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(60,230,192,.3),rgba(255,154,60,.22));
  border:1px solid var(--line);box-shadow:var(--glow);
}
.logo__mark svg{width:20px;height:20px}
.nav{display:flex;align-items:center;gap:6px}
.nav__link{position:relative;padding:8px 14px;font-size:15px;font-weight:600;color:var(--text-2)}
.nav__link::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);border-radius:2px}
.nav__link:hover{color:var(--text)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--primary)}
.nav__link.is-active::after{transform:scaleX(1)}
.header__actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:rgba(60,230,192,.06);cursor:pointer;padding:0;position:relative;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);margin:3px auto;border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.drawer{
  position:fixed;left:0;right:0;top:72px;z-index:55;
  background:rgba(6,11,17,.97);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  padding:16px 20px 24px;
  display:none;flex-direction:column;gap:6px;
  transform:translateY(-12px);opacity:0;transition:opacity .24s ease,transform .24s ease;
}
.drawer.is-open{display:flex;transform:translateY(0);opacity:1}
.drawer__link{padding:14px 6px;font-size:16px;font-weight:600;color:var(--text-2);border-bottom:1px solid var(--line-2)}
.drawer__link.is-active{color:var(--primary)}
.drawer__cta{margin-top:18px;width:100%}

/* Hero */
.hero{position:relative;padding:72px 0 84px;overflow:hidden;z-index:1}
.hero__bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.3;z-index:-2}
.hero__veil{position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(5,8,13,.62) 0%,rgba(5,8,13,.88) 62%,var(--bg-0) 100%)}
.hero__inner{display:grid;grid-template-columns:1.12fr .88fr;gap:64px;align-items:center}
.hero__badge{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;background:rgba(60,230,192,.1);border:1px solid var(--line);font-size:13px;color:var(--primary);margin-bottom:22px}
.hero__badge i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(255,154,60,.9);display:inline-block;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-size:48px;line-height:1.28;font-weight:800;letter-spacing:.02em;max-width:15em}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero__sub{margin-top:20px;font-size:18px;color:var(--text-2);max-width:22em}
.hero__actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero__stats{
  margin-top:52px;display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-radius:var(--radius);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(14px);overflow:hidden;
}
.hero__stat{padding:18px 20px;border-right:1px solid var(--line-2)}
.hero__stat:last-child{border-right:0}
.hero__stat b{display:block;font-family:var(--num-font);font-size:26px;font-weight:800;color:var(--accent);letter-spacing:.02em}
.hero__stat span{font-size:13px;color:var(--text-2)}
.vframe{
  position:relative;width:100%;max-width:340px;margin-left:auto;aspect-ratio:9/16;
  border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(60,230,192,.24),rgba(255,154,60,.16));
  box-shadow:var(--shadow),var(--glow);
}
.vframe img{width:100%;height:100%;object-fit:cover}
.vframe__shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,13,.15) 0%,rgba(5,8,13,0) 40%,rgba(5,8,13,.86) 100%)}
.vframe__pill{position:absolute;top:16px;left:16px;display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;border-radius:999px;background:rgba(5,8,13,.6);border:1px solid var(--line);font-size:12px;color:var(--text)}
.vframe__pill i{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block;box-shadow:0 0 10px rgba(255,154,60,.8)}
.vframe__info{position:absolute;left:18px;right:18px;bottom:18px}
.vframe__info b{display:block;font-size:17px;font-weight:800;line-height:1.5}
.vframe__info span{font-size:13px;color:var(--text-2)}

/* 横滑片段卡 */
.rail{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 26px;scroll-snap-type:x mandatory;-ms-overflow-style:none;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.clip{
  flex:0 0 calc((100% - 60px)/4.5);scroll-snap-align:start;
  border-radius:var(--radius);border:1px solid var(--line-2);background:var(--bg-1);
  padding:12px;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.clip:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--shadow)}
.clip__cover{position:relative;aspect-ratio:4/5;border-radius:var(--radius-s);overflow:hidden;background:linear-gradient(150deg,rgba(60,230,192,.28),rgba(255,154,60,.18))}
.clip__cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.clip:hover .clip__cover img{transform:scale(1.04)}
.clip__time{position:absolute;right:10px;bottom:10px;height:24px;padding:0 10px;display:inline-flex;align-items:center;border-radius:999px;background:rgba(5,8,13,.72);font-size:12px;font-family:var(--num-font);color:#fff}
.clip__play{position:absolute;left:10px;top:10px;width:0;height:0;border-left:11px solid rgba(255,255,255,.92);border-top:7px solid transparent;border-bottom:7px solid transparent;filter:drop-shadow(0 0 8px rgba(0,0,0,.6))}
.clip__body{padding:14px 6px 6px}
.clip__title{font-size:16px;font-weight:700;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:50px}
.clip:hover .clip__title{color:var(--primary)}
.clip__meta{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:13px;color:var(--text-2)}
.clip__author{display:flex;align-items:center;gap:8px}
.clip__avatar{width:24px;height:24px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#04140f;background:linear-gradient(135deg,var(--primary),var(--primary-deep))}
.clip__hot{color:var(--accent);font-family:var(--num-font);font-weight:700}

/* 精选清单 */
.picks{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.pick{
  display:grid;grid-template-columns:88px 92px 1fr auto;align-items:center;gap:20px;
  padding:20px 22px;border-radius:var(--radius);border:1px solid var(--line-2);
  background:linear-gradient(150deg,rgba(255,255,255,.05),rgba(255,255,255,.015));
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.pick:hover{border-color:var(--line);transform:translateX(4px);box-shadow:var(--shadow)}
.pick__num{font-family:var(--num-font);font-size:42px;font-weight:800;line-height:1;color:transparent;-webkit-text-stroke:1.4px rgba(60,230,192,.45);transition:all var(--ease)}
.pick:hover .pick__num{-webkit-text-stroke-color:var(--accent);text-shadow:0 0 18px rgba(255,154,60,.5)}
.pick__thumb{width:92px;aspect-ratio:1/1;border-radius:var(--radius-s);overflow:hidden;background:linear-gradient(150deg,rgba(60,230,192,.24),rgba(255,154,60,.16))}
.pick__thumb img{width:100%;height:100%;object-fit:cover}
.pick__title{font-size:17px;font-weight:700;line-height:1.55}
.pick__desc{font-size:14px;color:var(--text-2);margin-top:6px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.pick__go{font-size:14px;font-weight:700;color:var(--primary);white-space:nowrap}

/* 评论滚动 */
.marquee{overflow:hidden;position:relative;padding:4px 0;mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 7%,#000 93%,transparent)}
.marquee + .marquee{margin-top:18px}
.marquee__track{display:flex;gap:18px;width:max-content;animation:slide 46s linear infinite}
.marquee--reverse .marquee__track{animation-direction:reverse;animation-duration:54s}
.marquee:hover .marquee__track{animation-play-state:paused}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.review{
  width:330px;padding:18px 20px;border-radius:var(--radius);border:1px solid var(--line-2);
  background:var(--glass);backdrop-filter:blur(12px);
}
.review__top{display:flex;align-items:center;gap:12px}
.review__avatar{width:38px;height:38px;border-radius:50%;flex:none;display:inline-flex;align-items:center;justify-content:center;font-weight:800;color:#04140f}
.review__name{font-size:13px;font-weight:700}
.review__stars{font-size:12px;color:var(--accent);letter-spacing:2px}
.review__text{font-size:14px;color:var(--text-2);margin-top:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.75}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  display:flex;flex-direction:column;padding:26px 24px;border-radius:var(--radius);
  border:1px solid var(--line-2);background:var(--bg-1);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.news-card:hover{border-color:var(--line);transform:translateY(-4px);box-shadow:var(--shadow)}
.news-card__top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.news-card__time{font-size:13px;color:var(--text-3);font-family:var(--num-font)}
.news-card__title{font-size:17px;font-weight:700;line-height:1.6;margin-bottom:12px}
.news-card__title a{color:var(--text)}
.news-card__title a:hover{color:var(--primary)}
.news-card__desc{font-size:14px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.news-card__link{margin-top:18px;font-size:14px;font-weight:700;color:var(--primary)}
.empty-state{
  grid-column:1/-1;padding:60px 24px;border-radius:var(--radius);border:1px dashed var(--line);
  background:var(--glass);text-align:center;
}
.empty-state__icon{width:56px;height:56px;margin:0 auto 16px;border-radius:18px;display:flex;align-items:center;justify-content:center;background:linear-gradient(140deg,rgba(60,230,192,.22),rgba(255,154,60,.16));border:1px solid var(--line)}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:20px}

/* FAQ */
.faq{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq__item{border-radius:var(--radius);border:1px solid var(--line-2);background:var(--glass);backdrop-filter:blur(12px);overflow:hidden;transition:border-color var(--ease)}
.faq__item.is-open{border-color:var(--line)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:0;color:var(--text);font-size:16px;font-weight:700;
  text-align:left;cursor:pointer;position:relative;transition:color var(--ease);
}
.faq__q::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:transparent;transition:background var(--ease),box-shadow var(--ease)}
.faq__item.is-open .faq__q::before{background:var(--primary);box-shadow:0 0 14px rgba(60,230,192,.7)}
.faq__q:hover{color:var(--primary)}
.faq__icon{width:12px;height:12px;flex:none;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(45deg);transition:transform .24s ease;margin-bottom:4px}
.faq__item.is-open .faq__icon{transform:rotate(-135deg);margin-bottom:0}
.faq__a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq__a p{padding:0 24px 22px 24px;font-size:15px;color:var(--text-2);line-height:1.8}

/* CTA 条 */
.cta-bar{
  border-radius:var(--radius-l);border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(60,230,192,.12),rgba(255,154,60,.08) 70%,rgba(255,255,255,.03));
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-bar h2{font-size:26px;font-weight:800;line-height:1.5}
.cta-bar p{color:var(--text-2);font-size:15px;margin-top:8px}

/* 页脚 */
.site-footer{position:relative;z-index:1;border-top:1px solid var(--line);background:var(--bg-1);padding:72px 0 0;margin-top:24px}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:44px}
.footer__brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--text);margin-bottom:16px}
.footer__text{font-size:14px;color:var(--text-2);line-height:1.9;max-width:34em}
.footer__title{font-size:14px;font-weight:700;color:var(--primary);margin-bottom:16px;letter-spacing:.04em}
.footer__list li{margin-bottom:10px}
.footer__list a,.footer__list span{font-size:14px;color:var(--text-2)}
.footer__list a:hover{color:var(--primary)}
.footer__bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--text-3);
}

/* 吸底 CTA */
.sticky-cta{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:60px;padding:0 16px;align-items:center;justify-content:space-between;gap:12px;
  background:rgba(6,11,17,.96);backdrop-filter:blur(16px);border-top:1px solid var(--line);
}
.sticky-cta.is-show{display:flex}
.sticky-cta__text{font-size:14px;font-weight:700;color:var(--text)}
.sticky-cta__close{width:30px;height:30px;border-radius:50%;border:1px solid var(--line-2);background:none;color:var(--text-2);font-size:16px;line-height:1;cursor:pointer;flex:none}
.sticky-cta__close:hover{color:var(--text);border-color:var(--line)}

/* 响应式 */
@media (max-width:1200px){
  .clip{flex:0 0 calc((100% - 40px)/3.5)}
  .hero h1{font-size:42px}
}
@media (max-width:1024px){
  .nav{display:none}
  .nav-toggle{display:block}
  .header__actions .btn{display:none}
  .hero__inner{grid-template-columns:1fr;gap:48px}
  .vframe{margin:0 auto;max-width:300px}
  .hero h1{font-size:38px}
  .picks{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section__title{font-size:24px}
  .hero{padding:48px 0 56px}
  .hero h1{font-size:30px}
  .hero__sub{font-size:16px}
  .hero__stats{grid-template-columns:repeat(2,1fr)}
  .hero__stat:nth-child(2){border-right:0}
  .hero__stat:nth-child(1),.hero__stat:nth-child(2){border-bottom:1px solid var(--line-2)}
  .clip{flex:0 0 76%}
  .pick{grid-template-columns:64px 1fr;gap:16px;padding:18px;align-items:flex-start}
  .pick__num{font-size:32px;grid-row:span 2}
  .pick__thumb{display:none}
  .pick__go{grid-column:2}
  .news-grid{grid-template-columns:1fr}
  .cta-bar{padding:28px 24px}
  .cta-bar h2{font-size:20px}
  .footer__grid{grid-template-columns:1fr;gap:32px}
  .review{width:270px}
  body{padding-bottom:72px}
}
@media (max-width:520px){
  .hero__actions .btn{width:100%}
  .section__head{margin-bottom:28px}
  .header__inner{height:64px}
  .logo{font-size:16px}
  .logo__mark{width:32px;height:32px}
}
@media (max-width:420px){
  .hero__stats{grid-template-columns:1fr}
  .hero__stat{border-right:0;border-bottom:1px solid var(--line-2)}
  .hero__stat:last-child{border-bottom:0}
}

/* roulang page: category1 */
:root{
  --bg-0:#05101a;
  --bg-1:#0a1c28;
  --bg-2:#0f2836;
  --primary:#3ce6c0;
  --primary-deep:#12a58a;
  --accent:#ff9a3c;
  --text:#eaf6f8;
  --text-2:#9fbcc6;
  --text-3:#6b8894;
  --line:rgba(60,230,192,.18);
  --line-soft:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.06);
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:14px;
  --shadow-card:0 18px 40px rgba(0,0,0,.38),0 0 0 1px rgba(60,230,192,.06);
  --glow-primary:0 0 22px rgba(60,230,192,.35);
  --glow-accent:0 0 28px rgba(255,154,60,.38);
  --space-section:96px;
  --font:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg-0);
  color:var(--text);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover{color:#7ff3d8}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--space-section) 0;position:relative}
.section--alt{background:var(--bg-1)}
.section--line{border-top:1px solid var(--line-soft)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;color:var(--primary);
  text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.section__title{font-size:32px;line-height:1.35;font-weight:800;letter-spacing:.02em}
.section__sub{color:var(--text-2);font-size:15px;max-width:640px;margin-top:10px}
.text-link{font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.text-link::after{content:"→";transition:transform .18s ease}
.text-link:hover::after{transform:translateX(4px)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,16,26,.72);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-soft);
  transition:background .24s ease,border-color .24s ease;
}
.site-header.is-scrolled{background:rgba(5,16,26,.92);border-bottom-color:var(--line)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--text);letter-spacing:.02em;white-space:nowrap}
.logo__mark{width:32px;height:32px;display:grid;place-items:center;border-radius:10px;background:linear-gradient(150deg,rgba(60,230,192,.22),rgba(255,154,60,.14));border:1px solid var(--line)}
.logo__mark svg{width:20px;height:20px}
.nav{display:flex;align-items:center;gap:6px}
.nav__link{
  position:relative;font-size:15px;color:var(--text-2);padding:10px 14px;border-radius:10px;font-weight:500;
}
.nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav__link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--text)}
.nav__link.is-active::after{transform:scaleX(1)}
.nav__actions{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:700;letter-spacing:.02em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn--primary{
  color:#04211c;background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:var(--glow-primary);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(60,230,192,.5);filter:brightness(1.06);color:#04211c}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{color:var(--text);border-color:rgba(60,230,192,.42);background:transparent}
.btn--ghost:hover{background:rgba(60,230,192,.1);color:var(--text);transform:translateY(-2px)}
.btn--accent{
  color:#2a1400;background:linear-gradient(135deg,#ffb768,var(--accent));box-shadow:var(--glow-accent);
}
.btn--accent:hover{transform:translateY(-2px);filter:brightness(1.06);color:#2a1400;box-shadow:0 0 36px rgba(255,154,60,.5)}
.btn--lg{height:52px;padding:0 30px;font-size:16px}
.nav__toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;background:rgba(255,255,255,.04);
}
.nav__toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav__toggle span::before,.nav__toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav__toggle span::before{top:-6px}
.nav__toggle span::after{top:6px}
.drawer{
  position:fixed;left:0;right:0;top:76px;bottom:0;z-index:55;
  background:rgba(5,16,26,.98);backdrop-filter:blur(16px);
  padding:24px 24px 96px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer a{display:block;padding:16px 4px;font-size:17px;color:var(--text);border-bottom:1px solid var(--line-soft);font-weight:500}
.drawer a.is-active{color:var(--primary)}
.drawer__cta{position:fixed;left:24px;right:24px;bottom:24px}
.drawer__cta .btn{width:100%}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;padding:72px 0 88px;
  background-image:linear-gradient(180deg,rgba(5,16,26,.86),rgba(5,16,26,.97)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line-soft);
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(60,230,192,.16),transparent 66%);pointer-events:none;
}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.breadcrumb{font-size:13px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{margin:0 8px;opacity:.6}
.hero h1{font-size:46px;line-height:1.28;font-weight:800;letter-spacing:.02em}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero__lead{margin-top:20px;font-size:17px;color:var(--text-2);max-width:560px}
.hero__btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--primary);
  padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(60,230,192,.07);
}
.tag--accent{color:var(--accent);border-color:rgba(255,154,60,.3);background:rgba(255,154,60,.08)}
.hero__visual{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  background:linear-gradient(160deg,rgba(60,230,192,.14),rgba(255,154,60,.12));
  aspect-ratio:16/11;
}
.hero__visual img{width:100%;height:100%;object-fit:cover;opacity:.92}
.hero__visual figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:24px;
  background:linear-gradient(180deg,transparent,rgba(5,16,26,.92));
  font-size:14px;color:var(--text-2);
}
.hero__visual figcaption strong{display:block;color:var(--text);font-size:16px;margin-bottom:4px}
.pulse{
  position:absolute;top:18px;left:18px;display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;font-size:12px;color:#04211c;font-weight:700;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
}
.pulse i{width:7px;height:7px;border-radius:50%;background:#04211c;animation:blink 1.6s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}

/* ============ 指标条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  margin-top:-44px;position:relative;z-index:5;
}
.metric{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:22px 20px;backdrop-filter:blur(14px);
}
.metric b{display:block;font-size:28px;font-weight:800;color:var(--primary);letter-spacing:.02em;line-height:1.2}
.metric span{display:block;font-size:13px;color:var(--text-2);margin-top:6px}

/* ============ 瀑布双列 ============ */
.waterfall{display:grid;grid-template-columns:repeat(2,1fr);gap:32px 28px}
.wf-card{
  background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.wf-card:nth-child(even){margin-top:44px}
.wf-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:0 24px 48px rgba(0,0,0,.45),0 0 0 1px rgba(60,230,192,.18)}
.wf-card__cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(150deg,rgba(60,230,192,.18),rgba(255,154,60,.14))}
.wf-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.wf-card:hover .wf-card__cover img{transform:scale(1.04)}
.wf-card__badge{
  position:absolute;top:14px;left:14px;font-size:12px;padding:6px 12px;border-radius:999px;
  background:rgba(5,16,26,.72);border:1px solid var(--line);color:var(--primary);backdrop-filter:blur(8px);
}
.wf-card__body{padding:24px 24px 26px}
.wf-card__body h3{font-size:21px;font-weight:800;line-height:1.5;letter-spacing:.01em}
.wf-card__body p{margin-top:12px;color:var(--text-2);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.wf-card__meta{display:flex;align-items:center;justify-content:space-between;margin-top:20px;font-size:13px;color:var(--text-3)}
.wf-card:hover .wf-card__body h3{color:var(--primary)}

/* ============ 编号清单 ============ */
.checklist{display:grid;gap:16px}
.check-item{
  display:grid;grid-template-columns:88px 1fr auto;gap:22px;align-items:center;
  padding:24px 26px;border-radius:var(--radius-sm);
  background:var(--bg-2);border:1px solid var(--line-soft);
  transition:border-color .2s ease,transform .2s ease;
}
.check-item:hover{border-color:var(--line);transform:translateX(4px)}
.check-item__num{
  font-size:34px;font-weight:800;line-height:1;color:transparent;
  -webkit-text-stroke:1.4px rgba(60,230,192,.55);letter-spacing:.02em;
}
.check-item:hover .check-item__num{-webkit-text-stroke:1.4px var(--accent)}
.check-item h3{font-size:18px;font-weight:700;margin-bottom:6px}
.check-item p{font-size:14px;color:var(--text-2);margin:0}
.check-item__tag{font-size:13px;color:var(--primary);white-space:nowrap}

/* ============ FAQ ============ */
.faq{display:grid;gap:14px;max-width:900px;margin:0 auto}
.faq__item{background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--radius-sm);overflow:hidden;transition:border-color .2s ease}
.faq__item.is-open{border-color:var(--line)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;font-size:16px;font-weight:700;text-align:left;color:var(--text);
}
.faq__q:hover{color:var(--primary)}
.faq__icon{flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);position:relative}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:var(--primary);left:50%;top:50%;transform:translate(-50%,-50%)}
.faq__icon::before{width:9px;height:1.6px}
.faq__icon::after{width:1.6px;height:9px;transition:transform .24s ease}
.faq__item.is-open .faq__icon::after{transform:translate(-50%,-50%) scaleY(0)}
.faq__a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq__a p{padding:0 22px 22px;font-size:15px;color:var(--text-2);line-height:1.8}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(10,28,40,.96),rgba(18,60,72,.92)),
    url('/assets/images/backpic/back-3.webp') center/cover;
  border:1px solid var(--line);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;bottom:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,154,60,.2),transparent 68%);
}
.cta-band__text{position:relative;z-index:2}
.cta-band__text h2{font-size:28px;font-weight:800;line-height:1.4}
.cta-band__text p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:520px}

/* ============ 页脚 ============ */
.site-footer{margin-top:var(--space-section);background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 28px}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.15fr;gap:40px}
.footer__brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--text);margin-bottom:16px}
.footer__brand .logo__mark{width:30px;height:30px}
.footer__text{font-size:14px;color:var(--text-2);line-height:1.85;max-width:340px}
.footer__title{font-size:14px;color:var(--primary);font-weight:700;margin-bottom:16px;letter-spacing:.04em}
.footer__list li{margin-bottom:11px}
.footer__list a,.footer__list span{font-size:14px;color:var(--text-2)}
.footer__list a:hover{color:var(--primary)}
.footer__bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero h1{font-size:40px}
  .metrics{grid-template-columns:repeat(2,1fr);margin-top:-32px}
}
@media (max-width:992px){
  .nav{display:none}
  .nav__toggle{display:inline-flex}
  .nav__actions .btn{display:none}
  .hero__inner{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:34px}
  .waterfall{grid-template-columns:1fr;gap:24px}
  .wf-card:nth-child(even){margin-top:0}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  :root{--space-section:64px}
  .section__title{font-size:26px}
}
@media (max-width:768px){
  .container{padding:0 22px}
  .nav__inner{height:68px}
  .drawer{top:68px}
  .hero{padding:48px 0 64px}
  .hero h1{font-size:29px}
  .hero__lead{font-size:15px}
  .btn{height:42px;padding:0 18px;font-size:14px}
  .btn--lg{height:48px;padding:0 24px;font-size:15px}
  .metrics{grid-template-columns:1fr 1fr;gap:12px;margin-top:-24px}
  .metric{padding:18px 16px}
  .metric b{font-size:22px}
  .check-item{grid-template-columns:56px 1fr;gap:14px;padding:20px 18px}
  .check-item__num{font-size:26px}
  .check-item__tag{grid-column:2;color:var(--text-3)}
  .cta-band{padding:34px 24px}
  .cta-band__text h2{font-size:22px}
  .section__title{font-size:23px}
  .section__head{margin-bottom:30px}
  :root{--space-section:52px}
}
@media (max-width:520px){
  .footer__grid{grid-template-columns:1fr}
  .hero h1{font-size:26px}
  .logline,.hero__visual figcaption{padding:16px}
  .metrics{grid-template-columns:1fr}
  .cta-band .btn{width:100%}
}

/* roulang page: article */
:root{
  --bg-0:#04090b;
  --bg-1:#081215;
  --bg-2:#0d1a1f;
  --glass:rgba(255,255,255,.06);
  --glass-strong:rgba(255,255,255,.09);
  --primary:#3ce6c0;
  --primary-deep:#0f9f85;
  --accent:#ff9a3c;
  --text:#eaf6f4;
  --text-2:#9cb2b1;
  --text-3:#6b8180;
  --line:rgba(60,230,192,.18);
  --line-soft:rgba(255,255,255,.08);
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --r-pill:999px;
  --shadow:0 18px 48px rgba(0,0,0,.55);
  --glow:0 0 26px rgba(60,230,192,.28);
  --glow-accent:0 0 30px rgba(255,154,60,.38);
  --font:"PingFang SC","Noto Sans SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Barlow","DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(60,230,192,.10), transparent 62%),
    radial-gradient(900px 520px at 96% 4%, rgba(255,154,60,.08), transparent 60%),
    var(--bg-0);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover{color:#7ff2d8}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.02em;line-height:1.35}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}

/* ============ 顶部阅读进度 ============ */
.read-progress{position:fixed;top:0;left:0;right:0;height:2px;background:rgba(255,255,255,.05);z-index:120}
.read-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--accent));box-shadow:0 0 12px rgba(60,230,192,.6);transition:width .12s linear}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  background:rgba(4,9,11,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(4,9,11,.92);border-bottom-color:var(--line);box-shadow:0 12px 40px rgba(0,0,0,.5)}
.header__inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .header__inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:18px;letter-spacing:.02em;white-space:nowrap}
.logo:hover{color:var(--text)}
.logo__mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:linear-gradient(150deg,rgba(60,230,192,.22),rgba(255,154,60,.14));border:1px solid var(--line);box-shadow:var(--glow)}
.logo__mark svg{width:22px;height:22px}
.nav{display:flex;align-items:center;gap:6px;margin-left:12px}
.nav__link{position:relative;padding:10px 12px;font-size:15px;font-weight:600;color:var(--text-2);border-radius:12px}
.nav__link::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--accent));transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.nav__link:hover{color:var(--text)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--text)}
.nav__link.is-active::after{transform:scaleX(1)}
.header__actions{margin-left:auto;display:flex;align-items:center;gap:12px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-pill);font-size:15px;font-weight:700;letter-spacing:.02em;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;white-space:nowrap}
.btn--sm{height:44px;padding:0 22px}
.btn--primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#04120f;box-shadow:0 0 0 1px rgba(60,230,192,.35),var(--glow),0 10px 26px rgba(15,159,133,.3)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(60,230,192,.5),0 0 32px rgba(60,230,192,.45),var(--glow-accent);color:#04120f}
.btn--primary:active{transform:translateY(1px)}
.btn--accent{background:linear-gradient(135deg,var(--accent),#e97b16);color:#20100a;box-shadow:var(--glow-accent)}
.btn--accent:hover{transform:translateY(-2px);color:#20100a;box-shadow:0 0 34px rgba(255,154,60,.55)}
.btn--ghost{border:1px solid var(--line);color:var(--text);background:rgba(60,230,192,.04)}
.btn--ghost:hover{background:rgba(60,230,192,.12);border-color:rgba(60,230,192,.4);color:var(--text);transform:translateY(-2px)}

/* ============ 汉堡与抽屉 ============ */
.burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .22s ease,opacity .22s ease}
.burger.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer{
  display:none;position:fixed;left:0;right:0;top:72px;bottom:0;z-index:99;
  background:rgba(4,9,11,.97);backdrop-filter:blur(20px);
  padding:24px 20px 96px;overflow-y:auto;
}
.drawer.is-open{display:block}
.drawer__link{display:block;padding:16px 12px;font-size:17px;font-weight:600;color:var(--text);border-bottom:1px solid var(--line-soft)}
.drawer__link.is-active{color:var(--primary)}
.drawer__cta{position:fixed;left:20px;right:20px;bottom:20px}

/* ============ 面包屑 ============ */
.crumb-bar{border-bottom:1px solid var(--line-soft);background:linear-gradient(180deg,rgba(8,18,21,.7),rgba(4,9,11,.2))}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding:16px 0;flex-wrap:wrap}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--text-3);opacity:.6}
.crumb__now{color:var(--text);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部 ============ */
.article-hero{position:relative;padding:52px 0 40px;overflow:hidden}
.article-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(4,9,11,.72),rgba(4,9,11,.94)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.55;
}
.article-head{max-width:820px}
.chip{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--line);background:rgba(60,230,192,.08);color:var(--primary);font-size:13px;font-weight:700}
.article-head h1{font-size:40px;line-height:1.3;margin:20px 0 18px;letter-spacing:.01em}
.meta-row{display:flex;align-items:center;gap:12px 22px;flex-wrap:wrap;font-size:13px;color:var(--text-2)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3)}
.meta-row strong{color:var(--text);font-weight:700}
.meta-num{font-family:var(--font-num);color:var(--accent);font-weight:700;letter-spacing:.04em}

/* ============ 正文 ============ */
.article-main{padding:8px 0 96px}
.article-wrap{display:grid;grid-template-columns:minmax(0,760px) 1fr;gap:56px;align-items:start}
.article-body{font-size:17px;line-height:1.9;color:#dcebe9}
.article-body>*+*{margin-top:18px}
.article-body h2{
  position:relative;font-size:28px;line-height:1.4;margin-top:44px;padding-left:16px;color:var(--text)
}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:linear-gradient(180deg,var(--primary),var(--accent));box-shadow:0 0 14px rgba(60,230,192,.5)}
.article-body h3{font-size:21px;margin-top:34px;color:var(--text)}
.article-body p{color:#cfe0de}
.article-body a{border-bottom:1px solid rgba(60,230,192,.4)}
.article-body strong{color:#fff}
.article-body ul,.article-body ol{margin-top:18px;padding-left:4px}
.article-body ul li,.article-body ol li{position:relative;padding-left:26px;margin-top:12px;color:#cfe0de}
.article-body ul li::before{content:"";position:absolute;left:6px;top:12px;width:8px;height:8px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(60,230,192,.55)}
.article-body ol{counter-reset:artitem}
.article-body ol li{counter-increment:artitem}
.article-body ol li::before{
  content:counter(artitem);position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:6px;
  display:flex;align-items:center;justify-content:center;font-family:var(--font-num);font-size:12px;font-weight:700;
  color:var(--primary);border:1px solid var(--line)
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--primary);border-radius:0 var(--r-sm) var(--r-sm) 0;
  background:var(--glass);backdrop-filter:blur(12px);color:var(--text-2);font-size:16px
}
.article-body img{border-radius:16px;margin:24px 0 8px;width:100%;object-fit:cover}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body code{font-family:var(--font-num);background:rgba(255,255,255,.08);padding:2px 7px;border-radius:6px;font-size:15px;color:var(--primary)}
.article-body pre{
  background:#061114;border:1px solid var(--line-soft);border-radius:var(--r-sm);padding:18px 20px;overflow-x:auto;
  font-family:var(--font-num);font-size:14px;line-height:1.7;color:#b9f5e6
}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin-top:22px;border-radius:var(--r-sm);overflow:hidden}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--line-soft);text-align:left}
.article-body th{background:rgba(60,230,192,.08);color:var(--text)}
.article-body hr{border:0;height:1px;background:var(--line-soft);margin:34px 0}

/* ============ 侧栏 ============ */
.side{position:sticky;top:104px;display:grid;gap:18px}
.side-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);padding:22px;
  backdrop-filter:blur(18px);position:relative;overflow:hidden
}
.side-card::before{content:"";position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,rgba(60,230,192,.55),transparent)}
.side-card h4{font-size:15px;color:var(--primary);margin-bottom:14px}
.side-list li+li{margin-top:12px}
.side-list a{font-size:14px;color:var(--text-2);display:flex;gap:10px;align-items:flex-start}
.side-list a:hover{color:var(--primary)}
.side-list .idx{font-family:var(--font-num);color:var(--text-3);font-weight:700}
.side-stat{display:flex;gap:16px}
.side-stat div{flex:1}
.side-stat b{display:block;font-family:var(--font-num);font-size:24px;color:var(--accent);line-height:1.2}
.side-stat span{font-size:12px;color:var(--text-3)}

/* ============ 标签区 ============ */
.tag-block{margin-top:48px;padding-top:28px;border-top:1px solid var(--line-soft)}
.tag-block h4{font-size:15px;color:var(--text-2);margin-bottom:14px}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 15px;border-radius:var(--r-pill);border:1px solid var(--line-soft);background:rgba(255,255,255,.04);font-size:13px;color:var(--text-2)}
.tag:hover{border-color:var(--line);color:var(--primary)}

/* ============ FAQ ============ */
.faq-sec{padding:88px 0;background:linear-gradient(180deg,var(--bg-1),rgba(4,9,11,.4));border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.sec-head h2{font-size:32px}
.sec-head p{font-size:15px;color:var(--text-2);margin-top:10px;max-width:60ch}
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--r-sm);overflow:hidden;transition:border-color .2s ease,background .2s ease}
.faq-item.is-open{border-color:var(--line);background:rgba(60,230,192,.06)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:16px;font-weight:700;color:var(--text);text-align:left}
.faq-item.is-open .faq-q{color:var(--primary)}
.faq-q .mark{flex:0 0 22px;height:22px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--primary);transition:transform .24s ease}
.faq-item.is-open .faq-q .mark{transform:rotate(45deg)}
.faq-a{height:0;overflow:hidden;transition:height .24s ease}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ============ 相关推荐 ============ */
.related-sec{padding:88px 0}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;border-radius:var(--r-md);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-soft);backdrop-filter:blur(16px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease
}
.card:hover{transform:translateY(-6px);border-color:var(--line);box-shadow:var(--shadow)}
.card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(60,230,192,.25),rgba(255,154,60,.2))}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card__media img{transform:scale(1.05)}
.card__body{padding:20px 20px 24px}
.card__body h3{font-size:18px;line-height:1.5;margin-bottom:10px}
.card:hover .card__body h3{color:var(--primary)}
.card__body p{font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__meta{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:12px;color:var(--text-3)}
.card__meta .pill{height:24px;padding:0 10px;border-radius:var(--r-pill);border:1px solid var(--line);color:var(--primary);display:inline-flex;align-items:center;font-size:12px}

.back-row{margin-top:44px;display:flex;justify-content:center}

/* ============ CTA 条 ============ */
.cta-band{margin:0 0 96px}
.cta-band__inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:36px 40px;border-radius:var(--r-lg);overflow:hidden;
  background:linear-gradient(120deg,rgba(60,230,192,.14),rgba(255,154,60,.1)),var(--bg-2);
  border:1px solid var(--line);box-shadow:var(--shadow)
}
.cta-band__inner::after{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(255,154,60,.28),transparent 70%)}
.cta-band h2{font-size:26px}
.cta-band p{font-size:15px;color:var(--text-2);margin-top:8px}
.cta-band .btn{position:relative;z-index:2}

/* ============ 空态 ============ */
.empty-state{
  max-width:760px;text-align:center;padding:64px 28px;border-radius:var(--r-md);
  background:var(--glass);border:1px dashed var(--line)
}
.empty-state .ico{width:64px;height:64px;margin:0 auto 18px;border-radius:20px;display:flex;align-items:center;justify-content:center;background:linear-gradient(140deg,rgba(60,230,192,.2),rgba(255,154,60,.16));border:1px solid var(--line)}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:24px}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:72px 0 26px}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer__brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--text);margin-bottom:16px}
.footer__text{font-size:14px;color:var(--text-2);line-height:1.85;max-width:38ch}
.footer__title{font-size:14px;font-weight:700;color:var(--primary);margin-bottom:16px}
.footer__list li+li{margin-top:11px}
.footer__list a,.footer__list span{font-size:14px;color:var(--text-2)}
.footer__list a:hover{color:var(--primary)}
.footer__bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12px;color:var(--text-3)
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .article-wrap{grid-template-columns:minmax(0,1fr) 300px;gap:40px}
}
@media (max-width:992px){
  .container{padding:0 24px}
  .nav{display:none}
  .burger{display:flex}
  .header__actions .btn--sm{display:none}
  .article-wrap{grid-template-columns:1fr}
  .side{position:static}
  .article-head h1{font-size:32px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .sec-head h2,.article-body h2{font-size:26px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .article-hero{padding:36px 0 30px}
  .article-head h1{font-size:28px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:23px;margin-top:36px}
  .article-body h3{font-size:19px}
  .faq-sec,.related-sec{padding:64px 0}
  .cta-band__inner{padding:28px 22px}
  .cta-band h2{font-size:22px}
  .related-grid{grid-template-columns:1fr}
  .crumb__now{max-width:34ch}
}
@media (max-width:560px){
  .header__inner{height:64px}
  .logo{font-size:16px}
  .logo__mark{width:34px;height:34px;border-radius:10px}
  .article-head h1{font-size:24px}
  .meta-row{font-size:12px;gap:10px 14px}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start}
  .btn{height:44px;padding:0 20px;font-size:14px}
  .empty-state{padding:44px 20px}
}

/* roulang page: category2 */
:root{
  --bg-0:#050b0f;
  --bg-1:#08151b;
  --bg-2:#0d2028;
  --glass:rgba(255,255,255,.06);
  --primary:#3ce6c0;
  --primary-deep:#14a98c;
  --accent:#ff9a3c;
  --text:#e9f5f3;
  --text-2:#9db4b8;
  --text-3:#6b8188;
  --line:rgba(60,230,192,.18);
  --line-soft:rgba(60,230,192,.10);
  --radius-lg:24px;
  --radius:20px;
  --radius-sm:14px;
  --shadow:0 18px 42px rgba(0,0,0,.45);
  --glow:0 0 26px rgba(60,230,192,.28);
  --glow-accent:0 0 28px rgba(255,154,60,.35);
  --sec-pad:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;display:flex;align-items:center;
  background:rgba(5,11,15,.72);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:height .25s ease,background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{height:64px;background:rgba(5,11,15,.92);border-bottom-color:var(--line)}
.header__inner{display:flex;align-items:center;gap:26px;width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.02em;white-space:nowrap}
.logo__mark{
  width:36px;height:36px;display:grid;place-items:center;border-radius:12px;
  background:linear-gradient(150deg,rgba(60,230,192,.20),rgba(255,154,60,.14));
  border:1px solid var(--line);box-shadow:var(--glow);
}
.logo__mark svg{width:22px;height:22px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav__link{
  position:relative;padding:9px 13px;font-size:15px;font-weight:500;
  color:var(--text-2);border-radius:10px;transition:color .18s ease,background .18s ease;
}
.nav__link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:5px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav__link:hover{color:var(--text);background:rgba(60,230,192,.06)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--primary)}
.nav__link.is-active::after{transform:scaleX(1)}
.nav__cta{margin-left:14px}
.nav__toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;margin-left:auto;
}
.nav__toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:.2s}
.nav__toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav__toggle.is-open span:nth-child(2){opacity:0}
.nav__toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:55;
  background:rgba(5,11,15,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  padding:26px 24px 40px;display:flex;flex-direction:column;gap:6px;
  opacity:0;transform:translateY(-12px);pointer-events:none;transition:opacity .24s ease,transform .24s ease;
}
.drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer__link{
  padding:14px 16px;border-radius:14px;border:1px solid transparent;
  color:var(--text-2);font-size:16px;font-weight:500;
}
.drawer__link.is-active{color:var(--primary);border-color:var(--line);background:rgba(60,230,192,.07)}
.drawer__cta{margin-top:auto}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn--primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  color:#04120f;box-shadow:0 0 24px rgba(60,230,192,.32);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(60,230,192,.5);filter:brightness(1.08)}
.btn--primary:active{transform:translateY(0)}
.btn--accent{
  background:linear-gradient(135deg,#ffb05e 0%,var(--accent) 100%);
  color:#20120a;box-shadow:0 0 26px rgba(255,154,60,.38);
}
.btn--accent:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(255,154,60,.55)}
.btn--ghost{
  border:1px solid var(--line);color:var(--text);background:rgba(60,230,192,.04);
}
.btn--ghost:hover{background:rgba(60,230,192,.12);border-color:rgba(60,230,192,.4)}
.btn--lg{height:50px;padding:0 28px;font-size:16px}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-pad) 0;position:relative}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section--deep{background:linear-gradient(180deg,#04100f 0%,#061a1c 55%,#04100f 100%);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section__head{max-width:680px;margin-bottom:44px}
.section__eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;margin-bottom:16px;
  border-radius:999px;border:1px solid var(--line);background:rgba(60,230,192,.07);
  color:var(--primary);font-size:12px;font-weight:600;letter-spacing:.1em;
}
.section__lead{color:var(--text-2);font-size:16px;margin-top:14px}
h2{font-size:32px;line-height:1.35;font-weight:800;letter-spacing:.02em}
h3{font-size:20px;line-height:1.5;font-weight:700;letter-spacing:.01em}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--primary);
  background:rgba(60,230,192,.10);border:1px solid var(--line-soft);
}

/* ============ 内页首屏 ============ */
.hero{position:relative;padding:158px 0 76px;overflow:hidden}
.hero__bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.26;filter:saturate(1.05);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,11,15,.60) 0%,rgba(5,11,15,.88) 58%,var(--bg-0) 100%);
}
.hero__inner{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-3);transition:color .18s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb__cur{color:var(--text-2)}
.hero h1{
  font-size:48px;line-height:1.24;font-weight:800;letter-spacing:.02em;
  max-width:880px;margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero__sub{font-size:18px;color:var(--text-2);max-width:620px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero__stats{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:52px;
}
.hero__stats li{
  display:flex;align-items:baseline;gap:10px;
  padding:14px 22px;border-radius:var(--radius-sm);
  background:var(--glass);border:1px solid var(--line-soft);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.hero__stats strong{font-size:26px;font-weight:800;color:var(--accent);letter-spacing:.02em}
.hero__stats span{font-size:13px;color:var(--text-2)}

/* ============ 三张概览卡 ============ */
.grid{display:grid;gap:24px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.stat-card{
  position:relative;padding:30px 26px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line-soft);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  overflow:hidden;
}
.stat-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(60,230,192,.55),transparent);
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--line);box-shadow:var(--shadow)}
.stat-card__num{
  display:block;font-size:34px;font-weight:800;line-height:1;margin-bottom:16px;
  color:transparent;-webkit-text-stroke:1.4px rgba(60,230,192,.5);
  transition:color .2s ease,-webkit-text-stroke-color .2s ease;
}
.stat-card:hover .stat-card__num{color:var(--accent);-webkit-text-stroke-color:var(--accent)}
.stat-card h3{margin-bottom:10px}
.stat-card p{color:var(--text-2);font-size:15px}

/* ============ 时间轴 ============ */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:27px;top:12px;bottom:12px;width:2px;
  background-image:repeating-linear-gradient(180deg,rgba(60,230,192,.62) 0 6px,transparent 6px 15px);
  filter:drop-shadow(0 0 6px rgba(60,230,192,.5));
}
.tl-item{position:relative;padding-left:86px;margin-bottom:26px}
.tl-item:last-child{margin-bottom:0}
.tl-item__badge{
  position:absolute;left:0;top:6px;width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;font-size:17px;font-weight:800;letter-spacing:.02em;
  color:var(--primary);background:rgba(5,11,15,.94);
  border:1.5px solid rgba(60,230,192,.5);box-shadow:0 0 18px rgba(60,230,192,.22);
  transition:color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.tl-item:hover .tl-item__badge{color:var(--accent);border-color:var(--accent);box-shadow:var(--glow-accent)}
.tl-card{
  display:grid;grid-template-columns:1fr 210px;gap:26px;align-items:center;
  padding:26px 28px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line-soft);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.tl-card:hover{transform:translateX(4px);border-color:var(--line);box-shadow:var(--shadow)}
.tl-card--text{grid-template-columns:1fr}
.tl-card h3{margin:12px 0 8px}
.tl-card p{color:var(--text-2);font-size:15px}
.tl-card__thumb{
  border-radius:var(--radius-sm);overflow:hidden;aspect-ratio:16/10;position:relative;
  background:linear-gradient(135deg,rgba(60,230,192,.24),rgba(255,154,60,.18));
}
.tl-card__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.tl-card:hover .tl-card__thumb img{transform:scale(1.05)}
.tl-card__hint{
  display:inline-block;margin-top:14px;font-size:13px;color:var(--primary);
  border-left:2px solid var(--primary);padding-left:10px;
}

/* ============ 模块速览 ============ */
.meter-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.meter{
  padding:26px 22px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line-soft);
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.meter:hover{background:rgba(60,230,192,.07);border-color:var(--line);transform:translateY(-3px)}
.meter__num{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.14em}
.meter h3{font-size:17px;margin:12px 0 8px}
.meter p{font-size:14px;color:var(--text-2)}
.meter-bar{margin-top:16px;height:4px;border-radius:4px;background:rgba(255,255,255,.08);overflow:hidden}
.meter-bar i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--primary),var(--accent))}

/* ============ 习惯与配图 ============ */
.tips{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center}
.checklist{margin-top:26px;display:grid;gap:16px}
.checklist li{position:relative;padding-left:34px;color:var(--text-2);font-size:15px}
.checklist li::before{
  content:"";position:absolute;left:0;top:9px;width:16px;height:16px;border-radius:50%;
  border:1.5px solid var(--primary);box-shadow:0 0 12px rgba(60,230,192,.3);
}
.checklist li::after{
  content:"";position:absolute;left:5px;top:13px;width:6px;height:9px;
  border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(40deg);
}
.tips__note{
  margin-top:28px;padding:16px 20px;border-radius:var(--radius-sm);
  background:rgba(255,154,60,.08);border-left:3px solid var(--accent);
  color:var(--text-2);font-size:14px;
}
.tips__media{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-soft);
  background:var(--bg-2);box-shadow:var(--shadow);
}
.tips__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.tips__media figcaption{padding:14px 18px;font-size:13px;color:var(--text-3)}

/* ============ FAQ ============ */
.faq{max-width:880px;margin:0 auto;display:grid;gap:14px}
.faq__item{
  border-radius:var(--radius-sm);overflow:hidden;
  background:var(--glass);border:1px solid var(--line-soft);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transition:border-color .2s ease;
}
.faq__item.is-open{border-color:var(--line)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;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 auto;width:26px;height:26px;border-radius:50%;position:relative;
  border:1.5px solid var(--line);transition:border-color .2s ease,transform .24s ease;
}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq__icon::before{width:11px;height:1.6px}
.faq__icon::after{width:1.6px;height:11px;transition:opacity .2s ease}
.faq__item.is-open .faq__icon{border-color:var(--primary);transform:rotate(180deg)}
.faq__item.is-open .faq__icon::after{opacity:0}
.faq__a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq__a p{
  padding:0 24px 22px;color:var(--text-2);font-size:15px;
  border-left:3px solid var(--primary);margin-left:24px;padding-left:18px;
  border-radius:0;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:linear-gradient(120deg,rgba(60,230,192,.14) 0%,rgba(13,32,40,.9) 46%,rgba(255,154,60,.14) 100%);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,154,60,.28),transparent 68%);
}
.cta-band__text{position:relative;z-index:2;max-width:620px}
.cta-band h2{font-size:28px;margin-bottom:12px}
.cta-band p{color:var(--text-2);font-size:15px}
.cta-band__actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:0;padding:76px 0 28px;background:#03100f;
  border-top:1px solid var(--line-soft);position:relative;
}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer__brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:.02em}
.footer__brand .logo__mark{width:34px;height:34px}
.footer__text{margin-top:16px;color:var(--text-2);font-size:14px;max-width:340px}
.footer__title{font-size:14px;font-weight:700;color:var(--primary);letter-spacing:.06em;margin-bottom:18px}
.footer__list{display:grid;gap:11px}
.footer__list a,.footer__list span{font-size:14px;color:var(--text-2);transition:color .18s ease}
.footer__list a:hover{color:var(--primary)}
.footer__bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  :root{--sec-pad:84px}
  .hero h1{font-size:42px}
  .footer__grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
}
@media (max-width:992px){
  :root{--sec-pad:64px}
  .nav{display:none}
  .nav__cta{display:none}
  .nav__toggle{display:flex}
  .header__inner{gap:14px}
  .hero{padding:140px 0 60px}
  .hero h1{font-size:34px}
  .hero__sub{font-size:16px}
  .grid--3{grid-template-columns:1fr 1fr}
  .meter-grid{grid-template-columns:1fr 1fr}
  .tips{grid-template-columns:1fr;gap:34px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  :root{--sec-pad:52px}
  .container{padding:0 20px}
  .header__inner{padding:0 20px}
  h2{font-size:24px}
  .hero{padding:124px 0 52px}
  .hero h1{font-size:30px}
  .hero__stats li{padding:12px 16px}
  .hero__stats strong{font-size:22px}
  .grid--3{grid-template-columns:1fr}
  .timeline::before{left:12px}
  .tl-item{padding-left:60px}
  .tl-item__badge{width:38px;height:38px;font-size:14px;top:4px}
  .tl-card{grid-template-columns:1fr;padding:22px 20px;gap:18px}
  .tl-card:hover{transform:translateX(2px)}
  .tl-card__thumb{max-width:100%}
  .faq__a p{margin-left:18px;padding-left:14px;padding-right:20px}
  .footer__bottom{flex-direction:column;gap:8px}
}
@media (max-width:560px){
  .meter-grid{grid-template-columns:1fr}
  .hero__actions{gap:10px}
  .btn{height:42px;padding:0 18px;font-size:14px}
  .cta-band{padding:32px 22px}
  .cta-band h2{font-size:22px}
  .footer__grid{grid-template-columns:1fr;gap:30px}
  .section__head{margin-bottom:32px}
}
@media (max-width:420px){
  .hero h1{font-size:26px}
  .hero__stats{flex-direction:column;align-items:stretch}
  .hero__stats li{justify-content:flex-start}
  .logo{font-size:15px}
}

/* roulang page: category3 */
:root{
  --bg-0:#050c11;
  --bg-1:#0a161e;
  --bg-2:#10232c;
  --primary:#3ce6c0;
  --primary-deep:#17a98c;
  --accent:#ff9a3c;
  --text:#e9f6f4;
  --text-2:#9cb2b8;
  --text-3:#6a7f86;
  --line:rgba(60,230,192,.18);
  --line-strong:rgba(60,230,192,.42);
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --r-xl:26px;
  --r-lg:20px;
  --r-md:14px;
  --r-pill:999px;
  --shadow:0 18px 40px rgba(0,0,0,.45), 0 0 0 1px rgba(60,230,192,.06);
  --glow:0 0 26px rgba(60,230,192,.32);
  --glow-accent:0 0 26px rgba(255,154,60,.42);
  --ease:.18s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease),opacity var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.02em;line-height:1.28}
p{margin:0 0 14px}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
::selection{background:rgba(60,230,192,.28)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section__head{margin-bottom:36px;max-width:760px}
.section__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);margin-bottom:14px;
}
.section__eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7}
.section__title{font-size:32px;margin-bottom:12px}
.section__desc{color:var(--text-2);font-size:16px;max-width:680px}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(5,12,17,.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{
  background:rgba(5,12,17,.92);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.4);
}
.header__inner{
  display:flex;align-items:center;gap:28px;
  height:72px;transition:height var(--ease);
}
.site-header.is-scrolled .header__inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(60,230,192,.18),rgba(255,154,60,.12));
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14);
}
.logo__mark svg{width:20px;height:20px}
.logo__text{font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--text);white-space:nowrap}
.nav{display:flex;align-items:center;gap:26px;margin-left:14px}
.nav__link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);
  padding:6px 0;
}
.nav__link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
  border-radius:2px;
}
.nav__link:hover{color:var(--text)}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1)}
.nav__link.is-active{color:var(--primary);font-weight:700}
.header__cta{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  cursor:pointer;transition:background var(--ease),border-color var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle:hover{background:var(--glass-2);border-color:var(--line-strong)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;font-weight:700;font-size:15px;
  padding:13px 26px;border-radius:var(--r-pill);
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease),filter var(--ease);
}
.btn--sm{padding:10px 20px;font-size:14px}
.btn--primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  color:#04191a;
  box-shadow:var(--glow),0 10px 22px rgba(0,0,0,.35);
}
.btn--primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 34px rgba(60,230,192,.5),0 12px 26px rgba(0,0,0,.4)}
.btn--primary:active{transform:translateY(-1px)}
.btn--accent{
  background:linear-gradient(135deg,var(--accent) 0%,#ff7c2f 100%);
  color:#22120a;box-shadow:var(--glow-accent),0 10px 22px rgba(0,0,0,.35);
}
.btn--accent:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn--ghost{
  background:rgba(255,255,255,.04);
  color:var(--text);
  border:1px solid var(--line);
}
.btn--ghost:hover{background:rgba(60,230,192,.1);border-color:var(--line-strong);color:var(--primary)}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;filter:none}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;display:none;
  background:rgba(3,8,11,.72);backdrop-filter:blur(6px);
}
.drawer.is-open{display:block}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(340px,86vw);
  background:linear-gradient(180deg,var(--bg-1),var(--bg-0));
  border-left:1px solid var(--line);
  display:flex;flex-direction:column;padding:22px 22px 26px;
  animation:slideIn .24s ease;
}
@keyframes slideIn{from{transform:translateX(24px);opacity:.4}to{transform:translateX(0);opacity:1}}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer__close{
  width:38px;height:38px;border-radius:var(--r-md);
  background:var(--glass);border:1px solid var(--line);cursor:pointer;
  font-size:20px;line-height:1;color:var(--text-2);
}
.drawer__nav{display:flex;flex-direction:column;gap:6px;flex:1}
.drawer__nav a{
  padding:13px 14px;border-radius:var(--r-md);font-size:15px;color:var(--text-2);
  border:1px solid transparent;
}
.drawer__nav a:hover{background:var(--glass);color:var(--text)}
.drawer__nav a.is-active{color:var(--primary);border-color:var(--line);background:var(--glass)}
.drawer__cta{margin-top:16px;width:100%}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  padding:150px 0 78px;
  background-color:var(--bg-1);
  background-image:
    linear-gradient(115deg,rgba(5,12,17,.94) 0%,rgba(5,12,17,.78) 46%,rgba(5,12,17,.55) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:120px;
  background:linear-gradient(180deg,rgba(5,12,17,0),var(--bg-0));
  pointer-events:none;
}
.cat-hero__inner{position:relative;z-index:2;max-width:760px}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.current{color:var(--text-2)}
.cat-hero h1{font-size:48px;margin-bottom:16px}
.cat-hero h1 em{font-style:normal;color:var(--primary)}
.cat-hero__lead{font-size:17px;color:var(--text-2);max-width:640px;margin-bottom:12px}
.cat-hero__sub{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--accent);
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,154,60,.1);border:1px solid rgba(255,154,60,.28);
  margin-bottom:22px;
}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:8px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  font-size:13px;color:var(--text-2);
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--glass);border:1px solid var(--line);
}
.tag--accent{color:var(--accent);border-color:rgba(255,154,60,.3);background:rgba(255,154,60,.08)}

/* ---------- layout: toc + content ---------- */
.cat-layout{
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  gap:36px;
  align-items:start;
}
.toc{position:sticky;top:96px}
.toc__card{
  background:rgba(255,255,255,.055);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px 20px;
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.toc__card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(60,230,192,.6),rgba(255,154,60,.25),transparent);
}
.toc__title{font-size:14px;color:var(--primary);letter-spacing:.08em;margin-bottom:14px;font-weight:700}
.toc__list{display:flex;flex-direction:column;gap:4px}
.toc__list a{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--text-2);
  padding:9px 10px;border-radius:var(--r-md);
  border-left:2px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.toc__list a .num{font-size:12px;color:var(--text-3);font-weight:700;min-width:18px}
.toc__list a:hover{background:var(--glass);color:var(--text);transform:translateX(2px)}
.toc__list a.is-current{color:var(--primary);border-left-color:var(--primary);background:rgba(60,230,192,.08)}
.toc__note{
  margin-top:18px;padding-top:16px;border-top:1px dashed rgba(60,230,192,.22);
  font-size:13px;color:var(--text-3);line-height:1.7;
}
.toc__note strong{color:var(--text-2);font-weight:600}

.content-col{display:flex;flex-direction:column;gap:20px}
.longcard{
  display:grid;
  grid-template-columns:30% minmax(0,1fr);
  gap:22px;
  padding:20px;
  background:linear-gradient(140deg,rgba(255,255,255,.07),rgba(255,255,255,.025));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  scroll-margin-top:104px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.longcard:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:0 22px 46px rgba(0,0,0,.5),0 0 22px rgba(60,230,192,.14)}
.longcard__media{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  aspect-ratio:16/11;background:linear-gradient(135deg,rgba(60,230,192,.22),rgba(255,154,60,.16));
}
.longcard__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.longcard:hover .longcard__media img{transform:scale(1.04)}
.longcard__badge{
  position:absolute;left:10px;top:10px;
  font-size:12px;font-weight:700;color:#04191a;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  padding:4px 12px;border-radius:var(--r-pill);
}
.longcard__body h3{font-size:22px;margin-bottom:10px}
.longcard__body p{color:var(--text-2);font-size:15px;margin-bottom:12px}
.longcard__meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.chip{
  font-size:12px;color:var(--text-2);
  padding:4px 11px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
}
.chip--hot{color:var(--accent);border-color:rgba(255,154,60,.32);background:rgba(255,154,60,.08)}
.point-list{display:flex;flex-direction:column;gap:8px}
.point-list li{
  position:relative;padding-left:18px;font-size:14px;color:var(--text-2);
}
.point-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:7px;height:7px;border-radius:2px;transform:rotate(45deg);
  background:var(--primary);opacity:.8;
}

/* ---------- stats ---------- */
.stats{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{
  padding:26px 22px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease);
}
.stat:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.stat__num{
  font-family:"Barlow","DIN Alternate",system-ui,sans-serif;
  font-size:38px;font-weight:800;color:var(--primary);line-height:1.1;letter-spacing:.01em;
}
.stat__num i{font-style:normal;font-size:16px;color:var(--text-3);margin-left:4px;font-weight:600}
.stat__label{font-size:14px;color:var(--text-2);margin-top:8px}

/* ---------- faq ---------- */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq__item{
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq__item.is-open{border-color:var(--line-strong);background:rgba(60,230,192,.06)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:none;cursor:pointer;text-align:left;
  padding:20px 22px;font-size:17px;font-weight:700;color:var(--text);
  position:relative;
}
.faq__q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:var(--primary);opacity:0;transition:opacity var(--ease);
}
.faq__item.is-open .faq__q::before{opacity:1}
.faq__icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;
  transition:transform .24s ease,background var(--ease);
}
.faq__item.is-open .faq__icon{transform:rotate(45deg);background:rgba(60,230,192,.14)}
.faq__a{
  max-height:0;overflow:hidden;transition:max-height .24s ease;
}
.faq__a p{margin:0;padding:0 22px 20px 22px;font-size:15px;color:var(--text-2);line-height:1.8}

/* ---------- cta + form ---------- */
.cta{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  border:1px solid var(--line);
  background:
    linear-gradient(120deg,rgba(5,12,17,.92),rgba(10,22,30,.86)),
    url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  padding:46px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:40px;align-items:center;
  box-shadow:var(--shadow);
}
.cta h2{font-size:30px;margin-bottom:12px}
.cta p{color:var(--text-2);font-size:15px;margin-bottom:0;max-width:520px}
.form-grid{display:flex;flex-direction:column;gap:14px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:6px}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:var(--r-md);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  color:var(--text);font-size:15px;
  transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field input::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--primary);background:rgba(60,230,192,.07);
  box-shadow:0 0 0 4px rgba(60,230,192,.16);
}
.form-tip{font-size:13px;color:var(--text-3)}
.form-msg{font-size:13px;color:var(--primary);min-height:18px}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:64px 0 26px;
  margin-top:0;
}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:34px}
.footer__brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;margin-bottom:14px}
.footer__text{font-size:14px;color:var(--text-2);max-width:340px;line-height:1.8;margin:0}
.footer__title{font-size:14px;color:var(--primary);font-weight:700;margin-bottom:14px;letter-spacing:.04em}
.footer__list{display:flex;flex-direction:column;gap:10px}
.footer__list li{font-size:14px;color:var(--text-2)}
.footer__list a{color:var(--text-2)}
.footer__list a:hover{color:var(--primary)}
.footer__bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.07);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .cat-hero h1{font-size:42px}
  .cta{grid-template-columns:1fr;padding:38px}
}
@media (max-width:992px){
  .container{padding:0 24px}
  .nav,.header__cta .btn{display:none}
  .header__cta{margin-left:auto}
  .nav-toggle{display:flex}
  .cat-layout{grid-template-columns:1fr;gap:24px}
  .toc{position:static}
  .toc__list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;scroll-snap-type:x mandatory}
  .toc__list::-webkit-scrollbar{display:none}
  .toc__list a{
    white-space:nowrap;border-left:none;border:1px solid var(--line);
    border-radius:var(--r-pill);padding:8px 16px;scroll-snap-align:start;
  }
  .toc__list a.is-current{border-color:var(--primary)}
  .toc__list a .num{display:none}
  .toc__note{margin-top:14px}
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .section{padding:64px 0}
  .cat-hero{padding:130px 0 60px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .cat-hero h1{font-size:32px}
  .cat-hero__lead{font-size:16px}
  .section__title{font-size:26px}
  .longcard{grid-template-columns:1fr;gap:16px;padding:16px}
  .longcard__media{aspect-ratio:16/9}
  .longcard__body h3{font-size:19px}
  .cta{padding:28px 22px}
  .cta h2{font-size:24px}
  .footer__bottom{flex-direction:column;gap:6px}
}
@media (max-width:560px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .cat-hero{padding:118px 0 48px}
  .cat-hero h1{font-size:28px}
  .cat-hero__actions .btn{width:100%}
  .stats__grid{grid-template-columns:1fr}
  .stat__num{font-size:32px}
  .footer__grid{grid-template-columns:1fr}
  .faq__q{font-size:15px;padding:16px 16px}
  .faq__a p{padding:0 16px 16px 16px}
}
@media (max-width:420px){
  .logo__text{font-size:15px}
  .cat-hero h1{font-size:25px}
}

/* roulang page: category4 */
:root{
  --bg-0:#040d0e;
  --bg-1:#071617;
  --bg-2:#0a2124;
  --glass:rgba(255,255,255,.06);
  --glass-2:rgba(255,255,255,.09);
  --line:rgba(60,230,192,.18);
  --line-soft:rgba(255,255,255,.08);
  --primary:#3ce6c0;
  --primary-deep:#12a189;
  --accent:#ff9a3c;
  --text:#eaf7f4;
  --text-2:#9cbab7;
  --text-3:#6d8b89;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --r-pill:999px;
  --shadow-card:0 18px 40px -26px rgba(0,0,0,.95);
  --glow-primary:0 0 0 1px rgba(60,230,192,.32), 0 14px 34px -16px rgba(60,230,192,.5);
  --glow-accent:0 0 30px rgba(255,154,60,.32);
  --maxw:1280px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(60,230,192,.12), transparent 62%),
    radial-gradient(820px 520px at 92% 6%, rgba(255,154,60,.08), transparent 60%),
    var(--bg-0);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border:0}
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}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
::selection{background:rgba(60,230,192,.28)}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.section{padding:92px 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(7,22,23,.9),rgba(4,13,14,.2))}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:38px;flex-wrap:wrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;color:var(--primary);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--primary),transparent)}
h1{font-size:48px;line-height:1.2;font-weight:800;letter-spacing:.02em}
h2{font-size:32px;line-height:1.3;font-weight:800;letter-spacing:.02em}
h3{font-size:22px;line-height:1.4;font-weight:700}
.section__desc{color:var(--text-2);font-size:15px;max-width:640px;margin-top:12px}
.link-more{color:var(--primary);font-size:15px;display:inline-flex;align-items:center;gap:6px;transition:gap .18s var(--ease),opacity .18s}
.link-more:hover{gap:12px}
.rule-cloud{height:1px;width:100%;background:linear-gradient(90deg,transparent,rgba(60,230,192,.22),transparent)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(4,13,14,.74);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(4,13,14,.92);
  border-bottom-color:var(--line);
  box-shadow:0 14px 36px -26px #000;
}
.header__inner{display:flex;align-items:center;gap:26px;height:72px;transition:height .25s var(--ease)}
.site-header.is-scrolled .header__inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.02em;white-space:nowrap}
.logo__mark{
  width:36px;height:36px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(60,230,192,.22),rgba(255,154,60,.14));
  border:1px solid var(--line);box-shadow:0 0 18px -6px rgba(60,230,192,.5);
}
.logo__mark svg{width:22px;height:22px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav__link{
  position:relative;padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav__link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav__link:hover::after{transform:scaleX(1)}
.nav__link.is-active{color:#04110f;background:rgba(60,230,192,.16);font-weight:700}
.nav__link.is-active::after{transform:scaleX(0)}
.header__actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line-soft);
  background:rgba(255,255,255,.04);cursor:pointer;align-items:center;justify-content:center;
  transition:border-color .2s,background .2s;
}
.nav-toggle:hover{border-color:var(--primary);background:rgba(60,230,192,.08)}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .22s var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.site-header.is-open .nav-toggle span{background:transparent}
.site-header.is-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
.site-header.is-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
.nav-drawer-cta{display:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.02em;cursor:pointer;border:1px solid transparent;
  transition:transform .18s var(--ease),box-shadow .22s var(--ease),background .2s,border-color .2s,filter .2s;
  white-space:nowrap;
}
.btn--primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#031310;box-shadow:var(--glow-primary);
}
.btn--primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(60,230,192,.5),0 20px 42px -18px rgba(60,230,192,.65)}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{background:rgba(255,255,255,.03);border-color:var(--line-soft);color:var(--text)}
.btn--ghost:hover{background:rgba(60,230,192,.1);border-color:var(--primary);transform:translateY(-2px)}
.btn--accent{
  background:linear-gradient(135deg,#ffb063,var(--accent));
  color:#2a1402;box-shadow:var(--glow-accent);
}
.btn--accent:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn--lg{height:52px;padding:0 30px;font-size:16px}
.btn--sm{height:40px;padding:0 18px;font-size:14px}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:80px 0 64px}
.hero__bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.34;filter:saturate(1.15)}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(4,13,14,.68),rgba(4,13,14,.9) 62%,var(--bg-0));
}
.hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.pill{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(60,230,192,.1);border:1px solid var(--line);color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:.04em;
}
.hero h1{margin-top:20px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero__sub{margin-top:16px;font-size:18px;font-weight:600;color:var(--text)}
.hero__desc{margin-top:14px;color:var(--text-2);font-size:16px;max-width:600px}
.hero__actions{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.hero__stats{margin-top:38px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{
  padding:16px 18px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line-soft);
  transition:border-color .2s,transform .2s var(--ease);
}
.stat:hover{border-color:var(--line);transform:translateY(-3px)}
.stat b{display:block;font-size:24px;font-weight:800;color:var(--primary);line-height:1.2}
.stat span{font-size:13px;color:var(--text-3);display:block;margin-top:4px}

.hero__aside{
  border-radius:var(--r-lg);overflow:hidden;position:relative;
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.hero__aside-media{position:relative;aspect-ratio:16/11;overflow:hidden}
.hero__aside-media img{width:100%;height:100%;object-fit:cover;opacity:.9}
.hero__aside-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(4,13,14,.92))}
.hero__aside-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);font-size:13px;
  background:rgba(4,13,14,.7);border:1px solid var(--line);color:var(--primary);
}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);animation:pulse 1.8s infinite ease-in-out}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
.hero__aside-list{padding:18px 20px 20px;display:flex;flex-direction:column;gap:2px}
.hero__aside-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 12px;border-radius:12px;font-size:15px;color:var(--text-2);
  transition:background .18s,color .18s,transform .18s var(--ease);
}
.hero__aside-list a:hover{background:rgba(60,230,192,.08);color:var(--text);transform:translateX(3px)}
.hero__aside-list a i{font-style:normal;color:var(--primary);font-size:13px}

/* ============ 清单对照条卡 ============ */
.roster{display:flex;flex-direction:column;gap:12px}
.roster__item{
  display:grid;grid-template-columns:58px 1fr auto;gap:22px;align-items:center;
  padding:18px 24px;border-radius:var(--r-md);
  background:linear-gradient(120deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid var(--line-soft);
  transition:transform .18s var(--ease),border-color .2s,background .2s,box-shadow .22s;
}
.roster__item:hover{
  transform:translateX(4px);
  border-color:rgba(60,230,192,.55);
  background:linear-gradient(120deg,rgba(60,230,192,.1),rgba(255,255,255,.02));
  box-shadow:0 0 0 1px rgba(60,230,192,.16),0 18px 38px -28px rgba(60,230,192,.8);
}
.roster__icon{
  width:58px;height:58px;border-radius:16px;display:grid;place-items:center;
  background:rgba(60,230,192,.09);border:1px solid var(--line);color:var(--primary);
  transition:background .2s,color .2s;
}
.roster__item:hover .roster__icon{background:rgba(60,230,192,.16)}
.roster__icon svg{width:26px;height:26px}
.roster__title{font-size:18px;font-weight:700;line-height:1.45;transition:color .2s}
.roster__item:hover .roster__title{color:var(--primary)}
.roster__desc{font-size:14px;color:var(--text-2);margin-top:4px;display:block}
.roster__meta{display:flex;align-items:center;gap:18px}
.roster__num{
  font-size:30px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(60,230,192,.6);
  transition:color .2s,-webkit-text-stroke-color .2s;
}
.roster__item:hover .roster__num{color:var(--accent);-webkit-text-stroke-color:transparent}
.roster__arrow{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-soft);color:var(--text-2);font-size:15px;
  transition:background .2s,color .2s,border-color .2s,transform .2s var(--ease);
}
.roster__item:hover .roster__arrow{background:var(--primary);color:#04110f;border-color:var(--primary);transform:translateX(3px)}

/* ============ 分栏图文 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split__media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);position:relative;box-shadow:var(--shadow-card)}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split__media::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(60,230,192,.14),transparent 55%)}
.scene-list{display:flex;flex-direction:column;gap:14px;margin-top:26px}
.scene{
  display:flex;gap:14px;padding:16px 18px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line-soft);
  transition:border-color .2s,transform .2s var(--ease);
}
.scene:hover{border-color:var(--line);transform:translateY(-2px)}
.scene__no{
  flex:0 0 30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:rgba(255,154,60,.14);color:var(--accent);font-size:13px;font-weight:800;
}
.scene b{display:block;font-size:16px;font-weight:700}
.scene span{font-size:14px;color:var(--text-2)}

/* ============ 流程步骤 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:8px}
.flow__item{
  position:relative;padding:26px 22px;border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  border:1px solid var(--line-soft);
  transition:border-color .22s,transform .22s var(--ease),box-shadow .22s;
}
.flow__item:hover{border-color:var(--line);transform:translateY(-4px);box-shadow:var(--shadow-card)}
.flow__idx{
  font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--primary);
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
}
.flow__idx::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,rgba(60,230,192,.5),transparent);width:34px}
.flow__item h3{font-size:18px;margin-bottom:8px}
.flow__item p{font-size:14px;color:var(--text-2)}
.flow__bar{margin-top:18px;height:4px;border-radius:4px;background:rgba(255,255,255,.07);overflow:hidden}
.flow__bar i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--primary),rgba(255,154,60,.85))}

/* ============ 数据条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  border-radius:var(--r-lg);overflow:hidden;
  background:var(--line-soft);border:1px solid var(--line-soft);
}
.metric{background:rgba(7,22,23,.9);padding:28px 24px;transition:background .22s}
.metric:hover{background:rgba(60,230,192,.07)}
.metric b{display:block;font-size:34px;font-weight:800;color:var(--primary);line-height:1.1}
.metric b small{font-size:16px;font-weight:700;color:var(--text-2);margin-left:4px}
.metric span{display:block;margin-top:6px;font-size:14px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq__item{
  border-radius:var(--r-md);border:1px solid var(--line-soft);
  background:var(--glass);overflow:hidden;
  transition:border-color .22s,background .22s;
}
.faq__item+.faq__item{margin-top:0}
.faq__item[open]{border-color:rgba(60,230,192,.5);background:rgba(60,230,192,.055)}
.faq__q{
  display:flex;align-items:center;gap:16px;cursor:pointer;
  padding:20px 24px;font-size:17px;font-weight:700;list-style:none;
}
.faq__q::-webkit-details-marker{display:none}
.faq__q::before{
  content:"";flex:0 0 4px;height:22px;border-radius:4px;background:rgba(255,255,255,.14);
  transition:background .22s,box-shadow .22s;
}
.faq__item[open] .faq__q::before{background:var(--primary);box-shadow:0 0 14px rgba(60,230,192,.7)}
.faq__sign{
  margin-left:auto;flex:0 0 26px;height:26px;border-radius:50%;position:relative;
  border:1px solid var(--line-soft);transition:transform .24s var(--ease),border-color .22s;
}
.faq__sign::before,.faq__sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--text-2);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq__sign::before{width:11px;height:1.6px}
.faq__sign::after{width:1.6px;height:11px;transition:opacity .22s}
.faq__item[open] .faq__sign{transform:rotate(180deg);border-color:var(--primary)}
.faq__item[open] .faq__sign::after{opacity:0}
.faq__a{padding:0 24px 22px 44px;font-size:15px;color:var(--text-2);line-height:1.85}
.faq__a strong{color:var(--text);font-weight:700}

/* ============ CTA ============ */
.cta-band{
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:
    radial-gradient(700px 240px at 12% 20%,rgba(60,230,192,.18),transparent 62%),
    radial-gradient(520px 220px at 88% 90%,rgba(255,154,60,.14),transparent 66%),
    rgba(7,22,23,.94);
  padding:46px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:28px}
.cta-band p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:620px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}
.tagrow{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid var(--line-soft);
  transition:color .2s,border-color .2s,background .2s;
}
.tag:hover{color:var(--primary);border-color:var(--line);background:rgba(60,230,192,.08)}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;background:linear-gradient(180deg,rgba(6,19,20,.7),rgba(3,10,11,.98));
  border-top:1px solid var(--line);padding:64px 0 26px;
}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer__brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--text)}
.footer__text{margin-top:16px;font-size:14px;color:var(--text-2);max-width:360px;line-height:1.85}
.footer__title{font-size:14px;font-weight:700;color:var(--primary);margin-bottom:16px;letter-spacing:.04em}
.footer__list li{margin-bottom:11px}
.footer__list a,.footer__list span{font-size:14px;color:var(--text-2);transition:color .18s,transform .18s var(--ease)}
.footer__list a{display:inline-block}
.footer__list a:hover{color:var(--primary);transform:translateX(3px)}
.footer__bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero__inner{gap:38px}
  .roster__item{grid-template-columns:54px 1fr auto;gap:18px;padding:16px 20px}
  .footer__grid{grid-template-columns:1.4fr 1fr 1fr;gap:34px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  h1{font-size:38px}
  h2{font-size:27px}
  .section{padding:72px 0}
  .hero{padding:56px 0 48px}
  .hero__inner{grid-template-columns:1fr;gap:34px}
  .hero__aside{max-width:560px}
  .split{grid-template-columns:1fr;gap:30px}
  .flow{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .nav{
    position:fixed;top:72px;right:0;bottom:0;width:min(320px,86vw);
    display:flex;flex-direction:column;align-items:stretch;gap:6px;
    padding:22px 20px 26px;margin:0;
    background:rgba(5,17,18,.98);backdrop-filter:blur(20px);
    border-left:1px solid var(--line);
    transform:translateX(105%);transition:transform .3s var(--ease);
    overflow-y:auto;z-index:79;
  }
  .site-header.is-open .nav{transform:translateX(0)}
  .nav__link{padding:14px 14px;border-radius:14px;background:rgba(255,255,255,.035);font-size:15px}
  .nav__link::after{display:none}
  .nav-toggle{display:inline-flex}
  .header__cta{display:none}
  .nav-drawer-cta{display:flex;margin-top:14px}
  .header__actions{margin-left:auto}
  .footer__grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  body{font-size:15px}
  h1{font-size:30px}
  h2{font-size:24px}
  h3{font-size:18px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .hero{padding:44px 0 40px}
  .hero__sub{font-size:16px}
  .hero__stats{grid-template-columns:repeat(2,1fr)}
  .hero__actions .btn{flex:1 1 auto}
  .section__head{align-items:flex-start;margin-bottom:26px}
  .cta-band{padding:32px 24px;border-radius:var(--r-md)}
  .cta-band h2{font-size:23px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{flex:1 1 auto}
  .metric b{font-size:27px}
  .faq__q{font-size:16px;padding:17px 18px;gap:12px}
  .faq__a{padding:0 18px 20px 34px}
  .site-footer{padding:48px 0 22px}
  .footer__bottom{flex-direction:column;gap:8px}
}
@media (max-width:560px){
  .roster__item{
    grid-template-columns:46px 1fr;gap:14px 16px;padding:16px;
  }
  .roster__icon{width:46px;height:46px;border-radius:13px}
  .roster__icon svg{width:22px;height:22px}
  .roster__meta{grid-column:2;justify-content:flex-start;gap:14px;margin-top:2px}
  .roster__num{font-size:24px}
  .roster__title{font-size:16px}
  .flow{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr}
  .split__media img{aspect-ratio:16/10}
  .hero__stats{grid-template-columns:1fr 1fr;gap:10px}
  .footer__grid{grid-template-columns:1fr}
  .site-footer{margin-top:24px}
}
@media (max-width:420px){
  .btn{padding:0 18px;font-size:14px}
  .hero__actions{flex-direction:column;align-items:stretch}
  .hero__actions .btn{width:100%}
}