/* roulang page: index */
:root{
  --bg-0:#08070E;--bg-1:#0F0D18;--bg-2:#151222;--bg-3:#1C1830;
  --line:rgba(255,255,255,.08);--line-strong:rgba(255,255,255,.16);
  --text-1:#F2F0FA;--text-2:#A9A4C2;--text-3:#6E6889;
  --brand:#39E6A8;--brand-ink:#06140E;--brand-dim:rgba(57,230,168,.12);
  --accent:#7B5CFF;--hot:#FF4E9B;--danger:#FF5C6C;
  --container:1200px;--read:780px;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:24px;--r-pill:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-brand:0 0 24px rgba(57,230,168,.18);
  --shadow-btn:0 8px 20px rgba(57,230,168,.28);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:48px;--sp-6:64px;--sp-7:96px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--text-1);font-family:var(--font);
  font-size:17px;line-height:1.9;letter-spacing:.01em;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s ease}
a:hover{color:var(--brand)}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit;font-size:15px}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:.01em}
p{margin:0}
time{font-variant-numeric:tabular-nums}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;box-shadow:0 0 0 3px rgba(57,230,168,.20);border-radius:4px}
::selection{background:rgba(57,230,168,.28);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sp-7) 0;position:relative}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--deep{background:var(--bg-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:var(--sp-4)}
.section-title{font-size:28px;padding-left:16px;position:relative}
.section-title::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:20px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(57,230,168,.6)
}
.section-sub{color:var(--text-2);font-size:15px;margin-top:10px;padding-left:16px;max-width:620px}
.link-more{font-size:14px;color:var(--brand);white-space:nowrap;padding-bottom:4px;border-bottom:1px solid rgba(57,230,168,.35)}
.link-more:hover{border-bottom-color:var(--brand)}
.divider{height:1px;border:0;background:linear-gradient(90deg,transparent,rgba(57,230,168,.4),transparent);margin:0}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(15,13,24,.86);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);transition:height .25s ease,background .25s ease
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,230,168,.55),rgba(123,92,255,.45),transparent);opacity:.75
}
.header__inner{display:flex;align-items:center;gap:24px;height:68px;transition:height .25s ease}
.site-header.is-shrink{background:rgba(8,7,14,.95)}
.site-header.is-shrink .header__inner{height:60px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo__mark{width:30px;height:30px;flex-shrink:0}
.logo__mark svg{width:100%;height:100%;display:block}
.logo__text{font-size:15px;font-weight:800;letter-spacing:.02em;color:var(--text-1)}
.logo__text em{font-style:normal;color:var(--brand)}
.logo__dot{color:var(--accent);padding:0 1px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav__link{
  position:relative;padding:10px 12px;font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:var(--r-sm)
}
.nav__link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav__link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(57,230,168,.5)}
.nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)
}
.header__cta{margin-left:16px}
.burger{display:none;width:44px;height:44px;margin-left:auto;border-radius:var(--r-sm);position:relative}
.burger span{
  position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--text-1);
  transition:transform .25s ease,opacity .2s ease
}
.burger span:nth-child(1){top:15px}
.burger span:nth-child(2){top:21px}
.burger span:nth-child(3){top:27px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer-mask{position:fixed;inset:0;background:rgba(4,3,9,.66);z-index:80;opacity:0;pointer-events:none;transition:opacity .25s ease}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:90;
  background:var(--bg-2);border-left:1px solid var(--line-strong);
  transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:24px 20px
}
.drawer.is-open{transform:translateX(0)}
.drawer__title{font-size:13px;color:var(--text-3);letter-spacing:.16em;margin-bottom:16px}
.drawer__link{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:var(--r-sm);
  color:var(--text-2);font-size:16px;font-weight:500
}
.drawer__link:hover{background:rgba(255,255,255,.05);color:var(--text-1)}
.drawer__link.is-active{color:var(--brand);background:var(--brand-dim)}
.drawer__foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);font-size:15px;font-weight:700;
  border:1px solid transparent;transition:all .22s ease;white-space:nowrap
}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--primary{background:var(--brand);color:var(--brand-ink)}
.btn--primary:hover{background:#4df0b4;color:var(--brand-ink);transform:translateY(-1px);box-shadow:var(--shadow-btn)}
.btn--ghost{border-color:rgba(57,230,168,.55);color:var(--brand);background:transparent}
.btn--ghost:hover{background:rgba(57,230,168,.10);color:var(--brand);transform:translateY(-1px)}
.btn--line{border-color:var(--line-strong);color:var(--text-1)}
.btn--line:hover{border-color:var(--brand);color:var(--brand);background:rgba(57,230,168,.06)}
.btn:active{transform:translateY(0) scale(.99)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- 徽章 / 标签 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.02);
  transition:border-color .22s ease,color .22s ease
}
.pill:hover{border-color:var(--brand);color:var(--brand)}
.pill--brand{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.pill--accent{border-color:rgba(123,92,255,.55);color:#C4B6FF;background:rgba(123,92,255,.12)}
.pill--hot{background:var(--hot);border-color:var(--hot);color:#2A0316}
.pill--glass{background:rgba(8,7,14,.72);border-color:rgba(57,230,168,.4);color:var(--brand)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:88px 0 72px;
  background:
    radial-gradient(760px 420px at 12% 8%,rgba(57,230,168,.10),transparent 62%),
    radial-gradient(700px 460px at 88% 20%,rgba(123,92,255,.12),transparent 64%),
    var(--bg-0);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 0,transparent 72%);
          mask-image:radial-gradient(circle at 30% 20%,#000 0,transparent 72%);
}
.hero__inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero__badge{margin-bottom:20px}
.hero h1{font-size:clamp(32px,4vw,52px);line-height:1.2;font-weight:800;letter-spacing:.005em}
.hero h1 em{font-style:normal;color:var(--brand);text-shadow:0 0 26px rgba(57,230,168,.35)}
.hero__lead{margin-top:20px;font-size:17px;color:var(--text-2);max-width:520px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px;
  padding-top:28px;border-top:1px solid var(--line)
}
.stat__num{font-size:28px;font-weight:800;color:var(--brand);line-height:1.1}
.stat__num small{font-size:13px;font-weight:600;color:var(--text-2);margin-left:4px}
.stat__label{font-size:13px;color:var(--text-3);margin-top:6px}
.hero__media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(135deg,var(--bg-3),var(--bg-2));box-shadow:var(--shadow-card);aspect-ratio:4/3
}
.hero__media img{width:100%;height:100%;object-fit:cover;opacity:.92}
.hero__media::after{
  content:"";position:absolute;inset:auto -40px -60px auto;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,230,168,.34),transparent 68%);pointer-events:none
}
.hero__corner{position:absolute;width:54px;height:54px;border:2px solid rgba(57,230,168,.7);pointer-events:none}
.hero__corner--tl{top:16px;left:16px;border-right:0;border-bottom:0;border-radius:10px 0 0 0}
.hero__corner--br{bottom:16px;right:16px;border-left:0;border-top:0;border-radius:0 0 10px 0;border-color:rgba(123,92,255,.7)}
.hero__media-tag{position:absolute;left:20px;bottom:20px;z-index:2}

/* ---------- 能力卡 ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{
  position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease
}
.card:hover{transform:translateY(-2px);border-color:rgba(57,230,168,.45);box-shadow:var(--shadow-card),var(--shadow-brand)}
.card__dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(57,230,168,.8);margin-bottom:16px}
.card h3{font-size:19px;margin-bottom:10px}
.card p{font-size:15px;line-height:1.85;color:var(--text-2)}
.card__list{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.card__list li{font-size:14px;color:var(--text-2);padding-left:16px;position:relative}
.card__list li::before{content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:2px;background:rgba(57,230,168,.7)}

/* ---------- 会员对比 ---------- */
.compare{margin-top:8px;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--bg-1)}
.compare__row{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;align-items:center;min-height:56px;border-bottom:1px solid var(--line)}
.compare__row:last-child{border-bottom:0}
.compare__row--head{min-height:112px;background:rgba(255,255,255,.02)}
.compare__cell{padding:16px 20px;font-size:15px;color:var(--text-2)}
.compare__cell--label{color:var(--text-1);font-weight:600}
.compare__cell--center{text-align:center}
.compare__plan{display:flex;flex-direction:column;align-items:center;gap:8px;position:relative;padding-top:8px}
.compare__plan-name{font-size:16px;font-weight:700;color:var(--text-1)}
.compare__price{font-size:32px;font-weight:800;color:var(--text-1);line-height:1}
.compare__price small{font-size:13px;font-weight:500;color:var(--text-3);margin-left:4px}
.compare__col--feature{position:relative;background:rgba(57,230,168,.06);transform:translateY(-4px);border-radius:8px 8px 0 0}
.compare__col--feature::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent))
}
.mark-yes{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:var(--brand-dim);color:var(--brand);font-size:13px;font-weight:800}
.mark-no{color:var(--text-3);font-size:16px}
.compare__note{margin-top:20px;font-size:14px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:20px}

/* ---------- 等级亮点 ---------- */
.level-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.level-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;
  position:relative;overflow:hidden;transition:transform .24s ease,border-color .24s ease
}
.level-card:hover{transform:translateY(-3px);border-color:rgba(57,230,168,.4)}
.level-card--lg{grid-column:span 7}
.level-card--sm{grid-column:span 5}
.level-card__no{
  position:absolute;right:18px;top:4px;font-size:48px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.14);letter-spacing:-.04em
}
.level-card h3{font-size:20px;margin-bottom:6px}
.level-card__meta{font-size:13px;color:var(--brand);margin-bottom:14px}
.level-card ul{display:flex;flex-direction:column;gap:8px;margin-bottom:22px}
.level-card li{font-size:14px;color:var(--text-2);padding-left:16px;position:relative}
.level-card li::before{content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:50%;background:rgba(123,92,255,.8)}
.progress{height:6px;border-radius:99px;background:var(--bg-3);overflow:hidden}
.progress__bar{height:100%;border-radius:99px;background:linear-gradient(90deg,var(--brand),var(--accent));transition:width .6s ease}
.progress__label{display:flex;justify-content:space-between;font-size:12px;color:var(--text-3);margin-top:8px}

/* ---------- 内容预览 ---------- */
.content-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cover-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease
}
.cover-card:hover{transform:translateY(-2px);border-color:rgba(57,230,168,.45);box-shadow:var(--shadow-card),var(--shadow-brand)}
.cover-card--wide{grid-column:span 2}
.cover-card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,var(--bg-3),var(--bg-2))}
.cover-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.cover-card:hover .cover-card__media img{transform:scale(1.04)}
.cover-card__tag{position:absolute;left:12px;bottom:12px}
.cover-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.cover-card__body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cover-card__meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.cover-card__meta i{width:4px;height:4px;border-radius:50%;background:var(--text-3);display:inline-block}

/* ---------- 最新信息 ---------- */
.news-layout{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.news-lead{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;display:block
}
.news-lead:hover{transform:translateY(-2px);border-color:rgba(57,230,168,.45);box-shadow:var(--shadow-card),var(--shadow-brand);color:inherit}
.news-lead__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,var(--bg-3),var(--bg-2))}
.news-lead__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-lead:hover .news-lead__media img{transform:scale(1.04)}
.news-lead__tag{position:absolute;left:12px;bottom:12px}
.news-lead__body{padding:20px 22px 24px}
.news-lead__body h3{font-size:20px;line-height:1.45;margin-bottom:10px}
.news-lead__body p{
  font-size:15px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden
}
.news-lead__time{margin-top:14px;font-size:13px;color:var(--text-3)}
.news-list{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-2);overflow:hidden}
.news-item{display:flex;align-items:center;gap:16px;min-height:56px;padding:12px 20px;border-bottom:1px solid var(--line);transition:padding-left .22s ease,background .22s ease}
.news-item:last-child{border-bottom:0}
.news-item:hover{background:rgba(255,255,255,.02);padding-left:24px}
.news-item:hover .news-item__title{color:var(--brand)}
.news-item__title{font-size:15px;color:var(--text-1);line-height:1.5;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item__time{font-size:13px;color:var(--text-3);white-space:nowrap}
.empty-state{
  min-height:160px;border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  color:var(--text-3);font-size:14px;padding:24px;text-align:center;background:var(--bg-1)
}
.empty-state svg{width:40px;height:40px;stroke:var(--text-3);fill:none;stroke-width:1.4}
.skeleton{height:56px;border-radius:var(--r-sm);background:linear-gradient(90deg,var(--bg-3),var(--bg-2),var(--bg-3));background-size:200% 100%;animation:flow 1.4s linear infinite;margin:10px}
@keyframes flow{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq__item{border-bottom:1px solid var(--line)}
.faq__item:first-child{border-top:1px solid var(--line)}
.faq__btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 16px;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
  transition:background .22s ease,color .22s ease
}
.faq__btn:hover{color:var(--brand);background:rgba(255,255,255,.02)}
.faq__icon{
  flex-shrink:0;width:24px;height:24px;position:relative;border-radius:50%;
  border:1px solid var(--line-strong);transition:transform .28s ease,border-color .22s ease
}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;left:6px;right:6px;top:11px;height:1.5px;background:var(--text-2);border-radius:2px}
.faq__icon::after{transform:rotate(90deg)}
.faq__btn[aria-expanded="true"] .faq__icon{transform:rotate(45deg);border-color:var(--brand)}
.faq__btn[aria-expanded="true"] .faq__icon::before,
.faq__btn[aria-expanded="true"] .faq__icon::after{background:var(--brand)}
.faq__panel{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq__panel-inner{
  padding:0 16px 22px 16px;font-size:15px;line-height:1.85;color:var(--text-2);
  border-left:2px solid transparent
}
.faq__item.is-open .faq__panel-inner{border-left-color:var(--brand);background:rgba(57,230,168,.04);border-radius:0 var(--r-sm) var(--r-sm) 0}

/* ---------- CTA ---------- */
.cta{
  position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-2);padding:44px
}
.cta__bg{
  position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;opacity:.16
}
.cta::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(120deg,rgba(57,230,168,.16),transparent 42%,rgba(123,92,255,.20))
}
.cta__inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.cta h2{font-size:clamp(26px,3vw,34px);line-height:1.25}
.cta p{margin-top:14px;font-size:16px;color:var(--text-2);max-width:460px}
.cta__form{display:flex;gap:12px}
.field{flex:1;min-width:0}
.input{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-sm);
  background:var(--bg-3);border:1px solid var(--line);color:var(--text-1);transition:border-color .2s ease,box-shadow .2s ease
}
.input::placeholder{color:var(--text-3)}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(57,230,168,.15)}
.cta__tip{margin-top:14px;font-size:12px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,230,168,.55),transparent)
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-2);max-width:320px;line-height:1.85}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text-1)}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand)}
.footer-qr{
  width:104px;height:104px;border-radius:var(--r-md);border:1px dashed var(--line-strong);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:var(--text-3);line-height:1.6;margin-top:16px;background:var(--bg-2)
}
.footer-contact{font-size:14px;color:var(--text-2);line-height:2}
.footer-contact b{color:var(--text-1);font-weight:600}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0;text-align:center;
  font-size:12px;color:var(--text-3)
}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .content-grid{grid-template-columns:repeat(3,1fr)}
  .cover-card--wide{grid-column:span 2}
}
@media (max-width:1024px){
  .nav,.header__cta{display:none}
  .burger{display:block}
  .hero{padding:64px 0 56px}
  .hero__inner{grid-template-columns:1fr;gap:40px}
  .hero__media{order:2}
  .section{padding:72px 0}
  .level-card--lg,.level-card--sm{grid-column:span 6}
  .news-layout{grid-template-columns:1fr;gap:24px}
  .cta__inner{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-title{font-size:24px}
  .hero__stats{grid-template-columns:repeat(2,1fr);gap:18px}
  .grid-4{grid-template-columns:1fr}
  .content-grid{grid-template-columns:repeat(2,1fr)}
  .level-grid{grid-template-columns:repeat(6,1fr)}
  .level-card--lg,.level-card--sm{grid-column:span 6}
  .compare{border:0;background:transparent;display:flex;flex-direction:column;gap:20px}
  .compare__row{display:none}
  .compare__row--head{display:none}
  .compare-mobile{display:grid;gap:20px}
  .cta{padding:28px 22px}
  .cta__form{flex-direction:column}
  .cta__form .btn{width:100%}
  .compare__note{flex-direction:column;gap:8px}
}
@media (max-width:560px){
  .hero{padding:48px 0 40px}
  .hero h1{font-size:30px}
  .content-grid{grid-template-columns:1fr}
  .cover-card--wide{grid-column:span 1}
  .footer-grid{grid-template-columns:1fr}
  .news-item{flex-direction:column;align-items:flex-start;gap:6px;padding:14px 18px}
  .compare__note{font-size:13px}
}
.compare-mobile{display:none}
@media (max-width:768px){
  .compare-mobile{display:grid;gap:20px}
}

/* roulang page: article */
:root{
  --bg-0:#08070E; --bg-1:#0F0D18; --bg-2:#151222; --bg-3:#1C1830;
  --line:rgba(255,255,255,.08); --line-strong:rgba(255,255,255,.16);
  --text-1:#F2F0FA; --text-2:#A9A4C2; --text-3:#6E6889;
  --brand:#39E6A8; --brand-ink:#06140E; --brand-dim:rgba(57,230,168,.12);
  --accent:#7B5CFF; --hot:#FF4E9B; --err:#FF5C6C;
  --container:1200px; --read:780px; --side:300px;
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:24px; --r-pill:999px;
  --s1:8px; --s2:16px; --s3:24px; --s4:32px; --s5:48px; --s6:64px; --s7:96px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 0 24px rgba(57,230,168,.18);
  --ease:.25s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0; background:var(--bg-0); color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px; line-height:1.9; letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%; display:block; border:0;}
a{color:inherit; text-decoration:none; transition:color var(--ease),border-color var(--ease),background var(--ease);}
button,input{font:inherit; color:inherit;}
ul,ol{margin:0; padding:0; list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.35; font-weight:800;}
time,.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--brand); outline-offset:2px; box-shadow:0 0 0 3px rgba(57,230,168,.20);}
::selection{background:rgba(57,230,168,.28); color:#fff;}
.container{width:100%; max-width:var(--container); margin:0 auto; padding:0 24px;}
.section{padding:84px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--bg-1);}
.divider-line{height:1px; border:0; margin:0; background:linear-gradient(90deg,transparent,rgba(57,230,168,.4),transparent);}
.sec-head{display:flex; align-items:flex-end; justify-content:space-between; gap:24px; margin-bottom:36px; flex-wrap:wrap;}
.sec-title{position:relative; padding-left:16px; font-size:28px; letter-spacing:.01em;}
.sec-title::before{content:""; position:absolute; left:0; top:.28em; width:4px; height:20px; border-radius:2px; background:var(--brand); box-shadow:0 0 12px rgba(57,230,168,.6);}
.sec-sub{margin-top:10px; color:var(--text-2); font-size:15px;}
.link-more{color:var(--brand); font-size:14px; font-weight:600; border-bottom:1px solid rgba(57,230,168,.35); padding-bottom:2px;}
.link-more:hover{color:#fff; border-color:#fff;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky; top:0; z-index:60;
  background:rgba(15,13,24,.86); backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:height var(--ease),background var(--ease);
}
.site-header::after{content:""; display:block; height:1px; background:linear-gradient(90deg,transparent,rgba(57,230,168,.55),rgba(123,92,255,.45),transparent);}
.site-header.is-scrolled{background:rgba(8,7,14,.95);}
.header-inner{display:flex; align-items:center; gap:28px; height:68px; transition:height var(--ease);}
.site-header.is-scrolled .header-inner{height:60px;}
.logo{display:flex; align-items:center; gap:10px; flex:0 0 auto;}
.logo__mark{width:30px; height:30px; display:grid; place-items:center;}
.logo__mark svg{width:30px; height:30px;}
.logo__text{font-size:17px; font-weight:800; letter-spacing:.02em; white-space:nowrap;}
.logo__text em{color:var(--brand); font-style:normal; margin:0 2px;}
.nav{display:flex; align-items:center; gap:4px; margin-left:auto; flex-wrap:nowrap;}
.nav__link{
  position:relative; padding:10px 12px; font-size:15px; font-weight:500; color:var(--text-2);
  border-radius:var(--r-sm); white-space:nowrap;
}
.nav__link::after{content:""; position:absolute; left:12px; right:12px; bottom:2px; height:2px; border-radius:2px; background:var(--brand); transform:scaleX(0); transform-origin:left; transition:transform var(--ease);}
.nav__link:hover{color:var(--text-1); background:rgba(255,255,255,.04);}
.nav__link.is-active{color:var(--brand); text-shadow:0 0 12px rgba(57,230,168,.5);}
.nav__link.is-active::after{transform:scaleX(1);}
.header-cta{margin-left:16px;}
.burger{
  display:none; width:44px; height:44px; margin-left:auto; border:1px solid var(--line-strong);
  border-radius:var(--r-sm); background:transparent; cursor:pointer; position:relative;
}
.burger span{position:absolute; left:12px; right:12px; height:2px; background:var(--text-1); border-radius:2px; transition:transform var(--ease),opacity var(--ease);}
.burger span:nth-child(1){top:15px;}
.burger span:nth-child(2){top:21px;}
.burger span:nth-child(3){top:27px;}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.drawer-mask{position:fixed; inset:0; background:rgba(4,3,8,.66); opacity:0; visibility:hidden; transition:opacity var(--ease),visibility var(--ease); z-index:70;}
.drawer-mask.is-open{opacity:1; visibility:visible;}
.drawer{
  position:fixed; top:0; right:0; height:100%; width:82vw; max-width:360px; z-index:80;
  background:var(--bg-2); border-left:1px solid var(--line);
  transform:translateX(102%); transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex; flex-direction:column; padding:24px 20px; overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer__head{display:flex; align-items:center; justify-content:space-between; margin-bottom:20px;}
.drawer__close{width:40px; height:40px; border:1px solid var(--line-strong); background:transparent; border-radius:var(--r-sm); cursor:pointer; font-size:18px; line-height:1; color:var(--text-2);}
.drawer__close:hover{color:var(--brand); border-color:var(--brand);}
.drawer__nav{display:flex; flex-direction:column; gap:6px;}
.drawer__nav a{min-height:44px; display:flex; align-items:center; padding:0 14px; border-radius:var(--r-sm); color:var(--text-2); font-size:16px; border:1px solid transparent;}
.drawer__nav a:hover{background:rgba(255,255,255,.05); color:var(--text-1);}
.drawer__nav a.is-active{color:var(--brand); border-color:rgba(57,230,168,.35); background:var(--brand-dim);}
.drawer__foot{margin-top:auto; padding-top:24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 22px; border-radius:var(--r-md); border:1px solid transparent;
  font-size:15px; font-weight:700; cursor:pointer; white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.btn--primary{background:var(--brand); color:var(--brand-ink);}
.btn--primary:hover{filter:brightness(1.06); transform:translateY(-1px); box-shadow:0 8px 20px rgba(57,230,168,.28);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{border-color:var(--line-strong); color:var(--text-1); background:transparent;}
.btn--ghost:hover{border-color:var(--brand); color:var(--brand);}
.btn--outline{border-color:var(--brand); color:var(--brand); background:transparent;}
.btn--outline:hover{background:rgba(57,230,168,.10);}
.btn--sm{height:40px; padding:0 16px; font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45; pointer-events:none;}
.btn-row{display:flex; gap:12px; flex-wrap:wrap;}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex; align-items:center; height:26px; padding:0 12px; border-radius:var(--r-pill);
  font-size:12px; color:var(--text-2); border:1px solid var(--line); background:rgba(255,255,255,.02);
  transition:color var(--ease),border-color var(--ease); white-space:nowrap;
}
.tag:hover{color:var(--brand); border-color:rgba(57,230,168,.5);}
.tag--brand{background:var(--brand); color:var(--brand-ink); border-color:transparent; font-weight:700;}
.tag--hot{background:var(--hot); color:#fff; border-color:transparent; font-weight:700;}
.tag-row{display:flex; flex-wrap:wrap; gap:8px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:24px 0 0;}
.breadcrumb ol{display:flex; align-items:center; gap:8px; font-size:14px; color:var(--text-3); flex-wrap:nowrap; overflow:hidden;}
.breadcrumb li{display:flex; align-items:center; gap:8px; min-width:0;}
.breadcrumb li+li::before{content:"/"; color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .crumb-current{color:var(--text-2); max-width:46vw; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-hero{padding:28px 0 8px; position:relative;}
.article-hero::before{
  content:""; position:absolute; left:-10%; top:-160px; width:520px; height:420px; pointer-events:none;
  background:radial-gradient(circle,rgba(57,230,168,.10),transparent 68%);
}
.article-hero__inner{position:relative; max-width:var(--read); margin:0 auto;}
.article-title{font-size:32px; line-height:1.35; letter-spacing:.01em;}
.article-meta{display:flex; align-items:center; gap:12px; flex-wrap:wrap; margin-top:18px; font-size:13px; color:var(--text-3);}
.article-meta .sep{width:1px; height:12px; background:var(--line-strong);}
.article-lead{margin-top:18px; color:var(--text-2); font-size:16px; padding-left:14px; border-left:2px solid rgba(57,230,168,.5);}
.article-cover{margin-top:28px; border-radius:var(--r-lg); overflow:hidden; border:1px solid var(--line); aspect-ratio:16/9; background:linear-gradient(135deg,var(--bg-3),var(--bg-2));}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid; grid-template-columns:minmax(0,1fr); gap:48px;
  align-items:start; padding:32px 0 96px;
}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,var(--read)) var(--side); justify-content:center;}
}
.article-body{max-width:var(--read); width:100%; margin:0 auto; color:#DCD8EC; font-size:17px; line-height:1.9;}
.article-body p{margin:0 0 1.15em;}
.article-body h2{position:relative; margin:2.2em 0 .8em; padding-left:16px; font-size:24px; color:var(--text-1);}
.article-body h2::before{content:""; position:absolute; left:0; top:.32em; width:4px; height:18px; border-radius:2px; background:var(--brand);}
.article-body h3{margin:2em 0 .7em; font-size:20px; color:var(--text-1);}
.article-body ul,.article-body ol{margin:0 0 1.15em; padding-left:1.3em;}
.article-body ul li{list-style:none; position:relative; padding-left:6px; margin-bottom:.5em; line-height:1.85;}
.article-body ul li::before{content:""; position:absolute; left:-14px; top:.72em; width:6px; height:6px; border-radius:50%; background:var(--brand);}
.article-body ol{list-style:none; counter-reset:li;}
.article-body ol li{counter-increment:li; position:relative; padding-left:8px; margin-bottom:.55em; line-height:1.85;}
.article-body ol li::before{content:counter(li); position:absolute; left:-22px; top:.18em; color:var(--brand); font-weight:700; font-size:15px;}
.article-body blockquote{
  margin:1.6em 0; padding:16px 20px; border-left:3px solid var(--brand);
  background:rgba(57,230,168,.05); border-radius:0 var(--r-md) var(--r-md) 0; color:var(--text-2);
}
.article-body img{border-radius:12px; margin:1.6em auto; border:1px solid var(--line);}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{text-align:center; font-size:13px; color:var(--text-3); margin-top:10px;}
.article-body code{background:var(--bg-3); border-radius:8px; padding:2px 6px; font-size:15px; font-family:ui-monospace,Menlo,Consolas,monospace; color:#B9F5DE;}
.article-body pre{background:var(--bg-3); border:1px solid var(--line); border-radius:var(--r-md); padding:18px; overflow-x:auto;}
.article-body pre code{background:none; padding:0;}
.article-body table{width:100%; border-collapse:collapse; margin:1.6em 0; font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line); padding:12px 14px; text-align:left;}
.article-body th{background:rgba(255,255,255,.03); font-weight:700;}
.article-body a{color:var(--brand); border-bottom:1px solid rgba(57,230,168,.35);}
.article-body a:hover{color:#fff; border-color:#fff;}
.article-body hr{border:0; height:1px; background:linear-gradient(90deg,transparent,rgba(57,230,168,.4),transparent); margin:2.4em 0;}

/* ---------- 空态 ---------- */
.empty-state{
  min-height:160px; border:1px dashed var(--line-strong); border-radius:var(--r-lg);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:14px;
  color:var(--text-2); text-align:center; padding:32px;
}
.empty-state svg{width:40px; height:40px; stroke:var(--text-3);}
.empty-state p{color:var(--text-2); font-size:16px;}
.empty-state a{color:var(--brand); font-size:14px; border-bottom:1px solid rgba(57,230,168,.35);}

/* ---------- 侧栏 ---------- */
.article-side{display:flex; flex-direction:column; gap:24px;}
@media (min-width:1280px){
  .article-side{position:sticky; top:96px;}
}
.side-card{background:var(--bg-2); border:1px solid var(--line); border-radius:var(--r-lg); padding:22px; box-shadow:var(--shadow-card);}
.side-card h3{font-size:16px; margin-bottom:14px; display:flex; align-items:center; gap:8px;}
.side-card h3::before{content:""; width:4px; height:16px; border-radius:2px; background:var(--brand);}
.side-list li{border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:0;}
.side-list a{display:block; padding:14px 0 14px 0; font-size:15px; color:var(--text-2); line-height:1.6; border-left:2px solid transparent; padding-left:0; transition:color var(--ease),padding-left var(--ease),border-color var(--ease);}
.side-list a:hover{color:var(--brand); padding-left:10px; border-left-color:var(--brand);}
.side-note{font-size:13px; color:var(--text-3); margin-top:10px;}
.side-cta{background:linear-gradient(160deg,rgba(57,230,168,.10),rgba(123,92,255,.12)); border:1px solid rgba(57,230,168,.45); border-radius:var(--r-lg); padding:22px;}
.side-cta h3{font-size:17px; margin-bottom:8px;}
.side-cta p{font-size:14px; color:var(--text-2); margin-bottom:16px; line-height:1.75;}

/* ---------- 文末区块 ---------- */
.article-foot{max-width:var(--read); margin:0 auto; padding-top:32px; border-top:1px solid var(--line);}
.foot-block{margin-bottom:48px;}
.foot-block h3{font-size:18px; margin-bottom:18px; display:flex; align-items:center; gap:8px;}
.foot-block h3::before{content:""; width:4px; height:18px; border-radius:2px; background:var(--brand); box-shadow:0 0 10px rgba(57,230,168,.5);}
.rel-grid{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:20px;}
.rel-card{background:var(--bg-2); border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden; display:flex; flex-direction:column; transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);}
.rel-card:hover{transform:translateY(-2px); border-color:rgba(57,230,168,.45); box-shadow:var(--shadow-hover);}
.rel-card__cover{aspect-ratio:16/10; overflow:hidden; background:linear-gradient(135deg,var(--bg-3),var(--bg-2));}
.rel-card__cover img{width:100%; height:100%; object-fit:cover; transition:transform .4s cubic-bezier(.4,0,.2,1);}
.rel-card:hover .rel-card__cover img{transform:scale(1.04);}
.rel-card__body{padding:16px 18px 20px;}
.rel-card__body h4{font-size:16px; line-height:1.6; margin-bottom:8px;}
.rel-card__body p{font-size:13px; color:var(--text-3);}
.pager{display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px;}
.pager a{
  display:flex; flex-direction:column; gap:6px; padding:18px 20px; border:1px solid var(--line);
  border-radius:var(--r-lg); background:var(--bg-2); transition:border-color var(--ease),transform var(--ease);
}
.pager a:hover{border-color:rgba(57,230,168,.45); transform:translateY(-2px);}
.pager span{font-size:13px; color:var(--text-3);}
.pager strong{font-size:15px; font-weight:600; line-height:1.6; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;}
.pager .pager-next{text-align:right; align-items:flex-end;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px; margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:20px 8px; background:transparent; border:0; cursor:pointer; text-align:left;
  font-size:16px; font-weight:600; color:var(--text-1); border-left:2px solid transparent; transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-q .faq-icon{flex:0 0 auto; width:22px; height:22px; border:1px solid var(--line-strong); border-radius:50%; display:grid; place-items:center; font-size:14px; color:var(--text-2); transition:transform var(--ease),color var(--ease),border-color var(--ease);}
.faq-item.is-open .faq-q{color:var(--brand); border-left-color:var(--brand); background:rgba(57,230,168,.04);}
.faq-item.is-open .faq-icon{transform:rotate(45deg); color:var(--brand); border-color:rgba(57,230,168,.5);}
.faq-a{max-height:0; overflow:hidden; transition:max-height .3s ease;}
.faq-a p{padding:0 8px 20px 26px; font-size:15px; line-height:1.85; color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative; overflow:hidden; border-radius:var(--r-xl); border:1px solid var(--line);
  background:var(--bg-2); padding:52px 48px;
}
.cta-band::before{
  content:""; position:absolute; inset:0; opacity:.9;
  background:linear-gradient(120deg,rgba(57,230,168,.14),rgba(123,92,255,.16) 60%,transparent);
}
.cta-band::after{
  content:""; position:absolute; inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px; mask-image:linear-gradient(120deg,#000,transparent 78%);
}
.cta-inner{position:relative; z-index:1; display:grid; grid-template-columns:1.1fr .9fr; gap:40px; align-items:center;}
.cta-inner h2{font-size:32px; margin-bottom:14px;}
.cta-inner p{color:var(--text-2); font-size:15px;}
.cta-form{display:flex; gap:12px;}
.cta-form input{
  flex:1; min-width:0; height:48px; padding:0 16px; border-radius:var(--r-sm);
  background:var(--bg-3); border:1px solid var(--line); color:var(--text-1);
}
.cta-form input::placeholder{color:var(--text-3);}
.cta-form input:focus{outline:none; border-color:var(--brand); box-shadow:0 0 0 3px rgba(57,230,168,.15);}
.cta-note{margin-top:14px; font-size:12px; color:var(--text-3);}

/* ---------- 页脚 ---------- */
.site-footer{position:relative; background:var(--bg-1); margin-top:96px;}
.site-footer::before{content:""; display:block; height:1px; background:linear-gradient(90deg,transparent,rgba(57,230,168,.5),rgba(123,92,255,.4),transparent);}
.footer-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; padding:64px 0 40px;}
.footer-brand p{color:var(--text-2); font-size:14px; line-height:1.8; margin-top:16px; max-width:320px;}
.footer-col h4{font-size:15px; margin-bottom:18px;}
.footer-col ul li{margin-bottom:12px;}
.footer-col a{color:var(--text-2); font-size:14px;}
.footer-col a:hover{color:var(--brand);}
.footer-contact div{font-size:14px; color:var(--text-2); margin-bottom:10px;}
.footer-contact b{color:var(--text-1); font-weight:600;}
.footer-qr{
  margin-top:16px; width:104px; height:104px; border:1px dashed var(--line-strong); border-radius:var(--r-md);
  display:grid; place-items:center; text-align:center; font-size:12px; color:var(--text-3); line-height:1.6;
}
.footer-bottom{border-top:1px solid var(--line); padding:20px 0 28px; text-align:center; font-size:12px; color:var(--text-3);}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .article-side{position:static;}
}
@media (max-width:1024px){
  .nav,.header-cta{display:none;}
  .burger{display:block;}
  .section{padding:72px 0;}
  .cta-inner{grid-template-columns:1fr; gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr; gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .article-title{font-size:26px;}
  .sec-title{font-size:24px;}
  .article-layout{gap:40px; padding:24px 0 72px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{padding:36px 24px;}
  .cta-inner h2{font-size:26px;}
  .footer-grid{padding:48px 0 32px;}
  .breadcrumb .crumb-current{max-width:56vw;}
}
@media (max-width:560px){
  body{font-size:16px;}
  .article-title{font-size:23px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:21px;}
  .rel-grid{grid-template-columns:1fr;}
  .pager{grid-template-columns:1fr;}
  .pager .pager-next{text-align:left; align-items:flex-start;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .article-meta .sep{display:none;}
}

/* roulang page: category1 */
:root{
  --bg-0:#08070E;
  --bg-1:#0F0D18;
  --bg-2:#151222;
  --bg-3:#1C1830;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text-1:#F2F0FA;
  --text-2:#A9A4C2;
  --text-3:#6E6889;
  --brand:#39E6A8;
  --brand-ink:#06140E;
  --brand-dim:rgba(57,230,168,.12);
  --accent:#7B5CFF;
  --hot:#FF4E9B;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --container:1200px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-brand:0 0 24px rgba(57,230,168,.18);
}
*,*::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-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 3px rgba(57,230,168,.20);border-radius:4px}
::selection{background:rgba(57,230,168,.28);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(15,13,24,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,230,168,.55),rgba(123,92,255,.45),transparent);
  opacity:.9;
}
.site-header.is-scrolled{background:rgba(8,7,14,.96);box-shadow:0 10px 30px rgba(0,0,0,.45)}
.header__inner{display:flex;align-items:center;gap:28px;height:68px;transition:height .25s ease}
.site-header.is-scrolled .header__inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;filter:drop-shadow(0 0 8px rgba(57,230,168,.35))}
.logo__mark svg{width:30px;height:30px}
.logo__text{font-size:16px;font-weight:800;letter-spacing:.4px;white-space:nowrap}
.logo__text em{font-style:normal;color:var(--brand);padding:0 2px}
.nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav__link{
  position:relative;display:inline-flex;align-items:center;height:38px;
  padding:0 12px;font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:var(--r-sm);transition:color .2s ease,background .2s ease;
}
.nav__link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav__link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(57,230,168,.5)}
.nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(57,230,168,.7);
}
.header__actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);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-1);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,3,9,.66);z-index:90;opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:100;
  background:var(--bg-2);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:24px 20px;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer__title{font-size:15px;font-weight:700;color:var(--text-2)}
.drawer__close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line-strong);font-size:18px;line-height:1;color:var(--text-2)}
.drawer__nav{display:flex;flex-direction:column}
.drawer__link{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:var(--r-sm);
  font-size:16px;color:var(--text-2);border-bottom:1px solid var(--line);
}
.drawer__link:hover{color:var(--text-1)}
.drawer__link.is-active{color:var(--brand);background:var(--brand-dim)}
.drawer__foot{margin-top:auto;padding-top:16px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:16px;font-weight:700;border:1px solid transparent;
  transition:transform .18s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--primary{background:var(--brand);color:var(--brand-ink)}
.btn--primary:hover{background:#46f0b3;transform:translateY(-1px);box-shadow:0 8px 20px rgba(57,230,168,.28)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn--ghost:hover{background:rgba(57,230,168,.10);transform:translateY(-1px)}
.btn--line{border-color:var(--line-strong);color:var(--text-1);background:transparent}
.btn--line:hover{border-color:var(--brand);color:var(--brand)}
.btn[disabled],.btn:disabled{opacity:.45;pointer-events:none}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.3px;
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.02);
}
.badge--brand{background:var(--brand);color:var(--brand-ink);border-color:transparent}
.badge--hot{background:var(--hot);color:#2A0716;border-color:transparent}
.badge--outline{border-color:rgba(57,230,168,.5);color:var(--brand)}
.badge--purple{border-color:rgba(123,92,255,.5);color:#BBA9FF}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  min-height:300px;display:flex;align-items:center;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(90deg,rgba(8,7,14,.94) 12%,rgba(8,7,14,.76) 58%,rgba(8,7,14,.9)),
                   url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;opacity:.6;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;left:-8%;bottom:-70%;width:540px;height:540px;
  background:radial-gradient(circle,rgba(57,230,168,.22),transparent 65%);pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;padding-top:56px;padding-bottom:48px}
.page-hero h1{
  font-size:32px;line-height:1.32;font-weight:800;letter-spacing:.4px;
  margin:18px 0 14px;max-width:760px;
}
.page-hero p{max-width:660px;color:var(--text-2);font-size:16px;line-height:1.85}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:22px;font-size:13px;color:var(--text-3)}
.breadcrumb a{color:var(--text-3);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:rgba(255,255,255,.18)}
.breadcrumb .current{color:var(--text-2)}

/* ---------- 锚点导航 + 卡片列表布局 ---------- */
.entry-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;align-items:start}
.anchor-nav{position:sticky;top:96px}
.anchor-nav__title{
  font-size:13px;font-weight:700;letter-spacing:1.2px;color:var(--text-3);
  text-transform:uppercase;margin-bottom:14px;padding-left:12px;
}
.anchor-nav__list{display:flex;flex-direction:column;gap:4px;border-left:1px solid var(--line)}
.anchor-nav__link{
  position:relative;display:block;padding:12px 14px;font-size:15px;color:var(--text-2);
  border-radius:0 var(--r-sm) var(--r-sm) 0;transition:color .2s ease,background .2s ease;
}
.anchor-nav__link::before{
  content:"";position:absolute;left:-1px;top:10px;bottom:10px;width:2px;border-radius:2px;
  background:transparent;transition:background .2s ease,box-shadow .2s ease;
}
.anchor-nav__link:hover{color:var(--text-1);background:rgba(255,255,255,.03)}
.anchor-nav__link.is-current{color:var(--brand);background:var(--brand-dim)}
.anchor-nav__link.is-current::before{background:var(--brand);box-shadow:0 0 10px rgba(57,230,168,.7)}
.anchor-nav__card{
  margin-top:24px;padding:20px;border-radius:var(--r-lg);
  background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.anchor-nav__card h3{font-size:16px;font-weight:700;margin-bottom:8px}
.anchor-nav__card p{font-size:14px;line-height:1.75;color:var(--text-2);margin-bottom:16px}

.anchor-block{margin-bottom:64px;scroll-margin-top:110px}
.anchor-block:last-child{margin-bottom:0}
.section-title{position:relative;padding-left:16px;font-size:28px;line-height:1.35;font-weight:800;margin-bottom:14px}
.section-title::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:22px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(57,230,168,.65);
}
.section-lead{max-width:760px;color:var(--text-2);font-size:16px;line-height:1.85;margin-bottom:28px}

.card-grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  position:relative;padding:24px;border-radius:var(--r-lg);
  background:var(--bg-2);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.card:hover{transform:translateY(-2px);border-color:rgba(57,230,168,.45);box-shadow:var(--shadow-card),var(--shadow-brand)}
.card__dot{position:absolute;left:24px;top:24px;width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(57,230,168,.8)}
.card__num{
  font-size:13px;font-weight:700;color:var(--text-3);letter-spacing:1px;
  display:block;margin-bottom:26px;
}
.card h3{font-size:19px;font-weight:700;line-height:1.5;margin-bottom:10px;padding-left:16px}
.card p{font-size:15px;line-height:1.85;color:var(--text-2);padding-left:16px}
.card__meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;padding-left:16px}

.step-list{display:flex;flex-direction:column;gap:0;margin-top:8px}
.step-item{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.step-item:last-child{border-bottom:0}
.step-item__idx{
  flex:0 0 auto;width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--brand);color:var(--brand-ink);font-size:15px;font-weight:800;
}
.step-item h3{font-size:17px;font-weight:700;margin-bottom:6px}
.step-item p{font-size:15px;color:var(--text-2);line-height:1.8}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:8px}
.stat{padding:22px;border-radius:var(--r-lg);background:var(--bg-2);border:1px solid var(--line)}
.stat__num{font-size:28px;font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:.5px}
.stat__label{font-size:13px;color:var(--text-3);margin-top:6px;line-height:1.6}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
  transition:color .2s ease,padding .2s ease,background .2s ease;
}
.faq__q:hover{color:var(--brand)}
.faq__icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;color:var(--text-2);
  transition:transform .25s ease,color .25s ease,border-color .25s ease;
}
.faq__item.is-open .faq__icon{transform:rotate(45deg);color:var(--brand);border-color:var(--brand)}
.faq__a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
  font-size:15px;line-height:1.85;color:var(--text-2);
}
.faq__a p{padding:0 0 22px 0}
.faq__item.is-open{background:rgba(57,230,168,.04);box-shadow:inset 2px 0 0 rgba(57,230,168,.7)}
.faq__item.is-open .faq__q{padding-left:16px}
.faq__item.is-open .faq__a p{padding-left:16px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);border:1px solid var(--line);
  background:var(--bg-2);
  background-image:linear-gradient(120deg,rgba(57,230,168,.16),rgba(123,92,255,.18)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:52px 48px;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(57,230,168,.24),transparent 68%);pointer-events:none;
}
.cta-band__copy{position:relative;z-index:2}
.cta-band h2{font-size:32px;line-height:1.3;font-weight:800;margin-bottom:14px}
.cta-band p{color:var(--text-2);font-size:16px;max-width:460px}
.cta-form{position:relative;z-index:2}
.cta-form__row{display:flex;gap:12px}
.cta-form input{
  flex:1 1 auto;height:48px;padding:0 16px;border-radius:var(--r-sm);
  background:var(--bg-3);border:1px solid var(--line);color:var(--text-1);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:var(--text-3)}
.cta-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(57,230,168,.15)}
.cta-form__note{margin-top:14px;font-size:12px;color:var(--text-3);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg-1);border-top:1px solid var(--line);margin-top:96px}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,230,168,.5),rgba(123,92,255,.4),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-2);margin-top:16px;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease}
.footer-col a:hover{color:var(--brand)}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;color:var(--text-2)}
.footer-contact b{color:var(--text-1);font-weight:600}
.footer-qr{
  margin-top:16px;width:112px;height:112px;border-radius:var(--r-md);
  border:1px dashed var(--line-strong);background:var(--bg-2);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.6;color:var(--text-3);
}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;text-align:center;
  font-size:12px;color:var(--text-3);
}

/* ---------- 断点 ---------- */
@media (max-width:1280px){
  .entry-layout{grid-template-columns:240px minmax(0,1fr);gap:36px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-qr{width:96px;height:96px}
}
@media (max-width:1024px){
  .nav,.header__actions .btn{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .entry-layout{grid-template-columns:1fr;gap:32px}
  .anchor-nav{position:static;margin-bottom:8px}
  .anchor-nav__list{flex-direction:row;overflow-x:auto;border-left:0;border-bottom:1px solid var(--line);padding-bottom:8px;-webkit-overflow-scrolling:touch}
  .anchor-nav__link{white-space:nowrap;border-radius:var(--r-sm)}
  .anchor-nav__link::before{display:none}
  .anchor-nav__card{display:none}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;padding:40px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.85}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .page-hero{min-height:0}
  .page-hero .container{padding-top:40px;padding-bottom:36px}
  .page-hero h1{font-size:26px;line-height:1.38}
  .section-title{font-size:23px}
  .card-grid2{grid-template-columns:1fr;gap:16px}
  .card{padding:20px}
  .cta-band h2{font-size:25px}
  .cta-form__row{flex-direction:column}
  .cta-form input{width:100%}
  .cta-form .btn{width:100%}
  .faq__q{font-size:15px;padding:18px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:56px}
}
@media (max-width:560px){
  .logo__text{font-size:14px}
  .header__inner{gap:14px}
  .page-hero h1{font-size:23px}
  .stats{grid-template-columns:1fr;gap:14px}
  .stat__num{font-size:24px}
  .btn{height:46px;padding:0 18px;font-size:15px}
  .anchor-block{margin-bottom:44px}
}

/* roulang page: category2 */
:root{
  --bg-0:#08070E;
  --bg-1:#0F0D18;
  --bg-2:#151222;
  --bg-3:#1C1830;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text-1:#F2F0FA;
  --text-2:#A9A4C2;
  --text-3:#6E6889;
  --brand:#39E6A8;
  --brand-ink:#06140E;
  --brand-dim:rgba(57,230,168,.12);
  --accent:#7B5CFF;
  --hot:#FF4E9B;
  --danger:#FF5C6C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --container:1200px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-brand:0 0 24px rgba(57,230,168,.18);
  --ease:.22s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--text-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:800}
p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 3px rgba(57,230,168,.2)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(15,13,24,.86);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background var(--ease);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;pointer-events:none;
  background:linear-gradient(90deg,transparent 4%,rgba(57,230,168,.6) 42%,rgba(123,92,255,.55) 68%,transparent 96%);
}
.header__inner{display:flex;align-items:center;gap:28px;height:68px;transition:height var(--ease)}
.site-header.is-scrolled{background:rgba(8,7,14,.94)}
.site-header.is-scrolled .header__inner{height:60px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo__mark{width:32px;height:32px;display:grid;place-items:center;filter:drop-shadow(0 0 8px rgba(57,230,168,.35))}
.logo__mark svg{width:32px;height:32px}
.logo__text{font-size:16px;font-weight:800;letter-spacing:.2px;white-space:nowrap}
.logo__text em{color:var(--brand);font-style:normal;margin:0 1px}
.nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav__link{
  position:relative;padding:10px 12px;font-size:15px;font-weight:500;color:var(--text-2);
  border-radius:var(--r-sm);white-space:nowrap;
}
.nav__link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav__link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(57,230,168,.5)}
.nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(57,230,168,.7);
}
.header__actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);align-items:center;justify-content:center;
  transition:border-color var(--ease),background var(--ease);
}
.burger:hover{border-color:var(--brand);background:rgba(57,230,168,.08)}
.burger span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,3,9,.62);z-index:88;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:90;
  background:var(--bg-2);border-left:1px solid var(--line-strong);
  transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:18px 18px 24px;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer__close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line-strong);color:var(--text-2)}
.drawer__close:hover{border-color:var(--brand);color:var(--brand)}
.drawer__nav{display:flex;flex-direction:column;margin:12px 0 0;overflow-y:auto}
.drawer__nav a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);border-radius:var(--r-sm);
}
.drawer__nav a:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.drawer__nav a.is-active{color:var(--brand);background:var(--brand-dim);border-bottom-color:rgba(57,230,168,.25)}
.drawer__cta{margin-top:auto}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform var(--ease),background var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:var(--brand-ink)}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 8px 20px rgba(57,230,168,.28)}
.btn--ghost{background:transparent;border-color:var(--line-strong);color:var(--text-2)}
.btn--ghost:hover{border-color:rgba(57,230,168,.5);color:var(--brand);background:rgba(57,230,168,.08)}
.btn--outline{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn--outline:hover{background:rgba(57,230,168,.10)}
.btn--sm{height:40px;padding:0 16px;font-size:14px;border-radius:var(--r-sm)}
.btn:active{transform:translateY(0) scale(.985)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;box-shadow:none}
.pill{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;letter-spacing:.3px;
}
.pill--outline{border:1px solid var(--line-strong);color:var(--text-2);background:rgba(255,255,255,.02)}
.pill--brand{background:var(--brand);color:var(--brand-ink)}
.pill--soft{background:var(--brand-dim);color:var(--brand);border:1px solid rgba(57,230,168,.28)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;white-space:nowrap;
}
.badge--outline{border:1px solid var(--line);color:var(--text-2)}
.badge--brand{background:var(--brand);color:var(--brand-ink)}
.badge--accent{background:rgba(123,92,255,.16);color:#B9A6FF;border:1px solid rgba(123,92,255,.4)}
.badge--hot{background:var(--hot);color:#2B0417}
.pill--outline:hover{border-color:var(--brand);color:var(--brand)}

/* ============ 版块基础 ============ */
.section{padding:96px 0;background:var(--bg-0);position:relative}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--deep{background:var(--bg-2);border-top:1px solid var(--line)}
.section__head{max-width:820px;margin-bottom:48px}
.section__title{
  position:relative;font-size:28px;padding-left:16px;margin-bottom:12px;
}
.section__title::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:20px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(57,230,168,.6);
}
.section__sub{color:var(--text-2);font-size:16px;max-width:720px}
.divider{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,transparent,rgba(57,230,168,.4),transparent);
}

/* ============ 分类 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background:
    radial-gradient(600px 320px at 12% 110%,rgba(57,230,168,.10),transparent 70%),
    radial-gradient(520px 300px at 88% -10%,rgba(123,92,255,.14),transparent 72%),
    linear-gradient(180deg,rgba(8,7,14,.74),rgba(8,7,14,.94)),
    url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  padding:76px 0 42px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{font-size:32px;margin:18px 0 14px;max-width:820px}
.page-hero p{max-width:680px;color:var(--text-2);font-size:16px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:26px;font-size:13px;color:var(--text-3)}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.2)}
.breadcrumb .current{color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:260px}

/* ============ 数据条 ============ */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  margin-top:36px;padding-top:28px;border-top:1px solid var(--line);
}
.stat__num{font-size:28px;font-weight:800;color:var(--brand);letter-spacing:.5px}
.stat__label{font-size:13px;color:var(--text-3);margin-top:2px}

/* ============ 时间轴 ============ */
.timeline{position:relative;max-width:900px;margin:0 auto;padding:6px 0}
.timeline::before{
  content:"";position:absolute;left:15px;top:18px;bottom:18px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(57,230,168,.85),rgba(123,92,255,.6),rgba(57,230,168,.12));
}
.timeline__item{position:relative;padding-left:60px;margin-bottom:28px}
.timeline__item:last-child{margin-bottom:0}
.timeline__dot{
  position:absolute;left:8px;top:26px;width:16px;height:16px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 4px rgba(57,230,168,.14),0 0 18px rgba(57,230,168,.55);
}
.timeline__dot--purple{background:var(--accent);box-shadow:0 0 0 4px rgba(123,92,255,.16),0 0 18px rgba(123,92,255,.5)}
.timeline__card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-card);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.timeline__card:hover{border-color:rgba(57,230,168,.45);transform:translateY(-2px);box-shadow:var(--shadow-card),var(--shadow-brand)}
.timeline__top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px}
.timeline__num{
  font-size:13px;font-weight:800;color:var(--brand);letter-spacing:1px;
  padding:3px 9px;border-radius:var(--r-pill);border:1px solid rgba(57,230,168,.32);background:var(--brand-dim);
  font-variant-numeric:tabular-nums;
}
.timeline__top h3{font-size:19px;margin-right:auto}
.timeline__card p{color:var(--text-2);font-size:16px}
.tick-list{margin-top:14px;display:grid;gap:8px}
.tick-list li{position:relative;padding-left:22px;font-size:15px;color:var(--text-2);line-height:1.75}
.tick-list li::before{
  content:"";position:absolute;left:2px;top:.62em;width:8px;height:8px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(57,230,168,.55);
}
.timeline__meta{
  display:flex;flex-wrap:wrap;gap:18px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--text-3);
}
.timeline__meta b{color:var(--text-2);font-weight:600}

/* ============ 档位速览 ============ */
.tiers{display:grid;gap:16px;max-width:1000px;margin:0 auto}
.tier{
  display:grid;grid-template-columns:200px 1fr 1.1fr;gap:24px;align-items:center;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 24px;position:relative;overflow:hidden;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.tier:hover{border-color:rgba(57,230,168,.4);transform:translateY(-2px);box-shadow:var(--shadow-card)}
.tier--hot{background:linear-gradient(90deg,rgba(57,230,168,.07),rgba(123,92,255,.05));border-color:rgba(57,230,168,.35)}
.tier--hot::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.tier__name{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800}
.tier__desc{color:var(--text-2);font-size:15px;line-height:1.8}
.tier__points{display:flex;flex-wrap:wrap;gap:8px}
.tier__points li{
  font-size:13px;color:var(--text-2);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:4px 12px;background:rgba(255,255,255,.02);
}
.tier--hot .tier__points li{border-color:rgba(57,230,168,.3);color:#CFF5E6}

/* ============ 图文分栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split__media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(135deg,var(--bg-3),var(--bg-2));aspect-ratio:16/10;
}
.split__media img{width:100%;height:100%;object-fit:cover}
.split__media::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,230,168,.22),transparent 68%);
}
.split__text h2{font-size:26px;margin-bottom:16px}
.split__text p{color:var(--text-2);margin-bottom:14px}
.plain-list{margin-top:6px;display:grid;gap:10px}
.plain-list li{
  position:relative;padding-left:18px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid var(--line);padding-bottom:10px;
}
.plain-list li:last-child{border-bottom:0;padding-bottom:0}
.plain-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--accent);
}

/* ============ FAQ ============ */
.faq{max-width:820px;margin:0 auto}
.faq__item{border-bottom:1px solid var(--line)}
.faq__item:first-child{border-top:1px solid var(--line)}
.faq__q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 4px;font-size:16px;font-weight:600;color:var(--text-1);
  transition:color var(--ease),background var(--ease);
}
.faq__q:hover{color:var(--brand)}
.faq__icon{
  margin-left:auto;flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line-strong);display:grid;place-items:center;
  font-size:15px;color:var(--brand);transition:transform var(--ease),border-color var(--ease);
}
.faq__item.is-open .faq__icon{transform:rotate(45deg);border-color:rgba(57,230,168,.55)}
.faq__item.is-open .faq__q{color:var(--brand)}
.faq__a{
  display:none;padding:0 4px 22px 0;font-size:15px;line-height:1.85;color:var(--text-2);
  border-left:2px solid var(--brand);padding-left:16px;margin-left:0;
}
.faq__item.is-open .faq__a{display:block;background:linear-gradient(90deg,rgba(57,230,168,.05),transparent)}
.faq__a p{margin-bottom:10px}
.faq__a p:last-child{margin-bottom:0}

/* ============ CTA ============ */
.cta{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:
    radial-gradient(420px 240px at 88% 120%,rgba(57,230,168,.16),transparent 70%),
    radial-gradient(360px 200px at 6% -20%,rgba(123,92,255,.18),transparent 72%),
    var(--bg-2);
  border:1px solid var(--line-strong);
  padding:48px 44px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
}
.cta h2{font-size:30px;margin-bottom:12px}
.cta p{color:var(--text-2);font-size:16px}
.cta__form{display:flex;gap:12px}
.cta__form input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-sm);
  background:var(--bg-3);border:1px solid var(--line);color:var(--text-1);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.cta__form input::placeholder{color:var(--text-3)}
.cta__form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(57,230,168,.15)}
.cta__note{margin-top:14px;font-size:12px;color:var(--text-3)}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);position:relative;padding:64px 0 0;margin-top:0}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,230,168,.55),rgba(123,92,255,.45),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:340px;line-height:1.85}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-1)}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand)}
.footer-contact{display:grid;gap:10px;font-size:14px;color:var(--text-2)}
.footer-contact b{color:var(--text-1);font-weight:600}
.footer-qr{
  margin-top:16px;width:104px;height:104px;border-radius:var(--r-md);
  border:1px dashed var(--line-strong);display:grid;place-items:center;text-align:center;
  font-size:12px;line-height:1.6;color:var(--text-3);background:rgba(255,255,255,.02);
}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;text-align:center;
  font-size:12px;color:var(--text-3);
}

/* ============ 断点 ============ */
@media (max-width:1280px){
  .section{padding:80px 0}
  .split{gap:36px}
}
@media (max-width:1024px){
  .nav{display:none}
  .burger{display:flex}
  .header__actions .btn{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .split{grid-template-columns:1fr;gap:32px}
  .split__media{order:-1}
  .section{padding:72px 0}
  .page-hero{padding:64px 0 36px}
  .page-hero h1{font-size:30px}
  .tier{grid-template-columns:180px 1fr;gap:18px}
  .tier__points{grid-column:1 / -1}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section__title{font-size:24px}
  .page-hero h1{font-size:27px}
  .stats{grid-template-columns:1fr 1fr;gap:18px}
  .cta{grid-template-columns:1fr;padding:36px 24px;gap:28px}
  .cta h2{font-size:24px}
  .cta__form{flex-direction:column}
  .cta__form .btn{width:100%}
  .tier{grid-template-columns:1fr;gap:14px;padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .timeline__item{padding-left:48px}
  .timeline::before{left:11px}
  .timeline__dot{left:4px;width:14px;height:14px}
  .timeline__top h3{font-size:17px;width:100%;margin-right:0}
}
@media (max-width:560px){
  .page-hero{padding:52px 0 30px}
  .page-hero h1{font-size:24px}
  .page-hero p{font-size:15px}
  .breadcrumb .current{max-width:160px}
  .stats{grid-template-columns:1fr 1fr}
  .stat__num{font-size:24px}
  .timeline__card{padding:18px}
  .faq__q{font-size:15px;gap:10px}
  .logo__text{font-size:15px}
}

/* roulang page: category3 */
:root{
  --bg-0:#08070E;--bg-1:#0F0D18;--bg-2:#151222;--bg-3:#1C1830;
  --line:rgba(255,255,255,.08);--line-strong:rgba(255,255,255,.16);
  --text-1:#F2F0FA;--text-2:#A9A4C2;--text-3:#6E6889;
  --brand:#39E6A8;--brand-ink:#06140E;--brand-dim:rgba(57,230,168,.12);
  --accent:#7B5CFF;--hot:#FF4E9B;
  --container:1200px;--read:780px;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:24px;--r-pill:999px;
  --s1:8px;--s2:16px;--s3:24px;--s4:32px;--s5:48px;--s6:64px;--s7:96px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 0 24px rgba(57,230,168,.18);
  --shadow-btn:0 8px 20px rgba(57,230,168,.28);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg-0);color:var(--text-1);font-family:var(--font);
  font-size:17px;line-height:1.9;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .22s ease}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.28;letter-spacing:-.01em}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 3px rgba(57,230,168,.20)}
::selection{background:rgba(57,230,168,.28);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(15,13,24,.86);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:height .25s ease,background .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,230,168,.55),rgba(123,92,255,.45),transparent);
}
.header__inner{display:flex;align-items:center;gap:24px;height:68px;transition:height .25s ease}
.site-header.is-scrolled .header__inner{height:60px}
.site-header.is-scrolled{background:rgba(8,7,14,.94)}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo__mark{width:30px;height:30px;display:grid;place-items:center}
.logo__mark svg{width:30px;height:30px;display:block}
.logo__text{font-size:16px;font-weight:800;letter-spacing:.02em;color:var(--text-1);white-space:nowrap}
.logo__text em{font-style:normal;color:var(--brand);margin:0 3px}
.nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav__link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;
  font-size:15px;font-weight:500;color:var(--text-2);border-radius:var(--r-sm);
  transition:color .22s ease,background .22s ease;
}
.nav__link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav__link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(57,230,168,.5)}
.nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(57,230,168,.6);
}
.header__actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.burger{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;background:rgba(255,255,255,.02);
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .25s ease,opacity .25s ease}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:80;
  background:var(--bg-2);border-left:1px solid var(--line-strong);
  transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:24px 20px 20px;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer__close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);color:var(--text-2);font-size:20px;line-height:1}
.drawer__nav{display:flex;flex-direction:column;gap:4px;overflow-y:auto}
.drawer__nav a{
  display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:var(--r-sm);
  color:var(--text-2);font-size:16px;border-left:2px solid transparent;
}
.drawer__nav a:hover,.drawer__nav a.is-active{color:var(--brand);border-left-color:var(--brand);background:rgba(57,230,168,.06)}
.drawer__cta{margin-top:auto;padding-top:20px}
.overlay{
  position:fixed;inset:0;background:rgba(4,3,9,.62);z-index:70;opacity:0;visibility:hidden;transition:opacity .3s ease;
}
.overlay.is-open{opacity:1;visibility:visible}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:16px;font-weight:700;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,filter .2s ease;
}
.btn--sm{height:40px;padding:0 16px;font-size:14px;border-radius:var(--r-sm)}
.btn--primary{background:var(--brand);color:var(--brand-ink)}
.btn--primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--shadow-btn)}
.btn--primary:active{transform:translateY(0);filter:brightness(.96)}
.btn--ghost{border:1px solid var(--brand);color:var(--brand);background:transparent}
.btn--ghost:hover{background:rgba(57,230,168,.10);transform:translateY(-1px)}
.btn--quiet{border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.02)}
.btn--quiet:hover{border-color:var(--brand);color:var(--brand)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- meta bits ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.02);
  transition:border-color .22s ease,color .22s ease;
}
.pill:hover{border-color:var(--brand);color:var(--brand)}
.pill--brand{background:var(--brand);color:var(--brand-ink);border-color:transparent}
.pill--hot{background:var(--hot);color:#25000F;border-color:transparent}
.pill--line{border-color:rgba(57,230,168,.45);color:var(--brand);background:rgba(57,230,168,.08)}
.pill--accent{border-color:rgba(123,92,255,.5);color:#C6B8FF;background:rgba(123,92,255,.10)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px rgba(57,230,168,.7);display:inline-block}

/* ---------- section basics ---------- */
main{display:block}
.section{padding:var(--s7) 0}
.section--tight{padding:var(--s6) 0}
.section--alt{background:var(--bg-1)}
.section--alt2{background:var(--bg-2)}
.section__head{margin-bottom:var(--s5)}
.section__title{font-size:28px;display:flex;align-items:center;gap:12px}
.section__title::before{
  content:"";width:4px;height:20px;border-radius:2px;background:var(--brand);
  box-shadow:0 0 10px rgba(57,230,168,.6);flex-shrink:0;
}
.section__desc{margin-top:12px;color:var(--text-2);font-size:15px;max-width:720px}
.section__head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.link-more{color:var(--brand);font-size:14px;font-weight:600}
.link-more:hover{text-shadow:0 0 12px rgba(57,230,168,.6)}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--bg-1);border-bottom:1px solid var(--line)}
.cat-hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(8,7,14,.94) 0%,rgba(8,7,14,.78) 46%,rgba(8,7,14,.55) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.cat-hero__glow{
  position:absolute;left:-120px;bottom:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,230,168,.20),transparent 68%);pointer-events:none;
}
.cat-hero__grid{
  position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;pointer-events:none;
}
.cat-hero__inner{position:relative;z-index:2;padding:68px 0 36px;max-width:760px}
.cat-hero h1{font-size:32px;margin:16px 0 14px}
.cat-hero__lead{font-size:16px;line-height:1.95;color:var(--text-2);max-width:640px}
.cat-hero__stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:28px}
.stat__num{font-size:28px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2}
.stat__label{font-size:13px;color:var(--text-3)}
.crumbs{
  position:relative;z-index:2;display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--text-3);padding:16px 0 20px;border-top:1px solid var(--line);
}
.crumbs a:hover{color:var(--brand)}
.crumbs span.sep{color:var(--text-3);opacity:.6}
.crumbs b{font-weight:600;color:var(--text-2)}

/* ---------- thumbs ---------- */
.thumb{
  position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(135deg,var(--bg-3),var(--bg-2));aspect-ratio:16/10;
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.thumb__badge{position:absolute;left:12px;bottom:12px;z-index:2}
.thumb__fallback{position:absolute;inset:0;display:grid;place-items:center;color:var(--text-3)}

/* ---------- content grid ---------- */
.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.feature-card{
  grid-column:span 2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:0;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-card);transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.feature-card:hover{border-color:rgba(57,230,168,.45);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.feature-card .thumb{border:0;border-radius:0;aspect-ratio:auto;height:100%;min-height:300px}
.feature-card__body{padding:28px;display:flex;flex-direction:column;gap:14px}
.feature-card__title{font-size:22px;line-height:1.4}
.feature-card__text{color:var(--text-2);font-size:15px;line-height:1.85}
.card{
  position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--shadow-card);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.card:hover{border-color:rgba(57,230,168,.45);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.card .thumb{margin-bottom:16px}
.card__title{font-size:17px;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card__title{color:var(--brand)}
.card__text{font-size:14px;color:var(--text-2);line-height:1.8}
.card__meta{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.card__meta .sep{width:1px;height:10px;background:var(--line-strong)}
.card__state{position:absolute;top:16px;right:16px}

/* ---------- list ---------- */
.split{display:grid;grid-template-columns:1.6fr 1fr;gap:32px;align-items:start}
.rank-list{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-2);overflow:hidden}
.rank-item{
  display:flex;align-items:center;gap:16px;min-height:56px;padding:12px 20px;
  border-bottom:1px solid var(--line);transition:background .22s ease;
}
.rank-item:last-child{border-bottom:0}
.rank-item:hover{background:rgba(57,230,168,.05)}
.rank-item__no{
  font-size:15px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;
  width:28px;flex-shrink:0;
}
.rank-item__main{flex:1;min-width:0;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.rank-item__title{font-size:16px;color:var(--text-1);transition:color .22s ease,padding-left .22s ease}
.rank-item:hover .rank-item__title{color:var(--brand);padding-left:6px;box-shadow:inset 2px 0 0 var(--brand)}
.rank-item__time{font-size:13px;color:var(--text-3);flex-shrink:0;font-variant-numeric:tabular-nums}
.aside-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--shadow-card);
}
.aside-card h3{font-size:18px;margin-bottom:14px}
.aside-card p{font-size:14px;color:var(--text-2);line-height:1.85}
.aside-list{margin-top:16px;display:flex;flex-direction:column;gap:12px}
.aside-list li{display:flex;justify-content:space-between;gap:12px;font-size:14px;color:var(--text-2);padding-bottom:12px;border-bottom:1px dashed var(--line)}
.aside-list li:last-child{border-bottom:0;padding-bottom:0}
.aside-list b{color:var(--text-1);font-variant-numeric:tabular-nums}
.aside-cta{margin-top:20px}

/* ---------- tags cloud ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- uneven cards ---------- */
.uneven{display:grid;grid-template-columns:1.35fr 1fr;gap:32px}
.uneven__wide{grid-column:span 2;display:grid;grid-template-columns:1fr 1.6fr;gap:24px;align-items:center;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  transition:border-color .25s ease,box-shadow .25s ease;}
.uneven__wide:hover{border-color:rgba(57,230,168,.4);box-shadow:var(--shadow-hover)}
.step-no{
  font-size:48px;font-weight:800;line-height:1;color:transparent;-webkit-text-stroke:1px rgba(57,230,168,.55);
  font-variant-numeric:tabular-nums;display:block;margin-bottom:12px;
}
.bar{height:6px;border-radius:999px;background:var(--bg-3);overflow:hidden;margin-top:16px}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--accent))}

/* ---------- faq ---------- */
.faq{max-width:820px;margin:0 auto}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
  transition:color .22s ease,padding-left .22s ease;
}
.faq__q:hover{color:var(--brand)}
.faq__icon{
  position:relative;width:20px;height:20px;flex-shrink:0;
}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .28s ease;
}
.faq__icon::before{width:14px;height:2px}
.faq__icon::after{width:2px;height:14px}
.faq__item.is-open .faq__icon::before{transform:translate(-50%,-50%) rotate(45deg)}
.faq__item.is-open .faq__icon::after{transform:translate(-50%,-50%) rotate(45deg)}
.faq__a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq__a p{
  font-size:15px;line-height:1.85;color:var(--text-2);padding:0 0 22px 18px;
  border-left:2px solid transparent;
}
.faq__item.is-open{background:rgba(57,230,168,.04)}
.faq__item.is-open .faq__a p{border-left-color:var(--brand)}
.faq__item.is-open .faq__q{color:var(--brand)}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);border:1px solid var(--line);
  background:var(--bg-2);padding:48px;display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(57,230,168,.14),rgba(123,92,255,.16) 60%,transparent);
  pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,230,168,.18),transparent 70%);pointer-events:none;
}
.cta-band__inner{position:relative;z-index:2}
.cta-band h2{font-size:32px;margin-bottom:12px}
.cta-band p{color:var(--text-2);font-size:15px}
.cta-form{position:relative;z-index:2;display:flex;gap:12px}
.cta-form input{
  flex:1;min-width:0;height:48px;padding:0 16px;border-radius:var(--r-sm);
  background:var(--bg-3);border:1px solid var(--line);color:var(--text-1);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.cta-form input::placeholder{color:var(--text-3)}
.cta-form input:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(57,230,168,.15)}
.cta-note{position:relative;z-index:2;grid-column:1/-1;font-size:12px;color:var(--text-3);margin-top:4px}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--bg-1);border-top:1px solid var(--line);padding-top:64px}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,230,168,.5),rgba(123,92,255,.4),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand p{font-size:14px;color:var(--text-2);line-height:1.85;margin-top:16px;max-width:320px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-1)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--brand)}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2)}
.footer-contact b{color:var(--text-1);font-weight:600}
.footer-qr{
  margin-top:16px;width:112px;height:112px;border-radius:var(--r-md);border:1px dashed var(--line-strong);
  display:grid;place-items:center;text-align:center;font-size:12px;color:var(--text-3);line-height:1.6;
  background:linear-gradient(135deg,var(--bg-3),var(--bg-2));
}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;text-align:center;font-size:12px;color:var(--text-3);
}

/* ---------- skeleton / empty ---------- */
.empty{
  min-height:160px;border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  display:grid;place-items:center;text-align:center;color:var(--text-3);font-size:14px;gap:8px;
}
.skeleton{
  height:14px;border-radius:6px;
  background:linear-gradient(90deg,var(--bg-3) 0%,var(--bg-2) 50%,var(--bg-3) 100%);
  background-size:200% 100%;animation:flow 1.4s linear infinite;
}
@keyframes flow{from{background-position:200% 0}to{background-position:-200% 0}}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .nav__link{padding:0 10px;font-size:14px}
  .header__inner{gap:16px}
}
@media (max-width:1024px){
  .nav{display:none}
  .burger{display:inline-flex}
  .header__actions .btn--primary{display:none}
  .content-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .feature-card{grid-column:span 2;grid-template-columns:1fr}
  .feature-card .thumb{min-height:240px}
  .split{grid-template-columns:1fr}
  .uneven{grid-template-columns:1fr 1fr}
  .uneven__wide{grid-column:span 2;grid-template-columns:1fr}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:40px 32px}
}
@media (max-width:768px){
  body{font-size:16px}
  .cat-hero__inner{padding:48px 0 28px}
  .cat-hero h1{font-size:28px}
  .cat-hero__lead{font-size:15px}
  .cat-hero__stats{gap:24px}
  .content-grid{grid-template-columns:1fr}
  .feature-card{grid-column:span 1}
  .feature-card__body{padding:22px}
  .uneven{grid-template-columns:1fr}
  .uneven__wide{grid-column:span 1}
  .section__title{font-size:24px}
  .cta-band h2{font-size:26px}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
  .rank-item{align-items:flex-start;flex-direction:column;gap:6px}
  .rank-item__time{font-size:12px}
}
@media (max-width:560px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .cat-hero h1{font-size:24px}
  .stat__num{font-size:24px}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 20px;border-radius:var(--r-lg)}
  .logo__text{font-size:14px}
}

/* roulang page: category4 */
:root{
  --bg-0:#08070E;--bg-1:#0F0D18;--bg-2:#151222;--bg-3:#1C1830;
  --line:rgba(255,255,255,.08);--line-strong:rgba(255,255,255,.16);
  --text-1:#F2F0FA;--text-2:#A9A4C2;--text-3:#6E6889;
  --brand:#39E6A8;--brand-ink:#06140E;--brand-dim:rgba(57,230,168,.12);
  --accent:#7B5CFF;--hot:#FF4E9B;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:24px;--r-pill:999px;
  --container:1200px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 0 24px rgba(57,230,168,.18);
  --shadow-btn:0 8px 20px rgba(57,230,168,.28);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg-0);color:var(--text-1);
  font-family:var(--font);font-size:17px;line-height:1.9;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;letter-spacing:.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 3px rgba(57,230,168,.20)}
::selection{background:rgba(57,230,168,.25);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--tint{background:var(--bg-2)}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.section__title{font-size:28px;position:relative;padding-left:16px}
.section__title::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:20px;
  background:var(--brand);border-radius:2px;box-shadow:0 0 14px rgba(57,230,168,.7)
}
.section__desc{margin-top:10px;color:var(--text-2);font-size:15px;max-width:640px}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(57,230,168,.4),transparent);border:0;margin:0}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(15,13,24,.86);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:height .25s ease,background .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,230,168,.6),rgba(123,92,255,.5),transparent);
  opacity:.7
}
.header__inner{display:flex;align-items:center;gap:32px;height:68px;transition:height .25s ease}
.site-header.is-scrolled .header__inner{height:60px}
.site-header.is-scrolled{background:rgba(11,10,18,.95)}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{width:30px;height:30px;display:inline-flex}
.logo__mark svg{width:100%;height:100%}
.logo__text{font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:.02em;white-space:nowrap}
.logo__text em{color:var(--brand);font-style:normal;margin:0 1px}
.nav{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap}
.nav__link{
  position:relative;padding:10px 12px;font-size:15px;font-weight:500;
  color:var(--text-2);white-space:nowrap;border-radius:var(--r-sm);
}
.nav__link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav__link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(57,230,168,.5)}
.nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;box-shadow:0 0 10px rgba(57,230,168,.7)
}
.header__actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform .18s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn--primary{background:var(--brand);color:var(--brand-ink)}
.btn--primary:hover{background:#4df0b6;color:var(--brand-ink);transform:translateY(-1px);box-shadow:var(--shadow-btn)}
.btn--ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn--ghost:hover{background:rgba(57,230,168,.10);color:var(--brand)}
.btn--quiet{background:transparent;border-color:var(--line-strong);color:var(--text-2)}
.btn--quiet:hover{border-color:var(--brand);color:var(--brand)}
.btn--sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-sm)}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em
}
.badge--outline{border:1px solid var(--line-strong);color:var(--text-2)}
.badge--brand{background:var(--brand);color:var(--brand-ink)}
.badge--hot{background:var(--hot);color:#1A0512}
.badge--purple{border:1px solid rgba(123,92,255,.5);color:#B9A8FF;background:rgba(123,92,255,.10)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;color:var(--text-2);border:1px solid var(--line);transition:.2s ease
}
.tag:hover{color:var(--brand);border-color:var(--brand)}

/* ---------- 内页首屏 ---------- */
.page-hero{
  position:relative;min-height:300px;display:flex;align-items:flex-end;
  padding:88px 0 34px;overflow:hidden;
  background-image:
    radial-gradient(560px 260px at 12% 110%,rgba(57,230,168,.16),transparent 70%),
    linear-gradient(180deg,rgba(8,7,14,.72),rgba(8,7,14,.88)),
    url("/assets/images/backpic/back-2.png");
  background-size:cover,cover,cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{font-size:32px;margin:14px 0 12px;max-width:760px}
.page-hero p{color:var(--text-2);font-size:16px;max-width:700px}
.breadcrumb{display:flex;align-items:center;gap:8px;margin-top:20px;font-size:14px;color:var(--text-3);flex-wrap:wrap}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span{color:var(--text-2)}

/* ---------- 对比表 ---------- */
.compare{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-card)
}
.compare__row{display:grid;grid-template-columns:1.5fr repeat(3,1fr)}
.compare__row + .compare__row{border-top:1px solid var(--line)}
.compare__row > div{
  display:flex;align-items:center;justify-content:center;
  min-height:56px;padding:8px 20px;font-size:15px;text-align:center
}
.compare__label{justify-content:flex-start !important;text-align:left !important;color:var(--text-2)}
.compare__row--head{background:rgba(255,255,255,.03)}
.compare__row--head > div{font-size:14px;font-weight:700;color:var(--text-1);letter-spacing:.03em}
.compare__col--best{background:rgba(57,230,168,.06);position:relative}
.compare__row--head .compare__col--best::after{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent))
}
.compare__col--best .compare__value{color:var(--text-1);font-weight:600}
.compare__value{color:var(--text-2)}
.compare__yes{color:var(--brand);font-weight:700}
.compare__no{color:var(--text-3)}
.compare__head-cell{display:flex;flex-direction:column;gap:2px;align-items:center}
.compare__head-cell b{font-size:15px}
.compare__head-cell small{font-size:12px;color:var(--text-3);font-weight:500}

/* ---------- 分栏问答 ---------- */
.qa-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:start}
.qa-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease
}
.qa-card + .qa-card{margin-top:16px}
.qa-card:hover{transform:translateY(-2px);border-color:rgba(57,230,168,.45);box-shadow:var(--shadow-hover)}
.qa-card h3{font-size:18px;margin-bottom:10px}
.qa-card p{color:var(--text-2);font-size:15px;line-height:1.85}
.qa-card__index{
  display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;
  border-radius:var(--r-sm);background:var(--brand-dim);color:var(--brand);
  font-size:13px;font-weight:800;margin-right:10px
}

/* ---------- 行式列表 ---------- */
.rows{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-2);overflow:hidden}
.rows__item{
  display:flex;align-items:center;gap:16px;min-height:56px;padding:12px 22px;
  border-bottom:1px solid var(--line);transition:padding .2s ease,background .2s ease
}
.rows__item:last-child{border-bottom:0}
.rows__item:hover{background:rgba(57,230,168,.04);padding-left:26px}
.rows__item:hover .rows__title{color:var(--brand)}
.rows__dot{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:0 0 auto;box-shadow:0 0 10px rgba(57,230,168,.8)}
.rows__title{font-size:15px;font-weight:600;flex:1 1 auto;transition:color .2s ease}
.rows__meta{font-size:13px;color:var(--text-3);white-space:nowrap}

/* ---------- 小表 ---------- */
.mini-table{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--bg-2)}
.mini-table__row{display:grid;grid-template-columns:1.1fr 1.6fr .7fr;align-items:center;min-height:56px;border-bottom:1px solid var(--line)}
.mini-table__row:last-child{border-bottom:0}
.mini-table__row > div{padding:10px 20px;font-size:14.5px}
.mini-table__row--head{background:rgba(255,255,255,.03);font-size:13px;color:var(--text-2);font-weight:700}
.mini-table__topic{color:var(--text-1);font-weight:600}
.mini-table__action{color:var(--text-2)}
.mini-table__time{color:var(--brand);font-weight:600;text-align:right}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:center}
.split__media{position:relative;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.split__media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split__media::after{
  content:"";position:absolute;inset:auto -30% -50% auto;width:260px;height:260px;
  background:radial-gradient(circle,rgba(57,230,168,.30),transparent 68%);pointer-events:none
}
.split__tag{
  position:absolute;left:16px;bottom:16px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(8,7,14,.72);color:var(--brand);font-size:12px;font-weight:700;backdrop-filter:blur(6px)
}
.split h2{font-size:26px;margin-bottom:16px}
.split p{color:var(--text-2);font-size:16px;margin-bottom:14px}
.split ul li{
  position:relative;padding-left:22px;margin-bottom:10px;color:var(--text-2);font-size:15px
}
.split ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 10px rgba(57,230,168,.7)
}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq__item{border-bottom:1px solid var(--line)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 8px;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
  transition:color .2s ease
}
.faq__q:hover{color:var(--brand)}
.faq__icon{position:relative;width:16px;height:16px;flex:0 0 auto;transition:transform .3s ease}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px
}
.faq__icon::before{left:0;top:7px;width:16px;height:2px}
.faq__icon::after{left:7px;top:0;width:2px;height:16px}
.faq__item.is-open .faq__icon{transform:rotate(45deg)}
.faq__item.is-open .faq__q{color:var(--brand)}
.faq__a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .32s ease}
.faq__item.is-open .faq__a{grid-template-rows:1fr}
.faq__a-inner{overflow:hidden}
.faq__a-inner p{
  color:var(--text-2);font-size:15px;line-height:1.85;
  padding:0 8px 22px 0;border-left:2px solid transparent
}
.faq__item.is-open .faq__a-inner p{
  padding-left:16px;border-left-color:var(--brand);background:rgba(57,230,168,.04)
}

/* ---------- CTA ---------- */
.cta{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  background:linear-gradient(135deg,rgba(57,230,168,.10),rgba(123,92,255,.14)),var(--bg-2);
  border:1px solid var(--line);padding:48px;box-shadow:var(--shadow-card)
}
.cta::before{
  content:"";position:absolute;inset:auto -60px -120px auto;width:340px;height:340px;
  background:radial-gradient(circle,rgba(123,92,255,.35),transparent 70%);pointer-events:none
}
.cta__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.cta h2{font-size:32px;margin-bottom:12px}
.cta__inner p{color:var(--text-2);font-size:16px}
.cta__form{display:flex;gap:12px}
.cta__form input{
  flex:1 1 auto;height:48px;padding:0 16px;border-radius:var(--r-sm);
  background:var(--bg-3);border:1px solid var(--line);color:var(--text-1);min-width:0
}
.cta__form input::placeholder{color:var(--text-3)}
.cta__form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(57,230,168,.15)}
.cta__note{position:relative;z-index:2;margin-top:16px;font-size:12px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg-1);padding:64px 0 0;margin-top:0}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,230,168,.55),rgba(123,92,255,.45),transparent)
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{margin-top:16px;color:var(--text-2);font-size:14px;line-height:1.85;max-width:320px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-1)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--text-2)}
.footer-col ul a:hover{color:var(--brand)}
.footer-contact div{font-size:14px;color:var(--text-2);margin-bottom:8px}
.footer-contact b{color:var(--text-1);font-weight:600}
.footer-qr{
  margin-top:16px;width:120px;height:120px;border-radius:var(--r-md);
  border:1px dashed var(--line-strong);display:flex;align-items:center;justify-content:center;
  text-align:center;font-size:12px;color:var(--text-3);line-height:1.6;
  background:linear-gradient(135deg,var(--bg-2),var(--bg-3))
}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--line);
  text-align:center;font-size:12px;color:var(--text-3)
}

/* ---------- 移动端抽屉 ---------- */
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line);align-items:center;justify-content:center
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);transition:.2s ease
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,3,8,.6);opacity:0;visibility:hidden;
  transition:.25s ease;z-index:90
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:100;
  background:var(--bg-2);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:20px
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer__close{width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);color:var(--text-2)}
.drawer__nav{flex:1 1 auto;overflow-y:auto;padding:12px 0}
.drawer__nav a{
  display:flex;align-items:center;min-height:44px;padding:0 10px;border-radius:var(--r-sm);
  font-size:15px;color:var(--text-2)
}
.drawer__nav a:hover{background:rgba(255,255,255,.05);color:var(--text-1)}
.drawer__nav a.is-active{color:var(--brand);background:var(--brand-dim)}
.drawer__foot{padding-top:16px;border-top:1px solid var(--line)}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .nav__link{padding:10px 9px;font-size:14px}
  .section{padding:88px 0}
}
@media (max-width:1024px){
  .nav{display:none}
  .nav-toggle{display:inline-flex}
  .header__actions .btn--primary{display:none}
  .section{padding:72px 0}
  .qa-grid{grid-template-columns:1fr;gap:20px}
  .split{grid-template-columns:1fr;gap:32px}
  .cta__inner{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-hero{min-height:270px;padding:76px 0 28px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section__head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:32px}
  .section__title{font-size:23px}
  .page-hero h1{font-size:27px}
  .compare__row{grid-template-columns:1fr;padding:8px 0}
  .compare__row + .compare__row{padding-top:12px}
  .compare__row > div{justify-content:space-between !important;text-align:left !important;min-height:48px;border-top:1px solid var(--line)}
  .compare__row > div:first-child{border-top:0}
  .compare__row--head{display:none}
  .compare__cell::before{content:attr(data-label);color:var(--text-3);font-size:13px;margin-right:16px}
  .compare__col--best{background:rgba(57,230,168,.06)}
  .mini-table__row{grid-template-columns:1fr;padding:12px 0}
  .mini-table__row > div{padding:6px 18px}
  .mini-table__row--head{display:none}
  .mini-table__time{text-align:left}
  .mini-table__topic::before{content:attr(data-label);color:var(--text-3);font-size:13px;display:block;font-weight:400}
  .cta{padding:28px 22px;border-radius:var(--r-lg)}
  .cta h2{font-size:24px}
  .cta__form{flex-direction:column}
  .cta__form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .split h2{font-size:22px}
}
@media (max-width:560px){
  .logo__text{font-size:15px}
  .page-hero{padding:66px 0 24px;min-height:250px}
  .page-hero h1{font-size:24px}
  .rows__item{flex-wrap:wrap;gap:8px}
  .rows__meta{width:100%}
  .faq__q{font-size:15px;padding:18px 4px}
  .badge{font-size:11px}
  .section__title{font-size:21px}
}

/* roulang page: category5 */
:root{
  --bg-0:#08070E;--bg-1:#0F0D18;--bg-2:#151222;--bg-3:#1C1830;
  --line:rgba(255,255,255,.08);--line-strong:rgba(255,255,255,.16);
  --text-1:#F2F0FA;--text-2:#A9A4C2;--text-3:#6E6889;
  --brand:#39E6A8;--brand-ink:#06140E;--brand-dim:rgba(57,230,168,.12);
  --accent:#7B5CFF;--hot:#FF4E9B;
  --container:1200px;--read:780px;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:24px;--r-pill:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 8px 24px rgba(0,0,0,.4),0 0 24px rgba(57,230,168,.18);
}
*,*::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-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.9;letter-spacing:.01em;
}
body.is-locked{overflow:hidden}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(15,13,24,.86);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,230,168,.6),rgba(123,92,255,.5),transparent);
}
.header__inner{display:flex;align-items:center;gap:24px;height:68px;transition:height .25s ease}
.site-header.is-shrink{background:rgba(8,7,14,.95);box-shadow:0 10px 30px rgba(0,0,0,.45)}
.site-header.is-shrink .header__inner{height:60px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo__mark{width:30px;height:30px;display:inline-flex;flex:0 0 auto;filter:drop-shadow(0 0 8px rgba(57,230,168,.45))}
.logo__mark svg{width:100%;height:100%;display:block}
.logo__text{font-size:16px;font-weight:800;letter-spacing:.02em;color:var(--text-1);white-space:nowrap}
.logo__text em{color:var(--brand);font-style:normal;margin:0 2px}
.nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav__link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:15px;font-weight:500;color:var(--text-2);border-radius:var(--r-sm);
}
.nav__link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand);opacity:0;transform:scaleX(.4);transition:opacity .2s ease,transform .2s ease;
}
.nav__link:hover{color:var(--text-1);background:rgba(255,255,255,.03)}
.nav__link.is-active{color:var(--brand);text-shadow:0 0 12px rgba(57,230,168,.5)}
.nav__link.is-active::after{opacity:1;transform:scaleX(1)}
.header__actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.hamburger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:rgba(255,255,255,.02);align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn--primary{background:var(--brand);color:var(--brand-ink);box-shadow:0 0 0 rgba(57,230,168,0)}
.btn--primary:hover{background:#4bee b1;background:#4beeb1;transform:translateY(-1px);box-shadow:0 8px 20px rgba(57,230,168,.28)}
.btn--primary:active{transform:translateY(0);background:#33d69b}
.btn--ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn--ghost:hover{background:rgba(57,230,168,.10);transform:translateY(-1px)}
.btn--quiet{background:transparent;border-color:var(--line-strong);color:var(--text-2)}
.btn--quiet:hover{color:var(--brand);border-color:rgba(57,230,168,.5)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}
.btn:disabled,.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- 徽章 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  font-size:12px;font-weight:600;color:var(--text-2);letter-spacing:.04em;
}
.pill--brand{border-color:rgba(57,230,168,.45);background:var(--brand-dim);color:var(--brand)}
.pill--hot{border-color:transparent;background:var(--hot);color:#20040f}
.pill--solid{background:var(--brand);color:var(--brand-ink);border-color:transparent}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero__veil{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(8,7,14,.96) 0%,rgba(8,7,14,.78) 46%,rgba(21,18,34,.72) 100%);
}
.page-hero__glow{
  position:absolute;left:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,230,168,.22),transparent 68%);
}
.page-hero__grid{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent);
}
.page-hero__inner{position:relative;z-index:2;padding:64px 0 56px;max-width:800px}
.page-hero h1{
  font-size:34px;line-height:1.28;font-weight:800;letter-spacing:-.01em;margin:18px 0 20px;
}
.page-hero h1 span{color:var(--brand)}
.page-hero__desc{color:var(--text-2);font-size:16px;line-height:1.95;max-width:660px}
.page-hero__desc + .page-hero__desc{margin-top:10px}
.breadcrumb{display:flex;align-items:center;gap:8px;margin-top:24px;font-size:13px;color:var(--text-3);flex-wrap:wrap}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:var(--line-strong)}
.breadcrumb .current{color:var(--text-2);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section--alt{background:var(--bg-1)}
.section--deep{background:var(--bg-2)}
.section__head{max-width:780px;margin-bottom:48px}
.section__head h2{
  position:relative;font-size:28px;font-weight:800;line-height:1.35;padding-left:16px;margin-bottom:14px;
}
.section__head h2::before{
  content:"";position:absolute;left:0;top:6px;width:4px;height:22px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(57,230,168,.7);
}
.section__head p{color:var(--text-2);font-size:16px}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(57,230,168,.4),transparent);border:0;margin:0}

/* ---------- Zigzag ---------- */
.zigzag{display:flex;flex-direction:column;gap:72px}
.zig-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.zig-row--flip .zig-media{order:2}
.zig-media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);aspect-ratio:16/10;background:var(--bg-3);
}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.zig-row:hover .zig-media img{transform:scale(1.04)}
.zig-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,7,14,0) 45%,rgba(8,7,14,.55) 100%);
}
.zig-media__tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(8,7,14,.72);border:1px solid rgba(57,230,168,.35);color:var(--brand);font-size:12px;font-weight:600;
}
.zig-body h3{font-size:22px;font-weight:800;line-height:1.4;margin-bottom:14px}
.zig-body p{color:var(--text-2);font-size:16px;line-height:1.95}
.zig-body p + p{margin-top:12px}
.zig-points{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.zig-points li{position:relative;padding-left:22px;color:var(--text-2);font-size:15px;line-height:1.8}
.zig-points li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(57,230,168,.6);
}
.zig-index{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--text-3);margin-bottom:10px;
}

/* ---------- 自检清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.check-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.check-card:hover{border-color:rgba(57,230,168,.45);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.check-card__icon{
  width:40px;height:40px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(57,230,168,.3);background:var(--brand-dim);color:var(--brand);margin-bottom:16px;
}
.check-card__icon svg{width:20px;height:20px}
.check-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.check-card p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;gap:16px;align-items:flex-start;margin-top:40px;padding:20px 24px;
  background:rgba(57,230,168,.05);border:1px solid rgba(57,230,168,.28);
  border-left:3px solid var(--brand);border-radius:var(--r-md);
}
.notice strong{color:var(--brand);font-size:15px;flex:0 0 auto}
.notice p{font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:48px}
.stat{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 22px;
}
.stat b{display:block;font-size:28px;font-weight:800;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 12px 22px 0;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
  transition:color .2s ease,padding-left .2s ease,background .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-item.is-open{background:rgba(57,230,168,.04);border-left:2px solid var(--brand)}
.faq-item.is-open .faq-q{padding-left:14px}
.faq-a{padding:0 40px 22px 14px;font-size:15px;line-height:1.85;color:var(--text-2)}
.faq-a p + p{margin-top:10px}

/* ---------- CTA ---------- */
.cta-wrap{padding:96px 0}
.cta{
  position:relative;overflow:hidden;border-radius:var(--r-xl);border:1px solid var(--line);
  background:var(--bg-2);padding:56px;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(57,230,168,.14),rgba(123,92,255,.16));
}
.cta::after{
  content:"";position:absolute;right:-140px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,230,168,.2),transparent 68%);
}
.cta__inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.cta h2{font-size:32px;font-weight:800;line-height:1.3;margin-bottom:14px}
.cta p{color:var(--text-2);font-size:16px}
.cta-form{display:flex;gap:12px}
.cta-form input{
  flex:1 1 auto;min-width:0;height:48px;padding:0 16px;border-radius:var(--r-sm);
  background:var(--bg-3);border:1px solid var(--line);color:var(--text-1);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:var(--text-3)}
.cta-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(57,230,168,.15)}
.cta-note{margin-top:16px;font-size:12px;color:var(--text-3);line-height:1.7}
.form-msg{margin-top:12px;font-size:13px;color:var(--brand);display:none}
.form-msg.is-show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg-1);padding:72px 0 0;margin-top:0}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(57,230,168,.6),rgba(123,92,255,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.9;max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--text-1)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col ul a{font-size:14px;color:var(--text-2)}
.footer-col ul a:hover{color:var(--brand)}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--text-2)}
.footer-contact b{color:var(--text-1);font-weight:600}
.footer-qr{
  margin-top:18px;width:108px;height:108px;border-radius:var(--r-md);border:1px dashed var(--line-strong);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.6;color:var(--text-3);background:var(--bg-2);
}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;text-align:center;
  font-size:12px;color:var(--text-3);
}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,3,9,.6);z-index:80;opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:360px;z-index:90;
  background:var(--bg-2);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:24px;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer__close{width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);color:var(--text-2);font-size:18px;line-height:1}
.drawer__nav{display:flex;flex-direction:column;gap:4px;overflow-y:auto}
.drawer__nav a{
  display:flex;align-items:center;min-height:44px;padding:0 14px;border-radius:var(--r-sm);
  font-size:15px;color:var(--text-2);border:1px solid transparent;
}
.drawer__nav a:hover{color:var(--text-1);background:rgba(255,255,255,.03)}
.drawer__nav a.is-active{color:var(--brand);background:var(--brand-dim);border-color:rgba(57,230,168,.28)}
.drawer__foot{margin-top:auto;padding-top:20px}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1024px){
  .nav{display:none}
  .hamburger{display:flex}
  .header__actions .btn--primary{display:none}
  .section{padding:72px 0}
  .cta-wrap{padding:72px 0}
  .zigzag{gap:56px}
  .zig-row{gap:36px}
  .cta{padding:40px}
  .cta__inner{grid-template-columns:1fr;gap:28px}
}
@media (max-width:768px){
  body{font-size:16px}
  .container{padding:0 20px}
  .page-hero__inner{padding:48px 0 44px}
  .page-hero h1{font-size:28px}
  .section{padding:56px 0}
  .section__head{margin-bottom:32px}
  .section__head h2{font-size:24px}
  .zig-row{grid-template-columns:1fr;gap:24px}
  .zig-row--flip .zig-media{order:0}
  .zig-row:nth-child(even) .zig-media{order:0}
  .check-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .cta-wrap{padding:56px 0}
  .cta{padding:28px}
  .cta h2{font-size:26px}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
  .faq-a{padding-right:12px}
}
@media (max-width:560px){
  .page-hero h1{font-size:26px}
  .stats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .zig-body h3{font-size:19px}
  .notice{flex-direction:column;gap:8px}
}