/* roulang page: index */
:root{
  --bg:#F4F7FB;
  --bg-soft:#EAF0F7;
  --surface:#FFFFFF;
  --surface-2:#F8FAFD;
  --ink:#12202F;
  --ink-2:#1D2E42;
  --muted:#5A6B80;
  --weak:#8A98A9;
  --line:rgba(18,32,47,.09);
  --line-strong:rgba(18,32,47,.16);
  --neon:#12C98C;
  --neon-deep:#0BA876;
  --neon-soft:rgba(18,201,140,.12);
  --spark:#FF7A3D;
  --spark-soft:rgba(255,122,61,.12);
  --danger:#E5505F;
  --nav-bg:rgba(7,11,20,.9);
  --radius-xl:26px;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-sm:0 6px 22px -14px rgba(16,40,70,.32);
  --shadow:0 16px 44px -24px rgba(16,40,70,.36);
  --shadow-lg:0 28px 70px -34px rgba(16,40,70,.5);
  --glow:0 10px 30px -10px rgba(18,201,140,.55);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
html body{
  margin:0;padding:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:96px 0}}
.section-soft{background:linear-gradient(180deg,#F4F7FB 0%,#EDF3F9 100%)}
.section-dark{background:radial-gradient(circle at 82% 18%,rgba(18,201,140,.18),transparent 45%),radial-gradient(circle at 8% 90%,rgba(255,122,61,.14),transparent 42%),#070B14;color:#E8EEF7}
.num-tab{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--nav-bg);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,rgba(18,201,140,.85),rgba(18,201,140,.12) 48%,rgba(255,122,61,.65));
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(18,201,140,.88),rgba(11,168,118,.65));
  color:#06231A;font-weight:900;font-size:16px;
  box-shadow:0 0 0 1px rgba(18,201,140,.5) inset,0 8px 22px -10px rgba(18,201,140,.8);
}
.brand-text{color:#F2F7FD;font-weight:800;font-size:16px;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:none;align-items:center;gap:6px}
@media (min-width:1024px){.main-nav{display:flex}}
.nav-link{
  position:relative;padding:9px 14px;border-radius:999px;
  color:#A9B7C9;font-size:15px;font-weight:600;
  transition:color .22s ease,background .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--neon),rgba(18,201,140,.2));
  transform:scaleX(0);transform-origin:left;transition:transform .24s cubic-bezier(.2,.7,.3,1);
}
.nav-link:hover{color:#FFFFFF}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:#3BF0B4}
.nav-link.active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(18,201,140,.75)}
.nav-link.active::before{
  content:"";position:absolute;left:2px;top:50%;width:4px;height:4px;border-radius:50%;
  transform:translateY(-50%);background:var(--neon);box-shadow:0 0 8px var(--neon);
}
.nav-cta{display:none}
@media (min-width:1024px){.nav-cta{display:inline-flex}}
.burger{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(18,201,140,.45);color:#3BF0B4;background:rgba(18,201,140,.08);
}
@media (min-width:1024px){.burger{display:none}}
.burger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(7,11,20,.98);
  padding:24px 22px 32px;display:flex;flex-direction:column;
  transform:translateY(-102%);transition:transform .32s cubic-bezier(.2,.7,.3,1);
}
.drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  color:#E8EEF7;font-size:20px;display:grid;place-items:center;
}
.drawer-nav{display:flex;flex-direction:column;gap:10px}
.drawer-nav a{
  color:#D7E1EE;font-size:18px;font-weight:700;padding:14px 16px;border-radius:14px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);
  opacity:0;transform:translateY(8px);
}
.drawer.open .drawer-nav a{opacity:1;transform:translateY(0);transition:all .3s cubic-bezier(.2,.7,.3,1)}
.drawer.open .drawer-nav a:nth-child(1){transition-delay:.05s}
.drawer.open .drawer-nav a:nth-child(2){transition-delay:.1s}
.drawer.open .drawer-nav a:nth-child(3){transition-delay:.15s}
.drawer-foot{margin-top:auto;color:#7C8CA1;font-size:13px;line-height:1.9}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 20px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1.2;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-lg{min-height:52px;padding:14px 28px;font-size:16px}
.btn-neon{
  color:#04231A;background:linear-gradient(135deg,#3BF0B4,#12C98C);
  box-shadow:0 0 0 1px rgba(18,201,140,.5) inset,var(--glow);
}
.btn-neon:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(18,201,140,.6) inset,0 16px 38px -12px rgba(18,201,140,.8)}
.btn-spark{
  color:#2A1206;background:linear-gradient(135deg,#FFA06B,#FF7A3D);
  box-shadow:0 12px 30px -12px rgba(255,122,61,.7);
}
.btn-spark:hover{transform:translateY(-2px);box-shadow:0 16px 36px -12px rgba(255,122,61,.85)}
.btn-ghost{
  color:#12202F;background:rgba(255,255,255,.72);border:1px solid var(--line-strong);
}
.btn-ghost:hover{border-color:rgba(18,201,140,.7);color:var(--neon-deep);transform:translateY(-2px)}
.btn-ghost-dark{
  color:#E8EEF7;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
}
.btn-ghost-dark:hover{border-color:rgba(18,201,140,.6);color:#3BF0B4;transform:translateY(-2px)}

/* ---------- 通用标签 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:700;
  color:var(--neon-deep);background:var(--neon-soft);border:1px solid rgba(18,201,140,.28);
}
.eyebrow-dark{color:#3BF0B4;background:rgba(18,201,140,.1);border-color:rgba(18,201,140,.3)}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:700;line-height:1.6;
  background:var(--neon-soft);color:var(--neon-deep);border:1px solid rgba(18,201,140,.25);
}
.chip-spark{background:var(--spark-soft);color:#D2541A;border-color:rgba(255,122,61,.3)}
.chip-plain{background:rgba(18,32,47,.05);color:var(--muted);border-color:var(--line)}
.chip-dark{background:rgba(255,255,255,.07);color:#C6D4E5;border-color:rgba(255,255,255,.12)}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:34px}
.sec-num{font-size:13px;font-weight:900;letter-spacing:.22em;color:var(--neon-deep)}
.sec-title{font-size:clamp(22px,3.1vw,30px);font-weight:800;letter-spacing:-.02em;margin-top:8px;color:var(--ink)}
.sec-title::before{content:"";display:inline-block;width:4px;height:20px;border-radius:3px;background:linear-gradient(180deg,var(--neon),rgba(18,201,140,.25));margin-right:12px;vertical-align:-2px}
.sec-sub{margin-top:10px;color:var(--muted);font-size:15px;max-width:660px}
.sec-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--neon-deep)}
.sec-more:hover{gap:10px}
.sec-more{transition:gap .22s ease}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:48px 0 56px;
  background:
    radial-gradient(circle at 10% 4%,rgba(18,201,140,.13),transparent 42%),
    radial-gradient(circle at 94% 10%,rgba(255,122,61,.13),transparent 40%),
    linear-gradient(180deg,#F4F7FB,#EEF4FA);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(18,32,47,.13) 1px,transparent 1px);
  background-size:22px 22px;opacity:.45;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 72%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 72%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:44px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.15fr .85fr;gap:56px}}
.hero h1{
  font-size:clamp(30px,4.6vw,52px);font-weight:800;letter-spacing:-.025em;line-height:1.15;
  margin:18px 0 0;color:var(--ink);
}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;border-radius:4px;
  background:linear-gradient(90deg,rgba(255,122,61,.55),rgba(255,122,61,.05));z-index:-1;
}
.hero-sub{margin-top:18px;color:var(--muted);font-size:16px;max-width:620px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-trust li{
  display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;
  font-size:13px;font-weight:700;color:var(--ink-2);
  background:rgba(255,255,255,.8);border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.hero-trust li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--neon);box-shadow:0 0 8px rgba(18,201,140,.9)}
.phone-wrap{display:flex;justify-content:center}
.phone-card{
  position:relative;width:100%;max-width:330px;aspect-ratio:9/16;border-radius:var(--radius-xl);
  overflow:hidden;background:#0B1220;border:1px solid rgba(255,255,255,.16);
  box-shadow:0 40px 80px -38px rgba(7,11,20,.75),0 0 0 1px rgba(18,201,140,.18);
}
.phone-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.phone-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.28) 0%,rgba(7,11,20,.35) 42%,rgba(7,11,20,.92) 100%);
}
.phone-top{
  position:absolute;top:0;left:0;right:0;z-index:2;padding:16px 16px 0;
  display:flex;align-items:center;gap:8px;
}
.tick-track{flex:1;height:4px;border-radius:999px;background:rgba(255,255,255,.22);overflow:hidden}
.tick-fill{display:block;width:68%;height:100%;border-radius:999px;background:linear-gradient(90deg,#3BF0B4,#12C98C);box-shadow:0 0 12px rgba(18,201,140,.9)}
.tick-label{font-size:11px;font-weight:800;color:#D7E1EE;letter-spacing:.08em}
.phone-side{
  position:absolute;top:64px;right:12px;z-index:2;display:flex;flex-direction:column;gap:8px;align-items:flex-end;
}
.phone-side span{
  font-size:11px;font-weight:800;padding:5px 10px;border-radius:999px;
  background:rgba(255,122,61,.9);color:#2A1206;
}
.phone-side span.alt{background:rgba(18,201,140,.92);color:#04231A}
.phone-ticks{
  position:absolute;left:12px;top:70px;bottom:120px;z-index:2;width:3px;border-radius:3px;
  background:repeating-linear-gradient(180deg,rgba(255,255,255,.65) 0 6px,transparent 6px 14px);
  opacity:.45;
}
.phone-bottom{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:20px 18px 22px}
.phone-bottom p{color:#F2F7FD;font-size:16px;font-weight:800;line-height:1.45;margin-bottom:12px}
.phone-play{
  display:inline-flex;align-items:center;gap:9px;padding:9px 16px;border-radius:999px;
  background:rgba(18,201,140,.95);color:#04231A;font-size:13px;font-weight:800;
  box-shadow:0 12px 26px -12px rgba(18,201,140,.9);
}
.phone-play i{
  width:0;height:0;border-left:8px solid #04231A;border-top:5px solid transparent;border-bottom:5px solid transparent;display:block;
}

/* ---------- 信任窄条 ---------- */
.stats-strip{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line)}
@media (min-width:768px){.stats-grid{grid-template-columns:repeat(4,1fr)}}
.stat-cell{background:#FFFFFF;padding:26px 20px;display:flex;flex-direction:column;gap:6px;transition:background .22s ease}
.stat-cell:hover{background:#F7FBF9}
.stat-cell b{font-size:26px;font-weight:900;color:var(--neon-deep);letter-spacing:-.02em}
.stat-cell span{font-size:14px;font-weight:700;color:var(--ink-2)}
.stat-cell small{font-size:12px;color:var(--weak);line-height:1.7}

/* ---------- 横滑片段 ---------- */
.scroll-x{
  display:flex;gap:16px;overflow-x:auto;padding:4px 20px 20px;margin:0 -20px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
@media (min-width:1024px){.scroll-x{padding:4px 32px 20px;margin:0 -32px}}
.scroll-x::-webkit-scrollbar{height:0}
.scroll-x{scrollbar-width:none}
.clip-card{
  position:relative;flex:0 0 168px;scroll-snap-align:start;border-radius:var(--radius);
  overflow:hidden;background:#0B1220;border:1px solid rgba(18,32,47,.1);
  box-shadow:var(--shadow-sm);transition:transform .24s cubic-bezier(.2,.7,.3,1),box-shadow .24s ease,border-color .24s ease;
}
@media (min-width:640px){.clip-card{flex:0 0 208px}}
@media (min-width:1024px){.clip-card{flex:0 0 232px}}
.clip-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(18,201,140,.5)}
.clip-media{position:relative;aspect-ratio:3/4;background:linear-gradient(150deg,#1B2740,#0B1220)}
.clip-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.clip-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,20,.05) 35%,rgba(7,11,20,.85) 100%)}
.clip-time{
  position:absolute;left:10px;top:10px;z-index:2;
  font-size:11px;font-weight:800;padding:4px 9px;border-radius:999px;
  background:rgba(255,122,61,.94);color:#2A1206;
}
.clip-body{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:14px}
.clip-body h3{color:#F2F7FD;font-size:15px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clip-tags{display:flex;gap:6px;margin-top:9px;flex-wrap:wrap}
.clip-tags span{font-size:11px;font-weight:700;padding:3px 8px;border-radius:999px;background:rgba(255,255,255,.14);color:#D7E1EE;border:1px solid rgba(255,255,255,.16)}
.clip-tags span.hot{background:rgba(18,201,140,.22);color:#8CF3CE;border-color:rgba(18,201,140,.4)}
.img-fallback{background:linear-gradient(140deg,#22304A,#101A2B)!important}

/* ---------- 种草清单 ---------- */
.list-rows{border-top:1px solid var(--line)}
.list-row{
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:18px;
  padding:22px 16px;border-bottom:1px solid var(--line);
  transition:background .22s ease,padding .22s ease;
}
.list-row:hover{background:rgba(18,201,140,.05);padding-left:22px}
.list-idx{
  font-size:clamp(34px,6vw,64px);font-weight:900;line-height:1;
  color:rgba(18,32,47,.1);letter-spacing:-.04em;transition:color .24s ease;
}
.list-row:hover .list-idx{color:rgba(18,201,140,.36)}
.list-main h3{font-size:17px;font-weight:800;color:var(--ink);line-height:1.4}
.list-main p{margin-top:6px;color:var(--muted);font-size:14px}
.list-go{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--muted);transition:all .22s ease;
}
.list-row:hover .list-go{border-color:rgba(18,201,140,.6);color:var(--neon-deep);background:rgba(18,201,140,.1)}
@media (max-width:520px){
  .list-row{grid-template-columns:1fr;gap:10px}
  .list-idx{font-size:32px}
  .list-go{display:none}
}

/* ---------- 内容卡 ---------- */
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .24s cubic-bezier(.2,.7,.3,1),box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(18,201,140,.45)}
.card h3{
  font-size:17px;font-weight:800;line-height:1.45;margin-top:14px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card p{
  margin-top:10px;color:var(--muted);font-size:14px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;
  gap:10px;font-size:12px;color:var(--weak);
}
.card-foot .go{
  width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--muted);transition:all .22s ease;
}
.card:hover .card-foot .go{border-color:rgba(18,201,140,.6);color:var(--neon-deep);background:rgba(18,201,140,.1)}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius-lg);background:#FFF;
  padding:52px 24px;text-align:center;
}
.empty-icon{
  width:58px;height:58px;margin:0 auto 16px;border-radius:50%;
  border:2px solid rgba(18,201,140,.55);display:grid;place-items:center;color:var(--neon-deep);font-weight:900;
}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px}

/* ---------- 口碑横滑 ---------- */
.voice-card{
  flex:0 0 280px;scroll-snap-align:start;background:#FFFFFF;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm);
}
@media (min-width:640px){.voice-card{flex:0 0 320px}}
.voice-head{display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;flex:0 0 40px;
  background:linear-gradient(140deg,rgba(18,201,140,.9),rgba(11,168,118,.65));
  color:#04231A;font-weight:900;font-size:15px;
}
.voice-head strong{display:block;font-size:14px;color:var(--ink)}
.voice-head span{font-size:12px;color:var(--weak)}
.voice-card p{margin-top:14px;color:var(--ink-2);font-size:14px;line-height:1.8}
.stars{margin-top:14px;display:flex;gap:3px;color:var(--neon);font-size:13px;letter-spacing:2px}

/* ---------- CTA 大卡 ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  background:radial-gradient(circle at 88% 20%,rgba(18,201,140,.3),transparent 46%),linear-gradient(135deg,#0B1220,#070B14);
  border:1px solid rgba(255,255,255,.1);
  padding:38px 26px;
}
@media (min-width:1024px){.cta-card{padding:52px 48px}}
.cta-card::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:20px 20px;opacity:.35;
  -webkit-mask-image:linear-gradient(90deg,rgba(0,0,0,.9),transparent 80%);
  mask-image:linear-gradient(90deg,rgba(0,0,0,.9),transparent 80%);
}
.cta-inner{position:relative;display:grid;gap:26px;align-items:center}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.4fr auto}}
.cta-inner h2{color:#F2F7FD;font-size:clamp(22px,3vw,30px);font-weight:800;letter-spacing:-.02em;line-height:1.3}
.cta-inner p{color:#A9B7C9;font-size:15px;margin-top:12px;max-width:600px}
.cta-note{color:#6E7F96;font-size:12px;margin-top:12px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item.open{border-color:rgba(18,201,140,.55);box-shadow:var(--shadow-sm)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:18px 20px;font-size:16px;font-weight:700;color:var(--ink);min-height:56px;
}
.faq-q .mark{
  width:26px;height:26px;flex:0 0 26px;border-radius:50%;display:grid;place-items:center;
  background:var(--neon-soft);color:var(--neon-deep);font-size:13px;font-weight:900;
}
.faq-q .arrow{margin-left:auto;color:var(--weak);font-size:13px;transition:transform .22s ease}
.faq-item.open .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s cubic-bezier(.2,.7,.3,1)}
.faq-a p{padding:0 20px 20px 60px;color:var(--muted);font-size:14px;line-height:1.85}
@media (max-width:520px){.faq-a p{padding-left:20px}}

/* ---------- 页脚 ---------- */
.site-footer{background:#070B14;color:#A9B7C9;padding:56px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
.foot-col h4{font-size:14px;font-weight:800;color:#3BF0B4;margin-bottom:16px;letter-spacing:.04em}
.foot-col p{font-size:13px;line-height:1.9;color:#8A98A9}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:13px;color:#A9B7C9;transition:color .2s ease,transform .2s ease;display:inline-block}
.foot-col a:hover{color:#3BF0B4;transform:translateX(3px)}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12px;color:#6E7F96;
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);color:#A9B7C9;font-size:12px;transition:all .2s ease;
}
.to-top:hover{border-color:rgba(18,201,140,.6);color:#3BF0B4}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg:#070B14;
  --bg-2:#0B1220;
  --surface:rgba(255,255,255,.06);
  --surface-2:rgba(255,255,255,.03);
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --primary:#22E3A5;
  --secondary:#FF7A3D;
  --text:#E8EEF7;
  --muted:#A9B7C9;
  --dim:#6E7F96;
  --warn:#FFC24B;
  --danger:#FF5D6C;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 8px 40px -12px rgba(0,0,0,.8);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:1024px){.container{padding:0 32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.88);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(34,227,165,.55),rgba(34,227,165,.10) 42%,transparent 80%);
}
.nav-wrap{display:flex;align-items:center;gap:14px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  font-weight:800;font-size:16px;color:#04170F;
  background:linear-gradient(135deg,#22E3A5,#12B98A);
  box-shadow:0 6px 20px -8px rgba(34,227,165,.8);
}
.brand-text{font-weight:800;font-size:16px;letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:none;align-items:center;gap:2px;margin-left:auto;}
@media(min-width:1024px){.main-nav{display:flex;}}
.nav-link{
  position:relative;padding:8px 14px;border-radius:10px;
  color:var(--muted);font-size:15px;font-weight:600;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--primary);}
.nav-link.active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(34,227,165,.9);}
.nav-link.active::before{
  content:"";position:absolute;left:2px;top:50%;margin-top:-2px;
  width:4px;height:4px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 8px var(--primary);
}
.nav-cta{display:none;margin-left:10px;}
@media(min-width:1024px){.nav-cta{display:inline-flex;}}
.burger{
  display:grid;place-items:center;width:44px;height:44px;margin-left:auto;
  border:1px solid rgba(34,227,165,.35);border-radius:12px;background:rgba(34,227,165,.06);
}
@media(min-width:1024px){.burger{display:none;}}
.burger span{position:relative;width:18px;height:2px;border-radius:2px;background:var(--primary);}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--primary);
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* ---------- drawer ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;display:flex;flex-direction:column;gap:24px;padding:24px;
  background:rgba(7,11,20,.97);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.mobile-drawer.open{opacity:1;visibility:visible;}
@media(min-width:1024px){.mobile-drawer{display:none;}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid rgba(34,227,165,.35);
  color:var(--primary);font-size:22px;line-height:1;display:grid;place-items:center;
}
.drawer-nav{display:flex;flex-direction:column;gap:10px;}
.drawer-link{
  padding:14px 16px;border-radius:14px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);font-size:16px;font-weight:600;color:var(--text);
  opacity:0;transform:translateY(8px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),background .2s,border-color .2s;
}
.drawer-link:hover{border-color:rgba(34,227,165,.35);background:rgba(34,227,165,.08);}
.mobile-drawer.open .drawer-link{opacity:1;transform:none;}
.drawer-link:nth-child(1){transition-delay:.03s;}
.drawer-link:nth-child(2){transition-delay:.06s;}
.drawer-link:nth-child(3){transition-delay:.09s;}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}
.drawer-note{font-size:12px;color:var(--dim);line-height:1.8;}

/* ---------- buttons / chips ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,border-color .25s,color .25s;
}
.btn-primary{
  background:linear-gradient(135deg,#22E3A5,#12BE8A);color:#04170F;
  box-shadow:0 6px 24px -8px rgba(34,227,165,.6);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 34px -6px rgba(34,227,165,.75);}
.btn-ghost{
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);
}
.btn-ghost:hover{border-color:rgba(34,227,165,.4);color:#fff;transform:translateY(-2px);background:rgba(34,227,165,.08);}
.btn:active{transform:translateY(0);}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.6;
  border:1px solid rgba(255,255,255,.14);color:var(--muted);background:rgba(255,255,255,.04);
}
.chip-primary{border-color:rgba(34,227,165,.45);color:#8FF3D2;background:rgba(34,227,165,.10);}
.chip-warm{border-color:rgba(255,122,61,.45);color:#FFB98F;background:rgba(255,122,61,.10);}
.text-link{font-size:14px;font-weight:600;color:var(--primary);transition:opacity .2s;}
.text-link:hover{opacity:.75;}

/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;padding:36px 0 8px;}
.article-hero::before{
  content:"";position:absolute;top:-180px;left:-12%;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,227,165,.16),transparent 62%);
  pointer-events:none;
}
.article-hero::after{
  content:"";position:absolute;top:-60px;right:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,61,.12),transparent 65%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--dim);
}
.breadcrumb a{color:var(--muted);transition:color .2s;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:rgba(110,127,150,.7);}
.crumb-current{
  display:inline-block;max-width:260px;overflow:hidden;white-space:nowrap;
  text-overflow:ellipsis;vertical-align:bottom;color:var(--muted);
}
.article-tags-top{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px;}
.article-title{
  margin-top:16px;
  font-size:clamp(27px,4.4vw,46px);
  font-weight:800;line-height:1.22;letter-spacing:-.02em;
  max-width:900px;
}
.article-title::after{
  content:"";display:block;width:64px;height:3px;border-radius:3px;margin-top:18px;
  background:linear-gradient(90deg,var(--primary),rgba(34,227,165,0));
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:16px;font-size:13px;color:var(--dim);
  font-variant-numeric:tabular-nums;
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(110,127,150,.6);}

/* ---------- cover ---------- */
.article-cover-wrap{padding:28px 0 0;}
.article-cover{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  aspect-ratio:16/9;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(135deg,#0B1220 0%,#122033 55%,#0E2A24 100%);
  box-shadow:var(--shadow);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}
.article-cover img.is-hidden{display:none;}
.article-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,0) 45%,rgba(7,11,20,.55) 100%);
  pointer-events:none;
}
.cover-note{
  position:absolute;left:20px;bottom:16px;z-index:2;
  font-size:12px;color:rgba(232,238,247,.78);
}

/* ---------- layout ---------- */
.article-section{padding:48px 0 0;}
.article-layout{display:grid;grid-template-columns:1fr;gap:36px;align-items:start;}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:48px;}
}
.article-main{min-width:0;}

/* ---------- article body ---------- */
.article-body{
  max-width:760px;
  font-size:16px;line-height:1.9;color:#D6DEEA;
  word-break:break-word;
}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  margin:40px 0 16px;padding-left:14px;
  font-size:clamp(20px,2.4vw,26px);font-weight:800;line-height:1.35;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),rgba(34,227,165,.18));
}
.article-body h3{margin:28px 0 12px;font-size:19px;font-weight:700;color:var(--text);}
.article-body h4{margin:22px 0 10px;font-size:17px;font-weight:700;color:var(--text);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em;}
.article-body li{position:relative;margin:.45em 0;}
.article-body ul li::before{
  content:"";position:absolute;left:-1.1em;top:.72em;width:6px;height:6px;border-radius:2px;
  background:var(--primary);
}
.article-body ol{counter-reset:item;padding-left:1.9em;}
.article-body ol li{counter-increment:item;}
.article-body ol li::before{
  content:counter(item);
  position:absolute;left:-1.9em;top:.32em;
  width:1.35em;height:1.35em;border-radius:6px;
  display:grid;place-items:center;
  font-size:12px;font-weight:700;color:var(--primary);
  background:rgba(34,227,165,.12);
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  border-left:3px solid var(--primary);border-radius:0 var(--r-md) var(--r-md) 0;
  background:var(--surface-2);color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{margin:24px auto;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.08);}
.article-body figure{margin:24px 0;}
.article-body figure img{margin:0 auto;}
.article-body figcaption{margin-top:10px;font-size:12px;color:var(--dim);text-align:center;}
.article-body a{
  color:var(--primary);
  text-decoration:underline;
  text-decoration-style:dashed;
  text-underline-offset:3px;
  text-decoration-color:rgba(34,227,165,.55);
}
.article-body a:hover{text-decoration-style:solid;}
.article-body strong{color:#fff;font-weight:700;}
.article-body hr{border:0;height:1px;margin:32px 0;background:linear-gradient(90deg,rgba(34,227,165,.4),transparent);}
.article-body table{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:14px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:rgba(255,255,255,.04);color:var(--text);font-weight:700;}
.article-body code{
  padding:2px 6px;border-radius:6px;font-size:14px;
  background:rgba(255,255,255,.06);color:#9FF3DA;
}

/* ---------- empty state ---------- */
.empty-state{
  max-width:560px;padding:40px 28px;text-align:center;
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  box-shadow:var(--shadow);
}
.empty-icon{
  width:52px;height:52px;margin:0 auto 18px;border-radius:16px;
  display:grid;place-items:center;
  border:1px solid rgba(34,227,165,.5);color:var(--primary);font-size:22px;font-weight:800;
  background:rgba(34,227,165,.08);
}
.empty-title{font-size:20px;font-weight:800;margin-bottom:20px;}

/* ---------- tag row ---------- */
.tag-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line-soft);
}
.tag-row .tag-label{font-size:13px;color:var(--dim);margin-right:2px;}
.tag{
  padding:6px 14px;border-radius:999px;font-size:13px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--muted);
  transition:border-color .2s,color .2s,background .2s;
}
.tag:hover{border-color:rgba(34,227,165,.4);color:#fff;background:rgba(34,227,165,.08);}
.back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:18px;}
@media(min-width:1024px){
  .sidebar{position:sticky;top:92px;}
}
.side-card{
  padding:20px;border-radius:var(--r-md);
  border:1px solid var(--line);background:var(--surface);
  box-shadow:var(--shadow);
}
.side-title{
  font-size:14px;font-weight:800;color:var(--primary);
  margin-bottom:14px;letter-spacing:.01em;
}
.side-list{display:flex;flex-direction:column;gap:2px;}
.side-list a{
  display:flex;align-items:center;gap:8px;
  padding:9px 10px;border-radius:10px;
  font-size:14px;color:var(--muted);
  transition:background .2s,color .2s,transform .2s var(--ease);
}
.side-list a::before{
  content:"";width:5px;height:5px;border-radius:2px;background:rgba(34,227,165,.5);flex-shrink:0;
}
.side-list a:hover{background:rgba(255,255,255,.04);color:#fff;transform:translateX(2px);}
.side-cta{
  position:relative;overflow:hidden;
  padding:22px;border-radius:var(--r-md);
  border:1px solid rgba(34,227,165,.3);
  background:linear-gradient(150deg,#0B1220,rgba(34,227,165,.13));
}
.side-cta::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,227,165,.28),transparent 68%);
}
.side-cta>*{position:relative;z-index:1;}
.side-cta-title{font-size:16px;font-weight:800;line-height:1.5;margin-bottom:8px;}
.side-cta-text{font-size:13px;color:var(--muted);line-height:1.8;margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* ---------- sections ---------- */
.section-pad{padding:64px 0;}
@media(min-width:1024px){.section-pad{padding:88px 0;}}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;flex-wrap:wrap;margin-bottom:28px;
}
.sec-title{
  position:relative;font-size:clamp(21px,2.6vw,28px);font-weight:800;letter-spacing:-.01em;
  line-height:1.3;
}
.sec-title .num{
  display:inline-block;margin-right:10px;color:var(--primary);
  font-variant-numeric:tabular-nums;font-weight:900;
}
.sec-sub{font-size:14px;color:var(--dim);margin-top:8px;max-width:640px;}

/* ---------- related cards ---------- */
.post-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-md);border:1px solid var(--line);
  background:var(--surface);box-shadow:var(--shadow);
  transition:transform .25s var(--ease),border-color .25s,box-shadow .25s;
}
.post-card:hover{
  transform:translateY(-4px);
  border-color:rgba(34,227,165,.32);
  box-shadow:0 16px 44px -18px rgba(34,227,165,.42);
}
.post-thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(135deg,#0B1220,#13233A 60%,#0E2A24);
  border-bottom:1px solid var(--line-soft);
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.post-thumb img.is-hidden{display:none;}
.post-card:hover .post-thumb img{transform:scale(1.05);}
.post-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 20px;flex:1;}
.post-title{
  font-size:17px;font-weight:700;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-desc{
  font-size:13.5px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12px;color:var(--dim);font-variant-numeric:tabular-nums;
}
.post-foot .arrow{color:var(--primary);font-weight:700;transition:transform .2s var(--ease);}
.post-card:hover .post-foot .arrow{transform:translateX(4px);}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:24px;border:1px solid rgba(34,227,165,.24);
  background:linear-gradient(120deg,#0B1220 0%,#0E1A24 52%,rgba(34,227,165,.14) 100%);
  padding:32px 24px;
  display:grid;gap:22px;
  box-shadow:var(--shadow);
}
@media(min-width:768px){
  .cta-band{grid-template-columns:1fr auto;align-items:center;padding:44px 40px;}
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,227,165,.24),transparent 66%);
  pointer-events:none;
}
.cta-band>*{position:relative;z-index:1;}
.cta-title{font-size:clamp(20px,2.4vw,26px);font-weight:800;line-height:1.35;margin-bottom:10px;}
.cta-text{font-size:14px;color:var(--muted);line-height:1.85;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:24px;padding:56px 0 24px;
  border-top:1px solid rgba(255,255,255,.07);
  background:#05080F;
}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand .brand-text{font-size:15px;}
.foot-col h4{font-size:14px;font-weight:800;color:var(--primary);margin-bottom:14px;}
.foot-col p{font-size:13px;color:var(--dim);line-height:1.85;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col ul a{font-size:14px;color:var(--muted);transition:color .2s;}
.foot-col ul a:hover{color:var(--primary);}
.foot-bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.07);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--dim);
}
.to-top{
  padding:7px 16px;border-radius:999px;border:1px solid var(--line);
  font-size:12px;color:var(--muted);transition:color .2s,border-color .2s,transform .2s var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(34,227,165,.4);transform:translateY(-2px);}

@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --bg:#070B14;
  --bg-2:#0B1220;
  --surface:rgba(255,255,255,.06);
  --surface-2:rgba(255,255,255,.03);
  --border:rgba(255,255,255,.10);
  --border-soft:rgba(255,255,255,.06);
  --primary:#22E3A5;
  --secondary:#FF7A3D;
  --text:#E8EEF7;
  --muted:#A9B7C9;
  --weak:#6E7F96;
  --radius-lg:24px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 40px -12px rgba(0,0,0,.8);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 500px at 12% -8%, rgba(34,227,165,.13), transparent 62%),
    radial-gradient(760px 460px at 92% 4%, rgba(255,122,61,.09), transparent 60%);
  background-repeat:no-repeat;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea{font-family:inherit}
::selection{background:rgba(34,227,165,.32);color:#fff}
::focus-visible{outline:2px solid rgba(34,227,165,.7);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media(min-width:768px){.container{padding:0 32px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,11,20,.86);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,rgba(34,227,165,.55),rgba(34,227,165,.06) 58%,transparent);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(140deg,#22E3A5,#12b98a);
  color:#04120c;
  font-weight:800;
  font-size:17px;
  box-shadow:0 6px 20px -8px rgba(34,227,165,.8);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:#fff;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:10px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--muted);
  border-radius:999px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-link.active{
  color:var(--primary);
  background:rgba(34,227,165,.10);
  font-weight:700;
}
.nav-link.active::before{
  content:"";
  position:absolute;
  left:3px;top:50%;
  width:4px;height:4px;
  border-radius:50%;
  transform:translateY(-50%);
  background:var(--primary);
  box-shadow:0 0 10px var(--primary);
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(34,227,165,0));
  box-shadow:0 0 12px rgba(34,227,165,.8);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 22px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.btn-neon{
  background:linear-gradient(135deg,#22E3A5,#15c58f);
  color:#04120c;
  box-shadow:inset 0 0 0 1px rgba(34,227,165,.5),0 6px 24px -8px rgba(34,227,165,.55);
}
.btn-neon:hover{
  transform:translateY(-2px);
  box-shadow:inset 0 0 0 1px rgba(34,227,165,.7),0 10px 34px -6px rgba(34,227,165,.7);
}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border:1px solid var(--border);
  color:var(--text);
}
.btn-ghost:hover{
  transform:translateY(-2px);
  border-color:rgba(34,227,165,.55);
  color:#fff;
  background:rgba(34,227,165,.08);
}
.burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid rgba(34,227,165,.45);
  place-items:center;
}
.burger span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--primary);
  position:relative;
}
.burger span::before,
.burger span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--primary);
}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:rgba(5,8,14,.97);
  backdrop-filter:blur(14px);
  display:none;
  flex-direction:column;
  padding:24px 20px 32px;
}
.mobile-drawer.open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer-close{
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--border);
  display:grid;place-items:center;
  color:var(--primary);
  font-size:20px;
}
.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 4px;
  font-size:18px;
  font-weight:600;
  color:var(--muted);
  border-bottom:1px solid var(--border-soft);
  opacity:0;
  transform:translateY(8px);
  animation:drawerIn .3s var(--ease) forwards;
}
.drawer-link.active{color:var(--primary)}
.drawer-link:nth-child(1){animation-delay:.03s}
.drawer-link:nth-child(2){animation-delay:.06s}
.drawer-link:nth-child(3){animation-delay:.09s}
.drawer-link:nth-child(4){animation-delay:.12s}
@keyframes drawerIn{to{opacity:1;transform:translateY(0)}}
.drawer-foot{margin-top:auto;padding-top:24px;font-size:13px;color:var(--weak)}

@media(max-width:1023px){
  .main-nav{display:none}
  .nav-cta{display:none}
  .burger{display:grid}
}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--weak);
  padding:26px 0 0;
}
.crumb a{color:var(--muted);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:rgba(255,255,255,.22)}

/* ============ 分类 Hero（小尺寸） ============ */
.cat-hero{padding:28px 0 64px}
.cat-hero-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:36px;
  align-items:center;
}
@media(min-width:1024px){
  .cat-hero-grid{grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:56px}
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:999px;
  background:rgba(34,227,165,.10);
  border:1px solid rgba(34,227,165,.32);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}
.hero-badge i{
  width:6px;height:6px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px var(--primary);
  display:block;
}
.hero-title{
  margin:20px 0 0;
  font-size:clamp(28px,4.4vw,46px);
  font-weight:800;
  line-height:1.16;
  letter-spacing:-.02em;
}
.hero-title .hl{
  color:var(--primary);
  box-shadow:inset 0 -8px 0 rgba(34,227,165,.14);
}
.hero-sub{
  margin:18px 0 0;
  font-size:16px;
  line-height:1.85;
  color:var(--muted);
  max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.trust-row{
  display:flex;
  flex-wrap:wrap;
  gap:14px 26px;
  margin-top:30px;
  padding-top:22px;
  border-top:1px solid var(--border-soft);
}
.trust-item{
  display:flex;
  align-items:center;
  gap:9px;
  font-size:13px;
  color:var(--muted);
}
.trust-dot{
  width:22px;height:22px;
  border-radius:8px;
  display:grid;place-items:center;
  background:rgba(34,227,165,.12);
  color:var(--primary);
  font-size:12px;
  font-weight:800;
  flex-shrink:0;
}
.hero-media{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow),0 0 60px -30px rgba(34,227,165,.4);
  aspect-ratio:4/3;
  background:linear-gradient(150deg,#111a2c,#0a1120);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,0) 45%,rgba(7,11,20,.72));
}
.media-tag{
  position:absolute;
  left:18px;top:18px;
  z-index:2;
  padding:6px 13px;
  border-radius:999px;
  background:rgba(255,122,61,.16);
  border:1px solid rgba(255,122,61,.5);
  color:#FFB48C;
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
}
.media-caption{
  position:absolute;
  left:20px;right:20px;bottom:18px;
  z-index:2;
  font-size:14px;
  font-weight:600;
  color:#fff;
  text-shadow:0 2px 12px rgba(0,0,0,.7);
}
.img-fallback{
  background:linear-gradient(140deg,#101a2c,#0a1120 60%,#141f33)!important;
  position:relative;
}
.img-fallback::after{
  content:"昂";
  position:absolute;
  inset:0;
  display:grid;
  place-items:center;
  font-size:34px;
  font-weight:800;
  color:rgba(34,227,165,.35);
}

/* ============ 布局：左栏 sticky + 右栏长列表 ============ */
.layout{
  display:grid;
  grid-template-columns:1fr;
  gap:40px;
  padding-bottom:24px;
}
@media(min-width:1024px){
  .layout{grid-template-columns:300px minmax(0,1fr);gap:56px}
}
.aside-sticky{position:relative}
@media(min-width:1024px){
  .aside-sticky{position:sticky;top:96px}
}
.aside-card{
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  background:var(--surface);
  backdrop-filter:blur(14px);
  padding:24px;
  box-shadow:var(--shadow);
}
.aside-num{
  font-size:44px;
  font-weight:900;
  line-height:1;
  color:rgba(34,227,165,.18);
  letter-spacing:-.04em;
}
.aside-title{
  margin:10px 0 6px;
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
}
.aside-desc{font-size:13px;color:var(--weak);line-height:1.8;margin:0 0 18px}
.anchor-list{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.anchor-list a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:11px 12px;
  border-radius:var(--radius-sm);
  font-size:14px;
  color:var(--muted);
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.anchor-list a::before{
  content:"";
  width:5px;height:5px;
  border-radius:2px;
  background:rgba(34,227,165,.5);
  flex-shrink:0;
}
.anchor-list a:hover{
  background:rgba(255,255,255,.05);
  color:#fff;
  transform:translateX(3px);
}
.aside-note{
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--border-soft);
  font-size:12.5px;
  line-height:1.8;
  color:var(--weak);
}

/* 右栏图文行 */
.section-head{margin-bottom:26px}
.sec-num{
  display:inline-block;
  font-size:13px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--primary);
  margin-bottom:10px;
}
.sec-title{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:clamp(22px,3vw,30px);
  font-weight:800;
  letter-spacing:-.02em;
  margin:0;
}
.sec-title::before{
  content:"";
  width:3px;
  height:26px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary),rgba(34,227,165,.15));
  box-shadow:0 0 14px rgba(34,227,165,.6);
  flex-shrink:0;
}
.sec-lead{
  margin:14px 0 0;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
  max-width:720px;
}
.flow-list{border-top:1px solid var(--border-soft)}
.flow-item{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
  padding:26px 16px 26px 0;
  border-bottom:1px solid var(--border-soft);
  transition:background .25s var(--ease);
  border-radius:var(--radius-sm);
}
@media(min-width:640px){
  .flow-item{grid-template-columns:112px minmax(0,1fr);gap:22px;padding:28px 20px}
}
.flow-item:hover{background:rgba(255,255,255,.03)}
.flow-thumb{
  position:relative;
  border-radius:var(--radius-sm);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  aspect-ratio:16/10;
  background:linear-gradient(140deg,#101a2c,#0a1120);
}
@media(min-width:640px){
  .flow-thumb{aspect-ratio:1/1;height:112px}
}
.flow-thumb img{width:100%;height:100%;object-fit:cover}
.flow-index{
  font-size:12px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--secondary);
}
.flow-title{
  margin:6px 0 0;
  font-size:18px;
  font-weight:700;
  line-height:1.45;
}
@media(min-width:1024px){
  .flow-title{font-size:19px}
}
.flow-text{
  margin:10px 0 0;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}
.flow-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 11px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  border:1px solid rgba(34,227,165,.38);
  color:#7BF0C8;
  background:rgba(34,227,165,.08);
}
.tag-orange{
  border-color:rgba(255,122,61,.42);
  color:#FFB48C;
  background:rgba(255,122,61,.09);
}
.tag-mute{
  border-color:var(--border);
  color:var(--muted);
  background:rgba(255,255,255,.03);
}

/* ============ 窄条相关入口 ============ */
.strip-section{padding:8px 0 8px}
.strip-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
}
@media(min-width:640px){.strip-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.strip-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.strip-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:18px 20px;
  border-radius:var(--radius);
  border:1px solid var(--border);
  background:var(--surface-2);
  min-height:44px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.strip-card:hover{
  transform:translateY(-3px);
  border-color:rgba(34,227,165,.45);
  background:rgba(34,227,165,.06);
}
.strip-card strong{font-size:15px;font-weight:700;display:block}
.strip-card span{font-size:12px;color:var(--weak)}
.strip-arrow{color:var(--primary);font-size:16px;flex-shrink:0}

/* ============ CTA ============ */
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid rgba(34,227,165,.28);
  background:linear-gradient(120deg,rgba(34,227,165,.13),rgba(11,18,32,.9) 46%,rgba(255,122,61,.10));
  padding:34px 26px;
  display:grid;
  gap:26px;
  align-items:center;
}
@media(min-width:768px){
  .cta-card{padding:44px 44px;grid-template-columns:minmax(0,1fr) auto;gap:40px}
}
.cta-card::before{
  content:"";
  position:absolute;
  width:320px;height:320px;
  left:-120px;top:-140px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(34,227,165,.28),transparent 68%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{
  margin:0;
  font-size:clamp(22px,3.2vw,32px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.25;
}
.cta-copy p{margin:12px 0 0;font-size:15px;color:var(--muted);line-height:1.85;max-width:620px}
.cta-actions{
  position:relative;
  z-index:1;
  display:flex;
  flex-direction:column;
  gap:10px;
  align-items:stretch;
}
@media(min-width:768px){.cta-actions{align-items:flex-end}}
.cta-hint{font-size:12px;color:var(--weak);text-align:center}
@media(min-width:768px){.cta-hint{text-align:right}}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px}
.faq-item{
  border-radius:var(--radius);
  border:1px solid var(--border);
  background:var(--surface);
  backdrop-filter:blur(12px);
  overflow:hidden;
  transition:border-color .22s var(--ease);
}
.faq-item.open{border-color:rgba(34,227,165,.42)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:12px;
  padding:18px 20px;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  min-height:44px;
}
.faq-mark{
  width:24px;height:24px;
  flex-shrink:0;
  border-radius:8px;
  display:grid;place-items:center;
  background:rgba(34,227,165,.12);
  color:var(--primary);
  font-size:13px;
  font-weight:800;
}
.faq-arrow{
  margin-left:auto;
  color:var(--weak);
  font-size:13px;
  transition:transform .2s var(--ease),color .2s var(--ease);
  flex-shrink:0;
}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--primary)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a-inner{
  padding:0 20px 20px 56px;
  font-size:14.5px;
  line-height:1.9;
  color:var(--muted);
}
@media(max-width:520px){
  .faq-a-inner{padding:0 18px 18px 18px}
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--border-soft);
  background:linear-gradient(180deg,rgba(11,18,32,.55),rgba(7,11,20,.9));
  padding:64px 0 28px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:34px;
}
@media(min-width:640px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-col p{font-size:13.5px;line-height:1.9;color:var(--weak);margin:0;max-width:340px}
.foot-col h4{
  margin:0 0 16px;
  font-size:14px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:.02em;
}
.foot-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.foot-col ul a{
  font-size:14px;
  color:var(--muted);
  transition:color .2s var(--ease),transform .2s var(--ease);
  display:inline-block;
}
.foot-col ul a:hover{color:var(--primary);transform:translateX(3px)}
.foot-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--border-soft);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  font-size:12px;
  color:var(--weak);
}
.to-top{
  padding:9px 16px;
  border-radius:999px;
  border:1px solid var(--border);
  color:var(--muted);
  font-size:12.5px;
  min-height:40px;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.to-top:hover{border-color:rgba(34,227,165,.5);color:var(--primary);transform:translateY(-2px)}

/* 入场动画 */
.reveal{opacity:0;transform:translateY(10px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .btn:hover,.strip-card:hover,.anchor-list a:hover{transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --bg:#070B14;
  --bg-2:#0B1220;
  --surface:rgba(255,255,255,.06);
  --surface-2:rgba(255,255,255,.03);
  --line:rgba(255,255,255,.10);
  --primary:#22E3A5;
  --secondary:#FF7A3D;
  --text:#E8EEF7;
  --muted:#A9B7C9;
  --dim:#6E7F96;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 8px 40px -12px rgba(0,0,0,.8);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;}
@media(min-width:768px){.container{padding:0 32px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,11,20,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(34,227,165,.55),rgba(34,227,165,.05) 60%,rgba(255,122,61,.25)) 1;
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:17px;color:#04170F;
  background:linear-gradient(135deg,#22E3A5,#12B583);
  box-shadow:0 0 0 1px rgba(34,227,165,.5),0 6px 22px -8px rgba(34,227,165,.7);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:#fff;white-space:nowrap;}
.main-nav{display:none;align-items:center;gap:6px;}
@media(min-width:1024px){.main-nav{display:flex;}}
.nav-link{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:15px;color:var(--muted);transition:color .22s var(--ease),background .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.04);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--primary);background:rgba(34,227,165,.08);}
.nav-link.active::after{transform:scaleX(1);box-shadow:0 0 12px rgba(34,227,165,.8);}
.nav-link.active::before{
  content:"";position:absolute;left:4px;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn-neon{
  color:#04170F;background:linear-gradient(135deg,#22E3A5,#19C88F);
  box-shadow:0 0 0 1px rgba(34,227,165,.5) inset,0 6px 24px -8px rgba(34,227,165,.55);
}
.btn-neon:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(34,227,165,.7) inset,0 10px 34px -6px rgba(34,227,165,.7);}
.btn-ghost{
  color:var(--text);background:var(--surface);border-color:var(--line);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:rgba(34,227,165,.45);color:#fff;transform:translateY(-2px);}
.nav-cta{display:none;}
@media(min-width:1024px){.nav-cta{display:inline-flex;padding:10px 20px;font-size:14px;}}
.burger{
  width:44px;height:44px;border-radius:12px;background:var(--surface);
  border:1px solid rgba(34,227,165,.35);display:flex;align-items:center;justify-content:center;
}
@media(min-width:1024px){.burger{display:none;}}
.burger span{width:18px;height:2px;background:var(--primary);position:relative;border-radius:2px;display:block;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary);border-radius:2px;transition:transform .2s var(--ease);
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.mobile-drawer{
  position:fixed;inset:0;z-index:80;background:rgba(7,11,20,.97);
  backdrop-filter:blur(16px);display:none;flex-direction:column;padding:22px 20px 32px;
}
.mobile-drawer.open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;background:var(--surface);border:1px solid var(--line);
  color:var(--text);font-size:20px;line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:8px;}
.drawer-nav a{
  padding:15px 16px;border-radius:14px;font-size:17px;font-weight:600;color:var(--muted);
  background:var(--surface-2);border:1px solid rgba(255,255,255,.06);
  opacity:0;transform:translateY(8px);animation:drawerIn .3s var(--ease) forwards;
}
.drawer-nav a.active{color:var(--primary);border-color:rgba(34,227,165,.4);background:rgba(34,227,165,.08);}
@keyframes drawerIn{to{opacity:1;transform:translateY(0);}}
.drawer-foot{margin-top:auto;padding-top:24px;font-size:13px;color:var(--dim);}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--dim);}
.crumb a{color:var(--muted);transition:color .2s var(--ease);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{margin:0 8px;color:rgba(255,255,255,.2);}
.crumb .cur{color:var(--primary);}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;padding:44px 0 56px;overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 420px at 50% -10%,rgba(34,227,165,.16),transparent 62%),
    radial-gradient(600px 300px at 88% 12%,rgba(255,122,61,.10),transparent 65%),
    linear-gradient(180deg,#070B14,#0B1220);
}
.cat-hero-bg{
  position:absolute;inset:0;opacity:.16;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;filter:saturate(.7);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:22px 22px;opacity:.35;mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
}
.cat-hero .container{position:relative;z-index:2;text-align:center;}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--primary);
  background:rgba(34,227,165,.10);border:1px solid rgba(34,227,165,.32);
}
.chip .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);}
.cat-hero h1{
  margin:20px auto 0;max-width:900px;
  font-size:clamp(30px,5vw,52px);font-weight:800;letter-spacing:-.02em;line-height:1.15;
}
.cat-hero h1 em{font-style:normal;color:var(--primary);}
.cat-hero .lead{
  margin:18px auto 0;max-width:720px;font-size:16px;line-height:1.9;color:var(--muted);
}
.hero-underline{
  display:block;width:76px;height:3px;border-radius:3px;margin:26px auto 0;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
}
.sum-grid{display:grid;gap:14px;margin-top:38px;grid-template-columns:1fr;}
@media(min-width:768px){.sum-grid{grid-template-columns:repeat(3,1fr);}}
.sum-card{
  text-align:left;padding:20px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  backdrop-filter:blur(12px);box-shadow:var(--shadow);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.sum-card:hover{transform:translateY(-3px);border-color:rgba(34,227,165,.35);}
.sum-card .num{
  font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--secondary);
}
.sum-card h3{font-size:17px;font-weight:700;margin-top:10px;}
.sum-card p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--muted);}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0;}
@media(min-width:1024px){.section{padding:96px 0;}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap;}
.sec-title{font-size:clamp(23px,3vw,30px);font-weight:800;display:flex;align-items:center;gap:12px;}
.sec-title .bar{width:4px;height:26px;border-radius:3px;background:linear-gradient(180deg,var(--primary),rgba(34,227,165,.15));}
.sec-sub{margin-top:10px;font-size:14px;color:var(--dim);max-width:620px;}
.link-more{font-size:14px;font-weight:700;color:var(--primary);display:inline-flex;align-items:center;gap:6px;transition:gap .2s var(--ease);}
.link-more:hover{gap:11px;}

/* ---------- 非对称网格 ---------- */
.asym{display:grid;gap:16px;grid-template-columns:1fr;}
@media(min-width:1024px){.asym{grid-template-columns:repeat(4,1fr);}}
.card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .26s var(--ease),border-color .26s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(34,227,165,.32);}
.card-media{
  position:relative;aspect-ratio:16/10;
  background:linear-gradient(140deg,#101A2C,#0A1020 60%,#152238);
  overflow:hidden;
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card:hover .card-media img{transform:scale(1.05);}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,0) 35%,rgba(7,11,20,.78));
}
.tag{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
  font-size:12px;font-weight:700;border:1px solid rgba(34,227,165,.42);color:var(--primary);
  background:rgba(34,227,165,.08);
}
.tag-warn{border-color:rgba(255,122,61,.45);color:var(--secondary);background:rgba(255,122,61,.10);}
.card-body{padding:20px;}
.card-body h3{font-size:18px;font-weight:700;line-height:1.45;}
.card-body p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--muted);}
.card-body ul{margin-top:12px;display:flex;flex-direction:column;gap:8px;}
.card-body ul li{position:relative;padding-left:16px;font-size:14px;color:var(--muted);line-height:1.7;}
.card-body ul li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--primary);
}
.feat{background:linear-gradient(160deg,rgba(34,227,165,.09),rgba(255,255,255,.04) 42%,rgba(255,122,61,.07));}
@media(min-width:1024px){
  .feat{grid-column:span 2;grid-row:span 2;}
  .feat .card-media{aspect-ratio:16/9;}
  .feat .card-body h3{font-size:23px;}
  .feat .card-body p{font-size:15px;}
}
.mini .card-media{aspect-ratio:16/9;}
.mini .card-body{padding:16px;}
.mini .card-body h3{font-size:16px;}
.mini .card-body p{font-size:13.5px;margin-top:8px;}

/* ---------- 要点对比栅格 ---------- */
.cmp{
  border-radius:var(--r-lg);border:1px solid var(--line);overflow:hidden;
  background:var(--surface-2);box-shadow:var(--shadow);
}
.cmp-row-head{
  display:none;
}
@media(min-width:900px){
  .cmp-row-head{
    display:grid;grid-template-columns:1.1fr 1fr 1.2fr 1fr;gap:0;
    background:linear-gradient(90deg,rgba(34,227,165,.14),rgba(255,122,61,.08));
    border-bottom:1px solid var(--line);
  }
  .cmp-row-head div{padding:15px 20px;font-size:13px;font-weight:800;color:var(--primary);letter-spacing:.04em;}
}
.cmp-row{
  display:grid;grid-template-columns:1fr;gap:0;
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .22s var(--ease);
}
.cmp-row:last-child{border-bottom:none;}
.cmp-row:hover{background:rgba(255,255,255,.03);}
@media(min-width:900px){
  .cmp-row{grid-template-columns:1.1fr 1fr 1.2fr 1fr;}
}
.cmp-cell{padding:14px 20px;font-size:14px;line-height:1.75;color:var(--muted);border-bottom:1px dashed rgba(255,255,255,.06);}
.cmp-row .cmp-cell:last-child{border-bottom:none;}
@media(min-width:900px){
  .cmp-cell{border-bottom:none;}
}
.cmp-cell:first-child{color:var(--text);font-weight:700;font-size:14.5px;}
@media(max-width:899px){
  .cmp-cell::before{
    content:attr(data-label);display:block;font-size:12px;font-weight:800;color:var(--secondary);
    letter-spacing:.08em;margin-bottom:5px;
  }
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);
  backdrop-filter:blur(10px);overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item.open{border-color:rgba(34,227,165,.42);box-shadow:0 0 0 1px rgba(34,227,165,.12);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:17px 20px;background:transparent;border:none;color:var(--text);
  font-size:16px;font-weight:700;
}
.faq-q .faq-mark{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:var(--primary);background:rgba(34,227,165,.12);
  border:1px solid rgba(34,227,165,.32);
}
.faq-q .arrow{margin-left:auto;color:var(--primary);font-size:13px;transition:transform .2s var(--ease);}
.faq-item.open .arrow{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a-inner{padding:0 20px 20px 60px;font-size:14.5px;line-height:1.85;color:var(--muted);}

/* ---------- CTA ---------- */
.cta-box{
  position:relative;border-radius:24px;overflow:hidden;
  border:1px solid rgba(34,227,165,.28);
  background:linear-gradient(115deg,rgba(34,227,165,.14),rgba(11,18,32,.9) 46%,rgba(255,122,61,.12));
  box-shadow:0 20px 70px -30px rgba(34,227,165,.5);
  padding:32px 24px;
}
@media(min-width:900px){.cta-box{padding:44px 46px;}}
.cta-inner{display:flex;flex-direction:column;gap:26px;align-items:flex-start;}
@media(min-width:900px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;}}
.cta-box h3{font-size:clamp(21px,3vw,28px);font-weight:800;}
.cta-box p{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--muted);max-width:620px;}
.cta-actions{display:flex;flex-direction:column;gap:10px;align-items:flex-start;}
.cta-note{font-size:12px;color:var(--dim);}

/* ---------- 相关分类互链 ---------- */
.rel-grid{display:grid;gap:16px;grid-template-columns:1fr;}
@media(min-width:768px){.rel-grid{grid-template-columns:1.35fr 1fr;}}
.rel-card{
  display:flex;gap:16px;align-items:center;padding:18px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  transition:transform .24s var(--ease),border-color .24s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(34,227,165,.35);}
.rel-thumb{
  width:96px;height:72px;flex-shrink:0;border-radius:12px;overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(140deg,#101A2C,#152238);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover;}
.rel-card h4{font-size:16px;font-weight:700;}
.rel-card p{margin-top:6px;font-size:13.5px;color:var(--muted);line-height:1.7;}
.rel-card .go{margin-left:auto;color:var(--primary);font-weight:800;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(34,227,165,.45),rgba(255,255,255,.06) 55%,rgba(255,122,61,.28)) 1;
  background:linear-gradient(180deg,#070B14,#040711);
  padding:56px 0 26px;
}
.foot-grid{display:grid;gap:32px;grid-template-columns:1fr;}
@media(min-width:768px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-col h4{font-size:14px;font-weight:800;color:var(--primary);margin-bottom:14px;letter-spacing:.04em;}
.foot-col p{font-size:13.5px;line-height:1.85;color:var(--dim);max-width:340px;}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col ul a{font-size:14px;color:var(--muted);transition:color .2s var(--ease),padding-left .2s var(--ease);}
.foot-col ul a:hover{color:var(--primary);padding-left:5px;}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.07);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--dim);
}
.to-top{
  background:var(--surface);border:1px solid var(--line);color:var(--muted);
  border-radius:999px;padding:9px 16px;font-size:12.5px;min-height:40px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.to-top:hover{color:var(--primary);border-color:rgba(34,227,165,.4);}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}