/* roulang page: index */
:root{
  --bg-deep:#0F0A1E;
  --bg-deep-2:#191134;
  --surface:#FFFFFF;
  --surface-soft:#F6F3FF;
  --primary:#7B4DFF;
  --mint:#22D3C5;
  --grad-main:linear-gradient(120deg,#7B4DFF 0%,#22D3C5 100%);
  --accent:#FF8A3D;
  --badge:#FFD166;
  --badge-text:#2A1B00;
  --text-invert:#F5F2FF;
  --text-invert-soft:#B9B2D8;
  --text-strong:#14102A;
  --text-muted:#6B6588;
  --line-dark:rgba(123,77,255,.24);
  --line-light:rgba(20,16,42,.08);
  --r-lg:28px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-dark:0 18px 48px rgba(70,40,160,.45);
  --shadow-light:0 10px 30px rgba(24,16,60,.08);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:ui-monospace,"DIN Alternate","SFMono-Regular",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text-strong);
  background:var(--bg-deep);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;border-radius:6px;}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--accent);color:#2A1B00;padding:10px 18px;border-radius:0 0 12px 0;font-weight:700;
}
.skip-link:focus{left:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px;}}
.section{padding-top:clamp(56px,8vw,104px);padding-bottom:clamp(56px,8vw,104px);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:clamp(28px,4vw,44px);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--primary);text-transform:uppercase;
}
.eyebrow::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--grad-main);}
h1{font-size:clamp(30px,5vw,52px);font-weight:900;line-height:1.15;letter-spacing:-.02em;}
h2{font-size:clamp(24px,3.2vw,36px);font-weight:800;line-height:1.25;}
h3{font-size:20px;font-weight:700;line-height:1.4;}
.lead{font-size:clamp(16px,1.6vw,19px);line-height:1.85;color:var(--text-muted);}
.on-dark .lead,.on-dark p{color:var(--text-invert-soft);}
.on-dark h2,.on-dark h3,.on-dark h1{color:var(--text-invert);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-weight:700;font-size:15px;border:1.5px solid transparent;cursor:pointer;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background-color 220ms var(--ease),border-color 220ms var(--ease),color 220ms var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(0) scale(.985);}
.btn-accent{background:var(--accent);color:#2A1B00;box-shadow:0 10px 26px rgba(255,138,61,.32);}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,138,61,.42);}
.btn-grad{background:var(--grad-main);color:#FFFFFF;box-shadow:0 12px 32px rgba(123,77,255,.28);}
.btn-grad:hover{transform:translateY(-3px);box-shadow:0 0 0 1px rgba(123,77,255,.28),0 16px 40px rgba(123,77,255,.4);}
.btn-outline{border-color:rgba(245,242,255,.42);color:var(--text-invert);}
.btn-outline:hover{border-color:var(--mint);color:#FFFFFF;transform:translateY(-2px);}
.btn-outline-dark{border-color:rgba(20,16,42,.22);color:var(--text-strong);background:#FFFFFF;}
.btn-outline-dark:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--primary);font-size:14px;}
.link-arrow span{transition:transform 220ms var(--ease);}
.link-arrow:hover span{transform:translateX(4px);}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14px;color:var(--primary);}
.text-link span{transition:transform 220ms var(--ease);}
.text-link:hover span{transform:translateX(4px);}

/* ============ 标签 / 徽章 ============ */
.pill{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(123,77,255,.1);color:var(--primary);
  font-size:13px;font-weight:700;line-height:1.6;white-space:nowrap;
}
.pill-dark{background:rgba(123,77,255,.18);color:#CDBBFF;border:1px solid var(--line-dark);}
.badge-num{
  display:inline-flex;align-items:baseline;gap:4px;
  padding:8px 16px;border-radius:var(--r-pill);
  background:var(--badge);color:var(--badge-text);
  font-family:var(--font-num);font-size:16px;font-weight:800;letter-spacing:-.01em;line-height:1;
}
.badge-num em{font-style:normal;font-size:12px;font-weight:700;opacity:.72;}
.badge-soft{
  display:inline-flex;align-items:baseline;gap:4px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(245,242,255,.12);border:1px solid rgba(245,242,255,.2);
  color:var(--text-invert);font-family:var(--font-num);font-size:13px;font-weight:700;line-height:1.6;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  transition:background-color 300ms var(--ease),border-color 300ms var(--ease),box-shadow 300ms var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{
  background:rgba(15,10,30,.94);
  border-bottom-color:var(--line-dark);
  box-shadow:0 12px 32px rgba(8,4,20,.5);
}
.nav-shell{
  display:grid;grid-template-columns:1.35fr 1fr;align-items:center;
  height:64px;gap:20px;
  width:100%;max-width:1200px;margin:0 auto;padding:0 20px;
}
@media (min-width:1024px){.nav-shell{padding:0 32px;}}
.nav-left{display:flex;align-items:center;gap:clamp(16px,3vw,40px);min-width:0;}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:14px;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-main);
  box-shadow:0 0 0 1px rgba(123,77,255,.35),0 8px 20px rgba(123,77,255,.4);
  position:relative;flex-shrink:0;
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:0;height:0;border-left:9px solid #fff;border-top:6px solid transparent;border-bottom:6px solid transparent;margin-left:2px;
}
.brand-text{color:var(--text-invert);font-weight:900;font-size:17px;letter-spacing:-.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:8px;}
.nav-link{
  position:relative;padding:8px 14px;border-radius:var(--r-pill);
  color:var(--text-invert-soft);font-size:15px;font-weight:600;
  transition:color 220ms var(--ease),background-color 220ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad-main);transform:scaleX(0);transform-origin:left;transition:transform 240ms var(--ease);
}
.nav-link:hover{color:#FFFFFF;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{background:rgba(123,77,255,.22);color:#FFFFFF;}
.nav-link.is-active::after{transform:scaleX(0);}
.nav-search{display:flex;align-items:center;gap:0;background:rgba(245,242,255,.08);border:1px solid var(--line-dark);border-radius:var(--r-pill);padding:4px 4px 4px 16px;height:42px;}
.nav-search input{
  background:transparent;border:0;outline:none;width:132px;color:var(--text-invert);font-size:14px;
}
.nav-search input::placeholder{color:rgba(185,178,216,.75);}
.search-btn{
  border:0;background:rgba(123,77,255,.35);color:#FFFFFF;font-size:13px;font-weight:700;
  height:32px;padding:0 14px;border-radius:var(--r-pill);cursor:pointer;transition:background-color 220ms var(--ease);
}
.search-btn:hover{background:var(--primary);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-dark);
  background:rgba(245,242,255,.06);cursor:pointer;position:relative;
}
.nav-toggle span{
  position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:var(--text-invert);
  transition:transform 240ms var(--ease),opacity 200ms var(--ease);
}
.nav-toggle span:nth-child(1){top:14px;}
.nav-toggle span:nth-child(2){top:20px;}
.nav-toggle span:nth-child(3){top:26px;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-drawer{
  display:none;background:rgba(15,10,30,.98);border-top:1px solid var(--line-dark);
  padding:14px 20px 22px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:block;padding:13px 4px;color:var(--text-invert);font-weight:600;
  border-bottom:1px solid rgba(245,242,255,.08);opacity:0;animation:fadeUp 320ms var(--ease) forwards;
}
.nav-drawer a:nth-child(2){animation-delay:60ms;}
.nav-drawer a:nth-child(3){animation-delay:120ms;}
.nav-drawer .btn{margin-top:16px;width:100%;}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:none;}}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:block;}
  .nav-shell{grid-template-columns:1fr auto;height:56px;}
}
@media (max-width:640px){
  .brand-text{font-size:15px;}
  .brand-mark{width:28px;height:28px;}
}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;background:var(--bg-deep);
  padding-top:calc(64px + clamp(24px,5vw,64px));
  padding-bottom:clamp(48px,7vw,96px);
  min-height:clamp(560px,78vh,820px);
  display:flex;align-items:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  opacity:.16;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 540px at 76% 16%,rgba(123,77,255,.48),transparent 62%),
    radial-gradient(620px 420px at 12% 88%,rgba(34,211,197,.22),transparent 68%),
    linear-gradient(180deg,rgba(15,10,30,.45) 0%,rgba(15,10,30,.9) 70%,#0F0A1E 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.35fr 1fr;gap:clamp(28px,4vw,56px);
  align-items:center;width:100%;
}
.hero-copy{max-width:620px;}
.hero h1{color:var(--text-invert);margin:18px 0 0;}
.hero h1 .hl{
  background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:20px;font-size:clamp(16px,1.7vw,19px);line-height:1.8;color:var(--text-invert-soft);max-width:540px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;}
.hero-trust{margin-top:20px;font-size:14px;color:rgba(185,178,216,.85);}
.hero-visual{position:relative;display:flex;justify-content:center;padding:34px 26px;}
.phone-card{
  position:relative;width:100%;max-width:340px;aspect-ratio:9/16;
  border-radius:var(--r-lg);overflow:hidden;
  transform:rotate(-1.5deg);
  box-shadow:var(--shadow-dark),0 0 0 1px rgba(123,77,255,.35);
  background:var(--bg-deep-2);
}
.phone-card img{width:100%;height:100%;object-fit:cover;}
.phone-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,10,30,0) 34%,rgba(15,10,30,.88) 100%);
}
.phone-meta{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:3;
}
.phone-meta h3{color:#FFFFFF;font-size:17px;margin-bottom:8px;}
.phone-meta .row{display:flex;flex-wrap:wrap;gap:8px;}
.float-badge{
  position:absolute;z-index:4;box-shadow:0 16px 38px rgba(20,8,60,.55);
}
.float-badge.tl{left:0;top:12%;}
.float-badge.br{right:0;bottom:16%;}
@media (max-width:1023px){
  .hero-inner{grid-template-columns:1fr;}
  .hero-copy{max-width:none;}
  .hero-visual{order:2;padding:12px 18px 0;}
  .phone-card{max-width:300px;transform:none;margin:0 auto;}
  .float-badge.tl{left:-6px;top:4%;}
  .float-badge.br{right:-6px;bottom:6%;}
}

/* ============ 横向滚动条 ============ */
.reel-section{background:var(--surface-soft);}
.reel-wrap{position:relative;}
.reel{
  display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 20px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.reel::-webkit-scrollbar{display:none;}
.reel-card{
  flex:0 0 224px;scroll-snap-align:start;
  background:#FFFFFF;border-radius:20px;padding:10px;
  border:1px solid var(--line-light);box-shadow:var(--shadow-light);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.reel-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(24,16,60,.14);}
.reel-thumb{
  position:relative;border-radius:14px;overflow:hidden;aspect-ratio:9/16;background:var(--bg-deep-2);
}
.reel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.reel-card:hover .reel-thumb img{transform:scale(1.04);}
.reel-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,10,30,.32) 0%,rgba(15,10,30,0) 42%);}
.reel-tag{
  position:absolute;left:10px;top:10px;z-index:2;
  padding:4px 10px;border-radius:var(--r-pill);
  background:rgba(15,10,30,.66);color:#FFFFFF;font-size:12px;font-weight:700;
}
.reel-plays{
  position:absolute;right:10px;top:10px;z-index:2;
  padding:4px 9px;border-radius:var(--r-pill);
  background:var(--badge);color:var(--badge-text);
  font-family:var(--font-num);font-size:12px;font-weight:800;
}
.reel-body{padding:12px 6px 6px;}
.reel-body h3{
  font-size:15px;line-height:1.5;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.reel-body .pill{margin-top:10px;}
.reel-nav{display:flex;gap:10px;}
.reel-arrow{
  width:42px;height:42px;border-radius:var(--r-pill);border:1.5px solid rgba(20,16,42,.16);
  background:#FFFFFF;cursor:pointer;font-size:17px;font-weight:700;color:var(--text-strong);
  transition:border-color 220ms var(--ease),color 220ms var(--ease),transform 220ms var(--ease);
}
.reel-arrow:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
@media (max-width:767px){.reel-nav{display:none;}}

/* ============ 种草清单 ============ */
.list-stack{display:flex;flex-direction:column;gap:18px;}
.list-row{
  display:grid;grid-template-columns:96px 132px 1fr auto;gap:24px;align-items:center;
  background:#FFFFFF;border:1px solid var(--line-light);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow-light);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.list-row:hover{transform:translateY(-3px);border-color:rgba(123,77,255,.35);box-shadow:0 18px 44px rgba(24,16,60,.13);}
.list-row--tall{padding:34px 24px;}
.list-index{
  font-family:var(--font-num);font-size:60px;font-weight:900;line-height:1;
  background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.list-thumb{border-radius:14px;overflow:hidden;aspect-ratio:4/3;background:var(--bg-deep-2);}
.list-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.list-row:hover .list-thumb img{transform:scale(1.04);}
.list-main h3{margin-bottom:8px;}
.list-main p{
  color:var(--text-muted);font-size:15px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.list-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
@media (max-width:1023px){
  .list-row{grid-template-columns:72px 108px 1fr;gap:18px;}
  .list-row .cell-cta{grid-column:1/-1;}
  .list-index{font-size:48px;}
}
@media (max-width:767px){
  .list-row{grid-template-columns:56px 1fr;gap:14px;padding:20px 18px;}
  .list-thumb{display:none;}
  .list-index{font-size:40px;}
  .list-row--tall{padding:24px 18px;}
}

/* ============ CMS 资讯列表 ============ */
.cms-section{background:var(--surface-soft);}
.cms-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.cms-card{
  background:#FFFFFF;border-radius:var(--r-md);padding:24px;
  border:1px solid var(--line-light);box-shadow:var(--shadow-light);
  display:flex;flex-direction:column;gap:12px;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.cms-card:hover{transform:translateY(-3px);box-shadow:0 18px 44px rgba(24,16,60,.13);border-color:rgba(123,77,255,.3);}
.cms-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.cms-time{font-family:var(--font-num);font-size:13px;color:var(--text-muted);font-weight:600;}
.cms-card h3{font-size:18px;line-height:1.5;}
.cms-card h3 a{transition:color 200ms var(--ease);}
.cms-card h3 a:hover{color:var(--primary);}
.cms-card p{
  color:var(--text-muted);font-size:15px;line-height:1.75;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.empty-state{
  border:1.5px dashed rgba(20,16,42,.18);border-radius:var(--r-md);
  background:#FFFFFF;padding:44px 24px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:16px;
}
.empty-state p{color:var(--text-muted);font-size:15px;}
@media (max-width:767px){.cms-grid{grid-template-columns:1fr;}}

/* ============ 口碑条 ============ */
.voices{background:var(--bg-deep);position:relative;overflow:hidden;}
.voices::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-3.png);
  background-size:cover;background-position:center;opacity:.12;
}
.voices .container{position:relative;z-index:2;}
.marquee{overflow:hidden;position:relative;padding:6px 0;}
.marquee-track{display:flex;gap:16px;width:max-content;animation:slideLeft 44s linear infinite;}
.marquee-track--reverse{animation:slideRight 50s linear infinite;}
.marquee:hover .marquee-track{animation-play-state:paused;}
@keyframes slideLeft{from{transform:translateX(0);}to{transform:translateX(-50%);}}
@keyframes slideRight{from{transform:translateX(-50%);}to{transform:translateX(0);}}
.voice-card{
  flex:0 0 320px;width:320px;
  display:flex;gap:14px;padding:18px;
  border-radius:var(--r-md);
  background:rgba(25,17,52,.72);
  border:1px solid var(--line-dark);
}
.voice-avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  background:var(--grad-main);display:flex;align-items:center;justify-content:center;
  color:#FFFFFF;font-weight:900;font-size:16px;
}
.voice-name{color:var(--text-invert);font-weight:700;font-size:14px;}
.voice-stars{color:var(--badge);font-size:13px;letter-spacing:2px;margin:2px 0 6px;font-family:var(--font-num);}
.voice-text{
  color:var(--text-invert-soft);font-size:14px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.voice-src{display:inline-block;margin-top:8px;font-size:12px;color:rgba(185,178,216,.7);}
@media (prefers-reduced-motion:reduce){
  .marquee-track,.marquee-track--reverse{animation:none;}
  .marquee{overflow-x:auto;}
}
@media (max-width:640px){
  .voice-card{flex:0 0 268px;width:268px;}
}

/* ============ CTA ============ */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:var(--grad-main);
  box-shadow:0 24px 60px rgba(123,77,255,.34);
  padding:clamp(28px,4vw,52px);
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
}
.cta-card::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;opacity:.14;
}
.cta-card > *{position:relative;z-index:2;}
.cta-card h2{color:#FFFFFF;}
.cta-card p{color:rgba(255,255,255,.9);margin-top:14px;font-size:16px;line-height:1.8;}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.cta-badges .badge-num{background:rgba(255,255,255,.92);}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:stretch;}
.cta-actions .btn{width:100%;}
.cta-actions .btn-ghost{background:rgba(20,16,42,.28);color:#FFFFFF;border-color:rgba(255,255,255,.5);}
.cta-actions .btn-ghost:hover{background:rgba(20,16,42,.42);transform:translateY(-2px);}
@media (max-width:1023px){.cta-card{grid-template-columns:1fr;}}

/* ============ FAQ ============ */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  position:relative;background:#FFFFFF;border:1px solid var(--line-light);
  border-radius:16px;overflow:hidden;box-shadow:var(--shadow-light);
  transition:border-color 220ms var(--ease);
}
.faq-item:hover{border-color:rgba(123,77,255,.3);}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;
  background:var(--grad-main);opacity:0;transition:opacity 240ms var(--ease);
}
.faq-item[open]::before{opacity:1;}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:20px 24px;font-weight:700;font-size:16px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(123,77,255,.1);color:var(--primary);font-size:17px;font-weight:800;
  transition:transform 240ms var(--ease),background-color 240ms var(--ease);
}
.faq-item[open] summary::after{content:"–";background:var(--primary);color:#FFFFFF;}
.faq-body{padding:0 24px 22px;color:var(--text-muted);font-size:16px;line-height:1.8;}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);color:var(--text-invert-soft);padding-top:clamp(48px,7vw,84px);}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;
  padding-bottom:44px;border-bottom:1px solid rgba(245,242,255,.1);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{font-size:17px;}
.footer-grid p{font-size:14px;line-height:1.9;color:rgba(185,178,216,.82);max-width:340px;}
.footer-title{color:var(--text-invert);font-size:15px;font-weight:800;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(185,178,216,.85);transition:color 200ms var(--ease),transform 200ms var(--ease);width:fit-content;}
.footer-links a:hover{color:#FFFFFF;transform:translateX(3px);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:22px 0 30px;font-size:13px;color:rgba(185,178,216,.68);
}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;gap:28px;}}

/* ============ 通用区块底 ============ */
.bg-light{background:var(--surface);}
.bg-soft{background:var(--surface-soft);}
.bg-deep{background:var(--bg-deep);}
.grid-bg{
  position:relative;
}
.grid-bg::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(20,16,42,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(20,16,42,.045) 1px,transparent 1px);
  background-size:44px 44px;
}
.grid-bg > *{position:relative;z-index:1;}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;animation-iteration-count:1 !important;}
}

/* roulang page: category1 */
:root{
    --bg-deep:#0F0A1E;
    --bg-deep-2:#191134;
    --surface:#FFFFFF;
    --surface-soft:#F6F3FF;
    --primary:#7B4DFF;
    --primary-2:#22D3C5;
    --accent:#FF8A3D;
    --badge:#FFD166;
    --badge-text:#2A1B00;
    --text-invert:#F5F2FF;
    --text-invert-soft:#B9B2D8;
    --text-strong:#14102A;
    --text-muted:#6B6588;
    --line-dark:rgba(123,77,255,.24);
    --line-light:rgba(20,16,42,.08);
    --grad-main:linear-gradient(120deg,#7B4DFF 0%,#22D3C5 100%);
    --r-lg:28px;
    --r-md:18px;
    --r-sm:12px;
    --r-pill:999px;
    --shadow-dark:0 18px 48px rgba(70,40,160,.45);
    --shadow-light:0 10px 30px rgba(24,16,60,.08);
    --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    --font-num:ui-monospace,"DIN Alternate",monospace;
    --ease:cubic-bezier(.22,.61,.36,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.8;
    color:var(--text-strong);
    background:var(--surface);
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input{font-family:inherit;font-size:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul{padding:0;list-style:none;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:1024px){
    .container{padding-left:32px;padding-right:32px;}
  }

  :focus-visible{
    outline:2px solid var(--primary-2);
    outline-offset:2px;
    border-radius:6px;
  }

  /* ============ 导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:80;
    background:transparent;
    transition:background-color .28s var(--ease), box-shadow .28s var(--ease);
  }
  .site-header::after{
    content:"";
    display:block;
    height:1px;
    background:linear-gradient(90deg,rgba(123,77,255,0),rgba(123,77,255,.55),rgba(34,211,197,.5),rgba(123,77,255,0));
    opacity:0;
    transition:opacity .28s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(15,10,30,.94);
    box-shadow:0 12px 32px rgba(8,4,22,.55);
  }
  .site-header.is-scrolled::after{opacity:1;}

  .header-inner{
    display:grid;
    grid-template-columns:1.35fr 1fr;
    align-items:center;
    gap:16px;
    height:56px;
  }
  @media (min-width:768px){
    .header-inner{height:64px;}
  }

  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    color:var(--text-invert);
    font-weight:800;
    font-size:16px;
    letter-spacing:.01em;
    white-space:nowrap;
  }
  .brand-mark{
    width:26px;
    height:26px;
    border-radius:9px;
    background:var(--grad-main);
    box-shadow:0 6px 18px rgba(123,77,255,.55);
    position:relative;
    flex:0 0 auto;
  }
  .brand-mark::after{
    content:"";
    position:absolute;
    inset:8px;
    border-radius:4px;
    background:rgba(15,10,30,.85);
  }
  .header-left{display:flex;align-items:center;gap:28px;min-width:0;}
  .header-right{display:flex;align-items:center;gap:12px;justify-content:flex-end;}

  .nav-links{display:none;align-items:center;gap:6px;}
  @media (min-width:1024px){
    .nav-links{display:flex;}
  }
  .nav-link{
    position:relative;
    display:inline-block;
    padding:8px 14px;
    border-radius:var(--r-pill);
    font-size:15px;
    font-weight:600;
    color:var(--text-invert-soft);
    transition:color .22s var(--ease), background-color .22s var(--ease);
  }
  .nav-link::before{
    content:"";
    position:absolute;
    left:14px;
    right:14px;
    bottom:2px;
    height:2px;
    border-radius:2px;
    background:var(--grad-main);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .26s var(--ease);
  }
  .nav-link:hover{color:var(--text-invert);}
  .nav-link:hover::before{transform:scaleX(1);}
  .nav-link.is-active{
    color:var(--text-invert);
    background:rgba(123,77,255,.26);
  }
  .nav-link.is-active::before{transform:scaleX(0);}

  .nav-search{
    display:none;
    align-items:center;
    gap:8px;
    height:40px;
    padding:0 14px;
    border-radius:var(--r-pill);
    border:1px solid var(--line-dark);
    background:rgba(255,255,255,.05);
    transition:border-color .22s var(--ease), box-shadow .22s var(--ease);
  }
  .nav-search:focus-within{
    border-color:rgba(34,211,197,.75);
    box-shadow:0 0 0 3px rgba(34,211,197,.16);
  }
  @media (min-width:640px){
    .nav-search{display:flex;}
  }
  .nav-search i{color:var(--text-invert-soft);font-size:13px;}
  .nav-search input{
    width:132px;
    border:0;
    background:transparent;
    color:var(--text-invert);
    font-size:14px;
    outline:none;
  }
  .nav-search input::placeholder{color:rgba(185,178,216,.75);}

  .nav-toggle{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:40px;
    height:40px;
    border-radius:12px;
    border:1px solid var(--line-dark);
    background:rgba(255,255,255,.05);
    color:var(--text-invert);
    cursor:pointer;
    transition:background-color .22s var(--ease);
  }
  .nav-toggle:hover{background:rgba(123,77,255,.28);}
  @media (min-width:1024px){
    .nav-toggle{display:none;}
  }

  .mobile-drawer{
    overflow:hidden;
    max-height:0;
    opacity:0;
    background:rgba(15,10,30,.97);
    border-bottom:1px solid var(--line-dark);
    transition:max-height .32s var(--ease), opacity .28s var(--ease);
  }
  .mobile-drawer.is-open{max-height:280px;opacity:1;}
  .mobile-drawer .drawer-inner{
    padding:12px 20px 20px;
    display:flex;
    flex-direction:column;
    gap:6px;
  }
  .mobile-drawer a{
    padding:12px 14px;
    border-radius:var(--r-sm);
    color:var(--text-invert-soft);
    font-weight:600;
    font-size:15px;
    transition:background-color .22s var(--ease), color .22s var(--ease);
  }
  .mobile-drawer a:hover{background:rgba(123,77,255,.22);color:var(--text-invert);}
  .mobile-drawer a.is-active{background:rgba(123,77,255,.3);color:var(--text-invert);}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 26px;
    border-radius:var(--r-pill);
    font-size:15px;
    font-weight:700;
    border:1.5px solid transparent;
    cursor:pointer;
    transition:transform .22s var(--ease), box-shadow .22s var(--ease), background-color .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease);
  }
  .btn:active{transform:translateY(1px) scale(.99);}
  .btn-accent{
    background:var(--accent);
    color:#26120A;
    box-shadow:0 12px 28px rgba(255,138,61,.32);
  }
  .btn-accent:hover{
    transform:translateY(-2px);
    box-shadow:0 16px 34px rgba(255,138,61,.42);
  }
  .btn-ghost{
    background:transparent;
    color:var(--text-invert);
    border-color:rgba(185,178,216,.42);
  }
  .btn-ghost:hover{
    transform:translateY(-2px);
    border-color:var(--primary-2);
    color:#FFFFFF;
    box-shadow:0 0 0 1px rgba(34,211,197,.3), 0 12px 26px rgba(34,211,197,.18);
  }
  .btn-soft{
    background:var(--surface-soft);
    color:var(--primary);
    border-color:var(--line-light);
  }
  .btn-soft:hover{
    transform:translateY(-2px);
    background:#FFFFFF;
    box-shadow:var(--shadow-light);
  }
  .btn-sm{height:40px;padding:0 20px;font-size:14px;}

  .text-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    color:var(--primary);
    font-weight:700;
    font-size:14px;
    transition:color .22s var(--ease);
  }
  .text-link i{transition:transform .22s var(--ease);}
  .text-link:hover{color:#5C33D6;}
  .text-link:hover i{transform:translateX(4px);}

  /* ============ 徽章 / 标签 ============ */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:7px 14px;
    border-radius:var(--r-pill);
    background:var(--badge);
    color:var(--badge-text);
    font-size:13px;
    font-weight:700;
    white-space:nowrap;
  }
  .badge .num{font-family:var(--font-num);font-size:18px;font-weight:800;line-height:1;}
  .badge-soft{
    background:rgba(255,255,255,.08);
    color:var(--text-invert);
    border:1px solid var(--line-dark);
  }
  .badge-soft .num{color:var(--primary-2);}

  .tag{
    display:inline-flex;
    align-items:center;
    padding:4px 12px;
    border-radius:var(--r-pill);
    background:rgba(123,77,255,.1);
    color:var(--primary);
    font-size:13px;
    font-weight:600;
    line-height:1.6;
  }
  .tag-strong{
    background:rgba(34,211,197,.14);
    color:#0E7C74;
  }

  /* ============ Hero ============ */
  .hero{
    position:relative;
    margin-top:-56px;
    padding-top:104px;
    padding-bottom:clamp(48px,7vw,84px);
    background:var(--bg-deep);
    overflow:hidden;
    color:var(--text-invert);
  }
  @media (min-width:768px){
    .hero{margin-top:-64px;padding-top:120px;}
  }
  .hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-1.png');
    background-size:cover;
    background-position:center;
    opacity:.16;
    mix-blend-mode:screen;
    pointer-events:none;
  }
  .hero::after{
    content:"";
    position:absolute;
    inset:0;
    background:
      radial-gradient(680px 320px at 12% 8%, rgba(123,77,255,.42), transparent 62%),
      radial-gradient(560px 300px at 88% 92%, rgba(34,211,197,.26), transparent 66%),
      linear-gradient(180deg, rgba(15,10,30,.35) 0%, rgba(15,10,30,.9) 72%, #0F0A1E 100%);
    pointer-events:none;
  }
  .hero .container{position:relative;z-index:2;}

  .hero-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:40px;
    align-items:center;
  }
  @media (min-width:1024px){
    .hero-grid{grid-template-columns:1.35fr 1fr;gap:56px;}
  }

  .breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:14px;
    color:var(--text-invert-soft);
    margin-bottom:18px;
  }
  .breadcrumb a{transition:color .22s var(--ease);}
  .breadcrumb a:hover{color:var(--primary-2);}
  .breadcrumb .sep{opacity:.5;}
  .breadcrumb .current{color:var(--primary-2);font-weight:700;}

  .hero h1{
    font-size:clamp(30px,5vw,52px);
    line-height:1.15;
    font-weight:900;
    letter-spacing:-.02em;
    margin-bottom:18px;
    color:var(--text-invert);
  }
  .hero h1 .grad{
    background:var(--grad-main);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
  }
  .hero-sub{
    font-size:clamp(15px,1.6vw,17px);
    line-height:1.85;
    color:var(--text-invert-soft);
    max-width:620px;
    margin-bottom:26px;
  }
  .hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    margin-bottom:26px;
  }
  .hero-badges{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-bottom:18px;
  }
  .hero-note{
    font-size:14px;
    color:rgba(185,178,216,.86);
    line-height:1.8;
  }

  .hero-visual{position:relative;display:flex;justify-content:center;}
  .device-card{
    position:relative;
    width:100%;
    max-width:320px;
    aspect-ratio:9/16;
    border-radius:var(--r-lg);
    overflow:hidden;
    border:1px solid var(--line-dark);
    box-shadow:var(--shadow-dark);
    transform:rotate(-1.5deg);
    background:var(--bg-deep-2);
  }
  .device-card img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .4s var(--ease);
  }
  .device-card:hover img{transform:scale(1.04);}
  .device-card::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(180deg, rgba(15,10,30,0) 40%, rgba(15,10,30,.86) 100%);
  }
  .device-caption{
    position:absolute;
    left:18px;
    right:18px;
    bottom:18px;
    z-index:2;
    font-size:14px;
    font-weight:700;
    color:var(--text-invert);
  }
  .device-caption span{
    display:block;
    font-size:13px;
    font-weight:500;
    color:var(--text-invert-soft);
    margin-top:4px;
  }
  .float-badge{
    position:absolute;
    z-index:3;
    background:var(--badge);
    color:var(--badge-text);
    border-radius:var(--r-pill);
    padding:8px 14px;
    font-size:13px;
    font-weight:700;
    box-shadow:0 14px 30px rgba(8,4,22,.55);
    white-space:nowrap;
  }
  .float-badge .num{font-family:var(--font-num);font-size:17px;font-weight:800;margin-right:4px;}
  .float-badge.fb-1{top:26px;left:-8px;transform:rotate(-3deg);}
  .float-badge.fb-2{bottom:70px;right:-10px;transform:rotate(2deg);background:rgba(34,211,197,.95);color:#04241F;}

  /* ============ 通用板块 ============ */
  .section{padding:clamp(56px,8vw,104px) 0;}
  .section-soft{background:var(--surface-soft);}
  .section-dark{background:var(--bg-deep);color:var(--text-invert);position:relative;overflow:hidden;}
  .section-dark::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    opacity:.13;
    mix-blend-mode:screen;
  }
  .section-dark .container{position:relative;z-index:2;}

  .section-head{
    display:flex;
    flex-wrap:wrap;
    align-items:flex-end;
    justify-content:space-between;
    gap:16px;
    margin-bottom:clamp(28px,4vw,44px);
  }
  .section-head h2{
    font-size:clamp(24px,3.2vw,36px);
    line-height:1.25;
    font-weight:800;
    letter-spacing:-.01em;
  }
  .section-head .lead{
    margin-top:10px;
    font-size:15px;
    color:var(--text-muted);
    max-width:640px;
  }
  .section-dark .section-head .lead{color:var(--text-invert-soft);}
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:700;
    color:var(--primary);
    letter-spacing:.08em;
    margin-bottom:12px;
  }
  .eyebrow::before{
    content:"";
    width:24px;
    height:2px;
    border-radius:2px;
    background:var(--grad-main);
  }
  .section-dark .eyebrow{color:var(--primary-2);}

  /* ============ 两列主体 ============ */
  .layout-2col{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    align-items:start;
  }
  @media (min-width:1024px){
    .layout-2col{grid-template-columns:2fr 1fr;gap:40px;}
  }

  .step-card{
    position:relative;
    display:grid;
    grid-template-columns:1fr;
    gap:18px;
    padding:22px;
    border-radius:var(--r-md);
    background:var(--surface);
    border:1px solid var(--line-light);
    box-shadow:var(--shadow-light);
    transition:transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
  }
  .step-card + .step-card{margin-top:20px;}
  @media (min-width:768px){
    .step-card{grid-template-columns:150px 1fr;gap:24px;padding:24px;}
  }
  .step-card:hover{
    transform:translateY(-4px);
    border-color:rgba(123,77,255,.32);
    box-shadow:0 20px 44px rgba(24,16,60,.14);
  }
  .step-card.tall{padding-top:30px;padding-bottom:30px;}
  .step-thumb{
    border-radius:var(--r-sm);
    overflow:hidden;
    aspect-ratio:4/3;
    background:var(--surface-soft);
  }
  .step-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
  .step-card:hover .step-thumb img{transform:scale(1.05);}
  .step-body h3{
    font-size:20px;
    line-height:1.4;
    font-weight:700;
    margin-bottom:10px;
  }
  .step-body p{
    font-size:15px;
    color:var(--text-muted);
    line-height:1.85;
    margin-bottom:14px;
  }
  .step-meta{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:10px;
    margin-bottom:14px;
  }
  .step-index{
    font-family:var(--font-num);
    font-size:26px;
    font-weight:800;
    background:var(--grad-main);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
    line-height:1;
  }

  /* ============ 侧栏 ============ */
  .sidebar{display:flex;flex-direction:column;gap:20px;}
  @media (min-width:1024px){
    .sidebar{position:sticky;top:96px;}
  }
  .side-card{
    padding:22px;
    border-radius:var(--r-md);
    background:var(--surface);
    border:1px solid var(--line-light);
    box-shadow:var(--shadow-light);
  }
  .side-card h3{
    font-size:16px;
    font-weight:800;
    margin-bottom:14px;
  }
  .side-pills{display:flex;flex-wrap:wrap;gap:8px;}
  .side-pill{
    display:inline-flex;
    align-items:center;
    padding:7px 14px;
    border-radius:var(--r-pill);
    font-size:14px;
    font-weight:600;
    background:var(--surface-soft);
    color:var(--text-muted);
    border:1px solid var(--line-light);
    transition:background-color .22s var(--ease), color .22s var(--ease), transform .22s var(--ease);
  }
  .side-pill:hover{transform:translateY(-2px);background:#fff;color:var(--primary);}
  .side-pill.is-active{
    background:rgba(123,77,255,.12);
    color:var(--primary);
    border-color:rgba(123,77,255,.3);
  }
  .side-stat{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:12px 0;
    border-bottom:1px dashed var(--line-light);
    font-size:14px;
    color:var(--text-muted);
  }
  .side-stat:last-child{border-bottom:0;padding-bottom:0;}
  .side-stat strong{
    font-family:var(--font-num);
    font-size:18px;
    font-weight:800;
    color:var(--text-strong);
  }
  .side-cta{
    background:var(--bg-deep);
    color:var(--text-invert);
    border:1px solid var(--line-dark);
    position:relative;
    overflow:hidden;
  }
  .side-cta::before{
    content:"";
    position:absolute;
    inset:0;
    background:radial-gradient(320px 180px at 80% 0%, rgba(123,77,255,.5), transparent 70%);
  }
  .side-cta > *{position:relative;z-index:2;}
  .side-cta h3{color:var(--text-invert);}
  .side-cta p{
    font-size:14px;
    color:var(--text-invert-soft);
    margin-bottom:16px;
    line-height:1.8;
  }

  /* ============ 时间线 ============ */
  .flow-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:20px;
  }
  @media (min-width:768px){
    .flow-grid{grid-template-columns:1fr 1fr;}
  }
  .flow-item{
    display:flex;
    gap:18px;
    padding:22px;
    border-radius:var(--r-md);
    background:rgba(255,255,255,.045);
    border:1px solid var(--line-dark);
    transition:transform .24s var(--ease), background-color .24s var(--ease);
  }
  .flow-item:hover{transform:translateY(-3px);background:rgba(123,77,255,.14);}
  .flow-num{
    flex:0 0 auto;
    width:44px;
    height:44px;
    border-radius:14px;
    display:grid;
    place-items:center;
    font-family:var(--font-num);
    font-weight:800;
    font-size:18px;
    background:var(--grad-main);
    color:#0F0A1E;
  }
  .flow-item h3{
    font-size:18px;
    font-weight:700;
    color:var(--text-invert);
    margin-bottom:8px;
  }
  .flow-item p{font-size:14px;color:var(--text-invert-soft);}

  /* ============ 对照表 ============ */
  .table-wrap{
    border-radius:var(--r-md);
    border:1px solid var(--line-light);
    background:var(--surface);
    box-shadow:var(--shadow-light);
    overflow:hidden;
  }
  .table-row{
    display:grid;
    grid-template-columns:1fr;
    gap:6px;
    padding:18px 22px;
    border-bottom:1px solid var(--line-light);
    font-size:15px;
  }
  .table-row:last-child{border-bottom:0;}
  @media (min-width:768px){
    .table-row{grid-template-columns:1.1fr 1.2fr 2fr;gap:20px;align-items:center;}
  }
  .table-head{
    background:var(--surface-soft);
    font-weight:800;
    font-size:14px;
    color:var(--text-strong);
    letter-spacing:.02em;
  }
  .table-row .col-item{font-weight:700;}
  .table-row .col-value{color:var(--primary);font-weight:700;}
  .table-row .col-desc{color:var(--text-muted);font-size:14px;}

  /* ============ FAQ ============ */
  .faq-wrap{max-width:880px;margin:0 auto;}
  .faq-item{
    position:relative;
    border-radius:16px;
    background:var(--surface);
    border:1px solid var(--line-light);
    box-shadow:var(--shadow-light);
    margin-bottom:14px;
    overflow:hidden;
    transition:border-color .24s var(--ease);
  }
  .faq-item::before{
    content:"";
    position:absolute;
    left:0;
    top:0;
    bottom:0;
    width:4px;
    background:var(--grad-main);
    transform:scaleY(0);
    transform-origin:top center;
    transition:transform .28s var(--ease);
  }
  .faq-item.is-open::before{transform:scaleY(1);}
  .faq-item.is-open{border-color:rgba(123,77,255,.3);}
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:20px 24px;
    background:transparent;
    border:0;
    text-align:left;
    font-size:16px;
    font-weight:700;
    color:var(--text-strong);
    cursor:pointer;
    line-height:1.6;
  }
  .faq-q i{
    flex:0 0 auto;
    color:var(--primary);
    transition:transform .28s var(--ease);
  }
  .faq-item.is-open .faq-q i{transform:rotate(180deg);}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .32s var(--ease);
  }
  .faq-a p{
    padding:0 24px 22px 24px;
    font-size:16px;
    line-height:1.8;
    color:var(--text-muted);
  }

  /* ============ CTA ============ */
  .cta-card{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-lg);
    background:var(--grad-main);
    color:#0F0A1E;
    padding:clamp(28px,4vw,48px);
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
    align-items:center;
    box-shadow:0 24px 60px rgba(123,77,255,.34);
  }
  @media (min-width:1024px){
    .cta-card{grid-template-columns:1.5fr 1fr;gap:40px;}
  }
  .cta-card::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-3.png');
    background-size:cover;
    background-position:center;
    opacity:.16;
    mix-blend-mode:overlay;
  }
  .cta-card > *{position:relative;z-index:2;}
  .cta-card h2{
    font-size:clamp(24px,3vw,34px);
    font-weight:900;
    line-height:1.25;
    margin-bottom:12px;
    color:#160C33;
  }
  .cta-card p{
    font-size:15px;
    color:rgba(22,12,51,.82);
    margin-bottom:20px;
    max-width:560px;
  }
  .cta-badges{display:flex;flex-wrap:wrap;gap:10px;}
  .cta-badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:7px 14px;
    border-radius:var(--r-pill);
    background:rgba(15,10,30,.82);
    color:var(--text-invert);
    font-size:13px;
    font-weight:700;
  }
  .cta-badge .num{font-family:var(--font-num);font-size:17px;font-weight:800;color:var(--badge);}
  .cta-actions{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    justify-content:flex-start;
  }
  @media (min-width:1024px){
    .cta-actions{justify-content:flex-end;}
  }
  .btn-dark{
    background:#160C33;
    color:#FFFFFF;
    box-shadow:0 14px 32px rgba(22,12,51,.34);
  }
  .btn-dark:hover{transform:translateY(-2px);background:#0F0A1E;box-shadow:0 18px 38px rgba(22,12,51,.42);}
  .btn-outline-dark{
    background:transparent;
    color:#160C33;
    border-color:rgba(22,12,51,.4);
  }
  .btn-outline-dark:hover{transform:translateY(-2px);border-color:#160C33;background:rgba(255,255,255,.35);}

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--bg-deep);
    color:var(--text-invert-soft);
    padding:clamp(48px,6vw,72px) 0 24px;
    position:relative;
  }
  .site-footer::before{
    content:"";
    position:absolute;
    left:0;right:0;top:0;
    height:1px;
    background:linear-gradient(90deg,rgba(123,77,255,0),rgba(123,77,255,.5),rgba(34,211,197,.45),rgba(123,77,255,0));
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    padding-bottom:32px;
  }
  @media (min-width:640px){
    .footer-grid{grid-template-columns:1fr 1fr;}
  }
  @media (min-width:1024px){
    .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
  }
  .footer-brand{
    display:flex;
    align-items:center;
    gap:10px;
    color:var(--text-invert);
    font-weight:800;
    font-size:17px;
    margin-bottom:14px;
  }
  .footer-brand .brand-mark{width:24px;height:24px;}
  .site-footer p{font-size:14px;line-height:1.85;max-width:340px;color:rgba(185,178,216,.8);}
  .footer-title{
    color:var(--text-invert);
    font-weight:700;
    font-size:15px;
    margin-bottom:14px;
  }
  .footer-links{display:flex;flex-direction:column;gap:10px;}
  .footer-links a{
    font-size:14px;
    color:rgba(185,178,216,.82);
    transition:color .22s var(--ease), transform .22s var(--ease);
    display:inline-block;
  }
  .footer-links a:hover{color:var(--primary-2);transform:translateX(3px);}
  .footer-bottom{
    border-top:1px solid rgba(123,77,255,.18);
    padding-top:20px;
    display:flex;
    flex-wrap:wrap;
    gap:10px 24px;
    justify-content:space-between;
    font-size:13px;
    color:rgba(185,178,216,.65);
  }

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

/* roulang page: article */
:root{
  --bg-deep:#0F0A1E;
  --bg-deep-2:#191134;
  --surface:#FFFFFF;
  --surface-soft:#F6F3FF;
  --primary:#7B4DFF;
  --primary-2:#22D3C5;
  --grad-main:linear-gradient(120deg,#7B4DFF 0%,#22D3C5 100%);
  --accent:#FF8A3D;
  --badge:#FFD166;
  --badge-text:#2A1B00;
  --text-invert:#F5F2FF;
  --text-invert-soft:#B9B2D8;
  --text-strong:#14102A;
  --text-muted:#6B6588;
  --line-dark:rgba(123,77,255,.24);
  --line-light:rgba(20,16,42,.08);
  --r-lg:28px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-dark:0 18px 48px rgba(70,40,160,.45);
  --shadow-light:0 10px 30px rgba(24,16,60,.08);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:ui-monospace,"DIN Alternate",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text-strong);
  background:var(--surface);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:none;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary-2);outline-offset:2px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media(min-width:1024px){
  .container{padding:0 32px;}
}
.section{padding:clamp(56px,8vw,104px) 0;}
.section-soft{background:var(--surface-soft);}
.section-dark{background:var(--bg-deep);color:var(--text-invert);}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:36px;
}
.section-title{
  font-size:clamp(24px,3.2vw,36px);
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.01em;
}
.section-sub{
  margin-top:10px;
  font-size:16px;
  line-height:1.8;
  color:var(--text-muted);
  max-width:640px;
}
.section-dark .section-sub{color:var(--text-invert-soft);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--primary);
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  border-radius:2px;
  background:var(--grad-main);
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:50px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-weight:700;
  font-size:15px;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background-color 220ms var(--ease),border-color 220ms var(--ease),color 220ms var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(0) scale(.98);}
.btn-accent{
  background:var(--accent);
  color:#26130A;
  box-shadow:0 10px 26px rgba(255,138,61,.32);
}
.btn-accent:hover{
  transform:translateY(-2px);
  box-shadow:0 14px 32px rgba(255,138,61,.42);
}
.btn-solid{
  background:var(--grad-main);
  color:#FFFFFF;
  box-shadow:0 12px 30px rgba(123,77,255,.32);
}
.btn-solid:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(123,77,255,.28),0 16px 36px rgba(123,77,255,.36);
}
.btn-ghost{
  border:1.5px solid rgba(245,242,255,.34);
  color:var(--text-invert);
  background:transparent;
}
.btn-ghost:hover{
  border-color:var(--primary-2);
  color:#FFFFFF;
  transform:translateY(-2px);
}
.btn-outline{
  border:1.5px solid var(--line-light);
  color:var(--text-strong);
  background:#FFFFFF;
}
.btn-outline:hover{
  border-color:var(--primary);
  color:var(--primary);
  transform:translateY(-2px);
}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:700;
  font-size:15px;
  color:var(--primary);
  transition:color 220ms var(--ease);
}
.btn-text .arrow{transition:transform 220ms var(--ease);}
.btn-text:hover .arrow{transform:translateX(4px);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;
  align-items:baseline;
  gap:4px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:700;
}
.badge-amber{
  background:var(--badge);
  color:var(--badge-text);
}
.badge-amber .num{
  font-family:var(--font-num);
  font-size:17px;
  font-weight:800;
  letter-spacing:-.02em;
}
.badge-ghost{
  background:rgba(123,77,255,.10);
  border:1px solid var(--line-dark);
  color:var(--primary);
}
.badge-meta{
  background:rgba(123,77,255,.08);
  border:1px solid var(--line-light);
  color:#4A4270;
  font-weight:600;
}
.badge-meta .k{color:var(--text-muted);font-weight:600;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:rgba(123,77,255,.10);
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  line-height:1.2;
  transition:background-color 220ms var(--ease),transform 220ms var(--ease);
}
.tag:hover{background:rgba(123,77,255,.18);transform:translateY(-2px);}

/* ===== 导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  transition:background-color 260ms var(--ease),box-shadow 260ms var(--ease),border-color 260ms var(--ease);
  background:transparent;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(15,10,30,.94);
  border-bottom:1px solid rgba(123,77,255,.28);
}
.nav-inner{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  align-items:center;
  gap:20px;
  height:64px;
}
.nav-left{
  display:flex;
  align-items:center;
  gap:32px;
  min-width:0;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:30px;
  height:30px;
  border-radius:10px;
  background:var(--grad-main);
  box-shadow:0 8px 20px rgba(123,77,255,.42);
  position:relative;
  flex-shrink:0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:9px;
  border-radius:4px;
  background:rgba(255,255,255,.9);
}
.brand-text{
  font-size:17px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text-invert);
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  color:var(--text-invert-soft);
  transition:color 220ms var(--ease),background-color 220ms var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--grad-main);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform 240ms var(--ease);
}
.nav-link:hover{color:#FFFFFF;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{
  background:rgba(123,77,255,.22);
  color:#FFFFFF;
}
.nav-link.is-active::after{transform:scaleX(0);}
.nav-right{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:14px;
  min-width:0;
}
.nav-search{
  position:relative;
  flex:0 1 210px;
}
.nav-search input{
  width:100%;
  height:40px;
  padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid rgba(185,178,216,.28);
  background:rgba(255,255,255,.06);
  color:var(--text-invert);
  font-size:14px;
  transition:border-color 220ms var(--ease),background-color 220ms var(--ease);
}
.nav-search input::placeholder{color:rgba(185,178,216,.7);}
.nav-search input:hover{border-color:rgba(34,211,197,.5);}
.nav-search input:focus{
  outline:none;
  border-color:var(--primary-2);
  background:rgba(255,255,255,.1);
}
.nav-cta{height:42px;padding:0 22px;font-size:14px;}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:var(--r-sm);
  border:1px solid rgba(185,178,216,.28);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text-invert);
  transition:transform 220ms var(--ease),opacity 220ms var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;
  top:56px;
  right:0;
  width:min(320px,86vw);
  height:calc(100vh - 56px);
  background:var(--bg-deep-2);
  border-left:1px solid var(--line-dark);
  padding:24px 22px 32px;
  transform:translateX(102%);
  transition:transform 280ms var(--ease);
  overflow-y:auto;
  z-index:70;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-links{display:flex;flex-direction:column;gap:8px;margin:18px 0 24px;}
.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 16px;
  border-radius:var(--r-sm);
  border:1px solid rgba(123,77,255,.18);
  background:rgba(123,77,255,.08);
  color:var(--text-invert);
  font-weight:600;
  opacity:0;
  transform:translateY(8px);
  animation:drawerIn 320ms var(--ease) forwards;
}
.mobile-drawer.is-open .drawer-link:nth-child(1){animation-delay:60ms;}
.mobile-drawer.is-open .drawer-link:nth-child(2){animation-delay:120ms;}
.mobile-drawer.is-open .drawer-link:nth-child(3){animation-delay:180ms;}
.drawer-link:hover{background:rgba(123,77,255,.2);}
.drawer-link.is-active{border-color:var(--primary-2);color:#FFFFFF;}
@keyframes drawerIn{
  to{opacity:1;transform:translateY(0);}
}
.drawer-cta{width:100%;margin-top:8px;}
.drawer-title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--text-invert-soft);
}

/* ===== 文章 Hero ===== */
.article-hero{
  position:relative;
  background:var(--bg-deep);
  color:var(--text-invert);
  padding:calc(64px + 32px) 0 clamp(48px,6vw,72px);
  overflow:hidden;
}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.16;
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(760px 420px at 82% 6%,rgba(123,77,255,.42),transparent 62%),
    radial-gradient(560px 340px at 6% 92%,rgba(34,211,197,.22),transparent 66%),
    linear-gradient(180deg,rgba(15,10,30,.55) 0%,rgba(15,10,30,.92) 100%);
}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-invert-soft);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--text-invert-soft);transition:color 220ms var(--ease);}
.breadcrumb a:hover{color:var(--primary-2);}
.crumb-sep{color:rgba(185,178,216,.5);}
.crumb-current{color:var(--primary-2);font-weight:700;max-width:min(560px,70vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.hero-toprow{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-bottom:16px;
  margin-bottom:26px;
  border-bottom:1px solid rgba(123,77,255,.24);
}
.hero-cat{
  display:flex;
  align-items:center;
  gap:12px;
}
.hero-cat .cat-line{
  width:34px;
  height:3px;
  border-radius:3px;
  background:var(--grad-main);
}
.hero-cat h2{
  font-size:clamp(18px,2.2vw,22px);
  font-weight:800;
  color:#FFFFFF;
}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:700;
  color:var(--text-invert-soft);
  transition:color 220ms var(--ease);
}
.back-link .arrow{transition:transform 220ms var(--ease);}
.back-link:hover{color:var(--primary-2);}
.back-link:hover .arrow{transform:translateX(-4px);}
.article-title{
  font-size:clamp(28px,4.4vw,48px);
  line-height:1.18;
  font-weight:900;
  letter-spacing:-.02em;
  max-width:900px;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.meta-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:var(--r-pill);
  border:1px solid rgba(123,77,255,.3);
  background:rgba(255,255,255,.06);
  color:var(--text-invert-soft);
  font-size:14px;
  font-weight:600;
}
.meta-chip strong{color:#FFFFFF;font-family:var(--font-num);font-weight:700;}

/* ===== 文章主体 ===== */
.article-shell{background:var(--surface);padding:clamp(40px,5vw,64px) 0 clamp(56px,7vw,88px);}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:40px;
  align-items:start;
}
@media(min-width:1280px){
  .article-layout{grid-template-columns:220px minmax(0,1fr);}
}
.toc{
  display:none;
}
@media(min-width:1280px){
  .toc{
    display:block;
    position:sticky;
    top:96px;
    padding:22px 20px;
    border-radius:var(--r-md);
    background:var(--surface-soft);
    border:1px solid var(--line-light);
  }
}
.toc-title{
  font-size:13px;
  font-weight:800;
  letter-spacing:.06em;
  color:var(--text-muted);
  margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:62vh;overflow-y:auto;}
.toc-list::-webkit-scrollbar{width:0;}
.toc-link{
  display:block;
  position:relative;
  padding:8px 10px 8px 14px;
  font-size:14px;
  line-height:1.5;
  color:var(--text-muted);
  border-radius:var(--r-sm);
  transition:color 200ms var(--ease),background-color 200ms var(--ease);
}
.toc-link::before{
  content:"";
  position:absolute;
  left:2px;
  top:10px;
  bottom:10px;
  width:3px;
  border-radius:3px;
  background:var(--grad-main);
  opacity:0;
  transition:opacity 200ms var(--ease);
}
.toc-link.is-sub{padding-left:24px;font-size:13.5px;}
.toc-link:hover{color:var(--primary);background:rgba(123,77,255,.07);}
.toc-link.is-current{color:var(--primary);font-weight:700;background:rgba(123,77,255,.09);}
.toc-link.is-current::before{opacity:1;}
.article-body{
  max-width:760px;
  font-size:16px;
  line-height:1.8;
  color:#241C3D;
  word-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.4vw,27px);
  line-height:1.35;
  font-weight:800;
  color:var(--text-strong);
  margin:40px 0 16px;
  padding-left:18px;
  scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:7px;
  bottom:7px;
  width:4px;
  border-radius:4px;
  background:var(--grad-main);
}
.article-body h3{
  font-size:19px;
  line-height:1.45;
  font-weight:700;
  color:var(--text-strong);
  margin:28px 0 12px;
  scroll-margin-top:96px;
}
.article-body h4{
  font-size:17px;
  font-weight:700;
  margin:22px 0 10px;
  color:#33295A;
}
.article-body ul,
.article-body ol{margin:0 0 18px;}
.article-body ul li{
  position:relative;
  padding-left:20px;
  margin-bottom:10px;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;
  top:.72em;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--primary-2);
}
.article-body ol{counter-reset:item;}
.article-body ol li{
  position:relative;
  padding-left:26px;
  margin-bottom:10px;
  counter-increment:item;
}
.article-body ol li::before{
  content:counter(item);
  position:absolute;
  left:0;
  top:.35em;
  width:18px;
  height:18px;
  border-radius:50%;
  background:rgba(123,77,255,.12);
  color:var(--primary);
  font-size:12px;
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-num);
}
.article-body blockquote{
  margin:24px 0;
  padding:16px 22px;
  background:var(--surface-soft);
  border-left:4px solid var(--primary);
  border-radius:var(--r-sm);
  color:#3B3260;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  max-width:100%;
  height:auto;
  border-radius:18px;
  box-shadow:var(--shadow-light);
  margin:22px 0;
}
.article-body a{color:var(--primary);font-weight:600;border-bottom:1px solid rgba(123,77,255,.35);}
.article-body a:hover{color:var(--primary-2);border-color:var(--primary-2);}
.article-body strong{color:var(--text-strong);font-weight:800;}
.article-body hr{
  border:none;
  height:1px;
  background:var(--line-light);
  margin:32px 0;
}
.article-body table{
  display:block;
  width:100%;
  max-width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  font-size:15px;
  margin:22px 0;
}
.article-body th,
.article-body td{
  border:1px solid var(--line-light);
  padding:10px 14px;
  text-align:left;
  min-width:120px;
}
.article-body thead th{background:rgba(123,77,255,.09);font-weight:700;color:var(--text-strong);}
.article-body tbody tr:nth-child(even){background:var(--surface-soft);}
.article-body code{
  font-family:var(--font-num);
  font-size:14px;
  background:rgba(123,77,255,.1);
  color:#4A2FBF;
  padding:2px 6px;
  border-radius:6px;
}
.article-body pre{
  background:var(--bg-deep);
  color:var(--text-invert);
  padding:18px 20px;
  border-radius:var(--r-sm);
  overflow-x:auto;
  margin:22px 0;
}
.article-body pre code{background:none;color:inherit;padding:0;}

.article-tags{
  max-width:760px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:44px;
  padding-top:28px;
  border-top:1px solid var(--line-light);
}
.article-tags .tags-label{
  font-size:14px;
  font-weight:700;
  color:var(--text-muted);
  margin-right:4px;
}
.article-foot-actions{
  max-width:760px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.empty-state{
  max-width:640px;
  padding:48px 32px;
  border-radius:var(--r-lg);
  border:1px dashed rgba(123,77,255,.4);
  background:var(--surface-soft);
  text-align:center;
}
.empty-state .empty-title{
  font-size:22px;
  font-weight:800;
  color:var(--text-strong);
  margin-bottom:10px;
}
.empty-state p{color:var(--text-muted);margin-bottom:22px;}

/* ===== 分类导流卡 ===== */
.grid-cat{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:24px;
}
.cat-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:#FFFFFF;
  border:1px solid var(--line-light);
  box-shadow:var(--shadow-light);
  transition:transform 240ms var(--ease),box-shadow 240ms var(--ease);
}
.cat-card:hover{
  transform:translateY(-4px);
  box-shadow:0 18px 42px rgba(24,16,60,.14);
}
.cat-cover{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
}
.cat-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 320ms var(--ease);
}
.cat-card:hover .cat-cover img{transform:scale(1.04);}
.cat-cover::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(15,10,30,0) 42%,rgba(15,10,30,.72) 100%);
}
.cat-cover .cat-badge{
  position:absolute;
  top:14px;
  left:14px;
  z-index:2;
}
.cat-body{padding:22px 24px 26px;}
.cat-body h3{
  font-size:20px;
  font-weight:800;
  color:var(--text-strong);
  margin-bottom:10px;
}
.cat-body p{
  font-size:15px;
  line-height:1.8;
  color:var(--text-muted);
  margin-bottom:18px;
}

/* ===== FAQ ===== */
.faq-wrap{
  max-width:880px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.faq-item{
  border-radius:16px;
  border:1px solid var(--line-light);
  background:#FFFFFF;
  box-shadow:var(--shadow-light);
  overflow:hidden;
  transition:border-color 220ms var(--ease);
}
.faq-item[open]{border-color:rgba(123,77,255,.4);}
.faq-item summary{
  position:relative;
  list-style:none;
  cursor:pointer;
  padding:20px 56px 20px 24px;
  font-size:17px;
  font-weight:700;
  color:var(--text-strong);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:4px;
  border-radius:4px;
  background:var(--grad-main);
  opacity:0;
  transition:opacity 220ms var(--ease);
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary::after{
  content:"";
  position:absolute;
  right:24px;
  top:50%;
  width:10px;
  height:10px;
  border-right:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:translateY(-70%) rotate(45deg);
  transition:transform 240ms var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-answer{
  padding:0 24px 22px;
  font-size:16px;
  line-height:1.8;
  color:var(--text-muted);
}

/* ===== CTA ===== */
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--grad-main);
  box-shadow:0 26px 60px rgba(70,40,160,.4);
  padding:clamp(32px,5vw,56px);
  color:#FFFFFF;
}
.cta-card::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  opacity:.18;
  mix-blend-mode:screen;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:32px;
  align-items:center;
}
.cta-inner h2{
  font-size:clamp(24px,3.2vw,36px);
  line-height:1.25;
  font-weight:900;
  letter-spacing:-.01em;
  margin-bottom:12px;
}
.cta-inner p{
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.88);
  max-width:560px;
}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.cta-actions{
  display:flex;
  flex-direction:column;
  gap:14px;
  justify-content:center;
}
.cta-actions .btn{width:100%;}
@media(min-width:520px) and (max-width:1023px){
  .cta-actions{flex-direction:row;flex-wrap:wrap;}
  .cta-actions .btn{width:auto;flex:1 1 auto;}
}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--bg-deep);
  color:var(--text-invert-soft);
  padding:clamp(56px,7vw,80px) 0 0;
  border-top:1px solid rgba(123,77,255,.2);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.footer-brand .brand-text{font-size:18px;}
.footer-grid p{
  font-size:15px;
  line-height:1.8;
  max-width:340px;
}
.footer-title{
  font-size:15px;
  font-weight:800;
  color:#FFFFFF;
  margin-bottom:16px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:14px;
}
.footer-links a{
  color:var(--text-invert-soft);
  transition:color 220ms var(--ease);
}
.footer-links a:hover{color:var(--primary-2);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 28px;
  border-top:1px solid rgba(185,178,216,.14);
  font-size:13px;
  color:rgba(185,178,216,.78);
}

/* ===== 响应式 ===== */
@media(max-width:1023px){
  .nav-search{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-inner{grid-template-columns:1fr;}
}
@media(max-width:899px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{grid-template-columns:auto 1fr;height:56px;}
  .nav-cta{display:none;}
  .article-hero{padding-top:calc(56px + 28px);}
}
@media(max-width:639px){
  .footer-grid{grid-template-columns:1fr;}
  .article-foot-actions .btn{width:100%;}
  .article-tags{margin-top:34px;}
  .empty-state{padding:36px 22px;}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .cat-card:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --bg-deep:#0F0A1E;
  --bg-deep-2:#191134;
  --surface:#FFFFFF;
  --surface-soft:#F6F3FF;
  --primary:#7B4DFF;
  --primary-2:#22D3C5;
  --grad-main:linear-gradient(120deg,#7B4DFF 0%,#22D3C5 100%);
  --accent:#FF8A3D;
  --badge:#FFD166;
  --badge-text:#2A1B00;
  --text-invert:#F5F2FF;
  --text-invert-2:#B9B2D8;
  --text-strong:#14102A;
  --text-muted:#6B6588;
  --line-dark:rgba(123,77,255,.24);
  --line-light:rgba(20,16,42,.08);
  --r-lg:28px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-dark:0 18px 48px rgba(70,40,160,.45);
  --shadow-light:0 10px 30px rgba(24,16,60,.08);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:ui-monospace,"DIN Alternate",monospace;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text-strong);
  background:var(--surface-soft);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{border:0;background:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
:focus-visible{outline:2px solid var(--primary-2);outline-offset:2px;border-radius:8px;}

/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(15,10,30,.95);
  box-shadow:0 1px 0 rgba(123,77,255,.3),0 12px 32px rgba(8,4,20,.5);
}
.nav-inner{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  align-items:center;
  gap:20px;
  height:var(--nav-h);
}
.nav-left{display:flex;align-items:center;gap:26px;min-width:0;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--text-invert);font-weight:800;font-size:17px;
  letter-spacing:.01em;white-space:nowrap;
  transition:opacity .22s ease;
}
.brand:hover{opacity:.86;}
.brand-mark{
  position:relative;flex:none;width:26px;height:26px;border-radius:9px;
  background:var(--grad-main);
  box-shadow:0 0 0 1px rgba(123,77,255,.45),0 8px 20px rgba(123,77,255,.45);
}
.brand-mark::after{
  content:"";position:absolute;inset:7px;border-radius:4px;background:rgba(15,10,30,.86);
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--text-invert-2);
  transition:color .22s ease,background .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad-main);transform:scaleX(0);transform-origin:left;
  transition:transform .26s cubic-bezier(.22,.61,.36,1);
}
.nav-link:hover{color:var(--text-invert);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--text-invert);background:rgba(123,77,255,.3);}
.nav-link.is-active::after{transform:scaleX(0);}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:14px;}
.nav-search{
  display:flex;align-items:center;height:38px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line-dark);
  background:rgba(245,242,255,.08);
  transition:border-color .22s ease,background .22s ease;
}
.nav-search input{
  width:150px;border:0;background:none;outline:none;
  color:var(--text-invert);font-size:14px;
}
.nav-search input::placeholder{color:rgba(185,178,216,.72);}
.nav-search:focus-within{border-color:rgba(34,211,197,.7);background:rgba(245,242,255,.13);}
.nav-toggle{
  display:none;width:40px;height:40px;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;
  border-radius:12px;border:1px solid var(--line-dark);
}
.nav-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;
  background:var(--text-invert);
  transition:transform .24s ease,opacity .24s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ============ 移动抽屉 ============ */
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:min(300px,84vw);
  background:var(--bg-deep-2);
  border-left:1px solid var(--line-dark);
  padding:88px 22px 32px;
  z-index:80;
  transform:translateX(102%);
  transition:transform .32s cubic-bezier(.22,.61,.36,1);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-link{
  display:block;padding:14px 16px;margin-bottom:6px;
  border-radius:14px;font-size:16px;font-weight:600;
  color:var(--text-invert-2);
  transition:background .22s ease,color .22s ease;
}
.drawer-link:hover,.drawer-link.is-active{background:rgba(123,77,255,.26);color:#fff;}
.drawer-cta{margin-top:18px;width:100%;}
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(8,4,20,.62);
  opacity:0;visibility:hidden;z-index:70;
  transition:opacity .28s ease,visibility .28s ease;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--r-pill);
  font-size:16px;font-weight:700;white-space:nowrap;
  transition:transform .22s cubic-bezier(.22,.61,.36,1),box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn:active{transform:translateY(1px) scale(.99);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-accent{background:var(--accent);color:#2A1200;box-shadow:0 10px 26px rgba(255,138,61,.32);}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,138,61,.46);}
.btn-primary{background:var(--grad-main);color:#fff;box-shadow:0 12px 32px rgba(123,77,255,.3);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(123,77,255,.3),0 14px 36px rgba(123,77,255,.42);}
.btn-ghost{border:1.5px solid rgba(245,242,255,.42);color:var(--text-invert);background:transparent;}
.btn-ghost:hover{border-color:var(--primary-2);color:#fff;transform:translateY(-2px);}
.btn-outline{border:1.5px solid var(--line-light);color:var(--text-strong);background:#fff;}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:34px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;
}
.badge b{font-family:var(--font-num);font-size:18px;font-weight:800;}
.badge-amber{background:var(--badge);color:var(--badge-text);}
.badge-ghost{background:rgba(245,242,255,.1);border:1px solid var(--line-dark);color:var(--text-invert);}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:var(--r-pill);background:rgba(123,77,255,.1);
  color:var(--primary);font-size:13px;font-weight:600;
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--primary);
}
.text-link span{transition:transform .24s cubic-bezier(.22,.61,.36,1);}
.text-link:hover span{transform:translateX(4px);}

/* ============ 首屏横幅 ============ */
.page-hero{
  position:relative;overflow:hidden;
  display:flex;align-items:flex-end;
  background:var(--bg-deep);
  padding:56px 0 60px;
  min-height:clamp(320px,38vw,470px);
}
.page-hero .hero-media{
  position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.18;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 82% 18%,rgba(34,211,197,.34) 0%,rgba(34,211,197,0) 46%),
             radial-gradient(circle at 12% 88%,rgba(123,77,255,.42) 0%,rgba(123,77,255,0) 52%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(15,10,30,.95) 0%,rgba(25,17,52,.84) 42%,rgba(123,77,255,.4) 78%,rgba(34,211,197,.3) 100%);
}
.hero-inner{position:relative;z-index:3;}
.crumbs{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--text-invert-2);margin-bottom:20px;
}
.crumbs a{color:var(--text-invert-2);transition:color .22s ease;}
.crumbs a:hover{color:var(--primary-2);}
.crumb-sep{color:rgba(185,178,216,.55);}
.crumb-current{color:#fff;font-weight:600;}
.page-hero h1{
  font-size:clamp(30px,5vw,52px);
  line-height:1.15;font-weight:900;letter-spacing:-.02em;
  color:var(--text-invert);max-width:20ch;
}
.hero-lede{
  margin-top:18px;max-width:56ch;
  font-size:clamp(15px,1.6vw,18px);line-height:1.75;
  color:var(--text-invert-2);
}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ============ 分类切换胶囊 ============ */
.pillbar{background:var(--surface);border-bottom:1px solid var(--line-light);}
.pillbar-inner{
  display:flex;align-items:center;gap:12px;
  padding:16px 0;overflow-x:auto;
}
.pillbar-inner::-webkit-scrollbar{display:none;}
.pillbar-inner{scrollbar-width:none;}
.pillbar-label{flex:none;font-size:14px;color:var(--text-muted);}
.pill{
  flex:none;display:inline-flex;align-items:center;height:38px;padding:0 20px;
  border-radius:var(--r-pill);border:1px solid var(--line-light);
  background:var(--surface-soft);color:var(--text-muted);
  font-size:15px;font-weight:600;
  transition:transform .22s ease,border-color .22s ease,color .22s ease,background .22s ease,box-shadow .22s ease;
}
.pill:hover{border-color:rgba(123,77,255,.5);color:var(--primary);transform:translateY(-2px);}
.pill.is-active{
  background:var(--grad-main);color:#fff;border-color:transparent;
  box-shadow:0 10px 24px rgba(123,77,255,.3);
}

/* ============ 通用板块 ============ */
.section{padding:clamp(56px,8vw,104px) 0;}
.section-white{background:var(--surface);}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;margin-bottom:40px;
}
.sec-head h2{font-size:clamp(24px,3.2vw,36px);line-height:1.25;font-weight:800;letter-spacing:-.01em;}
.sec-head p{margin-top:12px;font-size:15px;color:var(--text-muted);max-width:62ch;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  margin-bottom:12px;font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--primary);
}
.sec-eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad-main);}

/* ============ 玩法大卡网格 ============ */
.game-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.game-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line-light);
  border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-light);
  transition:transform .24s cubic-bezier(.22,.61,.36,1),box-shadow .24s ease,border-color .24s ease;
}
.game-card:hover{
  transform:translateY(-4px);
  border-color:rgba(123,77,255,.3);
  box-shadow:0 22px 48px rgba(24,16,60,.16);
}
.game-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-deep-2);}
.game-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.22,.61,.36,1);}
.game-card:hover .game-cover img{transform:scale(1.04);}
.game-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,10,30,0) 42%,rgba(15,10,30,.6) 100%);
}
.cover-flag{
  position:absolute;top:14px;left:14px;z-index:2;
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(15,10,30,.72);
  border:1px solid rgba(34,211,197,.45);
  color:#EAFBF8;font-size:13px;font-weight:700;
}
.game-body{
  display:flex;flex-direction:column;gap:14px;flex:1;
  padding:22px 24px 24px;
}
.game-body h3{font-size:20px;line-height:1.4;font-weight:700;}
.game-body p{font-size:15px;line-height:1.8;color:var(--text-muted);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line-light);
}
.mini-badges{display:flex;flex-wrap:wrap;gap:8px;}
.mini-badge{
  display:inline-flex;align-items:center;gap:5px;
  height:30px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--surface-soft);border:1px solid var(--line-light);
  font-size:13px;color:var(--text-muted);
}
.mini-badge b{font-family:var(--font-num);font-size:15px;font-weight:800;color:var(--text-strong);}

/* ============ 暗色节奏板块 ============ */
.section-dark{position:relative;overflow:hidden;background:var(--bg-deep);color:var(--text-invert);}
.section-dark::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-3.png) center/cover no-repeat;
  opacity:.12;
}
.section-dark::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,10,30,.94) 0%,rgba(25,17,52,.6) 60%,rgba(15,10,30,.9) 100%);
}
.section-dark .container{position:relative;z-index:2;}
.section-dark .sec-head h2{color:var(--text-invert);}
.section-dark .sec-head p{color:var(--text-invert-2);}
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.split h2{font-size:clamp(24px,3.2vw,36px);line-height:1.25;font-weight:800;}
.split > div > p{margin-top:16px;font-size:15px;line-height:1.85;color:var(--text-invert-2);}
.ticks{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.ticks li{position:relative;padding-left:26px;font-size:15px;color:var(--text-invert-2);}
.ticks li::before{
  content:"";position:absolute;left:0;top:10px;width:10px;height:10px;border-radius:50%;
  background:var(--primary-2);box-shadow:0 0 0 4px rgba(34,211,197,.16);
}
.stat-board{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.stat{
  padding:22px 20px;border-radius:var(--r-md);
  background:rgba(245,242,255,.06);border:1px solid var(--line-dark);
  transition:transform .24s ease,border-color .24s ease,background .24s ease;
}
.stat:hover{transform:translateY(-3px);border-color:rgba(34,211,197,.5);background:rgba(245,242,255,.09);}
.stat-num{
  display:block;font-family:var(--font-num);font-size:30px;font-weight:800;line-height:1.15;
  background:var(--grad-main);-webkit-background-clip:text;background-clip:text;
  color:transparent;-webkit-text-fill-color:transparent;
}
.stat-num em{
  margin-left:6px;font-size:14px;font-style:normal;font-weight:700;
  -webkit-text-fill-color:var(--primary-2);color:var(--primary-2);
}
.stat-label{display:block;margin-top:8px;font-size:14px;color:var(--text-invert-2);}

/* ============ 口碑条 ============ */
.marquee{
  position:relative;overflow:hidden;padding:8px 0;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 7%,#000 93%,transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 7%,#000 93%,transparent 100%);
}
.marquee-track{display:flex;width:max-content;animation:marquee-slide 46s linear infinite;}
.marquee:hover .marquee-track{animation-play-state:paused;}
@keyframes marquee-slide{
  from{transform:translateX(0);}
  to{transform:translateX(-50%);}
}
.voice-card{
  flex:0 0 auto;width:326px;margin-right:20px;padding:20px;
  background:var(--surface);border:1px solid var(--line-light);
  border-radius:var(--r-md);box-shadow:var(--shadow-light);
}
.voice-head{display:flex;align-items:center;gap:12px;}
.avatar{
  flex:none;width:42px;height:42px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--grad-main);color:#fff;font-size:16px;font-weight:800;
}
.voice-name{font-size:15px;font-weight:700;}
.voice-meta{font-size:12px;color:var(--text-muted);}
.stars{margin-left:auto;color:#FFB020;font-size:13px;letter-spacing:2px;}
.voice-text{
  margin-top:14px;font-size:15px;line-height:1.75;color:var(--text-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  position:relative;overflow:hidden;
  background:var(--surface-soft);border:1px solid var(--line-light);
  border-radius:16px;margin-bottom:14px;
  transition:border-color .24s ease,box-shadow .24s ease,background .24s ease;
}
.faq-item:hover{border-color:rgba(123,77,255,.32);}
.faq-item[open]{background:#fff;border-color:rgba(123,77,255,.36);box-shadow:0 12px 30px rgba(24,16,60,.08);}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--grad-main);opacity:0;transition:opacity .24s ease;
}
.faq-item[open]::before{opacity:1;}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px 20px 28px;
  font-size:17px;font-weight:700;cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q::after{
  content:"+";flex:none;font-family:var(--font-num);font-size:22px;font-weight:700;
  color:var(--primary);transition:transform .24s ease;
}
.faq-item[open] .faq-q::after{content:"−";}
.faq-a{padding:0 28px 24px;font-size:16px;line-height:1.85;color:var(--text-muted);}

/* ============ CTA ============ */
.cta-card{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.35fr 1fr;gap:36px;align-items:center;
  padding:44px;border-radius:var(--r-lg);
  background:var(--grad-main);
  box-shadow:0 24px 60px rgba(123,77,255,.35);
}
.cta-card::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  opacity:.16;
}
.cta-card > *{position:relative;z-index:2;}
.cta-card h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:800;color:#fff;}
.cta-card p{margin-top:14px;max-width:52ch;font-size:15px;line-height:1.8;color:rgba(255,255,255,.9);}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.cta-badge{
  display:inline-flex;align-items:center;gap:5px;height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(15,10,30,.28);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13px;font-weight:600;
}
.cta-badge b{font-family:var(--font-num);font-size:16px;font-weight:800;}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start;}
.back-row{margin-top:32px;display:flex;justify-content:center;}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);color:var(--text-invert-2);padding-top:64px;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  margin-bottom:16px;color:var(--text-invert);font-size:17px;font-weight:800;
}
.footer-grid p{font-size:14px;line-height:1.85;color:rgba(185,178,216,.82);max-width:34ch;}
.footer-title{margin-bottom:16px;font-size:15px;font-weight:700;color:var(--text-invert);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-invert-2);transition:color .22s ease;}
.footer-links a:hover{color:var(--primary-2);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:22px 0;border-top:1px solid var(--line-dark);
  font-size:13px;color:rgba(185,178,216,.75);
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .nav-search{display:none;}
}
@media (max-width:960px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .game-grid{grid-template-columns:1fr;gap:20px;}
  .split{grid-template-columns:1fr;gap:36px;}
  .cta-card{grid-template-columns:1fr;padding:32px;}
  .cta-actions{flex-direction:row;flex-wrap:wrap;align-items:center;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:640px){
  .nav-inner{grid-template-columns:1fr auto;height:56px;}
  :root{--nav-h:56px;}
  .page-hero{padding:44px 0 48px;}
  .game-body{padding:20px 18px 22px;}
  .voice-card{width:272px;}
  .stat-board{grid-template-columns:1fr;gap:12px;}
  .footer-grid{grid-template-columns:1fr;}
  .sec-head{margin-bottom:28px;}
  .btn{height:46px;padding:0 22px;font-size:15px;}
}
@media (max-width:400px){
  .nav-right{gap:8px;}
  .btn-sm{height:36px;padding:0 14px;font-size:13px;}
}
@media (prefers-reduced-motion: reduce){
  .marquee-track{animation:none;}
  .game-card,.btn,.pill,.nav-link,.stat,.game-cover img{transition:none;}
  .game-card:hover{transform:none;}
  .game-card:hover .game-cover img{transform:none;}
}