/* roulang page: index */
:root{
  --ink-0:#0B0B10;--ink-1:#16161E;--ink-2:#1E1E28;
  --line-0:rgba(255,255,255,0.08);--line-1:rgba(255,255,255,0.16);
  --violet:#8B5CF6;--rose:#F43F5E;--teal:#2DD4BF;
  --text-0:#EDEDF0;--text-1:#9CA0B0;--text-2:#6B7080;
  --r-lg:16px;--r-md:10px;--r-sm:6px;
  --shadow-card:0 4px 24px rgba(0,0,0,0.24);
  --shadow-hover:0 12px 40px rgba(0,0,0,0.36);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  --font-num:"DIN Alternate","Bahnschrift","Arial Narrow",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--ink-0);color:var(--text-0);font-family:var(--font-sans);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit}
input{font-family:inherit}
ul,ol{list-style:none}
::selection{background:rgba(139,92,246,0.35)}
.container{max-width:1224px;margin:0 auto;padding:0 24px}
@media(max-width:768px){.container{padding:0 16px}}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:8px;font-size:1rem;font-weight:600;transition:all .25s ease;white-space:nowrap;cursor:pointer}
.btn-primary{background:var(--violet);color:#fff}
.btn-primary:hover{background:#9b6cf7;filter:brightness(1.05);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--text-0);border:1px solid var(--text-0)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal);background:rgba(45,212,191,0.08)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:36px;padding:0 20px;font-size:.875rem;border-radius:6px}
.btn:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.btn .fa-solid,.btn .fa-regular{font-size:.9em}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:100;height:72px;background:rgba(11,11,16,0.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line-0)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{width:40px;height:40px;border-radius:10px;background:var(--ink-1);border:1px solid var(--line-0);display:flex;align-items:center;justify-content:center;gap:2px;flex-shrink:0}
.logo-mark .bar{width:5px;border-radius:2px}
.logo-mark .bar-1{height:22px;background:var(--violet);transform:rotate(18deg) translateX(-1px)}
.logo-mark .bar-2{height:14px;background:var(--rose)}
.logo-mark .bar-3{height:22px;background:var(--teal);transform:rotate(-18deg) translateX(1px)}
.brand-name{font-size:1.15rem;font-weight:800;letter-spacing:-0.01em}
.vii-text{color:var(--violet)}
.main-nav{display:flex;align-items:center;gap:32px;flex:1;justify-content:center}
.main-nav .nav-link{font-size:.9375rem;font-weight:500;color:var(--text-1);padding:8px 0;position:relative;transition:color .2s ease}
.main-nav .nav-link::after{content:'';position:absolute;left:0;bottom:0;width:100%;height:2px;border-radius:2px;background:var(--violet);transform:scaleX(0);transform-origin:center;transition:transform .25s ease}
.main-nav .nav-link:hover{color:var(--text-0);background:rgba(255,255,255,0.03);border-radius:4px;padding:8px 10px;margin:-8px -10px}
.main-nav .nav-link:hover::after{transform:scaleX(1)}
.main-nav .nav-link.active{color:var(--violet)}
.main-nav .nav-link.active::after{transform:scaleX(1)}
.header-cta{flex-shrink:0}
.nav-toggle{display:none;width:40px;height:40px;border-radius:8px;align-items:center;justify-content:center;flex-direction:column;gap:5px;transition:background .2s ease}
.nav-toggle:hover{background:var(--ink-2)}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text-0);border-radius:2px;transition:all .3s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动端抽屉 */
.drawer{position:fixed;top:0;right:0;width:100%;height:100%;background:var(--ink-0);z-index:99;transform:translateX(100%);transition:transform .35s ease;padding:88px 32px 32px;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-nav{display:flex;flex-direction:column;gap:24px}
.drawer-nav a{font-size:1.25rem;font-weight:600;color:var(--text-1);padding:8px 0;border-bottom:1px solid var(--line-0);transition:color .2s}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--violet)}
.drawer-close{position:absolute;top:18px;right:20px;width:36px;height:36px;border-radius:8px;background:var(--ink-2);display:flex;align-items:center;justify-content:center;transition:transform .3s ease}
.drawer-close:hover{transform:rotate(90deg)}
.drawer-cta{margin-top:32px}

/* Hero */
.hero{position:relative;padding:72px 0 96px;overflow:hidden}
.hero-deco-vii{position:absolute;right:-30px;top:-40px;font-size:240px;font-family:var(--font-num);color:var(--text-0);opacity:0.06;font-weight:800;pointer-events:none;letter-spacing:-0.05em;line-height:1}
.hero-inner{display:grid;grid-template-columns:55% 45%;gap:48px;align-items:center;position:relative}
.hero-content{opacity:0;animation:fadeUp .6s ease forwards}
.hero-content>*{opacity:0;animation:fadeUp .6s ease forwards}
.hero-content>*:nth-child(1){animation-delay:.08s}
.hero-content>*:nth-child(2){animation-delay:.16s}
.hero-content>*:nth-child(3){animation-delay:.24s}
.hero-content>*:nth-child(4){animation-delay:.32s}
.hero-content>*:nth-child(5){animation-delay:.40s}
.hero-content>*:nth-child(6){animation-delay:.48s}
.hero-content>*:nth-child(7){animation-delay:.56s}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.live-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(244,63,94,0.15);border:1px solid rgba(244,63,94,0.25);border-radius:999px;padding:6px 16px;font-size:.8125rem;font-weight:600;color:var(--rose);margin-bottom:20px}
.live-dot{width:6px;height:6px;border-radius:50%;background:var(--rose);animation:pulse 1.6s ease infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(0.8)}}
.hero h1{font-size:clamp(2rem,4vw,3.2rem);line-height:1.2;font-weight:800;letter-spacing:-0.01em;margin-bottom:16px}
.hero-subtitle{font-size:1.125rem;color:var(--text-1);line-height:1.7;margin-bottom:28px;max-width:480px}
.hero-divider{width:80px;height:2px;background:linear-gradient(120deg,var(--violet),var(--teal));border-radius:2px;margin-bottom:28px}

/* 倒计时 */
.countdown{display:flex;align-items:center;gap:12px;margin-bottom:28px}
.countdown-item{width:88px;height:92px;background:var(--ink-1);border-radius:12px;border:1px solid var(--line-0);display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;overflow:hidden}
.count-num{font-family:var(--font-num);font-size:40px;font-weight:800;line-height:1;color:var(--text-0);font-variant-numeric:tabular-nums;transition:opacity .3s ease}
.count-num.flash{opacity:.6}
.count-label{font-size:.75rem;color:var(--text-2);margin-top:6px;font-weight:500}
.vii-mark{position:absolute;top:4px;left:6px;font-size:9px;font-family:var(--font-num);color:rgba(255,255,255,0.15);font-weight:700;letter-spacing:0.02em}
.count-sep{font-size:28px;font-weight:700;color:var(--rose);font-family:var(--font-num);line-height:1;margin-top:-20px}

/* 看点列表 */
.highlights{display:flex;flex-direction:column;gap:10px;margin-bottom:28px}
.highlights li{display:flex;align-items:center;gap:12px;font-size:.9375rem;color:var(--text-1);line-height:1.6}
.highlights li::before{content:'';width:3px;height:16px;border-radius:2px;flex-shrink:0}
.highlights li:nth-child(1)::before{background:var(--violet)}
.highlights li:nth-child(2)::before{background:var(--rose)}
.highlights li:nth-child(3)::before{background:var(--teal)}

.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:12px}
.hero-note{font-size:.8125rem;color:var(--text-2)}

/* Hero封面 */
.hero-cover{position:relative;border-radius:20px;overflow:hidden;height:400px;box-shadow:var(--shadow-card);opacity:0;animation:fadeUp .6s .3s ease forwards}
.hero-cover img{width:100%;height:100%;object-fit:cover}
.hero-cover::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--violet),var(--teal));z-index:2}
.hero-cover::after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--violet),var(--teal));z-index:2}
.cover-gradient{position:absolute;bottom:0;left:0;right:0;height:60px;background:linear-gradient(to top,rgba(11,11,16,0.55),rgba(11,11,16,0));z-index:1}
.cover-play{position:absolute;bottom:24px;right:24px;width:56px;height:56px;border-radius:18px;background:rgba(255,255,255,0.18);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;z-index:2;transition:background .25s,transform .25s;cursor:pointer}
.cover-play:hover{background:rgba(255,255,255,0.28);transform:scale(1.05)}
.cover-badge{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:8px;background:var(--violet);color:#fff;font-family:var(--font-num);font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center;z-index:2}

/* 流程带 */
.process{padding:64px 0;border-top:1px solid var(--line-0);border-bottom:1px solid var(--line-0)}
.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.process-item{padding:32px;border-radius:16px;background:transparent;transition:background .25s,box-shadow .25s}
.process-item:hover{background:var(--ink-1);box-shadow:var(--shadow-card)}
.process-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.process-icon.violet{background:rgba(139,92,246,0.15);color:var(--violet)}
.process-icon.rose{background:rgba(244,63,94,0.15);color:var(--rose)}
.process-icon.teal{background:rgba(45,212,191,0.15);color:var(--teal)}
.process-icon svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.process-item h3{font-size:1.125rem;font-weight:700;margin-bottom:8px;color:var(--text-0)}
.process-item p{font-size:.875rem;color:var(--text-1);line-height:1.6;margin-bottom:4px}

/* 内容动态 */
.latest-section{padding:96px 0}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:40px}
.section-header h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:750;letter-spacing:-0.005em}
.more-link{font-size:.9rem;font-weight:600;color:var(--text-1);display:inline-flex;align-items:center;gap:4px;transition:color .2s}
.more-link:hover{color:var(--violet)}
.more-link:hover .fa-arrow-right{transform:translateX(4px)}
.more-link .fa-arrow-right{transition:transform .25s ease;font-size:.8em}
.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* 内容卡片 */
.content-card{background:var(--ink-1);border-radius:16px;overflow:hidden;border:1px solid var(--line-0);transition:transform .25s ease,box-shadow .25s ease;position:relative;display:flex;flex-direction:column}
.content-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--violet);opacity:0;transition:opacity .25s ease;z-index:3}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.content-card:hover::before{opacity:1}
.content-card:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.content-card:hover .card-media img{transform:scale(1.04)}
.card-badge{position:absolute;top:12px;left:12px;background:rgba(237,237,240,0.92);color:var(--violet);font-size:.75rem;font-weight:700;padding:4px 10px;border-radius:6px;z-index:2}
.card-body{padding:20px;display:flex;flex-direction:column;flex:1}
.card-cat{font-size:.75rem;font-weight:600;color:var(--rose);margin-bottom:8px;letter-spacing:0.03em}
.card-body h3{font-size:1.125rem;font-weight:700;line-height:1.45;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .2s}
.content-card:hover .card-body h3{color:var(--violet)}
.card-body p{font-size:.875rem;color:var(--text-1);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px;flex:1}
.card-footer{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line-0);padding-top:14px}
.meta-time{font-size:.8rem;color:var(--text-2);display:inline-flex;align-items:center;gap:6px}
.meta-time .fa-regular,.meta-time .fa-solid{font-size:.85em}
.read-link{font-size:.8rem;font-weight:600;color:var(--teal)}
.read-link:hover{text-decoration:underline}

/* 空态 */
.empty-state{grid-column:1/-1;border:2px dashed var(--line-1);border-radius:16px;padding:80px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px;background:var(--ink-1)}
.empty-icon{width:56px;height:56px;border-radius:14px;background:var(--ink-2);display:flex;align-items:center;justify-content:center;color:var(--text-2);font-size:24px}
.empty-state p{color:var(--text-1);font-size:.9375rem}

/* 分类导览 */
.category-guide{padding:0 0 96px}
.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.guide-card{background:var(--ink-1);border-radius:16px;border:1px solid var(--line-0);padding:40px;display:block;transition:transform .25s ease,box-shadow .25s ease,border-color .25s}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--violet)}
.guide-card:hover .guide-btn{color:var(--violet)}
.guide-card:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.guide-card h3{font-size:1.3rem;font-weight:700;margin-bottom:12px;color:var(--text-0)}
.guide-card p{font-size:.9375rem;color:var(--text-1);line-height:1.7;margin-bottom:20px}
.guide-btn{font-size:.9rem;font-weight:600;color:var(--text-0);display:inline-flex;align-items:center;gap:4px;transition:color .2s}
.guide-btn .fa-arrow-right{font-size:.8em;transition:transform .25s}
.guide-card:hover .guide-btn .fa-arrow-right{transform:translateX(4px)}

/* FAQ */
.faq-section{padding:96px 0;border-top:1px solid var(--line-0);background:#0D0D13}
.faq-wrapper{display:grid;grid-template-columns:280px 1fr;gap:64px}
.faq-title h2{font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:750;letter-spacing:-0.005em;margin-bottom:12px}
.faq-title p{font-size:.9375rem;color:var(--text-1);line-height:1.7}
.faq-list{border-top:1px solid var(--line-0)}
.faq-item{border-bottom:1px solid var(--line-0)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:24px 8px;font-size:1rem;font-weight:600;color:var(--text-0);text-align:left;transition:background .2s;border-radius:4px}
.faq-question:hover{background:rgba(255,255,255,0.02)}
.faq-question:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.faq-icon{width:18px;height:18px;position:relative;flex-shrink:0;margin-left:12px}
.faq-icon::before,.faq-icon::after{content:'';position:absolute;background:var(--text-1);border-radius:1px;transition:all .25s ease}
.faq-icon::before{width:18px;height:2px;top:8px;left:0}
.faq-icon::after{width:2px;height:18px;top:0;left:8px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.open .faq-icon::before{background:var(--teal)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-answer p{padding:0 8px 24px;font-size:.9375rem;color:var(--text-1);line-height:1.7}

/* 页脚 */
.site-footer{background:#07070B;border-top:1px solid var(--line-0);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:.875rem;color:var(--text-1);line-height:1.7;max-width:260px}
.footer-col h4{font-size:.9375rem;font-weight:700;color:var(--text-0);margin-bottom:20px;letter-spacing:0.02em}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:.875rem;color:var(--text-1);transition:color .2s,padding-left .2s}
.footer-col ul a:hover{color:var(--violet);padding-left:4px}
.footer-subscribe{display:flex;gap:8px;margin-bottom:16px}
.footer-subscribe input{flex:1;height:44px;background:var(--ink-2);border:1px solid var(--line-0);border-radius:8px;padding:0 14px;color:var(--text-0);font-size:.875rem;transition:border-color .2s,box-shadow .2s}
.footer-subscribe input::placeholder{color:var(--text-2)}
.footer-subscribe input:focus{outline:none;border-color:var(--violet);box-shadow:0 0 0 3px rgba(139,92,246,0.2)}
.footer-subscribe .btn{height:44px;font-size:.875rem;padding:0 18px}
.social-list{display:flex;gap:10px}
.social-list a{width:36px;height:36px;border-radius:8px;background:var(--ink-2);display:flex;align-items:center;justify-content:center;color:var(--text-1);font-size:.875rem;transition:background .2s,color .2s,transform .2s}
.social-list a:hover{background:var(--violet);color:#fff;transform:translateY(-2px)}
.consent{font-size:.75rem;color:var(--text-2);display:flex;align-items:center;gap:6px;margin-top:12px;cursor:pointer}
.consent input[type="checkbox"]{width:14px;height:14px;accent-color:var(--teal);cursor:pointer}
.footer-bottom{border-top:1px solid var(--line-0);padding:20px 0;display:flex;align-items:center;justify-content:space-between;font-size:.8125rem;color:var(--text-2)}
.footer-bottom-links{display:flex;gap:20px}
.footer-bottom-links a{color:var(--text-2);transition:color .2s}
.footer-bottom-links a:hover{color:var(--text-0)}

/* 响应式 */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-cover{height:340px}
  .content-grid{grid-template-columns:repeat(2,1fr)}
  .content-grid .content-card:nth-child(3){grid-column:1/-1}
  .content-grid .content-card:nth-child(3) .card-media{aspect-ratio:21/9}
  .guide-grid{grid-template-columns:1fr}
  .faq-wrapper{grid-template-columns:1fr;gap:32px}
  .main-nav{gap:20px}
}
@media(max-width:768px){
  .header-cta{display:none}
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .hero{padding:48px 0 64px}
  .hero h1{font-size:clamp(1.6rem,3.6vw,2.2rem)}
  .countdown{gap:6px}
  .countdown-item{width:calc(25% - 6px);min-width:64px;height:80px}
  .count-num{font-size:28px}
  .count-label{font-size:.6875rem}
  .count-sep{font-size:22px;margin-top:-16px}
  .hero-actions .btn{flex:1;padding:0 16px}
  .process-grid{grid-template-columns:1fr;gap:12px}
  .content-grid{grid-template-columns:1fr;gap:16px}
  .content-grid .content-card:nth-child(3){grid-column:auto}
  .content-grid .content-card:nth-child(3) .card-media{aspect-ratio:16/9}
  .latest-section{padding:64px 0}
  .category-guide{padding-bottom:64px}
  .faq-section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:12px;align-items:flex-start}
  .footer-bottom-links{flex-wrap:wrap}
  .process-item{padding:24px}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .hero-cover{height:260px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .hero-divider{width:60px}
  .footer-subscribe{flex-direction:column}
  .footer-subscribe .btn{width:100%}
  .social-list{flex-wrap:wrap}
  .countdown{gap:4px}
  .countdown-item{min-width:58px}
  .count-num{font-size:24px}
  .count-sep{font-size:18px}
}

/* 滚动过渡 */
.hero-to-content-transition{transition:opacity .3s ease}

/* prefers-reduced-motion */
@media(prefers-reduced-motion){
  *,*::before,*::after{animation-duration:0.01ms!important;animation-iteration-count:1!important;transition-duration:0.2s!important}
  html{scroll-behavior:auto}
  .hero-content>*{opacity:1;animation:none}
  .hero-cover{opacity:1;animation:none}
}

/* roulang page: article */
:root {
  --ink-0: #0B0B10;
  --ink-1: #16161E;
  --ink-2: #1E1E28;
  --line-0: rgba(255,255,255,0.08);
  --line-1: rgba(255,255,255,0.16);
  --violet: #8B5CF6;
  --rose: #F43F5E;
  --teal: #2DD4BF;
  --text-0: #EDEDF0;
  --text-1: #9CA0B0;
  --text-2: #6B7080;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.24);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.36);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Arial Narrow", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--ink-0);
  color: var(--text-0);
  font-family: var(--font-main);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; background: none; color: inherit; }
ul, ol { list-style: none; }
.container { max-width: 1224px; margin: 0 auto; padding: 0 24px; }

.site-header {
  position: sticky; top: 0; z-index: 100;
  height: 72px; background: rgba(11,11,16,0.82);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-0);
}
.header-inner { display: flex; align-items: center; height: 72px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark { display: inline-flex; align-items: flex-end; width: 40px; height: 40px; border-radius: 10px; background: var(--ink-1); padding: 6px; gap: 3px; }
.logo-mark .bar { width: 8px; border-radius: 3px; display: block; }
.logo-mark .bar-1 { height: 16px; background: var(--violet); }
.logo-mark .bar-2 { height: 26px; background: var(--rose); }
.logo-mark .bar-3 { height: 22px; background: var(--teal); }
.brand-name { font-size: 1.25rem; font-weight: 800; letter-spacing: -0.01em; color: var(--text-0); }
.vii-text { color: var(--violet); }
.main-nav { display: flex; align-items: center; gap: 32px; margin-left: auto; }
.main-nav .nav-link {
  font-size: 0.9375rem; font-weight: 500; color: var(--text-1);
  position: relative; padding: 6px 0; transition: color 0.2s ease;
}
.main-nav .nav-link::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 100%; height: 2px; border-radius: 2px;
  background: var(--violet); transform: scaleX(0); transform-origin: left;
  transition: transform 0.2s ease;
}
.main-nav .nav-link:hover { color: var(--text-0); }
.main-nav .nav-link:hover::after { transform: scaleX(1); }
.main-nav .nav-link.active { color: var(--violet); }
.main-nav .nav-link.active::after { transform: scaleX(1); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 0 28px; border-radius: 8px;
  font-size: 1rem; font-weight: 600; cursor: pointer;
  transition: all 0.2s ease; line-height: 1; white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }
.btn-primary { background: var(--violet); color: #fff; }
.btn-primary:hover { background: #a06ff7; filter: brightness(1.05); }
.btn-primary:active { transform: translateY(1px); }
.btn-outline { background: transparent; color: var(--text-0); border: 1px solid var(--line-1); }
.btn-outline:hover { border-color: var(--teal); color: var(--teal); background: rgba(45,212,191,0.08); }
.btn-outline:active { transform: translateY(1px); }
.btn-sm { height: 36px; padding: 0 20px; font-size: 0.875rem; border-radius: 6px; }
.header-cta { margin-left: 8px; }
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 6px; width: 40px; height: 40px; border-radius: 8px; background: var(--ink-1); cursor: pointer; align-items: center; }
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--text-0); border-radius: 2px; transition: all 0.3s ease; }
.nav-toggle:hover span:nth-child(1) { transform: translateY(-1px); }
.nav-toggle:hover span:nth-child(3) { transform: translateY(1px); }
.nav-toggle.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.main { padding: 0 0 64px; }
.breadcrumb {
  max-width: 1224px; margin: 0 auto; padding: 28px 24px 0;
  font-size: 0.8125rem; color: var(--text-2);
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
}
.breadcrumb a { color: var(--text-2); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--violet); }
.breadcrumb .sep { opacity: 0.6; }
.breadcrumb .current { color: var(--text-0); }

/* 文章头部 */
.article-header {
  max-width: 900px; margin: 0 auto; padding: 40px 24px 28px;
}
.article-header h1 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 800; line-height: 1.25; letter-spacing: -0.01em;
  color: var(--text-0); margin-bottom: 20px;
}
.article-meta {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px 20px;
  font-size: 0.875rem; color: var(--text-2); margin-bottom: 24px;
}
.article-meta .meta-cat { color: var(--rose); font-weight: 600; }
.article-meta .meta-item { display: inline-flex; align-items: center; gap: 6px; }
.article-meta .meta-item i { font-size: 0.8rem; }
.article-divider { border: none; height: 1px; background: var(--line-0); max-width: 900px; margin: 0 auto; }

/* 正文 */
.article-body { max-width: 900px; margin: 0 auto; padding: 40px 24px 0; }
.article-content { max-width: 720px; margin: 0 auto; }
.article-content p {
  font-size: 1.0625rem; line-height: 1.8; color: var(--text-0);
  margin-bottom: 1.5em;
}
.article-content h2 {
  font-size: 1.6rem; font-weight: 750; color: var(--text-0);
  margin: 2em 0 0.75em; line-height: 1.35; letter-spacing: -0.005em;
}
.article-content h3 {
  font-size: 1.25rem; font-weight: 700; color: var(--text-0);
  margin: 1.6em 0 0.6em; line-height: 1.4;
}
.article-content img {
  max-width: 100%; border-radius: 12px; margin: 32px auto;
  box-shadow: var(--shadow-card);
}
.article-content blockquote {
  margin: 28px 0; padding: 20px 24px;
  background: var(--ink-1); border-left: 3px solid var(--violet);
  border-radius: 8px; color: var(--text-1); font-style: italic;
  line-height: 1.7;
}
.article-content blockquote p { margin-bottom: 0; color: var(--text-1); font-size: 1rem; }
.article-content code, .article-content .teal-mark { color: var(--teal); background: none; }
.article-content ul, .article-content ol {
  margin: 1.2em 0 1.5em; padding-left: 1.4em; color: var(--text-0);
}
.article-content ul li, .article-content ol li { margin-bottom: 0.6em; line-height: 1.8; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content a { color: var(--violet); border-bottom: 1px solid transparent; transition: border-color 0.2s; }
.article-content a:hover { border-bottom-color: var(--violet); }
.article-content table { width: 100%; border-collapse: collapse; margin: 28px 0; }
.article-content th, .article-content td { padding: 12px 14px; border: 1px solid var(--line-0); text-align: left; font-size: 0.9375rem; }
.article-content th { background: var(--ink-1); color: var(--text-0); font-weight: 600; }
.article-content td { color: var(--text-1); }

/* 标签 */
.article-tags { max-width: 720px; margin: 48px auto 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 14px; border-radius: 999px;
  background: var(--ink-2); color: var(--text-1);
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.04em;
  transition: all 0.2s ease;
}
.tag:hover { background: rgba(139,92,246,0.2); color: var(--text-0); }
.tag:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

/* 相关推荐 */
.related-section { max-width: 1224px; margin: 64px auto 0; padding: 0 24px; }
.related-section .section-title {
  font-size: 1.3rem; font-weight: 750; color: var(--text-0);
  margin-bottom: 24px; display: flex; align-items: center; gap: 12px;
}
.related-section .section-title::before {
  content: ""; width: 4px; height: 22px; border-radius: 2px;
  background: var(--violet);
}
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card {
  background: var(--ink-1); border-radius: var(--radius-lg);
  overflow: hidden; transition: all 0.25s ease;
  box-shadow: var(--shadow-card); border: 1px solid var(--line-0);
}
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--line-1); }
.related-card .thumb {
  width: 100%; height: 160px; object-fit: cover; background: var(--ink-2);
}
.related-card .card-body { padding: 16px 18px; }
.related-card .card-title {
  font-size: 0.9375rem; font-weight: 600; color: var(--text-0);
  line-height: 1.5; margin-bottom: 8px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color 0.2s;
}
.related-card:hover .card-title { color: var(--violet); }
.related-card .card-date { font-size: 0.8rem; color: var(--text-2); display: flex; align-items: center; gap: 6px; }

/* 返回 & 分享 */
.article-footer-actions {
  max-width: 720px; margin: 56px auto 0; text-align: center;
}
.back-link {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 28px; border: 1px solid var(--line-1); border-radius: 8px;
  font-size: 0.9375rem; color: var(--text-1); background: transparent;
  cursor: pointer; transition: all 0.25s ease;
}
.back-link:hover { border-color: var(--teal); color: var(--teal); background: rgba(45,212,191,0.08); }
.back-link:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }
.share-bar {
  margin-top: 24px; display: flex; align-items: center; justify-content: center; gap: 12px;
}
.share-bar .share-label { font-size: 0.8125rem; color: var(--text-2); }
.share-btn {
  width: 40px; height: 40px; border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--ink-1); color: var(--text-1); font-size: 1rem;
  transition: all 0.2s ease; cursor: pointer;
}
.share-btn:hover { background: var(--ink-2); transform: translateY(-2px); }
.share-btn .fa-weixin:hover { color: #07C160; }
.share-btn .fa-weibo:hover { color: #E6162D; }
.share-btn.copy:hover { color: var(--teal); }
.share-btn:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }
.toast {
  position: fixed; left: 50%; bottom: 48px; transform: translateX(-50%) translateY(20px);
  background: var(--ink-1); border: 1px solid var(--line-1); border-radius: 8px;
  padding: 12px 24px; font-size: 0.875rem; color: var(--text-0);
  box-shadow: var(--shadow-hover); opacity: 0; pointer-events: none;
  transition: all 0.3s ease; z-index: 999;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* 内容未找到 */
.not-found {
  max-width: 720px; margin: 80px auto; text-align: center;
  background: var(--ink-1); border: 1px dashed var(--line-1);
  border-radius: var(--radius-lg); padding: 60px 40px;
}
.not-found .nf-icon { font-size: 3rem; color: var(--text-2); margin-bottom: 20px; }
.not-found p { font-size: 1.125rem; color: var(--text-1); margin-bottom: 28px; }

/* 文章横幅 */
.article-banner {
  max-width: 1224px; margin: 32px 24px 0; padding: 0; position: relative;
  border-radius: var(--radius-lg); overflow: hidden; height: 220px;
  background: linear-gradient(rgba(11,11,16,0.6), rgba(11,11,16,0.85));
}
.article-banner img { width: 100%; height: 100%; object-fit: cover; opacity: 0.5; }
.article-banner .banner-text {
  position: absolute; left: 40px; top: 50%; transform: translateY(-50%);
  max-width: 60%;
}
.article-banner .banner-text .banner-tag {
  display: inline-block; padding: 3px 12px; border-radius: 999px;
  background: rgba(244,63,94,0.2); color: var(--rose);
  font-size: 0.75rem; font-weight: 600; margin-bottom: 10px;
}
.article-banner .banner-text h2 { font-size: 1.5rem; font-weight: 750; color: var(--text-0); line-height: 1.4; }

/* 站内横幅（用 backpic 背景） */
.article-banner-bg {
  max-width: 1224px; margin: 32px auto 0; padding: 0 24px;
}
.article-banner-bg .banner-inner {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover; background-position: center;
  padding: 56px 48px; min-height: 200px;
}
.article-banner-bg .banner-inner::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(11,11,16,0.88) 0%, rgba(11,11,16,0.4) 100%);
}
.article-banner-bg .banner-content { position: relative; z-index: 2; max-width: 560px; }
.article-banner-bg .banner-content .small { font-size: 0.8125rem; color: var(--teal); margin-bottom: 8px; letter-spacing: 0.02em; }
.article-banner-bg .banner-content h2 { font-size: 1.5rem; font-weight: 750; color: var(--text-0); margin-bottom: 8px; }
.article-banner-bg .banner-content p { font-size: 0.9375rem; color: var(--text-1); margin-bottom: 20px; max-width: 440px; }

/* 页脚 */
.site-footer {
  background: #07070B; border-top: 1px solid var(--line-0);
  margin-top: 80px; padding: 64px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
  gap: 40px; padding-bottom: 48px;
}
.site-footer .brand { margin-bottom: 16px; }
.footer-brand p { font-size: 0.875rem; color: var(--text-2); line-height: 1.7; max-width: 300px; }
.social-list { display: flex; gap: 8px; }
.social-list a {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--ink-1); color: var(--text-1);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.9375rem; transition: all 0.2s ease;
}
.social-list a:hover { background: var(--ink-2); color: var(--violet); transform: translateY(-2px); }
.social-list a:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }
.footer-col h4 { font-size: 0.9375rem; font-weight: 600; color: var(--text-0); margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { font-size: 0.875rem; color: var(--text-1); transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--teal); }
.footer-col ul li a:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }
.footer-subscribe { display: flex; gap: 8px; margin-bottom: 12px; }
.footer-subscribe input {
  flex: 1; height: 40px; padding: 0 14px;
  background: var(--ink-2); color: var(--text-0);
  border: 1px solid var(--line-0); border-radius: 8px;
  font-size: 0.875rem; transition: all 0.2s ease; min-width: 0;
}
.footer-subscribe input::placeholder { color: var(--text-2); }
.footer-subscribe input:focus {
  border-color: var(--violet);
  box-shadow: 0 0 0 3px rgba(139,92,246,0.2);
}
.footer-subscribe .btn { height: 40px; padding: 0 20px; font-size: 0.875rem; }
.consent {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.8125rem; color: var(--text-2); cursor: pointer;
}
.consent input { width: 16px; height: 16px; accent-color: var(--teal); cursor: pointer; }
.footer-bottom {
  border-top: 1px solid var(--line-0);
  padding: 24px 0; display: flex; align-items: center; justify-content: space-between;
  font-size: 0.8125rem; color: var(--text-2); flex-wrap: wrap; gap: 12px;
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: var(--text-2); transition: color 0.2s; }
.footer-bottom-links a:hover { color: var(--text-0); }
.footer-bottom-links a:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

/* 响应式 */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .header-inner { gap: 16px; }
  .main-nav {
    position: fixed; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--ink-0); border-bottom: 1px solid var(--line-0);
    padding: 16px 24px; transform: translateY(-120%); opacity: 0;
    transition: all 0.3s ease; z-index: 99; align-items: stretch;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; }
  .main-nav .nav-link { font-size: 1.25rem; padding: 14px 0; border-bottom: 1px solid var(--line-0); }
  .main-nav .nav-link::after { display: none; }
  .main-nav .nav-link.active { color: var(--violet); }
  .header-cta { display: none; }
  .nav-toggle { display: flex; }
  .article-header { padding: 32px 16px 24px; }
  .article-body { padding: 32px 16px 0; }
  .article-content p { font-size: 1rem; }
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .related-card .thumb { height: 140px; }
  .article-banner-bg .banner-inner { padding: 40px 24px; min-height: 180px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 520px) {
  .breadcrumb { padding: 20px 16px 0; }
  .article-header h1 { font-size: 1.5rem; }
  .article-meta { gap: 6px 12px; font-size: 0.8125rem; }
  .article-meta .meta-item i { display: none; }
  .related-grid { grid-template-columns: 1fr; }
  .social-list a { width: 40px; height: 40px; }
  .share-bar { flex-wrap: wrap; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* roulang page: category1 */
:root {
  --ink-0: #0B0B10;
  --ink-1: #16161E;
  --ink-2: #1E1E28;
  --line-0: rgba(255, 255, 255, 0.08);
  --line-1: rgba(255, 255, 255, 0.16);
  --violet: #8B5CF6;
  --rose: #F43F5E;
  --teal: #2DD4BF;
  --text-0: #EDEDF0;
  --text-1: #9CA0B0;
  --text-2: #6B7080;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.24);
  --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.36);
  --container-w: 1224px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  background: var(--ink-0);
  color: var(--text-0);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input { font-family: inherit; }
ul { list-style: none; }
.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 0 28px; border-radius: 8px;
  font-size: 1rem; font-weight: 600; border: 1px solid transparent;
  transition: all 0.2s ease; cursor: pointer;
}
.btn-primary { background: var(--violet); color: #fff; }
.btn-primary:hover { background: #9a6ff8; filter: brightness(1.05); }
.btn-primary:active { transform: translateY(1px); }
.btn-sm { height: 36px; padding: 0 20px; font-size: 0.875rem; }
.btn-outline { background: transparent; border-color: var(--line-1); color: var(--text-0); }
.btn-outline:hover { border-color: var(--teal); color: var(--teal); background: rgba(45, 212, 191, 0.08); }
.btn:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: 72px;
  background: rgba(11, 11, 16, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-0);
}
.header-inner { height: 72px; display: flex; align-items: center; gap: 32px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--ink-1); display: flex; align-items: flex-end;
  justify-content: center; gap: 4px; padding-bottom: 7px;
}
.logo-mark .bar { width: 6px; border-radius: 3px; }
.logo-mark .bar-1 { height: 14px; background: var(--violet); }
.logo-mark .bar-2 { height: 24px; background: var(--teal); }
.logo-mark .bar-3 { height: 18px; background: var(--rose); }
.brand-name { font-size: 1.25rem; font-weight: 800; letter-spacing: 0.02em; }
.vii-text { color: var(--violet); }
.main-nav { display: flex; align-items: center; gap: 32px; margin-left: auto; }
.nav-link {
  font-size: 0.9375rem; font-weight: 500; color: var(--text-1);
  padding: 6px 2px; position: relative; transition: color 0.2s;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -4px;
  height: 2px; border-radius: 2px; background: var(--violet);
  transform: scaleX(0); transform-origin: left; transition: transform 0.2s;
}
.nav-link:hover { color: var(--text-0); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--violet); }
.nav-link.active::after { transform: scaleX(1); }
.nav-toggle {
  display: none; width: 40px; height: 40px;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; border-radius: 8px; margin-left: auto;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--text-0); border-radius: 2px; transition: all 0.3s; }
.nav-toggle:focus-visible, .mobile-menu-close:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }

/* Mobile Menu */
.mobile-menu {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: var(--ink-0); padding: 24px; flex-direction: column;
}
.mobile-menu.open { display: flex; }
.mobile-menu-header { display: flex; justify-content: flex-end; }
.mobile-menu-close {
  width: 36px; height: 36px; border-radius: 8px; display: flex;
  align-items: center; justify-content: center; font-size: 1.25rem;
  color: var(--text-0); transition: transform 0.25s;
}
.mobile-menu-close:hover { transform: rotate(90deg); background: var(--ink-2); }
.mobile-menu-nav { display: flex; flex-direction: column; gap: 8px; margin-top: 40px; }
.mobile-menu-nav a {
  font-size: 1.25rem; color: var(--text-0); padding: 12px 0;
  border-bottom: 1px solid var(--line-0); transition: color 0.2s;
}
.mobile-menu-nav a.active { color: var(--violet); }
.mobile-menu-nav .btn { margin-top: 24px; width: 100%; border-bottom: none; }

/* ===== Page Hero ===== */
.page-hero { background: var(--ink-1); border-bottom: 1px solid var(--line-0); }
.page-hero-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 48px; min-height: 200px; padding: 40px 0;
}
.page-hero h1 {
  font-size: clamp(1.8rem, 3vw, 2.2rem); font-weight: 800; line-height: 1.2;
  position: relative; padding-left: 20px;
}
.page-hero h1::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 2px; height: 28px; background: var(--rose); border-radius: 2px;
}
.page-hero p { max-width: 580px; color: var(--text-1); font-size: 1rem; line-height: 1.8; }
.page-hero-inner > * { animation: fadeUp 0.5s ease both; }
.page-hero-inner > *:nth-child(1) { animation-delay: 0.05s; }
.page-hero-inner > *:nth-child(2) { animation-delay: 0.12s; }

/* ===== Features ===== */
.features { padding: 96px 0; }
.section-head { margin-bottom: 48px; }
.section-head h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 750; line-height: 1.3; }
.section-head p { color: var(--text-1); margin-top: 8px; font-size: 0.9375rem; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: var(--ink-1); border: 1px solid var(--line-0);
  border-radius: var(--radius-lg); padding: 32px 24px;
  transition: all 0.3s; box-shadow: var(--shadow-card);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--line-1); }
.feature-icon {
  width: 48px; height: 48px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 1.25rem;
}
.feature-card:nth-child(1) .feature-icon { background: rgba(139, 92, 246, 0.15); color: var(--violet); }
.feature-card:nth-child(2) .feature-icon { background: rgba(244, 63, 94, 0.15); color: var(--rose); }
.feature-card:nth-child(3) .feature-icon { background: rgba(45, 212, 191, 0.15); color: var(--teal); }
.feature-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.feature-card p { color: var(--text-1); font-size: 0.9375rem; line-height: 1.7; }

/* ===== Preview List ===== */
.preview-section {
  padding: 96px 0; background: var(--ink-1);
  border-top: 1px solid var(--line-0); border-bottom: 1px solid var(--line-0);
}
.section-head-row {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 32px;
}
.section-head-row h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 750; }
.more-link { color: var(--text-1); font-size: 0.9375rem; font-weight: 500; transition: all 0.2s; display: inline-flex; align-items: center; gap: 6px; }
.more-link:hover { color: var(--violet); }
.preview-list { display: flex; flex-direction: column; }
.preview-item {
  display: flex; align-items: center; gap: 24px;
  padding: 20px 12px; border-bottom: 1px solid var(--line-0);
  border-radius: var(--radius-md); transition: background 0.25s, transform 0.25s;
}
.preview-item:last-child { border-bottom: none; }
.preview-item:hover { background: var(--ink-0); transform: translateX(4px); }
.preview-thumb {
  width: 96px; height: 64px; border-radius: 8px; overflow: hidden;
  flex-shrink: 0; background: var(--ink-2); position: relative;
}
.preview-thumb img { width: 100%; height: 100%; object-fit: cover; }
.preview-thumb::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(11, 11, 16, 0.35), transparent 60%);
  pointer-events: none;
}
.preview-info { flex: 1; min-width: 0; }
.preview-info h3 {
  font-size: 1.0625rem; font-weight: 600; line-height: 1.5;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.preview-info h3 a { transition: color 0.2s; }
.preview-info h3 a:hover { color: var(--violet); }
.preview-desc {
  color: var(--text-1); font-size: 0.9375rem; line-height: 1.6;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-top: 4px;
}
.preview-meta {
  display: flex; gap: 16px; color: var(--text-2);
  font-size: 0.8125rem; margin-top: 6px; align-items: center;
}
.preview-meta .tag { color: var(--rose); font-weight: 600; }

/* Pagination */
.pagination {
  display: flex; justify-content: center; align-items: center;
  gap: 8px; margin-top: 48px;
}
.page-link {
  width: 32px; height: 32px; display: flex; align-items: center;
  justify-content: center; border-radius: 8px;
  font-family: "DIN Alternate", "Bahnschrift", "Arial Narrow", sans-serif;
  font-size: 0.875rem; font-variant-numeric: tabular-nums;
  color: var(--text-1); transition: all 0.2s; background: transparent;
}
.page-link:hover { background: var(--ink-2); color: var(--text-0); }
.page-link.current { background: var(--violet); color: #fff; }
.page-link:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }
.page-arrow { font-size: 0.75rem; }

/* ===== Steps ===== */
.steps-section { padding: 96px 0; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.step-item {
  background: var(--ink-1); border: 1px solid var(--line-0);
  border-radius: var(--radius-lg); padding: 32px 24px;
  position: relative; overflow: hidden; box-shadow: var(--shadow-card);
  transition: all 0.3s;
}
.step-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.step-item::before {
  counter-increment: step; content: "0" counter(step);
  position: absolute; top: 18px; right: 20px;
  font-family: "DIN Alternate", "Bahnschrift", "Arial Narrow", sans-serif;
  font-size: 2.5rem; font-weight: 800; color: transparent;
  -webkit-text-stroke: 1px var(--line-1); opacity: 0.5;
}
.step-item h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.step-item p { color: var(--text-1); font-size: 0.9375rem; line-height: 1.7; }
.step-item:nth-child(1) h3 { color: var(--violet); }
.step-item:nth-child(2) h3 { color: var(--rose); }
.step-item:nth-child(3) h3 { color: var(--teal); }

/* ===== FAQ ===== */
.faq-section { padding: 96px 0; background: var(--ink-1); border-top: 1px solid var(--line-0); }
.faq-layout { display: grid; grid-template-columns: 300px 1fr; gap: 64px; }
.faq-title-block h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 750; line-height: 1.3; }
.faq-title-block p { color: var(--text-1); margin-top: 12px; font-size: 0.9375rem; }
.faq-list { display: flex; flex-direction: column; }
.faq-item { border-bottom: 1px solid var(--line-0); padding: 4px 0; }
.faq-item:first-child { border-top: 1px solid var(--line-0); }
.faq-question {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  padding: 18px 0; font-size: 1rem; font-weight: 600;
  color: var(--text-0); text-align: left; gap: 16px;
}
.faq-question:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; border-radius: 4px; }
.faq-icon {
  position: relative; width: 14px; height: 14px; flex-shrink: 0;
  transition: transform 0.2s ease;
}
.faq-icon::before, .faq-icon::after {
  content: ""; position: absolute; background: var(--text-1);
  border-radius: 1px; transition: background 0.2s;
}
.faq-icon::before { width: 14px; height: 2px; top: 6px; left: 0; }
.faq-icon::after { width: 2px; height: 14px; top: 0; left: 6px; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-item.open .faq-icon::before, .faq-item.open .faq-icon::after { background: var(--teal); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.25s ease; }
.faq-answer p { padding-bottom: 18px; color: var(--text-1); font-size: 0.9375rem; line-height: 1.7; }

/* ===== CTA / Cross ===== */
.cta-section { padding: 96px 0; }
.cta-card {
  position: relative; background: var(--ink-1);
  border-radius: var(--radius-lg); padding: 48px;
  border: 1px solid var(--line-0); overflow: hidden;
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
}
.cta-card::before {
  content: "VII"; position: absolute; right: -10px; top: -20px;
  font-family: "DIN Alternate", Georgia, serif; font-style: italic;
  font-size: 160px; color: #fff; opacity: 0.04; line-height: 1; pointer-events: none;
}
.cta-card::after {
  content: ""; position: absolute; left: 0; top: 0; width: 2px; height: 60px;
  background: var(--teal); border-radius: 0 0 2px 2px;
}
.cta-card h3 { font-size: 1.5rem; font-weight: 750; position: relative; z-index: 1; }
.cta-card p { color: var(--text-1); margin-top: 8px; font-size: 0.9375rem; position: relative; z-index: 1; }
.cta-actions { display: flex; gap: 16px; flex-shrink: 0; position: relative; z-index: 1; }

/* ===== Footer ===== */
.site-footer { background: #07070B; border-top: 1px solid var(--line-0); padding: 64px 0 0; }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
  gap: 48px; padding-bottom: 48px;
}
.footer-brand p { color: var(--text-1); margin-top: 16px; font-size: 0.9375rem; line-height: 1.7; max-width: 280px; }
.social-list { display: flex; gap: 12px; }
.social-list a {
  width: 36px; height: 36px; border-radius: 8px; background: var(--ink-1);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-1); transition: all 0.2s;
}
.social-list a:hover { transform: translateY(-3px); color: var(--teal); }
.footer-col h4 { font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: var(--text-1); font-size: 0.9375rem; transition: all 0.2s; }
.footer-col ul a:hover { color: var(--violet); padding-left: 4px; }
.footer-subscribe { display: flex; gap: 8px; }
.footer-subscribe input {
  flex: 1; height: 48px; background: var(--ink-2);
  border: 1px solid var(--line-0); border-radius: 8px;
  padding: 0 16px; color: var(--text-0); font-size: 0.9375rem;
  min-width: 0; transition: border-color 0.2s, box-shadow 0.2s;
}
.footer-subscribe input:focus {
  outline: none; border-color: var(--violet);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}
.footer-subscribe input::placeholder { color: var(--text-2); }
.consent { display: flex; align-items: center; gap: 8px; color: var(--text-2); font-size: 0.8125rem; margin-top: 12px; }
.consent input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--teal); }
.footer-bottom {
  border-top: 1px solid var(--line-0); padding: 20px 0;
  display: flex; justify-content: space-between; align-items: center;
  color: var(--text-2); font-size: 0.8125rem;
}
.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: var(--text-2); transition: color 0.2s; }
.footer-bottom-links a:hover { color: var(--text-0); }

/* ===== Animations ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .faq-layout { grid-template-columns: 240px 1fr; gap: 40px; }
  .cta-card { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .main-nav, .header-cta { display: none; }
  .nav-toggle { display: flex; }
  .page-hero-inner { flex-direction: column; align-items: flex-start; gap: 20px; min-height: auto; padding: 48px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .faq-layout { grid-template-columns: 1fr; gap: 24px; }
  .preview-item { gap: 16px; padding: 16px 8px; }
  .preview-thumb { width: 72px; height: 56px; }
  .preview-desc { display: none; }
  .cta-card { padding: 32px 24px; }
  .cta-actions { flex-direction: column; width: 100%; }
  .cta-actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 12px; }
  .section-head-row { flex-direction: row; align-items: center; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: 1fr; }
  .pagination { flex-wrap: wrap; }
  .page-hero p { font-size: 0.9375rem; }
}

/* roulang page: category2 */
:root {
  --ink-0: #0B0B10;
  --ink-1: #16161E;
  --ink-2: #1E1E28;
  --line-0: rgba(255,255,255,0.08);
  --line-1: rgba(255,255,255,0.16);
  --violet: #8B5CF6;
  --rose: #F43F5E;
  --teal: #2DD4BF;
  --text-0: #EDEDF0;
  --text-1: #9CA0B0;
  --text-2: #6B7080;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.24);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.36);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Arial Narrow", sans-serif;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--ink-0);
  color: var(--text-0);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
button { font-family: inherit; }
.container { max-width: 1224px; margin: 0 auto; padding: 0 24px; }
section { padding: 96px 0; position: relative; }

/* ===== Header ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: 72px;
  background: rgba(11,11,16,0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-0);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
.logo-mark {
  display: flex; align-items: flex-end; justify-content: center; gap: 3px;
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--ink-2); padding: 6px 7px;
}
.logo-mark .bar { width: 8px; border-radius: 2px; }
.logo-mark .bar-1 { height: 22px; background: var(--violet); }
.logo-mark .bar-2 { height: 14px; background: var(--rose); }
.logo-mark .bar-3 { height: 22px; background: var(--teal); }
.brand-name { font-size: 1.25rem; font-weight: 800; letter-spacing: -0.01em; color: var(--text-0); }
.vii-text { color: var(--violet); }
.main-nav { display: flex; gap: 32px; align-items: center; }
.nav-link {
  font-size: 0.9375rem; font-weight: 500; color: var(--text-1);
  text-decoration: none; position: relative; padding: 10px 0; white-space: nowrap;
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 2px; border-radius: 2px;
  background: var(--violet);
  transform: scaleX(0); transition: transform 0.22s ease;
}
.nav-link:hover { color: var(--text-0); background: rgba(255,255,255,0.03); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: var(--violet); }
.nav-link.active::after { transform: scaleX(1); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 48px; padding: 0 28px; border-radius: 8px;
  font-size: 1rem; font-weight: 600; text-decoration: none; cursor: pointer;
  border: none; transition: all 0.2s ease; white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; }
.btn-sm { height: 36px; padding: 0 20px; font-size: 0.875rem; }
.btn-primary { background: var(--violet); color: #fff; }
.btn-primary:hover { background: #9d6ff7; filter: brightness(1.05); }
.btn-primary:active { transform: translateY(1px); }
.btn-outline {
  background: transparent; color: var(--text-0);
  border: 1px solid var(--line-1); font-weight: 500;
}
.btn-outline:hover { border-color: var(--teal); color: var(--teal); background: rgba(45,212,191,0.08); }
.btn-outline:active { transform: translateY(1px); }
.header-cta { margin-left: 8px; }
.nav-toggle {
  display: none; width: 40px; height: 40px; border-radius: 8px;
  background: transparent; border: 1px solid var(--line-0);
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  cursor: pointer; transition: all 0.2s ease;
}
.nav-toggle:hover { background: var(--ink-2); }
.nav-toggle span { width: 18px; height: 2px; background: var(--text-0); border-radius: 2px; transition: all 0.3s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.55);
  opacity: 0; visibility: hidden; transition: all 0.3s ease; z-index: 99;
}
.nav-overlay.show { opacity: 1; visibility: visible; }

/* ===== 分类 Hero ===== */
.category-hero {
  background: var(--ink-1);
  border-bottom: 1px solid var(--line-0);
  padding: 64px 0;
  min-height: 200px;
  display: flex; align-items: center;
}
.category-hero-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 64px;
}
.category-title { flex: 0 0 auto; }
.category-title .kicker-line {
  width: 32px; height: 2px; background: var(--rose); border-radius: 2px; margin-bottom: 18px;
}
.category-title h1 {
  font-size: clamp(1.8rem, 3vw, 2.2rem);
  font-weight: 800; line-height: 1.2; letter-spacing: -0.01em;
  color: var(--text-0);
}
.category-desc { flex: 0 1 440px; }
.category-desc p {
  font-size: 1rem; line-height: 1.8; color: var(--text-1);
}

/* ===== 数据带 ===== */
.stats-strip { padding: 48px 0 0; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: var(--ink-1);
  border: 1px solid var(--line-0);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.stat-item {
  padding: 32px 24px; text-align: center;
  border-right: 1px solid var(--line-0);
}
.stat-item:last-child { border-right: none; }
.stat-num {
  display: block;
  font-family: var(--font-num);
  font-size: 2rem; font-weight: 700;
  color: var(--violet); font-variant-numeric: tabular-nums;
  margin-bottom: 4px;
}
.stat-item:nth-child(2) .stat-num { color: var(--rose); }
.stat-item:nth-child(3) .stat-num { color: var(--teal); }
.stat-label { font-size: 0.875rem; color: var(--text-1); }

/* ===== 区块标题 ===== */
.section-head { margin-bottom: 48px; }
.section-head h2 {
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  font-weight: 750; line-height: 1.3; letter-spacing: -0.005em;
  color: var(--text-0); margin-bottom: 8px;
}
.section-head .section-sub { font-size: 0.9375rem; color: var(--text-1); }
.section-head.align-center { text-align: center; }

/* ===== 回放列表区 ===== */
.replay-list-section { padding-top: 64px; }
.replay-list {
  border-top: 1px solid var(--line-0);
}
.replay-item {
  border-bottom: 1px solid var(--line-0);
  transition: background 0.25s ease, transform 0.25s ease;
}
.replay-item:hover { background: var(--ink-1); }
.replay-item a {
  display: flex; align-items: center; gap: 20px;
  padding: 24px 16px; text-decoration: none;
}
.replay-thumb {
  width: 96px; height: 64px; border-radius: 8px; overflow: hidden; flex-shrink: 0;
  background: var(--ink-2);
}
.replay-thumb img { width: 100%; height: 100%; object-fit: cover; }
.replay-info { flex: 1; min-width: 0; }
.replay-info h3 {
  font-size: 1.0625rem; font-weight: 600; line-height: 1.45;
  color: var(--text-0); margin-bottom: 6px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: color 0.2s ease;
}
.replay-item:hover .replay-info h3 { color: var(--violet); }
.replay-info p {
  font-size: 0.875rem; color: var(--text-1); line-height: 1.5;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  margin-bottom: 8px;
}
.replay-meta {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.8rem; color: var(--text-2);
}
.replay-meta .tag {
  display: inline-block; padding: 2px 10px; border-radius: 999px;
  background: var(--ink-2); color: var(--rose);
  font-size: 0.75rem; font-weight: 600; line-height: 1.6;
}
.empty-state {
  border: 1px dashed var(--line-1); border-radius: var(--radius-lg);
  padding: 64px 32px; text-align: center; color: var(--text-1);
}
.empty-state i { font-size: 2rem; color: var(--text-2); margin-bottom: 16px; }

/* ===== 分页器 ===== */
.pagination {
  display: flex; justify-content: center; gap: 8px; margin-top: 40px;
}
.page-link {
  width: 32px; height: 32px; border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-num); font-size: 0.875rem;
  color: var(--text-1); text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}
.page-link:hover { background: var(--ink-2); color: var(--text-0); }
.page-link.current { background: var(--violet); color: #fff; font-weight: 600; }
.page-arrow { background: transparent; border: none; cursor: pointer; color: var(--text-1); font-size: 0.875rem; }
.page-arrow:hover { color: var(--text-0); }

/* ===== 体验区 ===== */
.feature-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.feature-card {
  background: var(--ink-1); border: 1px solid var(--line-0);
  border-radius: var(--radius-lg); padding: 36px 28px;
  transition: all 0.3s ease; position: relative; overflow: hidden;
}
.feature-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--violet);
  transform: scaleX(0); transition: transform 0.3s ease;
}
.feature-card:nth-child(2)::before { background: var(--rose); }
.feature-card:nth-child(3)::before { background: var(--teal); }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.feature-icon svg { width: 22px; height: 22px; }
.feature-icon.violet { background: rgba(139,92,246,0.12); color: var(--violet); }
.feature-icon.rose { background: rgba(244,63,94,0.12); color: var(--rose); }
.feature-icon.teal { background: rgba(45,212,191,0.12); color: var(--teal); }
.feature-card h3 { font-size: 1.15rem; font-weight: 700; color: var(--text-0); margin-bottom: 10px; }
.feature-card p { font-size: 0.9375rem; color: var(--text-1); line-height: 1.7; }

/* ===== 精选回放 ===== */
.showcase-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.showcase-card {
  background: var(--ink-1); border: 1px solid var(--line-0);
  border-radius: var(--radius-lg); overflow: hidden;
  text-decoration: none; transition: all 0.3s ease;
}
.showcase-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.showcase-cover {
  position: relative; aspect-ratio: 16 / 9; overflow: hidden;
  background: var(--ink-2);
}
.showcase-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.showcase-card:hover .showcase-cover img { transform: scale(1.03); }
.showcase-cover::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 60px;
  background: linear-gradient(to top, rgba(11,11,16,0.55), transparent);
}
.play-badge {
  position: absolute; right: 16px; bottom: 16px; z-index: 2;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.26); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 0.875rem;
  transition: all 0.2s ease;
}
.showcase-card:hover .play-badge { background: rgba(139,92,246,0.8); }
.showcase-info { padding: 20px; }
.showcase-info h3 {
  font-size: 1.0625rem; font-weight: 600; color: var(--text-0);
  margin-bottom: 6px; line-height: 1.4;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.showcase-info p { font-size: 0.8125rem; color: var(--text-2); }

/* ===== 流程区 ===== */
.process-section {
  background: var(--ink-1);
  border-top: 1px solid var(--line-0);
  border-bottom: 1px solid var(--line-0);
}
.process-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.process-card {
  background: var(--ink-0); border: 1px solid var(--line-0);
  border-radius: var(--radius-lg); padding: 40px 28px;
  text-align: center; position: relative; overflow: hidden;
  transition: all 0.3s ease;
}
.process-card:hover { transform: translateY(-4px); border-color: var(--line-1); box-shadow: var(--shadow-card); }
.process-num {
  display: flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; border-radius: 14px;
  background: rgba(139,92,246,0.1);
  color: var(--violet);
  font-family: var(--font-num); font-size: 1.375rem; font-weight: 700;
  margin: 0 auto 20px;
}
.process-card:nth-child(2) .process-num { background: rgba(244,63,94,0.1); color: var(--rose); }
.process-card:nth-child(3) .process-num { background: rgba(45,212,191,0.1); color: var(--teal); }
.process-card h3 { font-size: 1.125rem; font-weight: 700; color: var(--text-0); margin-bottom: 10px; }
.process-card p { font-size: 0.9375rem; color: var(--text-1); line-height: 1.7; }

/* ===== FAQ ===== */
.faq-layout {
  display: grid; grid-template-columns: 1fr 1.6fr; gap: 64px;
}
.faq-title h2 { margin-bottom: 12px; }
.faq-title p { color: var(--text-1); font-size: 0.9375rem; }
.faq-list { border-top: 1px solid var(--line-0); }
.faq-item { border-bottom: 1px solid var(--line-0); }
.faq-q {
  width: 100%; background: none; border: none;
  padding: 22px 0; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  font-size: 1rem; font-weight: 600; color: var(--text-0);
  text-align: left; transition: color 0.2s ease;
}
.faq-q:hover { color: var(--violet); }
.faq-q:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; border-radius: 4px; }
.faq-q i {
  flex-shrink: 0; font-size: 0.875rem; color: var(--text-2);
  transition: transform 0.25s ease, color 0.25s ease;
}
.faq-item.open .faq-q i { transform: rotate(45deg); color: var(--violet); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-a-inner { padding-bottom: 20px; }
.faq-a p { color: var(--text-1); font-size: 0.9375rem; line-height: 1.7; }

/* ===== CTA ===== */
.cta-section { padding-top: 0; }
.cta-card {
  background: var(--ink-1);
  border: 1px solid var(--line-0);
  border-radius: 20px;
  padding: 64px 48px;
  text-align: center;
  position: relative; overflow: hidden;
}
.cta-card::before {
  content: "VII";
  position: absolute; right: -10px; bottom: -50px;
  font-family: var(--font-num);
  font-size: 200px; font-weight: 700; line-height: 1;
  color: rgba(139,92,246,0.06);
  pointer-events: none;
}
.cta-card h2 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  font-weight: 750; color: var(--text-0); margin-bottom: 12px;
  position: relative; z-index: 1;
}
.cta-card p { color: var(--text-1); font-size: 1rem; margin-bottom: 32px; position: relative; z-index: 1; }
.cta-card .btn { position: relative; z-index: 1; }

/* ===== 交叉引导 ===== */
.cross-nav-section { padding-top: 0; }
.cross-nav-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.cross-card {
  background: var(--ink-1); border: 1px solid var(--line-0);
  border-radius: var(--radius-lg); padding: 28px 32px;
  display: flex; align-items: center; justify-content: space-between;
  text-decoration: none; transition: all 0.25s ease; gap: 20px;
}
.cross-card:hover { transform: translateY(-2px); border-color: var(--line-1); box-shadow: var(--shadow-card); }
.cross-card h3 { font-size: 1.125rem; font-weight: 700; color: var(--text-0); margin-bottom: 4px; }
.cross-card p { font-size: 0.875rem; color: var(--text-1); }
.cross-card .arrow { font-size: 1.25rem; color: var(--violet); flex-shrink: 0; transition: transform 0.25s ease; }
.cross-card:hover .arrow { transform: translateX(4px); }
.cross-card.current { opacity: 0.7; cursor: default; }
.cross-card.current:hover { transform: none; box-shadow: none; }

/* ===== Footer ===== */
.site-footer {
  background: #07070B;
  border-top: 1px solid var(--line-0);
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand p { color: var(--text-1); font-size: 0.9375rem; margin-top: 16px; line-height: 1.7; }
.social-list { display: flex; gap: 12px; }
.social-list a {
  width: 40px; height: 40px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  background: var(--ink-2); color: var(--text-1);
  font-size: 1rem; text-decoration: none;
  transition: all 0.2s ease;
}
.social-list a:hover { transform: translateY(-2px); color: var(--violet); }
.footer-col h4 {
  font-size: 0.9375rem; font-weight: 700; color: var(--text-0); margin-bottom: 20px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a {
  color: var(--text-1); text-decoration: none; font-size: 0.9375rem;
  transition: color 0.2s ease;
}
.footer-col ul a:hover { color: var(--text-0); }
.footer-subscribe { display: flex; gap: 8px; margin-bottom: 12px; }
.footer-subscribe input {
  flex: 1; height: 44px; padding: 0 16px;
  background: var(--ink-2); border: 1px solid var(--line-0);
  border-radius: 8px; color: var(--text-0); font-size: 0.875rem;
  transition: all 0.2s ease;
}
.footer-subscribe input::placeholder { color: var(--text-2); }
.footer-subscribe input:focus { outline: none; border-color: var(--violet); box-shadow: 0 0 0 3px rgba(139,92,246,0.2); }
.footer-subscribe .btn { height: 44px; padding: 0 18px; font-size: 0.875rem; }
.consent {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.8125rem; color: var(--text-2); cursor: pointer;
}
.consent input {
  width: 16px; height: 16px; accent-color: var(--teal); cursor: pointer;
}
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding: 24px 0;
  border-top: 1px solid var(--line-0);
  color: var(--text-2); font-size: 0.8125rem;
}
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { color: var(--text-2); text-decoration: none; transition: color 0.2s ease; }
.footer-bottom-links a:hover { color: var(--text-1); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  section { padding: 64px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item:nth-child(-n+2) { border-bottom: 1px solid var(--line-0); }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-card:last-child { grid-column: span 2; }
  .showcase-grid { grid-template-columns: 1fr 1fr; }
  .showcase-card:last-child { grid-column: span 2; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .process-card:last-child { grid-column: span 2; }
  .faq-layout { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .category-hero-inner { gap: 32px; }
}
@media (max-width: 767px) {
  section { padding: 48px 0; }
  .container { padding: 0 16px; }
  .site-header { height: 64px; }
  .header-cta { display: none; }
  .main-nav {
    position: fixed; top: 0; right: -300px; z-index: 1000;
    width: 280px; height: 100vh;
    background: var(--ink-0);
    border-left: 1px solid var(--line-0);
    flex-direction: column; align-items: flex-start;
    padding: 80px 32px 32px;
    gap: 8px;
    transition: right 0.3s ease;
  }
  .main-nav.open { right: 0; }
  .nav-link { width: 100%; padding: 10px 0; font-size: 1.25rem; }
  .nav-toggle { display: flex; }
  .category-hero { padding: 40px 0; }
  .category-hero-inner { flex-direction: column; gap: 16px; }
  .category-desc { flex: 1; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item:nth-child(-n+2) { border-bottom: 1px solid var(--line-0); }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card:last-child { grid-column: span 1; }
  .showcase-grid { grid-template-columns: 1fr; }
  .showcase-card:last-child { grid-column: span 1; }
  .process-grid { grid-template-columns: 1fr; }
  .process-card:last-child { grid-column: span 1; }
  .replay-item a { gap: 14px; padding: 16px 8px; }
  .replay-thumb { width: 72px; height: 56px; }
  .replay-info p { display: none; }
  .replay-meta { flex-wrap: wrap; gap: 8px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .cta-card { padding: 48px 24px; }
  .cross-nav-grid { grid-template-columns: 1fr; }
}

/* ===== 动效 ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-up {
  opacity: 0;
  animation: fadeUp 0.5s ease forwards;
}
.fade-up:nth-child(1) { animation-delay: 0.08s; }
.fade-up:nth-child(2) { animation-delay: 0.16s; }
.fade-up:nth-child(3) { animation-delay: 0.24s; }
.fade-up:nth-child(4) { animation-delay: 0.32s; }
.fade-up:nth-child(5) { animation-delay: 0.4s; }
.fade-up:nth-child(6) { animation-delay: 0.48s; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}