/* roulang page: index */
:root{
  --purple:#6A4CFF;
  --purple-soft:#F3F1FF;
  --cyan:#2AD8C0;
  --amber:#FFB020;
  --amber-hover:#FFC24D;
  --dark:#0B0D12;
  --dark-2:#12151D;
  --dark-line:rgba(255,255,255,.08);
  --dark-text:#E8EAF0;
  --dark-muted:#9AA2B4;
  --ink:#1C1F27;
  --muted:#5B6270;
  --line:#E6E8EF;
  --bg:#F4F5F8;
  --white:#FFFFFF;
  --ok:#17A673;
  --err:#E5484D;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:20px;
  --shadow-sm:0 1px 2px rgba(16,20,32,.04), 0 12px 28px -12px rgba(16,20,32,.14);
  --shadow-hover:0 18px 40px -16px rgba(106,76,255,.28);
  --container:1200px;
  --font-sans:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:ui-monospace,Menlo,Consolas,"Courier New",monospace;
}
*,*::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:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--purple);outline-offset:2px;border-radius:6px;}
section{scroll-margin-top:120px;}
.container{max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--purple);background:var(--purple-soft);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-head h2{font-size:32px;font-weight:600;line-height:1.3;letter-spacing:-.01em;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}
.eyebrow--dark{color:var(--cyan);background:rgba(42,216,192,.12);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .18s ease,box-shadow .22s ease;
}
.btn-amber{background:var(--amber);color:#1A1200;box-shadow:0 10px 24px -14px rgba(255,176,32,.9);}
.btn-amber:hover{background:var(--amber-hover);transform:translateY(-1px);box-shadow:0 14px 30px -12px rgba(106,76,255,.45);}
.btn-amber:active{transform:translateY(0);box-shadow:0 6px 14px -10px rgba(106,76,255,.5);}
.btn-ghost{background:transparent;border-color:rgba(106,76,255,.45);color:var(--purple);}
.btn-ghost:hover{background:rgba(106,76,255,.08);border-color:var(--purple);}
.btn-dark-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.28);color:#fff;}
.btn-dark-ghost:hover{background:rgba(255,255,255,.2);}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;pointer-events:none;}
.link-more{display:inline-flex;align-items:center;gap:8px;color:var(--purple);font-weight:600;font-size:15px;border-bottom:1px solid rgba(106,76,255,.35);padding-bottom:3px;transition:gap .2s ease,border-color .2s ease;}
.link-more:hover{gap:12px;border-color:var(--purple);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  padding:4px 10px;border-radius:999px;
  background:var(--purple-soft);color:var(--purple);
}
.badge--cyan{background:rgba(42,216,192,.14);color:#0F8C7C;}
.badge--amber{background:rgba(255,176,32,.16);color:#8A5A00;}
.badge--dark{background:rgba(255,255,255,.1);color:var(--dark-text);border:1px solid rgba(255,255,255,.14);}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:100;background:var(--dark);transition:background .25s ease,box-shadow .25s ease;}
.site-header.is-scrolled{background:rgba(11,13,18,.9);backdrop-filter:blur(8px);box-shadow:0 12px 30px -20px rgba(0,0,0,.9);}
.nav-top{height:64px;display:flex;align-items:center;border-bottom:1px solid var(--dark-line);}
.nav-top-inner{display:flex;align-items:center;gap:24px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--purple),var(--cyan));
  color:#fff;font-size:17px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{color:#fff;font-size:16px;font-weight:600;letter-spacing:.01em;white-space:nowrap;}
.nav-search{
  flex:1 1 auto;max-width:360px;margin-left:auto;
  display:flex;align-items:center;gap:10px;
  height:40px;padding:0 16px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);
  transition:border-color .2s ease,background .2s ease;
}
.nav-search:focus-within{border-color:rgba(106,76,255,.75);background:rgba(255,255,255,.12);}
.nav-search i{color:var(--dark-muted);font-size:13px;}
.nav-search input{
  flex:1;border:0;background:transparent;color:#fff;font-size:14px;outline:none;min-width:0;
}
.nav-search input::placeholder{color:var(--dark-muted);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);
  cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;background:#fff;border-radius:2px;transition:transform .25s ease,opacity .25s 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);}
.nav-channels{border-bottom:1px solid var(--dark-line);}
.nav-channels-inner{
  display:flex;align-items:center;gap:8px;height:44px;
  overflow-x:auto;scrollbar-width:none;
}
.nav-channels-inner::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;
  height:32px;padding:0 16px;border-radius:999px;
  font-size:14px;color:var(--dark-muted);white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.pill:hover{color:#fff;background:rgba(255,255,255,.08);}
.pill.is-active{background:var(--purple);color:#fff;font-weight:600;}
.mobile-drawer{display:none;background:var(--dark-2);border-bottom:1px solid var(--dark-line);padding:12px 0 18px;}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:block;padding:12px 4px;color:var(--dark-text);font-size:15px;
  border-bottom:1px solid var(--dark-line);
}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a.is-active{color:var(--cyan);font-weight:600;}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(100deg,rgba(11,13,18,.97) 0%,rgba(11,13,18,.86) 42%,rgba(11,13,18,.52) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  min-height:580px;display:flex;align-items:center;
  padding:76px 0 88px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:24px 24px;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background-image:linear-gradient(90deg,rgba(255,255,255,.4) 0 12px,transparent 12px 26px);
  background-size:26px 1px;background-repeat:repeat-x;
}
.hero-glow{
  position:absolute;right:-120px;bottom:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(106,76,255,.5),rgba(42,216,192,.18) 55%,transparent 72%);
  filter:blur(10px);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;width:100%;}
.hero-grid{display:flex;flex-wrap:wrap;align-items:center;}
.hero-copy{flex:0 0 60%;max-width:60%;padding-right:48px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px;}
.hero h1{
  font-size:50px;font-weight:700;line-height:1.18;letter-spacing:-.01em;color:#fff;
  text-shadow:0 2px 20px rgba(0,0,0,.5);
}
.hero-sub{
  margin-top:20px;font-size:18px;line-height:1.7;color:#C9CFDD;max-width:560px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:40px;margin-top:44px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.12);
}
.hero-stats li{min-width:96px;}
.hero-stats .num{
  display:block;font-family:var(--font-mono);font-size:26px;font-weight:700;color:var(--cyan);line-height:1.2;
}
.hero-stats .lab{display:block;font-size:13px;color:var(--dark-muted);margin-top:4px;}
.hero-visual{flex:0 0 40%;max-width:40%;}
.hero-card{
  background:rgba(18,21,29,.86);border:1px solid rgba(106,76,255,.35);
  border-radius:var(--radius-lg);padding:22px;
  box-shadow:0 30px 60px -30px rgba(0,0,0,.9),inset 0 0 40px rgba(106,76,255,.12);
  backdrop-filter:blur(6px);
}
.hero-card img{border-radius:var(--radius-md);width:100%;height:180px;object-fit:cover;}
.hero-card h3{margin-top:18px;font-size:17px;font-weight:600;color:#fff;}
.hero-card p{margin-top:8px;font-size:14px;color:var(--dark-muted);line-height:1.7;}
.progress{margin-top:18px;}
.progress-top{display:flex;justify-content:space-between;font-size:13px;color:var(--dark-muted);font-family:var(--font-mono);}
.progress-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.12);margin-top:8px;overflow:hidden;}
.progress-bar span{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--purple));}
.ticket-notch{position:absolute;bottom:-14px;width:28px;height:28px;border-radius:50%;background:var(--bg);z-index:3;}
.ticket-notch.left{left:-14px;}
.ticket-notch.right{right:-14px;}

/* ============ 时间线 ============ */
.timeline{position:relative;max-width:940px;}
.timeline::before{
  content:"";position:absolute;left:118px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--purple),rgba(106,76,255,.12));
}
.tl-item{display:flex;gap:0;padding-bottom:34px;position:relative;}
.tl-item:last-child{padding-bottom:0;}
.tl-time{
  flex:0 0 118px;padding-right:28px;text-align:right;
  font-family:var(--font-mono);font-size:15px;font-weight:600;color:var(--purple);padding-top:22px;
}
.tl-node{
  position:absolute;left:112px;top:28px;width:14px;height:14px;border-radius:50%;
  background:var(--cyan);border:2px solid #fff;box-shadow:0 0 0 3px rgba(42,216,192,.18);
}
.tl-body{
  flex:1;margin-left:38px;background:var(--white);border:1px solid var(--line);
  border-radius:16px;padding:20px 24px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tl-body:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(106,76,255,.35);}
.tl-body h3{font-size:20px;font-weight:600;}
.tl-body p{margin-top:8px;font-size:15px;color:var(--muted);}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:14px;}

/* ============ 登录方式对比 ============ */
.compare{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.compare-card{
  position:relative;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:28px 24px;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.compare-card.is-featured{
  transform:translateY(-12px);border-color:var(--purple);
  box-shadow:0 24px 48px -22px rgba(106,76,255,.45);
}
.compare-card.is-featured:hover{transform:translateY(-16px);}
.compare-flag{
  position:absolute;top:-13px;right:20px;background:var(--purple);color:#fff;
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;
}
.compare-card h3{font-size:21px;font-weight:600;}
.compare-card .price{
  font-family:var(--font-mono);font-size:15px;color:var(--muted);margin-top:6px;
}
.feature-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.feature-list li{display:flex;gap:10px;font-size:14.5px;color:var(--muted);line-height:1.65;}
.feature-list li i{margin-top:5px;color:var(--cyan);font-size:13px;}
.feature-list li.is-warn i{color:var(--amber);}
.compare-card .btn{margin-top:24px;}

/* ============ 亮点网格 ============ */
.highlight-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.hl-card{
  background:var(--white);border:1px solid var(--line);border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.hl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(106,76,255,.4);}
.hl-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;}
.hl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease-out;}
.hl-card:hover .hl-thumb img{transform:scale(1.05);}
.hl-thumb .badge{position:absolute;left:12px;top:12px;}
.hl-body{padding:18px 20px 22px;}
.hl-body h3{font-size:17px;font-weight:600;line-height:1.45;}
.hl-body p{margin-top:8px;font-size:14px;color:var(--muted);}

/* ============ 最新信息 ============ */
.news-section{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--white);border:1px solid var(--line);border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(106,76,255,.35);}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--purple-soft);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-thumb .badge{position:absolute;left:12px;top:12px;}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-body h3{font-size:18px;font-weight:600;line-height:1.5;}
.news-card:hover .news-body h3 a{color:var(--purple);}
.news-excerpt{
  margin-top:10px;font-size:14px;color:var(--muted);line-height:1.7;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12.5px;color:var(--muted);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  background:var(--white);border:1px dashed var(--line);border-radius:var(--radius-lg);
}
.empty-state i{font-size:26px;color:var(--purple);}
.empty-state p{margin-top:14px;color:var(--muted);font-size:15px;}
.empty-state .btn{margin-top:20px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-md);
  margin-bottom:12px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item[open]{border-color:rgba(106,76,255,.45);box-shadow:var(--shadow-sm);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary i{color:var(--purple);font-size:14px;transition:transform .25s ease;flex:0 0 auto;}
.faq-item[open] summary i{transform:rotate(180deg);}
.faq-answer{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted);}

/* ============ 反馈表单 ============ */
.feedback-section{background:var(--dark);color:var(--dark-text);position:relative;overflow:hidden;}
.feedback-section::before{
  content:"";position:absolute;left:-160px;top:-160px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(106,76,255,.34),transparent 70%);pointer-events:none;
}
.feedback-inner{position:relative;z-index:2;display:grid;grid-template-columns:0.85fr 1.15fr;gap:56px;align-items:start;}
.feedback-copy h2{font-size:32px;font-weight:600;color:#fff;line-height:1.3;}
.feedback-copy p{margin-top:16px;color:var(--dark-muted);font-size:16px;}
.feedback-points{margin-top:28px;display:flex;flex-direction:column;gap:14px;}
.feedback-points li{display:flex;gap:12px;font-size:15px;color:var(--dark-text);}
.feedback-points i{margin-top:5px;color:var(--cyan);font-size:14px;}
.form-card{
  background:var(--white);border-radius:var(--radius-lg);padding:30px;
  box-shadow:0 30px 60px -28px rgba(0,0,0,.7);
}
.form-row{margin-bottom:18px;}
.form-row.two{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.form-control{
  width:100%;height:48px;padding:0 14px;border-radius:10px;
  border:1px solid var(--line);background:#FBFBFD;color:var(--ink);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
textarea.form-control{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-control::placeholder{color:#9AA0AC;}
.form-control:focus{
  outline:none;border-color:var(--purple);background:#fff;
  box-shadow:0 0 0 4px rgba(106,76,255,.12);
}
select.form-control{
  appearance:none;-webkit-appearance:none;padding-right:40px;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235B6270' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;
}
.radio-pills{display:flex;flex-wrap:wrap;gap:10px;}
.radio-pills label{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border:1px solid var(--line);border-radius:999px;
  font-size:14px;color:var(--muted);cursor:pointer;background:#FBFBFD;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.radio-pills input{position:absolute;opacity:0;pointer-events:none;}
.radio-pills label:hover{border-color:rgba(106,76,255,.5);color:var(--purple);}
.radio-pills input:checked + span{color:var(--purple);font-weight:600;}
.radio-pills label:has(input:checked){border-color:var(--purple);background:var(--purple-soft);}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:6px;}
.form-note{font-size:12px;color:var(--muted);line-height:1.6;max-width:360px;}
.form-note a{color:var(--purple);text-decoration:underline;}
.form-error{color:var(--err);font-size:12.5px;margin-top:6px;display:none;}
.form-row.has-error .form-control{border-color:var(--err);}
.form-row.has-error .form-error{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:var(--dark-muted);padding:64px 0 0;border-top:1px solid var(--dark-line);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:600;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;max-width:300px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;transition:color .2s ease;}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{
  border-top:1px solid var(--dark-line);padding:20px 0;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:12px;font-size:13px;
}
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:50%;
  background:var(--purple);color:#fff;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 14px 30px -14px rgba(106,76,255,.9);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background .2s ease;
  z-index:90;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:#7C61FF;}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .hero h1{font-size:44px;}
  .hero-copy{padding-right:32px;}
  .highlight-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media screen and (max-width:991px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .nav-search{display:none;}
  .nav-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .hero{min-height:auto;padding:60px 0 72px;background-image:linear-gradient(120deg,rgba(11,13,18,.96) 0%,rgba(11,13,18,.88) 55%,rgba(11,13,18,.78) 100%),url('/assets/images/backpic/back-2.png');}
  .hero-copy{flex:0 0 100%;max-width:100%;padding-right:0;}
  .hero-visual{flex:0 0 100%;max-width:100%;margin-top:36px;}
  .hero h1{font-size:36px;}
  .hero-sub{font-size:16.5px;}
  .hero-stats{gap:28px;margin-top:34px;}
  .compare{grid-template-columns:1fr;gap:28px;}
  .compare-card.is-featured{transform:none;}
  .compare-card.is-featured:hover{transform:translateY(-4px);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .feedback-inner{grid-template-columns:1fr;gap:36px;}
  .timeline::before{left:92px;}
  .tl-time{flex:0 0 92px;padding-right:22px;font-size:14px;}
  .tl-node{left:86px;}
  .tl-body{margin-left:30px;}
}
@media screen and (max-width:767px){
  .brand-text{font-size:15px;}
  .hero h1{font-size:31px;line-height:1.22;}
  .section-head h2{font-size:24px;}
  .feedback-copy h2{font-size:24px;}
  .highlight-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-desc{max-width:none;}
  .timeline::before{left:16px;}
  .tl-item{display:block;padding-left:34px;padding-bottom:26px;}
  .tl-time{padding:0;text-align:left;margin-bottom:8px;}
  .tl-node{left:10px;top:2px;}
  .tl-body{margin-left:0;}
  .form-row.two{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .form-foot{flex-direction:column;align-items:stretch;}
  .form-note{max-width:none;}
}
@media screen and (max-width:559px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .hero{padding:48px 0 60px;}
  .hero h1{font-size:28px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .hero-stats{gap:20px;}
  .hero-stats li{min-width:calc(50% - 10px);}
  .footer-grid{grid-template-columns:1fr;}
  .to-top{right:16px;bottom:18px;}
}

/* roulang page: article */
:root{
  --c-primary:#6A4CFF;
  --c-primary-deep:#5638E8;
  --c-accent:#2AD8C0;
  --c-action:#FFB020;
  --c-action-hi:#FFC24D;
  --c-dark:#0B0D12;
  --c-dark-2:#12151D;
  --c-dark-line:rgba(255,255,255,.08);
  --c-dark-text:#E8EAF0;
  --c-dark-muted:#9AA2B4;
  --c-bg:#F4F5F8;
  --c-card:#FFFFFF;
  --c-text:#1C1F27;
  --c-muted:#5B6270;
  --c-line:#E6E8EF;
  --c-lilac:#F3F1FF;
  --c-success:#17A673;
  --c-error:#E5484D;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(16,20,32,.04),0 12px 28px -12px rgba(16,20,32,.14);
  --shadow-hover:0 18px 40px -16px rgba(106,76,255,.28);
  --font-sans:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:Menlo,Consolas,ui-monospace,"SFMono-Regular",monospace;
  --sp-section:96px;
}
*,*::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:1.7;
  color:var(--c-text);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.mono{font-family:var(--font-mono)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-action{background:var(--c-action);color:#14161C}
.btn-action:hover{background:var(--c-action-hi);transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(106,76,255,.65)}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px)}
.btn-outline{border-color:rgba(106,76,255,.45);color:var(--c-primary);background:transparent}
.btn-outline:hover{background:rgba(106,76,255,.08);border-color:var(--c-primary)}
.btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.2)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn:active{transform:translateY(0);box-shadow:none}

/* ---------- 双层导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--c-dark);border-bottom:1px solid var(--c-dark-line);transition:background .25s ease,box-shadow .25s ease}
.site-header.is-scrolled{background:rgba(11,13,18,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);box-shadow:0 12px 30px -18px rgba(0,0,0,.9)}
.header-top{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 32px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  display:flex;align-items:center;justify-content:center;
  color:#0B0D12;font-size:15px;font-weight:700;
}
.header-search{position:relative;flex:1 1 auto;max-width:420px}
.header-search input{
  width:100%;height:40px;border-radius:var(--radius-pill);
  border:1px solid var(--c-dark-line);background:rgba(255,255,255,.06);
  color:var(--c-dark-text);padding:0 46px 0 18px;transition:border-color .2s ease,background .2s ease;
}
.header-search input::placeholder{color:#7C849A}
.header-search input:focus{outline:none;border-color:rgba(106,76,255,.75);background:rgba(255,255,255,.1)}
.header-search .search-btn{
  position:absolute;right:4px;top:4px;width:32px;height:32px;border-radius:50%;
  border:0;background:rgba(106,76,255,.9);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background .2s ease;
}
.header-search .search-btn:hover{background:var(--c-primary)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--c-dark-line);
  background:rgba(255,255,255,.06);color:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.nav-channels{background:var(--c-dark);border-top:1px solid var(--c-dark-line)}
.nav-channels-inner{
  display:flex;gap:10px;overflow-x:auto;padding-top:8px;padding-bottom:12px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-channels-inner::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;padding:8px 16px;border-radius:var(--radius-pill);
  font-size:14px;color:var(--c-dark-muted);border:1px solid transparent;white-space:nowrap;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.pill:hover{color:#fff;background:rgba(255,255,255,.08)}
.pill.is-active{background:var(--c-primary);color:#fff;border-color:rgba(255,255,255,.14)}
.mobile-drawer{
  display:none;background:var(--c-dark-2);border-top:1px solid var(--c-dark-line);
  padding:16px 0 22px;
}
.mobile-drawer .drawer-title{font-size:12px;letter-spacing:.14em;color:#6C748A;margin:6px 0 10px;text-transform:uppercase}
.mobile-drawer a{
  display:block;padding:12px 4px;color:var(--c-dark-text);font-size:15px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.mobile-drawer a:hover{color:var(--c-accent)}
body.drawer-open .mobile-drawer{display:block}

/* ---------- 面包屑 + 文章头 ---------- */
.article-hero{
  position:relative;color:#fff;padding:26px 0 54px;
  background-color:var(--c-dark);
  background-image:linear-gradient(100deg,rgba(11,13,18,.97) 0%,rgba(11,13,18,.86) 46%,rgba(11,13,18,.62) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;
  overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:24px 24px;pointer-events:none;
}
.article-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(106,76,255,.5),rgba(42,216,192,.12) 55%,transparent 72%);
  filter:blur(6px);pointer-events:none;
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-dark-muted)}
.breadcrumb a{color:var(--c-dark-muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:#C9CEDB;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:820px;margin-top:26px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-accent{background:rgba(42,216,192,.14);color:var(--c-accent);border:1px solid rgba(42,216,192,.35)}
.article-title{
  font-size:clamp(28px,4.2vw,44px);line-height:1.22;font-weight:700;letter-spacing:-.01em;
  margin:16px 0 20px;color:#fff;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--c-dark-muted);
  font-family:var(--font-mono);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--c-accent);font-size:12px}

/* ---------- 正文 ---------- */
.article-wrap{padding:64px 0 var(--sp-section)}
.article-main{max-width:780px;margin:0 auto}
.article-body{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:44px 48px;font-size:17px;line-height:1.85;color:var(--c-text);
  box-shadow:var(--shadow-card);
}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  position:relative;font-size:26px;font-weight:600;line-height:1.35;
  margin:2em 0 .8em;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
}
.article-body h3{font-size:20px;font-weight:600;margin:1.7em 0 .6em}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.45em 0;padding-left:.2em}
.article-body li::marker{color:var(--c-primary)}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(106,76,255,.35);transition:border-color .2s ease,color .2s ease}
.article-body a:hover{color:var(--c-primary-deep);border-bottom-color:var(--c-primary-deep)}
.article-body strong{font-weight:700}
.article-body img{border-radius:12px;margin:1.6em auto;border:1px solid var(--c-line)}
.article-body figure{margin:1.8em 0}
.article-body figure img{margin:0 auto}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px}
.article-body blockquote{
  margin:1.7em 0;padding:18px 22px;border-left:4px solid var(--c-primary);
  background:var(--c-lilac);border-radius:0 12px 12px 0;color:#3A3E55;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;border:1px solid var(--c-line);border-radius:12px;overflow:hidden}
.article-body th{background:#F7F8FB;text-align:left;font-weight:600;color:#2A2E3C}
.article-body th,.article-body td{padding:12px 15px;border-bottom:1px solid var(--c-line)}
.article-body tr:last-child td{border-bottom:0}
.article-body code{background:#F1F2F7;padding:2px 6px;border-radius:6px;font-family:var(--font-mono);font-size:.9em;color:var(--c-primary-deep)}
.article-body hr{border:0;border-top:1px dashed var(--c-line);margin:2.2em 0}

/* 空态 */
.empty-state{
  background:var(--c-card);border:1px dashed #D8DCE8;border-radius:var(--radius-lg);
  padding:70px 28px;text-align:center;
}
.empty-state i{font-size:34px;color:#B9BFD0}
.empty-state h2{font-size:20px;font-weight:600;margin:18px 0 8px}
.empty-state p{color:var(--c-muted);font-size:15px;margin-bottom:22px}

/* ---------- 文中 CTA ---------- */
.inline-cta{
  position:relative;margin:44px 0 0;padding:30px 32px;border-radius:var(--radius-lg);
  background:linear-gradient(130deg,#12151D 0%,#0B0D12 100%);
  border:1px solid rgba(106,76,255,.35);
  box-shadow:inset 0 0 46px rgba(106,76,255,.12);
  display:flex;align-items:center;gap:26px;justify-content:space-between;flex-wrap:wrap;
}
.inline-cta .cta-text{flex:1 1 340px;min-width:0}
.inline-cta h3{color:#fff;font-size:20px;font-weight:600;margin-bottom:8px}
.inline-cta p{color:var(--c-dark-muted);font-size:14.5px;line-height:1.7;margin:0}
.inline-cta .cta-btns{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 导航条（上一篇 / 下一篇） ---------- */
.post-nav{
  display:flex;gap:16px;margin-top:40px;flex-wrap:wrap;
}
.post-nav a{
  flex:1 1 280px;padding:18px 20px;border-radius:var(--radius-md);
  background:var(--c-card);border:1px solid var(--c-line);box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-nav a:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(106,76,255,.35)}
.post-nav .nav-label{display:block;font-size:12px;color:var(--c-muted);letter-spacing:.08em;margin-bottom:6px}
.post-nav .nav-title{font-size:15px;font-weight:600;line-height:1.55;color:var(--c-text)}
.post-nav a:hover .nav-title{color:var(--c-primary)}
.back-row{display:flex;justify-content:center;margin-top:34px}

/* ---------- 相关阅读 ---------- */
.related{padding:0 0 var(--sp-section)}
.section-head{max-width:820px;margin:0 auto 32px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:12px;
}
.section-head .eyebrow::before{content:"";width:20px;height:2px;background:var(--c-primary);border-radius:2px}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:600;letter-spacing:-.01em}
.section-head p{color:var(--c-muted);font-size:15px;margin-top:10px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:16px;overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(106,76,255,.3)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E9EBF2}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .badge{position:absolute;left:12px;top:12px;background:rgba(11,13,18,.78);color:#fff;backdrop-filter:blur(4px)}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:17px;font-weight:600;line-height:1.55;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card-body h3{color:var(--c-primary)}
.card-body p{font-size:14px;color:var(--c-muted);line-height:1.7;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:12.5px;color:#8A90A0;font-family:var(--font-mono)}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:#C4C9D6}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:var(--c-dark-text);padding:64px 0 26px;border-top:1px solid var(--c-dark-line)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff}
.footer-desc{color:var(--c-dark-muted);font-size:14px;line-height:1.8;margin-top:16px;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:var(--c-dark-muted);transition:color .2s ease}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--c-dark-line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:#6C748A;font-family:var(--font-mono);
}
#backTop{
  position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(106,76,255,.5);background:rgba(11,13,18,.9);color:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:70;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease;
}
#backTop.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
#backTop:hover{background:var(--c-primary);border-color:var(--c-primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sp-section:72px}
  .container{padding:0 24px}
}
@media (max-width:991px){
  .header-search{max-width:260px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .article-body{padding:36px 32px}
}
@media (max-width:767px){
  :root{--sp-section:56px}
  .container{padding:0 18px}
  .header-top{gap:12px;height:60px}
  .brand{font-size:15px}
  .brand-mark{width:28px;height:28px;flex:0 0 28px;font-size:13px}
  .header-search{
    position:absolute;left:18px;right:18px;top:66px;max-width:none;
    opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .22s ease;
  }
  .header-search.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .header-actions .btn-action{height:38px;padding:0 14px;font-size:14px}
  .icon-btn{display:flex}
  .nav-channels-inner{padding-bottom:10px;gap:8px}
  .article-hero{padding:20px 0 40px;background-image:linear-gradient(180deg,rgba(11,13,18,.96),rgba(11,13,18,.86)),url('/assets/images/backpic/back-2.png');background-position:center}
  .breadcrumb .current{max-width:190px}
  .article-meta{font-size:12px;gap:8px 16px}
  .article-wrap{padding:36px 0 var(--sp-section)}
  .article-body{padding:26px 20px;font-size:16px;border-radius:16px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .inline-cta{padding:24px 20px;gap:18px}
  .inline-cta .cta-btns{width:100%}
  .inline-cta .cta-btns .btn{flex:1 1 auto}
  .card-grid{grid-template-columns:1fr}
  .post-nav a{flex:1 1 100%}
  .back-row .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:560px){
  .brand span:last-child{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .article-title{font-size:26px}
  .header-actions .btn-action{padding:0 12px}
}

/* roulang page: category1 */
:root{
  --brand:#6A4CFF;
  --brand-deep:#4B31D6;
  --cyan:#2AD8C0;
  --action:#FFB020;
  --action-hi:#FFC24D;
  --dark:#0B0D12;
  --dark-2:#12151D;
  --dark-line:rgba(255,255,255,.08);
  --dark-text:#E8EAF0;
  --dark-muted:#9AA2B4;
  --page:#F4F5F8;
  --card:#FFFFFF;
  --text:#1C1F27;
  --muted:#5B6270;
  --line:#E6E8EF;
  --tint:#F3F1FF;
  --ok:#17A673;
  --err:#E5484D;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --shadow:0 1px 2px rgba(16,20,32,.04), 0 12px 28px -12px rgba(16,20,32,.14);
  --shadow-hover:0 18px 40px -16px rgba(106,76,255,.28);
  --container:1200px;
  --section:96px;
  --mono:ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-deep)}
button,input,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:600;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:var(--section) 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}
.section-head h2{font-size:32px;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:16px;max-width:660px}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ============ 双层导航 ============ */
.site-header{position:sticky;top:0;z-index:120;background:var(--dark);border-bottom:1px solid var(--dark-line)}
.site-header.is-scrolled{background:rgba(11,13,18,.9);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.nav-top{height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16.5px;letter-spacing:0}
.brand:hover{color:#fff}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 32px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  color:#fff;font-size:16px;font-weight:700;
}
.nav-search{
  flex:1 1 auto;max-width:340px;position:relative;
}
.nav-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--dark-muted);font-size:14px}
.nav-search input{
  width:100%;height:40px;border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid var(--dark-line);
  color:#fff;padding:0 16px 0 38px;font-size:14px;
}
.nav-search input::placeholder{color:var(--dark-muted)}
.nav-search input:focus{outline:none;border-color:var(--brand);background:rgba(255,255,255,.12);box-shadow:0 0 0 4px rgba(106,76,255,.25)}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:12px;
  padding:11px 20px;font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--action);color:#181A20;box-shadow:0 10px 24px -12px rgba(255,176,32,.8)}
.btn-primary:hover{background:var(--action-hi);color:#181A20;transform:translateY(-1px);box-shadow:0 14px 30px -12px rgba(255,176,32,.9)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px -8px rgba(255,176,32,.7)}
.btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-outline:hover{background:rgba(106,76,255,.08);border-color:var(--brand-deep);color:var(--brand-deep)}
.btn-sm{padding:8px 15px;font-size:13.5px;border-radius:10px}
.btn-block{width:100%}
.hamburger{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.12);border:1px solid var(--dark-line);
  color:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-channels{border-top:1px solid var(--dark-line);background:var(--dark-2)}
.nav-channels-inner{
  display:flex;align-items:center;gap:8px;
  height:44px;overflow-x:auto;scrollbar-width:none;
}
.nav-channels-inner::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;
  padding:7px 15px;border-radius:999px;font-size:14px;font-weight:500;
  color:var(--dark-muted);border:1px solid transparent;transition:all .2s ease;
}
.pill:hover{color:#fff;background:rgba(255,255,255,.08)}
.pill.is-active{background:var(--brand);color:#fff;box-shadow:0 8px 20px -10px rgba(106,76,255,.9)}
.nav-drawer{
  display:none;background:var(--dark-2);border-top:1px solid var(--dark-line);
  padding:12px 0 18px;
}
.nav-drawer.is-open{display:block}
.nav-drawer a{display:block;padding:11px 0;color:var(--dark-text);font-size:15px;border-bottom:1px solid var(--dark-line)}
.nav-drawer a:last-child{border-bottom:0}
.nav-drawer a.is-active{color:var(--cyan)}

/* ============ 页面头部条 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:#0B0D12;
  color:#fff;
  padding:64px 0 56px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg, rgba(11,13,18,.96) 0%, rgba(11,13,18,.82) 46%, rgba(11,13,18,.6) 100%), url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.7), transparent 80%);
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.7), transparent 80%);
}
.page-hero .container{position:relative;z-index:2}
.crumb{font-size:13px;color:var(--dark-muted);margin-bottom:20px}
.crumb a{color:var(--dark-muted)}
.crumb a:hover{color:#fff}
.crumb span.sep{margin:0 8px;opacity:.6}
.crumb .current{color:#fff}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(42,216,192,.14);color:var(--cyan);border:1px solid rgba(42,216,192,.3);
}
.tag-violet{background:rgba(106,76,255,.16);color:#C3B6FF;border-color:rgba(106,76,255,.34)}
.page-hero h1{font-size:46px;font-weight:700;line-height:1.2;max-width:820px;margin-bottom:18px}
.page-hero .lead{font-size:17px;color:var(--dark-text);opacity:.92;max-width:660px;margin-bottom:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px 26px;font-size:13.5px;color:var(--dark-muted)}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta i{color:var(--cyan)}
.filter-row{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;
  padding-top:26px;border-top:1px dashed rgba(255,255,255,.16);
}
.filter-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:999px;font-size:13.5px;font-weight:500;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);color:var(--dark-text);
  cursor:pointer;transition:all .2s ease;
}
.filter-pill:hover{background:rgba(255,255,255,.14);color:#fff}
.filter-pill.is-active{background:var(--brand);border-color:var(--brand);color:#fff}
.filter-pill i{font-size:12px}

/* ============ 数据条 ============ */
.stat-strip{background:#fff;border-bottom:1px solid var(--line)}
.stat-grid{display:flex;flex-wrap:wrap;gap:0}
.stat-item{
  flex:1 1 200px;padding:24px 0;border-right:1px solid var(--line);
}
.stat-item:last-child{border-right:0}
.stat-item .num{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--brand);line-height:1.2}
.stat-item .num small{font-size:14px;font-weight:600;margin-left:2px}
.stat-item .lbl{font-size:13.5px;color:var(--muted);margin-top:4px}

/* ============ 入口列表 ============ */
.entry-grid{margin-left:-11px;margin-right:-11px}
.entry-grid > .cell{padding-left:11px;padding-right:11px;margin-bottom:22px;display:flex}
.entry-card{
  display:flex;flex-direction:column;width:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(106,76,255,.35)}
.entry-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDEFF5}
.entry-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.entry-card:hover .entry-cover img{transform:scale(1.04)}
.entry-badge{
  position:absolute;left:14px;top:14px;
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(11,13,18,.78);color:#fff;backdrop-filter:blur(4px);
  border:1px solid rgba(255,255,255,.16);
}
.entry-badge.cyan{background:rgba(42,216,192,.9);color:#06231F;border-color:transparent}
.entry-badge.violet{background:rgba(106,76,255,.92);color:#fff;border-color:transparent}
.entry-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto}
.entry-body h3{font-size:20px;margin-bottom:10px;line-height:1.4}
.entry-card:hover .entry-body h3{color:var(--brand)}
.entry-body p{font-size:14px;line-height:1.75;color:var(--muted);margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.entry-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);
}
.entry-meta .left{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.entry-meta .mono{color:var(--brand)}
.entry-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:13.5px}
.entry-link i{transition:transform .2s ease}
.entry-card:hover .entry-link i{transform:translateX(3px)}

/* ============ 分页外观 ============ */
.pager{display:flex;justify-content:center;align-items:center;gap:8px;padding:16px 0 72px;flex-wrap:wrap}
.pager a{
  min-width:42px;height:42px;padding:0 14px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);color:var(--muted);
  font-size:14px;font-weight:600;transition:all .2s ease;
}
.pager a:hover{border-color:var(--brand);color:var(--brand);background:var(--tint)}
.pager a.is-current{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 10px 22px -12px rgba(106,76,255,.9)}
.pager a.is-disabled{opacity:.45;pointer-events:none}

/* ============ 自查清单 ============ */
.selfcheck{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.check-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.check-item{
  position:relative;padding:26px 24px;border-radius:var(--r-lg);
  background:var(--tint);border:1px solid rgba(106,76,255,.14);
}
.check-item .idx{
  font-family:var(--mono);font-size:13px;font-weight:700;color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:999px;background:#fff;border:1px solid rgba(106,76,255,.25);
  margin-bottom:16px;
}
.check-item h3{font-size:19px;margin-bottom:10px}
.check-item p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ============ CTA 条 ============ */
.cta-band{padding:0 0 var(--section)}
.cta-card{
  position:relative;overflow:hidden;border-radius:24px;
  background:linear-gradient(120deg,#12151D 0%,#191436 60%,#0F2A2A 100%);
  border:1px solid rgba(106,76,255,.35);
  padding:48px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06), 0 30px 60px -30px rgba(11,13,18,.9);
}
.cta-card::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle at center, rgba(42,216,192,.35), rgba(106,76,255,.25) 45%, transparent 70%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:620px}
.cta-copy h2{color:#fff;font-size:30px;margin-bottom:12px}
.cta-copy p{color:var(--dark-text);opacity:.85;font-size:15.5px}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:var(--dark-text);padding:72px 0 0;border-top:1px solid var(--dark-line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:#fff;font-size:16.5px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--dark-muted);line-height:1.85;max-width:340px}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:var(--dark-muted)}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;border-top:1px solid var(--dark-line);
  font-size:13px;color:var(--dark-muted);
}
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:150;
  width:46px;height:46px;border-radius:999px;border:1px solid rgba(106,76,255,.5);
  background:var(--brand);color:#fff;display:grid;place-items:center;cursor:pointer;
  box-shadow:0 14px 30px -14px rgba(106,76,255,.9);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease, transform .25s ease, visibility .25s ease;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-deep)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 24px}
  .page-hero h1{font-size:40px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media (max-width:991px){
  :root{--section:72px}
  .nav-search{display:none}
  .check-list{grid-template-columns:1fr 1fr}
  .cta-card{flex-direction:column;align-items:flex-start;padding:38px 32px}
  .page-hero h1{font-size:36px}
}
@media (max-width:767px){
  :root{--section:56px}
  .container{padding:0 18px}
  .nav-top{height:58px}
  .hamburger{display:inline-flex}
  .nav-actions .btn-primary{display:none}
  .brand{font-size:15px}
  .page-hero{padding:44px 0 40px}
  .page-hero h1{font-size:30px}
  .page-hero .lead{font-size:15.5px}
  .section-head h2{font-size:24px}
  .stat-item{flex:1 1 50%;border-right:0;border-bottom:1px solid var(--line);padding:18px 0}
  .stat-item:nth-child(odd){padding-right:16px}
  .check-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .cta-copy h2{font-size:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .entry-meta{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:560px){
  body{font-size:16px}
  .page-hero h1{font-size:27px}
  .filter-pill{font-size:13px;padding:7px 13px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .to-top{right:14px;bottom:16px;width:42px;height:42px}
}

/* roulang page: category2 */
:root{
  --violet:#6A4CFF;
  --violet-deep:#5440D8;
  --cyan:#2AD8C0;
  --amber:#FFB020;
  --ink:#0B0D12;
  --ink-2:#12151D;
  --ink-line:rgba(255,255,255,.08);
  --ink-text:#E8EAF0;
  --ink-muted:#9AA2B4;
  --page:#F4F5F8;
  --card:#FFFFFF;
  --text:#1C1F27;
  --muted:#5B6270;
  --line:#E6E8EF;
  --lilac:#F3F1FF;
  --ok:#17A673;
  --err:#E5484D;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(16,20,32,.04),0 12px 28px -12px rgba(16,20,32,.14);
  --shadow-hover:0 18px 40px -16px rgba(106,76,255,.28);
  --font-sans:system-ui,"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:ui-monospace,Menlo,Consolas,"Courier New",monospace;
  --nav-h:108px;
}
*,*::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:1.7;
  color:var(--text);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--violet);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--violet-deep)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text)}
:focus-visible{outline:2px solid var(--violet);outline-offset:2px;border-radius:4px}
::selection{background:rgba(106,76,255,.22)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section[id]{scroll-margin-top:130px}
.section-tint{background:var(--lilac)}
.section-dark{background:var(--ink);color:var(--ink-text)}
.section-dark .section-sub{color:var(--ink-muted)}

.section-head{max-width:780px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  color:var(--violet);background:var(--lilac);
  padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:16px;
}
.section-dark .eyebrow{background:rgba(106,76,255,.18);color:#C9BEFF}
h2{font-size:32px;line-height:1.28;font-weight:600;letter-spacing:-.01em;margin-bottom:14px}
h3{font-size:20px;line-height:1.4;font-weight:600}
.section-sub{font-size:16px;color:var(--muted);line-height:1.8}
.mono{font-family:var(--font-mono)}

/* ============ 双层导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--ink);
  border-bottom:1px solid var(--ink-line);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(11,13,18,.9);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  box-shadow:0 16px 40px -24px rgba(0,0,0,.9);
}
.nav-top-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#fff;flex:0 0 auto}
.brand:hover{color:#fff}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  display:grid;place-items:center;
  font-size:17px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--violet),var(--cyan));
  box-shadow:0 6px 18px -8px rgba(106,76,255,.9);
}
.brand-text{font-size:16px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.nav-search{
  position:relative;flex:1 1 auto;max-width:440px;display:flex;align-items:center;
}
.nav-search i{position:absolute;left:14px;font-size:14px;color:var(--ink-muted)}
.nav-search input{
  width:100%;height:40px;padding:0 14px 0 38px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-pill);
  color:#fff;font-size:14px;outline:none;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:#7C8497}
.nav-search input:focus{
  border-color:rgba(106,76,255,.85);
  background:rgba(255,255,255,.1);
  box-shadow:0 0 0 4px rgba(106,76,255,.18);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  color:#fff;font-size:16px;cursor:pointer;
}
.nav-toggle:hover{background:rgba(255,255,255,.16)}

.nav-channels{background:#0E1119;border-top:1px solid rgba(255,255,255,.05)}
.nav-channels-inner{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;padding:10px 32px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-channels-inner::-webkit-scrollbar{display:none}
.pill{
  display:inline-flex;align-items:center;white-space:nowrap;
  padding:7px 16px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:500;color:var(--ink-muted);
  border:1px solid transparent;transition:all .2s ease;
}
.pill:hover{color:#fff;background:rgba(255,255,255,.08)}
.pill.is-active{background:var(--violet);color:#fff;box-shadow:0 8px 20px -12px rgba(106,76,255,.9)}

.mobile-drawer{
  display:none;padding:8px 24px 20px;
  border-top:1px solid var(--ink-line);background:#0E1119;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:block;padding:12px 4px;color:var(--ink-text);font-size:15px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.mobile-drawer a.is-active{color:var(--cyan)}
.mobile-drawer .drawer-search{margin:14px 0 6px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:12px;
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn:active{transform:translateY(0);box-shadow:none}
.btn-amber{background:var(--amber);color:#231602;box-shadow:0 10px 24px -12px rgba(255,176,32,.75)}
.btn-amber:hover{background:#FFC24D;color:#231602;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-primary{background:var(--violet);color:#fff;box-shadow:0 10px 24px -14px rgba(106,76,255,.9)}
.btn-primary:hover{background:var(--violet-deep);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:rgba(106,76,255,.42);color:var(--violet)}
.btn-ghost:hover{background:rgba(106,76,255,.08);border-color:var(--violet);color:var(--violet-deep)}
.btn-ghost-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.2);color:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;pointer-events:none}

/* ============ 页面头部条 ============ */
.page-head{position:relative;overflow:hidden;background:var(--ink);color:#fff}
.page-head-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.55;
}
.page-head-veil{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(6,8,14,.95) 0%,rgba(6,8,14,.86) 42%,rgba(6,8,14,.58) 100%);
}
.page-head-inner{position:relative;z-index:2;padding:64px 0 68px;max-width:880px}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.62);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{margin:0 8px;color:rgba(255,255,255,.38)}
.breadcrumb .current{color:rgba(255,255,255,.86)}
.page-head h1{
  font-size:46px;line-height:1.2;font-weight:700;letter-spacing:-.01em;
  color:#fff;margin-bottom:18px;
}
.page-head-lead{font-size:17px;line-height:1.85;color:#D7DAE4;max-width:720px;margin-bottom:28px}
.filter-pills{display:flex;flex-wrap:wrap;gap:10px}
.filter-pills .pill{
  color:#C3C8D6;background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.12);
  padding:8px 18px;
}
.filter-pills .pill:hover{background:rgba(255,255,255,.16);color:#fff}
.filter-pills .pill.is-active{background:var(--cyan);color:#062A25;border-color:transparent;font-weight:600}
.page-head-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:34px;padding-top:26px;border-top:1px dashed rgba(255,255,255,.18)}
.page-head-stats div{min-width:120px}
.page-head-stats .num{font-family:var(--font-mono);font-size:26px;font-weight:600;color:var(--cyan);line-height:1.2}
.page-head-stats .lab{font-size:13px;color:var(--ink-muted);margin-top:4px}

/* ============ 防护组合对比 ============ */
.plan-grid{margin-top:8px}
.plan-card{
  position:relative;height:100%;display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 22px;margin-bottom:24px;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(106,76,255,.35)}
.plan-level{
  font-family:var(--font-mono);font-size:13px;font-weight:600;color:var(--violet);
  background:var(--lilac);border-radius:var(--radius-pill);padding:4px 12px;align-self:flex-start;
  margin-bottom:14px;letter-spacing:.06em;
}
.plan-card h3{margin-bottom:8px}
.plan-desc{font-size:14px;color:var(--muted);line-height:1.7;margin-bottom:18px;min-height:48px}
.plan-list{margin-bottom:22px;flex:1 0 auto}
.plan-list li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;line-height:1.65;color:var(--text);
  padding:8px 0;border-bottom:1px dashed var(--line);
}
.plan-list li:last-child{border-bottom:0}
.plan-list li i{margin-top:4px;font-size:13px}
.plan-list li.ok i{color:var(--ok)}
.plan-list li.no{color:#9BA2B0}
.plan-list li.no i{color:#C3C8D4}
.plan-card.is-featured{
  border-color:rgba(106,76,255,.55);
  box-shadow:0 20px 46px -20px rgba(106,76,255,.5);
  transform:translateY(-12px);
}
.plan-card.is-featured:hover{transform:translateY(-14px)}
.plan-badge{
  position:absolute;top:-13px;right:20px;
  background:var(--violet);color:#fff;font-size:12px;font-weight:600;
  padding:5px 14px;border-radius:var(--radius-pill);
  box-shadow:0 10px 22px -12px rgba(106,76,255,.95);
}

/* ============ 步骤卡 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;margin-top:12px}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:28px 22px 24px;
  box-shadow:var(--shadow-card);transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.step-dot{
  display:grid;place-items:center;width:36px;height:36px;border-radius:50%;
  font-family:var(--font-mono);font-size:15px;font-weight:700;color:#062A25;
  background:var(--cyan);margin-bottom:16px;
  box-shadow:0 0 0 4px rgba(42,216,192,.16);
}
.step:not(:last-child)::after{
  content:"";position:absolute;top:46px;right:-24px;width:24px;
  border-top:2px dashed rgba(106,76,255,.35);
}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:14px;color:var(--muted);line-height:1.75}
.step-meta{
  display:inline-block;margin-top:16px;font-family:var(--font-mono);font-size:12px;
  color:var(--violet);background:var(--lilac);border-radius:var(--radius-pill);padding:3px 10px;
}

/* ============ 异常处理图文卡 ============ */
.risk-card{
  height:100%;display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-card);margin-bottom:24px;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.risk-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(106,76,255,.3)}
.risk-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E9EBF2}
.risk-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.risk-card:hover .risk-thumb img{transform:scale(1.04)}
.risk-thumb .badge{
  position:absolute;top:12px;left:12px;
  font-size:12px;font-weight:600;color:#fff;background:rgba(11,13,18,.78);
  padding:5px 12px;border-radius:var(--radius-pill);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.risk-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto}
.risk-body h3{font-size:18px;margin-bottom:10px}
.risk-body p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:16px;flex:1 0 auto}
.risk-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.risk-link i{font-size:12px;transition:transform .2s ease}
.risk-link:hover i{transform:translateX(3px)}

/* ============ 深色清单区 ============ */
.checklist-grid{align-items:center}
.progress-card{
  background:var(--ink-2);border:1px solid rgba(106,76,255,.35);
  border-radius:var(--radius-lg);padding:26px;margin-top:26px;
  box-shadow:inset 0 0 30px rgba(106,76,255,.16);
}
.progress-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:14px}
.progress-head .label{font-size:14px;color:var(--ink-muted)}
.progress-head .value{font-family:var(--font-mono);font-size:22px;font-weight:600;color:var(--cyan)}
.progress-bar{height:8px;border-radius:var(--radius-pill);background:rgba(255,255,255,.1);overflow:hidden}
.progress-bar span{display:block;height:100%;width:80%;border-radius:var(--radius-pill);background:linear-gradient(90deg,var(--violet),var(--cyan))}
.progress-note{font-size:13px;color:var(--ink-muted);margin-top:14px;line-height:1.7}
.check-list{background:var(--ink-2);border:1px solid var(--ink-line);border-radius:var(--radius-lg);padding:12px 24px}
.check-list li{
  display:flex;align-items:flex-start;gap:14px;
  padding:16px 0;border-bottom:1px solid rgba(255,255,255,.07);
  font-size:15px;line-height:1.7;color:var(--ink-text);
}
.check-list li:last-child{border-bottom:0}
.check-list li i{color:var(--cyan);margin-top:5px;font-size:14px}
.check-list li strong{color:#fff;font-weight:600}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  margin-bottom:14px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(106,76,255,.3)}
.faq-item.is-open{border-color:rgba(106,76,255,.5);box-shadow:var(--shadow-card)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;cursor:pointer;text-align:left;
  padding:20px 22px;font-size:17px;font-weight:600;color:var(--text);
}
.faq-q i{color:var(--violet);font-size:14px;transition:transform .3s ease;flex:0 0 auto}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{
  padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--muted);
}

/* ============ 反馈表单 ============ */
.feedback-panel{
  background:var(--ink-2);border:1px solid var(--ink-line);border-radius:var(--radius-lg);
  padding:26px 24px;color:var(--ink-text);
}
.feedback-panel h3{color:#fff;font-size:18px;margin-bottom:12px}
.feedback-panel ul li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-muted);
  padding:9px 0;line-height:1.7;
}
.feedback-panel ul li i{color:var(--cyan);margin-top:5px;font-size:12px}
.form-card{
  background:var(--card);border-radius:var(--radius-lg);padding:30px 28px;
  box-shadow:0 24px 60px -28px rgba(0,0,0,.65);
}
.form-card h3{font-size:20px;margin-bottom:8px}
.form-card .form-sub{font-size:14px;color:var(--muted);margin-bottom:22px}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin-bottom:8px}
.form-row input,.form-row select,.form-row textarea{
  width:100%;height:48px;padding:0 14px;border-radius:10px;
  border:1px solid var(--line);background:#FBFBFD;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.form-row textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  border-color:var(--violet);background:#fff;
  box-shadow:0 0 0 4px rgba(106,76,255,.12);
}
.form-row select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235B6270' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
  padding-right:40px;
}
.pill-choice{display:flex;flex-wrap:wrap;gap:10px}
.pill-choice label{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:9px 16px;font-size:14px;color:var(--muted);cursor:pointer;
  transition:all .2s ease;margin:0;
}
.pill-choice input{position:absolute;opacity:0;width:0;height:0}
.pill-choice label:hover{border-color:rgba(106,76,255,.45);color:var(--violet)}
.pill-choice input:checked + span{color:var(--violet);font-weight:600}
.pill-choice label:has(input:checked){border-color:var(--violet);background:var(--lilac);color:var(--violet)}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:22px;flex-wrap:wrap}
.form-privacy{font-size:12px;color:#8A91A0;line-height:1.7;max-width:420px}
.form-note{font-size:13px;color:var(--ok);margin-top:14px;display:none}
.form-note.show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--ink-muted);padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;font-weight:600;margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.8;color:var(--ink-muted);max-width:340px}
.footer-col h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:18px}
.footer-col ul li{margin-bottom:12px}
.footer-col ul a{font-size:14px;color:var(--ink-muted)}
.footer-col ul a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:52px;padding-top:22px;border-top:1px solid var(--ink-line);
  font-size:13px;color:#767E90;
}
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;border:0;cursor:pointer;
  background:var(--violet);color:#fff;font-size:15px;
  box-shadow:0 16px 34px -16px rgba(106,76,255,.95);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease,background .2s ease;
  z-index:70;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--violet-deep)}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .page-head h1{font-size:40px}
  .page-head-inner{max-width:820px}
}
@media screen and (max-width:991px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .nav-channels-inner{padding:10px 24px}
  .nav-search{display:none}
  .nav-toggle{display:grid;place-items:center}
  .page-head h1{font-size:34px}
  .page-head-inner{padding:52px 0 56px}
  .page-head-stats{gap:26px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(2)::after{display:none}
  h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .nav-channels-inner{padding:10px 18px}
  .brand-text{font-size:15px}
  .page-head-bg{background-position:center 40%;opacity:.5}
  .page-head-veil{background:linear-gradient(180deg,rgba(6,8,14,.9) 0%,rgba(6,8,14,.96) 100%)}
  .page-head h1{font-size:30px}
  .page-head-lead{font-size:15.5px}
  .page-head-inner{padding:40px 0 46px}
  .page-head-stats{gap:20px;margin-top:26px;padding-top:20px}
  .page-head-stats div{min-width:calc(50% - 10px)}
  h2{font-size:24px}
  h3{font-size:18px}
  .section-head{margin-bottom:30px}
  .plan-card.is-featured{transform:none}
  .plan-card.is-featured:hover{transform:translateY(-2px)}
  .steps{grid-template-columns:1fr;gap:16px}
  .step::after{display:none !important}
  .check-list{padding:8px 18px}
  .faq-q{font-size:16px;padding:18px}
  .faq-a p{padding:0 18px 18px}
  .form-card{padding:24px 20px}
  .form-foot{flex-direction:column;align-items:stretch}
  .form-foot .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .to-top{right:16px;bottom:16px}
}
@media screen and (max-width:560px){
  .page-head h1{font-size:26px}
  .page-head-stats .num{font-size:22px}
  .plan-card{padding:22px 18px}
}