/* roulang page: index */
:root{
  --ink-900:#0C1018;
  --ink-800:#121826;
  --ink-700:#1B2230;
  --line-dark:#232B3A;
  --paper:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --brand:#0ED8B0;
  --brand-700:#08A98A;
  --brand-100:rgba(14,216,176,.12);
  --accent:#FF4E8E;
  --gold:#FFC65C;
  --t-strong:#101828;
  --t-body:#5A6472;
  --t-mute:#98A2B3;
  --w-strong:#FFFFFF;
  --w-body:rgba(255,255,255,.72);
  --w-mute:rgba(255,255,255,.48);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-light:0 8px 24px rgba(16,24,40,.06);
  --sh-light-hover:0 16px 32px rgba(16,24,40,.10);
  --sh-dark:0 16px 40px rgba(0,0,0,.38);
  --sh-brand:0 0 0 3px rgba(14,216,176,.18);
  --ease:160ms ease-out;
  --container:1200px;
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.9;color:var(--t-strong);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
::selection{background:var(--brand);color:var(--ink-900);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:var(--ink-900);box-shadow:0 8px 20px rgba(14,216,176,.24);}
.btn-primary:hover{background:#2AE0BE;box-shadow:0 12px 26px rgba(14,216,176,.36);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(14,216,176,.24);}
.btn-ghost{background:transparent;color:var(--w-strong);border-color:rgba(255,255,255,.28);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-outline{background:#fff;color:var(--t-strong);border-color:var(--line);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-700);transform:translateY(-1px);box-shadow:var(--sh-light);}
.btn-lg{height:52px;padding:0 32px;font-size:16px;}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;box-shadow:none;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);transition:color var(--ease);}
.link-more:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.link-more svg{transition:transform var(--ease);}
.link-more:hover svg{transform:translateX(3px);}

/* ---------- 胶囊 / 标签 ---------- */
.tag-pill{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;color:var(--w-body);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.16);
  transition:border-color var(--ease),color var(--ease),background-color var(--ease);
}
.tag-pill:hover{border-color:var(--brand);color:var(--brand);background:rgba(14,216,176,.08);}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.2px;
  background:var(--brand-100);color:var(--brand-700);
}
.chip-accent{background:rgba(255,78,142,.12);color:var(--accent);}
.chip-gold{background:transparent;border:1px solid rgba(255,198,92,.6);color:#C9922F;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(12,16,24,.94);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line-dark);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),#0AA98C);
  color:var(--ink-900);
  box-shadow:0 6px 16px rgba(14,216,176,.28);
}
.brand-name{font-size:18px;font-weight:700;letter-spacing:-.2px;color:var(--w-strong);}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:64px;padding:0 12px;
  font-size:15px;font-weight:500;color:var(--w-body);
  transition:color var(--ease),transform var(--ease);
}
.nav-link:hover{color:var(--brand);transform:translateY(-1px);}
.nav-link.is-active{color:var(--w-strong);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:14px;height:3px;border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.search-box svg{flex-shrink:0;color:var(--w-mute);}
.search-box input{
  width:150px;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--w-strong);
}
.search-box input::placeholder{color:var(--w-mute);}
.search-box:focus-within{border-color:var(--brand);box-shadow:var(--sh-brand);background:rgba(14,216,176,.06);}
.link-login{font-size:14px;font-weight:500;color:var(--w-body);transition:color var(--ease);}
.link-login:hover{color:var(--brand);}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  color:var(--w-strong);cursor:pointer;align-items:center;justify-content:center;
  transition:border-color var(--ease);
}
.menu-toggle:hover{border-color:var(--brand);}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:70;background:rgba(12,16,24,.6);
  opacity:0;visibility:hidden;transition:opacity 200ms ease-out,visibility 200ms ease-out;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:80;width:82vw;max-width:340px;
  background:var(--ink-800);border-left:1px solid var(--line-dark);
  transform:translateX(100%);transition:transform 240ms ease-out;
  display:flex;flex-direction:column;padding:20px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line-dark);}
.drawer-close{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:var(--w-strong);cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;padding:16px 0;flex:1;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:var(--r-md);
  font-size:16px;color:var(--w-body);transition:background-color var(--ease),color var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(14,216,176,.10);color:var(--brand);}
.drawer-foot{display:flex;flex-direction:column;gap:12px;padding-top:16px;border-top:1px solid var(--line-dark);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--ink-900) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(12,16,24,.94) 0%,rgba(12,16,24,.86) 42%,rgba(12,16,24,.45) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 360px;align-items:center;gap:48px;
  min-height:520px;padding-top:64px;padding-bottom:56px;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:var(--brand);
  background:rgba(14,216,176,.10);border:1px solid rgba(14,216,176,.28);
  margin-bottom:20px;
}
.hero-title{
  font-size:44px;font-weight:800;line-height:1.2;letter-spacing:-.5px;color:var(--w-strong);
  max-width:16ch;margin-bottom:18px;
}
.hero-sub{
  font-size:18px;line-height:1.8;color:var(--w-body);max-width:34em;margin-bottom:30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;}
.hero-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  transform:rotate(-3deg);
  border:1px solid rgba(14,216,176,.45);
  box-shadow:0 24px 48px rgba(0,0,0,.5);
}
.hero-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.hero-card figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:10px 14px;
  font-size:13px;color:var(--w-body);
  background:linear-gradient(180deg,rgba(12,16,24,0),rgba(12,16,24,.88));
}
.hero-tags{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:10px;
  padding-bottom:44px;
}

/* ---------- 区块通用 ---------- */
.section{padding:var(--sec) 0;}
.section--paper{background:var(--paper);}
.section--white{background:var(--card);}
.section--dark{background:var(--ink-900);color:var(--w-strong);}
.section--dark .section-head h2{color:var(--w-strong);}
.section--dark .section-desc{color:var(--w-body);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{font-size:30px;font-weight:700;line-height:1.3;letter-spacing:-.3px;position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand);
}
.section-desc{font-size:15px;line-height:1.8;color:var(--t-body);margin-top:10px;padding-left:16px;max-width:46em;}
.section-head .link-more{flex-shrink:0;padding-bottom:6px;}

/* ---------- 对比表 ---------- */
.table-scroll{
  overflow-x:auto;border-radius:var(--r-lg);border:1px solid var(--line);
  background:#fff;box-shadow:var(--sh-light);
  scrollbar-width:thin;
}
.table-scroll::-webkit-scrollbar{height:6px;}
.table-scroll::-webkit-scrollbar-thumb{background:#CBD2DC;border-radius:6px;}
.compare-table{min-width:760px;font-size:15px;}
.compare-table thead th{
  position:sticky;top:0;z-index:3;
  background:#F0F3F8;
  padding:16px 18px;text-align:left;
  font-size:14px;font-weight:600;color:var(--t-strong);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.compare-table thead th:first-child{position:sticky;left:0;z-index:4;background:#F0F3F8;}
.compare-table thead th.is-featured{
  background:rgba(14,216,176,.14);color:var(--brand-700);
  box-shadow:inset 0 3px 0 var(--brand);
  position:relative;
}
.corner{
  position:absolute;top:-1px;right:12px;
  height:22px;padding:0 10px;border-radius:0 0 8px 8px;
  font-size:11px;font-weight:700;line-height:22px;letter-spacing:.5px;
  background:var(--brand);color:var(--ink-900);
}
.compare-table tbody tr{height:56px;}
.compare-table tbody tr:nth-child(even){background:rgba(16,24,40,.025);}
.compare-table tbody th{
  position:sticky;left:0;z-index:2;background:#fff;
  padding:14px 18px;text-align:left;font-weight:500;font-size:15px;color:var(--t-strong);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
.compare-table tbody tr:nth-child(even) th{background:#FAFBFD;}
.compare-table tbody td{
  padding:14px 18px;border-bottom:1px solid var(--line);font-size:14px;color:var(--t-body);
}
.compare-table tbody td.is-featured{background:rgba(14,216,176,.08);color:var(--t-strong);font-weight:600;}
.compare-table .yes{color:var(--brand-700);font-weight:700;font-size:16px;}
.compare-table .no{color:#CBD2DC;font-weight:700;font-size:16px;}
.compare-table .val{font-variant-numeric:tabular-nums;color:var(--t-strong);font-weight:600;}
.table-note{margin-top:16px;font-size:13px;color:var(--t-mute);}

/* ---------- 等级卡 ---------- */
.level-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.level-card{
  background:var(--ink-700);border:1px solid var(--line-dark);border-radius:var(--r-lg);
  padding:24px;display:flex;flex-direction:column;gap:14px;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.level-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:0 16px 32px rgba(0,0,0,.35);}
.level-badge{
  width:32px;height:32px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:var(--gold);
  background:linear-gradient(135deg,rgba(255,198,92,.22),rgba(255,198,92,.05));
  border:1px solid rgba(255,198,92,.75);
}
.level-name{font-size:18px;font-weight:700;color:var(--w-strong);}
.level-threshold{font-size:13px;color:var(--w-mute);font-variant-numeric:tabular-nums;}
.level-list{display:flex;flex-direction:column;gap:8px;flex:1;}
.level-list li{
  position:relative;padding-left:16px;font-size:14px;line-height:1.7;color:var(--w-body);
}
.level-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand);
}

/* ---------- 内容预览卡 ---------- */
.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.preview-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.preview-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--sh-light-hover);}
.preview-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-700);}
.preview-cover img{width:100%;height:100%;object-fit:cover;transition:transform 240ms ease-out;}
.preview-card:hover .preview-cover img{transform:scale(1.04);}
.preview-cat{position:absolute;top:12px;left:12px;}
.preview-lock{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  background:rgba(12,16,24,.6);color:var(--w-strong);font-size:13px;font-weight:600;
  opacity:1;transition:opacity var(--ease);
}
.preview-card:hover .preview-lock{opacity:.82;}
.preview-lock svg{color:var(--gold);}
.preview-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.preview-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--t-strong);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--ease);
}
.preview-card:hover .preview-title{color:var(--brand-700);}
.preview-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;font-size:13px;color:var(--t-mute);font-variant-numeric:tabular-nums;}

/* ---------- 最新信息 ---------- */
.cms-layout{display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start;}
.cms-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--sh-light-hover);}
.post-card__cover{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--ink-700);}
.post-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform 240ms ease-out;}
.post-card:hover .post-card__cover img{transform:scale(1.04);}
.post-card__cat{position:absolute;top:12px;left:12px;}
.post-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;}
.post-card__title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--t-strong);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--ease);
}
.post-card:hover .post-card__title{color:var(--brand-700);}
.post-card__summary{
  font-size:14px;line-height:1.8;color:var(--t-body);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card__meta{display:flex;align-items:center;gap:10px;margin-top:4px;font-size:13px;color:var(--t-mute);font-variant-numeric:tabular-nums;}
.post-card__meta .dot{color:#CBD2DC;}

.cms-empty{
  grid-column:1 / -1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:64px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
  text-align:center;
}
.cms-empty svg{color:#CBD2DC;}
.cms-empty p{font-size:15px;color:var(--t-body);}

.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-light);
}
.side-card + .side-card{margin-top:24px;}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px;padding-left:12px;position:relative;}
.side-card h3::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:2px;background:var(--brand);}
.side-list{display:flex;flex-direction:column;}
.side-list li + li{border-top:1px solid var(--line);}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;font-size:14px;color:var(--t-body);
  transition:color var(--ease);
}
.side-list a:hover{color:var(--brand-700);}
.side-list span{font-size:12px;color:var(--t-mute);font-variant-numeric:tabular-nums;flex-shrink:0;}

/* ---------- 用户评价 ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.trust-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  display:flex;flex-direction:column;gap:14px;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.trust-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--sh-light-hover);}
.trust-quote{font-size:15px;line-height:1.85;color:var(--t-body);}
.trust-user{display:flex;align-items:center;gap:12px;margin-top:auto;}
.trust-avatar{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--ink-900);
  background:linear-gradient(135deg,var(--brand),#0AA98C);
}
.trust-name{font-size:14px;font-weight:600;color:var(--t-strong);}
.trust-role{font-size:12px;color:var(--t-mute);}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:40px;}
.stat-item{padding:22px;border-radius:var(--r-lg);background:var(--paper);border:1px solid var(--line);text-align:center;}
.stat-num{font-size:28px;font-weight:800;color:var(--brand-700);font-variant-numeric:tabular-nums;letter-spacing:-.5px;}
.stat-label{font-size:13px;color:var(--t-body);margin-top:4px;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px 24px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item[open]{border-color:rgba(14,216,176,.5);box-shadow:var(--sh-light);}
.faq-item summary{
  display:flex;align-items:flex-start;gap:12px;
  padding:20px 22px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--t-strong);line-height:1.6;
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:2px;
  background:transparent;transition:background-color var(--ease);
}
.faq-item[open] summary::before{background:var(--brand);}
.faq-q{padding-left:8px;flex:1;}
.faq-icon{
  flex-shrink:0;width:22px;height:22px;margin-top:3px;position:relative;
  transition:transform 240ms ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--t-mute);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--brand);}
.faq-a{padding:0 22px 22px 42px;font-size:15px;line-height:1.85;color:var(--t-body);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink-900);
  padding:64px 0;
}
.cta-band::before{
  content:"";position:absolute;top:-60px;right:-60px;width:320px;height:320px;
  background:rgba(14,216,176,.10);transform:rotate(45deg);border-radius:48px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.35;pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr 340px;align-items:center;gap:48px;
}
.cta-inner h2{font-size:30px;font-weight:700;line-height:1.3;color:var(--w-strong);margin-bottom:12px;}
.cta-inner p{font-size:16px;line-height:1.8;color:var(--w-body);margin-bottom:26px;max-width:38em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;}
.cta-card{
  border-radius:var(--r-lg);overflow:hidden;transform:rotate(3deg);
  border:1px solid rgba(14,216,176,.4);box-shadow:0 24px 48px rgba(0,0,0,.5);
}
.cta-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line-dark);color:var(--w-body);}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 160px;gap:32px;
  padding:64px 0 48px;
}
.footer-brand .brand-name{color:var(--w-strong);}
.footer-desc{font-size:14px;line-height:1.85;color:var(--w-mute);margin-top:16px;max-width:26em;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--w-strong);margin-bottom:16px;letter-spacing:.3px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--w-mute);transition:color var(--ease);}
.footer-col a:hover{color:var(--brand);}
.footer-qr{display:flex;flex-direction:column;align-items:center;gap:10px;}
.qr-box{
  width:120px;height:120px;border-radius:var(--r-md);
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.05);border:1px dashed rgba(255,255,255,.2);
  color:var(--w-mute);font-size:12px;text-align:center;line-height:1.6;
}
.footer-qr span{font-size:12px;color:var(--w-mute);}
.footer-bottom{
  border-top:1px solid var(--line-dark);padding:20px 0;
  font-size:12px;line-height:1.8;color:#8A94A6;
}
.footer-bottom .container{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;}

/* ---------- 移动端底部 CTA ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:55;height:56px;
  display:none;align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px;background:rgba(12,16,24,.96);
  border-top:1px solid var(--line-dark);
  transform:translateY(100%);transition:transform 240ms ease-out;
}
.sticky-cta.is-visible{transform:translateY(0);}
.sticky-cta span{font-size:13px;color:var(--w-body);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 320ms ease-out,transform 320ms ease-out;}
.reveal.is-in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--sec:72px;}
  .hero-title{font-size:38px;}
  .hero-inner{grid-template-columns:1fr 300px;gap:36px;}
  .level-grid{grid-template-columns:repeat(2,1fr);}
  .cms-layout{grid-template-columns:1fr 280px;gap:24px;}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr 140px;gap:28px;}
  .footer-qr{grid-column:span 1;}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .search-box input{width:110px;}
  .hero-inner{grid-template-columns:1fr;min-height:auto;padding-top:56px;gap:32px;}
  .hero-card{display:none;}
  .hero-title{font-size:34px;max-width:100%;}
  .content-grid{grid-template-columns:repeat(2,1fr);}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .cms-layout{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;}
  .cta-card{display:none;}
}
@media (max-width:767px){
  :root{--sec:48px;}
  .container{padding:0 16px;}
  .search-box,.link-login{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-inner{gap:12px;}
  .brand-name{font-size:16px;}
  .hero{padding-top:8px;}
  .hero-inner{padding-top:40px;padding-bottom:32px;}
  .hero-title{font-size:28px;line-height:1.28;}
  .hero-sub{font-size:16px;}
  .hero-cta{gap:12px;}
  .hero-cta .btn{flex:1;min-width:140px;}
  .hero-tags{padding-bottom:32px;overflow-x:auto;flex-wrap:nowrap;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .section-head h2{font-size:24px;}
  .section-desc{font-size:14px;}
  .cms-grid{grid-template-columns:1fr;gap:16px;}
  .content-grid{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:16px;}
  .level-grid{
    display:flex;overflow-x:auto;gap:16px;padding-bottom:12px;
    scroll-snap-type:x mandatory;
    scrollbar-width:none;
  }
  .level-grid::-webkit-scrollbar{display:none;}
  .level-card{min-width:78vw;scroll-snap-align:start;}
  .faq-grid{grid-template-columns:1fr;gap:14px;}
  .cta-band{padding:48px 0;}
  .cta-inner h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px;}
  .footer-bottom .container{flex-direction:column;gap:6px;}
  .sticky-cta{display:flex;}
  .compare-table tbody th,.compare-table thead th:first-child{box-shadow:2px 0 6px rgba(16,24,40,.06);}
}
@media (max-width:520px){
  .hero-title{font-size:25px;}
  .btn-lg{height:48px;padding:0 22px;font-size:15px;}
  .post-card__body,.preview-body{padding:16px;}
  .section-head h2{font-size:22px;}
}

/* roulang page: article */
:root{
  --ink-900:#0C1018;
  --ink-800:#121826;
  --ink-700:#1B2230;
  --line-dark:#232B3A;
  --paper:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --brand:#0ED8B0;
  --brand-700:#08A98A;
  --brand-100:rgba(14,216,176,.12);
  --accent:#FF4E8E;
  --gold:#FFC65C;
  --t-1:#101828;
  --t-2:#5A6472;
  --t-3:#98A2B3;
  --d-1:#FFFFFF;
  --d-2:rgba(255,255,255,.72);
  --d-3:rgba(255,255,255,.48);
  --r-s:8px;
  --r-m:16px;
  --r-l:20px;
  --r-p:999px;
  --sh-light:0 8px 24px rgba(16,24,40,.06);
  --sh-dark:0 16px 40px rgba(0,0,0,.38);
  --sh-brand:0 0 0 3px rgba(14,216,176,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--t-1);
  background:var(--card);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{border:0;background:none;cursor:pointer;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
time,td,th,.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:none;box-shadow:var(--sh-brand);border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:30px;font-weight:700;line-height:1.3}
.section-head .sub{font-size:15px;color:var(--t-2);margin-top:8px}
.section-head .more{font-size:14px;font-weight:600;color:var(--brand-700)}
.section-head .more:hover{text-decoration:underline;text-underline-offset:3px}

/* Header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(12,16,24,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line-dark)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:28px;height:28px;border-radius:9px;background:var(--brand);color:#0C1018;display:grid;place-items:center;flex:none}
.brand-name{font-size:18px;font-weight:700;letter-spacing:-.2px;color:#fff;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{position:relative;display:inline-block;padding:8px 14px;font-size:15px;color:var(--d-2);border-radius:var(--r-p);transition:color .16s ease-out,transform .16s ease-out,background-color .16s ease-out}
.nav-link:hover{color:var(--brand);transform:translateY(-1px)}
.nav-link.is-active{color:#fff;font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:2px;background:var(--brand)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.search-box{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid var(--line-dark);border-radius:var(--r-p);background:rgba(255,255,255,.04);transition:border-color .18s ease-out,box-shadow .18s ease-out}
.search-box:focus-within{border-color:var(--brand);box-shadow:var(--sh-brand)}
.search-box svg{flex:none;color:var(--d-3)}
.search-box input{width:140px;border:0;background:none;color:#fff;font-size:14px;outline:none}
.search-box input::placeholder{color:var(--d-3)}
.link-login{font-size:14px;color:var(--d-2);transition:color .16s ease-out}
.link-login:hover{color:var(--brand)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-dark);color:#fff;align-items:center;justify-content:center;transition:border-color .16s ease-out,color .16s ease-out}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-p);font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;transition:transform .16s ease-out,background-color .16s ease-out,color .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out}
.btn-primary{background:var(--brand);color:#062018}
.btn-primary:hover{background:#1FE6C0;transform:translateY(-1px);box-shadow:0 10px 24px rgba(14,216,176,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-outline{border-color:var(--line);background:#fff;color:var(--t-1)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-700);transform:translateY(-1px)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

/* Article hero */
.article-hero{position:relative;padding:52px 0 44px;background:var(--ink-900) url(/assets/images/backpic/back-1.webp) center/cover no-repeat;overflow:hidden}
.article-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,16,24,.94),rgba(12,16,24,.60))}
.article-hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:48px 48px;pointer-events:none}
.article-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--d-3);margin-bottom:20px}
.breadcrumb a{color:var(--d-2);transition:color .16s ease-out}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.28)}
.breadcrumb .current{max-width:62ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:36px;line-height:1.35;font-weight:700;color:#fff;max-width:920px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:18px;font-size:13px;color:var(--d-3)}
.meta-cat{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-p);background:var(--brand-100);color:var(--brand);font-size:13px;font-weight:500}
.meta-dot{color:rgba(255,255,255,.24)}

/* Layout */
.article-main{background:var(--paper);padding:56px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.article-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);padding:40px;box-shadow:var(--sh-light);max-width:820px}
.article-body{font-size:16.5px;line-height:1.9;color:#2A3446}
.article-body>*+*{margin-top:20px}
.article-body p{font-size:16.5px;line-height:1.9;color:#2A3446;margin:0 0 20px}
.article-body h2{position:relative;font-size:22px;font-weight:600;line-height:1.5;color:var(--t-1);margin:40px 0 18px;padding-left:14px}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand)}
.article-body h3{font-size:18px;font-weight:600;color:var(--t-1);margin:30px 0 14px}
.article-body ul,.article-body ol{margin:0 0 22px;padding:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px;line-height:1.85}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.article-body ol{counter-reset:li}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:10px;line-height:1.85}
.article-body ol li::before{counter-increment:li;content:counter(li);position:absolute;left:0;top:.35em;width:20px;height:20px;border-radius:50%;border:1px solid var(--brand);color:var(--brand-700);font-size:12px;line-height:18px;text-align:center}
.article-body blockquote{margin:24px 0;padding:18px 22px;background:var(--paper);border-left:3px solid var(--brand);border-radius:0 12px 12px 0;color:var(--t-2);font-size:15.5px}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand)}
.article-body img{border-radius:12px;margin:24px auto;height:auto}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px}
.article-body table th,.article-body table td{border:1px solid var(--line);padding:12px 14px;text-align:left;white-space:nowrap}
.article-body table th{background:var(--paper);font-weight:600}
.article-body code{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px}
.article-body pre{background:var(--ink-900);color:#E6ECF5;padding:18px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:28px;border-top:1px solid var(--line)}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-p);background:var(--brand-100);color:var(--brand-700);font-size:13px;font-weight:500;transition:background-color .16s ease-out,color .16s ease-out}
.tag:hover{background:var(--brand);color:#04231B}
.article-foot{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:56px 20px;text-align:center;color:var(--t-2)}
.empty-state p{font-size:16px;color:var(--t-2)}

/* Aside */
.article-aside{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);padding:22px;box-shadow:var(--sh-light)}
.panel-title{font-size:16px;font-weight:600;color:var(--t-1);margin-bottom:16px}
.related-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);transition:transform .16s ease-out}
.related-item:first-of-type{padding-top:0}
.related-item:last-of-type{border-bottom:0;padding-bottom:0}
.related-item:hover{transform:translateX(3px)}
.related-item img{width:88px;height:60px;border-radius:10px;object-fit:cover;flex:none;background:var(--ink-700)}
.related-item h4{font-size:14px;line-height:1.6;font-weight:600;color:var(--t-1);margin-bottom:6px;transition:color .16s ease-out}
.related-item:hover h4{color:var(--brand-700)}
.related-item time{font-size:12px;color:var(--t-3)}
.panel-links li{margin-bottom:10px}
.panel-links a{font-size:14px;color:var(--t-2);transition:color .16s ease-out}
.panel-links a:hover{color:var(--brand-700)}
.panel-note{font-size:13px;line-height:1.8;color:var(--t-3)}

/* CTA */
.cta-band{position:relative;background:var(--ink-900);color:#fff;padding:76px 0;overflow:hidden}
.cta-band::before{content:"";position:absolute;right:-70px;top:-60px;width:380px;height:380px;transform:rotate(18deg);border-radius:64px;background:linear-gradient(135deg,rgba(14,216,176,.16),rgba(255,78,142,.05))}
.cta-band::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:linear-gradient(90deg,transparent,rgba(14,216,176,.5),transparent)}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:48px}
.cta-copy h2{font-size:30px;font-weight:700;line-height:1.35;margin-bottom:12px}
.cta-copy p{font-size:16px;color:var(--d-2);max-width:640px}
.cta-actions{display:flex;gap:16px;flex:none}

/* Footer */
.site-footer{background:var(--ink-900);color:var(--d-2);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr auto;gap:32px}
.footer-desc{font-size:14px;line-height:1.8;color:var(--d-3);margin-top:14px;max-width:280px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--d-2);transition:color .16s ease-out}
.footer-col a:hover{color:var(--brand)}
.footer-qr{text-align:center}
.qr-box{width:120px;height:120px;border-radius:12px;border:1px dashed var(--line-dark);display:flex;align-items:center;justify-content:center;text-align:center;font-size:13px;line-height:1.6;color:var(--d-3)}
.footer-qr span{display:block;margin-top:10px;font-size:12px;color:var(--d-3)}
.footer-bottom{margin-top:56px;border-top:1px solid var(--line-dark);padding:20px 0}
.footer-bottom .container{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;font-size:12px;line-height:1.8;color:#8A94A6}

/* Drawer */
.drawer{position:fixed;top:0;right:0;z-index:80;width:82vw;max-width:340px;height:100%;padding:24px;background:var(--ink-800);border-left:1px solid var(--line-dark);transform:translateX(100%);transition:transform .24s ease-out;display:flex;flex-direction:column;gap:6px;overflow-y:auto}
.drawer.is-open{transform:none}
.drawer .drawer-title{font-size:13px;color:var(--d-3);margin:8px 0 6px}
.drawer .nav-link{display:block;padding:12px 14px;font-size:15px}
.drawer .nav-link.is-active::after{left:14px;right:auto;width:26px}
.drawer-actions{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.drawer-overlay{position:fixed;inset:0;z-index:70;background:rgba(12,16,24,.6);opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out}
.drawer-overlay.is-open{opacity:1;visibility:visible}

/* Reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease-out,transform .3s ease-out}
.reveal.is-in{opacity:1;transform:none}

@media (max-width:1279px){
  .article-title{font-size:32px}
  .section-head h2{font-size:27px}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .article-layout{grid-template-columns:1fr}
  .article-aside{position:static}
  .article-card{max-width:none;padding:32px}
  .section{padding:64px 0}
  .search-box{display:none}
  .nav-link{padding:8px 10px;font-size:14px}
  .footer-grid{grid-template-columns:1fr 1fr 1fr}
  .footer-qr{text-align:left}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .main-nav{display:none}
  .menu-toggle{display:flex}
  .link-login{display:none}
  .article-hero{padding:34px 0 28px}
  .article-title{font-size:26px}
  .article-main{padding:32px 0 56px}
  .article-card{padding:24px 18px;border-radius:var(--r-m)}
  .article-body,.article-body p{font-size:16px}
  .article-body h2{font-size:20px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px}
  .cta-actions{flex-wrap:wrap}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .section-head h2{font-size:23px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom .container{flex-direction:column}
}
@media (max-width:520px){
  .brand-name{font-size:16px}
  .article-title{font-size:23px}
  .article-meta{gap:8px}
  .footer-grid{grid-template-columns:1fr}
  .cta-copy h2{font-size:23px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --ink-900:#0C1018;
  --ink-800:#121826;
  --ink-700:#1B2230;
  --line-dark:#232B3A;
  --paper:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --brand:#0ED8B0;
  --brand-700:#08A98A;
  --brand-100:rgba(14,216,176,.12);
  --accent:#FF4E8E;
  --gold:#FFC65C;
  --text:#101828;
  --text-2:#5A6472;
  --text-3:#98A2B3;
  --on-dark:#FFFFFF;
  --on-dark-2:rgba(255,255,255,.72);
  --on-dark-3:rgba(255,255,255,.48);
  --r-sm:8px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-light:0 8px 24px rgba(16,24,40,.06);
  --sh-dark:0 16px 40px rgba(0,0,0,.38);
  --focus:0 0 0 3px rgba(14,216,176,.18);
  --gap-section:88px;
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--card);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;padding:0;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:var(--r-sm);}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(12,16,24,.96);
  border-bottom:1px solid var(--line-dark);
  backdrop-filter:blur(8px);
}
.header-inner{
  height:64px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:28px;height:28px;
  display:grid;place-items:center;
  border-radius:8px;
  background:var(--brand);
  color:var(--ink-900);
  box-shadow:0 6px 16px rgba(14,216,176,.28);
}
.brand-name{
  font-size:18px;
  font-weight:700;
  letter-spacing:-.2px;
  color:var(--on-dark);
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 12px;
  font-size:15px;
  font-weight:500;
  color:var(--on-dark-2);
  border-radius:var(--r-sm);
  transition:color .16s ease-out, transform .16s ease-out;
}
.nav-link:hover{color:var(--brand);transform:translateY(-1px);}
.nav-link.is-active{color:var(--on-dark);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:4px;
  height:3px;border-radius:2px;
  background:var(--brand);
}
.header-tools{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:14px;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--ink-800);
  border:1px solid var(--line-dark);
  transition:border-color .16s ease-out, box-shadow .16s ease-out;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(14,216,176,.24);}
.search-box svg{flex-shrink:0;color:var(--on-dark-3);}
.search-box input{
  width:150px;
  border:none;background:transparent;outline:none;
  font-size:14px;color:var(--on-dark);
}
.search-box input::placeholder{color:var(--on-dark-3);}
.tool-link{
  font-size:14px;
  color:var(--on-dark-2);
  transition:color .16s ease-out;
}
.tool-link:hover{color:var(--brand);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform .16s ease-out, box-shadow .16s ease-out, background-color .16s ease-out, color .16s ease-out, border-color .16s ease-out;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--brand);color:var(--ink-900);box-shadow:0 8px 20px rgba(14,216,176,.24);}
.btn-primary:hover{background:#2ee2bd;transform:translateY(-1px);box-shadow:0 12px 26px rgba(14,216,176,.34);}
.btn-ghost{background:transparent;color:var(--on-dark);border-color:rgba(255,255,255,.28);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-ghost-light{background:transparent;color:var(--text);border-color:var(--line);}
.btn-ghost-light:hover{border-color:var(--brand);color:var(--brand-700);transform:translateY(-1px);}
.btn[disabled]{opacity:.4;pointer-events:none;}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-dark);
  color:var(--on-dark);
  align-items:center;
  justify-content:center;
}
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(12,16,24,.6);
  opacity:0;visibility:hidden;
  transition:opacity .2s ease-out, visibility .2s ease-out;
  z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:82vw;max-width:340px;
  background:var(--ink-800);
  border-left:1px solid var(--line-dark);
  padding:24px 20px;
  transform:translateX(100%);
  transition:transform .24s ease-out;
  z-index:100;
  display:flex;flex-direction:column;gap:8px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer .drawer-title{font-size:13px;color:var(--on-dark-3);padding:4px 8px;}
.drawer .nav-link{height:48px;width:100%;color:var(--on-dark-2);}
.drawer .nav-link.is-active{color:var(--brand);}
.drawer .nav-link.is-active::after{display:none;}
.drawer-actions{margin-top:12px;display:flex;flex-direction:column;gap:12px;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  min-height:248px;
  display:flex;
  align-items:flex-end;
  background-color:var(--ink-900);
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg, rgba(12,16,24,.92) 0%, rgba(12,16,24,.62) 58%, rgba(12,16,24,.42) 100%);
}
.page-hero .container{position:relative;padding-top:34px;padding-bottom:34px;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--on-dark-3);
  margin-bottom:14px;
}
.crumbs a{color:var(--on-dark-2);transition:color .16s ease-out;}
.crumbs a:hover{color:var(--brand);}
.crumbs span.current{color:var(--on-dark-3);}
.page-hero h1{
  font-size:34px;
  font-weight:700;
  line-height:1.3;
  color:var(--on-dark);
  max-width:820px;
}
.page-hero .hero-sub{
  margin-top:12px;
  font-size:17px;
  line-height:1.75;
  color:var(--on-dark-2);
  max-width:680px;
}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.pill{
  display:inline-flex;align-items:center;
  height:30px;padding:0 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
  font-size:13px;font-weight:500;
  color:var(--on-dark-2);
}
.pill-brand{background:var(--brand-100);border-color:rgba(14,216,176,.35);color:var(--brand);}

/* ---------- sections ---------- */
.section{padding:var(--gap-section) 0;}
.section.paper{background:var(--paper);}
.section.dark{background:var(--ink-900);color:var(--on-dark);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.section-head h2{
  font-size:30px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.2px;
}
.section-head .sub{
  margin-top:10px;
  font-size:15px;
  color:var(--text-2);
  max-width:640px;
}
.section.dark .section-head .sub{color:var(--on-dark-2);}
.link-more{
  flex-shrink:0;
  font-size:15px;font-weight:600;
  color:var(--brand-700);
  display:inline-flex;align-items:center;gap:6px;
  transition:color .16s ease-out, text-underline-offset .16s ease-out;
}
.link-more:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}

/* ---------- stat strip ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-light);
  margin-top:-46px;
  position:relative;
  z-index:5;
  background-color:var(--card);
}
.stat-cell{
  background:var(--card);
  padding:22px 24px;
}
.stat-cell .stat-num{
  font-size:28px;font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--text);
  letter-spacing:-.5px;
}
.stat-cell .stat-num em{font-size:15px;font-style:normal;font-weight:600;color:var(--text-2);margin-left:4px;}
.stat-cell .stat-label{
  margin-top:6px;
  font-size:13px;
  color:var(--text-3);
  line-height:1.6;
}

/* ---------- filter chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.chip{
  display:inline-flex;align-items:center;
  height:38px;padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--card);
  font-size:14px;font-weight:500;
  color:var(--text-2);
  transition:border-color .16s ease-out, color .16s ease-out, background-color .16s ease-out, transform .16s ease-out;
}
.chip:hover{border-color:var(--brand);color:var(--brand-700);transform:translateY(-1px);}
.chip.is-active{background:var(--ink-900);border-color:var(--ink-900);color:var(--on-dark);}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:0;}
.tl-item{
  display:grid;
  grid-template-columns:104px 1fr;
  gap:24px;
  padding:0 0 22px;
  position:relative;
}
.tl-item::before{
  content:"";
  position:absolute;
  left:103px;top:12px;bottom:-10px;
  width:2px;
  background:var(--line);
}
.tl-item:last-child::before{display:none;}
.tl-time{
  font-size:22px;font-weight:700;
  font-variant-numeric:tabular-nums;
  color:var(--text);
  line-height:1.4;
  padding-top:8px;
  letter-spacing:-.4px;
}
.tl-time span{display:block;font-size:12px;font-weight:500;color:var(--text-3);letter-spacing:0;}
.tl-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:20px 22px;
  box-shadow:var(--sh-light);
  transition:border-color .18s ease-out, transform .18s ease-out, box-shadow .18s ease-out;
}
.tl-card::before{
  content:"";
  position:absolute;
  left:-13px;top:26px;
  width:10px;height:10px;border-radius:50%;
  background:var(--card);
  border:2px solid var(--brand);
}
.tl-card:hover{border-color:var(--brand);transform:translateY(-3px);box-shadow:0 14px 30px rgba(16,24,40,.1);}
.tl-card .tl-top{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-bottom:8px;
}
.tl-card h3{font-size:18px;font-weight:600;}
.tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:6px;
  font-size:12px;font-weight:500;
  background:var(--brand-100);
  color:var(--brand-700);
}
.tag-accent{background:rgba(255,78,142,.12);color:#D63571;}
.tag-gold{background:rgba(255,198,92,.18);color:#96660C;}
.tag-muted{background:#EEF1F5;color:var(--text-2);}
.tl-card p{font-size:14px;color:var(--text-2);line-height:1.8;}
.tl-meta{
  margin-top:14px;padding-top:14px;
  border-top:1px dashed var(--line);
  display:flex;flex-wrap:wrap;gap:8px 20px;
  font-size:13px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.tl-meta b{color:var(--text);font-weight:600;}
.tl-empty{
  display:none;
  text-align:center;
  padding:52px 20px;
  border:1px dashed var(--line);
  border-radius:var(--r-md);
  background:var(--card);
}
.tl-empty.is-show{display:block;}
.tl-empty svg{color:var(--text-3);margin:0 auto 14px;}
.tl-empty p{color:var(--text-2);font-size:15px;margin-bottom:18px;}

/* ---------- schedule cards ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.s-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .18s ease-out, transform .18s ease-out, box-shadow .18s ease-out;
}
.s-card:hover{border-color:var(--brand);transform:translateY(-4px);box-shadow:0 16px 34px rgba(16,24,40,.12);}
.s-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-700);}
.s-cover img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out;}
.s-card:hover .s-cover img{transform:scale(1.04);}
.s-cover .s-flag{
  position:absolute;left:12px;top:12px;
  display:inline-flex;align-items:center;
  height:26px;padding:0 10px;
  border-radius:6px;
  font-size:12px;font-weight:600;
  background:rgba(12,16,24,.72);
  color:var(--on-dark);
  backdrop-filter:blur(4px);
}
.s-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.s-body h3{font-size:17px;font-weight:600;line-height:1.6;}
.s-body .s-desc{font-size:14px;color:var(--text-2);line-height:1.8;}
.s-foot{
  margin-top:auto;padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.s-foot .go{font-weight:600;color:var(--brand-700);}
.s-card:hover .s-foot .go{color:var(--brand);}

/* ---------- notice panel ---------- */
.notice{
  display:flex;gap:16px;
  background:var(--brand-100);
  border-left:3px solid var(--brand);
  border-radius:12px;
  padding:18px 20px;
  margin-bottom:28px;
}
.notice svg{flex-shrink:0;color:var(--brand-700);margin-top:4px;}
.notice p{font-size:14px;color:var(--text-2);line-height:1.85;}
.notice strong{color:var(--text);}

/* ---------- form ---------- */
.form-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:var(--sh-light);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:14px;font-weight:600;color:var(--text);}
.field .hint{font-size:12px;color:var(--text-3);}
.field input[type="text"],
.field input[type="email"],
.field select,
.field textarea{
  height:44px;
  padding:0 14px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#FBFCFD;
  font-size:15px;
  transition:border-color .16s ease-out, box-shadow .16s ease-out, background-color .16s ease-out;
}
.field textarea{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  background:var(--card);
  box-shadow:var(--focus);
}
.field.is-error input,.field.is-error select{border-color:var(--accent);}
.field .err-text{display:none;font-size:12px;color:var(--accent);}
.field.is-error .err-text{display:block;}
.radio-row{display:flex;flex-wrap:wrap;gap:12px;}
.radio-chip{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 16px;
  border-radius:10px;
  border:1px solid var(--line);
  background:#FBFCFD;
  font-size:14px;color:var(--text-2);
  cursor:pointer;
  transition:border-color .16s ease-out, color .16s ease-out, background-color .16s ease-out;
}
.radio-chip:hover{border-color:var(--brand);color:var(--brand-700);}
.radio-chip input{accent-color:var(--brand-700);}
.form-actions{
  margin-top:26px;
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
}
.form-msg{
  display:none;
  font-size:14px;
  color:var(--brand-700);
}
.form-msg.is-show{display:block;}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:16px 24px;align-items:start;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .18s ease-out, box-shadow .18s ease-out;
}
.faq-item:hover{border-color:#CFE9E2;}
.faq-item.is-open{border-color:var(--brand);box-shadow:var(--sh-light);}
.faq-q{
  width:100%;
  display:flex;align-items:flex-start;gap:14px;
  padding:20px 22px;
  text-align:left;
  min-height:44px;
}
.faq-q .bar{
  flex-shrink:0;
  width:3px;height:18px;border-radius:2px;
  background:var(--line);
  margin-top:5px;
  transition:background-color .18s ease-out;
}
.faq-item.is-open .faq-q .bar{background:var(--brand);}
.faq-q h3{font-size:16px;font-weight:600;line-height:1.7;flex:1;}
.faq-q .plus{
  flex-shrink:0;
  width:22px;height:22px;
  position:relative;
  margin-top:3px;
  transition:transform .24s ease-out;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--text-3);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:14px;height:2px;}
.faq-q .plus::after{width:2px;height:14px;}
.faq-item.is-open .plus{transform:rotate(45deg);}
.faq-item.is-open .plus::before,.faq-item.is-open .plus::after{background:var(--brand-700);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s ease-out;
}
.faq-a p{
  padding:0 22px 20px 39px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- cta ---------- */
.cta-band{
  position:relative;
  background:var(--ink-900);
  overflow:hidden;
  padding:64px 0;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:-60px;top:-40px;
  width:340px;height:340px;
  background:linear-gradient(135deg, rgba(14,216,176,.22), rgba(14,216,176,0) 68%);
  transform:rotate(45deg);
}
.cta-band::after{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px, transparent 1px);
  background-size:22px 22px;
  opacity:.7;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.35fr .65fr;
  gap:40px;
  align-items:center;
}
.cta-inner h2{font-size:28px;font-weight:700;color:var(--on-dark);line-height:1.35;}
.cta-inner p{margin-top:12px;font-size:16px;color:var(--on-dark-2);max-width:520px;}
.cta-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:16px;}
.cta-cover{
  border-radius:var(--r-md);
  border:1px solid rgba(14,216,176,.4);
  overflow:hidden;
  transform:rotate(-3deg);
  box-shadow:var(--sh-dark);
}
.cta-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-900);color:var(--on-dark);padding-top:64px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr .9fr;
  gap:32px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:14px;}
.footer-desc{font-size:14px;line-height:1.8;color:var(--on-dark-3);max-width:260px;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--on-dark);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--on-dark-3);transition:color .16s ease-out;}
.footer-col a:hover{color:var(--brand);}
.footer-qr{display:flex;flex-direction:column;align-items:flex-start;gap:10px;}
.qr-box{
  width:120px;height:120px;
  display:grid;place-items:center;
  border:1px dashed var(--line-dark);
  border-radius:12px;
  background:var(--ink-800);
  font-size:13px;color:var(--on-dark-3);text-align:center;line-height:1.6;
}
.footer-qr span{font-size:12px;color:var(--on-dark-3);}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding:20px 0;
}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;
  font-size:12px;color:#8A94A6;line-height:1.8;
}

/* ---------- mobile cta bar ---------- */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;
  height:56px;
  display:none;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:0 16px;
  background:rgba(12,16,24,.96);
  border-top:1px solid var(--line-dark);
  transform:translateY(100%);
  transition:transform .24s ease-out;
  z-index:70;
}
.mobile-cta.is-show{transform:translateY(0);}
.mobile-cta span{font-size:13px;color:var(--on-dark-2);}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--text-2);
  transition:color .16s ease-out;
}
.to-top:hover{color:var(--brand-700);}
.back-bar{padding:0 0 var(--gap-section);}
.back-bar .container{display:flex;justify-content:center;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .24s ease-out, transform .24s ease-out;}
.reveal.in{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- breakpoints ---------- */
@media (max-width:1279px){
  :root{--gap-section:76px;}
  .page-hero h1{font-size:31px;}
  .section-head h2{font-size:27px;}
  .stat-cell{padding:20px;}
  .stat-cell .stat-num{font-size:24px;}
}
@media (max-width:1023px){
  :root{--gap-section:64px;}
  .main-nav .nav-link:nth-child(n+5){display:none;}
  .search-box input{width:110px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:28px;}
  .footer-qr{grid-column:span 3;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .cta-cover{max-width:420px;transform:rotate(-2deg);}
}
@media (max-width:767px){
  :root{--gap-section:48px;}
  .container{padding:0 16px;}
  .main-nav{display:none;}
  .search-box{display:none;}
  .tool-link{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-tools{gap:10px;}
  .page-hero{min-height:220px;}
  .page-hero h1{font-size:25px;}
  .page-hero .hero-sub{font-size:15px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px;}
  .section-head h2{font-size:23px;}
  .stat-strip{grid-template-columns:1fr 1fr;margin-top:-30px;}
  .stat-cell .stat-num{font-size:21px;}
  .tl-item{grid-template-columns:1fr;gap:10px;padding-bottom:20px;}
  .tl-item::before{display:none;}
  .tl-time{padding-top:0;font-size:19px;display:flex;align-items:baseline;gap:10px;}
  .tl-time span{display:inline;font-size:12px;}
  .tl-card::before{display:none;}
  .card-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .form-panel{padding:24px 18px;}
  .faq-wrap{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-qr{grid-column:span 2;}
  .footer-bottom .container{flex-direction:column;}
  .mobile-cta{display:flex;}
  .cta-band{padding:52px 0;}
  .cta-inner h2{font-size:23px;}
  body{padding-bottom:56px;}
}
@media (max-width:520px){
  .page-hero h1{font-size:22px;}
  .pill{padding:0 11px;font-size:12px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-cell{display:flex;align-items:baseline;gap:10px;padding:16px 18px;}
  .stat-cell .stat-label{margin-top:0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-qr{grid-column:span 1;}
  .footer-desc{max-width:none;}
  .btn{width:100%;padding:0 16px;}
  .cta-actions .btn{width:100%;}
  .form-actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --ink-900:#0C1018;
  --ink-800:#121826;
  --ink-700:#1B2230;
  --line-dark:#232B3A;
  --paper:#F5F7FA;
  --white:#FFFFFF;
  --line:#E3E8EF;
  --brand:#0ED8B0;
  --brand-700:#08A98A;
  --brand-100:rgba(14,216,176,.12);
  --accent:#FF4E8E;
  --gold:#FFC65C;
  --txt-1:#101828;
  --txt-2:#5A6472;
  --txt-3:#98A2B3;
  --dk-1:#FFFFFF;
  --dk-2:rgba(255,255,255,.72);
  --dk-3:rgba(255,255,255,.48);
  --r-sm:8px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-light:0 8px 24px rgba(16,24,40,.06);
  --sh-dark:0 16px 40px rgba(0,0,0,.38);
  --focus:0 0 0 3px rgba(14,216,176,.18);
  --dur:200ms;
  --ease:cubic-bezier(.22,.8,.28,1);
  --sec:88px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--txt-1);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
table{border-collapse:collapse;width:100%;}
svg{display:block;}
::selection{background:var(--brand);color:var(--ink-900);}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  letter-spacing:.2px;
  transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--brand);
  color:var(--ink-900);
  box-shadow:0 6px 18px rgba(14,216,176,.28);
}
.btn-primary:hover{
  background:#22e5bd;
  transform:translateY(-1px);
  box-shadow:0 12px 26px rgba(14,216,176,.36);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--dk-1);
  border:1px solid rgba(255,255,255,.28);
}
.btn-ghost:hover{
  border-color:var(--brand);
  color:var(--brand);
  transform:translateY(-1px);
}
.btn-ghost-dark{
  background:transparent;
  color:var(--txt-1);
  border:1px solid var(--line);
}
.btn-ghost-dark:hover{
  border-color:var(--brand);
  color:var(--brand-700);
  transform:translateY(-1px);
}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-700);
  transition:color var(--dur) var(--ease);
}
.btn-text:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}

/* ---------- 徽章 / 胶囊 ---------- */
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:500;
  line-height:1.5;
  background:var(--brand-100);
  color:var(--brand-700);
  white-space:nowrap;
}
.pill-dark{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  color:var(--dk-2);
}
.pill-gold{
  background:transparent;
  border:1px solid rgba(255,198,92,.55);
  color:var(--gold);
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(12,16,24,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-dark);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:28px;height:28px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:9px;
  background:linear-gradient(135deg,var(--brand),#07b394);
  color:var(--ink-900);
}
.brand-name{
  font-size:18px;
  font-weight:700;
  letter-spacing:-.2px;
  color:var(--dk-1);
}
.main-nav{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:12px;
}
.nav-link{
  position:relative;
  padding:20px 0;
  font-size:15px;
  font-weight:500;
  color:var(--dk-2);
  transition:color 160ms var(--ease),transform 160ms var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:12px;
  height:3px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform 160ms var(--ease);
}
.nav-link:hover{color:var(--brand);transform:translateY(-1px);}
.nav-link.is-active{color:var(--dk-1);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:auto;
}
.search-box{
  position:relative;
  display:flex;
  align-items:center;
  height:40px;
  width:212px;
  padding:0 14px 0 38px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.search-box:focus-within{
  border-color:var(--brand);
  box-shadow:var(--focus);
  background:rgba(255,255,255,.08);
}
.search-box .search-icon{
  position:absolute;
  left:13px;
  top:50%;
  transform:translateY(-50%);
  color:var(--dk-3);
}
.search-box input{
  width:100%;
  border:0;
  background:transparent;
  font-size:14px;
  color:var(--dk-1);
  outline:none;
}
.search-box input::placeholder{color:var(--dk-3);}
.link-login{
  font-size:14px;
  color:var(--dk-2);
  transition:color var(--dur) var(--ease);
  padding:8px 2px;
}
.link-login:hover{color:var(--brand);}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.16);
  color:var(--dk-1);
}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(12,16,24,.6);
  z-index:80;
  opacity:0;
  pointer-events:none;
  transition:opacity 200ms var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;
  top:0;right:0;
  width:82vw;
  max-width:340px;
  height:100%;
  background:var(--ink-800);
  border-left:1px solid var(--line-dark);
  z-index:90;
  padding:22px 20px 32px;
  transform:translateX(102%);
  transition:transform 240ms var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:22px;
}
.drawer-title{font-size:15px;font-weight:600;color:var(--dk-1);}
.drawer-close{
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.16);
  color:var(--dk-1);
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.drawer-nav a{
  padding:13px 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--dk-2);
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(255,255,255,.06);color:var(--brand);}
.drawer-actions{display:flex;flex-direction:column;gap:12px;}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;
  min-height:250px;
  display:flex;
  align-items:center;
  background-color:var(--ink-900);
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(12,16,24,.92) 0%,rgba(12,16,24,.78) 45%,rgba(12,16,24,.5) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:34px;padding-bottom:38px;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--dk-3);
  margin-bottom:16px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--dk-2);transition:color var(--dur) var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--dk-3);}
.page-hero h1{
  font-size:34px;
  font-weight:700;
  line-height:1.35;
  color:var(--dk-1);
  max-width:760px;
  letter-spacing:-.3px;
}
.page-hero .hero-sub{
  margin-top:12px;
  font-size:17px;
  color:var(--dk-2);
  max-width:640px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0;}
.section-paper{background:var(--paper);}
.section-dark{background:var(--ink-900);color:var(--dk-1);}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head h2{
  font-size:30px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.3px;
}
.section-head p{
  margin-top:12px;
  font-size:16px;
  color:var(--txt-2);
}
.section-dark .section-head p{color:var(--dk-2);}
.section-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.section-head-row .section-head{margin-bottom:0;}

/* ---------- 特性卡 ---------- */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.feature-card{
  position:relative;
  background:var(--ink-800);
  border:1px solid var(--line-dark);
  border-radius:var(--r-card);
  padding:26px 24px;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.feature-card:hover{
  transform:translateY(-4px);
  border-color:var(--brand);
  box-shadow:0 16px 32px rgba(0,0,0,.35);
}
.feature-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  border-radius:50%;
  border:1px solid var(--brand);
  color:var(--brand);
  font-size:14px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.feature-card h3{
  font-size:18px;
  font-weight:600;
  color:var(--dk-1);
  margin-bottom:10px;
}
.feature-card p{
  font-size:14.5px;
  line-height:1.85;
  color:var(--dk-2);
}

/* ---------- 时间线 ---------- */
.timeline{
  position:relative;
  padding-left:26px;
  max-width:880px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:5px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(14,216,176,.12));
}
.timeline-item{
  position:relative;
  padding:0 0 34px 22px;
}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";
  position:absolute;
  left:-26px;top:8px;
  width:12px;height:12px;
  border-radius:50%;
  background:var(--paper);
  border:2px solid var(--brand);
}
.timeline-time{
  font-size:13px;
  font-weight:600;
  color:var(--brand-700);
  font-variant-numeric:tabular-nums;
  letter-spacing:.3px;
}
.timeline-item h3{
  margin-top:6px;
  font-size:18px;
  font-weight:600;
  color:var(--txt-1);
}
.timeline-item p{
  margin-top:8px;
  font-size:15px;
  color:var(--txt-2);
  line-height:1.85;
  max-width:720px;
}

/* ---------- 表格 ---------- */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--white);
  box-shadow:var(--sh-light);
  scrollbar-width:thin;
}
.table-wrap::-webkit-scrollbar{height:6px;}
.table-wrap::-webkit-scrollbar-thumb{background:#CDD5E0;border-radius:6px;}
table.compare{
  min-width:720px;
  font-size:15px;
}
table.compare th,
table.compare td{
  padding:16px 20px;
  text-align:left;
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
table.compare thead th{
  position:sticky;
  top:0;
  background:#EEF2F7;
  font-size:14px;
  font-weight:600;
  color:var(--txt-1);
  z-index:3;
}
table.compare tbody tr:nth-child(even){background:rgba(16,24,40,.02);}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td:first-child,
table.compare th:first-child{
  font-weight:600;
  color:var(--txt-1);
  background:var(--white);
}
table.compare tbody tr:nth-child(even) td:first-child{background:#FBFCFE;}
.mark-yes{color:var(--brand-700);font-weight:600;}
.mark-no{color:#CBD2DC;font-weight:600;}
.mark-num{font-variant-numeric:tabular-nums;font-weight:600;}

/* ---------- 速览清单卡 ---------- */
.preview-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.preview-card{
  display:flex;
  flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.preview-card:hover{
  transform:translateY(-4px);
  border-color:var(--brand);
  box-shadow:0 14px 30px rgba(16,24,40,.1);
}
.preview-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--ink-700);
}
.preview-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 320ms var(--ease);
}
.preview-card:hover .preview-media img{transform:scale(1.04);}
.preview-media .pill{
  position:absolute;
  top:12px;left:12px;
  background:rgba(12,16,24,.78);
  color:var(--brand);
  backdrop-filter:blur(6px);
}
.preview-body{
  padding:20px 22px 22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.preview-body h3{
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  transition:color var(--dur) var(--ease);
}
.preview-card:hover .preview-body h3{color:var(--brand-700);}
.preview-body p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--txt-2);
}
.preview-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--txt-3);
  font-variant-numeric:tabular-nums;
  padding-top:6px;
}

/* ---------- 流程步骤 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.step-card{
  position:relative;
  display:flex;
  gap:18px;
  padding:26px 24px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-light);
  transition:transform 220ms var(--ease),border-color 220ms var(--ease);
}
.step-card:hover{transform:translateY(-4px);border-color:var(--brand);}
.step-index{
  flex:0 0 40px;
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--brand);
  color:var(--brand-700);
  font-size:15px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.step-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step-card p{font-size:14.5px;color:var(--txt-2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:18px 24px;
}
.faq-item{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.faq-item:hover{border-color:#CFE9E2;}
.faq-item.is-open{border-color:var(--brand);box-shadow:var(--sh-light);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 22px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--txt-1);
  position:relative;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:22px;bottom:22px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--brand);
  opacity:0;
  transition:opacity var(--dur) var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-icon{
  flex:0 0 22px;
  width:22px;height:22px;
  position:relative;
  transition:transform 240ms var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand-700);
  border-radius:2px;
}
.faq-icon::before{left:10px;top:2px;width:2px;height:18px;}
.faq-icon::after{left:2px;top:10px;width:18px;height:2px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 240ms ease-out;
}
.faq-a-inner{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--txt-2);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--ink-900);
  padding:64px 0;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.7;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-90px;top:-60px;
  width:320px;height:320px;
  background:rgba(14,216,176,.09);
  transform:rotate(45deg);
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-copy{max-width:620px;}
.cta-copy h2{
  font-size:28px;
  font-weight:700;
  color:var(--dk-1);
  line-height:1.35;
}
.cta-copy p{
  margin-top:12px;
  font-size:16px;
  color:var(--dk-2);
}
.cta-actions{display:flex;gap:16px;flex-wrap:wrap;}

/* ---------- 返回顶部 ---------- */
.back-top-wrap{
  padding:32px 0 0;
  display:flex;
  justify-content:center;
  background:var(--ink-900);
}
.back-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.2);
  color:var(--dk-2);
  font-size:14px;
  font-weight:600;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.back-top:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}

/* ---------- 移动端底部 CTA ---------- */
.mobile-cta{
  position:fixed;
  left:0;right:0;bottom:0;
  height:56px;
  z-index:70;
  display:none;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:0 16px;
  background:rgba(12,16,24,.96);
  border-top:1px solid var(--line-dark);
  transform:translateY(100%);
  transition:transform 240ms var(--ease);
}
.mobile-cta.is-visible{transform:translateY(0);}
.mobile-cta span{font-size:13px;color:var(--dk-2);}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink-900);
  color:var(--dk-2);
  border-top:1px solid var(--line-dark);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr .9fr;
  gap:32px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:var(--dk-3);
  max-width:290px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--dk-1);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  font-size:14px;
  color:var(--dk-3);
  transition:color var(--dur) var(--ease);
}
.footer-col a:hover{color:var(--brand);}
.footer-qr{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:10px;
}
.qr-box{
  width:120px;height:120px;
  border-radius:14px;
  border:1px dashed rgba(255,255,255,.22);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  font-size:13px;
  line-height:1.6;
  color:var(--dk-3);
  background:rgba(255,255,255,.03);
}
.footer-qr span{font-size:12px;color:var(--dk-3);}
.footer-bottom{
  border-top:1px solid var(--line-dark);
  padding:20px 0;
}
.footer-bottom .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom span{
  font-size:12px;
  line-height:1.8;
  color:#8A94A6;
}

/* ---------- 进入动画 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity 240ms var(--ease),transform 240ms var(--ease);
}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-hero h1{font-size:30px;}
  .section-head h2{font-size:27px;}
  .main-nav{gap:20px;}
  .search-box{width:180px;}
}

@media (max-width:1023px){
  :root{--sec:64px;}
  .main-nav{gap:16px;}
  .nav-link{font-size:14px;}
  .search-box{width:150px;}
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .preview-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:28px;}
  .footer-qr{grid-column:span 3;}
}

@media (max-width:767px){
  :root{--sec:48px;}
  .container{padding:0 16px;}
  .main-nav,.search-box,.link-login{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions{gap:10px;}
  .header-actions .btn-sm{height:38px;padding:0 16px;font-size:13px;}
  .page-hero{min-height:220px;}
  .page-hero h1{font-size:24px;}
  .page-hero .hero-sub{font-size:15px;}
  .section-head h2{font-size:23px;}
  .section-head p{font-size:15px;}
  .feature-grid{grid-template-columns:1fr;}
  .preview-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .feature-card{padding:22px 20px;}
  .cta-copy h2{font-size:23px;}
  .cta-band{padding:48px 0 72px;}
  .mobile-cta{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding-bottom:32px;}
  .footer-qr{grid-column:span 2;}
  .footer-bottom .container{flex-direction:column;align-items:flex-start;}
  .timeline{padding-left:20px;}
  .timeline-item{padding-left:18px;}
  .timeline-item::before{left:-20px;}
}

@media (max-width:520px){
  .page-hero h1{font-size:21px;}
  .brand-name{font-size:16px;}
  .header-actions .btn-sm{padding:0 14px;}
  .preview-body{padding:16px 18px 18px;}
  .step-card{padding:20px 18px;gap:14px;}
  .btn{height:46px;padding:0 20px;font-size:14px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-qr{grid-column:span 1;}
}

/* roulang page: category3 */
:root{
  --ink-900:#0C1018;
  --ink-800:#121826;
  --ink-700:#1B2230;
  --line-dark:#232B3A;
  --paper:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --brand:#0ED8B0;
  --brand-700:#08A98A;
  --brand-100:rgba(14,216,176,.12);
  --accent:#FF4E8E;
  --gold:#FFC65C;
  --t-1:#101828;
  --t-2:#5A6472;
  --t-3:#98A2B3;
  --w-1:#FFFFFF;
  --w-2:rgba(255,255,255,.72);
  --w-3:rgba(255,255,255,.48);
  --r-sm:8px;
  --r-md:16px;
  --r-lg:20px;
  --r-full:999px;
  --sh-light:0 8px 24px rgba(16,24,40,.06);
  --sh-hover:0 16px 32px rgba(16,24,40,.10);
  --sh-dark:0 16px 40px rgba(0,0,0,.38);
  --ring:0 0 0 3px rgba(14,216,176,.18);
  --container:1200px;
  --t-fast:160ms ease-out;
  --t-base:240ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--t-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color var(--t-fast),border-color var(--t-fast),background-color var(--t-fast);}
button{font-family:inherit;cursor:pointer;}
input,button,textarea{font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:var(--r-sm);}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(12,16,24,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-dark);
}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand);color:var(--ink-900);
  box-shadow:0 6px 16px rgba(14,216,176,.28);
}
.brand-name{font-size:18px;font-weight:700;letter-spacing:-.2px;color:var(--w-1);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;
  padding:0 13px;font-size:15px;font-weight:500;color:var(--w-2);border-radius:var(--r-sm);
}
.nav-link:hover{color:var(--brand);transform:translateY(-1px);}
.nav-link.is-active{color:var(--w-1);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:6px;height:3px;
  border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{
  display:flex;align-items:center;gap:6px;height:40px;width:196px;
  padding:0 6px 0 14px;border-radius:var(--r-full);
  background:var(--ink-700);border:1px solid var(--line-dark);
  transition:border-color var(--t-fast),box-shadow var(--t-fast);
}
.search-box:focus-within{border-color:var(--brand);box-shadow:var(--ring);}
.search-box input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--w-1);
}
.search-box input::placeholder{color:var(--w-3);}
.search-box button{
  width:30px;height:30px;border:0;border-radius:50%;
  background:transparent;color:var(--w-2);
  display:inline-flex;align-items:center;justify-content:center;
}
.search-box button:hover{color:var(--brand);background:rgba(255,255,255,.06);}
.text-link{font-size:14px;color:var(--w-2);padding:0 2px;}
.text-link:hover{color:var(--brand);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:0;border-radius:var(--r-full);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform var(--t-fast),box-shadow var(--t-fast),background-color var(--t-fast),color var(--t-fast),border-color var(--t-fast);
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--brand);color:var(--ink-900);box-shadow:0 8px 20px rgba(14,216,176,.22);}
.btn-primary:hover{background:#2ee5c0;transform:translateY(-1px);box-shadow:0 14px 26px rgba(14,216,176,.30);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--w-1);border:1px solid rgba(255,255,255,.28);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.btn-outline{background:transparent;color:var(--t-1);border:1px solid var(--line);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-700);transform:translateY(-1px);}
.btn:disabled{opacity:.4;pointer-events:none;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--ink-700);border:1px solid var(--line-dark);color:var(--w-1);
  align-items:center;justify-content:center;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(12,16,24,.6);
  opacity:0;visibility:hidden;transition:opacity var(--t-base),visibility var(--t-base);z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82vw;max-width:340px;
  background:var(--ink-800);border-left:1px solid var(--line-dark);
  transform:translateX(105%);transition:transform var(--t-base);
  z-index:80;padding:20px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;background:var(--ink-700);
  border:1px solid var(--line-dark);color:var(--w-1);
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:12px;
  font-size:16px;color:var(--w-2);border:1px solid transparent;
}
.drawer-link:hover{color:var(--brand);background:var(--ink-700);}
.drawer-link.is-active{color:var(--brand);background:var(--brand-100);border-color:rgba(14,216,176,.32);font-weight:600;}
.drawer-foot{margin-top:auto;display:grid;gap:12px;padding-top:20px;}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;isolation:isolate;overflow:hidden;
  background:var(--ink-900);
  padding:52px 0 44px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.52;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(90deg,rgba(12,16,24,.94) 0%,rgba(12,16,24,.78) 46%,rgba(12,16,24,.44) 100%);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--w-3);margin-bottom:20px;}
.breadcrumb a{color:var(--w-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:rgba(255,255,255,.28);}
.breadcrumb .current{color:var(--w-3);}
.page-hero h1{
  font-size:34px;font-weight:700;line-height:1.35;color:var(--w-1);
  max-width:760px;letter-spacing:-.2px;
}
.page-hero .lede{
  margin-top:14px;max-width:640px;font-size:16px;line-height:1.8;color:var(--w-2);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.pill{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-full);font-size:13px;font-weight:500;
  border:1px solid rgba(255,255,255,.16);color:var(--w-2);background:rgba(255,255,255,.04);
}
.pill-brand{background:var(--brand-100);border-color:rgba(14,216,176,.32);color:var(--brand);}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0;}
.section-tight{padding:0 0 72px;}
.section-head{margin-bottom:32px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--brand-700);
  text-transform:uppercase;margin-bottom:10px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--brand);}
.section h2{font-size:29px;font-weight:700;line-height:1.3;letter-spacing:-.2px;}
.section-desc{margin-top:12px;font-size:15px;color:var(--t-2);line-height:1.85;}

/* ---------- 锚点目录条 ---------- */
.toc-bar{
  position:sticky;top:64px;z-index:40;
  background:var(--card);border-bottom:1px solid var(--line);
  box-shadow:0 6px 18px rgba(16,24,40,.04);
}
.toc-track{
  display:flex;align-items:center;gap:10px;overflow-x:auto;padding:12px 0;
  scrollbar-width:thin;
}
.toc-track::-webkit-scrollbar{height:6px;}
.toc-track::-webkit-scrollbar-thumb{background:#CBD2DC;border-radius:999px;}
.toc-link{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 16px;
  border-radius:var(--r-full);border:1px solid var(--line);background:var(--card);
  font-size:14px;font-weight:500;color:var(--t-2);white-space:nowrap;
}
.toc-link:hover{border-color:var(--brand);color:var(--brand-700);transform:translateY(-1px);}
.toc-link.is-active{background:var(--brand-100);border-color:rgba(14,216,176,.36);color:var(--brand-700);font-weight:600;}

/* ---------- 速览数据条 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px;}
.quick-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 24px;box-shadow:var(--sh-light);
  transition:transform var(--t-fast),border-color var(--t-fast),box-shadow var(--t-fast);
}
.quick-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--sh-hover);}
.quick-card .k{font-size:13px;color:var(--t-3);letter-spacing:.04em;}
.quick-card .v{font-size:26px;font-weight:700;margin-top:6px;letter-spacing:-.4px;}
.quick-card .v em{font-style:normal;font-size:14px;font-weight:600;color:var(--t-2);margin-left:4px;}
.quick-card p{margin-top:8px;font-size:14px;color:var(--t-2);line-height:1.75;}

/* ---------- 分步骤卡 ---------- */
.steps{display:grid;gap:22px;}
.step{
  display:grid;grid-template-columns:56px 1fr auto;gap:22px;align-items:start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 28px;box-shadow:var(--sh-light);
  transition:transform var(--t-fast),border-color var(--t-fast),box-shadow var(--t-fast);
}
.step:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--sh-hover);}
.step-no{
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:2px solid var(--brand);color:var(--brand-700);
  font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;
  background:var(--brand-100);
}
.step-body h3{font-size:20px;font-weight:600;line-height:1.45;}
.step-body > p{margin-top:10px;font-size:15px;color:var(--t-2);line-height:1.85;}
.step-list{margin-top:14px;display:grid;gap:8px;}
.step-list li{
  position:relative;padding-left:18px;font-size:14.5px;color:var(--t-2);line-height:1.8;
}
.step-list li::before{
  content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;
  border-radius:50%;background:var(--brand);
}
.step-meta{
  display:flex;flex-direction:column;align-items:flex-end;gap:10px;min-width:112px;
}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-sm);
  font-size:12.5px;font-weight:600;
  background:var(--brand-100);color:var(--brand-700);
}
.badge-gold{background:rgba(255,198,92,.16);border:1px solid rgba(255,198,92,.5);color:#8A5B00;}
.step-meta span{font-size:13px;color:var(--t-3);font-variant-numeric:tabular-nums;}

/* ---------- 提示框 ---------- */
.tips{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:8px;}
.tip{
  background:var(--brand-100);border-left:3px solid var(--brand);
  border-radius:var(--r-sm);padding:20px 22px;
}
.tip h4{font-size:17px;font-weight:600;margin-bottom:8px;color:#0A6B59;}
.tip p{font-size:14.5px;color:#3F4C57;line-height:1.85;}
.tip-warn{background:rgba(255,78,142,.08);border-left-color:var(--accent);}
.tip-warn h4{color:#A62E5E;}
.tip-warn p{color:#4A3A42;}

/* ---------- 阶段对照表 ---------- */
.table-scroll{
  overflow-x:auto;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-light);
}
.table-scroll::-webkit-scrollbar{height:6px;}
.table-scroll::-webkit-scrollbar-thumb{background:#CBD2DC;border-radius:999px;}
table.stage{min-width:760px;font-size:15px;}
table.stage thead th{
  position:sticky;top:0;z-index:2;background:#EEF2F7;
  text-align:left;font-size:14px;font-weight:600;color:var(--t-2);
  padding:16px 22px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.stage td{
  padding:16px 22px;border-bottom:1px solid var(--line);color:var(--t-2);
  line-height:1.75;vertical-align:top;
}
table.stage tbody tr:nth-child(even){background:rgba(16,24,40,.02);}
table.stage tbody tr:last-child td{border-bottom:0;}
table.stage td:first-child,table.stage th:first-child{
  position:sticky;left:0;background:#FFFFFF;font-weight:600;color:var(--t-1);
  border-right:1px solid var(--line);white-space:nowrap;
}
table.stage tbody tr:nth-child(even) td:first-child{background:#FAFBFD;}
.tick{color:var(--brand-700);font-weight:700;}
.cross{color:#CBD2DC;font-weight:700;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;align-items:start;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color var(--t-fast),box-shadow var(--t-fast);
}
.faq-item:hover{border-color:rgba(14,216,176,.5);}
.faq-item.is-open{border-color:var(--brand);box-shadow:var(--sh-light);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--t-1);line-height:1.6;
}
.faq-q .ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-100);color:var(--brand-700);
  font-size:17px;line-height:1;transition:transform var(--t-base);
}
.faq-item.is-open .faq-q .ico{transform:rotate(45deg);}
.faq-q:hover{color:var(--brand-700);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height var(--t-base);
}
.faq-a p{
  padding:0 20px 20px;font-size:15px;color:var(--t-2);line-height:1.85;
  border-top:1px solid var(--line);padding-top:16px;margin:0 20px 20px;padding-left:0;padding-right:0;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink-900);
  padding:56px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:18px 18px;opacity:.7;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-80px;width:360px;height:360px;
  background:linear-gradient(135deg,rgba(14,216,176,.22),rgba(255,78,142,.12));
  transform:rotate(45deg);border-radius:40px;
}
.cta-inner{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
}
.cta-copy{max-width:560px;}
.cta-copy h2{font-size:28px;font-weight:700;color:var(--w-1);line-height:1.3;}
.cta-copy p{margin-top:12px;font-size:15px;color:var(--w-2);line-height:1.85;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-shot{
  flex:0 0 260px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid rgba(14,216,176,.5);transform:rotate(-3deg);
  box-shadow:var(--sh-dark);
}
.cta-shot img{width:100%;height:150px;}

/* ---------- 回到顶部 ---------- */
.back-row{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:36px 0 64px;flex-wrap:wrap;
}
.back-row .crumb-note{font-size:14px;color:var(--t-2);}
.back-links{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line-dark);padding:56px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr .9fr;gap:32px;
}
.footer-brand .brand{margin-bottom:14px;}
.footer-desc{font-size:13.5px;color:var(--w-3);line-height:1.85;max-width:260px;}
.footer-col h4{font-size:15px;font-weight:600;color:var(--w-1);margin-bottom:14px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--w-2);}
.footer-col a:hover{color:var(--brand);}
.footer-qr{display:flex;flex-direction:column;gap:10px;align-items:flex-start;}
.qr-box{
  width:120px;height:120px;border-radius:var(--r-sm);
  border:1px dashed var(--line-dark);background:var(--ink-800);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:13px;color:var(--w-3);line-height:1.6;
}
.footer-qr span{font-size:12.5px;color:var(--w-3);}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line-dark);padding:20px 0;
}
.footer-bottom .container{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:#8A94A6;line-height:1.8;
}

/* ---------- 固定底部 CTA ---------- */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:55;display:none;
  height:56px;align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px;background:rgba(12,16,24,.96);border-top:1px solid var(--line-dark);
  transform:translateY(110%);transition:transform var(--t-base);
}
.mobile-cta.is-show{transform:translateY(0);}
.mobile-cta span{font-size:13.5px;color:var(--w-2);}
.mobile-cta .btn{height:38px;padding:0 18px;font-size:14px;}

/* ---------- 滚动进入 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity var(--t-base),transform var(--t-base);}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:1ms !important;animation-duration:1ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-hero h1{font-size:31px;}
  .search-box{width:168px;}
}
@media (max-width:1023px){
  .main-nav{gap:0;}
  .nav-link{padding:0 10px;font-size:14.5px;}
  .nav-link.is-active::after{left:10px;right:10px;}
  .search-box{display:none;}
  .quick-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-qr{grid-column:span 3;flex-direction:row;align-items:center;gap:16px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .main-nav{display:none;}
  .text-link{display:none;}
  .header-actions .btn-sm{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-inner{justify-content:space-between;gap:12px;}
  .page-hero{padding:36px 0 34px;}
  .page-hero h1{font-size:26px;}
  .page-hero .lede{font-size:15px;}
  .section{padding:48px 0;}
  .section h2{font-size:23px;}
  .toc-bar{top:64px;}
  .quick-grid{grid-template-columns:1fr;}
  .step{grid-template-columns:44px 1fr;gap:16px;padding:20px 18px;}
  .step-meta{grid-column:2;align-items:flex-start;flex-direction:row;min-width:0;flex-wrap:wrap;}
  .step-body h3{font-size:18px;}
  .tips{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-shot{flex:0 0 auto;width:100%;max-width:300px;transform:rotate(-2deg);}
  .cta-copy h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-qr{grid-column:span 2;}
  .footer-bottom .container{flex-direction:column;gap:6px;}
  .mobile-cta{display:flex;}
  body{padding-bottom:56px;}
}
@media (max-width:520px){
  .brand-name{font-size:16px;}
  .page-hero h1{font-size:23px;}
  .quick-card{padding:18px;}
  .faq-q{font-size:15px;padding:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-qr{grid-column:span 1;}
}

/* roulang page: category4 */
:root{
  --ink-900:#0C1018;
  --ink-800:#121826;
  --ink-700:#1B2230;
  --line-dark:#232B3A;
  --paper:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --brand:#0ED8B0;
  --brand-700:#08A98A;
  --brand-100:rgba(14,216,176,.12);
  --accent:#FF4E8E;
  --gold:#FFC65C;
  --text:#101828;
  --text-2:#5A6472;
  --text-3:#98A2B3;
  --w:#FFFFFF;
  --w2:rgba(255,255,255,.72);
  --w3:rgba(255,255,255,.48);
  --r-s:8px;
  --r-c:16px;
  --r-l:20px;
  --r-p:999px;
  --sh-l:0 8px 24px rgba(16,24,40,.06);
  --sh-d:0 16px 40px rgba(0,0,0,.38);
  --ring:0 0 0 3px rgba(14,216,176,.18);
  --t:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
h1{font-size:40px;line-height:1.2;font-weight:800;letter-spacing:-.4px;}
h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.3px;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
h4{font-size:17px;line-height:1.6;font-weight:600;}
:focus-visible{outline:none;box-shadow:var(--ring);border-radius:var(--r-s);}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-dark{background:var(--ink-900);color:var(--w);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head p{color:var(--text-2);font-size:15px;max-width:640px;}
.section-dark .section-head p{color:var(--w2);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--brand-700);letter-spacing:.4px;margin-bottom:14px;}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--brand);}
.section-dark .eyebrow{color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-p);font-size:15px;font-weight:600;transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t);}
.btn-primary{background:var(--brand);color:#06231C;box-shadow:0 8px 20px rgba(14,216,176,.28);}
.btn-primary:hover{background:#22E7C2;transform:translateY(-1px);box-shadow:0 12px 26px rgba(14,216,176,.36);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border:1px solid var(--line);color:var(--text);background:transparent;}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-700);}
.section-dark .btn-ghost{border-color:var(--line-dark);color:var(--w);}
.section-dark .btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}
.link-more{color:var(--brand-700);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{text-decoration:underline;text-underline-offset:3px;}

/* ---------- 标签 / 徽章 ---------- */
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-p);font-size:13px;font-weight:500;background:var(--brand-100);color:var(--brand-700);}
.tag-accent{background:rgba(255,78,142,.12);color:#D6316F;}
.tag-gold{background:rgba(255,198,92,.16);color:#9A6A08;}
.badge-top{display:inline-flex;align-items:center;gap:4px;height:22px;padding:0 8px;border-radius:6px;font-size:12px;font-weight:600;background:var(--brand);color:#06231C;}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--ink-900);border-bottom:1px solid var(--line-dark);}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:28px;height:28px;border-radius:8px;background:var(--brand);color:#06231C;display:inline-flex;align-items:center;justify-content:center;}
.brand-name{font-size:18px;font-weight:700;color:var(--w);letter-spacing:-.2px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;flex:1;}
.nav-link{position:relative;padding:8px 12px;font-size:15px;color:var(--w2);border-radius:8px;transition:color var(--t),transform var(--t);}
.nav-link:hover{color:var(--brand);transform:translateY(-1px);}
.nav-link.is-active{color:var(--w);font-weight:600;}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:3px;border-radius:2px;background:var(--brand);}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.search{display:flex;align-items:center;gap:8px;height:40px;padding:0 8px 0 14px;border-radius:var(--r-p);background:var(--ink-800);border:1px solid var(--line-dark);transition:border-color var(--t),box-shadow var(--t);}
.search:focus-within{border-color:var(--brand);box-shadow:var(--ring);}
.search input{width:150px;background:transparent;border:0;color:var(--w);font-size:14px;outline:none;}
.search input::placeholder{color:var(--w3);}
.search button{width:28px;height:28px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:var(--brand);}
.search button:hover{background:rgba(14,216,176,.14);}
.text-link{font-size:14px;color:var(--w2);}
.text-link:hover{color:var(--brand);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;color:var(--w);align-items:center;justify-content:center;}
.nav-toggle:hover{background:var(--ink-800);}
.nav-mask{position:fixed;inset:0;background:rgba(12,16,24,.6);opacity:0;pointer-events:none;transition:opacity var(--t);z-index:70;}
.nav-mask.is-open{opacity:1;pointer-events:auto;}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;background:var(--ink-900);border-left:1px solid var(--line-dark);transform:translateX(100%);transition:transform 240ms ease-out;z-index:80;padding:24px 20px;overflow-y:auto;}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-list{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.drawer-list a{padding:12px 10px;border-radius:10px;color:var(--w2);font-size:15px;}
.drawer-list a:hover{background:var(--ink-800);color:var(--w);}
.drawer-list a.is-active{color:var(--brand);font-weight:600;background:var(--ink-800);}
.drawer-foot{display:flex;flex-direction:column;gap:12px;border-top:1px solid var(--line-dark);padding-top:20px;}

/* ---------- Hero ---------- */
.page-hero{position:relative;min-height:240px;display:flex;align-items:center;background-color:var(--ink-900);background-image:linear-gradient(90deg,rgba(12,16,24,.9) 0%,rgba(12,16,24,.62) 55%,rgba(12,16,24,.4) 100%),url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center;color:var(--w);padding:40px 0;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--w3);margin-bottom:16px;flex-wrap:wrap;}
.crumb a{color:var(--w2);}
.crumb a:hover{color:var(--brand);}
.crumb span.sep{color:var(--w3);}
.crumb .current{color:var(--w3);}
.page-hero h1{font-size:36px;font-weight:700;max-width:820px;}
.page-hero .hero-sub{margin-top:14px;font-size:17px;color:var(--w2);max-width:720px;}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px;}
.hero-tags .chip{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-p);font-size:13px;color:var(--w2);border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04);}

/* ---------- 数据总览 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-c);padding:24px;box-shadow:var(--sh-l);transition:transform var(--t),border-color var(--t),box-shadow var(--t);}
.stat-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:0 16px 32px rgba(16,24,40,.1);}
.stat-card .stat-label{font-size:13px;color:var(--text-3);}
.stat-card .stat-value{font-size:34px;font-weight:800;line-height:1.2;margin:8px 0 6px;font-variant-numeric:tabular-nums;letter-spacing:-.5px;}
.stat-card .stat-note{font-size:13px;color:var(--text-2);}
.stat-card .stat-trend{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--brand-700);font-weight:600;}

/* ---------- 榜单区 ---------- */
.board-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start;}
.rank-list{display:flex;flex-direction:column;gap:14px;}
.rank-row{display:grid;grid-template-columns:56px 96px minmax(0,1fr) 120px;align-items:center;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-c);padding:16px 20px;transition:transform var(--t),border-color var(--t),box-shadow var(--t);}
.rank-row:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:0 16px 32px rgba(16,24,40,.1);}
.rank-no{font-size:30px;font-weight:800;line-height:1;color:var(--text-3);font-variant-numeric:tabular-nums;letter-spacing:-1px;text-align:center;}
.rank-no.is-top{color:var(--gold);font-size:38px;text-shadow:0 6px 18px rgba(255,198,92,.32);}
.rank-thumb{width:96px;height:60px;object-fit:cover;border-radius:10px;background:var(--ink-700);}
.rank-main h3{font-size:17px;font-weight:600;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.rank-main p{font-size:13px;color:var(--text-2);margin-top:6px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
.rank-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px;}
.rank-metric{text-align:right;}
.rank-metric strong{display:block;font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--text);}
.rank-metric span{font-size:12px;color:var(--text-3);}
.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:88px;}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-c);padding:22px;box-shadow:var(--sh-l);}
.side-card h3{font-size:17px;margin-bottom:14px;}
.side-list{display:flex;flex-direction:column;gap:12px;}
.side-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:var(--text-2);padding-bottom:12px;border-bottom:1px dashed var(--line);}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list li b{font-weight:600;color:var(--text);font-variant-numeric:tabular-nums;}
.cloud{display:flex;flex-wrap:wrap;gap:8px;}
.cloud a{font-size:13px;padding:6px 12px;border-radius:var(--r-p);border:1px solid var(--line);color:var(--text-2);}
.cloud a:hover{border-color:var(--brand);color:var(--brand-700);background:var(--brand-100);}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-left:8px;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--brand),rgba(14,216,176,.08));}
.timeline li{position:relative;padding-bottom:34px;}
.timeline li:last-child{padding-bottom:0;}
.tl-dot{position:absolute;left:-34px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--ink-900);border:2px solid var(--brand);}
.tl-body time{display:block;font-size:13px;color:var(--brand);font-variant-numeric:tabular-nums;margin-bottom:6px;}
.tl-body h4{color:var(--w);}
.tl-body p{font-size:14px;color:var(--w2);margin-top:6px;}

/* ---------- 分榜入口 ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-c);overflow:hidden;box-shadow:var(--sh-l);transition:transform var(--t),border-color var(--t),box-shadow var(--t);}
.info-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:0 16px 32px rgba(16,24,40,.1);}
.info-card .card-cover{aspect-ratio:16/9;width:100%;object-fit:cover;background:var(--ink-700);}
.info-card .card-body{padding:20px;}
.info-card h3{font-size:17px;margin-bottom:8px;}
.info-card p{font-size:14px;color:var(--text-2);}
.info-card:hover h3{color:var(--brand-700);}
.card-meta{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:13px;color:var(--text-3);}

/* ---------- 口径说明 ---------- */
.rule-card{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:12px;padding:22px;}
.rule-card h3{font-size:17px;margin-bottom:8px;}
.rule-card p{font-size:14px;color:var(--text-2);}
.callout{margin-top:28px;background:var(--brand-100);border-left:3px solid var(--brand);border-radius:12px;padding:18px 22px;font-size:14px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 24px;align-items:start;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-c);overflow:hidden;transition:border-color var(--t),box-shadow var(--t);}
.faq-item.is-open{border-color:var(--brand);box-shadow:var(--sh-l);}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:14px;width:100%;min-height:56px;padding:16px 20px;text-align:left;font-size:16px;font-weight:600;}
.faq-q:hover{color:var(--brand-700);}
.faq-q .bar{position:absolute;}
.faq-q span{position:relative;padding-left:14px;}
.faq-q span::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--brand);opacity:0;transition:opacity var(--t);}
.faq-item.is-open .faq-q span::before{opacity:1;}
.faq-icon{flex-shrink:0;width:24px;height:24px;border-radius:50%;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;font-size:15px;color:var(--text-2);transition:transform 240ms ease-out,color var(--t),border-color var(--t);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--brand-700);border-color:var(--brand);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 240ms ease-out;}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{position:relative;background:var(--ink-900);color:var(--w);overflow:hidden;padding:96px 0;}
.cta-band::before{content:"";position:absolute;top:-80px;right:-60px;width:320px;height:320px;background:var(--brand);opacity:.1;transform:rotate(45deg);border-radius:40px;}
.cta-band::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);background-size:22px 22px;opacity:.5;pointer-events:none;}
.cta-inner{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:center;}
.cta-inner h2{color:var(--w);}
.cta-inner p{margin-top:14px;color:var(--w2);max-width:560px;}
.cta-actions{display:flex;gap:16px;margin-top:28px;flex-wrap:wrap;}
.cta-cover{width:100%;border-radius:var(--r-c);border:1px solid rgba(14,216,176,.5);transform:rotate(-3deg);box-shadow:var(--sh-d);object-fit:cover;aspect-ratio:16/9;background:var(--ink-700);}
.back-top-wrap{display:flex;justify-content:center;padding:56px 0 72px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-900);color:var(--w);border-top:1px solid var(--line-dark);padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr auto;gap:32px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-desc{font-size:14px;color:var(--w2);line-height:1.85;max-width:280px;}
.footer-col h4{font-size:15px;color:var(--w);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--w2);}
.footer-col a:hover{color:var(--brand);}
.footer-qr{display:flex;flex-direction:column;align-items:center;gap:10px;}
.qr-box{width:120px;height:120px;border-radius:12px;border:1px dashed var(--line-dark);display:flex;align-items:center;justify-content:center;text-align:center;font-size:13px;color:var(--w3);line-height:1.6;background:var(--ink-800);}
.footer-qr span{font-size:12px;color:var(--w3);}
.footer-bottom{border-top:1px solid var(--line-dark);padding:20px 0;}
.footer-bottom .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:#8A94A6;line-height:1.8;}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 240ms ease-out,transform 240ms ease-out;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  h1{font-size:36px;}
  h2{font-size:27px;}
  .page-hero h1{font-size:32px;}
  .board-layout{grid-template-columns:minmax(0,1fr) 280px;gap:24px;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .container{padding:0 20px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .search input{width:110px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .board-layout{grid-template-columns:1fr;}
  .side-stack{position:static;}
  .cta-inner{grid-template-columns:1fr;}
  .cta-cover{max-width:420px;transform:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .section{padding:48px 0;}
  .container{padding:0 16px;}
  .header-inner{gap:12px;height:60px;}
  .brand-name{font-size:16px;}
  .search{display:none;}
  .header-actions .text-link{display:none;}
  .header-actions .btn-sm{padding:0 14px;}
  .page-hero{min-height:200px;padding:32px 0;}
  .page-hero h1{font-size:25px;}
  .page-hero .hero-sub{font-size:15px;}
  h2{font-size:23px;}
  .stat-grid{grid-template-columns:1fr;gap:16px;}
  .grid-4,.grid-3{grid-template-columns:1fr;gap:16px;}
  .rank-row{grid-template-columns:44px 80px minmax(0,1fr);gap:12px;padding:14px;}
  .rank-thumb{width:80px;height:52px;}
  .rank-no{font-size:24px;}
  .rank-no.is-top{font-size:30px;}
  .rank-metric{grid-column:2 / -1;text-align:left;display:flex;align-items:baseline;gap:8px;}
  .rank-metric strong{font-size:18px;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-band{padding:64px 0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom .container{flex-direction:column;gap:6px;}
  .sidebar-scroll{overflow-x:auto;padding-bottom:6px;}
  .sidebar-scroll .side-card{min-width:78vw;}
}

/* roulang page: category5 */
:root{
  --ink-900:#0C1018;
  --ink-800:#121826;
  --ink-700:#1B2230;
  --line-dark:#232B3A;
  --paper:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --brand:#0ED8B0;
  --brand-700:#08A98A;
  --brand-100:rgba(14,216,176,.12);
  --accent:#FF4E8E;
  --gold:#FFC65C;
  --text-1:#101828;
  --text-2:#5A6472;
  --text-3:#98A2B3;
  --text-3dark:#CBD2DC;
  --radius-s:8px;
  --radius-m:16px;
  --radius-l:20px;
  --shadow-l:0 8px 24px rgba(16,24,40,.06);
  --shadow-lh:0 16px 36px rgba(16,24,40,.12);
  --shadow-d:0 16px 40px rgba(0,0,0,.38);
  --focus-ring:0 0 0 3px rgba(14,216,176,.18);
  --section-y:88px;
  --tr:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text-1);
  background:#FFFFFF;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--tr),border-color var(--tr),background-color var(--tr)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3}
p{margin:0}
h1{font-size:34px;font-weight:700;line-height:1.35}
h2{font-size:30px;font-weight:700}
h3{font-size:20px;font-weight:600}
h4{font-size:17px;font-weight:600}
:focus-visible{outline:none;box-shadow:var(--focus-ring)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  height:64px;
  background:rgba(12,16,24,.94);
  border-bottom:1px solid var(--line-dark);
  backdrop-filter:blur(10px);
}
.header-inner{height:64px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:9px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  background:linear-gradient(135deg,var(--brand),var(--brand-700));
  color:#0C1018;display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px rgba(14,216,176,.28);
}
.brand-name{
  font-size:18px;font-weight:700;letter-spacing:-.2px;color:#FFFFFF;white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:2px;flex:1 1 auto;min-width:0}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:64px;padding:0 13px;
  font-size:15px;color:rgba(255,255,255,.72);
  white-space:nowrap;
  transition:color var(--tr),transform var(--tr);
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:14px;height:3px;border-radius:2px;
  background:var(--brand);opacity:0;transform:scaleX(.4);transition:opacity var(--tr),transform var(--tr);
}
.nav-link:hover{color:var(--brand);transform:translateY(-1px)}
.nav-link.is-active{color:#FFFFFF;font-weight:600}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{position:relative}
.search-box input{
  width:196px;height:40px;border-radius:999px;
  border:1px solid var(--line-dark);
  background:rgba(255,255,255,.06);
  color:#FFFFFF;padding:0 16px;font-size:14px;
  transition:border-color var(--tr),box-shadow var(--tr),background-color var(--tr);
}
.search-box input::placeholder{color:rgba(255,255,255,.42)}
.search-box input:focus{
  outline:none;border-color:var(--brand);background:rgba(255,255,255,.09);
  box-shadow:0 0 0 3px rgba(14,216,176,.18);
}
.link-login{font-size:14px;color:rgba(255,255,255,.72);padding:8px 4px}
.link-login:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line-dark);background:rgba(255,255,255,.05);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#FFFFFF;transition:transform var(--tr),opacity var(--tr)}
.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-mask{
  position:fixed;inset:0;background:rgba(12,16,24,.6);
  opacity:0;pointer-events:none;transition:opacity var(--tr);z-index:59;
}
.nav-mask.is-open{opacity:1;pointer-events:auto}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform var(--tr),box-shadow var(--tr),background-color var(--tr),color var(--tr),border-color var(--tr);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:48px;padding:0 28px;font-size:16px}
.btn-primary{background:var(--brand);color:#08130F;box-shadow:0 6px 18px rgba(14,216,176,.24)}
.btn-primary:hover{background:#2CE3BF;box-shadow:0 12px 26px rgba(14,216,176,.34);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(14,216,176,.22)}
.btn-primary[disabled]{opacity:.4;pointer-events:none}
.btn-ghost{border:1px solid rgba(255,255,255,.28);color:#FFFFFF;background:transparent}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost-dark{border:1px solid var(--line);color:var(--text-1);background:#FFFFFF}
.btn-ghost-dark:hover{border-color:var(--brand);color:var(--brand-700);transform:translateY(-1px)}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-size:15px;font-weight:600}
.btn-link:hover{text-decoration:underline;text-underline-offset:3px}
.btn-link-light{color:var(--brand)}
.btn-link-light:hover{text-decoration:underline;text-underline-offset:3px}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  min-height:250px;
  display:flex;align-items:center;
  background:linear-gradient(90deg,rgba(12,16,24,.94) 0%,rgba(12,16,24,.62) 100%),
             url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:40px 0 44px;
  color:#FFFFFF;
}
.crumb{font-size:13px;color:rgba(255,255,255,.6);display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:rgba(255,255,255,.32)}
.crumb .current{color:var(--text-3)}
.page-hero h1{max-width:820px;font-size:34px;font-weight:700;line-height:1.35}
.page-hero .hero-sub{
  margin-top:14px;max-width:660px;
  font-size:17px;line-height:1.8;color:rgba(255,255,255,.78);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  font-size:13px;font-weight:500;color:rgba(255,255,255,.82);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.05);
}

/* ============ 板块 ============ */
.section{padding:var(--section-y) 0}
.section-paper{background:var(--paper)}
.section-dark{background:var(--ink-900);color:#FFFFFF}
.section-line{border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head .head-text{max-width:720px}
.section-head p{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.9}
.section-dark .section-head p{color:rgba(255,255,255,.72)}

/* ============ 卡片 ============ */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-l);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-lh)}
.feature-card{padding:24px}
.feature-card .ico{
  width:44px;height:44px;border-radius:12px;
  background:var(--brand-100);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.feature-card h3{font-size:18px;margin-bottom:10px}
.feature-card p{font-size:15px;color:var(--text-2);line-height:1.85}
.feature-card .meta{margin-top:14px;font-size:13px;color:var(--text-3)}
.preview-card{overflow:hidden;display:flex;flex-direction:column}
.preview-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-700)}
.preview-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 240ms ease-out}
.preview-card:hover .thumb img{transform:scale(1.04)}
.preview-card .badge-cat{
  position:absolute;left:12px;top:12px;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(14,216,176,.16);color:#3FF0CD;font-size:12px;font-weight:500;
  display:inline-flex;align-items:center;backdrop-filter:blur(4px);
}
.preview-card .body{padding:20px;display:flex;flex-direction:column;gap:10px}
.preview-card h3{font-size:17px;line-height:1.5}
.preview-card:hover h3{color:var(--brand-700)}
.preview-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.mini-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}

/* ============ 参数表 ============ */
.param-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.param-card{padding:0;overflow:hidden}
.param-card .param-head{padding:22px 24px 16px;border-bottom:1px solid var(--line)}
.param-card .param-head h3{font-size:18px}
.param-card .param-head p{margin-top:8px;font-size:14px;color:var(--text-2)}
.table-wrap{overflow-x:auto;padding:0 0 6px}
.table-wrap::-webkit-scrollbar{height:6px}
.table-wrap::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px}
table{width:100%;border-collapse:separate;border-spacing:0;min-width:460px}
th,td{
  text-align:left;padding:14px 16px;font-size:14px;
  border-bottom:1px solid var(--line);vertical-align:middle;
}
thead th{
  position:sticky;top:0;z-index:2;
  background:#FFFFFF;
  font-size:13px;font-weight:600;color:var(--text-2);
  letter-spacing:.02em;
}
tbody tr:nth-child(even){background:rgba(16,24,40,.02)}
tbody tr:hover{background:var(--brand-100)}
td:first-child,th:first-child{font-weight:600;color:var(--text-1)}
.mark-yes{color:var(--brand-700);font-weight:700}
.mark-no{color:var(--text-3dark);font-weight:600}
.row-title{font-size:14px;color:var(--text-1)}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 20px;align-items:start}
.faq-item{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--radius-m);
  overflow:hidden;box-shadow:var(--shadow-l);
  transition:border-color var(--tr),box-shadow var(--tr);
}
.faq-item:hover{border-color:#CFE9E3}
.faq-item.is-open{border-color:var(--brand);box-shadow:0 10px 28px rgba(14,216,176,.12)}
.faq-q{margin:0}
.faq-q button{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px 18px 26px;text-align:left;font-size:17px;font-weight:600;color:var(--text-1);
}
.faq-q button::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:2px;
  background:var(--line);transition:background var(--tr);
}
.faq-item.is-open .faq-q button::before{background:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-100);color:var(--brand-700);
  font-size:18px;line-height:1;transition:transform 240ms ease-out,background-color var(--tr);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand);color:#08130F}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease-out}
.faq-a p{padding:0 22px 20px 26px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ 表单 ============ */
.form-card{padding:32px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--text-2)}
.field .hint{font-size:12px;color:var(--text-3);line-height:1.6}
.field input,.field select,.field textarea{
  width:100%;min-height:44px;padding:10px 14px;
  border:1px solid var(--line);border-radius:10px;background:#FFFFFF;
  font-size:15px;color:var(--text-1);
  transition:border-color var(--tr),box-shadow var(--tr);
}
.field textarea{min-height:112px;resize:vertical;line-height:1.8}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:var(--focus-ring);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--accent)}
.field .err{display:none;font-size:12px;color:var(--accent)}
.field.has-error .err{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);line-height:1.7}
.check-row input{width:18px;height:18px;min-height:0;margin-top:3px;accent-color:var(--brand)}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:24px}
.form-status{
  display:none;margin-top:20px;padding:16px 18px;border-radius:12px;
  background:var(--brand-100);border-left:3px solid var(--brand);
  font-size:14px;color:var(--text-1);line-height:1.8;
}
.form-status.is-show{display:block}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-900);color:#FFFFFF;
  padding:56px 0;
  border-top:1px solid var(--line-dark);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:18px 18px;pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:28px}
.cta-inner p{margin-top:12px;font-size:16px;color:rgba(255,255,255,.72);max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 返回入口 ============ */
.back-strip{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:32px 0}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:#FFFFFF;border-top:1px solid var(--line-dark);padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.6fr .9fr .9fr .9fr 148px;gap:32px;padding-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{font-size:13px;line-height:1.9;color:rgba(255,255,255,.6);max-width:300px}
.footer-col h4{font-size:14px;font-weight:600;color:#FFFFFF;margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:13px;color:rgba(255,255,255,.6)}
.footer-col a:hover{color:var(--brand)}
.footer-qr{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.qr-box{
  width:120px;height:120px;border-radius:12px;
  border:1px dashed var(--line-dark);background:rgba(255,255,255,.04);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.6;color:rgba(255,255,255,.48);
}
.footer-qr span{font-size:12px;color:rgba(255,255,255,.48)}
.footer-bottom{border-top:1px solid var(--line-dark);padding:18px 0}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom span{font-size:12px;line-height:1.8;color:#8A94A6}

/* ============ 悬浮组件 ============ */
.to-top{
  position:fixed;right:24px;bottom:32px;z-index:45;
  width:48px;height:48px;border-radius:50%;
  background:var(--ink-800);border:1px solid var(--line-dark);color:#FFFFFF;
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity var(--tr),transform var(--tr),border-color var(--tr),color var(--tr);
  box-shadow:var(--shadow-d);
}
.to-top.is-show{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{border-color:var(--brand);color:var(--brand)}
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:44;height:56px;
  display:none;align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px;background:rgba(12,16,24,.97);
  border-top:1px solid var(--line-dark);
  transform:translateY(100%);transition:transform 240ms ease-out;
}
.sticky-cta.is-show{transform:none}
.sticky-cta span{font-size:13px;color:rgba(255,255,255,.76)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .45s ease-out,transform .45s ease-out}
.reveal.is-in{opacity:1;transform:none}

/* ============ 断点 ============ */
@media (max-width:1279px){
  .page-hero h1{font-size:31px}
  .footer-grid{grid-template-columns:1.4fr .9fr .9fr 148px;gap:28px}
  .footer-grid .footer-col:nth-child(4){display:none}
}
@media (max-width:1023px){
  :root{--section-y:64px}
  .header-inner{gap:14px}
  .nav-link{padding:0 10px;font-size:14px}
  .search-box input{width:150px}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .param-grid{grid-template-columns:1fr}
  .page-hero h1{font-size:29px}
  .footer-grid{grid-template-columns:1fr 1fr 148px}
  .footer-grid .footer-col:nth-child(4){display:block}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  :root{--section-y:48px}
  .container{padding:0 16px}
  .main-nav{
    position:fixed;top:0;right:0;z-index:60;
    width:82vw;max-width:340px;height:100vh;
    background:var(--ink-800);border-left:1px solid var(--line-dark);
    flex-direction:column;align-items:stretch;gap:0;
    padding:84px 20px 32px;
    transform:translateX(102%);
    transition:transform 260ms ease-out;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:none}
  .main-nav .nav-link{height:52px;padding:0 12px;font-size:16px;border-radius:10px}
  .main-nav .nav-link::after{display:none}
  .main-nav .nav-link.is-active{background:var(--brand-100);color:var(--brand)}
  .search-box{display:none}
  .link-login{display:none}
  .nav-toggle{display:flex}
  .page-hero{min-height:220px;padding:32px 0 36px}
  .page-hero h1{font-size:24px}
  .page-hero .hero-sub{font-size:15px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:22px}
  .cta-band{padding:44px 0}
  .cta-inner h2{font-size:23px}
  .to-top{right:16px;bottom:72px;width:44px;height:44px}
  .sticky-cta{display:flex}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer-brand{grid-column:1 / -1}
  .footer-qr{grid-column:1 / -1}
  .footer-bottom .container{flex-direction:column;align-items:flex-start}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
}
@media (max-width:519px){
  h1{font-size:22px}
  h2{font-size:23px}
  .header-inner{gap:10px}
  .brand-name{font-size:16px}
  .btn-sm{padding:0 14px;font-size:13px}
  .page-hero h1{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}