/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --c-bg:#F5F5F2;
  --c-surface:#FFFFFF;
  --c-ink:#0B0C10;
  --c-ink-2:#3A3D46;
  --c-muted:#7A7E88;
  --c-line:#E7E7E2;
  --c-primary:#6B3BF5;
  --c-primary-d:#5529D8;
  --c-mint:#14E0A8;
  --c-lime:#FFD54A;
  --c-danger:#E5484D;
  --c-soft:#FAFAF7;
  --r-card:16px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(11,12,16,.06);
  --shadow-2:0 12px 32px -12px rgba(107,59,245,.28);
  --shadow-nav:0 1px 0 rgba(11,12,16,.06),0 10px 30px -18px rgba(11,12,16,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:180ms;
  --container:1240px;
  --sec:96px;
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","SF Pro Display","Segoe UI",system-ui,sans-serif;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.25;font-weight:700;letter-spacing:.005em}
h1{font-size:clamp(34px,5vw,56px);line-height:1.1;font-weight:800}
h2{font-size:clamp(26px,3.2vw,36px);font-weight:800}
h3{font-size:20px;font-weight:700}
p{margin:0}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t) var(--ease)}
a:hover{color:var(--c-primary-d)}
img{max-width:100%;display:block;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
svg{display:block}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(107,59,245,.18);color:var(--c-ink)}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ============ 容器 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0}
.section--tight{padding:72px 0}
.section--dark{background:var(--c-ink);color:#E9E9EE}

/* ============ 板块标题三段式 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}
.sec-head__left{max-width:720px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--c-primary);margin-bottom:14px;
}
.sec-tag::before{content:"";width:22px;height:2px;background:var(--c-primary);border-radius:2px}
.sec-desc{margin-top:14px;font-size:16px;line-height:1.8;color:var(--c-muted);max-width:620px}
.sec-more{
  display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
  padding:10px 20px;border:1px solid var(--c-line);border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--c-ink);background:var(--c-surface);
  transition:all var(--t) var(--ease);
}
.sec-more:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(107,59,245,.06)}
.sec-more .arrow{transition:transform var(--t) var(--ease)}
.sec-more:hover .arrow{transform:translateX(2px)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;
  font-weight:600;font-size:15px;line-height:1;white-space:nowrap;
  min-height:44px;padding:0 24px;cursor:pointer;
  transition:background-color var(--t) var(--ease),color var(--t) var(--ease),border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),transform var(--t) var(--ease);
}
.btn .arrow{display:inline-block;transition:transform var(--t) var(--ease)}
.btn:hover .arrow{transform:translateX(2px)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -12px rgba(107,59,245,.9)}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(107,59,245,.95)}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-d)}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-line);background:var(--c-surface)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(107,59,245,.06)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.btn-outline-light:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.6)}
.btn-lg{min-height:52px;padding:0 30px;font-size:16px}
.btn-sm{min-height:36px;padding:0 16px;font-size:13.5px}
.btn-full{width:100%}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.btn-link:hover{border-bottom-color:var(--c-primary)}

/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1.4;
}
.tag-mint{background:rgba(20,224,168,.12);color:#0A7D60}
.tag-lime{background:rgba(255,213,74,.22);color:#5C4708}
.tag-gray{background:#EFEFEB;color:var(--c-ink-2)}
.tag-primary{background:rgba(107,59,245,.1);color:var(--c-primary-d)}
.badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;flex:0 0 auto}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,245,242,.72);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t) var(--ease),background-color var(--t) var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);background:rgba(245,245,242,.9)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink)}
.logo:hover{color:var(--c-ink)}
.logo-mark{flex:0 0 auto}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;font-size:15px;font-weight:500;color:var(--c-ink-2);border-radius:10px;
  transition:color var(--t) var(--ease),background-color var(--t) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t) var(--ease);
}
.nav-link:hover{color:var(--c-ink);background:rgba(107,59,245,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-cmd{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 12px;
  background:#EFEFEB;border:1px solid transparent;border-radius:var(--r-pill);
  transition:width var(--t) var(--ease),border-color var(--t) var(--ease),background-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.search-box:focus-within{width:320px;background:var(--c-surface);border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(107,59,245,.14)}
.search-box svg{flex:0 0 auto;color:var(--c-muted)}
.search-box input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--c-ink);
}
.search-box input::placeholder{color:var(--c-muted)}
.search-box kbd{
  flex:0 0 auto;font-family:var(--font-num);font-size:11px;line-height:1;
  padding:4px 6px;border-radius:6px;background:#fff;border:1px solid var(--c-line);color:var(--c-muted);
}
.nav-ghost{font-size:14.5px;font-weight:600;color:var(--c-ink-2);padding:8px 4px;white-space:nowrap}
.nav-ghost:hover{color:var(--c-primary)}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;border:1px solid var(--c-line);background:var(--c-surface);
}
.burger span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform var(--t) var(--ease),opacity var(--t) var(--ease)}
.burger span+span{margin-top:4px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  display:flex;flex-direction:column;padding:24px;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform 280ms var(--ease),opacity 280ms var(--ease),visibility 280ms;
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer__close{width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;background:var(--c-surface)}
.drawer__search{display:flex;align-items:center;gap:10px;height:48px;padding:0 16px;background:#EFEFEB;border-radius:var(--r-pill);margin-bottom:20px}
.drawer__search input{flex:1;border:0;background:transparent;outline:none;font-size:15px}
.drawer__nav{display:flex;flex-direction:column}
.drawer__nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;font-size:17px;font-weight:600;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
  opacity:0;transform:translateY(14px);
  transition:opacity 320ms var(--ease),transform 320ms var(--ease),color var(--t) var(--ease);
}
.drawer.is-open .drawer__nav a{opacity:1;transform:translateY(0)}
.drawer.is-open .drawer__nav a:nth-child(1){transition-delay:60ms}
.drawer.is-open .drawer__nav a:nth-child(2){transition-delay:100ms}
.drawer.is-open .drawer__nav a:nth-child(3){transition-delay:140ms}
.drawer.is-open .drawer__nav a:nth-child(4){transition-delay:180ms}
.drawer.is-open .drawer__nav a:nth-child(5){transition-delay:220ms}
.drawer__nav a span.chev{color:var(--c-muted)}
.drawer__cta{margin-top:28px}
.drawer__foot{margin-top:auto;padding-top:28px;font-size:13px;color:var(--c-muted)}

/* ============ Hero ============ */
.hero{
  position:relative;isolation:isolate;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:#fff;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(105deg,rgba(11,12,16,.9) 0%,rgba(11,12,16,.78) 46%,rgba(11,12,16,.5) 100%);
}
.hero__inner{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:56px;align-items:center;padding:96px 0 88px;
}
.hero__badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,213,74,.7);background:rgba(255,213,74,.14);
  color:var(--c-lime);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.hero h1{color:#fff;margin:22px 0 18px;max-width:16em}
.hero h1 em{
  font-style:normal;
  box-shadow:inset 0 -12px 0 rgba(107,59,245,.55);
}
.hero__sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.84);max-width:34em}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:8px;margin-top:52px;padding-top:28px;
  border-top:1px solid rgba(255,255,255,.16);
}
.hero__stat-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(24px,2.6vw,32px);font-weight:800;color:#fff;line-height:1.1;
}
.hero__stat-num small{font-size:14px;font-weight:600;margin-left:2px;color:rgba(255,255,255,.7)}
.hero__stat-label{margin-top:6px;font-size:12.5px;color:rgba(255,255,255,.62);letter-spacing:.02em}

.hero__visual{position:relative;padding:18px 0 34px}
.hero__img{
  border-radius:20px;overflow:hidden;
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 40px 80px -40px rgba(0,0,0,.85);
}
.hero__img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero__float{
  position:absolute;left:-26px;bottom:0;
  width:min(272px,84%);
  background:var(--c-surface);color:var(--c-ink-2);
  border-radius:16px;padding:18px 20px;
  box-shadow:0 24px 48px -22px rgba(11,12,16,.5);
}
.hero__float-title{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--c-ink);margin-bottom:10px}
.hero__float-row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;padding:5px 0;color:var(--c-muted)}
.hero__float-row b{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--c-ink);font-weight:700}

/* ============ 栏目速览 ============ */
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}
.col-7{grid-column:span 7}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-4{grid-column:span 4}
.col-8{grid-column:span 8}

.channel-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.channel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(107,59,245,.35)}
.channel-card--feature{flex-direction:row;gap:28px;align-items:center;padding:0;overflow:hidden}
.channel-card--feature .channel-card__body{padding:32px 0 32px 32px;flex:1 1 auto}
.channel-card--feature .channel-card__media{flex:0 0 45%;align-self:stretch;overflow:hidden}
.channel-card--feature .channel-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.channel-card--feature:hover .channel-card__media img{transform:scale(1.04)}
.channel-card__idx{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:15px;font-weight:800;color:var(--c-primary);letter-spacing:.14em;margin-bottom:14px;
}
.channel-card h3{margin-bottom:10px;font-size:19px}
.channel-card p{font-size:14.5px;line-height:1.8;color:var(--c-muted)}
.channel-card__link{margin-top:18px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.channel-card:hover .channel-card__link .arrow{transform:translateX(2px)}
.channel-card__link .arrow{display:inline-block;transition:transform var(--t) var(--ease)}
.channel-card__thumb{margin-top:20px;border-radius:var(--r-img);overflow:hidden}
.channel-card__thumb img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform 320ms var(--ease)}
.channel-card:hover .channel-card__thumb img{transform:scale(1.04)}

/* ============ 优惠阶梯 ============ */
.tiers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start}
.tier{
  position:relative;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--shadow-1);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.tier::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;border-radius:16px 16px 0 0;background:var(--c-line)}
.tier--a::before{background:var(--c-muted)}
.tier--b::before{background:var(--c-primary);height:4px}
.tier--c::before{background:var(--c-ink)}
.tier:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.tier--b{border-color:rgba(107,59,245,.4)}
.tier--c{margin-top:36px;border-color:var(--c-ink)}
.tier--a{margin-top:56px}
.tier__top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:18px}
.tier__num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(40px,4.6vw,56px);font-weight:800;line-height:1;color:var(--c-line);
  letter-spacing:-.02em;
}
.tier--b .tier__num{color:rgba(107,59,245,.28)}
.tier--c .tier__num{color:rgba(11,12,16,.2)}
.tier__name{font-size:21px;font-weight:800;color:var(--c-ink);margin-bottom:8px}
.tier__cond{font-size:14px;color:var(--c-muted);line-height:1.75;min-height:52px}
.tier__list{margin:22px 0;display:flex;flex-direction:column;gap:12px}
.tier__list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7;color:var(--c-ink-2)}
.tier__list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:8px;border-radius:2px;
  background:var(--c-primary);
}
.tier--a .tier__list li::before{background:var(--c-muted)}
.tier--c .tier__list li::before{background:var(--c-mint)}
.tier__corner{
  position:absolute;right:20px;top:-12px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(20,224,168,.16);color:#0A7D60;
  font-size:12px;font-weight:700;border:1px solid rgba(20,224,168,.4);
}

/* ============ 套餐对比 ============ */
.cmp-wrap{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.cmp-table{width:100%;border-collapse:collapse;table-layout:fixed}
.cmp-table th,.cmp-table td{
  padding:0 20px;text-align:left;border-bottom:1px solid var(--c-line);vertical-align:middle;
  font-size:14.5px;line-height:1.6;
}
.cmp-table thead th{height:56px;font-size:14px;font-weight:700;color:var(--c-ink);background:var(--c-soft)}
.cmp-table tbody th{height:52px;font-weight:600;color:var(--c-ink);background:var(--c-soft);width:236px}
.cmp-table tbody td{height:52px;color:var(--c-ink-2)}
.cmp-table tbody tr:last-child th,.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table .is-reco{background:rgba(107,59,245,.06)}
.cmp-table thead .is-reco{border-top:2px solid var(--c-primary);color:var(--c-primary-d)}
.cmp-yes{display:inline-flex;align-items:center;gap:8px;color:var(--c-ink);font-weight:600}
.cmp-yes svg{color:var(--c-primary);flex:0 0 auto}
.cmp-no{display:inline-block;width:18px;height:2px;border-radius:2px;background:#D6D6D0}
.cmp-cards{display:none;flex-direction:column;gap:18px}
.cmp-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-1)}
.cmp-card.is-reco{border-color:rgba(107,59,245,.45)}
.cmp-card__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.cmp-card__head h3{font-size:18px}
.cmp-card dl{margin:0;display:flex;flex-direction:column}
.cmp-card dt{font-size:13px;color:var(--c-muted);margin-top:14px}
.cmp-card dd{margin:4px 0 0;font-size:14.5px;color:var(--c-ink-2)}

/* ============ 限时入口 ============ */
.flash{position:relative;background:var(--c-ink);color:#fff;overflow:hidden}
.flash::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(107,59,245,.5) 0%,rgba(107,59,245,0) 68%);
  pointer-events:none;
}
.flash__inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);
  gap:48px;align-items:center;padding:72px 0;
}
.flash h2{color:#fff;margin-bottom:12px}
.flash__sub{font-size:15.5px;color:rgba(255,255,255,.72);max-width:32em}
.countdown{display:flex;align-items:flex-end;gap:10px;margin:28px 0 22px}
.cd-unit{display:flex;flex-direction:column;align-items:center;gap:6px;min-width:66px}
.cd-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(30px,3.4vw,44px);font-weight:800;line-height:1;color:var(--c-lime);
  background:rgba(255,213,74,.1);border:1px solid rgba(255,213,74,.34);
  border-radius:12px;padding:10px 12px;min-width:66px;text-align:center;
}
.cd-label{font-size:12px;color:rgba(255,255,255,.58);letter-spacing:.06em}
.cd-sep{font-family:var(--font-num);font-size:26px;font-weight:800;color:rgba(255,213,74,.6);padding-bottom:26px}
.flash__bar{margin-top:6px;max-width:420px}
.flash__bar-track{height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.14);overflow:hidden}
.flash__bar-fill{
  height:100%;width:0;border-radius:var(--r-pill);
  background:linear-gradient(90deg,var(--c-mint),var(--c-primary));
  transition:width 1200ms var(--ease);
}
.flash__bar-meta{display:flex;justify-content:space-between;margin-top:10px;font-size:12.5px;color:rgba(255,255,255,.6)}
.flash__visual{
  border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(255,255,255,.16);
}
.flash__visual img{width:100%;aspect-ratio:4/3;object-fit:cover;opacity:.94}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:28px;align-items:start}
.news-lead{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.news-lead:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(107,59,245,.35)}
.news-lead__media{overflow:hidden}
.news-lead__media img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform 320ms var(--ease)}
.news-lead:hover .news-lead__media img{transform:scale(1.04)}
.news-lead__body{padding:26px}
.news-lead__body h3{font-size:22px;margin:14px 0 10px;transition:color var(--t) var(--ease)}
.news-lead:hover .news-lead__body h3{color:var(--c-primary)}
.news-lead__body p{font-size:14.5px;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:14px;margin-top:16px;font-size:13px;color:var(--c-muted)}
.news-meta .num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

.news-list{display:flex;flex-direction:column}
.news-item{
  display:flex;gap:16px;padding:16px 12px;border-radius:12px;
  border-bottom:1px solid var(--c-line);
  transition:background-color var(--t) var(--ease);
}
.news-item:first-child{padding-top:0}
.news-item:last-child{border-bottom:0;padding-bottom:0}
.news-item:hover{background:var(--c-soft)}
.news-item__thumb{flex:0 0 auto;width:96px;height:72px;border-radius:10px;overflow:hidden;background:#EFEFEB}
.news-item__thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.news-item:hover .news-item__thumb img{transform:scale(1.04)}
.news-item__body{min-width:0;flex:1 1 auto}
.news-item__body h3{
  font-size:16px;font-weight:600;line-height:1.5;margin-bottom:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--t) var(--ease);
}
.news-item:hover .news-item__body h3{color:var(--c-primary)}
.news-item__body p{
  font-size:13.5px;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item__foot{display:flex;align-items:center;gap:12px;margin-top:10px}
.news-item__foot time{font-size:13px;color:var(--c-muted);font-family:var(--font-num);font-variant-numeric:tabular-nums}

.empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  padding:48px;background:var(--c-soft);border:1px dashed var(--c-line);border-radius:var(--r-card);
  text-align:center;color:var(--c-muted);font-size:14px;
}
.empty svg{color:#C9C9C2}
.news-more{display:flex;justify-content:center;margin-top:40px}

/* ============ 咨询表单 ============ */
.consult-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start}
.consult-points{margin-top:28px;display:flex;flex-direction:column;gap:18px}
.consult-points li{display:flex;gap:14px;align-items:flex-start}
.consult-points .pt-idx{
  flex:0 0 auto;width:28px;height:28px;border-radius:9px;
  background:rgba(107,59,245,.1);color:var(--c-primary-d);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:13px;font-weight:700;
}
.consult-points h3{font-size:16px;margin-bottom:4px}
.consult-points p{font-size:14px;color:var(--c-muted);line-height:1.75}

.form-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-1);
}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13px;font-weight:600;color:var(--c-muted)}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea{
  width:100%;background:#FBFBF8;border:1px solid var(--c-line);border-radius:var(--r-input);
  padding:0 14px;height:48px;font-size:15px;color:var(--c-ink);outline:none;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),background-color var(--t) var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.75;resize:vertical}
.field select{
  appearance:none;-webkit-appearance:none;padding-right:44px;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%237A7E88' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(107,59,245,.14);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--c-danger);box-shadow:0 0 0 3px rgba(229,72,77,.12)}
.field__err{display:none;font-size:13px;color:var(--c-danger);align-items:center;gap:6px}
.field.has-error .field__err{display:flex}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--c-muted);cursor:pointer;user-select:none}
.check input{position:absolute;opacity:0;width:0;height:0}
.check__box{
  flex:0 0 auto;width:18px;height:18px;border-radius:5px;border:1.5px solid var(--c-line);
  background:#fff;display:flex;align-items:center;justify-content:center;margin-top:3px;
  transition:all var(--t) var(--ease);
}
.check__box svg{opacity:0;transform:scale(.6);transition:opacity var(--t) var(--ease),transform var(--t) var(--ease);color:#fff}
.check input:checked + .check__box{background:var(--c-primary);border-color:var(--c-primary)}
.check input:checked + .check__box svg{opacity:1;transform:scale(1)}
.check input:focus-visible + .check__box{outline:2px solid var(--c-primary);outline-offset:2px}
.check.has-error .check__box{border-color:var(--c-danger)}
.form-notice{
  display:none;align-items:center;gap:10px;margin-bottom:16px;
  padding:12px 16px;border-radius:12px;font-size:14px;
}
.form-notice.is-ok{display:flex;background:rgba(20,224,168,.12);color:#0A7D60;border:1px solid rgba(20,224,168,.36)}
.form-notice.is-err{display:flex;background:rgba(229,72,77,.08);color:var(--c-danger);border:1px solid rgba(229,72,77,.3)}
.spinner{
  width:15px;height:15px;border-radius:50%;border:2px solid rgba(255,255,255,.4);
  border-top-color:#fff;animation:spin .7s linear infinite;display:none;
}
.btn.is-loading .spinner{display:block}
.btn.is-loading .arrow{display:none}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto;border-top:1px solid var(--c-line)}
.faq__item{border-bottom:1px solid var(--c-line)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color var(--t) var(--ease);
}
.faq__q:hover{color:var(--c-primary)}
.faq__icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;color:var(--c-primary);
}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);transition:transform var(--t) var(--ease),opacity var(--t) var(--ease);
}
.faq__icon::before{width:14px;height:2px}
.faq__icon::after{width:2px;height:14px}
.faq__item.is-open .faq__icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq__a{
  overflow:hidden;max-height:0;transition:max-height 300ms var(--ease);
}
.faq__a-inner{padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--c-muted);max-width:76ch}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#B9BBC4;position:relative}
.site-footer::before{
  content:"";position:absolute;inset:0;opacity:.04;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:18px 18px;
}
.footer-top{
  position:relative;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding:72px 0 48px;
}
.footer-brand .logo{color:#fff}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:#8E9199;max-width:30ch}
.footer-contact{margin-top:20px;display:flex;flex-direction:column;gap:8px;font-size:14px;color:#B9BBC4}
.footer-contact span{display:flex;align-items:center;gap:8px}
.footer-col h4{
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--c-primary);
  margin-bottom:18px;text-transform:uppercase;font-family:var(--font-num);
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{
  display:inline-block;font-size:14px;color:#9DA0A8;
  transition:color var(--t) var(--ease),transform var(--t) var(--ease);
}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  position:relative;border-top:1px solid rgba(20,224,168,.28);
  padding:22px 0 30px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
}
.footer-bottom p{font-size:13px;color:#7A7D86}
.footer-bottom .dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--c-mint);margin-right:8px;vertical-align:middle}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .nav-main{gap:0}
  .nav-link{padding:10px 10px;font-size:14.5px}
  .search-box{width:180px}
  .search-box:focus-within{width:240px}
}
@media (max-width:1023px){
  :root{--sec:72px}
  .nav-main{display:none}
  .burger{display:flex}
  .search-box{display:none}
  .nav-ghost{display:none}
  .hero__inner{grid-template-columns:1fr;gap:44px;padding:72px 0 64px}
  .hero__visual{padding:0 0 28px;max-width:560px}
  .hero__float{left:0;bottom:-14px}
  .grid-12{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col-7,.col-8,.col-6,.col-5,.col-4{grid-column:span 6}
  .channel-card--feature{flex-direction:column}
  .channel-card--feature .channel-card__body{padding:26px}
  .channel-card--feature .channel-card__media{flex:0 0 auto;width:100%}
  .channel-card--feature .channel-card__media img{aspect-ratio:16/9}
  .tiers{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tier--a,.tier--c{margin-top:0}
  .flash__inner{grid-template-columns:1fr;gap:32px;padding:64px 0}
  .news-grid{grid-template-columns:1fr}
  .consult-grid{grid-template-columns:1fr;gap:32px}
  .footer-top{grid-template-columns:1fr 1fr;gap:36px;padding:56px 0 40px}
  .cmp-wrap{display:none}
  .cmp-cards{display:flex}
  .sec-head{flex-direction:column;align-items:flex-start;gap:20px;margin-bottom:36px}
}
@media (max-width:767px){
  :root{--sec:56px}
  .container{padding:0 20px}
  .hero__stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 8px}
  .tiers{grid-template-columns:1fr}
  .grid-12{grid-template-columns:1fr}
  .col-7,.col-8,.col-6,.col-5,.col-4{grid-column:span 1}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:22px}
  .countdown{gap:6px}
  .cd-unit{min-width:56px}
  .cd-num{min-width:56px;padding:8px 6px}
  .cd-sep{padding-bottom:22px}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .news-item__thumb{width:80px;height:64px}
  .sec-more{padding:9px 16px;font-size:13.5px}
  .hero__float{position:static;width:100%;margin-top:16px}
}
@media (max-width:480px){
  .logo-text{font-size:15.5px}
  .hero h1 em{box-shadow:inset 0 -9px 0 rgba(107,59,245,.55)}
  .btn-lg{min-height:48px;padding:0 22px;font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --c-bg:#F5F5F2;
  --c-surface:#FFFFFF;
  --c-ink:#0B0C10;
  --c-ink-2:#3A3D46;
  --c-muted:#7A7E88;
  --c-line:#E7E7E2;
  --c-primary:#6B3BF5;
  --c-primary-d:#5529D8;
  --c-mint:#14E0A8;
  --c-lime:#FFD54A;
  --c-danger:#E5484D;
  --r-card:16px;
  --r-input:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,12,16,.06);
  --sh-2:0 12px 32px -12px rgba(107,59,245,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:180ms cubic-bezier(.22,.61,.36,1);
  --gap-sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.25;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
[hidden]{display:none !important}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:8px}
::selection{background:rgba(107,59,245,.18)}
.num,.meta-row,.stat-num,.time{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-sm{min-height:36px;padding:0 16px;font-size:14px}
.btn-lg{min-height:52px;padding:0 28px;font-size:16px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -12px rgba(107,59,245,.85)}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);background:var(--c-primary-d)}
.btn-ghost{background:transparent;border-color:var(--c-ink);color:var(--c-ink)}
.btn-ghost:hover{background:rgba(107,59,245,.08);border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline-primary{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-outline-primary:hover{background:rgba(107,59,245,.08);transform:translateY(-1px)}
.btn.is-disabled,.btn[disabled]{background:#EDEDE8;color:var(--c-muted);border-color:var(--c-line);cursor:not-allowed;box-shadow:none;transform:none}
.arrow{display:inline-block;transition:transform var(--t)}
.btn:hover .arrow{transform:translateX(2px)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,245,242,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled{background:rgba(245,245,242,.94);box-shadow:0 12px 30px -20px rgba(11,12,16,.45)}
.header-inner{display:flex;align-items:center;gap:22px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:.02em;white-space:nowrap}
.logo-mark{flex:0 0 auto}
.logo-text{white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-link{
  position:relative;padding:6px 0;
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  transition:color var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.nav-link:hover{color:var(--c-ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 12px;
  border-radius:var(--r-pill);background:#EFEFEB;border:1px solid transparent;
  transition:width var(--t),border-color var(--t),box-shadow var(--t),background var(--t);
}
.command-search:focus-within{width:320px;background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(107,59,245,.12)}
.command-search svg{flex:0 0 auto;color:var(--c-muted)}
.command-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;line-height:40px}
.command-search input::placeholder{color:var(--c-muted)}
.command-search kbd{
  flex:0 0 auto;font-size:11px;color:var(--c-muted);background:#fff;
  border:1px solid var(--c-line);border-radius:6px;padding:1px 6px;line-height:1.6;
}
.link-quiet{font-size:14px;color:var(--c-ink-2);transition:color var(--t)}
.link-quiet:hover{color:var(--c-primary)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;background:#fff;border:1px solid var(--c-line);
  cursor:pointer;transition:border-color var(--t),box-shadow var(--t);
}
.nav-toggle:hover{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(107,59,245,.10)}
.nav-toggle i{position:relative;display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle i::before,.nav-toggle i::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:80;background:#fff;
  padding:28px 24px 36px;overflow-y:auto;
  display:flex;flex-direction:column;gap:6px;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;
  font-size:20px;line-height:1;color:var(--c-ink);cursor:pointer;
}
.drawer-link{
  opacity:0;transform:translateY(14px);
  padding:16px 4px;font-size:17px;font-weight:600;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
  animation:drawerIn 320ms var(--ease) forwards;
}
.drawer-link.is-active{color:var(--c-primary)}
.drawer-search{display:flex;align-items:center;gap:10px;height:48px;margin-top:20px;padding:0 16px;border-radius:var(--r-pill);background:#EFEFEB}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:15px}
.drawer-cta{margin-top:16px}
@keyframes drawerIn{to{opacity:1;transform:translateY(0)}}

/* ============ 文章头部 ============ */
.article-head{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:22px 0 0;font-size:13px;color:var(--c-muted)}
.breadcrumb a{transition:color var(--t)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C6C8CE}
.breadcrumb .current{max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--c-ink-2)}
.article-head-inner{padding:20px 0 40px;max-width:860px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.badge-mint{background:rgba(20,224,168,.10);color:#0E8E6C;border:1px solid rgba(20,224,168,.32)}
.badge-lime{background:rgba(255,213,74,.18);color:#7A5A00;border:1px solid rgba(255,213,74,.55)}
.badge-gray{background:#EFEFEB;color:var(--c-ink-2);border:1px solid var(--c-line)}
.article-head h1{margin:18px 0 0;font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1.2}
.article-head .lede{margin-top:16px;font-size:16px;color:var(--c-ink-2);max-width:70ch}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px;font-size:13px;color:var(--c-muted)}
.meta-row .bar{width:1px;height:12px;background:var(--c-line);display:inline-block}

/* ============ 主体布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:56px;align-items:start;padding:52px 0 var(--gap-sec);
}
.article-main{min-width:0}

/* 正文排版 */
.article-content{max-width:760px;font-size:17px;line-height:1.9;color:var(--c-ink-2)}
.article-content > *:first-child{margin-top:0}
.article-content > * + *{margin-top:18px}
.article-content h2{font-size:24px;font-weight:700;margin:48px 0 16px;scroll-margin-top:96px}
.article-content h3{font-size:20px;font-weight:700;margin:32px 0 12px;scroll-margin-top:96px}
.article-content h4{font-size:17px;font-weight:700;margin:24px 0 10px}
.article-content p{margin:18px 0}
.article-content a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;transition:color var(--t)}
.article-content a:hover{color:var(--c-primary-d)}
.article-content strong{color:var(--c-ink);font-weight:700}
.article-content img{width:100%;height:auto;border-radius:14px;margin:26px 0}
.article-content figure{margin:26px 0}
.article-content figcaption{margin-top:10px;font-size:13px;color:var(--c-muted);text-align:center}
.article-content ul{list-style:none;padding:0;margin:18px 0}
.article-content ul > li{position:relative;padding-left:22px;margin:10px 0}
.article-content ul > li::before{
  content:"";position:absolute;left:0;top:.66em;width:8px;height:8px;border-radius:2px;
  background:var(--c-primary);
}
.article-content ol{padding-left:24px;margin:18px 0}
.article-content ol > li{margin:10px 0;padding-left:4px}
.article-content ol > li::marker{color:var(--c-primary);font-weight:700}
.article-content blockquote{
  margin:26px 0;padding:18px 22px;
  border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;
  background:rgba(107,59,245,.04);color:var(--c-ink-2);
}
.article-content blockquote p{margin:8px 0}
.article-content table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-content th,.article-content td{padding:12px 14px;border-bottom:1px solid var(--c-line);text-align:left}
.article-content th{background:#FAFAF7;color:var(--c-ink);font-weight:600}
.article-content hr{border:0;border-top:1px solid var(--c-line);width:40%;margin:44px auto}
.article-content code{background:#F1F0FA;color:var(--c-primary-d);padding:2px 6px;border-radius:6px;font-size:.92em}
.article-content pre{
  background:var(--c-ink);color:#EDEBFF;padding:18px 20px;border-radius:14px;
  overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-content pre code{background:transparent;color:inherit;padding:0}
.article-content mark{background:rgba(107,59,245,.12);color:var(--c-ink);padding:0 2px;border-radius:4px}

/* 正文内 CTA 条 */
.inline-cta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  max-width:760px;margin:40px 0 0;padding:20px 24px;
  border:1px solid rgba(107,59,245,.30);border-radius:var(--r-card);
  background:rgba(107,59,245,.05);
}
.inline-cta p{font-size:15px;color:var(--c-ink)}
.inline-cta span{display:block;font-size:13px;color:var(--c-muted);margin-top:4px}

/* 标签组 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;max-width:760px}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-pill);font-size:14px;font-weight:500;
  background:rgba(20,224,168,.10);color:#0E8E6C;border:1px solid rgba(20,224,168,.30);
  transition:background var(--t),border-color var(--t),transform var(--t);
}
.chip:hover{background:rgba(20,224,168,.20);border-color:rgba(20,224,168,.5);transform:translateY(-1px)}

/* 相关推荐 */
.related{margin-top:56px;padding-top:36px;border-top:1px solid var(--c-line);max-width:760px}
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px}
.block-head h2{font-size:22px}
.block-head .eyebrow{display:block;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--c-primary);margin-bottom:6px}
.related-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:22px}
.related-card{
  display:flex;gap:12px;padding:12px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:14px;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(107,59,245,.35)}
.related-card img{width:88px;height:66px;flex:0 0 auto;object-fit:cover;border-radius:10px}
.related-card h3{font-size:15px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t)}
.related-card:hover h3{color:var(--c-primary)}
.related-card .time{display:block;margin-top:8px;font-size:12px;color:var(--c-muted)}

/* 上一篇下一篇 */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:36px;max-width:760px}
.post-nav a,.post-nav span{
  display:flex;flex-direction:column;gap:6px;
  padding:16px 20px;border-radius:14px;border:1px solid var(--c-line);background:var(--c-surface);
  font-size:14px;color:var(--c-ink);transition:border-color var(--t),transform var(--t),box-shadow var(--t);
}
.post-nav a:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-2)}
.post-nav em{font-style:normal;font-size:12px;color:var(--c-muted)}
.post-nav .is-disabled{color:var(--c-muted);background:#F1F1EC;border-style:dashed;cursor:not-allowed}
.back-row{margin-top:28px;max-width:760px}

/* 空态 */
.empty-state{
  display:grid;place-items:center;gap:14px;text-align:center;
  max-width:760px;padding:48px 24px;
  background:#F1F1EC;border:1px dashed var(--c-line);border-radius:var(--r-card);
}
.empty-state svg{color:#B9BCD8}
.empty-state p{font-size:14px;color:var(--c-muted);max-width:40ch}
.empty-state .actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:92px;display:grid;gap:20px;align-content:start}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1)}
.side-title{font-size:14px;font-weight:700;color:var(--c-ink);letter-spacing:.04em}
.toc-list{display:grid;gap:2px;margin-top:12px;max-height:330px;overflow:auto}
.toc-list a{
  display:block;padding:6px 0 6px 12px;font-size:14px;line-height:1.55;color:var(--c-ink-2);
  border-left:2px solid transparent;transition:color var(--t),border-color var(--t),background var(--t);
}
.toc-list a:hover{color:var(--c-primary);background:rgba(107,59,245,.05)}
.toc-list a.is-current{color:var(--c-primary);border-left-color:var(--c-primary);font-weight:600}
.side-links{list-style:none;padding:0;margin:12px 0 0;display:grid;gap:2px}
.side-links a{
  display:block;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--c-ink-2);
  transition:background var(--t),color var(--t),transform var(--t);
}
.side-links a:hover{background:#FAFAF7;color:var(--c-primary);transform:translateX(2px)}
.side-cta{background:rgba(107,59,245,.06);border-color:rgba(107,59,245,.26)}
.side-cta .side-text{margin-top:10px;font-size:14px;color:var(--c-ink-2);line-height:1.75}
.side-cta .btn{width:100%;margin-top:16px}

/* 入场 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);background-image:radial-gradient(rgba(255,255,255,.04) 1px,transparent 1px);background-size:4px 4px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-top:64px;padding-bottom:40px}
.footer-brand .logo{color:#fff}
.footer-brand p{margin-top:16px;max-width:34ch;font-size:14px;line-height:1.85;color:rgba(255,255,255,.64)}
.footer-contact{display:grid;gap:6px;margin-top:18px;font-size:13px;color:rgba(255,255,255,.55)}
.footer-col h4{color:var(--c-mint);font-size:14px;font-weight:700;letter-spacing:.06em;margin-bottom:14px}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-col a{display:inline-block;font-size:14px;color:rgba(255,255,255,.70);transition:color var(--t),transform var(--t)}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding-top:20px;padding-bottom:32px;
  border-top:1px solid rgba(20,224,168,.35);
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--c-mint);margin-right:8px;vertical-align:middle}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .command-search{width:180px}
  .command-search:focus-within{width:240px}
}
@media (max-width:1023px){
  :root{--gap-sec:72px}
  .nav-main,.command-search,.link-quiet{display:none}
  .nav-toggle{display:inline-flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;padding-top:40px}
  .article-side{position:static}
  .related-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--gap-sec:56px}
  .container{padding:0 20px}
  .header-inner{height:60px;gap:12px}
  .logo{font-size:15px}
  .article-head-inner{padding:16px 0 32px}
  .article-head h1{margin-top:14px}
  .article-content{font-size:16.5px;line-height:1.86}
  .article-content h2{font-size:21px;margin-top:38px}
  .article-content h3{font-size:18px;margin-top:26px}
  .related-list{grid-template-columns:minmax(0,1fr)}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .footer-top{grid-template-columns:minmax(0,1fr);gap:28px;padding-top:48px}
  .inline-cta{flex-direction:column;align-items:flex-start}
  .inline-cta .btn{width:100%}
}
@media (max-width:480px){
  .logo-text{max-width:11ch;overflow:hidden;text-overflow:ellipsis}
  .breadcrumb .current{max-width:22ch}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --c-bg:#F5F5F2;
  --c-surface:#FFFFFF;
  --c-ink:#0B0C10;
  --c-ink-2:#3A3D46;
  --c-muted:#7A7E88;
  --c-line:#E7E7E2;
  --c-primary:#6B3BF5;
  --c-primary-d:#5529D8;
  --c-mint:#14E0A8;
  --c-lime:#FFD54A;
  --c-danger:#E5484D;
  --r-card:16px;
  --r-field:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,12,16,.06);
  --sh-2:0 12px 32px -12px rgba(107,59,245,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:180ms;
  --sec-gap:96px;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.25}
h1{font-size:clamp(30px,4.2vw,46px);font-weight:800;line-height:1.14}
h2{font-size:clamp(24px,3vw,32px)}
h3{font-size:20px}
p{margin:0}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--c-primary-d)}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
::selection{background:rgba(107,59,245,.18)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  padding:0 22px;height:44px;min-height:44px;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),
             transform var(--dur) var(--ease);
}
.btn .arrow{transition:transform var(--dur) var(--ease);font-size:14px}
.btn:hover .arrow{transform:translateX(2px)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px -10px rgba(107,59,245,.75)}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary:active{background:#48219f;transform:translateY(0)}
.btn-ghost{border-color:var(--c-ink);color:var(--c-ink);background:transparent}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-d);background:rgba(107,59,245,.08)}
.btn-ghost-light{border-color:rgba(255,255,255,.6);color:#fff;background:transparent}
.btn-ghost-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.12)}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-sm{height:36px;min-height:36px;padding:0 16px;font-size:14px}
.btn:disabled,.btn.is-disabled{opacity:.55;cursor:not-allowed;box-shadow:none;transform:none}
.btn-text{padding:0;height:auto;min-height:44px;color:var(--c-primary);border:0;background:none}
.btn-text:hover{color:var(--c-primary-d);text-decoration:underline}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:var(--r-pill);font-size:13px;font-weight:600;line-height:1}
.badge-mint{background:rgba(20,224,168,.14);color:#0B7F62}
.badge-lime{background:rgba(255,213,74,.28);color:#6E5200}
.badge-grey{background:#EFEFEB;color:var(--c-muted)}
.badge-line{border:1px solid rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.12)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,245,242,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.site-header.is-scrolled{background:rgba(245,245,242,.92);box-shadow:0 10px 26px -20px rgba(11,12,16,.6)}
.header-inner{display:flex;align-items:center;gap:22px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink)}
.logo:hover{color:var(--c-ink)}
.logo-mark{flex:0 0 28px}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:22px;margin-left:6px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:6px 0;white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--c-ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
.cmd-search{position:relative;display:flex;align-items:center;width:220px;transition:width var(--dur) var(--ease)}
.cmd-search:focus-within{width:320px}
.cmd-search input{
  width:100%;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#EFEFEB;
  padding:0 62px 0 38px;font-size:14px;color:var(--c-ink);
  transition:border-color var(--dur) var(--ease),background-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.cmd-search input::placeholder{color:var(--c-muted)}
.cmd-search input:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(107,59,245,.16)}
.search-icon{position:absolute;left:14px;width:15px;height:15px;pointer-events:none;color:var(--c-muted)}
.cmd-search kbd{
  position:absolute;right:10px;font-size:11px;line-height:1;color:var(--c-muted);
  border:1px solid var(--c-line);border-radius:6px;padding:4px 6px;background:#fff;
  font-family:inherit;
}
.header-login{font-size:15px;font-weight:500;color:var(--c-ink-2);white-space:nowrap}
.header-login:hover{color:var(--c-primary)}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.menu-toggle:hover{border-color:var(--c-primary);box-shadow:var(--sh-1)}
.menu-toggle span{width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  transform:translateY(-10px);opacity:0;pointer-events:none;
  transition:opacity 220ms var(--ease),transform 220ms var(--ease);
  overflow-y:auto;
}
.drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:68px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);font-size:20px;line-height:1;color:var(--c-ink);background:#fff}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer-body{padding:28px 24px 40px;display:grid;gap:22px}
.drawer-search{position:relative}
.drawer-search input{width:100%;height:48px;border-radius:var(--r-field);border:1px solid var(--c-line);background:#FBFBF8;padding:0 16px 0 42px;font-size:15px}
.drawer-search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(107,59,245,.16)}
.drawer-nav{display:grid;gap:6px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;border-bottom:1px solid var(--c-line);
  font-size:17px;font-weight:600;color:var(--c-ink);
  opacity:0;transform:translateY(10px);
}
.drawer.is-open .drawer-link{opacity:1;transform:none;transition:opacity 320ms var(--ease),transform 320ms var(--ease)}
.drawer.is-open .drawer-link:nth-child(1){transition-delay:60ms}
.drawer.is-open .drawer-link:nth-child(2){transition-delay:110ms}
.drawer.is-open .drawer-link:nth-child(3){transition-delay:160ms}
.drawer.is-open .drawer-link:nth-child(4){transition-delay:210ms}
.drawer.is-open .drawer-link:nth-child(5){transition-delay:260ms}
.drawer-link:hover{color:var(--c-primary)}
.drawer-link.is-active{color:var(--c-primary)}
.drawer-link .chev{color:var(--c-muted);font-size:16px}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;
  display:flex;align-items:flex-end;
  min-height:290px;padding:56px 0 42px;
  color:#fff;
  background:#0B0C10 url("/assets/images/backpic/back-1.png") center/cover no-repeat;
}
.cat-hero::before{content:"";position:absolute;inset:0;background:rgba(11,12,16,.7)}
.cat-hero .container{position:relative;z-index:1}
.breadcrumb{font-size:13px;color:rgba(255,255,255,.72);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .sep{opacity:.6}
.breadcrumb .current{color:#fff}
.cat-hero h1{margin-top:16px;color:#fff;max-width:20ch}
.cat-hero .hero-sub{margin-top:14px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.86);max-width:62ch}
.hero-chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.hero-chips .badge{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.34);color:#fff}

/* ---------- layout ---------- */
.cat-layout{
  display:grid;
  grid-template-columns:264px minmax(0,1fr);
  gap:48px;
  align-items:start;
  padding:64px 0 72px;
}
.toc{position:sticky;top:92px;align-self:start;display:grid;gap:20px}
.toc-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1)}
.toc-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-muted);text-transform:uppercase}
.toc-list{margin-top:12px;display:grid;gap:2px}
.toc-link{
  display:block;padding:9px 0 9px 14px;border-left:2px solid transparent;
  font-size:14.5px;color:var(--c-ink-2);line-height:1.6;
  transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.toc-link:hover{color:var(--c-ink);background:rgba(107,59,245,.05)}
.toc-link.is-active{color:var(--c-primary);border-left-color:var(--c-primary);font-weight:600}
.toc-help{background:linear-gradient(180deg,#fff,#F4F1FE);border:1px solid rgba(107,59,245,.22);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1)}
.toc-help h4{font-size:16px;margin-bottom:8px}
.toc-help p{font-size:13.5px;line-height:1.75;color:var(--c-muted)}
.toc-help .btn{margin-top:16px;width:100%}

/* ---------- chapters ---------- */
.content{min-width:0}
.chapter{padding-bottom:40px;margin-bottom:40px;border-bottom:1px solid var(--c-line)}
.chapter:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:8px}
.chapter-head{display:flex;gap:18px;align-items:baseline;margin-bottom:16px}
.chapter-num{
  font-size:clamp(34px,4vw,52px);font-weight:800;line-height:1;
  color:rgba(107,59,245,.24);letter-spacing:-.02em;font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.chapter-body p{font-size:17px;line-height:1.9;color:var(--c-ink-2);margin-bottom:18px}
.chapter-body p:last-child{margin-bottom:0}
.chapter-body strong{color:var(--c-ink)}
.hl{color:var(--c-ink);font-weight:600;box-shadow:inset 0 -10px 0 rgba(107,59,245,.12)}

.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:24px 0 4px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(107,59,245,.3)}
.card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.card p{font-size:14.5px;line-height:1.8;color:var(--c-muted)}
.card .badge{margin-bottom:12px}

.steps{counter-reset:step;display:grid;gap:14px;margin:24px 0 4px}
.steps li{
  counter-increment:step;position:relative;
  padding:16px 20px 16px 62px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:14px;
  box-shadow:var(--sh-1);font-size:15.5px;line-height:1.8;color:var(--c-ink-2);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.steps li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:20px;top:16px;
  font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;font-size:15px;
}
.steps li:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(107,59,245,.3)}

.list-square{display:grid;gap:12px;margin:22px 0 4px}
.list-square li{position:relative;padding-left:24px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2)}
.list-square li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;
  background:var(--c-primary);
}
.list-square li strong{color:var(--c-ink)}

.callout{
  border-left:3px solid var(--c-primary);background:rgba(107,59,245,.05);
  border-radius:0 14px 14px 0;padding:18px 22px;margin:24px 0 4px;
  font-size:15px;line-height:1.85;color:var(--c-ink-2);
}
.callout .callout-label{display:inline-block;font-size:13px;font-weight:700;color:var(--c-primary);margin-bottom:6px}

.figure{margin:26px 0 4px}
.figure img{
  width:100%;border-radius:14px;border:1px solid var(--c-line);
  aspect-ratio:16/9;object-fit:cover;background:#EFEAFE;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.figure img:hover{transform:scale(1.01);box-shadow:var(--sh-2)}
.figure figcaption{margin-top:10px;font-size:13px;color:var(--c-muted);line-height:1.7}

/* ---------- FAQ ---------- */
.faq-block{margin-top:8px}
.faq-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:8px}
.faq-head .label{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--c-primary);text-transform:uppercase}
.faq-head h2{margin-top:8px}
.faq{border-top:1px solid var(--c-line);margin-top:16px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.faq-icon::before{left:0;right:0;top:9px;height:2px}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{overflow:hidden;max-height:0;transition:max-height 320ms var(--ease)}
.faq-a p{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--c-ink-2);max-width:66ch}

/* ---------- CTA bar ---------- */
.cta-bar{
  margin-top:8px;padding:30px 34px;border-radius:20px;
  background:linear-gradient(180deg,#FFFFFF,#F3F0FE);
  border:1px solid rgba(107,59,245,.24);
  box-shadow:var(--sh-1);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px)}
.cta-bar p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--c-muted);max-width:56ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{position:relative;margin-top:var(--sec-gap);background:var(--c-ink);color:rgba(255,255,255,.72);overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;opacity:.04;pointer-events:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3'/></filter><rect width='120' height='120' filter='url(/%23n)'/></svg>");
}
.footer-top{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.5fr .8fr .8fr .8fr;gap:40px;
  padding-top:56px;padding-bottom:40px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:40ch}
.footer-contact{margin-top:18px;display:grid;gap:6px}
.footer-contact span{font-size:13.5px;color:rgba(255,255,255,.6)}
.footer-col h4{font-size:14px;font-weight:700;color:#A98BFF;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:11px}
.footer-col a{
  display:inline-block;font-size:14px;color:rgba(255,255,255,.72);
  transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border-top:1px solid rgba(20,224,168,.35);
  padding-top:18px;padding-bottom:28px;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.55);display:flex;align-items:center;gap:8px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-mint);display:inline-block;flex:0 0 8px}

/* ---------- reveal ---------- */
.js-on [data-reveal]{opacity:0;transform:translateY(12px)}
.js-on [data-reveal].is-in{
  opacity:1;transform:none;
  transition:opacity 520ms var(--ease),transform 520ms var(--ease);
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .cmd-search{width:180px}
  .cmd-search:focus-within{width:260px}
  .nav-main{gap:18px}
}
@media (max-width:1023px){
  .nav-main,.cmd-search,.header-login{display:none}
  .menu-toggle{display:flex}
  .cat-layout{grid-template-columns:1fr;gap:32px;padding:44px 0 56px}
  .toc{position:static;top:auto}
  .toc-list{display:flex;gap:10px;overflow-x:auto;padding:4px 0 8px;scrollbar-width:thin}
  .toc-list li{flex:0 0 auto}
  .toc-link{
    border-left:0;border:1px solid var(--c-line);border-radius:var(--r-pill);
    padding:8px 14px;white-space:nowrap;font-size:14px;background:#fff;
  }
  .toc-link.is-active{border-color:var(--c-primary);background:rgba(107,59,245,.08)}
  .toc-help{display:none}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .chapter-head{gap:12px}
  .chapter-body p{font-size:16px}
  .entry-grid{grid-template-columns:1fr}
  .cat-hero{min-height:240px;padding:44px 0 32px}
  .cat-hero .hero-sub{font-size:15.5px}
  .cta-bar{padding:24px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-top{grid-template-columns:1fr;padding-top:44px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .steps li{padding:16px 16px 16px 56px}
  .steps li::before{left:16px}
}
@media (max-width:480px){
  .logo-text{font-size:15.5px}
  .hero-chips{gap:8px}
  .chapter-num{font-size:32px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none !important;transition:none !important}
  .js-on [data-reveal]{opacity:1;transform:none}
}

/* roulang page: category2 */
/* ===================== 设计变量 ===================== */
:root{
  --c-bg:#F5F5F2;
  --c-surface:#FFFFFF;
  --c-ink:#0B0C10;
  --c-ink-2:#3A3D46;
  --c-muted:#7A7E88;
  --c-line:#E7E7E2;
  --c-primary:#6B3BF5;
  --c-primary-d:#5529D8;
  --c-mint:#14E0A8;
  --c-lime:#FFD54A;
  --c-danger:#E5484D;

  --r-card:16px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;

  --sh-1:0 1px 2px rgba(11,12,16,.06);
  --sh-2:0 12px 32px -12px rgba(107,59,245,.28);

  --t:180ms;
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:68px;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
img{height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:8px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ===================== 容器与区块 ===================== */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--c-surface)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-head__text{max-width:720px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--c-primary);margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-primary);border-radius:2px}
.section-head h2{
  font-size:clamp(26px,3.2vw,36px);
  line-height:1.25;font-weight:800;color:var(--c-ink);letter-spacing:.005em;
}
.section-lead{margin-top:12px;font-size:15px;color:var(--c-muted);max-width:660px}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:600;line-height:1;
  white-space:nowrap;cursor:pointer;
  transition:background var(--t) var(--ease),color var(--t) var(--ease),
             box-shadow var(--t) var(--ease),border-color var(--t) var(--ease),
             transform var(--t) var(--ease);
}
.btn .i-arrow{transition:transform var(--t) var(--ease)}
.btn-primary{background:var(--c-primary);color:#fff;height:44px;padding:0 22px;font-size:15px;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-d);box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary:hover .i-arrow{transform:translateX(2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border:1px solid var(--c-line);color:var(--c-ink);height:44px;padding:0 22px;font-size:15px}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(107,59,245,.06)}
.btn-ghost:hover .i-arrow{transform:translateX(2px)}
.btn-light{background:#fff;color:var(--c-ink);height:44px;padding:0 22px;font-size:15px}
.btn-light:hover{background:#F1EDFF;color:var(--c-primary-d)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-lg{height:52px;padding:0 28px;font-size:15px}
.btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}
.text-link{font-size:15px;font-weight:500;color:var(--c-ink-2);transition:color var(--t) var(--ease)}
.text-link:hover{color:var(--c-primary)}

/* ===================== 顶部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,245,242,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t) var(--ease),background var(--t) var(--ease);
}
.site-header.is-scrolled{background:rgba(245,245,242,.92);box-shadow:0 12px 30px -22px rgba(11,12,16,.5)}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--header-h)}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-text{font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:.01em;white-space:nowrap}
.logo-mark{flex:none}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;padding:8px 12px;font-size:15px;font-weight:500;
  color:var(--c-ink-2);border-radius:10px;transition:color var(--t) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--t) var(--ease);
}
.nav-link:hover{color:var(--c-ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 12px;
  background:#EFEFEB;border:1px solid transparent;border-radius:var(--r-pill);
  transition:width var(--t) var(--ease),background var(--t) var(--ease),
             border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.command-search:focus-within{width:320px;background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(107,59,245,.14)}
.command-search svg{flex:none;color:var(--c-muted)}
.command-search input{flex:1;min-width:0;border:0;background:transparent;font-size:14px;outline:none;color:var(--c-ink)}
.command-search input::placeholder{color:var(--c-muted)}
.command-search kbd{
  font-size:11px;font-family:inherit;color:var(--c-muted);
  background:#fff;border:1px solid var(--c-line);border-radius:6px;padding:1px 6px;line-height:1.5;
}
.menu-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--c-line);border-radius:12px;background:#fff;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* ===================== 移动抽屉 ===================== */
.drawer{
  position:fixed;inset:0;z-index:80;background:#fff;
  display:flex;flex-direction:column;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform 260ms var(--ease),opacity 200ms var(--ease);
}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:68px;padding:0 20px;border-bottom:1px solid var(--c-line);flex:none}
.drawer-close{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--c-line);border-radius:12px}
.drawer-body{padding:24px 20px 40px;display:flex;flex-direction:column;gap:16px;overflow-y:auto}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  padding:16px 4px;font-size:17px;font-weight:600;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
  opacity:0;transform:translateY(10px);
  transition:opacity 260ms var(--ease),transform 260ms var(--ease),color var(--t) var(--ease);
}
.drawer.is-open .drawer-nav a{opacity:1;transform:translateY(0)}
.drawer.is-open .drawer-nav a:nth-child(1){transition-delay:60ms}
.drawer.is-open .drawer-nav a:nth-child(2){transition-delay:100ms}
.drawer.is-open .drawer-nav a:nth-child(3){transition-delay:140ms}
.drawer.is-open .drawer-nav a:nth-child(4){transition-delay:180ms}
.drawer.is-open .drawer-nav a:nth-child(5){transition-delay:220ms}
.drawer-nav a.is-active{color:var(--c-primary)}
.drawer-search{width:100%;height:48px}
.drawer-search:focus-within{width:100%}
body.is-locked{overflow:hidden}

/* ===================== 分类页 Hero ===================== */
.cat-hero{
  position:relative;overflow:hidden;color:#fff;
  min-height:300px;display:flex;align-items:flex-end;
  padding:72px 0 48px;
  background:#0B0C10 url("/assets/images/backpic/back-1.png") center/cover no-repeat;
}
.cat-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,12,16,.42) 0%,rgba(11,12,16,.72) 100%)}
.cat-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.72);transition:color var(--t) var(--ease)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:#fff}
.cat-hero h1{
  font-size:clamp(30px,4.6vw,46px);line-height:1.16;font-weight:800;
  color:#fff;letter-spacing:.005em;max-width:900px;
}
.cat-hero p{margin-top:16px;font-size:16px;color:rgba(255,255,255,.82);max-width:680px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);font-size:13px;font-weight:500;
  color:#fff;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(6px);
}

/* ===================== 筛选胶囊 ===================== */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:22px 0;border-bottom:1px solid var(--c-line);
}
.filter-label{font-size:13px;color:var(--c-muted);margin-right:4px}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;
  border-radius:var(--r-pill);font-size:14px;font-weight:500;
  color:var(--c-ink-2);background:#fff;border:1px solid var(--c-line);
  transition:all var(--t) var(--ease);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(107,59,245,.06)}
.chip.is-active{background:var(--c-ink);border-color:var(--c-ink);color:#fff}

/* ===================== 对比表 ===================== */
.compare-shell{position:relative}
.table-wrap{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.compare-table{width:100%;font-size:15px;min-width:760px}
.compare-table thead th{
  position:sticky;top:var(--header-h);z-index:3;
  background:#FAFAF7;color:var(--c-ink);
  font-size:14px;font-weight:700;text-align:left;
  height:56px;padding:0 20px;
  border-bottom:1px solid var(--c-line);
  white-space:nowrap;
}
.compare-table thead th:first-child{
  left:0;z-index:4;border-radius:var(--r-card) 0 0 0;
}
.compare-table thead th:last-child{border-radius:0 var(--r-card) 0 0}
.compare-table tbody th{
  position:sticky;left:0;z-index:2;
  background:var(--c-surface);
  font-size:15px;font-weight:600;color:var(--c-ink);text-align:left;
  padding:16px 20px;min-width:190px;
  border-bottom:1px solid var(--c-line);
}
.compare-table tbody td{
  padding:16px 20px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);
  min-width:170px;
}
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody th:first-child{border-radius:0 0 0 var(--r-card)}
.compare-table tbody tr:last-child td:last-child{border-radius:0 0 var(--r-card) 0}
.compare-table tbody tr:hover th,
.compare-table tbody tr:hover td{background:#FAFAF7}
.compare-table tbody tr:hover td.col-rec{background:#F1EDFF}

.col-rec{background:rgba(107,59,245,.06)}
thead th.col-rec{background:#F1EDFF}
.col-rec-head{display:flex;align-items:center;gap:8px}
.rec-badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;
  font-size:11px;font-weight:700;letter-spacing:.06em;
  color:#fff;background:var(--c-primary);border-radius:var(--r-pill);
}
.cell-ok{display:inline-flex;align-items:center;gap:8px;font-weight:500;color:var(--c-ink)}
.cell-ok::before{
  content:"";width:16px;height:16px;flex:none;border-radius:50%;
  background:rgba(20,224,168,.18);
  box-shadow:inset 0 0 0 1px rgba(20,224,168,.55);
}
.cell-mid{display:inline-flex;align-items:center;gap:8px;color:var(--c-ink-2)}
.cell-mid::before{
  content:"";width:16px;height:16px;flex:none;border-radius:50%;
  background:rgba(107,59,245,.1);
  box-shadow:inset 0 0 0 1px rgba(107,59,245,.35);
}
.cell-miss{display:inline-flex;align-items:center;gap:8px;color:var(--c-muted)}
.cell-miss::before{content:"";width:14px;height:2px;border-radius:2px;background:#CFCFC9}
.table-note{margin-top:16px;font-size:13px;color:var(--c-muted)}

/* ===================== 推荐卡（错位阶梯） ===================== */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.tier-card{
  position:relative;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px 24px 24px;
  box-shadow:var(--sh-1);
  transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.tier-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(107,59,245,.35)}
.tier-card::before{
  content:"";position:absolute;left:24px;right:24px;top:0;height:3px;border-radius:0 0 3px 3px;
  background:var(--c-line);
}
.tier-card--1{margin-top:28px}
.tier-card--2{
  margin-top:0;border-color:rgba(107,59,245,.45);
  box-shadow:0 16px 40px -22px rgba(107,59,245,.55);
}
.tier-card--2::before{background:linear-gradient(90deg,var(--c-primary),var(--c-mint))}
.tier-card--3{margin-top:52px}
.tier-index{font-size:40px;font-weight:800;line-height:1;color:rgba(107,59,245,.18);letter-spacing:-.02em}
.tier-card h3{margin-top:12px;font-size:20px;font-weight:700;color:var(--c-ink)}
.tier-sub{margin-top:8px;font-size:14px;color:var(--c-muted);min-height:44px}
.tier-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.tier-list li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2);line-height:1.7}
.tier-list li::before{
  content:"";width:8px;height:8px;flex:none;margin-top:9px;border-radius:2px;
  background:rgba(107,59,245,.20);box-shadow:inset 0 0 0 1px rgba(107,59,245,.5);
}
.tier-card .btn{margin-top:24px;width:100%}
.corner-badge{
  position:absolute;top:-12px;right:20px;
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.04em;
  color:#063B2C;background:var(--c-mint);
  box-shadow:0 8px 18px -10px rgba(20,224,168,.9);
}

/* ===================== 数据指标条 ===================== */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--c-line);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.metric{background:var(--c-surface);padding:28px 24px}
.metric-num{font-size:clamp(30px,3.4vw,44px);font-weight:800;line-height:1.1;color:var(--c-ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.metric-num em{font-style:normal;font-size:16px;font-weight:600;color:var(--c-muted);margin-left:4px}
.metric-label{margin-top:10px;font-size:13px;color:var(--c-muted)}
.metric-desc{margin-top:6px;font-size:13px;color:var(--c-ink-2)}

/* ===================== 配置流程 ===================== */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.flow-item{
  position:relative;padding:28px 24px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);border-left:3px solid var(--c-primary);
  box-shadow:var(--sh-1);transition:transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.flow-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.flow-num{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--c-primary)}
.flow-item h3{margin-top:12px;font-size:19px;font-weight:700;color:var(--c-ink)}
.flow-item p{margin-top:10px;font-size:14px;color:var(--c-ink-2)}
.flow-item .flow-time{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--c-muted)}

/* ===================== 图文区块 ===================== */
.figure-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.figure-media{position:relative;border-radius:var(--r-card);overflow:hidden;background:rgba(107,59,245,.10)}
.figure-media img{width:100%;height:100%;object-fit:cover;border-radius:var(--r-card);transition:transform 400ms var(--ease)}
.figure-media:hover img{transform:scale(1.04)}
.figure-caption{margin-top:12px;font-size:13px;color:var(--c-muted)}
.check-list{display:flex;flex-direction:column;gap:16px;margin-top:28px}
.check-list li{display:flex;gap:14px;align-items:flex-start}
.check-icon{
  width:26px;height:26px;flex:none;border-radius:8px;margin-top:2px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(107,59,245,.10);color:var(--c-primary);
}
.check-list strong{display:block;font-size:15px;font-weight:700;color:var(--c-ink)}
.check-list span{font-size:14px;color:var(--c-muted)}

/* ===================== FAQ ===================== */
.faq{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color var(--t) var(--ease);
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{position:relative;width:20px;height:20px;flex:none}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform var(--t) var(--ease),opacity var(--t) var(--ease);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease)}
.faq-a p{padding:0 48px 24px 4px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}
.faq-item.is-open .faq-a{max-height:420px}

/* ===================== CTA 通栏 ===================== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-ink);color:#fff;
  border-radius:24px;
  padding:56px 48px;
  display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(107,59,245,.55),transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(24px,3vw,32px);font-weight:800;line-height:1.3;color:#fff}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.72);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;justify-content:flex-end}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);margin-top:96px;position:relative;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;opacity:.04;pointer-events:none;
  background-image:radial-gradient(#fff 1px,transparent 1px);
  background-size:14px 14px;
}
.footer-top{position:relative;z-index:1;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:72px 24px 48px}
.footer-brand .logo{margin-bottom:18px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;max-width:340px}
.footer-contact{display:flex;flex-direction:column;gap:8px;margin-top:20px;font-size:13px;color:rgba(255,255,255,.55);font-variant-numeric:tabular-nums}
.footer-col h4{font-size:14px;font-weight:700;color:var(--c-primary);letter-spacing:.08em;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);display:inline-block;transition:color var(--t) var(--ease),transform var(--t) var(--ease)}
.footer-col a:hover{color:#fff;transform:translateX(-2px)}
.footer-bottom{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:22px 24px 32px;
  border-top:1px solid rgba(20,224,168,.28);
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .dot{
  display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--c-mint);margin-right:8px;vertical-align:middle;
}

/* ===================== 入场动效 ===================== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ===================== 响应式 ===================== */
@media (max-width:1279px){
  .figure-grid{gap:36px}
}
@media (max-width:1023px){
  .nav-main{display:none}
  .command-search{display:none}
  .text-link{display:none}
  .menu-toggle{display:inline-flex}
  .section{padding:72px 0}
  .tier-grid{grid-template-columns:repeat(2,1fr)}
  .tier-card--1,.tier-card--2,.tier-card--3{margin-top:0}
  .tier-card--2{margin-top:16px}
  .flow{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .figure-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:44px 32px}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .feature{padding:0}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .cat-hero{min-height:260px;padding:56px 0 36px}
  .site-footer{margin-top:56px}
  .footer-top{grid-template-columns:1fr;padding:48px 20px 32px}
  .footer-bottom{padding:20px 20px 28px;flex-direction:column;gap:8px}
  .tier-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr}
  .cta-band{padding:32px 24px;border-radius:18px}

  /* 对比表转卡片堆叠 */
  .table-wrap{border:0;border-radius:0;box-shadow:none;background:transparent;overflow:visible}
  .compare-table{min-width:0;display:block}
  .compare-table thead{display:none}
  .compare-table tbody,.compare-table tr,.compare-table th,.compare-table td{display:block;width:100%}
  .compare-table tbody tr{
    background:var(--c-surface);
    border:1px solid var(--c-line);
    border-radius:var(--r-card);
    margin-bottom:16px;padding:6px 0 10px;
    box-shadow:var(--sh-1);
  }
  .compare-table tbody th{
    position:static;background:transparent;border-bottom:1px solid var(--c-line);
    padding:14px 18px;font-size:17px;border-radius:0;min-width:0;
  }
  .compare-table tbody td{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:10px 18px;border-bottom:0;min-width:0;background:transparent!important;
  }
  .compare-table tbody td::before{
    content:attr(data-label);
    font-size:13px;color:var(--c-muted);flex:none;
  }
  .compare-table tbody tr:hover th,
  .compare-table tbody tr:hover td{background:transparent}
  .compare-table tbody td.col-rec{
    background:rgba(107,59,245,.06)!important;
    border-radius:10px;margin:2px 10px;padding:10px 12px;
  }
}
@media (max-width:520px){
  .logo-text{font-size:15px}
  .cat-hero h1{font-size:28px}
  .btn{width:100%}
  .cta-actions .btn{width:100%}
  .filter-bar{gap:8px}
  .chip{height:34px;padding:0 14px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --c-bg:#F5F5F2;
  --c-surface:#FFFFFF;
  --c-ink:#0B0C10;
  --c-ink-2:#3A3D46;
  --c-muted:#7A7E88;
  --c-line:#E7E7E2;
  --c-primary:#6B3BF5;
  --c-primary-d:#5529D8;
  --c-mint:#14E0A8;
  --c-lime:#FFD54A;
  --c-danger:#E5484D;
  --c-soft:#EFEFEB;
  --r-card:16px;
  --r-btn:999px;
  --r-img:14px;
  --shadow-1:0 1px 2px rgba(11,12,16,.06);
  --shadow-2:0 12px 32px -12px rgba(107,59,245,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:180ms cubic-bezier(.22,.61,.36,1);
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","SF Pro Display",system-ui,-apple-system,sans-serif;
  --space-sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--c-ink-2);
  background:var(--c-bg);
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.25;letter-spacing:.01em}
p{margin:0}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:1120px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,245,242,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled{box-shadow:0 8px 28px -18px rgba(11,12,16,.35);background:rgba(245,245,242,.9)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{flex:0 0 auto}
.logo-text{font-size:17px;font-weight:700;color:var(--c-ink);white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 12px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);border-radius:8px;transition:color var(--t),background var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-link:hover{color:var(--c-ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary-d);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 10px 0 12px;
  background:var(--c-soft);border:1px solid transparent;border-radius:var(--r-btn);
  transition:width var(--t),border-color var(--t),background var(--t),box-shadow var(--t);
}
.search-box:focus-within{
  width:320px;background:#fff;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(107,59,245,.16);
}
.search-box svg{flex:0 0 auto;color:var(--c-muted)}
.search-box input{
  width:100%;min-width:0;border:0;background:transparent;font-size:14px;outline:none;
}
.search-box input::placeholder{color:var(--c-muted)}
.search-box kbd{
  font-family:var(--font-num);font-size:11px;line-height:1;color:var(--c-muted);
  background:#fff;border:1px solid var(--c-line);border-radius:6px;padding:4px 6px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:600;letter-spacing:.01em;
  transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
  white-space:nowrap;
}
.btn-lg{height:52px;padding:0 26px;font-size:16px}
.btn-md{height:44px;padding:0 22px;font-size:15px}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 24px -14px rgba(107,59,245,.9)}
.btn-primary:hover{background:var(--c-primary-d)}
.btn-primary .arrow{transition:transform var(--t)}
.btn-primary:hover .arrow{transform:translateX(2px)}
.btn-ghost{border:1px solid var(--c-ink);color:var(--c-ink);background:transparent}
.btn-ghost:hover{background:rgba(107,59,245,.08);border-color:var(--c-primary);color:var(--c-primary-d)}
.btn-ghost-light{border:1px solid rgba(255,255,255,.6);color:#fff;background:rgba(255,255,255,.06)}
.btn-ghost-light:hover{background:rgba(255,255,255,.16);border-color:#fff}
.btn-text{color:var(--c-ink-2);padding:0 8px;height:36px}
.btn-text:hover{color:var(--c-primary-d)}
.menu-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--c-line);border-radius:12px;background:#fff;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform var(--t);
}
.menu-toggle span::before{top:-5px}
.menu-toggle span::after{top:5px}
.menu-toggle[aria-expanded="true"] span{background:transparent}
.menu-toggle[aria-expanded="true"] span::before{transform:translateY(5px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span::after{transform:translateY(-5px) rotate(-45deg)}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;padding:88px 24px 32px;
  display:flex;flex-direction:column;gap:20px;
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform 260ms var(--ease),opacity 200ms var(--ease);
}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer .drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 4px;border-bottom:1px solid var(--c-line);
  font-size:17px;font-weight:600;color:var(--c-ink);
  opacity:0;transform:translateY(10px);transition:opacity 240ms var(--ease),transform 240ms var(--ease);
}
.drawer.is-open .drawer-link{opacity:1;transform:translateY(0)}
.drawer.is-open .drawer-link:nth-child(1){transition-delay:60ms}
.drawer.is-open .drawer-link:nth-child(2){transition-delay:100ms}
.drawer.is-open .drawer-link:nth-child(3){transition-delay:140ms}
.drawer.is-open .drawer-link:nth-child(4){transition-delay:180ms}
.drawer.is-open .drawer-link:nth-child(5){transition-delay:220ms}
.drawer .drawer-search{
  display:flex;align-items:center;gap:8px;height:48px;padding:0 16px;background:var(--c-soft);border-radius:var(--r-btn);
}
.drawer .drawer-search input{width:100%;border:0;background:transparent;outline:none;font-size:15px}
.drawer-cta{margin-top:auto}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(100deg,rgba(11,12,16,.84) 0%,rgba(11,12,16,.42) 70%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 260px at 82% 20%,rgba(107,59,245,.42),transparent 70%);
}
.cat-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;min-height:300px;display:flex;flex-direction:column;justify-content:center}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.72);transition:color var(--t)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.breadcrumb [aria-current]{color:#fff}
.cat-hero h1{
  color:#fff;font-size:clamp(30px,4vw,46px);font-weight:800;line-height:1.15;
  max-width:760px;margin:14px 0 14px;
}
.cat-hero .hero-sub{max-width:640px;font-size:16px;color:rgba(255,255,255,.86);line-height:1.8}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-btn);font-size:13px;font-weight:600;line-height:1;
}
.badge-lime{background:rgba(255,213,74,.16);color:var(--c-lime);border:1px solid rgba(255,213,74,.5)}
.badge-mint{background:rgba(20,224,168,.1);color:#0B8F6C}
.badge-gray{background:var(--c-soft);color:var(--c-muted)}

/* ---------- Sections ---------- */
.section{padding:var(--space-sec) 0}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:var(--c-primary);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-primary);border-radius:2px}
.section-head h2{font-size:clamp(26px,3.2vw,36px);margin:12px 0 10px;font-weight:800}
.section-head .lead{color:var(--c-muted);font-size:15px;max-width:640px}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ---------- Tag row ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-btn);
  font-size:13px;font-weight:500;background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2);
  transition:border-color var(--t),color var(--t),background var(--t),transform var(--t);
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary-d);background:rgba(107,59,245,.06);transform:translateY(-1px)}
.tag.is-on{background:var(--c-ink);border-color:var(--c-ink);color:#fff}

/* ---------- Scene waterfall ---------- */
.scene-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:36px 32px;
  max-width:1120px;margin:0 auto;
}
.scene-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(107,59,245,.28)}
.scene-grid .scene-card:nth-child(even){margin-top:56px}
.scene-media{position:relative;overflow:hidden;aspect-ratio:3/2;background:#EDEBF6}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.scene-card:hover .scene-media img{transform:scale(1.04)}
.scene-media::after{
  content:"";position:absolute;inset:0;background:rgba(11,12,16,.16);
  transition:background var(--t);
}
.scene-card:hover .scene-media::after{background:rgba(11,12,16,.44)}
.scene-index{
  position:absolute;top:14px;left:16px;z-index:3;
  font-family:var(--font-num);font-size:28px;font-weight:800;color:#fff;line-height:1;
  text-shadow:0 2px 14px rgba(11,12,16,.6);
}
.scene-flag{
  position:absolute;top:16px;right:16px;z-index:3;height:26px;padding:0 10px;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;
  background:rgba(20,224,168,.9);color:#04352a;
}
.scene-reveal{
  position:absolute;left:0;right:0;bottom:0;z-index:3;
  padding:18px 20px 20px;color:#fff;
  background:linear-gradient(to top,rgba(11,12,16,.92),rgba(11,12,16,.62) 60%,rgba(11,12,16,0));
  transition:transform 300ms var(--ease),opacity 300ms var(--ease);
}
.scene-reveal p{font-size:14px;line-height:1.72;color:rgba(255,255,255,.9)}
.scene-reveal .scene-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:10px;
  font-size:14px;font-weight:600;color:var(--c-mint);
}
.scene-reveal .scene-link:hover{color:#fff}
@media (hover:hover){
  .scene-reveal{opacity:0;transform:translateY(48%)}
  .scene-card:hover .scene-reveal,.scene-card:focus-within .scene-reveal{opacity:1;transform:translateY(0)}
}
.scene-body{padding:22px 24px 24px}
.scene-body h3{font-size:19px;margin:10px 0 8px;font-weight:700}
.scene-body>p{font-size:15px;color:var(--c-ink-2);line-height:1.8}
.scene-meta{
  display:flex;flex-wrap:wrap;gap:8px 14px;margin-top:16px;padding-top:14px;
  border-top:1px solid var(--c-line);font-size:13px;color:var(--c-muted);
}
.scene-meta b{color:var(--c-ink);font-weight:600}

/* ---------- Rank list ---------- */
.rank-grid{display:grid;grid-template-columns:1.25fr .95fr;gap:40px;align-items:start}
.rank-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden}
.rank-item{
  display:flex;align-items:center;gap:16px;padding:18px 22px;
  border-bottom:1px solid var(--c-line);transition:background var(--t),transform var(--t);
}
.rank-item:last-child{border-bottom:0}
.rank-item:hover{background:#FAFAF7}
.rank-no{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:800;font-size:15px;color:var(--c-primary);background:rgba(107,59,245,.08);
}
.rank-item:nth-child(1) .rank-no{background:var(--c-primary);color:#fff}
.rank-item:nth-child(2) .rank-no{background:rgba(107,59,245,.18);color:var(--c-primary-d)}
.rank-main{min-width:0;flex:1}
.rank-main h3{font-size:16px;font-weight:600;margin-bottom:2px}
.rank-main p{font-size:13px;color:var(--c-muted)}
.count-badge{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;
  border-radius:var(--r-btn);background:var(--c-soft);color:var(--c-ink-2);font-size:13px;font-weight:600;
}
.avatars{display:flex;align-items:center}
.avatars span{
  width:30px;height:30px;border-radius:50%;border:2px solid #fff;margin-left:-9px;
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--c-primary),#8E6BFF);
}
.avatars span:first-child{margin-left:0}
.avatars span:nth-child(2){background:linear-gradient(135deg,#0FB98A,var(--c-mint))}
.avatars span:nth-child(3){background:linear-gradient(135deg,#4A4E5A,#22242B)}
.avatars .more{background:var(--c-soft);color:var(--c-ink-2)}
.rank-side{display:flex;flex-direction:column;gap:20px}
.stat-card{
  background:var(--c-ink);color:#fff;border-radius:var(--r-card);padding:26px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
}
.stat-card h3{color:#fff;font-size:17px;margin-bottom:14px}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.stat-row:last-child{border-bottom:0}
.stat-label{font-size:13px;color:rgba(255,255,255,.7)}
.stat-value{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:24px;font-weight:800;color:var(--c-mint)}
.note-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-1);
}
.note-card h3{font-size:17px;margin-bottom:10px}
.note-card p{font-size:14px;color:var(--c-ink-2)}
.note-list{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.note-list li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2)}
.note-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:2px;
  background:var(--c-primary);
}

/* ---------- Timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.tl-item{position:relative;padding-top:22px;border-top:2px solid var(--c-line)}
.tl-item::before{
  content:"";position:absolute;top:-2px;left:0;width:52px;height:2px;background:var(--c-primary);
}
.tl-num{font-family:var(--font-num);font-size:34px;font-weight:800;color:var(--c-line);line-height:1;letter-spacing:-.02em}
.tl-item h3{font-size:17px;margin:8px 0 8px}
.tl-item p{font-size:14px;color:var(--c-muted);line-height:1.8}

/* ---------- Talk ---------- */
.talk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.talk-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:14px;
  transition:transform var(--t),box-shadow var(--t);
}
.talk-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.talk-head{display:flex;align-items:center;gap:12px}
.talk-avatar{
  width:42px;height:42px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-weight:700;color:#fff;background:linear-gradient(135deg,var(--c-primary),#9A78FF);flex:0 0 auto;
}
.talk-head strong{display:block;font-size:15px;color:var(--c-ink);font-weight:600}
.talk-head small{font-size:12px;color:var(--c-muted)}
.talk-card p{font-size:14.5px;line-height:1.82;color:var(--c-ink-2)}
.talk-foot{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line)}
.talk-foot .count-badge{height:28px;font-size:12px}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color var(--t),background var(--t);
}
.faq-q:hover{color:var(--c-primary-d);background:#FAFAF7}
.faq-ico{position:relative;flex:0 0 auto;width:20px;height:20px}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;top:50%;left:0;width:20px;height:2px;border-radius:2px;background:var(--c-primary);
  transform:translateY(-50%);transition:transform var(--t);
}
.faq-ico::after{transform:translateY(-50%) rotate(90deg)}
.faq-item.is-open .faq-ico::after{transform:translateY(-50%) rotate(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms var(--ease)}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-ink);color:#fff;border-radius:24px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);
  background-image:radial-gradient(520px 240px at 88% 12%,rgba(107,59,245,.42),transparent 70%);
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.8vw,32px);font-weight:800;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);margin-top:0;position:relative;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;opacity:.04;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:14px 14px;
}
.footer-top{
  position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-top:64px;padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px}
.footer-contact{display:flex;flex-direction:column;gap:6px;margin-top:16px;font-size:13px;color:rgba(255,255,255,.6)}
.footer-col h4{
  font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--c-primary);
  margin-bottom:16px;font-weight:700;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color var(--t),transform var(--t);display:inline-block}
.footer-col a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:20px;padding-bottom:26px;border-top:1px solid rgba(20,224,168,.32);
  font-size:13px;color:rgba(255,255,255,.56);
}
.footer-bottom .dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--c-mint);margin-right:8px;
  box-shadow:0 0 0 4px rgba(20,224,168,.16);
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .footer-top{grid-template-columns:1.4fr 1fr 1fr;row-gap:36px}
  .footer-col:last-child{grid-column:1 / -1}
}
@media (max-width:1023px){
  :root{--space-sec:72px}
  .nav-main{display:none}
  .menu-toggle{display:inline-flex}
  .search-box{display:none}
  .rank-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .talk-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--space-sec:56px}
  .container{padding:0 20px}
  .cat-hero .container{padding-top:52px;padding-bottom:52px;min-height:0}
  .scene-grid{grid-template-columns:1fr;gap:24px}
  .scene-grid .scene-card:nth-child(even){margin-top:0}
  .cta-band{padding:32px 24px;border-radius:18px}
  .talk-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
  .footer-col:last-child{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .btn-lg{height:48px;padding:0 20px;font-size:15px}
}
@media (max-width:480px){
  .timeline{grid-template-columns:1fr}
  .scene-body{padding:18px 18px 20px}
  .search-box:focus-within{width:220px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --c-bg:#F5F5F2;
  --c-surface:#FFFFFF;
  --c-ink:#0B0C10;
  --c-ink-2:#3A3D46;
  --c-muted:#7A7E88;
  --c-line:#E7E7E2;
  --c-primary:#6B3BF5;
  --c-primary-d:#5529D8;
  --c-mint:#14E0A8;
  --c-lime:#FFD54A;
  --c-danger:#E5484D;
  --c-soft:#EFEFEB;
  --c-row-hover:#FAFAF7;
  --r-card:16px;
  --r-input:12px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,12,16,.06);
  --sh-2:0 12px 32px -12px rgba(107,59,245,.28);
  --sh-head:0 8px 24px -18px rgba(11,12,16,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:180ms var(--ease);
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","SF Pro Display",system-ui,-apple-system,sans-serif;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--c-primary-d);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.25;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:8px;}
::selection{background:rgba(107,59,245,.16);}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ============ 通用按钮 ============ */
.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;letter-spacing:.01em;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn .arrow{display:inline-block;transition:transform var(--t);font-family:var(--font-num);}
.btn:hover .arrow{transform:translateX(2px);}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px -12px rgba(107,59,245,.9);}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border:1px solid var(--c-line);color:var(--c-ink);background:transparent;}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(107,59,245,.08);}
.btn-outline-primary{border:1px solid var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-outline-primary:hover{background:rgba(107,59,245,.08);color:var(--c-primary-d);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-loading{opacity:.72;pointer-events:none;}
.btn.is-loading .spinner{
  width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);font-size:13px;font-weight:600;line-height:1.4;
}
.badge-mint{background:rgba(20,224,168,.12);color:#0A8F6C;}
.badge-lime{background:rgba(255,213,74,.22);color:#6A4E00;}
.badge-gray{background:var(--c-soft);color:var(--c-ink-2);}
.badge-count{
  min-width:34px;justify-content:center;
  background:rgba(107,59,245,.1);color:var(--c-primary-d);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
}

/* ============ 站点头部 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,245,242,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-head);background:rgba(245,245,242,.9);}
.nav-shell{display:flex;align-items:center;gap:24px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);flex:0 0 auto;}
.logo:hover{color:var(--c-ink);}
.logo-mark{flex:0 0 28px;}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap;}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--c-ink-2);
  transition:color var(--t),background var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left center;transition:transform var(--t);
}
.nav-link:hover{color:var(--c-ink);background:rgba(11,12,16,.04);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:220px;height:40px;padding:0 12px;
  background:var(--c-soft);border:1px solid transparent;border-radius:var(--r-pill);
  transition:width var(--t),border-color var(--t),background var(--t),box-shadow var(--t);
}
.search-box:focus-within{
  width:320px;background:#fff;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(107,59,245,.14);
}
.search-box svg{flex:0 0 16px;color:var(--c-muted);}
.search-box input{
  flex:1;min-width:0;border:0;background:transparent;font-size:14px;outline:none;color:var(--c-ink);
}
.search-box input::placeholder{color:var(--c-muted);}
.kbd{
  flex:0 0 auto;font-family:var(--font-num);font-size:11px;color:var(--c-muted);
  border:1px solid var(--c-line);border-radius:6px;padding:1px 6px;background:#fff;
}
.link-quiet{font-size:14px;color:var(--c-ink-2);font-weight:500;}
.link-quiet:hover{color:var(--c-primary);}
.icon-btn{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;
}
.nav-toggle span{display:block;height:2px;background:var(--c-ink);border-radius:2px;transition:transform var(--t),opacity var(--t);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;background:#fff;
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--c-line);}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  font-size:20px;line-height:1;color:var(--c-ink);background:#fff;
}
.drawer-nav{display:flex;flex-direction:column;padding:12px 20px;}
.drawer-nav a{
  padding:14px 4px;font-size:17px;font-weight:600;color:var(--c-ink);border-bottom:1px solid var(--c-line);
  opacity:0;transform:translateY(10px);
}
.drawer.is-open .drawer-nav a{animation:drawerIn .32s var(--ease) forwards;}
.drawer.is-open .drawer-nav a:nth-child(1){animation-delay:.04s;}
.drawer.is-open .drawer-nav a:nth-child(2){animation-delay:.08s;}
.drawer.is-open .drawer-nav a:nth-child(3){animation-delay:.12s;}
.drawer.is-open .drawer-nav a:nth-child(4){animation-delay:.16s;}
.drawer.is-open .drawer-nav a:nth-child(5){animation-delay:.2s;}
.drawer-nav a.is-active{color:var(--c-primary);}
@keyframes drawerIn{to{opacity:1;transform:translateY(0);}}
.drawer-body{padding:20px;display:grid;gap:14px;}
.drawer-search{
  display:flex;align-items:center;gap:10px;height:48px;padding:0 16px;
  background:var(--c-soft);border-radius:var(--r-pill);
}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:15px;}

/* ============ 分类页窄幅 Hero ============ */
.cat-hero{
  position:relative;
  padding:56px 0 60px;
  background:linear-gradient(rgba(11,12,16,.62),rgba(11,12,16,.62)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;
}
.cat-hero h1{
  color:#fff;
  font-size:clamp(30px,4.2vw,48px);
  font-weight:800;
  line-height:1.14;
  margin:14px 0 12px;
  max-width:820px;
}
.cat-hero .hero-sub{color:rgba(255,255,255,.86);font-size:17px;max-width:660px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);}
.breadcrumb a{color:rgba(255,255,255,.8);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:#fff;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  margin-top:36px;padding-top:24px;border-top:1px solid rgba(255,255,255,.22);
}
.stat-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:clamp(24px,2.4vw,32px);font-weight:700;color:#fff;line-height:1.2;
}
.stat-label{font-size:12px;color:rgba(255,255,255,.68);margin-top:4px;}

/* ============ 板块通用 ============ */
.section{padding:96px 0;}
.section-sm{padding:72px 0;}
.section-head{margin-bottom:36px;}
.eyebrow{
  display:inline-block;font-family:var(--font-num);font-size:13px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--c-primary);
}
.section-head h2{font-size:clamp(26px,3.2vw,36px);margin:10px 0 12px;font-weight:800;}
.section-head p{color:var(--c-muted);font-size:16px;max-width:640px;}
.section-head.with-aside{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.link-arrow{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.link-arrow .arrow{transition:transform var(--t);font-family:var(--font-num);}
.link-arrow:hover .arrow{transform:translateX(2px);}
.hr-soft{height:1px;background:var(--c-line);border:0;margin:0;}

/* ============ 找答案：标签组 + 排行列表 ============ */
.find-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:start;}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  font-size:14px;font-weight:600;transition:all var(--t);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(107,59,245,.06);}
.chip .n{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--c-muted);font-size:12px;}
.chip:hover .n{color:var(--c-primary);}
.find-note{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
}
.find-note h3{font-size:17px;margin-bottom:8px;}
.find-note p{font-size:14.5px;color:var(--c-muted);}
.find-note ul{margin-top:14px;display:grid;gap:10px;}
.find-note li{position:relative;padding-left:20px;font-size:14.5px;}
.find-note li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--c-primary);
}
.rank-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.rank-card header{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--c-line);}
.rank-card header h3{font-size:17px;}
.rank-item{
  display:flex;align-items:center;gap:16px;padding:16px 22px;border-bottom:1px solid var(--c-line);
  transition:background var(--t);
}
.rank-item:last-child{border-bottom:0;}
.rank-item:hover{background:var(--c-row-hover);}
.rank-no{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:22px;font-weight:800;
  color:var(--c-line);flex:0 0 34px;
}
.rank-item:nth-child(2) .rank-no{color:var(--c-primary);}
.rank-body{flex:1;min-width:0;}
.rank-body a{font-size:15.5px;font-weight:600;color:var(--c-ink);display:block;}
.rank-body a:hover{color:var(--c-primary);}
.rank-meta{font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums;margin-top:2px;}

/* ============ 双栏：FAQ + 表单 ============ */
.split{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:36px;align-items:start;}
.tipbar{
  display:flex;align-items:flex-start;gap:12px;
  padding:14px 18px;border-radius:var(--r-card);
  background:rgba(255,213,74,.16);border:1px solid rgba(255,213,74,.5);
  font-size:14.5px;color:#5A4300;margin-bottom:24px;
}
.tipbar svg{flex:0 0 18px;margin-top:3px;}

.faq-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-ink);
  transition:background var(--t),color var(--t);
}
.faq-q:hover{background:var(--c-row-hover);color:var(--c-primary);}
.faq-item.is-open .faq-q{color:var(--c-primary);}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform 200ms var(--ease),opacity 200ms var(--ease);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 220ms var(--ease);}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a > div{overflow:hidden;}
.faq-a p{
  padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--c-ink-2);
}
.faq-a p + p{margin-top:10px;}
.faq-a strong{color:var(--c-ink);}

/* ============ 表单卡 ============ */
.form-card{
  position:sticky;top:92px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-lead{font-size:14px;color:var(--c-muted);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--c-muted);margin-bottom:6px;font-weight:600;}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea{
  width:100%;background:#FBFBF8;border:1px solid var(--c-line);border-radius:var(--r-input);
  padding:0 14px;height:48px;font-size:15px;color:var(--c-ink);outline:none;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field select{
  appearance:none;-webkit-appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 14 14'%3E%3Cpath d='M3 5.4 7 9.4l4-4' fill='none' stroke='%237A7E88' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(107,59,245,.18);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--c-danger);background:#FFF8F8;}
.field-error{display:none;align-items:center;gap:6px;font-size:13px;color:var(--c-danger);margin-top:6px;}
.field.has-error .field-error{display:flex;}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--c-muted);line-height:1.6;}
.check input{position:absolute;opacity:0;width:0;height:0;}
.check .box{
  flex:0 0 18px;width:18px;height:18px;margin-top:2px;border-radius:5px;
  border:1px solid var(--c-line);background:#fff;position:relative;
  transition:background var(--t),border-color var(--t);
}
.check .box::after{
  content:"";position:absolute;left:5px;top:1px;width:5px;height:10px;
  border:2px solid #fff;border-top:0;border-left:0;transform:rotate(40deg) scale(.4);
  opacity:0;transition:opacity var(--t),transform var(--t);
}
.check input:checked + .box{background:var(--c-primary);border-color:var(--c-primary);}
.check input:checked + .box::after{opacity:1;transform:rotate(40deg) scale(1);}
.check input:focus-visible + .box{outline:2px solid var(--c-primary);outline-offset:2px;}
.form-note{margin-top:12px;font-size:13px;color:var(--c-muted);text-align:center;}
.form-alert{
  display:none;align-items:center;gap:10px;margin-bottom:16px;
  padding:12px 14px;border-radius:var(--r-input);
  background:rgba(20,224,168,.12);color:#0A8F6C;font-size:14px;font-weight:600;
}
.form-alert.is-visible{display:flex;}
.form-alert svg{flex:0 0 18px;}

/* ============ 流程提示带 ============ */
.steps-band{background:var(--c-ink);color:rgba(255,255,255,.78);position:relative;overflow:hidden;}
.steps-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:16px 16px;opacity:.6;
}
.steps-band .container{position:relative;z-index:1;}
.steps-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:48px;align-items:center;}
.steps-band h2{color:#fff;font-size:clamp(24px,3vw,34px);margin:10px 0 14px;}
.steps-band .eyebrow{color:var(--c-mint);}
.steps-band p.lead{color:rgba(255,255,255,.74);font-size:16px;max-width:520px;}
.steps-media{
  border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(255,255,255,.16);
  position:relative;
}
.steps-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 260ms var(--ease);}
.steps-media:hover img{transform:scale(1.03);}
.steps-list{display:grid;gap:22px;margin-top:30px;}
.step-row{display:flex;gap:16px;align-items:flex-start;}
.step-num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:800;color:var(--c-mint);line-height:1;flex:0 0 42px;
}
.step-row h3{color:#fff;font-size:17px;margin-bottom:4px;}
.step-row p{font-size:14.5px;color:rgba(255,255,255,.66);}

/* ============ 联系信息三列 ============ */
.contact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.contact-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.contact-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(107,59,245,.35);}
.contact-card .ico{
  width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:rgba(107,59,245,.1);color:var(--c-primary);margin-bottom:14px;
}
.contact-card h3{font-size:17px;margin-bottom:6px;}
.contact-card p{font-size:14.5px;color:var(--c-muted);}
.contact-card .val{
  display:block;margin-top:8px;font-size:16px;font-weight:700;color:var(--c-ink);
  font-variant-numeric:tabular-nums;
}

/* ============ CTA 通栏 ============ */
.cta-band{padding:0 0 96px;}
.cta-inner{
  background:linear-gradient(120deg,rgba(107,59,245,.96),rgba(85,41,216,.96));
  border-radius:24px;padding:44px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,224,168,.45),transparent 70%);
}
.cta-copy{position:relative;z-index:1;max-width:640px;}
.cta-copy h2{color:#fff;font-size:clamp(24px,2.8vw,32px);margin-bottom:8px;}
.cta-copy p{color:rgba(255,255,255,.84);font-size:15.5px;}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;}
.cta-actions .btn-white{background:#fff;color:var(--c-primary);}
.cta-actions .btn-white:hover{background:#F2EEFF;color:var(--c-primary-d);}
.cta-actions .btn-line{border:1px solid rgba(255,255,255,.6);color:#fff;}
.cta-actions .btn-line:hover{background:rgba(255,255,255,.14);color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);position:relative;}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:18px 18px;
}
.footer-top{
  position:relative;display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding:64px 24px 48px;
}
.footer-brand .logo{color:#fff;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.62);margin-top:16px;max-width:320px;}
.footer-contact{display:grid;gap:6px;margin-top:18px;font-size:13px;color:rgba(255,255,255,.5);font-variant-numeric:tabular-nums;}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--c-mint);margin-bottom:16px;letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.68);transition:color var(--t),transform var(--t);
  display:inline-block;
}
.footer-col a:hover{color:#fff;transform:translateX(-2px);}
.footer-bottom{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 24px 28px;border-top:1px solid rgba(20,224,168,.28);
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom p{margin:0;font-variant-numeric:tabular-nums;}
.dot{
  display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--c-mint);
  margin-right:8px;vertical-align:middle;
}

/* ============ 入场动效 ============ */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
[data-reveal].is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .search-box{width:190px;}
  .search-box:focus-within{width:250px;}
  .find-grid{gap:28px;}
}
@media (max-width:1023px){
  .nav-main{display:none;}
  .search-box{display:none;}
  .link-quiet{display:none;}
  .icon-btn{display:inline-flex;}
  .nav-toggle{display:flex;}
  .split{grid-template-columns:minmax(0,1fr);}
  .form-card{position:static;}
  .find-grid{grid-template-columns:minmax(0,1fr);}
  .steps-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding-top:48px;}
  .section{padding:72px 0;}
  .section-sm{padding:56px 0;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .contact-grid{grid-template-columns:minmax(0,1fr);}
  .cta-inner{padding:28px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .section{padding:56px 0;}
  .cat-hero{padding:40px 0 44px;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a p{padding:0 18px 20px;}
  .rank-item{padding:14px 18px;}
}
@media (max-width:480px){
  .logo-text{font-size:15px;}
  .btn{padding:0 18px;}
  .nav-shell{gap:12px;}
  .stat-num{font-size:22px;}
  .rank-no{flex:0 0 26px;font-size:19px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  [data-reveal]{opacity:1;transform:none;}
}