/* roulang page: index */
:root{
  --brand-1:#12E0A6;
  --brand-2:#6C4BFF;
  --brand-3:#FF2E7E;
  --accent:#FF8A2B;
  --ink-900:#100A1E;
  --ink-800:#1A1230;
  --paper:#F6F4FB;
  --card:#FFFFFF;
  --line-dark:rgba(255,255,255,.10);
  --line-light:#E7E2F2;
  --ink-text:#1B1526;
  --ink-sub:#6B6478;
  --on-dark:#EAE6F5;
  --on-dark-sub:#A79FC0;
  --grad:linear-gradient(120deg,#12E0A6 0%,#6C4BFF 55%,#FF2E7E 100%);
  --grad-soft:linear-gradient(120deg,rgba(18,224,166,.14),rgba(108,75,255,.12) 55%,rgba(255,46,126,.12));
  --r-lg:24px; --r-md:18px; --r-sm:14px; --r-xs:12px;
  --shadow-soft:0 8px 24px rgba(28,20,60,.08);
  --shadow-mid:0 14px 34px rgba(28,20,60,.12);
  --shadow-glow:0 12px 32px rgba(18,224,166,.18);
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  font-family:var(--font-cn);
  font-size:16px;line-height:1.8;
  color:var(--ink-text);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(108,75,255,.22)}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1240px;margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1280px){.container{padding-left:32px;padding-right:32px}}

/* ============ 顶部公告条 ============ */
.notice-bar{background:var(--ink-900);color:var(--on-dark);font-size:13px;line-height:36px;height:36px;position:relative;z-index:40}
.notice-inner{display:flex;align-items:center;justify-content:space-between;gap:12px}
.notice-left{display:flex;align-items:center;gap:8px;min-width:0}
.notice-dot{width:7px;height:7px;border-radius:50%;background:var(--brand-1);box-shadow:0 0 0 0 rgba(18,224,166,.55);animation:pulse 2.2s infinite;flex:0 0 auto}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(18,224,166,.5)}70%{box-shadow:0 0 0 8px rgba(18,224,166,0)}100%{box-shadow:0 0 0 0 rgba(18,224,166,0)}}
.notice-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--on-dark-sub)}
.notice-text b{color:#fff;font-weight:600}
.notice-close{background:none;border:0;color:var(--on-dark-sub);cursor:pointer;padding:4px 6px;border-radius:8px;transition:color .2s,background .2s}
.notice-close:hover{color:#fff;background:rgba(255,255,255,.08)}

/* ============ 品牌 ============ */
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:12px;background-image:var(--grad);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(108,75,255,.28)}
.brand-mark svg{width:20px;height:20px}
.brand-name{font-size:19px;font-weight:700;letter-spacing:0;color:var(--ink-text);white-space:nowrap}
.site-header.is-dark .brand-name{color:#fff}
.site-header.is-dark{background:transparent}
@media (max-width:400px){.brand-name{font-size:17px}.brand-mark{width:34px;height:34px}}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,244,251,.86);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:background .24s,box-shadow .24s,border-color .24s}
.site-header.is-scrolled{background:rgba(255,255,255,.94);box-shadow:0 6px 22px rgba(28,20,60,.09);border-bottom-color:var(--line-light)}
.header-inner{height:72px;display:flex;align-items:center;gap:20px;transition:height .24s}
.site-header.is-scrolled .header-inner{height:60px}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:14px;flex:1 1 auto}
.nav-item{position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:#3A3346;border-radius:10px;transition:color .2s,background .2s;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.nav-item:hover{color:var(--ink-text);background:rgba(108,75,255,.07)}
.nav-item.is-active{color:var(--ink-text);font-weight:600}
.nav-item.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background-image:var(--grad)}
.nav-wrap{position:relative}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.icon-btn{width:40px;height:40px;border-radius:12px;border:1px solid var(--line-light);background:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink-sub);transition:color .2s,border-color .2s,transform .2s}
.icon-btn:hover{color:var(--brand-2);border-color:rgba(108,75,255,.4);transform:translateY(-1px)}
.menu-btn{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-light);background:#fff;align-items:center;justify-content:center;cursor:pointer}
.menu-btn span{display:block;width:18px;height:2px;background:var(--ink-text);border-radius:2px;position:relative}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-text);border-radius:2px}
.menu-btn span::before{top:-6px}
.menu-btn span::after{top:6px}

/* Mega 面板 */
.mega-panel{
  position:absolute;top:calc(100% + 10px);left:0;width:820px;max-width:calc(100vw - 32px);
  background:#fff;border:1px solid var(--line-light);border-radius:20px;box-shadow:0 24px 60px rgba(28,20,60,.16);
  padding:24px;display:grid;grid-template-columns:1fr 1fr .9fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .18s ease,transform .18s ease,visibility .18s;
}
.nav-wrap:hover .mega-panel,.nav-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12px;letter-spacing:.06em;color:var(--ink-sub);margin-bottom:12px;font-weight:600}
.mega-link{display:block;padding:9px 10px;border-radius:12px;transition:background .2s,transform .2s}
.mega-link:hover{background:var(--paper);transform:translateX(3px)}
.mega-link strong{display:block;font-size:14px;font-weight:600}
.mega-link small{display:block;font-size:12px;color:var(--ink-sub);line-height:1.6;margin-top:2px}
.mega-news li{border-bottom:1px dashed var(--line-light);padding:8px 0;font-size:13px;color:#403948;display:flex;gap:8px}
.mega-news li:last-child{border-bottom:0}
.mega-news time{color:var(--ink-sub);font-size:12px;flex:0 0 auto;font-variant-numeric:tabular-nums}
.mega-foot{grid-column:1 / -1;margin-top:4px;border-radius:16px;padding:14px 18px;background:var(--grad-soft);border:1px solid var(--line-light);display:flex;align-items:center;justify-content:space-between;gap:14px}
.mega-foot p{font-size:13px;color:#403948}
.mega-foot a{font-size:13px;font-weight:600;color:var(--brand-2)}

/* 移动抽屉 */
.drawer-toggle{position:absolute;opacity:0;pointer-events:none}
@media (max-width:1023px){
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:#fff;z-index:70;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;padding:26px 20px;
    box-shadow:-18px 0 50px rgba(28,20,60,.18);transform:translateX(102%);transition:transform .3s cubic-bezier(.22,.61,.36,1);
    overflow-y:auto;
  }
  .drawer-toggle:checked ~ .main-nav{transform:translateX(0)}
  .nav-item{padding:14px 12px;font-size:16px;justify-content:space-between}
  .nav-item.is-active::after{left:12px;right:auto;width:26px}
  .mega-panel{position:static;width:100%;max-width:none;opacity:1;visibility:visible;transform:none;box-shadow:none;border-radius:16px;margin-top:6px;grid-template-columns:1fr;padding:16px}
  .menu-btn{display:inline-flex}
  .drawer-close{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-sub);padding-bottom:14px;border-bottom:1px solid var(--line-light);margin-bottom:10px;cursor:pointer}
}
@media (min-width:1024px){.drawer-close{display:none}}
.mobile-only{display:block}
@media (min-width:1024px){.mobile-only{display:none}}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;border-radius:var(--r-sm);padding:13px 22px;border:1px solid transparent;cursor:pointer;transition:transform .22s cubic-bezier(.22,.61,.36,1),box-shadow .22s,background .22s,color .22s,border-color .22s;white-space:nowrap}
.btn-primary{background-image:var(--grad);background-size:160% 160%;background-position:0% 50%;color:#fff;box-shadow:0 10px 24px rgba(108,75,255,.26),inset 0 1px 0 rgba(255,255,255,.28)}
.btn-primary:hover{background-position:100% 50%;transform:translateY(-2px);box-shadow:0 16px 34px rgba(108,75,255,.3)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-outline{background:transparent;border-color:rgba(18,224,166,.55);color:#0F8F6B}
.btn-outline:hover{background:rgba(18,224,166,.08);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--ink-text);border-color:var(--line-light);box-shadow:var(--shadow-soft)}
.btn-light:hover{transform:translateY(-2px);border-color:rgba(108,75,255,.35);color:var(--brand-2)}
.btn-sm{padding:10px 16px;font-size:14px;border-radius:12px}
.btn-ghost-on-dark{background:rgba(255,255,255,.08);border-color:var(--line-dark);color:#fff}
.btn-ghost-on-dark:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.link-arrow{position:relative;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-2);padding-bottom:3px}
.link-arrow::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;background-image:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .28s cubic-bezier(.22,.61,.36,1)}
.link-arrow:hover::after{transform:scaleX(1)}
.link-arrow.on-dark{color:var(--brand-1)}

/* ============ 标签 / 徽章 ============ */
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.06em;font-weight:600;padding:4px 10px;border-radius:999px;background:rgba(108,75,255,.1);color:#5A3CE0;line-height:1.6}
.tag-pink{background:rgba(255,46,126,.12);color:#D31C64}
.tag-green{background:rgba(18,224,166,.16);color:#0B8F6A}
.tag-orange{background:rgba(255,138,43,.16);color:#C1650F}
.dot-grad{width:8px;height:8px;border-radius:50%;background-image:var(--grad);display:inline-block;flex:0 0 auto}

/* ============ Hero ============ */
.hero{position:relative;isolation:isolate;overflow:hidden;background:var(--ink-900);min-height:78vh;display:flex;align-items:center;color:#fff}
.hero-bg{position:absolute;inset:0;z-index:-2;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center right;}
.hero-overlay{position:absolute;inset:0;z-index:-1;background:linear-gradient(115deg,rgba(16,10,30,.96) 0%,rgba(26,18,48,.86) 38%,rgba(16,10,30,.42) 68%,rgba(16,10,30,.18) 100%)}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;padding-top:72px;padding-bottom:72px;width:100%}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;color:var(--on-dark-sub);border:1px solid var(--line-dark);padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.04)}
.hero h1{font-size:40px;line-height:1.28;font-weight:800;margin:18px 0 14px;letter-spacing:-.5px;max-width:16em}
.hero h1 em{font-style:normal;background-image:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;color:var(--on-dark);max-width:34em;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;font-size:12px;color:var(--on-dark-sub)}
.hero-tags span{border:1px solid var(--line-dark);padding:5px 11px;border-radius:999px}
.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stat-pill{border:1px solid var(--line-dark);background:rgba(255,255,255,.05);border-radius:16px;padding:18px 16px;transition:transform .24s,border-color .24s,background .24s}
.stat-pill:hover{transform:translateY(-4px);border-color:rgba(18,224,166,.5);background:rgba(255,255,255,.08)}
.stat-pill b{display:block;font-size:24px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.stat-pill span{font-size:12px;color:var(--on-dark-sub);letter-spacing:.06em}

/* ============ 区块通用 ============ */
.section{padding-top:56px;padding-bottom:56px}
@media (min-width:768px){.section{padding-top:76px;padding-bottom:76px}}
@media (min-width:1280px){.section{padding-top:100px;padding-bottom:100px}}
.section-head{margin-bottom:32px}
.section-head.split{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;font-weight:600;color:#5A3CE0;margin-bottom:10px}
.section-title{font-size:28px;line-height:1.35;font-weight:800;letter-spacing:-.3px}
@media (max-width:520px){.section-title{font-size:23px}}
.section-desc{font-size:15px;color:var(--ink-sub);margin-top:10px;max-width:56em}
.surface{background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-lg);box-shadow:var(--shadow-soft)}

/* ============ 数据徽章带 ============ */
.badge-strip{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (min-width:768px){.badge-strip{grid-template-columns:repeat(4,1fr);gap:20px}}
.badge-card{background:var(--card);border:1px solid var(--line-light);border-radius:16px;padding:20px;display:flex;gap:12px;align-items:flex-start;transition:transform .24s cubic-bezier(.22,.61,.36,1),box-shadow .24s,border-color .24s}
.badge-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-mid);border-color:rgba(108,75,255,.3)}
.badge-card b{display:block;font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.3}
.badge-card span{font-size:13px;color:var(--ink-sub)}

/* ============ 玩法图文交错 ============ */
.feature-row{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;padding:22px 0;border-top:1px dashed var(--line-light)}
.feature-row:first-of-type{border-top:0;padding-top:0}
@media (min-width:768px){
  .feature-row{grid-template-columns:40% 60%;gap:36px}
  .feature-row.rev .feature-media{order:2}
  .feature-row.rev .feature-body{order:1}
}
.feature-media{border-radius:20px;overflow:hidden;border:1px solid var(--line-light);background:var(--card);box-shadow:var(--shadow-soft)}
.feature-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .24s cubic-bezier(.22,.61,.36,1)}
.feature-media:hover img{transform:scale(1.04)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;background-image:var(--grad);color:#fff;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:14px}
.feature-body h3{font-size:20px;font-weight:700;margin-bottom:10px;line-height:1.5}
.feature-body p{font-size:16px;color:#3E3749;line-height:1.85}
.feature-body .link-arrow{margin-top:14px}

/* ============ 奖励预览 ============ */
.reward-card{background:var(--ink-900);color:#fff;border-radius:var(--r-lg);padding:28px;overflow:hidden;position:relative}
.reward-card::after{content:"";position:absolute;right:-120px;top:-120px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(108,75,255,.42),transparent 68%)}
.reward-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:24px;position:relative;z-index:1}
.reward-head h2{font-size:26px;font-weight:800;letter-spacing:-.3px}
@media (max-width:520px){.reward-head h2{font-size:22px}}
.reward-head p{font-size:14px;color:var(--on-dark-sub);margin-top:8px}
.reward-grid{display:grid;grid-template-columns:1fr;gap:16px;position:relative;z-index:1}
@media (min-width:640px){.reward-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.reward-grid{grid-template-columns:1.25fr 1fr 1fr;grid-template-rows:auto auto}
  .reward-cell.big{grid-row:span 2}}
.reward-cell{border:1px solid var(--line-dark);background:rgba(255,255,255,.05);border-radius:20px;padding:18px;display:flex;gap:14px;align-items:center;transition:transform .24s,border-color .24s,background .24s}
.reward-cell:hover{transform:translateY(-4px);border-color:rgba(18,224,166,.45);background:rgba(255,255,255,.09)}
.reward-cell img{width:72px;height:72px;border-radius:16px;object-fit:cover;flex:0 0 auto}
.reward-cell.big img{width:100%;height:150px;border-radius:16px}
.reward-cell h3{font-size:17px;font-weight:700;margin-top:8px}
.reward-cell p{font-size:13px;color:var(--on-dark-sub);margin-top:4px;line-height:1.7}
.reward-cell.big{flex-direction:column;align-items:stretch}

/* ============ 任务进度 ============ */
.rail-wrap{background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow-soft)}
.rail-track{height:8px;border-radius:999px;background:#EDE9F7;overflow:hidden;margin:6px 0 26px}
.rail-fill{height:100%;width:64%;border-radius:999px;background-image:var(--grad)}
.rail-nodes{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.rail-nodes{grid-template-columns:repeat(5,1fr);gap:12px}}
.rail-node{display:flex;gap:12px;align-items:flex-start}
@media (min-width:768px){.rail-node{flex-direction:column;align-items:center;text-align:center;gap:10px}}
.rail-dot{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;flex:0 0 auto;font-variant-numeric:tabular-nums}
.rail-dot.done{background-image:var(--grad);color:#fff}
.rail-dot.todo{border:2px solid var(--line-light);color:var(--ink-sub);background:#fff}
.rail-node strong{font-size:14px;font-weight:700;display:block}
.rail-node small{font-size:12px;color:var(--ink-sub);line-height:1.7;display:block;margin-top:3px}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
@media (min-width:1280px){.news-grid{grid-template-columns:repeat(4,1fr)}}
.news-card{background:var(--card);border:1px solid var(--line-light);border-radius:20px;overflow:hidden;transition:transform .24s cubic-bezier(.22,.61,.36,1),box-shadow .24s,border-color .24s;height:100%}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-mid);border-color:rgba(108,75,255,.38)}
.news-card__link{display:flex;flex-direction:column;height:100%;padding:20px;gap:16px}
.news-card__media{border-radius:16px;overflow:hidden;display:block;background:var(--paper)}
.news-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .24s cubic-bezier(.22,.61,.36,1)}
.news-card:hover .news-card__media img{transform:scale(1.04)}
.news-card__body{display:flex;flex-direction:column;gap:8px;flex:1 1 auto}
.news-card__title{font-size:17px;font-weight:700;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:3.1em}
.news-card__desc{font-size:14px;color:var(--ink-sub);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-sub);font-variant-numeric:tabular-nums;padding-top:6px;border-top:1px dashed var(--line-light)}
.news-card:hover .news-card__meta span:last-child{color:var(--brand-2)}
.empty-state{border:1px dashed var(--line-light);border-radius:20px;background:#fff;padding:52px 24px;text-align:center;grid-column:1 / -1}
.empty-state strong{display:block;font-size:17px;font-weight:700;margin-top:14px}
.empty-state p{font-size:14px;color:var(--ink-sub);margin-top:8px}

/* ============ CTA 通栏 ============ */
.cta-band{border-radius:var(--r-lg);padding:32px;background-image:var(--grad);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;box-shadow:0 20px 46px rgba(108,75,255,.26)}
.cta-band h2{font-size:24px;font-weight:800;letter-spacing:-.3px}
.cta-band p{font-size:14px;color:rgba(255,255,255,.86);margin-top:8px}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.cta-actions .btn-light{border-color:transparent}
.cta-actions .link-arrow{color:#fff}
.cta-actions .link-arrow::after{background-image:linear-gradient(90deg,#fff,#fff)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px}
.faq-item{background:var(--card);border:1px solid var(--line-light);border-radius:16px;overflow:hidden;transition:border-color .24s,box-shadow .24s}
.faq-item[open]{border-color:rgba(108,75,255,.34);box-shadow:var(--shadow-soft)}
.faq-item summary{list-style:none;cursor:pointer;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px;font-size:16px;font-weight:600}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line-light);display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--brand-2);transition:transform .24s,background .24s,color .24s}
.faq-item[open] .faq-icon{transform:rotate(90deg);background-image:var(--grad);color:#fff;border-color:transparent}
.faq-answer{padding:0 20px 18px 23px;font-size:15px;line-height:1.85;color:#423B4E;border-left:3px solid var(--brand-1);margin-left:20px;padding-left:16px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:var(--on-dark-sub);margin-top:0}
.footer-top{height:4px;background-image:var(--grad)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px;padding:48px 0 30px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:34px}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-name{color:#fff}
.footer-grid p{font-size:13px;line-height:1.85}
.footer-title{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px;letter-spacing:.02em}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:13px;transition:color .2s}
.footer-links a:hover{color:var(--brand-1)}
.footer-bottom{border-top:1px solid var(--line-dark);padding:18px 0 30px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px}
.footer-bottom a:hover{color:var(--brand-1)}

/* 回到顶部 */
.to-top{position:fixed;right:18px;bottom:22px;width:44px;height:44px;border-radius:14px;background:#fff;border:1px solid var(--line-light);box-shadow:var(--shadow-soft);display:flex;align-items:center;justify-content:center;color:var(--ink-sub);z-index:30;transition:transform .24s,color .24s,border-color .24s}
.to-top:hover{transform:translateY(-3px);color:var(--brand-2);border-color:rgba(108,75,255,.4)}

@media (max-width:767px){
  .hero{min-height:64vh}
  .hero-inner{grid-template-columns:1fr;gap:28px;padding-top:44px;padding-bottom:48px}
  .hero h1{font-size:30px;line-height:1.34}
  .hero-sub{font-size:15px}
  .cta-band{padding:24px}
  .cta-band h2{font-size:20px}
}

/* roulang page: article */
:root{
  --brand-1:#12E0A6;
  --brand-2:#6C4BFF;
  --brand-3:#FF2E7E;
  --accent:#FF8A2B;
  --ink-900:#100A1E;
  --ink-800:#1A1230;
  --paper:#F6F4FB;
  --card:#FFFFFF;
  --line-dark:rgba(255,255,255,.10);
  --line-light:#E7E2F2;
  --ink-text:#1B1526;
  --ink-dim:#6B6478;
  --on-dark:#EAE6F5;
  --on-dark-dim:#A79FC0;
  --grad:linear-gradient(120deg,#12E0A6 0%,#6C4BFF 52%,#FF2E7E 100%);
  --grad-soft:linear-gradient(120deg,rgba(18,224,166,.12),rgba(108,75,255,.12),rgba(255,46,126,.10));
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --shadow-soft:0 8px 24px rgba(28,20,60,.08);
  --shadow-soft-sm:0 4px 14px rgba(28,20,60,.06);
  --shadow-glow:0 12px 32px rgba(18,224,166,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans CJK SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-text);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:4px;}

/* 容器 */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px;}
@media(min-width:768px){.container{padding:0 24px;}}
@media(min-width:1280px){.container{padding:0 32px;}}

/* 顶部公告条 */
.topbar{
  background:var(--ink-900);
  color:var(--on-dark-dim);
  font-size:13px;
  height:36px;
  display:flex;align-items:center;
  border-bottom:1px solid var(--line-dark);
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.topbar-left{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--brand-1);box-shadow:0 0 0 0 rgba(18,224,166,.6);animation:pulse 2.2s infinite;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(18,224,166,.55);}
  70%{box-shadow:0 0 0 9px rgba(18,224,166,0);}
  100%{box-shadow:0 0 0 0 rgba(18,224,166,0);}
}
.topbar-close{color:var(--on-dark-dim);font-size:13px;letter-spacing:.06em;}
.topbar-close:hover{color:var(--brand-1);}

/* Header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line-light);
  transition:height .24s var(--ease),box-shadow .24s var(--ease);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;height:72px;
  transition:height .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(28,20,60,.08);}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(108,75,255,.28);
}
.brand-mark svg{width:20px;height:20px;}
.brand-name{font-size:19px;font-weight:700;letter-spacing:0;color:var(--ink-text);white-space:nowrap;}
.main-nav{display:none;}
.nav-item{
  position:relative;
  display:inline-flex;align-items:center;height:72px;
  font-size:15px;font-weight:600;color:var(--ink-dim);
  padding:0 2px;
  transition:color .2s var(--ease),height .24s var(--ease);
}
.site-header.is-scrolled .nav-item{height:60px;}
.nav-item::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-item:hover{color:var(--ink-text);}
.nav-item:hover::after,.nav-item.is-active::after{transform:scaleX(1);}
.nav-item.is-active{color:var(--ink-text);}
.nav-wrap{position:relative;}
.mega-panel{
  position:absolute;top:100%;left:50%;transform:translate(-50%,8px);
  width:840px;max-width:min(92vw,880px);
  background:#fff;border:1px solid var(--line-light);
  border-radius:20px;padding:24px;
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:22px;
  box-shadow:0 24px 48px rgba(28,20,60,.13);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
}
.nav-wrap:hover .mega-panel,.nav-wrap:focus-within .mega-panel{
  opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);
}
.mega-col-title{font-size:12px;letter-spacing:.06em;color:var(--ink-dim);margin-bottom:10px;}
.mega-link{display:block;padding:9px 10px;border-radius:12px;transition:background .2s var(--ease),transform .2s var(--ease);}
.mega-link strong{display:block;font-size:14px;font-weight:600;color:var(--ink-text);}
.mega-link small{display:block;font-size:12px;color:var(--ink-dim);margin-top:2px;}
.mega-link:hover{background:var(--paper);transform:translateX(2px);}
.mega-news li{display:flex;gap:10px;align-items:baseline;padding:8px 0;border-bottom:1px dashed var(--line-light);font-size:13px;color:var(--ink-dim);}
.mega-news li:last-child{border-bottom:none;}
.mega-news time{color:var(--brand-2);font-size:12px;flex-shrink:0;}
.mega-foot{
  grid-column:1 / -1;margin-top:4px;
  background:var(--grad-soft);border:1px solid var(--line-light);
  border-radius:16px;padding:14px 18px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.mega-foot p{font-size:13px;color:var(--ink-dim);}
.mega-foot a{font-size:13px;font-weight:600;color:var(--brand-2);border-bottom:1px solid transparent;}
.mega-foot a:hover{border-bottom-color:var(--brand-2);}
.header-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line-light);
  display:flex;align-items:center;justify-content:center;color:var(--ink-dim);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{border-color:var(--brand-1);color:var(--brand-2);background:#fff;}
.icon-btn svg{width:18px;height:18px;}
.drawer-toggle{position:absolute;opacity:0;pointer-events:none;}
.drawer-open{display:flex;}
.drawer-close{display:none;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:14px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:12px;}
.btn-primary{
  background:var(--grad);background-size:160% 160%;background-position:0% 50%;
  color:#fff;box-shadow:0 10px 24px rgba(108,75,255,.26),inset 0 1px 0 rgba(255,255,255,.28);
}
.btn-primary:hover{transform:translateY(-2px);background-position:100% 50%;box-shadow:0 16px 32px rgba(255,46,126,.28);}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-outline{
  border:1px solid var(--brand-1);color:#0E9B76;background:transparent;
}
.btn-outline:hover{background:rgba(18,224,166,.09);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0) scale(.98);}
.btn-ghost{background:#fff;border:1px solid var(--line-light);color:var(--ink-text);}
.btn-ghost:hover{border-color:var(--brand-2);color:var(--brand-2);transform:translateY(-1px);}
.btn-ghost-on-dark{border:1px solid var(--line-dark);color:var(--on-dark);}
.btn-ghost-on-dark:hover{border-color:var(--brand-1);color:var(--brand-1);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-2);
  position:relative;padding-bottom:3px;
}
.link-arrow::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.link-arrow:hover::after{transform:scaleX(1);}
.link-arrow.on-dark{color:var(--on-dark);}
.link-arrow.on-dark:hover{color:var(--brand-1);}

/* 面包屑 */
.breadcrumb{padding:22px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-dim);}
.breadcrumb li{display:flex;align-items:center;gap:8px;min-width:0;}
.breadcrumb li:not(:last-child)::after{content:"/";color:#C9C2DA;}
.breadcrumb a:hover{color:var(--brand-2);}
.breadcrumb .current{color:var(--ink-text);font-weight:600;max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* 文章头部 */
.article-head{padding:20px 0 30px;border-bottom:1px solid var(--line-light);}
.article-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;
  color:var(--brand-2);background:rgba(108,75,255,.08);
  border-radius:999px;padding:5px 12px;margin-bottom:14px;
}
.article-title{
  font-size:26px;line-height:1.42;font-weight:800;letter-spacing:-.01em;
  color:var(--ink-text);max-width:920px;
}
@media(min-width:768px){.article-title{font-size:31px;}}
@media(min-width:1024px){.article-title{font-size:34px;}}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;
  margin-top:16px;font-size:13px;color:var(--ink-dim);
}
.article-meta .sep{width:4px;height:4px;border-radius:50%;background:#C9C2DA;display:inline-block;}
.article-meta .tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--grad-soft);color:var(--brand-2);font-size:12px;letter-spacing:.06em;font-weight:600;
}
.numeric{font-variant-numeric:tabular-nums;}

/* 主体布局 */
.article-section{padding:40px 0 64px;}
@media(min-width:1024px){.article-section{padding:52px 0 88px;}}
.article-layout{display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:1024px){.article-layout{grid-template-columns:8fr 4fr;gap:36px;align-items:start;}}

/* 正文排版 */
.rich-text{
  background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-lg);
  padding:26px 20px;box-shadow:var(--shadow-soft-sm);max-width:760px;
}
@media(min-width:768px){.rich-text{padding:38px 40px;}}
.rich-text>*+*{margin-top:1.2em;}
.rich-text p{font-size:17px;line-height:1.9;color:var(--ink-text);}
.rich-text h2{
  position:relative;font-size:23px;line-height:1.5;font-weight:700;
  padding-left:14px;margin-top:1.6em;color:var(--ink-text);
}
.rich-text h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--grad);
}
.rich-text h3{font-size:19px;line-height:1.6;font-weight:700;margin-top:1.5em;}
.rich-text h4{font-size:17px;font-weight:700;margin-top:1.3em;}
.rich-text blockquote{
  border-left:4px solid;border-image:var(--grad) 1;background:var(--paper);
  padding:16px 18px;border-radius:0 14px 14px 0;color:var(--ink-dim);font-size:16px;
}
.rich-text ul,.rich-text ol{padding-left:22px;}
.rich-text ul{list-style:disc;}
.rich-text ol{list-style:decimal;}
.rich-text li{font-size:16.5px;line-height:1.9;margin:.5em 0;}
.rich-text li::marker{color:var(--brand-2);}
.rich-text a{color:var(--brand-2);border-bottom:1px solid rgba(108,75,255,.35);}
.rich-text a:hover{border-bottom-color:var(--brand-2);}
.rich-text img{border-radius:16px;margin:1.4em 0;width:100%;}
.rich-text figure{margin:1.4em 0;}
.rich-text figcaption{font-size:13px;color:var(--ink-dim);text-align:center;margin-top:8px;}
.rich-text .table-wrap{overflow-x:auto;border:1px solid var(--line-light);border-radius:16px;margin:1.4em 0;}
.rich-text table{min-width:520px;font-size:15px;}
.rich-text thead th{background:var(--ink-800);color:#fff;font-weight:600;text-align:left;padding:12px 16px;font-size:14px;}
.rich-text tbody td{padding:12px 16px;border-top:1px solid var(--line-light);color:var(--ink-text);}
.rich-text tbody tr:nth-child(even){background:var(--paper);}
.rich-text hr{border:none;height:1px;background:var(--line-light);margin:1.8em 0;}

/* 空态 */
.empty-state{
  background:var(--card);border:1px dashed var(--line-light);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;box-shadow:var(--shadow-soft-sm);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:18px;background:var(--grad-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand-2);
}
.empty-state h2{font-size:20px;font-weight:700;margin-bottom:8px;}
.empty-state p{font-size:15px;color:var(--ink-dim);margin-bottom:20px;}

/* 侧栏 */
.article-side{display:none;}
@media(min-width:1024px){.article-side{display:block;position:sticky;top:96px;}}
.side-card{
  background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--shadow-soft-sm);
}
.side-card+.side-card{margin-top:18px;}
.side-title{font-size:14px;font-weight:700;color:var(--ink-text);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-title::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--grad);}
.side-list li{padding:10px 0;border-bottom:1px dashed var(--line-light);font-size:14px;line-height:1.6;}
.side-list li:last-child{border-bottom:none;padding-bottom:0;}
.side-list a{color:var(--ink-text);}
.side-list a:hover{color:var(--brand-2);}
.side-list time{display:block;font-size:12px;color:var(--ink-dim);margin-top:4px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud a{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:999px;
  border:1px solid var(--line-light);font-size:13px;color:var(--ink-dim);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.tag-cloud a:hover{border-color:var(--brand-1);color:#0E9B76;background:rgba(18,224,166,.08);}
.side-cta{
  background:var(--grad);border-radius:var(--r-md);padding:22px;color:#fff;
  box-shadow:var(--shadow-glow);
}
.side-cta h3{font-size:17px;font-weight:700;margin-bottom:8px;}
.side-cta p{font-size:13px;color:rgba(255,255,255,.86);margin-bottom:16px;}
.side-cta .btn{background:#fff;color:var(--brand-2);width:100%;height:42px;}
.side-cta .btn:hover{transform:translateY(-2px);box-shadow:0 12px 22px rgba(16,10,30,.22);}

/* 移动端侧栏下沉模块 */
.side-mobile{display:block;margin-top:24px;}
@media(min-width:1024px){.side-mobile{display:none;}}

/* 上下篇导航 */
.post-nav{
  display:grid;grid-template-columns:1fr;gap:16px;margin-top:28px;
}
@media(min-width:768px){.post-nav{grid-template-columns:1fr 1fr;}}
.post-nav a{
  display:block;background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-md);
  padding:18px 20px;transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.post-nav a:hover{transform:translateY(-4px);border-color:rgba(108,75,255,.4);box-shadow:var(--shadow-soft);}
.post-nav span{display:block;font-size:12px;letter-spacing:.06em;color:var(--ink-dim);margin-bottom:6px;}
.post-nav strong{font-size:15px;font-weight:600;color:var(--ink-text);}

/* 相关推荐卡 */
.rel-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap;}
.rel-head h2{font-size:24px;font-weight:700;}
.rel-head p{font-size:14px;color:var(--ink-dim);margin-top:6px;}
.card-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-soft-sm);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(108,75,255,.45);box-shadow:var(--shadow-soft);}
.card-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.card:hover .card-thumb img{transform:scale(1.04);}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-tag{
  align-self:flex-start;display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;letter-spacing:.06em;font-weight:600;
  background:var(--grad-soft);color:var(--brand-2);
}
.card-title{font-size:17px;font-weight:700;line-height:1.6;color:var(--ink-text);}
.card-desc{font-size:14px;color:var(--ink-dim);line-height:1.75;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-dim);}
.card-foot .arrow{color:var(--brand-2);font-weight:700;}

/* 返回入口区 */
.back-actions{
  margin-top:34px;background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-lg);
  padding:24px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  box-shadow:var(--shadow-soft-sm);
}
.back-actions p{font-size:15px;color:var(--ink-dim);}
.back-actions .btns{display:flex;gap:12px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{
  position:relative;margin-top:64px;background:var(--ink-900);color:var(--on-dark-dim);
  font-size:13px;padding:56px 0 28px;
}
.footer-top{position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad);}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;}
.footer-brand .brand-name{color:var(--on-dark);font-size:17px;font-weight:700;}
.site-footer p{line-height:1.85;}
.footer-title{color:var(--on-dark);font-size:14px;font-weight:700;margin-bottom:14px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:var(--on-dark-dim);}
.footer-links a:hover{color:var(--brand-1);}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8B84A3;
}

/* 移动端导航抽屉 */
@media(max-width:1023px){
  .drawer-open{display:flex;}
  .main-nav{
    display:flex;flex-direction:column;
    position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);
    background:#fff;padding:20px;gap:2px;overflow-y:auto;
    transform:translateX(102%);transition:transform .3s var(--ease);
    box-shadow:-24px 0 48px rgba(16,10,30,.18);z-index:80;
  }
  .drawer-toggle:checked ~ .main-nav{transform:translateX(0);}
  .drawer-close{
    display:flex;align-items:center;justify-content:space-between;
    font-size:13px;letter-spacing:.06em;color:var(--ink-dim);
    padding-bottom:14px;margin-bottom:8px;border-bottom:1px solid var(--line-light);cursor:pointer;
  }
  .drawer-close span{color:var(--brand-2);font-weight:600;}
  .nav-item{height:52px;font-size:16px;width:100%;color:var(--ink-text);}
  .nav-item::after{display:none;}
  .nav-item.is-active{color:var(--brand-2);}
  .nav-wrap{width:100%;}
  .mega-panel{
    position:static;transform:none;width:100%;max-width:none;
    opacity:1;visibility:visible;pointer-events:auto;
    box-shadow:none;border:none;border-left:1px solid var(--line-light);
    border-radius:0;padding:6px 0 6px 14px;grid-template-columns:1fr;gap:6px;
    display:none;
  }
  .nav-wrap:focus-within .mega-panel,.nav-wrap:hover .mega-panel{display:grid;}
  .mega-foot{grid-column:auto;flex-direction:column;align-items:flex-start;}
  .header-actions .btn-primary{display:none;}
}
@media(min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:30px;}
  .drawer-open{display:none;}
}
@media(max-width:520px){
  .brand-name{font-size:16px;}
  .article-title{font-size:24px;}
  .back-actions{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --brand-1:#12E0A6;
  --brand-2:#6C4BFF;
  --brand-3:#FF2E7E;
  --accent:#FF8A2B;
  --ink-900:#100A1E;
  --ink-800:#1A1230;
  --paper:#F6F4FB;
  --card:#FFFFFF;
  --line-dark:rgba(255,255,255,.10);
  --line-light:#E7E2F2;
  --ink-text:#1B1526;
  --ink-sub:#6B6478;
  --on-dark:#EAE6F5;
  --on-dark-sub:#A79FC0;
  --grad:linear-gradient(120deg,#12E0A6 0%,#6C4BFF 54%,#FF2E7E 100%);
  --grad-soft:linear-gradient(120deg,rgba(18,224,166,.14),rgba(108,75,255,.14),rgba(255,46,126,.14));
  --r-xl:24px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-card:0 8px 24px rgba(28,20,60,.08);
  --shadow-hover:0 16px 36px rgba(28,20,60,.14);
  --shadow-dark:0 12px 32px rgba(18,224,166,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-text);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
summary::-webkit-details-marker{display:none;}
summary{list-style:none;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px;}}
@media (min-width:1280px){.container{padding-left:32px;padding-right:32px;}}
.tabular{font-variant-numeric:tabular-nums;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.95);
  border-bottom:1px solid var(--line-light);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(28,20,60,.08);}
.header-inner{display:flex;align-items:center;gap:16px;height:72px;transition:height .24s var(--ease);}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;flex:none;
  box-shadow:0 6px 16px rgba(108,75,255,.28);
}
.brand-mark svg{width:20px;height:20px;display:block;}
.brand-name{font-size:19px;font-weight:700;letter-spacing:0;color:var(--ink-text);white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-wrap{position:relative;}
.nav-item{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:var(--r-sm);font-size:15px;font-weight:600;color:var(--ink-sub);
  transition:color .2s var(--ease),background .2s var(--ease);white-space:nowrap;
}
.nav-item:hover{color:var(--ink-text);background:rgba(18,224,166,.09);}
.nav-item.is-active{color:var(--ink-text);}
.nav-item.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--grad);
}
.mega-panel{
  position:absolute;top:calc(100% + 16px);left:50%;
  width:820px;max-width:calc(100vw - 48px);
  transform:translate(-50%,8px);
  background:#fff;border:1px solid var(--line-light);border-radius:var(--r-xl);
  box-shadow:0 18px 48px rgba(28,20,60,.16);
  padding:24px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:20px;
  opacity:0;visibility:hidden;z-index:70;
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s linear;
}
.nav-wrap:hover .mega-panel,
.nav-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translate(-50%,0);}
.mega-col-title{font-size:12px;letter-spacing:.06em;font-weight:700;color:var(--ink-sub);margin-bottom:10px;}
.mega-link{display:block;padding:9px 12px;border-radius:var(--r-sm);transition:background .2s var(--ease),transform .2s var(--ease);}
.mega-link strong{display:block;font-size:14px;font-weight:600;color:var(--ink-text);}
.mega-link small{display:block;font-size:12px;color:var(--ink-sub);line-height:1.6;margin-top:2px;}
.mega-link:hover{background:var(--paper);transform:translateX(2px);}
.mega-news li{display:flex;align-items:baseline;gap:10px;padding:8px 0;border-bottom:1px dashed var(--line-light);font-size:13px;color:var(--ink-sub);}
.mega-news li:last-child{border-bottom:0;}
.mega-news time{flex:none;font-size:12px;color:var(--brand-2);font-weight:600;}
.mega-foot{
  grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:4px;padding:14px 18px;border-radius:var(--r-md);background:var(--grad-soft);
}
.mega-foot p{font-size:13px;color:var(--ink-text);}
.header-actions{display:flex;align-items:center;gap:10px;flex:none;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line-light);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-sub);background:#fff;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{color:var(--brand-2);border-color:rgba(108,75,255,.4);transform:translateY(-1px);}
.icon-btn svg{width:18px;height:18px;}
.drawer-toggle{position:absolute;opacity:0;pointer-events:none;width:0;height:0;}
.drawer-close,.nav-toggle{display:none;}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:14px;border:0;cursor:pointer;
  font-size:15px;font-weight:600;letter-spacing:0;line-height:1;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),color .24s var(--ease);
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:12px;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(108,75,255,.26);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(108,75,255,.34);}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-outline{border:1px solid var(--brand-1);background:transparent;color:#0E9C77;}
.btn-outline:hover{background:rgba(18,224,166,.09);transform:translateY(-2px);}
.btn-ghost-on-dark{border:1px solid var(--line-dark);background:transparent;color:var(--on-dark);}
.btn-ghost-on-dark:hover{background:rgba(255,255,255,.08);}
.btn-on-dark{
  background:#fff;color:var(--ink-900);
}
.btn-on-dark:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(16,10,30,.28);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-2);
  background-image:var(--grad);background-repeat:no-repeat;background-size:0% 1px;background-position:left bottom;
  padding-bottom:3px;transition:background-size .28s var(--ease),color .2s var(--ease);
}
.link-arrow:hover{background-size:100% 1px;color:var(--brand-2);}
.link-arrow.on-dark{color:var(--brand-1);}

/* ============ page hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:var(--on-dark);
  background-image:
    linear-gradient(120deg,rgba(16,10,30,.94) 0%,rgba(26,18,48,.80) 42%,rgba(108,75,255,.34) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;
  display:flex;align-items:center;min-height:44vh;padding:44px 0 52px;
}
.page-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:3px;background:var(--grad);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--on-dark-sub);}
.crumbs a{color:var(--on-dark-sub);transition:color .2s var(--ease);}
.crumbs a:hover{color:var(--brand-1);}
.crumbs .sep{opacity:.55;}
.hero-copy{max-width:760px;}
.page-hero h1{
  margin:16px 0 0;font-size:clamp(30px,4.4vw,46px);line-height:1.24;font-weight:800;color:#fff;
  letter-spacing:0;
}
.page-hero .hero-lead{margin-top:14px;font-size:16px;line-height:1.85;color:var(--on-dark);max-width:640px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line-dark);background:rgba(255,255,255,.05);
  font-size:12px;letter-spacing:.06em;color:var(--on-dark);
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--grad);display:block;}

/* ============ sections ============ */
.section{padding:48px 0;}
@media (min-width:768px){.section{padding:88px 0;}}
.section-tight{padding:36px 0;}
@media (min-width:768px){.section-tight{padding:56px 0;}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.6vw,28px);line-height:1.3;font-weight:800;}
.section-head p{margin-top:8px;font-size:14px;color:var(--ink-sub);max-width:620px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;font-weight:700;
  color:var(--brand-2);margin-bottom:10px;
}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--grad);display:block;}

/* ============ point chips ============ */
.point-bar{display:grid;grid-template-columns:1fr;gap:14px;}
@media (min-width:640px){.point-bar{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.point-bar{grid-template-columns:repeat(4,1fr);}}
.point-chip{
  display:flex;align-items:center;gap:12px;padding:16px 18px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line-light);box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.point-chip:hover{transform:translateY(-4px);border-color:rgba(108,75,255,.35);box-shadow:var(--shadow-hover);}
.point-dot{width:8px;height:8px;border-radius:50%;background:var(--grad);flex:none;}
.point-chip strong{display:block;font-size:15px;font-weight:700;}
.point-chip span{display:block;font-size:13px;color:var(--ink-sub);line-height:1.6;}

/* ============ compare rows ============ */
.row-list{display:flex;flex-direction:column;gap:32px;}
@media (min-width:768px){.row-list{gap:56px;}}
.compare-row{display:grid;grid-template-columns:1fr;gap:20px;align-items:center;}
@media (min-width:768px){.compare-row{grid-template-columns:36% 1fr;gap:36px;}}
.compare-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;background:#fff;
  border:1px solid var(--line-light);box-shadow:var(--shadow-card);
}
.compare-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s var(--ease);}
.compare-media:hover img{transform:scale(1.04);}
.compare-body h3{font-size:20px;line-height:1.4;font-weight:700;margin-bottom:12px;}
.compare-body p{font-size:15px;color:var(--ink-sub);line-height:1.9;margin-bottom:14px;}
.row-index{display:inline-flex;align-items:center;gap:10px;margin-bottom:10px;}
.row-index i{
  width:28px;height:28px;border-radius:9px;background:rgba(18,224,166,.14);color:#0E9C77;
  font-style:normal;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.row-index span{font-size:12px;letter-spacing:.06em;font-weight:700;color:var(--ink-sub);}

/* ============ news cards ============ */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line-light);
  border-radius:var(--r-lg);overflow:hidden;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(108,75,255,.34);}
.thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper);}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.news-card:hover .thumb img{transform:scale(1.04);}
.card-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 20px;flex:1;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:rgba(108,75,255,.10);color:#5A3BE0;font-size:12px;font-weight:600;letter-spacing:.06em;
  align-self:flex-start;
}
.tag.pink{background:rgba(255,46,126,.10);color:#D61E68;}
.tag.mint{background:rgba(18,224,166,.14);color:#0E9C77;}
.card-title{font-size:16px;font-weight:700;line-height:1.6;}
.card-excerpt{font-size:14px;line-height:1.75;color:var(--ink-sub);}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{
  margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-sub);
}
.card-meta .arrow{color:var(--brand-2);font-weight:700;transition:transform .24s var(--ease);}
.news-card:hover .card-meta .arrow{transform:translateX(4px);}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line-light);border-radius:var(--r-md);overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item:hover{border-color:rgba(108,75,255,.3);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:0 20px;cursor:pointer;font-size:15px;font-weight:600;color:var(--ink-text);
}
.faq-item summary::after{
  content:"+";flex:none;width:26px;height:26px;border-radius:50%;
  background:rgba(18,224,166,.14);color:#0E9C77;
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.faq-item[open] summary::after{content:"−";background:var(--grad);color:#fff;transform:rotate(180deg);}
.faq-body{
  padding:0 20px 20px 20px;font-size:14px;line-height:1.85;color:var(--ink-sub);
  border-left:3px solid transparent;
}
.faq-item[open] .faq-body{border-left-color:var(--brand-1);padding-left:17px;}

/* ============ CTA band ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);background:var(--grad);color:#fff;
  padding:32px 24px;display:grid;gap:22px;
  box-shadow:0 18px 44px rgba(108,75,255,.26);
}
@media (min-width:900px){.cta-band{grid-template-columns:1fr auto;align-items:center;padding:44px 48px;}}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);font-weight:800;line-height:1.3;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.92);}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.cta-band .link-arrow{color:#fff;}

/* ============ footer ============ */
.site-footer{position:relative;background:var(--ink-900);color:var(--on-dark);padding:56px 0 28px;}
.footer-top{position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-name{color:#fff;font-size:18px;}
.footer-grid p{font-size:13px;line-height:1.85;color:var(--on-dark-sub);}
.footer-title{font-size:13px;letter-spacing:.06em;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-links li{margin-bottom:9px;}
.footer-links a{font-size:13px;color:var(--on-dark-sub);transition:color .2s var(--ease);}
.footer-links a:hover{color:var(--brand-1);}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--on-dark-sub);
}

/* ============ responsive nav ============ */
@media (max-width:1023px){
  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line-light);
    background:#fff;font-size:18px;color:var(--ink-text);cursor:pointer;flex:none;order:5;
  }
  .header-actions{display:none;}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(88vw,380px);
    background:#fff;z-index:95;padding:76px 20px 32px;overflow-y:auto;
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    transform:translateX(100%);transition:transform .28s var(--ease);
    box-shadow:-16px 0 44px rgba(28,20,60,.18);margin-left:0;
  }
  .drawer-toggle:checked ~ .main-nav{transform:translateX(0);}
  .drawer-close{
    display:flex;align-items:center;justify-content:space-between;
    font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--ink-sub);
    padding:0 4px 14px;border-bottom:1px solid var(--line-light);margin-bottom:10px;cursor:pointer;
  }
  .drawer-close span{color:var(--brand-2);font-weight:600;}
  .nav-item{height:48px;padding:0 12px;font-size:16px;}
  .nav-item.is-active::after{left:12px;right:auto;width:24px;bottom:8px;}
  .mega-panel{
    position:static;width:auto;max-width:none;transform:none;opacity:1;visibility:visible;
    display:grid;grid-template-columns:1fr;gap:8px;
    padding:4px 0 12px 12px;border:0;box-shadow:none;background:transparent;
  }
  .mega-news,.mega-foot{display:none;}
  .mega-link{padding:8px 10px;background:var(--paper);}
}
@media (min-width:1024px) and (max-width:1279px){
  .mega-panel{width:720px;}
}
@media (max-width:520px){
  .brand-name{font-size:17px;}
  .page-hero{padding:32px 0 40px;min-height:0;}
  .section{padding:44px 0;}
  .cta-band{padding:26px 18px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --brand-1:#12E0A6;
  --brand-2:#6C4BFF;
  --brand-3:#FF2E7E;
  --accent:#FF8A2B;
  --ink-900:#100A1E;
  --ink-800:#1A1230;
  --paper:#F6F4FB;
  --card:#FFFFFF;
  --line-dark:rgba(255,255,255,.10);
  --line-light:#E7E2F2;
  --ink-text:#1B1526;
  --ink-muted:#6B6478;
  --on-dark:#EAE6F5;
  --on-dark-muted:#A79FC0;
  --grad:linear-gradient(120deg,#12E0A6 0%,#6C4BFF 52%,#FF2E7E 100%);
  --grad-soft:linear-gradient(120deg,rgba(18,224,166,.14),rgba(108,75,255,.12) 52%,rgba(255,46,126,.12));
  --radius-xl:24px;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(28,20,60,.08);
  --shadow-soft:0 4px 14px rgba(28,20,60,.06);
  --shadow-glow:0 12px 32px rgba(18,224,166,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink-text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:16px;
  padding-right:16px;
}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px;}}
@media (min-width:1280px){.container{padding-left:32px;padding-right:32px;}}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.92);
  border-bottom:1px solid var(--line-light);
  transition:height .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.site-header.is-scrolled{
  box-shadow:0 6px 20px rgba(28,20,60,.09);
  background:rgba(255,255,255,.97);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:72px;
  transition:height .24s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(108,75,255,.28);
}
.brand-mark svg{width:20px;height:20px;}
.brand-name{
  font-size:19px;font-weight:700;letter-spacing:0;
  color:var(--ink-text);
  white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:14px;}
.nav-wrap{position:relative;}
.nav-item{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-muted);
  border-radius:10px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-item:hover{color:var(--ink-text);background:rgba(108,75,255,.06);}
.nav-item::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;border-radius:2px;
  background:var(--grad);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-item:hover::after,.nav-item.is-active::after{transform:scaleX(1);}
.nav-item.is-active{color:var(--ink-text);font-weight:600;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line-light);
  background:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-muted);
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.icon-btn:hover{border-color:rgba(18,224,166,.55);color:var(--ink-text);transform:translateY(-1px);}
.icon-btn:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;}

/* Mega 面板 */
.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  left:-40px;
  width:840px;
  background:#fff;
  border:1px solid var(--line-light);
  border-radius:var(--radius-lg);
  box-shadow:0 22px 48px rgba(28,20,60,.14);
  padding:24px;
  display:grid;
  grid-template-columns:1fr 1fr .9fr;
  gap:22px;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
  z-index:70;
}
.nav-wrap:hover .mega-panel,
.nav-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{
  font-size:12px;letter-spacing:.06em;color:var(--ink-muted);
  font-weight:600;margin-bottom:10px;
}
.mega-link{
  display:block;
  padding:10px 12px;
  border-radius:12px;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.mega-link strong{display:block;font-size:14px;font-weight:600;color:var(--ink-text);}
.mega-link small{display:block;font-size:12.5px;color:var(--ink-muted);margin-top:2px;}
.mega-link:hover{background:var(--paper);transform:translateX(2px);}
.mega-news li{
  display:flex;gap:10px;align-items:baseline;
  padding:8px 0;font-size:13.5px;color:var(--ink-muted);
  border-bottom:1px dashed var(--line-light);
}
.mega-news li:last-child{border-bottom:0;}
.mega-news time{color:var(--brand-2);font-weight:600;flex:0 0 auto;font-size:12.5px;}
.mega-foot{
  grid-column:1 / -1;
  margin-top:4px;
  padding:16px 18px;
  border-radius:var(--radius);
  background:var(--grad-soft);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.mega-foot p{font-size:13.5px;color:var(--ink-muted);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:14px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(124deg,#12E0A6 0%,#6C4BFF 52%,#FF2E7E 100%);
  color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.32),0 8px 22px rgba(108,75,255,.26);
}
.btn-primary:hover{
  transform:translateY(-2px);
  background:linear-gradient(128deg,#12E0A6 0%,#6C4BFF 52%,#FF2E7E 100%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.36),0 14px 30px rgba(255,138,43,.30);
}
.btn-primary:active{transform:translateY(0) scale(.98);}
.btn-ghost{
  border-color:rgba(18,224,166,.55);
  background:transparent;
  color:#0f9d78;
}
.btn-ghost:hover{background:rgba(18,224,166,.08);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0) scale(.98);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:12px;}
.btn:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;}

.link-arrow{
  position:relative;
  display:inline-block;
  font-size:14px;
  font-weight:600;
  color:#0f9d78;
  padding-bottom:3px;
}
.link-arrow::after{
  content:"";
  position:absolute;left:0;bottom:0;
  height:1px;width:100%;
  background:var(--grad);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .28s var(--ease);
}
.link-arrow:hover::after{transform:scaleX(1);}
.link-arrow.on-dark{color:var(--brand-1);}

/* 抽屉 */
.drawer-toggle{display:none;}
.drawer-close{display:none;}

/* ============ 面包屑 ============ */
.crumb-bar{
  background:#fff;
  border-bottom:1px solid var(--line-light);
}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding:14px 0;
  font-size:13px;
  color:var(--ink-muted);
}
.crumb a{color:var(--ink-muted);transition:color .2s var(--ease);}
.crumb a:hover{color:#0f9d78;}
.crumb .sep{color:#c9c3d8;}
.crumb .current{color:var(--ink-text);font-weight:600;}

/* ============ KV ============ */
.kv{
  position:relative;
  min-height:48vh;
  display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
  color:var(--on-dark);
}
.kv::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(16,10,30,.94) 0%,rgba(26,18,48,.86) 42%,rgba(108,75,255,.34) 72%,rgba(255,46,126,.16) 100%);
}
.kv-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:center;
  padding:64px 0;
  width:100%;
}
.kv-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;
  color:var(--brand-1);
  border:1px solid rgba(18,224,166,.36);
  border-radius:999px;
  padding:5px 12px;
  margin-bottom:18px;
}
.kv-tag i{
  width:7px;height:7px;border-radius:50%;
  background:var(--grad);
  display:inline-block;
}
.kv h1{
  font-size:32px;
  line-height:1.32;
  font-weight:800;
  color:#fff;
  letter-spacing:0;
}
.kv h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#12E0A6,#6C4BFF 55%,#FF2E7E);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.kv-lead{
  margin-top:16px;
  font-size:16px;
  line-height:1.8;
  color:var(--on-dark-muted);
  max-width:560px;
}
.kv-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}
.kv-note{
  margin-top:18px;font-size:12.5px;color:var(--on-dark-muted);
  display:flex;align-items:center;gap:8px;
}
.kv-note span{width:5px;height:5px;border-radius:50%;background:var(--brand-1);display:inline-block;}
.kv-visual{
  border-radius:var(--radius-xl);
  overflow:hidden;
  border:1px solid var(--line-dark);
  box-shadow:var(--shadow-glow);
  position:relative;
}
.kv-visual img{width:100%;height:280px;object-fit:cover;transition:transform .5s var(--ease);}
.kv-visual:hover img{transform:scale(1.04);}
.kv-visual figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 16px;
  font-size:12.5px;
  color:var(--on-dark);
  background:linear-gradient(to top,rgba(16,10,30,.88),rgba(16,10,30,0));
}

/* ============ 通用板块 ============ */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:92px 0;}}
.section-head{max-width:720px;margin-bottom:34px;}
.section-head .eyebrow{
  font-size:12px;letter-spacing:.06em;color:var(--brand-2);
  font-weight:700;margin-bottom:10px;
}
.section-head h2{
  font-size:24px;line-height:1.36;font-weight:800;color:var(--ink-text);
}
@media (min-width:1024px){.section-head h2{font-size:28px;}}
.section-head p{margin-top:12px;font-size:15.5px;color:var(--ink-muted);}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:8px;}
.timeline::before{
  content:"";
  position:absolute;
  left:27px;top:14px;bottom:14px;
  width:2px;
  background:var(--grad);
  border-radius:2px;
  opacity:.85;
}
.tl-item{
  position:relative;
  padding-left:74px;
  padding-bottom:34px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-index{
  position:absolute;left:8px;top:0;
  width:40px;height:40px;border-radius:50%;
  background:var(--grad);
  color:#fff;font-weight:700;font-size:14px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(108,75,255,.28);
  z-index:1;
}
.tl-card{
  background:#fff;
  border:1px solid var(--line-light);
  border-radius:var(--radius-lg);
  padding:22px 22px 20px;
  box-shadow:var(--shadow-soft);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  display:grid;
  grid-template-columns:1fr 220px;
  gap:22px;
  align-items:start;
}
.tl-card:hover{
  transform:translateY(-4px);
  border-color:rgba(108,75,255,.45);
  box-shadow:var(--shadow);
}
.tl-card h3{font-size:18px;font-weight:700;color:var(--ink-text);margin-bottom:8px;}
.tl-card p{font-size:15px;line-height:1.85;color:var(--ink-muted);}
.tl-thumb{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line-light);
}
.tl-thumb img{width:100%;height:140px;object-fit:cover;transition:transform .45s var(--ease);}
.tl-card:hover .tl-thumb img{transform:scale(1.04);}
.tl-meta{
  display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;
}
.chip{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.06em;
  padding:4px 11px;border-radius:999px;
  background:var(--paper);
  color:var(--ink-muted);
  border:1px solid var(--line-light);
}
.chip-hot{
  background:rgba(255,46,126,.10);
  color:#d81b64;
  border-color:rgba(255,46,126,.28);
}

/* ============ 对比表 ============ */
.table-wrap{
  border-radius:var(--radius-xl);
  overflow:hidden;
  border:1px solid var(--line-light);
  background:#fff;
  box-shadow:var(--shadow-soft);
}
.table-scroll{overflow-x:auto;}
table.compare{
  width:100%;
  border-collapse:collapse;
  min-width:640px;
}
table.compare thead th{
  background:var(--ink-800);
  color:#fff;
  font-size:13.5px;
  font-weight:600;
  letter-spacing:.04em;
  text-align:left;
  padding:16px 20px;
  white-space:nowrap;
}
table.compare tbody td{
  padding:15px 20px;
  font-size:14.5px;
  color:var(--ink-muted);
  border-top:1px solid var(--line-light);
}
table.compare tbody tr:nth-child(even){background:#FBFAFE;}
table.compare tbody td:first-child{color:var(--ink-text);font-weight:600;}
table.compare tbody tr{transition:background .2s var(--ease);}
table.compare tbody tr:hover{background:rgba(18,224,166,.06);}
.table-note{font-size:13px;color:var(--ink-muted);margin-top:14px;}

/* ============ 大圆角卡 ============ */
.big-cards{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.big-card{
  background:#fff;
  border:1px solid var(--line-light);
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  display:flex;flex-direction:column;
}
.big-card:hover{
  transform:translateY(-4px);
  border-color:rgba(18,224,166,.5);
  box-shadow:var(--shadow);
}
.big-card figure{overflow:hidden;}
.big-card img{width:100%;height:212px;object-fit:cover;transition:transform .5s var(--ease);}
.big-card:hover img{transform:scale(1.04);}
.big-card-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.big-card-body h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.big-card-body p{font-size:15px;color:var(--ink-muted);line-height:1.85;}
.big-card-body .btn{align-self:flex-start;margin-top:18px;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line-light);
  border-radius:var(--radius);
  overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item[open]{
  border-color:rgba(18,224,166,.5);
  box-shadow:var(--shadow-soft);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 20px;
  font-size:15.5px;
  font-weight:600;
  color:var(--ink-text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:600;
  color:var(--brand-2);
  background:rgba(108,75,255,.09);
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.faq-item[open] summary::after{
  content:"−";
  transform:rotate(180deg);
  background:rgba(18,224,166,.16);
  color:#0f9d78;
}
.faq-item summary:focus-visible{outline:2px solid var(--brand-1);outline-offset:-2px;}
.faq-answer{
  padding:0 20px 20px 20px;
  font-size:14.5px;
  line-height:1.85;
  color:var(--ink-muted);
  border-left:3px solid transparent;
  border-image:var(--grad) 1;
  margin-left:20px;
  padding-left:16px;
}

/* ============ 返回顶部 ============ */
.top-bar{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:22px 24px;
  border-radius:var(--radius-lg);
  background:var(--grad-soft);
  border:1px solid var(--line-light);
}
.top-bar p{font-size:14.5px;color:var(--ink-muted);}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:#0f9d78;
}
.to-top svg{width:16px;height:16px;transition:transform .24s var(--ease);}
.to-top:hover svg{transform:translateY(-3px);}
.to-top:focus-visible{outline:2px solid var(--brand-1);outline-offset:3px;border-radius:8px;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:56px;
  background:var(--ink-900);
  color:var(--on-dark);
  font-size:13px;
}
.footer-top{height:4px;background:var(--grad);}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:34px;
  padding:56px 0 34px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-name{color:#fff;font-size:17px;}
.site-footer p{color:var(--on-dark-muted);line-height:1.85;font-size:13px;}
.footer-title{
  font-size:12px;letter-spacing:.06em;font-weight:700;
  color:#fff;margin-bottom:14px;
}
.footer-links{display:grid;gap:9px;}
.footer-links a{color:var(--on-dark-muted);transition:color .2s var(--ease);}
.footer-links a:hover{color:var(--brand-1);}
.btn-ghost-on-dark{
  border:1px solid var(--line-dark);
  color:var(--on-dark);
  background:transparent;
  height:40px;padding:0 16px;font-size:13.5px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.btn-ghost-on-dark:hover{border-color:var(--brand-1);color:var(--brand-1);background:rgba(18,224,166,.08);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:18px 0 30px;
  border-top:1px solid var(--line-dark);
  color:var(--on-dark-muted);
  font-size:12.5px;
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .mega-panel{display:none;}
  .kv-inner{grid-template-columns:1fr;gap:28px;padding:52px 0;}
  .kv-visual img{height:220px;}
  .tl-card{grid-template-columns:1fr;}
  .tl-thumb img{height:170px;}
  .big-cards{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding:44px 0 28px;}
}
@media (max-width:767px){
  .header-inner{height:64px;gap:12px;}
  .site-header.is-scrolled .header-inner{height:58px;}
  .brand-name{font-size:17px;}
  .main-nav{
    position:fixed;
    inset:0 0 0 auto;
    width:82%;
    max-width:340px;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:18px 16px 30px;
    margin-left:0;
    transform:translateX(102%);
    transition:transform .3s var(--ease);
    z-index:90;
    overflow-y:auto;
    box-shadow:-18px 0 40px rgba(28,20,60,.16);
  }
  .drawer-toggle:checked ~ .main-nav{transform:translateX(0);}
  .drawer-close{
    display:flex;align-items:center;justify-content:space-between;
    font-size:13px;font-weight:600;color:var(--ink-muted);
    padding:6px 10px 16px;
    border-bottom:1px solid var(--line-light);
    margin-bottom:10px;
  }
  .drawer-close span{color:var(--brand-2);}
  .nav-item{padding:13px 12px;font-size:15.5px;border-radius:12px;}
  .nav-item::after{display:none;}
  .nav-item.is-active{background:var(--grad-soft);color:var(--ink-text);}
  .header-actions .icon-btn{display:none;}
  .kv h1{font-size:26px;}
  .kv-visual img{height:180px;}
  .section{padding:46px 0;}
  .section-head h2{font-size:22px;}
  .tl-item{padding-left:62px;}
  .timeline::before{left:23px;}
  .tl-index{width:34px;height:34px;font-size:13px;left:8px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:22px;}
}
@media (max-width:519px){
  .kv h1{font-size:23px;}
  .kv-actions{flex-direction:column;align-items:stretch;}
  .kv-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .top-bar{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root{
  --brand-1:#12E0A6;
  --brand-2:#6C4BFF;
  --brand-3:#FF2E7E;
  --accent:#FF8A2B;
  --ink-900:#100A1E;
  --ink-800:#1A1230;
  --paper:#F6F4FB;
  --card:#FFFFFF;
  --line-dark:rgba(255,255,255,.10);
  --line-light:#E7E2F2;
  --ink-text:#1B1526;
  --ink-muted:#6B6478;
  --on-dark:#EAE6F5;
  --on-dark-muted:#A79FC0;
  --grad:linear-gradient(120deg,#12E0A6 0%,#6C4BFF 52%,#FF2E7E 100%);
  --r-xl:24px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-soft:0 8px 24px rgba(28,20,60,.08);
  --shadow-mid:0 18px 40px rgba(28,20,60,.14);
  --shadow-glow:0 12px 32px rgba(18,224,166,.18);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink-text);
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 16px}
@media(min-width:768px){.container{padding:0 24px}}
@media(min-width:1280px){.container{padding:0 32px}}

/* ============ 按钮与文字链 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:14px;border:0;cursor:pointer;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background-color .24s var(--ease),background-position .4s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
}
.btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:12px}
.btn-primary{
  background-image:var(--grad);background-size:180% 100%;background-position:0 0;color:#fff;
  box-shadow:0 10px 24px rgba(108,75,255,.26);
}
.btn-primary:hover{transform:translateY(-2px);background-position:60% 0;box-shadow:0 16px 32px rgba(108,75,255,.32)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-outline{
  border:1px solid var(--brand-1);color:#0C8E6A;background:transparent;
}
.btn-outline:hover{background:rgba(18,224,166,.08);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0) scale(.98)}
.btn-outline-on-dark{border:1px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.03)}
.btn-outline-on-dark:hover{background:rgba(18,224,166,.16);border-color:var(--brand-1);transform:translateY(-2px)}
.btn-ghost-on-dark{border:1px solid var(--line-dark);color:var(--on-dark);background:rgba(255,255,255,.05)}
.btn-ghost-on-dark:hover{background:rgba(18,224,166,.14);border-color:rgba(18,224,166,.5);color:#fff}
.link-arrow{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-2);padding-bottom:3px;
  background-image:var(--grad);background-repeat:no-repeat;background-size:0 1px;background-position:left bottom;
  transition:background-size .3s var(--ease),color .24s var(--ease);
}
.link-arrow:hover{background-size:100% 1px;color:#4E2FE0}
.link-arrow.on-dark{color:#fff}
.link-arrow.on-dark:hover{color:var(--brand-1)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line-light);
  transition:height .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(28,20,60,.10)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;height:72px;transition:height .25s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background-image:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(108,75,255,.28);
}
.brand-mark svg{width:20px;height:20px}
.brand-name{font-size:19px;font-weight:700;letter-spacing:0;color:var(--ink-text);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:flex-end}
.nav-item{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:var(--r-sm);font-size:15px;font-weight:600;color:var(--ink-text);
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.nav-item:hover{background:var(--paper);color:var(--brand-2)}
.nav-item.is-active{color:var(--brand-2)}
.nav-item.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-4px;height:2px;border-radius:2px;
  background-image:var(--grad);
}
.nav-wrap{position:relative}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:12px}
.nav-icon{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line-light);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-muted);
  transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease),transform .22s var(--ease);
}
.nav-icon:hover{color:var(--brand-2);border-color:rgba(108,75,255,.42);background:var(--paper);transform:translateY(-1px)}
.nav-icon svg{width:18px;height:18px}
.drawer-toggle{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.drawer-open{display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--line-light);align-items:center;justify-content:center;color:var(--ink-text);cursor:pointer;background:#fff}
.drawer-close{display:none}

/* Mega 面板 */
.mega-panel{
  position:absolute;top:calc(100% + 12px);left:0;
  width:760px;max-width:calc(100vw - 40px);
  background:#fff;border:1px solid var(--line-light);border-radius:var(--r-lg);
  box-shadow:0 24px 52px rgba(28,20,60,.16);padding:24px;
  display:grid;grid-template-columns:1.05fr 1.05fr .9fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(8px);pointer-events:none;
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.nav-wrap:hover .mega-panel,.nav-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.nav-wrap-end .mega-panel{left:auto;right:0}
.mega-col-title{font-size:12px;letter-spacing:.06em;font-weight:700;color:var(--ink-muted);margin-bottom:10px}
.mega-link{display:block;padding:10px 12px;border-radius:var(--r-sm);transition:background-color .2s var(--ease)}
.mega-link:hover{background:var(--paper)}
.mega-link strong{display:block;font-size:14px;font-weight:600;color:var(--ink-text)}
.mega-link small{display:block;font-size:12px;color:var(--ink-muted);margin-top:2px}
.mega-news li{display:flex;gap:10px;font-size:13px;color:var(--ink-muted);padding:8px 0;border-bottom:1px dashed var(--line-light)}
.mega-news li:last-child{border-bottom:0}
.mega-news time{flex:0 0 auto;font-weight:700;color:var(--brand-2)}
.mega-foot{
  grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line-light);padding-top:16px;font-size:13px;color:var(--ink-muted);
}

@media(max-width:1023px){
  .drawer-open{display:inline-flex}
  .site-header .header-inner{height:64px}
  .site-header.is-scrolled .header-inner{height:58px}
  .main-nav{
    position:fixed;inset:0;z-index:120;display:flex;flex-direction:column;align-items:stretch;
    justify-content:flex-start;gap:4px;background:#fff;padding:20px 18px 40px;
    transform:translateX(100%);transition:transform .3s var(--ease);overflow-y:auto;
  }
  .drawer-toggle:checked ~ .main-nav{transform:translateX(0)}
  .drawer-close{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    font-size:13px;letter-spacing:.06em;color:var(--ink-muted);
    padding:0 4px 14px;margin-bottom:8px;border-bottom:1px solid var(--line-light);cursor:pointer;
  }
  .drawer-close span{color:var(--brand-2);font-weight:600;letter-spacing:0}
  .nav-item{height:48px;padding:0 12px;font-size:16px;justify-content:flex-start}
  .nav-item.is-active::after{left:12px;right:12px;bottom:2px}
  .mega-panel{
    position:static;opacity:1;visibility:visible;transform:none;pointer-events:auto;
    width:auto;max-width:none;box-shadow:none;border:0;border-radius:0;background:transparent;
    padding:4px 0 12px;grid-template-columns:1fr;gap:4px;
  }
  .mega-panel>div:nth-child(3),.mega-foot{display:none}
  .nav-actions{margin-left:0;margin-top:14px;padding-top:14px;border-top:1px solid var(--line-light)}
}

/* ============ 面包屑 ============ */
.breadcrumb{padding:20px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-muted)}
.breadcrumb a{color:var(--ink-muted);font-weight:500;transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand-2)}
.breadcrumb .sep{color:#C9C2DC}
.breadcrumb .current{color:var(--ink-text);font-weight:600}

/* ============ 分类页 KV ============ */
.kv-mini{position:relative;overflow:hidden;background:var(--ink-900);color:#fff;min-height:48vh;display:flex;align-items:center;margin-top:16px}
.kv-mini-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.42}
.kv-mini-mask{position:absolute;inset:0;background:linear-gradient(120deg,rgba(16,10,30,.95) 0%,rgba(26,18,48,.88) 46%,rgba(108,75,255,.34) 100%)}
.kv-mini-inner{position:relative;width:100%;padding:52px 0}
.kv-grid{display:grid;gap:30px}
@media(min-width:1024px){
  .kv-grid{grid-template-columns:1.3fr .8fr;align-items:center;gap:48px}
}
.kv-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.20);background:rgba(255,255,255,.06);
  font-size:12px;letter-spacing:.06em;color:var(--on-dark);
}
.kv-eyebrow i{width:8px;height:8px;border-radius:50%;background-image:var(--grad);display:inline-block}
.kv-title{font-size:30px;line-height:1.28;font-weight:800;margin-top:18px;letter-spacing:0}
@media(min-width:1024px){.kv-title{font-size:40px;line-height:1.2}}
.kv-lead{margin-top:16px;font-size:16px;line-height:1.85;color:var(--on-dark);max-width:620px}
.kv-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.kv-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;font-size:12px;letter-spacing:.06em;color:var(--on-dark-muted)}
.kv-tags span{padding:6px 12px;border-radius:999px;border:1px solid var(--line-dark);background:rgba(255,255,255,.04)}
.kv-figure{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-dark);box-shadow:var(--shadow-glow)}
.kv-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}

/* ============ 通用区块 ============ */
.section{padding:48px 0}
@media(min-width:1024px){.section{padding:88px 0}}
.section-tight{padding:40px 0}
@media(min-width:1024px){.section-tight{padding:64px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;font-weight:700;color:var(--brand-2)}
.eyebrow::before{content:"";width:16px;height:2px;border-radius:2px;background-image:var(--grad)}
.section-title{font-size:24px;font-weight:800;line-height:1.35;margin-top:10px;letter-spacing:0}
@media(min-width:1024px){.section-title{font-size:28px}}
.section-sub{font-size:14px;color:var(--ink-muted);margin-top:10px;max-width:680px}

/* ============ 数据徽章矩阵 ============ */
.stat-grid{display:grid;gap:16px;grid-template-columns:1fr 1fr}
@media(min-width:768px){.stat-grid{grid-template-columns:repeat(3,1fr);gap:20px}}
.stat-card{
  background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-md);
  padding:20px;display:flex;align-items:center;gap:14px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(108,75,255,.34);box-shadow:var(--shadow-soft)}
.stat-dot{width:10px;height:10px;border-radius:50%;background-image:var(--grad);flex:0 0 auto;box-shadow:0 0 0 4px rgba(18,224,166,.12)}
.stat-body{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.stat-num{font-size:24px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:0;line-height:1.2}
@media(min-width:1024px){.stat-num{font-size:26px}}
.stat-label{font-size:13px;color:var(--ink-muted)}

/* ============ 双列大卡 ============ */
.big-grid{display:grid;gap:20px}
@media(min-width:900px){.big-grid{grid-template-columns:1fr 1fr;gap:24px}}
.big-card{
  position:relative;background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-xl);
  padding:28px;box-shadow:var(--shadow-soft);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.big-card:hover{transform:translateY(-4px);border-color:rgba(108,75,255,.42);box-shadow:var(--shadow-mid)}
.icon-block{
  width:56px;height:56px;border-radius:var(--r-md);background-image:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;box-shadow:0 10px 22px rgba(108,75,255,.26);
}
.icon-block svg{width:26px;height:26px}
.big-card h3{font-size:20px;font-weight:700;margin-top:20px}
.big-card p{font-size:15px;line-height:1.85;color:var(--ink-muted);margin-top:10px}
.big-card .link-arrow{margin-top:16px}

/* ============ 折叠面板 ============ */
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--card);border:1px solid var(--line-light);border-radius:var(--r-md);overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item[open]{border-color:rgba(108,75,255,.34);box-shadow:var(--shadow-soft)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px;font-size:16px;font-weight:600;color:var(--ink-text);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-2)}
.faq-mark{position:relative;width:22px;height:22px;flex:0 0 auto;border-radius:50%;background:rgba(108,75,255,.10)}
.faq-mark::before,.faq-mark::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand-2);border-radius:2px;transform:translate(-50%,-50%);transition:transform .25s var(--ease)}
.faq-mark::before{width:11px;height:2px}
.faq-mark::after{width:2px;height:11px}
.faq-item[open] .faq-mark::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-body{position:relative;padding:0 24px 20px 36px;font-size:15px;line-height:1.85;color:var(--ink-muted)}
.faq-body::before{content:"";position:absolute;left:20px;top:4px;bottom:20px;width:3px;border-radius:3px;background-image:var(--grad);opacity:.9}

/* ============ 紧凑入口卡 ============ */
.entry-grid{display:grid;gap:16px}
@media(min-width:768px){.entry-grid{grid-template-columns:repeat(3,1fr);gap:20px}}
.entry-card{
  display:flex;align-items:center;gap:14px;background:var(--card);border:1px solid var(--line-light);
  border-radius:var(--r-lg);padding:18px 20px;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(18,224,166,.55);box-shadow:var(--shadow-soft)}
.entry-icon{
  width:42px;height:42px;border-radius:var(--r-sm);flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(108,75,255,.08);color:var(--brand-2);
}
.entry-icon svg{width:20px;height:20px}
.entry-title{font-size:15px;font-weight:700}
.entry-note{font-size:12px;color:var(--ink-muted);letter-spacing:.06em}
.entry-arrow{margin-left:auto;color:var(--brand-2);font-weight:700;transition:transform .24s var(--ease)}
.entry-card:hover .entry-arrow{transform:translateX(4px)}

/* ============ 联系与指引 ============ */
.contact-bar{
  position:relative;overflow:hidden;background:var(--ink-900);color:var(--on-dark);
  border-radius:var(--r-xl);padding:30px;display:grid;gap:26px;
}
@media(min-width:900px){.contact-bar{grid-template-columns:1fr 1fr;align-items:center;padding:42px;gap:40px}}
.contact-bar::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;
  background-image:var(--grad);opacity:.22;filter:blur(30px);
}
.contact-bar h2{font-size:22px;font-weight:800;position:relative}
@media(min-width:1024px){.contact-bar h2{font-size:26px}}
.contact-bar p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--on-dark-muted);position:relative}
.form-row{display:flex;flex-wrap:wrap;gap:12px;position:relative}
.field{
  flex:1 1 220px;min-width:0;height:48px;border-radius:var(--r-sm);padding:0 16px;
  border:1px solid var(--line-dark);background:rgba(255,255,255,.06);color:#fff;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease);
}
.field::placeholder{color:var(--on-dark-muted)}
.field:focus{outline:none;border-color:var(--brand-1);box-shadow:0 0 0 2px rgba(18,224,166,.34);background:rgba(18,224,166,.10)}
.form-hint{margin-top:12px;font-size:12px;color:var(--on-dark-muted);position:relative}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:var(--ink-900);color:var(--on-dark);padding:56px 0 28px;margin-top:8px}
.footer-top{position:absolute;left:0;right:0;top:0;height:4px;background-image:var(--grad)}
.footer-grid{display:grid;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:36px}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr .8fr .8fr 1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-name{color:#fff}
.site-footer p{font-size:13px;line-height:1.9;color:var(--on-dark-muted);margin-top:14px;max-width:320px}
.footer-title{font-size:13px;letter-spacing:.06em;font-weight:700;color:#fff;margin-bottom:14px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:var(--on-dark-muted);transition:color .22s var(--ease)}
.footer-links a:hover{color:var(--brand-1)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  border-top:1px solid var(--line-dark);margin-top:36px;padding-top:20px;
  font-size:13px;color:var(--on-dark-muted);
}

@media(max-width:520px){
  .kv-title{font-size:27px}
  .stat-grid{grid-template-columns:1fr}
  .big-card{padding:22px}
  .contact-bar{padding:24px}
  .btn{width:100%}
  .form-row .btn{width:100%}
  .kv-actions .btn{width:100%}
}