/* roulang page: index */
:root{
  --primary:#1F5FD8;
  --primary-dark:#1749AC;
  --primary-light:#EAF1FE;
  --primary-soft:#DCE8FC;
  --accent:#FF7A2F;
  --accent-light:#FFF1E7;
  --teal:#12B39A;
  --teal-light:#E4F7F3;
  --danger:#D93B3B;
  --ink:#0E1726;
  --text:#33415A;
  --muted:#6B7A93;
  --line:#E3E9F3;
  --bg:#F5F8FD;
  --surface:#FFFFFF;
  --footer-bg:#F1F5FB;
  --shadow-1:0 1px 2px rgba(14,23,38,.04),0 8px 24px rgba(31,95,216,.06);
  --shadow-2:0 2px 6px rgba(14,23,38,.06),0 14px 34px rgba(31,95,216,.10);
  --shadow-3:0 10px 24px rgba(14,23,38,.10),0 28px 64px rgba(31,95,216,.16);
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease)}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
@media (min-width:1440px){:root{--container:1280px}}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部工具条 ============ */
.topbar{background:var(--primary-light);border-bottom:1px solid var(--line);font-size:14px;color:var(--primary-dark)}
.topbar__inner{display:flex;align-items:center;gap:16px;min-height:36px;padding:6px 0}
.topbar__text{flex:1 1 auto;line-height:1.5}
.topbar__text strong{color:var(--primary)}
.topbar__close{flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:0;background:transparent;color:var(--primary-dark);cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.topbar__close:hover{background:var(--primary-soft)}
.topbar.is-hidden{display:none}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .24s var(--ease)}
.site-header.is-scrolled{box-shadow:var(--shadow-2)}
.nav-main__inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--primary)}
.brand__mark{width:38px;height:38px;flex:0 0 auto}
.brand__text{font-size:19px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.brand__text span{color:var(--primary)}
.nav-search{flex:1 1 auto;max-width:520px;margin:0 auto;position:relative}
.nav-search input{
  width:100%;height:46px;padding:0 46px 0 44px;border:1px solid var(--line);
  border-radius:var(--r-pill);background:var(--bg);color:var(--ink);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),transform .22s var(--ease);
}
.nav-search input::placeholder{color:var(--muted);font-size:14px}
.nav-search input:focus{
  outline:none;background:var(--surface);border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(31,95,216,.10),var(--shadow-1);transform:translateY(-1px);
}
.nav-search__icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--muted);pointer-events:none}
.nav-search__btn{position:absolute;right:6px;top:50%;transform:translateY(-50%);height:34px;padding:0 16px;border:0;border-radius:var(--r-pill);background:var(--primary);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .22s var(--ease)}
.nav-search__btn:hover{background:var(--primary-dark)}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-login{font-size:15px;font-weight:600;color:var(--text)}
.nav-login:hover{color:var(--primary)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-chips{background:var(--surface);border-bottom:1px solid var(--line)}
.chips-inner{display:flex;align-items:center;gap:10px;padding:10px 0;overflow-x:auto;scrollbar-width:none}
.chips-inner::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;white-space:nowrap;min-height:36px;padding:6px 18px;
  border-radius:var(--r-pill);background:var(--primary-light);color:var(--primary);
  font-size:14px;font-weight:600;transition:all .22s var(--ease);
}
.chip:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-2px)}
.chip:active{transform:translateY(1px)}
.chip.is-active{background:var(--primary);color:#fff}
.chip.is-active:hover{background:var(--primary-dark);color:#fff}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border:1px solid transparent;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:all .22s var(--ease);
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn:active{transform:translateY(1px);box-shadow:none}
.btn--primary{background:var(--primary);color:#fff}
.btn--primary:hover{background:var(--primary-dark);color:#fff}
.btn--accent{background:var(--accent);color:#fff}
.btn--accent:hover{background:#E8641C;color:#fff}
.btn--ghost{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn--light{background:rgba(255,255,255,.92);color:var(--primary);border-color:transparent}
.btn--light:hover{background:#fff;color:var(--primary-dark)}
.btn--sm{min-height:38px;padding:0 18px;font-size:14px}
.btn--block{width:100%}
.btn--onDark{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.btn--onDark:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.08)}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section--tight{padding:64px 0}
@media (max-width:639px){.section{padding:52px 0}.section--tight{padding:44px 0}}
.section-head{max-width:760px;margin-bottom:48px}
.section-head__bar{display:inline-block;width:4px;height:18px;background:var(--primary);border-radius:2px;margin-bottom:14px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.section-head--onDark h2{color:#fff}
.section-head--onDark p{color:rgba(255,255,255,.72)}
.section-head--onDark .section-head__bar{background:var(--accent)}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--primary-light)}
.hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(96deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.92) 40%,rgba(234,241,254,.72) 100%);
}
.hero__inner{position:relative;z-index:2;padding:76px 0 68px}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--surface);color:var(--primary);font-size:13px;font-weight:600;
  box-shadow:var(--shadow-1);margin-bottom:20px;
}
.hero__eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--teal)}
.hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.22;letter-spacing:-.02em;max-width:14em}
.hero__sub{margin-top:20px;font-size:17px;line-height:1.75;color:var(--text);max-width:34em}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero__stats{display:flex;flex-wrap:wrap;gap:14px 34px;margin-top:38px}
.hero__stat{display:flex;flex-direction:column;gap:2px}
.hero__stat b{font-size:24px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2}
.hero__stat span{font-size:13px;color:var(--muted)}
.hero__panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-3);padding:26px 24px;
}
.panel__head{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink);padding-bottom:14px;border-bottom:1px solid var(--line)}
.panel__dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-light)}
.panel__list{margin-top:8px}
.panel__list li{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px dashed var(--line)}
.panel__list li:last-child{border-bottom:0}
.panel__time{flex:0 0 auto;font-size:15px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;min-width:52px}
.panel__body strong{display:block;font-size:15px;color:var(--ink);font-weight:600;line-height:1.5}
.panel__body em{display:block;font-style:normal;font-size:13px;color:var(--muted);margin-top:2px}
.panel__link{display:inline-block;margin-top:16px;font-size:14px;font-weight:600}
@media (max-width:1023px){
  .hero__panel{margin-top:34px}
  .hero::before{background:linear-gradient(180deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.93) 60%,rgba(234,241,254,.82) 100%)}
}

/* ============ 深色能力面板 ============ */
.section--dark{background:var(--ink);color:rgba(255,255,255,.78)}
.section--dark p{color:rgba(255,255,255,.74)}
.hud__lead{margin-top:22px;font-size:15.5px;line-height:1.85}
.hud__list{margin:24px 0 30px}
.hud__list li{position:relative;padding:9px 0 9px 30px;font-size:15px;color:rgba(255,255,255,.86)}
.hud__list li::before{
  content:"";position:absolute;left:0;top:16px;width:14px;height:8px;
  border-left:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:rotate(-45deg);
}
.hud__metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.hud__metric{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);padding:22px;transition:all .24s var(--ease);
}
.hud__metric:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
.hud__metric b{display:block;font-size:30px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.15}
.hud__metric span{display:block;margin-top:6px;font-size:13px;color:rgba(255,255,255,.62)}
.hud__panel{
  margin-top:16px;border-radius:var(--r-md);border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);padding:20px 22px;
}
.hud__panel h3{color:#fff;font-size:16px;margin-bottom:12px}
.hud__rows li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.12);font-size:14px;color:rgba(255,255,255,.74)}
.hud__rows li:last-child{border-bottom:0}
.tag-ok{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--teal-light)}
.tag-ok::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal)}
@media (max-width:1023px){.hud__metrics{margin-top:34px}}

/* ============ 时间线 ============ */
.timeline{position:relative;margin-top:8px}
.timeline::before{content:"";position:absolute;left:78px;top:10px;bottom:10px;width:2px;background:rgba(31,95,216,.20)}
.timeline__item{position:relative;display:flex;gap:26px;padding:0 0 26px}
.timeline__item:last-child{padding-bottom:0}
.timeline__time{
  flex:0 0 78px;text-align:right;font-size:16px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;padding-right:20px;line-height:1.6;
}
.timeline__node{
  position:absolute;left:71px;top:8px;width:16px;height:16px;border-radius:50%;
  background:var(--surface);border:2px solid var(--primary);box-shadow:0 0 0 4px rgba(31,95,216,.10);
}
.timeline__item--now .timeline__node{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-light)}
.timeline__item--now .timeline__time{color:var(--accent)}
.timeline__card{
  flex:1 1 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px 22px;box-shadow:var(--shadow-1);transition:all .24s var(--ease);
}
.timeline__card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.timeline__card h3{font-size:17px;font-weight:600}
.timeline__card p{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.7}
.timeline__meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.timeline__meta span{font-size:13px;color:var(--primary);background:var(--primary-light);border-radius:var(--r-pill);padding:3px 12px;font-variant-numeric:tabular-nums}
@media (min-width:1024px){
  .timeline__item:nth-child(even){padding-left:56px}
}
@media (max-width:767px){
  .timeline::before{left:9px}
  .timeline__item{flex-direction:column;gap:10px;padding-left:34px;padding-bottom:22px}
  .timeline__time{flex:none;text-align:left;padding-right:0}
  .timeline__node{left:2px;top:8px}
}

/* ============ 嘉宾/团队卡 ============ */
.figure-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-1);transition:all .24s var(--ease);height:100%}
.figure-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px)}
.figure-card__media{aspect-ratio:4/3;background:var(--primary-light);overflow:hidden}
.figure-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.figure-card:hover .figure-card__media img{transform:scale(1.04)}
.figure-card__body{padding:20px}
.figure-card__body h3{font-size:17px}
.figure-card__role{display:block;margin-top:4px;font-size:13px;color:var(--primary);font-weight:600}
.figure-card__note{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.7}

/* ============ 最新信息（CMS） ============ */
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;height:100%;display:flex;flex-direction:column;box-shadow:var(--shadow-1);
  transition:all .24s var(--ease);
}
.news-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:var(--primary-soft)}
.news-card__badge{
  align-self:flex-start;font-size:12.5px;font-weight:600;color:var(--primary);
  background:var(--primary-light);border-radius:var(--r-pill);padding:3px 12px;margin-bottom:14px;
}
.news-card__title{font-size:17.5px;line-height:1.55;font-weight:600}
.news-card__title a{color:var(--ink)}
.news-card__title a:hover{color:var(--primary)}
.news-card__summary{margin-top:12px;font-size:14px;color:var(--muted);line-height:1.72;flex:1 1 auto;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line)}
.news-card__meta time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.news-card__meta .more{font-size:13.5px;font-weight:600;color:var(--primary)}
.empty-state{
  border:2px dashed var(--line);border-radius:var(--r-md);background:var(--surface);
  padding:44px 24px;text-align:center;color:var(--muted);font-size:15px;
}
.empty-state .btn{margin-top:18px}

/* ============ 票种对比 ============ */
.plans{align-items:stretch}
.plan{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px 24px;height:100%;display:flex;flex-direction:column;box-shadow:var(--shadow-1);
  transition:all .24s var(--ease);
}
.plan:hover{box-shadow:var(--shadow-2)}
.plan--best{
  border:2px solid var(--primary);box-shadow:var(--shadow-3);
  transform:translateY(-4px);position:relative;
}
.plan--best:hover{transform:translateY(-6px)}
.plan__badge{
  position:absolute;top:-14px;left:24px;background:var(--teal);color:#fff;
  font-size:12.5px;font-weight:600;padding:5px 14px;border-radius:var(--r-pill);
}
.plan__head h3{font-size:19px}
.plan__price{display:flex;align-items:baseline;gap:6px;margin-top:12px}
.plan__price b{font-size:34px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1}
.plan__price span{font-size:13px;color:var(--muted)}
.plan__for{margin-top:12px;font-size:14px;color:var(--muted);line-height:1.7;min-height:48px}
.plan__features{margin:20px 0 24px;border-top:1px solid var(--line);padding-top:8px;flex:1 1 auto}
.plan__features li{
  position:relative;padding:11px 0 11px 28px;font-size:14.5px;line-height:1.6;
  border-bottom:1px dashed var(--line);color:var(--text);
}
.plan__features li:last-child{border-bottom:0}
.plan__features li::before{
  content:"";position:absolute;left:0;top:16px;width:12px;height:7px;
  border-left:2px solid var(--teal);border-bottom:2px solid var(--teal);transform:rotate(-45deg);
}
.plan__features li.is-no{color:var(--muted)}
.plan__features li.is-no::before{width:12px;height:2px;border:0;background:var(--line);transform:none;top:21px}
@media (max-width:767px){
  .plan--best{order:-1;transform:none;margin-bottom:8px}
  .plan--best:hover{transform:translateY(-3px)}
  .plan{margin-bottom:18px}
}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto}
.faq__item{border-bottom:1px solid var(--line);background:transparent}
.faq__item:first-child{border-top:1px solid var(--line)}
.faq__item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px;cursor:pointer;list-style:none;font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color .22s var(--ease);
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary:hover{color:var(--primary)}
.faq__icon{flex:0 0 auto;width:26px;height:26px;position:relative;border-radius:50%;background:var(--primary-light);transition:background-color .22s var(--ease)}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px}
.faq__icon::before{left:7px;right:7px;top:12px;height:2px}
.faq__icon::after{top:7px;bottom:7px;left:12px;width:2px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
.faq__item[open] .faq__icon{background:var(--primary)}
.faq__item[open] .faq__icon::before{background:#fff}
.faq__item[open] .faq__icon::after{opacity:0;transform:scale(.4);background:#fff}
.faq__answer{padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--muted);max-width:62em}

/* ============ CTA 与表单 ============ */
.cta{background:var(--primary-light);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta__card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 28px;box-shadow:var(--shadow-2);
}
.cta__card h3{font-size:19px;margin-bottom:8px}
.cta__card p{font-size:14.5px;color:var(--muted);margin-bottom:0}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:22px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;min-height:46px;padding:11px 14px;border:1px solid var(--line);
  border-radius:var(--r-sm);background:var(--surface);color:var(--ink);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(31,95,216,.10);
}
.field small{font-size:12.5px;color:var(--muted)}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:22px}
.form-foot p{font-size:12.5px;color:var(--muted);margin:0;max-width:52em}
.form-note{margin-top:14px;font-size:13.5px;color:var(--teal);font-weight:600;display:none}
.form-note.is-on{display:block}
@media (max-width:639px){.form-grid{grid-template-columns:1fr}}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer-bg);border-top:1px solid var(--line);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--ink)}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{font-size:14px;color:var(--text);display:inline-block}
.footer-col ul li a:hover{color:var(--primary);transform:translateX(2px)}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand__mark{width:34px;height:34px}
.footer-brand span{font-size:17px;font-weight:700;color:var(--ink)}
.footer-brand span em{font-style:normal;color:var(--primary)}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.8;max-width:32em}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--text);margin-bottom:12px;line-height:1.7}
.footer-contact b{font-weight:600;color:var(--ink);flex:0 0 auto}
.footer-bottom{margin-top:52px;border-top:1px solid var(--line);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--muted)}
@media (max-width:1023px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}}
@media (max-width:639px){.footer-grid{grid-template-columns:1fr}}

/* ============ 响应式导航 ============ */
@media (max-width:1023px){
  .nav-main__inner{flex-wrap:wrap;height:auto;padding:12px 0;gap:12px}
  .brand{order:1}
  .nav-actions{order:2;margin-left:auto}
  .nav-toggle{display:inline-flex;order:3}
  .nav-search{order:4;flex:1 1 100%;max-width:none;margin:0}
  .nav-search input{height:44px}
  .nav-chips{display:none;border-bottom:1px solid var(--line)}
  .nav-chips.is-open{display:block}
  .chips-inner{flex-direction:column;align-items:stretch;padding:12px 0;overflow:visible}
  .chip{justify-content:center;min-height:48px;font-size:15px}
  .nav-login{display:none}
  .section-head{margin-bottom:34px}
}
@media (max-width:639px){
  .hero__inner{padding:48px 0 44px}
  .hero__actions .btn{flex:1 1 100%}
  .hero__stats{gap:14px 24px}
  .brand__text{font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --primary:#1F5FD8;
  --primary-dark:#1749AC;
  --primary-light:#EAF1FE;
  --accent:#FF7A2F;
  --accent-light:#FFF1E7;
  --teal:#12B39A;
  --ink:#0E1726;
  --text:#33415A;
  --muted:#6B7A93;
  --line:#E3E9F3;
  --bg:#F5F8FD;
  --surface:#FFFFFF;
  --danger:#D93B3B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(14,23,38,.04), 0 8px 24px rgba(31,95,216,.06);
  --sh2:0 2px 6px rgba(14,23,38,.06), 0 14px 34px rgba(31,95,216,.10);
  --sh3:0 6px 18px rgba(14,23,38,.10), 0 26px 54px rgba(31,95,216,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),transform .22s var(--ease);}
a:hover{color:var(--primary);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.show-for-sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1440px){ .container{max-width:1280px;padding-left:32px;padding-right:32px;} }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border:1px solid transparent;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(31,95,216,.20);}
.btn--primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh2);}
.btn--ghost{background:#fff;color:var(--primary);border-color:var(--line);}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--sh1);}
.btn--accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,47,.24);}
.btn--accent:hover{background:#EB661B;color:#fff;transform:translateY(-2px);box-shadow:var(--sh2);}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-sm);}

/* ---------- 顶部公告条 ---------- */
.topbar{height:36px;background:var(--primary-light);border-bottom:1px solid rgba(31,95,216,.10);}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px;}
.topbar__text{margin:0;font-size:13.5px;color:var(--primary-dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar__close{
  display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;flex:0 0 26px;
  border:0;border-radius:50%;background:transparent;color:var(--primary-dark);cursor:pointer;transition:background-color .2s var(--ease);
}
.topbar__close:hover{background:rgba(31,95,216,.12);}
.topbar.is-hidden{display:none;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);transition:box-shadow .26s var(--ease);}
.site-header.is-scrolled{box-shadow:var(--sh1);}
.nav-main{border-bottom:1px solid var(--line);}
.nav-main__inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{width:38px;height:38px;flex:0 0 38px;border-radius:11px;}
.brand__text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.brand__text span{color:var(--primary);}
.brand:hover .brand__text{color:var(--ink);}

.nav-search{
  display:flex;align-items:center;flex:1 1 auto;max-width:520px;margin:0 auto;height:44px;
  padding:0 6px 0 14px;background:#F1F5FB;border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease);
}
.nav-search:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px rgba(31,95,216,.10);}
.nav-search__icon{width:18px;height:18px;flex:0 0 18px;color:var(--muted);margin-right:9px;}
.nav-search input{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);font-family:inherit;
}
.nav-search input::placeholder{color:var(--muted);}
.nav-search__btn{
  height:34px;padding:0 18px;border:0;border-radius:var(--r-pill);background:var(--primary);color:#fff;
  font-size:14px;font-weight:600;cursor:pointer;transition:background-color .22s var(--ease);
}
.nav-search__btn:hover{background:var(--primary-dark);}

.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.nav-login{font-size:15px;font-weight:600;color:var(--text);}
.nav-login:hover{color:var(--primary);}

.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;flex:0 0 44px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);position:relative;
  transition:transform .22s var(--ease);
}
.nav-toggle span::before{position:absolute;top:-6px;}
.nav-toggle span::after{position:absolute;top:6px;}

.nav-chips{border-bottom:1px solid var(--line);background:var(--surface);}
.chips-inner{display:flex;align-items:center;gap:10px;padding-top:10px;padding-bottom:10px;overflow-x:auto;scrollbar-width:none;}
.chips-inner::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--bg);border:1px solid transparent;font-size:14px;color:var(--text);white-space:nowrap;
  transition:background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.chip:hover{background:var(--primary-light);color:var(--primary);transform:translateY(-1px);}
.chip.is-active{background:var(--primary);color:#fff;border-color:var(--primary);}
.chip.is-active:hover{background:var(--primary-dark);color:#fff;}

/* ---------- 面包屑与文章头部 ---------- */
.page-band{background:linear-gradient(180deg,#FFFFFF 0%,#F5F8FD 100%);border-bottom:1px solid var(--line);padding:26px 0 34px;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb__sep{color:#C3CDDD;}
.breadcrumb__current{color:var(--text);font-weight:600;}

.article-head{max-width:900px;padding-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--accent-light);color:#C4520F;font-size:12.5px;font-weight:600;margin-bottom:16px;
}
.article-head h1{
  font-size:clamp(27px,3.4vw,40px);line-height:1.26;letter-spacing:-.02em;margin:0 0 18px;
}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--muted);}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C3CDDD;}

/* ---------- 文章主体布局 ---------- */
.site-main{display:block;}
.article-section{padding:44px 0 0;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;}

.article-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:38px 42px;box-shadow:var(--sh1);
}

/* 长文排版 */
.article-body{max-width:820px;font-size:16px;line-height:1.9;color:var(--text);}
.article-body > * + *{margin-top:20px;}
.article-body h2{font-size:25px;line-height:1.36;margin-top:46px;padding-left:14px;position:relative;color:var(--ink);}
.article-body h2::before{content:"";position:absolute;left:0;top:.34em;width:4px;height:.78em;border-radius:2px;background:var(--primary);}
.article-body h3{font-size:18.5px;line-height:1.5;margin-top:32px;color:var(--ink);}
.article-body h4{font-size:16px;line-height:1.5;margin-top:24px;color:var(--ink);}
.article-body ul li{position:relative;padding-left:20px;}
.article-body ul li + li{margin-top:8px;}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.74em;width:6px;height:6px;border-radius:50%;background:var(--primary);}
.article-body ol{counter-reset:artn;}
.article-body ol li{position:relative;padding-left:34px;counter-increment:artn;}
.article-body ol li + li{margin-top:10px;}
.article-body ol li::before{
  content:counter(artn);position:absolute;left:0;top:.22em;width:22px;height:22px;line-height:22px;text-align:center;
  border-radius:50%;background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:700;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--primary-light);border-left:4px solid var(--primary);
  border-radius:0 var(--r-md) var(--r-md) 0;color:var(--text);font-size:15.5px;
}
.article-body blockquote p{margin:0;}
.article-body img{border-radius:12px;margin:26px 0;box-shadow:var(--sh1);height:auto;}
.article-body figure{margin:26px 0;}
.article-body figure img{margin:0;}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--muted);text-align:center;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--primary-dark);}
.article-body table{width:100%;display:block;overflow-x:auto;border-collapse:collapse;font-size:14px;}
.article-body table th,.article-body table td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap;}
.article-body table th{background:#F1F5FB;color:var(--ink);font-weight:600;}
.article-body pre{
  background:var(--ink);color:#E6EEFF;padding:18px 20px;border-radius:12px;overflow-x:auto;
  font-size:13.5px;line-height:1.75;margin:26px 0;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;}
.article-body :not(pre) > code{background:#EEF3FC;color:var(--primary-dark);padding:2px 6px;border-radius:6px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  border:1px dashed #C9D6EA;border-radius:var(--r-md);background:#FBFCFE;
  padding:52px 24px;text-align:center;
}
.empty-state i{font-size:28px;color:#A9B8D2;}
.empty-state h3{margin:14px 0 8px;font-size:18px;}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:20px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:112px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 22px 20px;box-shadow:var(--sh1);
}
.side-card + .side-card{margin-top:20px;}
.side-card__head{display:flex;align-items:center;gap:8px;margin-bottom:16px;}
.side-card__head i{color:var(--primary);font-size:15px;}
.side-card h3{font-size:16px;}
.side-list li + li{margin-top:10px;padding-top:10px;border-top:1px solid var(--line);}
.side-list a{display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.6;color:var(--text);}
.side-list a i{color:var(--primary);font-size:12px;margin-top:5px;flex:0 0 auto;}
.side-list a:hover{color:var(--primary);}
.side-note{font-size:13px;line-height:1.8;color:var(--muted);}
.side-cta{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.side-cta .btn{width:100%;}

/* ---------- 继续了解 ---------- */
.related{padding:64px 0 78px;}
.related__head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.related__head h2{font-size:clamp(21px,2.4vw,27px);line-height:1.35;position:relative;padding-left:14px;}
.related__head h2::before{content:"";position:absolute;left:0;top:.3em;width:4px;height:.8em;border-radius:2px;background:var(--primary);}
.related__head a{font-size:14px;font-weight:600;color:var(--primary);}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:#D3E0F6;}
.rel-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--primary-light);}
.rel-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.rel-card:hover .rel-card__media img{transform:scale(1.04);}
.rel-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.rel-card__body h3{font-size:16.5px;line-height:1.5;font-weight:700;}
.rel-card__body p{font-size:13.5px;line-height:1.75;color:var(--muted);}
.rel-card__more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.rel-card__more i{font-size:11px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#F1F5FB;border-top:1px solid var(--line);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand span{font-size:16.5px;font-weight:700;color:var(--ink);}
.footer-brand em{font-style:normal;color:var(--primary);}
.footer-desc{font-size:13.5px;line-height:1.85;color:var(--muted);max-width:330px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--ink);}
.footer-col ul li + li{margin-top:10px;}
.footer-col ul a{font-size:14px;color:var(--muted);display:inline-block;}
.footer-col ul a:hover{color:var(--primary);transform:translateX(2px);}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:var(--muted);}
.footer-contact li + li{margin-top:10px;}
.footer-contact b{color:var(--ink);font-weight:600;flex:0 0 62px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:20px 0 26px;font-size:13px;color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr;gap:32px;}
  .article-side{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .side-card + .side-card{margin-top:0;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav-main__inner{gap:16px;}
  .nav-search{max-width:360px;}
}
@media (max-width:767px){
  .nav-main__inner{flex-wrap:wrap;height:auto;padding-top:10px;padding-bottom:12px;gap:12px;}
  .brand{flex:1 1 auto;}
  .nav-toggle{display:inline-flex;}
  .nav-search{order:3;flex:1 1 100%;max-width:none;margin:0;}
  .nav-actions{display:none;}
  .nav-chips{display:none;}
  .nav-chips.is-open{display:block;}
  .chips-inner{padding-top:12px;padding-bottom:12px;}
  .article-main{padding:26px 20px;border-radius:var(--r-md);}
  .article-body{font-size:15.5px;line-height:1.85;}
  .article-body h2{font-size:21px;margin-top:34px;}
  .article-body h3{font-size:17px;margin-top:26px;}
  .article-side{grid-template-columns:1fr;}
  .related{padding:44px 0 56px;}
  .related__head{flex-direction:column;align-items:flex-start;gap:10px;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .topbar__text{font-size:12.5px;}
  .page-band{padding:20px 0 26px;}
}
@media (max-width:520px){
  .article-head h1{font-size:24px;}
  .article-body h2{font-size:20px;}
  .meta-row{gap:8px;font-size:12.5px;}
  .rel-card__body{padding:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
:root{
  --brand:#1F5FD8;
  --brand-dark:#1749AC;
  --brand-light:#EAF1FE;
  --accent:#FF7A2F;
  --accent-light:#FFF1E7;
  --teal:#12B39A;
  --teal-light:#E6F8F4;
  --danger:#D93B3B;
  --ink:#0E1726;
  --text:#33415A;
  --muted:#6B7A93;
  --line:#E3E9F3;
  --bg:#F5F8FD;
  --surface:#FFFFFF;
  --radius-sm:10px;
  --radius-md:14px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,23,38,.04), 0 8px 24px rgba(31,95,216,.06);
  --shadow-2:0 2px 6px rgba(14,23,38,.06), 0 16px 38px rgba(31,95,216,.10);
  --shadow-3:0 8px 20px rgba(14,23,38,.10), 0 26px 60px rgba(31,95,216,.16);
  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:24px; --sp-5:32px; --sp-6:48px; --sp-7:64px; --sp-8:88px;
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:PingFang SC,"HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,fieldset{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border-radius:12px;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text);}
h1,h2,h3,h4{color:var(--ink);font-weight:700;letter-spacing:-.01em;}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.22;letter-spacing:-.02em;}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;}
h3{font-size:18px;line-height:1.45;font-weight:600;}
p{font-size:16px;line-height:1.85;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}
@media (min-width:1440px){:root{--container:1280px;}}
.num{font-variant-numeric:tabular-nums;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(31,95,216,.22);}
.btn--primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(31,95,216,.28);}
.btn--primary:active{transform:translateY(1px);box-shadow:0 4px 10px rgba(31,95,216,.2);}
.btn--accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,47,.24);}
.btn--accent:hover{background:#E96A22;transform:translateY(-2px);}
.btn--ghost{background:#fff;color:var(--brand);border-color:#CFDEFB;}
.btn--ghost:hover{background:var(--brand-light);border-color:var(--brand);transform:translateY(-2px);}
.btn--light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5);}
.btn--light:hover{background:rgba(255,255,255,.24);transform:translateY(-2px);}
.btn--sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn--block{width:100%;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;transition:box-shadow .24s var(--ease);}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(14,23,38,.08);}
.topbar{background:var(--brand-light);border-bottom:1px solid #DCE8FD;}
.topbar__inner{display:flex;align-items:center;gap:16px;min-height:36px;padding-top:6px;padding-bottom:6px;}
.topbar__text{font-size:14px;line-height:1.5;color:#2A4A86;flex:1;}
.topbar__close{width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;color:#2A4A86;flex:none;}
.topbar__close:hover{background:rgba(31,95,216,.12);}
.nav-main{border-bottom:1px solid var(--line);background:#fff;}
.nav-main__inner{display:flex;align-items:center;gap:20px;min-height:72px;padding-top:12px;padding-bottom:12px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand__mark{width:40px;height:40px;flex:none;}
.brand__text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.02em;line-height:1.2;}
.brand__text span{color:var(--brand);}
.nav-search{flex:1;max-width:620px;display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-pill);padding:6px 6px 6px 16px;box-shadow:0 1px 2px rgba(14,23,38,.03);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 6px 20px rgba(31,95,216,.16);transform:translateY(-1px);}
.nav-search__icon{width:20px;height:20px;color:var(--muted);flex:none;}
.nav-search input{flex:1;border:0;outline:none;height:38px;background:transparent;font-size:15px;}
.nav-search input::placeholder{color:#93A1B8;}
.nav-search__btn{height:38px;padding:0 20px;border-radius:var(--radius-pill);background:var(--brand);color:#fff;font-size:14px;font-weight:600;}
.nav-search__btn:hover{background:var(--brand-dark);}
.nav-actions{display:flex;align-items:center;gap:14px;flex:none;}
.nav-login{font-size:15px;font-weight:600;color:var(--text);padding:8px 4px;border-bottom:2px solid transparent;}
.nav-login:hover{color:var(--brand);border-bottom-color:var(--brand);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--radius-sm);border:1px solid var(--line);align-items:center;justify-content:center;}
.nav-toggle span{position:relative;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-chips{background:#fff;border-bottom:1px solid var(--line);}
.chips-inner{display:flex;gap:10px;overflow-x:auto;padding-top:12px;padding-bottom:14px;scrollbar-width:thin;}
.chips-inner::-webkit-scrollbar{height:4px;}
.chips-inner::-webkit-scrollbar-thumb{background:#D5DEEC;border-radius:4px;}
.chip{
  flex:none;display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--radius-pill);
  background:var(--bg);border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--text);
}
.chip:hover{background:var(--brand-light);border-color:#CFDEFB;color:var(--brand-dark);transform:translateY(-1px);}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(31,95,216,.2);}

/* ---------- hero ---------- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(105deg,rgba(11,27,58,.92) 0%,rgba(23,73,172,.82) 48%,rgba(14,23,38,.72) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.page-hero__inner{position:relative;padding:64px 0 72px;max-width:840px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:22px;}
.crumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.crumb span{opacity:.6;}
.page-hero h1{color:#fff;margin-bottom:18px;}
.page-hero__lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.9);max-width:720px;}
.page-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:40px;max-width:760px;}
.hero-stat{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-md);padding:16px 18px;backdrop-filter:blur(2px);}
.hero-stat b{display:block;font-size:26px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-stat small{display:block;margin-top:4px;font-size:13px;color:rgba(255,255,255,.8);}

/* ---------- section ---------- */
.section{padding:64px 0;}
@media (min-width:1024px){.section{padding:88px 0;}}
.section--tight{padding-top:40px;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:32px;}
.section-head h2{position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:.22em;width:4px;height:18px;border-radius:3px;background:var(--brand);}
.section-head p{color:var(--muted);font-size:15px;max-width:640px;margin-top:8px;}
.section-head--plain h2{padding-left:0;}
.section-head--plain h2::before{display:none;}

/* ---------- filter bar ---------- */
.filter-bar{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-1);padding:18px 20px;
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:-34px;position:relative;z-index:5;}
.filter-bar__label{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.06em;}
.filter-chips{display:flex;flex-wrap:wrap;gap:10px;flex:1;}
.filter-chip{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--radius-pill);border:1px solid var(--line);
  background:var(--bg);font-size:14px;font-weight:600;color:var(--text);}
.filter-chip:hover{border-color:#CFDEFB;background:var(--brand-light);color:var(--brand-dark);}
.filter-chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff;}
.filter-bar__count{font-size:14px;color:var(--muted);}
.filter-bar__count b{color:var(--brand);font-variant-numeric:tabular-nums;font-size:17px;}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;align-items:start;}
@media (min-width:1024px){.layout{grid-template-columns:minmax(0,1fr) 348px;gap:32px;}}

/* ---------- schedule list ---------- */
.sched-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-1);overflow:hidden;}
.sched-panel__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 22px;border-bottom:1px solid var(--line);background:#FBFCFE;}
.sched-panel__head h3{font-size:16px;}
.sched-panel__head span{font-size:13px;color:var(--muted);}
.sched-list{display:block;}
.sched-row{display:grid;grid-template-columns:88px minmax(0,1fr) auto;gap:18px;align-items:center;padding:18px 22px;border-bottom:1px solid var(--line);transition:background-color .22s var(--ease);}
.sched-row:last-child{border-bottom:0;}
.sched-row:hover{background:#FAFCFF;}
.sched-date{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;background:var(--brand-light);border-radius:var(--radius-sm);padding:8px 0;}
.sched-date__md{font-size:17px;font-weight:700;color:var(--brand-dark);font-variant-numeric:tabular-nums;line-height:1.2;}
.sched-date__d{font-size:12px;color:#4A6DA8;}
.sched-title{font-size:17px;margin-bottom:6px;}
.sched-title a:hover{color:var(--brand);}
.sched-meta{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:13px;color:var(--muted);}
.sched-meta span{display:inline-flex;align-items:center;gap:6px;font-variant-numeric:tabular-nums;}
.sched-meta span::before{content:"";width:4px;height:4px;border-radius:50%;background:#C3CFE2;}
.sched-side{display:flex;align-items:center;gap:12px;}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;white-space:nowrap;}
.badge--open{background:var(--teal-light);color:#0B8C79;}
.badge--few{background:var(--accent-light);color:#C1571A;}
.badge--full{background:#EEF1F7;color:#7A879C;}
.badge--soon{background:var(--brand-light);color:var(--brand-dark);}
.sched-note{padding:16px 22px;background:#FBFCFE;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}

/* ---------- sidebar cards ---------- */
.side-col{display:flex;flex-direction:column;gap:20px;}
.ticket-card{background:#fff;border:2px solid var(--brand);border-radius:var(--radius-md);box-shadow:var(--shadow-2);overflow:hidden;position:relative;}
.ticket-card__tag{position:absolute;top:0;right:0;background:var(--accent);color:#fff;font-size:12px;font-weight:600;padding:6px 14px;border-bottom-left-radius:12px;}
.ticket-card__body{padding:24px 22px;}
.ticket-card h3{font-size:17px;margin-bottom:6px;}
.ticket-card__desc{font-size:13px;color:var(--muted);line-height:1.7;}
.ticket-price{display:flex;align-items:baseline;gap:6px;margin:16px 0 4px;}
.ticket-price b{font-size:36px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1;}
.ticket-price em{font-style:normal;font-size:14px;color:var(--muted);}
.ticket-sub{font-size:13px;color:var(--muted);margin-bottom:18px;}
.tick-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px;}
.tick-list li{display:flex;gap:10px;font-size:14px;color:var(--text);line-height:1.6;}
.tick-list i{color:var(--teal);font-size:13px;margin-top:5px;flex:none;}
.ticket-seats{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:14px;}
.ticket-seats b{color:var(--accent);font-variant-numeric:tabular-nums;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-1);padding:22px;}
.side-card h3{font-size:16px;margin-bottom:14px;}
.side-list{display:flex;flex-direction:column;gap:12px;}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;font-weight:600;color:var(--text);}
.side-list a:hover{color:var(--brand);transform:translateX(2px);}
.side-list a i{font-size:12px;color:#B4C1D6;}
.side-tip{background:var(--brand-light);border:1px dashed #BFD5FA;border-radius:var(--radius-md);padding:20px;}
.side-tip h3{font-size:15px;margin-bottom:8px;color:var(--brand-dark);}
.side-tip p{font-size:13px;line-height:1.75;color:#3B5B92;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(1,minmax(0,1fr));gap:18px;}
@media (min-width:640px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,minmax(0,1fr));}}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:24px 22px;box-shadow:var(--shadow-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.step__no{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--brand);color:#fff;font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:14px;}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.75;color:var(--muted);}

/* ---------- faq ---------- */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-1);padding:8px 24px;}
.faq details{border-bottom:1px solid var(--line);}
.faq details:last-child{border-bottom:0;}
.faq summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";flex:none;width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;background:var(--brand-light);color:var(--brand);font-size:18px;font-weight:500;line-height:1;transition:transform .22s var(--ease),background-color .22s var(--ease);}
.faq details[open] summary::after{content:"–";transform:rotate(180deg);background:var(--brand);color:#fff;}
.faq summary:hover{color:var(--brand);}
.faq p{font-size:15px;color:var(--muted);line-height:1.85;padding:0 40px 20px 0;}

/* ---------- cta ---------- */
.cta-band{background:linear-gradient(180deg,var(--brand-light) 0%,#F8FBFF 100%);border-top:1px solid #DCE8FD;border-bottom:1px solid #DCE8FD;}
.cta-band__inner{display:grid;grid-template-columns:minmax(0,1fr);gap:26px;align-items:center;padding:56px 0;}
@media (min-width:1024px){.cta-band__inner{grid-template-columns:minmax(0,1fr) auto;padding:66px 0;}}
.cta-band h2{margin-bottom:12px;}
.cta-band p{font-size:15px;color:#41598A;max-width:660px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:20px;}
.cta-stats div b{display:block;font-size:22px;color:var(--brand-dark);font-variant-numeric:tabular-nums;line-height:1.2;}
.cta-stats div small{font-size:13px;color:var(--muted);}

/* ---------- footer ---------- */
.site-footer{background:#F1F5FB;border-top:1px solid var(--line);margin-top:0;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;padding:56px 0 36px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink);margin-bottom:16px;}
.footer-brand em{font-style:normal;color:var(--brand);}
.footer-desc{font-size:14px;line-height:1.85;color:var(--muted);max-width:380px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--ink);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14px;color:var(--muted);display:inline-block;}
.footer-col ul a:hover{color:var(--brand);transform:translateX(2px);}
.footer-contact li{display:flex;flex-direction:column;gap:2px;}
.footer-contact b{font-size:14px;color:var(--ink);font-weight:600;}
.footer-contact span{font-size:14px;color:var(--muted);}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--muted);}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-main__inner{flex-wrap:wrap;gap:14px;min-height:64px;}
  .brand{order:1;}
  .nav-toggle{display:inline-flex;order:2;margin-left:auto;}
  .nav-actions{order:3;margin-left:0;}
  .nav-search{order:4;flex:1 0 100%;max-width:none;}
  .nav-chips{display:none;}
  .nav-chips.is-open{display:block;}
  .chips-inner{flex-direction:column;overflow:visible;gap:8px;padding-bottom:16px;}
  .chip{height:44px;justify-content:center;border-radius:var(--radius-sm);}
  .sched-row{grid-template-columns:76px minmax(0,1fr);row-gap:14px;}
  .sched-side{grid-column:1 / -1;justify-content:space-between;}
}
@media (max-width:639px){
  .topbar__text{font-size:13px;}
  .page-hero__inner{padding:44px 0 56px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
  .hero-stat:last-child{grid-column:1 / -1;}
  .filter-bar{margin-top:-24px;padding:16px;}
  .sched-panel__head{flex-direction:column;align-items:flex-start;gap:6px;}
  .sched-row{padding:16px;}
  .sched-date{flex-direction:row;gap:8px;padding:10px 0;justify-content:center;}
  .sched-date__md{font-size:15px;}
  .faq{padding:4px 18px;}
  .faq p{padding-right:0;}
  .cta-actions .btn{width:100%;}
  .footer-grid{padding-top:44px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}

/* roulang page: category2 */
:root{
  --brand:#1F5FD8;
  --brand-dark:#1749AC;
  --brand-light:#EAF1FE;
  --accent:#FF7A2F;
  --accent-light:#FFF1E7;
  --teal:#12B39A;
  --teal-light:#E6F7F4;
  --ink:#0E1726;
  --text:#33415A;
  --muted:#6B7A93;
  --line:#E3E9F3;
  --bg:#F5F8FD;
  --surface:#FFFFFF;
  --danger:#D93B3B;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,23,38,.04), 0 8px 24px rgba(31,95,216,.06);
  --sh-2:0 2px 6px rgba(14,23,38,.07), 0 14px 34px rgba(31,95,216,.10);
  --sh-3:0 10px 24px rgba(14,23,38,.10), 0 26px 64px rgba(14,23,38,.14);
  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:24px; --sp-5:32px; --sp-6:48px; --sp-7:64px; --sp-8:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,"Segoe UI",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
}
h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none;margin-left:0}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),transform .22s var(--ease)}
a:hover{color:var(--brand-dark)}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;transition:background-color .22s var(--ease),color .22s var(--ease),transform .18s var(--ease),box-shadow .22s var(--ease)}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}
@media (min-width:1440px){.container{max-width:1280px}}

/* ============ 顶部工具条 ============ */
.topbar{background:var(--brand-light);border-bottom:1px solid var(--line)}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding-top:6px;padding-bottom:6px}
.topbar__text{font-size:14px;color:var(--brand-dark);line-height:1.5;margin:0}
.topbar__close{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:var(--r-pill);color:var(--brand-dark);flex:0 0 auto}
.topbar__close:hover{background:rgba(31,95,216,.12)}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .24s var(--ease)}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.nav-main__inner{
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto auto;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand__mark{width:40px;height:40px;flex:0 0 auto}
.brand__text{font-size:19px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.brand__text span{color:var(--brand)}

.nav-search{
  display:flex;align-items:center;gap:10px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:5px 6px 5px 16px;
  max-width:620px;
  width:100%;
  justify-self:center;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease);
}
.nav-search:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,95,216,.10)}
.nav-search__icon{width:18px;height:18px;color:var(--muted);flex:0 0 auto}
.nav-search input[type="search"]{
  flex:1 1 auto;min-width:0;height:38px;border:0;background:transparent;
  font-size:15px;color:var(--ink);outline:none;
  -webkit-appearance:none;appearance:none;
}
.nav-search input[type="search"]::placeholder{color:var(--muted)}
.nav-search__btn{
  flex:0 0 auto;height:38px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
}
.nav-search__btn:hover{background:var(--brand-dark)}
.nav-search__btn:active{transform:translateY(1px)}

.nav-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.nav-login{font-size:15px;font-weight:600;color:var(--ink)}
.nav-login:hover{color:var(--brand)}

.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle:hover{border-color:var(--brand)}

.nav-chips{border-top:1px solid var(--line);background:#fff}
.chips-inner{display:flex;align-items:center;gap:10px;padding-top:10px;padding-bottom:10px;overflow-x:auto;scrollbar-width:none}
.chips-inner::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:var(--r-pill);background:var(--bg);border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--text);white-space:nowrap;
}
.chip:hover{background:var(--brand-light);border-color:#CBD9F6;color:var(--brand-dark)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}
.chip.is-active:hover{background:var(--brand-dark);color:#fff}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background-color .22s var(--ease),color .22s var(--ease),transform .18s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(31,95,216,.22)}
.btn--primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(31,95,216,.26)}
.btn--primary:active{transform:translateY(1px)}
.btn--accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,47,.24)}
.btn--accent:hover{background:#E9661C;color:#fff;transform:translateY(-2px)}
.btn--ghost{background:#fff;color:var(--brand);border-color:#CBD9F6}
.btn--ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}

/* ============ 通用标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;line-height:1;
}
.badge--brand{background:var(--brand-light);color:var(--brand-dark)}
.badge--accent{background:var(--accent-light);color:#B24E12}
.badge--teal{background:var(--teal-light);color:#0C8571}

/* ============ 首屏 ============ */
.page-hero{position:relative;overflow:hidden;background:var(--brand-light);border-bottom:1px solid var(--line)}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.20;
}
.page-hero__inner{position:relative;z-index:1;padding-top:24px;padding-bottom:56px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand)}
.crumbs span.sep{color:#B7C3D6}
.crumbs .current{color:var(--ink);font-weight:600}

.page-hero h1{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.22;letter-spacing:-.02em;font-weight:700;color:var(--ink);
  margin:16px 0 16px;max-width:22ch;
}
.page-hero__sub{font-size:17px;line-height:1.8;color:var(--text);max-width:60ch;margin-bottom:26px}
.hero-search{
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:8px 8px 8px 22px;max-width:700px;box-shadow:var(--sh-2);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.hero-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(31,95,216,.10),var(--sh-2)}
.hero-search__icon{width:20px;height:20px;color:var(--brand);flex:0 0 auto}
.hero-search input{
  flex:1 1 auto;min-width:0;height:46px;border:0;background:transparent;
  font-size:16px;color:var(--ink);outline:none;-webkit-appearance:none;appearance:none;
}
.hero-search input::placeholder{color:var(--muted)}
.hero-search .btn{border-radius:var(--r-pill);flex:0 0 auto}

.hero-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:14px;color:var(--muted)}
.hero-tags a{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);border:1px solid var(--line);color:var(--text);font-size:13px;font-weight:500;
}
.hero-tags a:hover{background:#fff;border-color:var(--brand);color:var(--brand-dark)}

.hero-stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:34px;padding-top:24px;border-top:1px solid rgba(31,95,216,.16)}
.hero-stats div{min-width:130px}
.hero-stats b{display:block;font-size:22px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.hero-stats span{display:block;font-size:13px;color:var(--muted);margin-top:2px}

/* ============ 板块 ============ */
.section{padding-top:var(--sp-8);padding-bottom:var(--sp-8)}
.section--tight{padding-top:56px;padding-bottom:56px}
.section--plain{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:36px;max-width:70ch}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.04em}
.section-title{position:relative;font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700;color:var(--ink);letter-spacing:-.01em;padding-left:16px;margin-top:14px}
.section-title::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:18px;border-radius:2px;background:var(--brand)}
.section-sub{margin-top:14px;font-size:16px;color:var(--muted);padding-left:16px}

/* ============ 登录四步 ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 22px 24px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#CBD9F6}
.step__num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand-dark);
  font-size:16px;font-weight:700;margin-bottom:16px;
}
.step.is-current .step__num{background:var(--accent);color:#fff}
.step__title{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:8px}
.step__desc{font-size:14px;line-height:1.75;color:var(--muted)}
.step__meta{margin-top:14px;font-size:13px;font-weight:600;color:var(--teal)}

/* ============ FAQ 区 ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,2.15fr) minmax(0,1fr);gap:40px;align-items:start}
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 0;text-align:left;font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  position:relative;flex:0 0 auto;width:26px;height:26px;border-radius:var(--r-pill);
  background:var(--brand-light);margin-top:1px;transition:background-color .22s var(--ease),transform .22s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand-dark);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px;transition:opacity .2s var(--ease)}
.faq-item.is-open .faq-icon{background:var(--brand)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:#fff}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-item.is-open .faq-q{color:var(--brand-dark)}
.faq-a{display:none;padding:0 34px 22px 0}
.faq-item.is-open .faq-a{display:block}
.faq-a p{font-size:15px;line-height:1.85;color:var(--muted)}
.faq-a p + p{margin-top:10px}
.faq-a .inline-link{font-size:15px;font-weight:600;display:inline-block;margin-top:10px}

/* ============ 侧栏 ============ */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--sh-1);
}
.side-card + .side-card{margin-top:20px}
.side-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:6px}
.side-card p.side-hint{font-size:13.5px;color:var(--muted);margin-bottom:16px}
.side-list li + li{margin-top:2px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 4px;border-bottom:1px dashed var(--line);font-size:15px;font-weight:600;color:var(--text);
}
.side-list li:last-child a{border-bottom:0}
.side-list a:hover{color:var(--brand);transform:translateX(2px)}
.side-list .arrow{color:var(--muted);flex:0 0 auto;transition:transform .22s var(--ease),color .22s var(--ease)}
.side-list a:hover .arrow{color:var(--brand);transform:translateX(3px)}
.side-note{margin-top:18px;padding:14px 16px;border-radius:var(--r-sm);background:var(--accent-light);font-size:13.5px;line-height:1.7;color:#8F430F}

/* ============ 深色自检面板 ============ */
.dark-band{background:var(--ink);color:#fff;padding-top:var(--sp-8);padding-bottom:var(--sp-8)}
.dark-band .section-title{color:#fff}
.dark-band .section-title::before{background:var(--accent)}
.dark-band .section-sub{color:#9EB0CB}
.dark-band .eyebrow{color:#7FB0FF}
.check-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.check-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-md);padding:22px 20px;
  transition:background-color .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
}
.check-card:hover{background:rgba(255,255,255,.10);transform:translateY(-3px);border-color:rgba(127,176,255,.5)}
.check-card h3{font-size:16px;font-weight:600;color:#fff;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.check-card h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--teal);flex:0 0 auto}
.check-card p{font-size:14px;line-height:1.75;color:#9EB0CB}
.check-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:30px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12)}
.check-foot span{font-size:14px;color:#9EB0CB}
.check-foot b{color:#fff;font-size:15px}

/* ============ 图文块 ============ */
.prep{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:48px;align-items:center}
.prep__media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--brand-light)}
.prep__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.prep__list{margin-top:22px}
.prep__list li{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
.prep__list li:last-child{border-bottom:0}
.prep__list b{display:block;color:var(--ink);font-weight:600}
.prep__list span{color:var(--muted);font-size:14px}
.tick{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--teal-light);
  display:inline-flex;align-items:center;justify-content:center;margin-top:4px;
}
.tick svg{width:12px;height:12px;color:var(--teal)}

/* ============ 联系区 ============ */
.contact-band{
  background:var(--brand-light);
  border:1px solid #D3E0FA;border-radius:var(--r-lg);
  padding:44px 40px;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:40px;align-items:center;
}
.contact-band h2{font-size:26px;font-weight:700;color:var(--ink);letter-spacing:-.01em;margin-bottom:12px}
.contact-band p{font-size:15.5px;color:var(--text);max-width:52ch}
.contact-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px}
.contact-cards{display:grid;gap:14px}
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px 20px;
  display:flex;gap:14px;align-items:flex-start;box-shadow:var(--sh-1);
}
.contact-card .ico{
  flex:0 0 auto;width:38px;height:38px;border-radius:var(--r-sm);background:var(--brand-light);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand);
}
.contact-card b{display:block;font-size:15px;color:var(--ink);font-weight:600}
.contact-card span{font-size:14px;color:var(--muted)}

/* ============ 页脚 ============ */
.site-footer{background:#F1F5FB;border-top:1px solid var(--line);padding-top:56px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.footer-col h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);margin-bottom:14px}
.footer-brand span{font-size:17px;font-weight:700}
.footer-brand em{font-style:normal;color:var(--brand)}
.footer-desc{font-size:14px;line-height:1.8;color:var(--muted);max-width:36ch}
.footer-col ul li + li{margin-top:10px}
.footer-col ul a{font-size:14.5px;color:var(--text);display:inline-block;transition:color .22s var(--ease),transform .22s var(--ease)}
.footer-col ul a:hover{color:var(--brand);transform:translateX(2px)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--muted)}
.footer-contact b{color:var(--ink);font-weight:600;min-width:64px}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:20px;padding-bottom:28px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-main__inner{grid-template-columns:1fr auto;gap:12px;min-height:0;padding-top:12px;padding-bottom:12px}
  .nav-search{grid-column:1 / -1;order:3;max-width:none;margin-top:4px}
  .nav-actions{grid-column:1 / -1;order:4;justify-content:flex-start;gap:14px}
  .nav-toggle{display:inline-flex;justify-self:end}
  .nav-chips{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);border-top:0}
  .nav-chips.is-open{max-height:420px;border-top:1px solid var(--line)}
  .chips-inner{flex-direction:column;align-items:stretch;padding-top:14px;padding-bottom:16px;gap:8px;overflow:visible}
  .chip{height:44px;justify-content:center}

  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .check-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .prep{grid-template-columns:minmax(0,1fr);gap:32px}
  .contact-band{grid-template-columns:minmax(0,1fr);padding:34px 28px;gap:28px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}

@media (max-width:640px){
  .section{padding-top:52px;padding-bottom:52px}
  .section--tight{padding-top:44px;padding-bottom:44px}
  .page-hero__inner{padding-top:20px;padding-bottom:44px}
  .page-hero h1{max-width:none}
  .hero-search{flex-wrap:wrap;border-radius:var(--r-md);padding:12px 14px;gap:10px}
  .hero-search input{flex:1 1 100%;height:40px;padding:0}
  .hero-search .btn{width:100%;height:44px}
  .hero-stats{gap:20px;justify-content:space-between}
  .hero-stats div{min-width:0;flex:1 1 40%}
  .steps{grid-template-columns:minmax(0,1fr)}
  .faq-grid{grid-template-columns:minmax(0,1fr)}
  .faq-q{font-size:16px}
  .faq-a{padding-right:0}
  .check-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .brand__text{font-size:17px}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
/* ============ 设计令牌 ============ */
:root{
  --brand:#1F5FD8;
  --brand-dark:#1749AC;
  --brand-light:#EAF1FE;
  --accent:#FF7A2F;
  --accent-light:#FFF1E7;
  --mint:#12B39A;
  --danger:#D93B3B;
  --ink:#0E1726;
  --text:#33415A;
  --muted:#6B7A93;
  --line:#E3E9F3;
  --bg:#F5F8FD;
  --surface:#FFFFFF;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,23,38,.04), 0 8px 24px rgba(31,95,216,.06);
  --sh-2:0 2px 6px rgba(14,23,38,.06), 0 16px 40px rgba(31,95,216,.10);
  --sh-3:0 8px 20px rgba(14,23,38,.10), 0 28px 60px rgba(31,95,216,.16);
  --s1:8px; --s2:12px; --s3:16px; --s4:24px; --s5:32px; --s6:48px; --s7:64px; --s8:88px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
@media (min-width:1440px){ :root{ --container:1280px; } }

/* ============ 基础重置 ============ */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
h1,h2,h3,h4{ margin:0; color:var(--ink); font-weight:700; line-height:1.32; letter-spacing:-.01em; }
h1{ font-size:clamp(28px,4.2vw,44px); line-height:1.22; letter-spacing:-.02em; }
h2{ font-size:clamp(22px,2.6vw,30px); }
h3{ font-size:18px; font-weight:600; }
p{ margin:0 0 18px; }
p:last-child{ margin-bottom:0; }
ul,ol{ margin:0; padding:0; list-style:none; }
a{ color:var(--brand); text-decoration:none; transition:color .2s var(--ease); }
a:hover{ color:var(--brand-dark); }
img{ display:block; max-width:100%; height:auto; }
button{ font-family:inherit; font-size:inherit; cursor:pointer; }
input,textarea,select{ font-family:inherit; font-size:15px; }
:focus-visible{ outline:2px solid var(--brand); outline-offset:2px; }
.show-for-sr{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

/* ============ 容器与板块 ============ */
.container{ width:100%; max-width:var(--container); margin:0 auto; padding:0 20px; }
@media (min-width:1024px){ .container{ padding:0 32px; } }

.section{ padding:88px 0; }
.section--tight{ padding:56px 0; }
.section__head{ margin-bottom:36px; max-width:760px; }
.section__title{ position:relative; padding-left:16px; }
.section__title::before{
  content:""; position:absolute; left:0; top:7px; bottom:7px; width:4px;
  border-radius:2px; background:var(--brand);
}
.section__desc{ margin:14px 0 0; font-size:15px; color:var(--muted); line-height:1.85; }

.divider{ height:1px; background:var(--line); border:0; margin:0; }

/* ============ 按钮 ============ */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 26px; border-radius:var(--r-sm);
  font-size:15px; font-weight:600; line-height:1; border:1px solid transparent;
  white-space:nowrap; cursor:pointer;
  transition:transform .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn--primary{ background:var(--brand); color:#fff; box-shadow:0 8px 20px rgba(31,95,216,.22); }
.btn--primary:hover{ background:var(--brand-dark); color:#fff; transform:translateY(-2px); box-shadow:0 12px 26px rgba(31,95,216,.28); }
.btn--primary:active{ transform:translateY(0); }
.btn--accent{ background:var(--accent); color:#fff; box-shadow:0 8px 20px rgba(255,122,47,.26); }
.btn--accent:hover{ background:#E96A20; color:#fff; transform:translateY(-2px); }
.btn--ghost{ background:#fff; color:var(--brand); border-color:#C9DAF8; }
.btn--ghost:hover{ color:var(--brand-dark); border-color:var(--brand); transform:translateY(-2px); box-shadow:var(--sh-1); }
.btn--sm{ height:40px; padding:0 18px; font-size:14px; }

/* ============ 顶部工具条 ============ */
.site-header{
  position:sticky; top:0; z-index:60;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-scrolled{ box-shadow:var(--sh-1); border-bottom-color:var(--line); }
.topbar{ background:var(--brand-light); font-size:14px; color:var(--text); }
.topbar__inner{ display:flex; align-items:center; justify-content:space-between; gap:16px; min-height:36px; }
.topbar__text{ margin:0; font-size:14px; line-height:1.5; padding:6px 0; }
.topbar__close{
  flex:0 0 auto; width:28px; height:28px; display:inline-flex; align-items:center; justify-content:center;
  border:0; border-radius:var(--r-pill); background:transparent; color:var(--muted);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.topbar__close:hover{ background:#fff; color:var(--brand); }
.topbar.is-hidden{ display:none; }

/* ============ 主导航 ============ */
.nav-main__inner{ display:flex; align-items:center; gap:24px; min-height:72px; }
.brand{ display:inline-flex; align-items:center; gap:10px; flex:0 0 auto; }
.brand__mark{ width:40px; height:40px; flex:0 0 auto; }
.brand__text{ font-size:18px; font-weight:700; color:var(--ink); letter-spacing:-.01em; white-space:nowrap; }
.brand__text span{ color:var(--brand); }

.nav-search{
  display:flex; align-items:center; gap:8px;
  flex:1 1 auto; max-width:560px; margin:0 auto;
  padding:6px 6px 6px 16px;
  background:#F5F8FD; border:1px solid var(--line); border-radius:var(--r-pill);
  transition:background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search:focus-within{ background:#fff; border-color:var(--brand); box-shadow:0 0 0 4px rgba(31,95,216,.08),var(--sh-1); }
.nav-search__icon{ width:18px; height:18px; color:var(--muted); flex:0 0 auto; }
.nav-search input[type="search"]{
  flex:1 1 auto; height:36px; margin:0; padding:0; border:0; background:transparent;
  color:var(--ink); font-size:15px; box-shadow:none;
}
.nav-search input[type="search"]:focus{ outline:none; box-shadow:none; }
.nav-search input[type="search"]::placeholder{ color:var(--muted); font-size:14px; }
.nav-search__btn{
  flex:0 0 auto; height:36px; padding:0 18px; border:0; border-radius:var(--r-pill);
  background:var(--brand); color:#fff; font-size:14px; font-weight:600;
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.nav-search__btn:hover{ background:var(--brand-dark); }
.nav-search__btn:active{ transform:translateY(1px); }

.nav-actions{ display:flex; align-items:center; gap:16px; flex:0 0 auto; }
.nav-login{ font-size:15px; font-weight:600; color:var(--text); }
.nav-login:hover{ color:var(--brand); }

.nav-toggle{
  display:none; width:48px; height:48px; border:1px solid var(--line); border-radius:var(--r-sm);
  background:#fff; align-items:center; justify-content:center; flex:0 0 auto;
}
.nav-toggle span{ position:relative; display:block; width:18px; height:2px; background:var(--ink); border-radius:2px; }
.nav-toggle span::before,.nav-toggle span::after{
  content:""; position:absolute; left:0; width:18px; height:2px; background:var(--ink); border-radius:2px;
}
.nav-toggle span::before{ top:-6px; }
.nav-toggle span::after{ top:6px; }

.nav-chips{ border-top:1px solid var(--line); background:#fff; }
.chips-inner{
  display:flex; align-items:center; gap:10px;
  padding-top:10px; padding-bottom:10px;
  overflow-x:auto; scrollbar-width:none;
}
.chips-inner::-webkit-scrollbar{ display:none; }
.chip{
  flex:0 0 auto; display:inline-flex; align-items:center; min-height:36px;
  padding:8px 16px; border-radius:var(--r-pill);
  background:#F1F5FB; color:var(--text); font-size:14px; font-weight:600;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),box-shadow .2s var(--ease);
}
.chip:hover{ background:#E4ECFB; color:var(--brand); }
.chip.is-active{ background:var(--brand); color:#fff; box-shadow:0 6px 16px rgba(31,95,216,.24); }

/* ============ 内页首屏 ============ */
.page-hero{
  position:relative;
  background-image:
    linear-gradient(102deg, rgba(245,248,253,.97) 0%, rgba(245,248,253,.9) 40%, rgba(234,241,254,.66) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover,cover;
  background-position:center,center;
  border-bottom:1px solid var(--line);
}
.page-hero__inner{ padding:52px 0 60px; max-width:860px; }
.breadcrumb{ display:flex; align-items:center; gap:8px; font-size:13px; color:var(--muted); margin-bottom:20px; }
.breadcrumb a{ color:var(--muted); }
.breadcrumb a:hover{ color:var(--brand); }
.breadcrumb__current{ color:var(--text); font-weight:600; }
.hero-eyebrow{
  display:inline-flex; align-items:center; gap:8px; margin-bottom:18px;
  padding:6px 14px; border-radius:var(--r-pill);
  background:#fff; border:1px solid #D5E2FA; color:var(--brand);
  font-size:13px; font-weight:600; box-shadow:var(--sh-1);
}
.hero-eyebrow i{ width:7px; height:7px; border-radius:50%; background:var(--accent); display:block; }
.hero-lede{ margin:20px 0 0; font-size:17px; line-height:1.9; color:var(--text); max-width:720px; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:30px; }
.hero-stats{
  display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:20px;
  margin-top:34px; padding-top:26px; border-top:1px solid rgba(31,95,216,.16);
}
.hero-stat__value{ display:block; font-size:24px; font-weight:700; color:var(--ink); letter-spacing:-.01em; }
.hero-stat__label{ display:block; margin-top:4px; font-size:13px; color:var(--muted); }

/* ============ 主体布局 ============ */
.main-layout{ display:flex; flex-wrap:wrap; align-items:flex-start; }
.main-col{ min-width:0; }
.sidebar{ order:2; }
.main-col{ order:1; }
@media (min-width:1024px){
  .sidebar{ order:1; }
  .main-col{ order:2; }
}

.anchor-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-md);
  padding:20px; box-shadow:var(--sh-1); margin-bottom:20px;
}
@media (min-width:1024px){ .anchor-card{ position:sticky; top:126px; } }
.anchor-card__title{ font-size:15px; margin-bottom:14px; color:var(--ink); }
.anchor-list li + li{ margin-top:4px; }
.anchor-list a{
  display:block; padding:9px 12px; border-radius:var(--r-sm);
  font-size:14px; color:var(--text); border-left:2px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.anchor-list a:hover{ background:var(--brand-light); color:var(--brand); border-left-color:var(--brand); transform:translateX(2px); }
.anchor-list a.is-current{ background:var(--brand-light); color:var(--brand); border-left-color:var(--brand); font-weight:600; }

.side-subscribe{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-md);
  padding:22px; box-shadow:var(--sh-1);
}
.side-subscribe h3{ font-size:16px; margin-bottom:10px; }
.side-subscribe p{ font-size:14px; color:var(--muted); line-height:1.8; margin-bottom:16px; }
.tag-list{ display:flex; flex-wrap:wrap; gap:8px; }
.tag{
  display:inline-flex; align-items:center; padding:5px 12px; border-radius:var(--r-pill);
  background:#F1F5FB; color:var(--text); font-size:13px;
}
.tag:hover{ background:var(--accent-light); color:#B4531A; }

/* ============ 专题卡片网格 ============ */
.topic-grid.grid-margin-x{ margin-left:-12px; margin-right:-12px; }
.topic-grid.grid-margin-x > .cell{ margin:0 12px 24px; width:calc(100% - 24px); }
@media (min-width:640px){
  .topic-grid.grid-margin-x > .medium-6{ width:calc(50% - 24px); }
}
.main-layout.grid-margin-x{ margin-left:-12px; margin-right:-12px; }
.main-layout.grid-margin-x > .cell{ margin-left:12px; margin-right:12px; margin-bottom:24px; width:calc(100% - 24px); }
@media (min-width:1024px){
  .main-layout.grid-margin-x > .large-3{ width:calc(25% - 24px); }
  .main-layout.grid-margin-x > .large-9{ width:calc(75% - 24px); }
}

.topic-card{
  display:flex; flex-direction:column; height:100%;
  background:#fff; border:1px solid var(--line); border-radius:var(--r-md);
  overflow:hidden; box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.topic-card:hover{ transform:translateY(-3px); box-shadow:var(--sh-2); border-color:#D5E2FA; }
.topic-card__media{ position:relative; aspect-ratio:16/9; overflow:hidden; background:var(--brand-light); }
.topic-card__media img{ width:100%; height:100%; object-fit:cover; transition:transform .5s var(--ease); }
.topic-card:hover .topic-card__media img{ transform:scale(1.04); }
.topic-card__tag{
  position:absolute; left:14px; top:14px;
  padding:5px 12px; border-radius:var(--r-pill);
  background:rgba(14,23,38,.76); color:#fff; font-size:12px; font-weight:600;
  backdrop-filter:blur(4px);
}
.topic-card__body{ display:flex; flex-direction:column; flex:1 1 auto; gap:12px; padding:20px; }
.topic-card__title{ font-size:18px; line-height:1.5; }
.topic-card__title a{ color:var(--ink); }
.topic-card__title a:hover{ color:var(--brand); }
.topic-card__text{ font-size:14px; line-height:1.78; color:var(--muted); margin:0; }
.topic-card__points{ display:flex; flex-direction:column; gap:6px; font-size:13px; color:var(--text); }
.topic-card__points li{ position:relative; padding-left:16px; line-height:1.7; }
.topic-card__points li::before{
  content:""; position:absolute; left:0; top:8px; width:6px; height:6px;
  border-radius:50%; background:var(--accent);
}
.topic-card__meta{
  margin-top:auto; padding-top:14px; border-top:1px dashed var(--line);
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  font-size:12.5px; color:var(--muted);
}

/* ============ 分页 ============ */
.pager{ display:flex; flex-wrap:wrap; align-items:center; justify-content:center; gap:8px; margin-top:8px; }
.pager__item{
  min-width:40px; height:40px; padding:0 12px;
  display:inline-flex; align-items:center; justify-content:center;
  border:1px solid var(--line); border-radius:var(--r-sm);
  background:#fff; color:var(--text); font-size:14px; font-weight:600;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.pager__item:hover{ border-color:var(--brand); color:var(--brand); transform:translateY(-2px); }
.pager__item.is-current{ background:var(--brand); border-color:var(--brand); color:#fff; }
.pager__next{ border-color:#C9DAF8; color:var(--brand); }

/* ============ 阅读路径 ============ */
.path-grid{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:20px; }
.path-item{
  background:#fff; border:1px solid var(--line); border-left:3px solid var(--brand);
  border-radius:12px; padding:24px;
}
.path-item:nth-child(2){ border-left-color:var(--accent); }
.path-item:nth-child(3){ border-left-color:var(--mint); }
.path-item__no{ font-size:13px; font-weight:700; color:var(--brand); letter-spacing:.08em; }
.path-item:nth-child(2) .path-item__no{ color:var(--accent); }
.path-item:nth-child(3) .path-item__no{ color:var(--mint); }
.path-item h3{ font-size:17px; margin:10px 0 8px; }
.path-item p{ margin:0; font-size:14px; color:var(--muted); line-height:1.82; }

/* ============ 深色观察板 ============ */
.hud-section{ background:var(--bg); }
.hud{
  position:relative; overflow:hidden;
  background:#0E1726; border-radius:var(--r-lg); padding:44px;
  color:#C6D2EA;
}
.hud::after{
  content:""; position:absolute; inset:0; pointer-events:none; opacity:.34;
  background-image:repeating-linear-gradient(115deg, rgba(31,95,216,.22) 0 2px, transparent 2px 24px);
}
.hud > *{ position:relative; z-index:1; }
.hud__head{ max-width:680px; }
.hud__head h2{ color:#fff; }
.hud__head p{ margin:14px 0 0; font-size:15px; line-height:1.85; color:#9FB0CE; }
.hud__grid{ display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:18px; margin-top:32px; }
.hud-stat{
  background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-md); padding:18px;
}
.hud-stat__label{ display:block; font-size:13px; color:#9FB0CE; }
.hud-stat__value{ display:block; margin:8px 0 6px; font-size:26px; font-weight:700; color:#fff; letter-spacing:-.01em; }
.hud-stat__note{ display:block; font-size:12.5px; color:#7C8CA8; line-height:1.6; }
.hud__bars{ display:grid; gap:14px; margin-top:30px; }
.bar-row{ display:grid; grid-template-columns:170px 1fr 56px; gap:16px; align-items:center; font-size:13px; }
.bar-label{ color:#9FB0CE; }
.bar-track{ height:8px; border-radius:var(--r-pill); background:rgba(255,255,255,.08); overflow:hidden; }
.bar-fill{ display:block; height:100%; border-radius:var(--r-pill); background:linear-gradient(90deg,var(--brand),var(--mint)); }
.bar-fill--accent{ background:linear-gradient(90deg,var(--accent),#FFB27A); }
.bar-value{ text-align:right; color:#fff; font-weight:600; }

/* ============ 订阅与投稿 ============ */
.subscribe{ display:grid; grid-template-columns:1.15fr .85fr; gap:24px; }
.subscribe__card{
  background:#fff; border:1px solid var(--line); border-radius:16px;
  padding:32px; box-shadow:var(--sh-1);
}
.subscribe__card h2{ font-size:clamp(20px,2.2vw,26px); }
.subscribe__card > p{ margin-top:14px; font-size:15px; color:var(--muted); line-height:1.85; }
.subscribe__card--media{
  background-image:
    linear-gradient(160deg, rgba(14,23,38,.86) 0%, rgba(31,95,216,.72) 100%),
    url('/assets/images/backpic/back-3.png');
  background-size:cover,cover; background-position:center,center;
  border:0; color:#E8EFFC;
}
.subscribe__card--media h2{ color:#fff; }
.subscribe__card--media p{ color:#C4D2EC; }
.field-row{ display:grid; grid-template-columns:1fr auto; gap:12px; margin-top:22px; }
.form-input{
  width:100%; height:48px; padding:0 16px;
  border:1px solid var(--line); border-radius:var(--r-sm);
  background:#fff; color:var(--ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-input::placeholder{ color:var(--muted); }
.form-input:focus{ outline:none; border-color:var(--brand); box-shadow:0 0 0 4px rgba(31,95,216,.08); }
.form-hint{ margin-top:12px; font-size:13px; color:var(--muted); line-height:1.7; }
.brand-list{ margin-top:20px; display:grid; gap:10px; }
.brand-list li{ position:relative; padding-left:18px; font-size:14px; color:#D6E1F6; }
.brand-list li::before{
  content:""; position:absolute; left:0; top:9px; width:7px; height:7px;
  border-radius:2px; background:var(--accent); transform:rotate(45deg);
}

/* ============ FAQ ============ */
.faq-wrap{ max-width:900px; }
.accordion{ margin:0; background:transparent; border:0; list-style:none; }
.accordion-item{ border:0; border-bottom:1px solid var(--line); background:transparent; }
.accordion-item:first-child{ border-top:1px solid var(--line); }
.accordion-title{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:22px 0; margin:0; border:0; background:transparent;
  font-size:17px; font-weight:600; color:var(--ink); line-height:1.5;
  transition:color .2s var(--ease);
}
.accordion-title:hover{ color:var(--brand); background:transparent; }
.accordion-title::before{
  content:"+"; position:static; order:2; flex:0 0 auto;
  display:inline-flex; align-items:center; justify-content:center;
  width:28px; height:28px; margin:0; border:0;
  border-radius:8px; background:var(--brand-light); color:var(--brand);
  font-size:18px; font-weight:600; line-height:1; transform:none;
}
.accordion-item.is-active .accordion-title::before{ content:"−"; background:var(--brand); color:#fff; }
.accordion-content{
  padding:0 0 22px; border:0; background:transparent;
  font-size:15px; line-height:1.85; color:var(--muted);
}
.accordion-content p{ margin-bottom:12px; }
.accordion-content p:last-child{ margin-bottom:0; }

/* ============ CTA 区 ============ */
.cta-band{
  background:var(--brand-light);
  border-top:1px solid #DCE7FB; border-bottom:1px solid #DCE7FB;
}
.cta-band__inner{
  display:flex; align-items:center; justify-content:space-between; gap:32px;
  padding:56px 0;
}
.cta-band__text{ max-width:640px; }
.cta-band__text h2{ font-size:clamp(22px,2.4vw,28px); }
.cta-band__text p{ margin:12px 0 0; font-size:15px; color:var(--text); }
.cta-band__actions{ display:flex; flex-wrap:wrap; gap:14px; flex:0 0 auto; }

/* ============ 页脚 ============ */
.site-footer{ background:#F1F5FB; border-top:1px solid var(--line); padding-top:64px; }
.footer-grid{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1.2fr; gap:32px; }
.footer-brand{
  display:inline-flex; align-items:center; gap:10px; margin-bottom:16px;
  font-size:17px; font-weight:700; color:var(--ink);
}
.footer-brand em{ font-style:normal; color:var(--brand); }
.footer-desc{ margin:0; max-width:330px; font-size:14px; line-height:1.85; color:var(--muted); }
.footer-col h4{ font-size:15px; margin-bottom:16px; }
.footer-col ul li + li{ margin-top:10px; }
.footer-col ul a{ display:inline-block; font-size:14px; color:var(--text); }
.footer-col ul a:hover{ color:var(--brand); transform:translateX(2px); }
.footer-contact li{ display:flex; gap:10px; font-size:14px; color:var(--muted); }
.footer-contact b{ flex:0 0 auto; font-weight:600; color:var(--ink); }
.footer-bottom{
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:14px;
  margin-top:48px; padding:20px 0 28px;
  border-top:1px solid #E1E8F4; font-size:13px; color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-main__inner{ flex-wrap:wrap; padding:12px 0; row-gap:12px; }
  .brand{ order:1; }
  .nav-actions{ order:2; margin-left:auto; }
  .nav-toggle{ order:3; display:inline-flex; }
  .nav-search{ order:4; flex:1 1 100%; max-width:none; margin:0; }
  .page-hero__inner{ padding:40px 0 46px; }
  .section{ padding:64px 0; }
  .hero-stats{ grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; }
  .hud{ padding:32px; }
  .hud__grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .subscribe{ grid-template-columns:1fr; }
  .path-grid{ grid-template-columns:1fr; }
  .cta-band__inner{ flex-direction:column; align-items:flex-start; gap:24px; padding:48px 0; }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:28px; }
}
@media (max-width:639px){
  body{ font-size:15.5px; }
  .section{ padding:52px 0; }
  .nav-chips{ display:none; }
  .nav-chips.is-open{ display:block; }
  .nav-login{ display:none; }
  .brand__text{ font-size:16px; }
  .hero-lede{ font-size:16px; }
  .hero-stats{ grid-template-columns:1fr 1fr; }
  .hero-stat__value{ font-size:20px; }
  .page-hero__inner{ padding:32px 0 40px; }
  .hud{ padding:24px; }
  .hud__grid{ grid-template-columns:1fr; }
  .bar-row{ grid-template-columns:1fr; gap:8px; }
  .bar-value{ text-align:left; }
  .subscribe__card{ padding:24px; }
  .field-row{ grid-template-columns:1fr; }
  .field-row .btn{ width:100%; }
  .footer-grid{ grid-template-columns:1fr; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{ transition-duration:.01ms !important; animation-duration:.01ms !important; }
  html{ scroll-behavior:auto; }
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --brand:#1F5FD8;
  --brand-dark:#1749AC;
  --brand-light:#EAF1FE;
  --accent:#FF7A2F;
  --accent-light:#FFF1E7;
  --teal:#12B39A;
  --teal-light:#E6F8F5;
  --danger:#D93B3B;
  --ink:#0E1726;
  --text:#33415A;
  --muted:#6B7A93;
  --line:#E3E9F3;
  --bg:#F5F8FD;
  --surface:#FFFFFF;
  --footer-bg:#F1F5FB;

  --r-sm:10px;
  --r-md:14px;
  --r-pill:999px;
  --r-img:12px;

  --sh-1:0 1px 2px rgba(14,23,38,.04), 0 8px 24px rgba(31,95,216,.06);
  --sh-2:0 2px 6px rgba(14,23,38,.06), 0 16px 36px rgba(31,95,216,.10);
  --sh-3:0 8px 20px rgba(14,23,38,.10), 0 28px 60px rgba(31,95,216,.16);

  --sp-1:8px;  --sp-2:12px; --sp-3:16px; --sp-4:24px;
  --sp-5:32px; --sp-6:48px; --sp-7:64px; --sp-8:88px;

  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),transform .22s var(--ease);}
a:hover{color:var(--brand);}
button,input,select,textarea{font-family:inherit;font-size:16px;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
table{border-collapse:collapse;width:100%;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1024px){
  .container{padding-left:32px;padding-right:32px;}
}
@media (min-width:1440px){
  .container{max-width:1280px;}
}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 24px;
  border:1px solid transparent;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s var(--ease),background-color .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(31,95,216,.22);}
.btn--primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(31,95,216,.28);}
.btn--primary:active{transform:translateY(1px);}
.btn--accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,47,.22);}
.btn--accent:hover{background:#E96A21;color:#fff;transform:translateY(-2px);}
.btn--outline{background:transparent;color:var(--brand);border-color:rgba(31,95,216,.4);}
.btn--outline:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-2px);}
.btn--ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.5);}
.btn--ghost:hover{background:rgba(255,255,255,.22);color:#fff;transform:translateY(-2px);}
.btn--sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;}

/* ============ 头部 ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);}
.site-header.is-scrolled .nav-main{box-shadow:var(--sh-1);}

.topbar{background:var(--brand-light);font-size:14px;color:var(--brand-dark);}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;}
.topbar__text{margin:0;font-size:13px;line-height:1.6;padding:6px 0;}
.topbar__close{
  flex:none;width:28px;height:28px;display:grid;place-items:center;
  border:0;border-radius:50%;background:transparent;color:var(--brand-dark);cursor:pointer;
  transition:background-color .22s var(--ease);
}
.topbar__close:hover{background:rgba(31,95,216,.12);}
.topbar.is-hidden{display:none;}

.nav-main{background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .22s var(--ease);}
.nav-main__inner{display:flex;align-items:center;gap:24px;min-height:72px;}

.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand__mark{width:38px;height:38px;flex:none;border-radius:11px;box-shadow:0 4px 12px rgba(31,95,216,.18);}
.brand__text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.brand__text span{color:var(--brand);}

.nav-search{
  flex:1 1 auto;
  display:flex;align-items:center;gap:8px;
  max-width:560px;
  margin:0 auto;
  padding:0 8px 0 16px;
  min-height:48px;
  background:var(--bg);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease);
}
.nav-search:focus-within{
  background:var(--surface);
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(31,95,216,.10),0 8px 20px rgba(31,95,216,.10);
}
.nav-search__icon{width:19px;height:19px;flex:none;color:var(--muted);}
.nav-search input{
  flex:1 1 auto;min-width:0;height:46px;border:0;background:transparent;outline:none;
  font-size:15px;color:var(--ink);
}
.nav-search input::placeholder{color:var(--muted);}
.nav-search__btn{
  flex:none;min-height:36px;padding:0 16px;border:0;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .22s var(--ease),transform .22s var(--ease);
}
.nav-search__btn:hover{background:var(--brand-dark);}
.nav-search__btn:active{transform:translateY(1px);}

.nav-actions{display:flex;align-items:center;gap:18px;flex:none;}
.nav-login{font-size:15px;font-weight:600;color:var(--text);}
.nav-login:hover{color:var(--brand);}

.nav-toggle{
  display:none;width:44px;height:44px;flex:none;
  align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);
  cursor:pointer;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);}
.nav-toggle span::before,
.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.nav-chips{background:var(--surface);border-bottom:1px solid var(--line);}
.chips-inner{display:flex;align-items:center;gap:10px;padding-top:10px;padding-bottom:10px;overflow-x:auto;scrollbar-width:none;}
.chips-inner::-webkit-scrollbar{display:none;}
.chip{
  flex:none;padding:8px 16px;border-radius:var(--r-pill);
  background:var(--bg);color:var(--text);font-size:14px;font-weight:500;
  border:1px solid transparent;
  transition:background-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.chip:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);}
.chip.is-active{background:var(--brand);color:#fff;border-color:var(--brand);}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:#0E1726 url('/assets/images/backpic/back-1.webp') center/cover no-repeat;}
.hero__mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(14,23,38,.90) 0%,rgba(23,73,172,.76) 46%,rgba(31,95,216,.42) 100%);}
.hero__inner{position:relative;z-index:2;padding:84px 0 72px;max-width:840px;}
.hero__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;margin-bottom:22px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13px;font-weight:600;letter-spacing:.02em;
}
.hero__eyebrow i{color:var(--accent);}
.hero h1{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:700;line-height:1.22;letter-spacing:-.02em;color:#fff;
}
.hero__sub{margin-top:20px;font-size:18px;line-height:1.8;color:rgba(255,255,255,.86);max-width:680px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.metrics{display:flex;flex-wrap:wrap;gap:44px;margin-top:44px;padding-top:28px;border-top:1px solid rgba(255,255,255,.2);}
.metric b{display:block;font-size:26px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.3;}
.metric span{font-size:13px;color:rgba(255,255,255,.75);}

/* ============ 区块骨架 ============ */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{
  position:relative;
  font-size:clamp(24px,2.6vw,32px);
  font-weight:700;line-height:1.3;color:var(--ink);letter-spacing:-.01em;
  padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:18px;border-radius:2px;background:var(--brand);
}
.section-head p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--muted);}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head--center h2{padding-left:0;}
.section-head--center h2::before{display:none;}

/* ============ 服务范围（横向叙事） ============ */
.svc-list{display:flex;flex-direction:column;}
.svc-row{
  display:grid;grid-template-columns:1.05fr 1fr;
  gap:56px;align-items:center;
  padding:42px 0;
  border-top:1px solid var(--line);
}
.svc-row:first-child{border-top:0;padding-top:0;}
.svc-row__media img{
  width:100%;height:320px;object-fit:cover;border-radius:var(--r-img);
  box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.svc-row:hover .svc-row__media img{transform:translateY(-3px);box-shadow:var(--sh-2);}
.svc-row--flip .svc-row__media{order:2;}
.svc-index{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--brand);font-variant-numeric:tabular-nums;margin-bottom:12px;
}
.svc-row__body h3{font-size:22px;font-weight:700;color:var(--ink);line-height:1.4;}
.svc-row__body p{margin-top:14px;font-size:16px;line-height:1.9;color:var(--text);}
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand-dark);font-size:13px;font-weight:600;
}
.tag--accent{background:var(--accent-light);color:#C25416;}
.tag--teal{background:var(--teal-light);color:#0A8674;}

/* ============ 资料与条款列表 ============ */
.doc-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;}
.doc-list{border-top:1px solid var(--line);}
.doc-item{
  display:flex;align-items:center;gap:18px;
  padding:20px 16px;border-bottom:1px solid var(--line);
  transition:background-color .22s var(--ease),transform .22s var(--ease);
}
.doc-item:hover{background:var(--brand-light);transform:translateX(4px);}
.doc-icon{
  flex:none;width:46px;height:46px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--brand-light);color:var(--brand);font-size:17px;
}
.doc-body{flex:1 1 auto;min-width:0;}
.doc-body h3{font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;}
.doc-body p{margin-top:4px;font-size:14px;line-height:1.7;color:var(--muted);}
.doc-arrow{flex:none;color:var(--muted);font-size:14px;transition:transform .22s var(--ease),color .22s var(--ease);}
.doc-item:hover .doc-arrow{color:var(--brand);transform:translateX(4px);}
.doc-note{
  margin-top:24px;padding:18px 20px;border-radius:var(--r-md);
  background:var(--accent-light);border:1px solid rgba(255,122,47,.24);
  font-size:14px;line-height:1.8;color:#8A4415;
}

/* ============ 合作流程（路径图） ============ */
.flow-panel{
  background:var(--ink);border-radius:20px;
  padding:56px 48px;color:#fff;position:relative;overflow:hidden;
}
.flow-panel::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,95,216,.55) 0%,rgba(31,95,216,0) 70%);
}
.flow-panel h2{position:relative;z-index:1;font-size:clamp(24px,2.6vw,30px);font-weight:700;color:#fff;line-height:1.3;}
.flow-panel .flow-sub{position:relative;z-index:1;margin-top:12px;font-size:15px;color:rgba(255,255,255,.72);max-width:640px;}
.flow{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:48px;}
.flow::before{
  content:"";position:absolute;top:22px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,rgba(31,95,216,.9),rgba(255,122,47,.9));
}
.flow-step{position:relative;}
.flow-num{
  position:relative;z-index:1;
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--brand);color:#fff;font-size:16px;font-weight:700;
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px rgba(14,23,38,1);
}
.flow-step.is-current .flow-num{background:var(--accent);}
.flow-step h3{margin-top:20px;font-size:17px;font-weight:600;color:#fff;}
.flow-step p{margin-top:8px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);}

/* ============ 表单 + 联系信息 ============ */
.contact-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:32px;align-items:start;}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:36px;box-shadow:var(--sh-1);
}
.form-card h2{font-size:24px;font-weight:700;color:var(--ink);line-height:1.35;}
.form-card .form-intro{margin-top:12px;font-size:15px;line-height:1.8;color:var(--muted);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:28px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--ink);}
.field input,
.field select,
.field textarea{
  width:100%;min-height:46px;padding:11px 14px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);color:var(--ink);font-size:15px;line-height:1.6;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field textarea{min-height:112px;resize:vertical;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(31,95,216,.10);
}
.field input::placeholder,
.field textarea::placeholder{color:#9AA8BE;}
.checkline{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.7;color:var(--muted);}
.checkline input{width:18px;height:18px;min-height:0;margin-top:3px;flex:none;}
.form-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:26px;}
.form-note{font-size:13px;color:var(--muted);line-height:1.7;max-width:420px;}

.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:32px;box-shadow:var(--sh-1);
}
.info-card h3{font-size:18px;font-weight:700;color:var(--ink);}
.info-list{margin-top:20px;}
.info-list li{
  display:flex;justify-content:space-between;gap:14px;
  padding:14px 0;border-bottom:1px dashed var(--line);
  font-size:14px;
}
.info-list li:last-child{border-bottom:0;}
.info-list b{color:var(--muted);font-weight:500;flex:none;}
.info-list span{color:var(--ink);font-weight:600;text-align:right;}
.info-status{
  display:flex;align-items:center;gap:10px;
  margin-top:22px;padding:14px 16px;border-radius:var(--r-sm);
  background:var(--teal-light);color:#0A8674;font-size:13px;font-weight:600;
}
.info-status i{color:var(--teal);}
.info-cta{margin-top:22px;}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .22s var(--ease);
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q::after{
  content:"+";flex:none;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--brand-light);color:var(--brand);
  font-size:18px;font-weight:600;line-height:1;
  transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease);
}
.faq-item[open] .faq-q{color:var(--brand-dark);}
.faq-item[open] .faq-q::after{content:"−";background:var(--brand);color:#fff;transform:rotate(180deg);}
.faq-a{padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--muted);max-width:780px;}
.faq-q:hover{color:var(--brand);}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  background:var(--brand-light);
  padding:64px 56px;
}
.cta-band__inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--ink);line-height:1.35;max-width:620px;}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--text);max-width:620px;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-band__deco{
  position:absolute;right:-80px;bottom:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,95,216,.18) 0%,rgba(31,95,216,0) 70%);
}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer-bg);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand span{font-size:17px;font-weight:700;color:var(--ink);}
.footer-brand em{font-style:normal;color:var(--brand);}
.footer-desc{font-size:14px;line-height:1.85;color:var(--muted);max-width:360px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:18px;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a{font-size:14px;color:var(--muted);display:inline-block;}
.footer-col ul li a:hover{color:var(--brand);transform:translateX(2px);}
.footer-contact li{display:flex;flex-direction:column;gap:4px;font-size:14px;}
.footer-contact b{color:var(--ink);font-weight:600;}
.footer-contact span{color:var(--muted);}
.footer-bottom{
  margin-top:56px;padding:22px 0;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .svc-row{gap:40px;}
}
@media (max-width:1023px){
  .nav-main__inner{flex-wrap:wrap;gap:12px;padding-top:12px;padding-bottom:12px;min-height:60px;}
  .brand{order:1;}
  .nav-toggle{order:2;display:flex;margin-left:auto;}
  .nav-actions{order:3;}
  .nav-login{display:none;}
  .nav-search{order:4;flex:1 1 100%;max-width:none;margin:0;}
  .nav-chips{display:none;}
  .nav-chips.is-open{display:block;}
  .chips-inner{flex-direction:column;align-items:stretch;gap:8px;}
  .chip{text-align:center;padding:12px 16px;}

  .hero__inner{padding:64px 0 56px;}
  .section{padding:64px 0;}
  .svc-row{grid-template-columns:1fr;gap:24px;padding:32px 0;}
  .svc-row--flip .svc-row__media{order:0;}
  .svc-row__media img{height:260px;}
  .doc-wrap{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr 1fr;gap:32px 24px;}
  .flow::before{display:none;}
  .flow-panel{padding:40px 28px;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:44px 28px;}
}
@media (max-width:639px){
  body{font-size:15px;}
  .topbar__text{font-size:12px;}
  .brand__text{font-size:15px;}
  .brand__mark{width:34px;height:34px;}
  .hero__inner{padding:52px 0 48px;}
  .hero__sub{font-size:16px;}
  .hero__actions .btn{flex:1 1 100%;}
  .metrics{gap:28px;}
  .metric b{font-size:22px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:32px;}
  .svc-row__media img{height:200px;}
  .doc-item{padding:18px 12px;align-items:flex-start;}
  .flow{grid-template-columns:1fr;}
  .form-card{padding:26px 20px;}
  .form-grid{grid-template-columns:1fr;}
  .form-actions{flex-direction:column;align-items:stretch;}
  .form-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-band{border-radius:16px;}
  .cta-band__actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}