/* roulang page: index */
:root{
  --brand:#1A6BB0;
  --brand-hover:#14568C;
  --brand-light:#E4EFF8;
  --brand-deep:#0C3C63;
  --teal:#0E9E8E;
  --teal-light:#E3F5F2;
  --orange:#FF7A2F;
  --orange-light:#FFEDE2;
  --ink:#0F1B26;
  --ink-2:#33465A;
  --ink-3:#61758A;
  --line:#E2EAF2;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --danger:#D64545;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(16,32,46,.06),0 6px 18px rgba(16,32,46,.06);
  --shadow-2:0 6px 14px rgba(16,32,46,.10),0 18px 40px rgba(16,32,46,.12);
  --sec:88px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--brand-hover)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,.accordion-title:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul{list-style:none;padding:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- 顶部活动长条 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);box-shadow:0 1px 0 var(--line)}
.topbar{background:var(--brand-deep);color:#fff;min-height:48px}
.topbar__inner{display:flex;align-items:center;gap:18px;min-height:48px}
.topbar__label{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.88);white-space:nowrap}
.topbar__label svg{width:16px;height:16px;flex:none;color:var(--orange)}
.topbar__cd{margin:0 auto;display:flex;align-items:center;gap:6px}
.topbar__cd .countdown__num{width:28px;height:28px;font-size:13px}
.topbar__cd .countdown__unit{font-size:11px;color:rgba(255,255,255,.6)}
.topbar__cd .countdown__sep{font-size:13px;color:rgba(255,255,255,.5)}
.topbar__close{background:transparent;border:1px solid rgba(255,255,255,.3);color:rgba(255,255,255,.8);border-radius:999px;height:26px;padding:0 12px;font-size:12.5px;transition:all .2s ease}
.topbar__close:hover{background:rgba(255,255,255,.12);color:#fff}
.site-header.is-collapsed .topbar{display:none}

/* ---------- 主导航 ---------- */
.nav{position:relative;background:var(--surface)}
.nav::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,var(--brand),#8FC3E8)}
.nav__inner{display:flex;align-items:center;gap:20px;min-height:76px;padding-top:8px;padding-bottom:8px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand__mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--brand),var(--brand-deep));display:flex;align-items:center;justify-content:center;flex:none}
.brand__mark svg{width:19px;height:19px;color:#fff}
.brand__text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.brand__text small{display:block;font-size:11px;font-weight:400;color:var(--ink-3);letter-spacing:.02em;line-height:1.2}
.nav__search{flex:1 1 380px;max-width:460px;min-width:0}
.searchbar{display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:4px 4px 4px 16px;height:46px;transition:border-color .2s ease,box-shadow .2s ease}
.searchbar:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,107,176,.15)}
.searchbar__icon{width:18px;height:18px;flex:none;color:var(--ink-3)}
.searchbar input{flex:1;min-width:0;border:0;background:transparent;height:36px;outline:none;font-size:15px}
.searchbar input::placeholder{color:var(--ink-3)}
.searchbar button{flex:none;height:36px;padding:0 20px;border:0;border-radius:999px;background:var(--brand);color:#fff;font-size:14px;font-weight:600;transition:background .2s ease,transform .2s ease}
.searchbar button:hover{background:var(--brand-hover)}
.searchbar button:active{transform:translateY(0)}
.hotwords{display:flex;flex-wrap:wrap;gap:6px;margin-top:7px}
.chip{display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;background:var(--brand-light);color:var(--brand-hover);font-size:12.5px;line-height:1;transition:background .2s ease,color .2s ease}
.chip:hover{background:#D3E5F5;color:var(--brand-deep)}
.chip--teal{background:var(--teal-light);color:#0A7C70}
.chip--teal:hover{background:#D2EDE8;color:#08655B}
.nav__links{display:flex;align-items:center;gap:4px;margin-left:auto;flex:0 0 auto}
.nav__link{position:relative;display:inline-flex;align-items:center;height:44px;padding:0 11px;font-size:14.5px;color:var(--ink-2);white-space:nowrap;transition:color .2s ease}
.nav__link:hover{color:var(--brand)}
.nav__link.is-active{color:var(--brand);font-weight:600}
.nav__link.is-active::after{content:"";position:absolute;left:11px;right:11px;bottom:4px;height:3px;border-radius:2px;background:var(--brand)}
.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-btn);font-size:15px;font-weight:600;line-height:1;text-align:center;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-ghost{background:var(--surface);color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-hover);transform:translateY(-1px)}
.btn-white{background:#fff;color:var(--brand-deep);border-color:#fff}
.btn-white:hover{background:#EAF3FB;color:var(--brand-deep);transform:translateY(-1px)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);height:38px;font-size:14px;padding:0 18px}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-block{width:100%}
.nav__cta{height:42px;padding:0 20px;font-size:14.5px;margin-left:6px;border-radius:999px}
.nav__burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);margin-left:auto}
.nav__burger svg{width:20px;height:20px}

/* ---------- 倒计时组件 ---------- */
.countdown{display:flex;align-items:center;gap:6px}
.countdown__num{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background:var(--orange);color:#fff;font-size:18px;font-weight:700;font-variant-numeric:tabular-nums}
.countdown__unit{font-size:12px;color:rgba(255,255,255,.72);margin-left:2px}
.countdown__sep{font-size:18px;font-weight:700;color:rgba(255,255,255,.45);margin:0 2px}
.countdown__item{display:inline-flex;align-items:center}
.countdown__ended{display:none;font-size:14px;color:#fff}
.countdown.is-ended .countdown__group{display:none}
.countdown.is-ended .countdown__ended{display:inline}

/* ---------- 活动横幅 ---------- */
.promo-bar{background:var(--brand-deep);border-bottom:1px solid rgba(255,255,255,.08)}
.promo-bar__inner{display:flex;align-items:center;gap:24px;min-height:56px;padding-top:8px;padding-bottom:8px}
.promo-bar__text{color:#fff;font-size:15px;flex:1 1 auto;min-width:0}
.promo-bar__text strong{color:var(--orange);font-weight:700}
.promo-bar .countdown__num{width:44px;height:44px;font-size:19px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%)}
.hero__ring{position:absolute;top:-170px;right:-130px;width:540px;height:540px;border-radius:50%;border:70px solid rgba(26,107,176,.07);pointer-events:none}
.hero__inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding-top:64px;padding-bottom:76px}
.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:var(--orange-light);color:#B44D12;font-size:13px;font-weight:600}
.hero__eyebrow span{width:6px;height:6px;border-radius:50%;background:var(--orange)}
.hero__title{font-size:clamp(28px,4.6vw,44px);line-height:1.24;font-weight:700;letter-spacing:-.01em;margin-top:20px;color:var(--ink)}
.hero__sub{margin-top:18px;font-size:16.5px;color:var(--ink-2);max-width:52ch}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero__badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero__badges li{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;color:var(--ink-2);background:var(--surface);border:1px solid var(--line);border-radius:999px;height:32px;padding:0 14px;box-shadow:var(--shadow-1)}
.hero__badges svg{width:15px;height:15px;color:var(--teal);flex:none}
.hero__media{position:relative;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-2);aspect-ratio:4/3}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero__mask{position:absolute;inset:0;background:linear-gradient(105deg,rgba(26,107,176,.74) 0%,rgba(12,60,99,.58) 100%)}
.hero__tag{position:absolute;left:20px;bottom:20px;display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.94);color:var(--brand-deep);font-size:13.5px;font-weight:600;height:34px;padding:0 16px;border-radius:999px}
.hero__tag svg{width:15px;height:15px;color:var(--teal)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0}
.section--alt{background:var(--bg)}
.section--brand{background:var(--brand-light)}
.section--white{background:var(--surface)}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section__title{font-size:clamp(22px,3vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.section__sub{margin-top:12px;font-size:15.5px;color:var(--ink-2);max-width:72ch}
.section__more{flex:none;display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;text-decoration:underline;text-decoration-color:rgba(26,107,176,.35);text-underline-offset:5px}
.section__more:hover{text-decoration-color:var(--brand-hover);color:var(--brand-hover)}
.section__more svg{width:15px;height:15px}

/* ---------- 卖点 ---------- */
.points{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.point{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px 24px;box-shadow:var(--shadow-1);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;overflow:hidden}
.point::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);transform:scaleY(.35);transform-origin:top;transition:transform .25s ease}
.point:hover{transform:translateY(-2px);border-color:rgba(26,107,176,.3);box-shadow:var(--shadow-2)}
.point:hover::before{transform:scaleY(1)}
.point__no{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border:2px solid var(--brand);border-radius:11px;color:var(--brand);font-size:15px;font-weight:700;font-variant-numeric:tabular-nums}
.point__title{margin-top:18px;font-size:17px;font-weight:600;color:var(--ink)}
.point__desc{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--ink-3)}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin-top:36px}
.stats__item{background:var(--surface);padding:22px 20px;text-align:center}
.stats__num{font-size:26px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stats__label{margin-top:6px;font-size:13.5px;color:var(--ink-3)}

/* ---------- 图墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tile{position:relative;overflow:hidden;border-radius:var(--r-img);background:linear-gradient(135deg,var(--brand-light),#F5F8FB);box-shadow:var(--shadow-1)}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.tile--wide{grid-column:span 2}
.tile:nth-child(1) img,.tile:nth-child(4) img{aspect-ratio:16/10}
.tile img{aspect-ratio:4/3}
.tile--wide img{aspect-ratio:16/10}
.tile__veil{position:absolute;inset:auto 0 0 0;padding:34px 16px 14px;background:linear-gradient(180deg,rgba(12,60,99,0) 0%,rgba(12,60,99,.82) 100%);opacity:0;transform:translateY(8px);transition:opacity .25s ease,transform .25s ease}
.tile__veil strong{display:block;color:#fff;font-size:15px;font-weight:600}
.tile__veil span{display:block;color:rgba(255,255,255,.78);font-size:12.5px;margin-top:2px}
.tile:hover img{transform:scale(1.03)}
.tile:hover{box-shadow:var(--shadow-2)}
.tile:hover .tile__veil{opacity:1;transform:translateY(0)}

/* ---------- 报名 CTA ---------- */
.signup{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.signup__list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.signup__list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2)}
.signup__list svg{width:18px;height:18px;color:var(--teal);flex:none;margin-top:4px}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:30px;box-shadow:var(--shadow-1)}
.form-card__title{font-size:19px;font-weight:700;color:var(--ink)}
.form-card__hint{margin-top:8px;font-size:13.5px;color:var(--ink-3)}
.field{margin-top:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);padding:0 14px;height:46px;font-size:15px;outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.field textarea{height:96px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,107,176,.14)}
.field.is-error input,.field.is-error textarea{border-color:var(--danger);box-shadow:0 0 0 3px rgba(214,69,69,.12)}
.field.is-success input,.field.is-success textarea{border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,158,142,.12)}
.field__msg{display:none;margin-top:7px;font-size:12.5px}
.field.is-error .field__msg{display:block;color:var(--danger)}
.field.is-success .field__msg{display:flex;align-items:center;gap:6px;color:#0A7C70}
.field__msg svg{width:14px;height:14px}
.form-card .btn{margin-top:22px}
.form-note{margin-top:14px;font-size:12.5px;color:var(--ink-3);line-height:1.7}
.form-alert{display:none;align-items:center;gap:10px;margin-top:16px;padding:12px 14px;border-radius:var(--r-btn);font-size:14px}
.form-alert.is-on{display:flex}
.form-alert--ok{background:var(--teal-light);color:#08655B;border:1px solid rgba(14,158,142,.35)}
.form-alert--err{background:#FDECEC;color:#A93333;border:1px solid rgba(214,69,69,.32)}
.form-alert svg{width:18px;height:18px;flex:none}

/* ---------- 信息列表 ---------- */
.posts{display:grid;grid-template-columns:1.15fr 1fr;gap:28px;align-items:start}
.post-list{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.post-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-1);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.post-card:hover{transform:translateY(-2px);border-color:rgba(26,107,176,.3);box-shadow:var(--shadow-2)}
.post-card__media{display:block;overflow:hidden;background:linear-gradient(135deg,var(--brand-light),#EFF5FA)}
.post-card__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.post-card:hover .post-card__media img{transform:scale(1.03)}
.post-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-card__title{margin-top:12px;font-size:17px;font-weight:600;line-height:1.55;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__title a{color:inherit}
.post-card__title a:hover{color:var(--brand)}
.post-card__excerpt{margin-top:10px;font-size:14px;line-height:1.75;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-card__meta{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--ink-3);border-top:1px solid var(--line);margin-top:18px}
.post-card__meta span{display:inline-flex;align-items:center;gap:6px}
.post-card__meta svg{width:14px;height:14px}
.post-card__link{font-weight:600;color:var(--brand)}
.post-card__link:hover{color:var(--brand-hover);text-decoration:underline}
.post-card--lead .post-card__media img{aspect-ratio:16/10}
.post-card--lead .post-card__body{padding:24px 26px 26px}
.post-card--lead .post-card__title{font-size:21px;-webkit-line-clamp:3}
.post-card--lead .post-card__excerpt{font-size:14.5px;-webkit-line-clamp:3}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1;background:var(--brand-light);color:var(--brand-hover)}
.badge--teal{background:var(--teal-light);color:#0A7C70}
.badge--orange{background:var(--orange-light);color:#B44D12}
.empty{grid-column:1/-1;background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center}
.empty__icon{width:56px;height:56px;margin:0 auto 16px;border-radius:50%;background:var(--brand-light);display:flex;align-items:center;justify-content:center;color:var(--brand)}
.empty__icon svg{width:26px;height:26px}
.empty__text{font-size:15px;color:var(--ink-2)}
.empty__actions{margin-top:18px;display:flex;justify-content:center;gap:12px;flex-wrap:wrap}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1.55fr 1fr;gap:44px;align-items:start}
ul.accordion{background:transparent;border:0;margin:0}
ul.accordion .accordion-item{position:relative;border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
ul.accordion .accordion-item:last-child{margin-bottom:0}
ul.accordion .accordion-item.is-active{border-color:rgba(26,107,176,.42);box-shadow:var(--shadow-1)}
ul.accordion .accordion-item.is-active::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand)}
ul.accordion .accordion-title{display:block;position:relative;padding:18px 56px 18px 62px;border:0;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;background:transparent;transition:color .2s ease,background .2s ease}
ul.accordion .accordion-title:hover{background:rgba(26,107,176,.04)}
ul.accordion .accordion-item.is-active .accordion-title{color:var(--brand)}
ul.accordion .accordion-title::before{content:"";position:absolute;right:24px;top:50%;width:9px;height:9px;margin-top:-6px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(45deg);transition:transform .2s ease,margin .2s ease}
ul.accordion .accordion-item.is-active .accordion-title::before{transform:rotate(-135deg);margin-top:-2px}
.faq-no{position:absolute;left:22px;top:18px;display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:9px;background:var(--brand-light);color:var(--brand);font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums}
ul.accordion .accordion-content{padding:0 56px 20px 62px;border:0;background:transparent;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-side{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:var(--shadow-1);position:sticky;top:150px}
.faq-side__title{font-size:18px;font-weight:700;color:var(--ink)}
.faq-side__desc{margin-top:10px;font-size:14px;color:var(--ink-3);line-height:1.8}
.faq-side__list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.faq-side__list li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-2)}
.faq-side__list svg{width:16px;height:16px;color:var(--brand);flex:none}
.faq-side .btn{margin-top:22px}

/* ---------- 尾部 CTA ---------- */
.tail{margin:0 auto;max-width:1200px;padding:0 24px 88px}
.tail__box{background:var(--brand);border-radius:16px;padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:var(--shadow-1)}
.tail__title{color:#fff;font-size:clamp(19px,2.4vw,24px);font-weight:700;line-height:1.4}
.tail__desc{margin-top:8px;color:rgba(255,255,255,.82);font-size:14px}
.tail__box .btn{flex:none}

/* ---------- 页脚 ---------- */
.footer{background:var(--surface);border-top:2px solid transparent;border-image:linear-gradient(90deg,var(--brand),#8FC3E8) 1;padding-top:64px}
.footer__grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer__brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink)}
.footer__brand .brand__mark{width:32px;height:32px}
.footer__desc{margin-top:16px;font-size:13.5px;line-height:1.85;color:var(--ink-3);max-width:34ch}
.footer__title{font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:18px}
.footer__list{display:flex;flex-direction:column;gap:11px}
.footer__list a{font-size:14px;color:var(--ink-3);transition:color .2s ease,transform .2s ease}
.footer__list a:hover{color:var(--brand);transform:translateX(2px)}
.footer__contact li{display:flex;gap:10px;font-size:14px;color:var(--ink-3);margin-bottom:13px;line-height:1.7}
.footer__contact svg{width:16px;height:16px;color:var(--brand);flex:none;margin-top:4px}
.footer__bottom{border-top:1px solid var(--line);padding:22px 0 30px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px}
.footer__bottom p{font-size:13px;color:var(--ink-3)}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:80;background:rgba(12,30,46,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}
.drawer.is-open{opacity:1;visibility:visible}
.drawer__panel{position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);background:var(--surface);padding:22px;overflow-y:auto;transform:translateX(100%);transition:transform .3s ease;display:flex;flex-direction:column;gap:20px}
.drawer.is-open .drawer__panel{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between}
.drawer__close{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);display:flex;align-items:center;justify-content:center}
.drawer__close svg{width:18px;height:18px}
.drawer .searchbar{width:100%}
.drawer__nav{display:flex;flex-direction:column}
.drawer__nav a{padding:14px 4px;font-size:15.5px;color:var(--ink-2);border-bottom:1px solid var(--line)}
.drawer__nav a.is-active{color:var(--brand);font-weight:600}
.drawer__cta{margin-top:6px}

@media (max-width:1280px){
  .nav__link{padding:0 8px;font-size:14px}
  .nav__cta{padding:0 16px}
}
@media (max-width:1023px){
  :root{--sec:64px}
  .nav__inner{min-height:60px;gap:12px}
  .nav__search,.nav__links{display:none}
  .nav__burger{display:inline-flex}
  .hotwords{display:none}
  .hero__inner{grid-template-columns:1fr;gap:32px;padding-top:44px;padding-bottom:56px}
  .hero__media{aspect-ratio:16/9;max-height:320px}
  .points{grid-template-columns:repeat(2,1fr)}
  .wall{grid-template-columns:repeat(3,1fr)}
  .signup{grid-template-columns:1fr;gap:32px}
  .posts{grid-template-columns:1fr;gap:22px}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-side{position:static}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .tail__box{flex-direction:column;align-items:flex-start;padding:28px}
  .topbar__cd{display:none}
}
@media (max-width:640px){
  :root{--sec:44px}
  body{font-size:15.5px}
  .container{padding:0 18px}
  .topbar__inner{gap:10px}
  .topbar__label{font-size:12.5px;white-space:normal}
  .promo-bar__inner{flex-direction:column;align-items:flex-start;gap:12px;padding-top:14px;padding-bottom:14px}
  .promo-bar__text{font-size:14px}
  .promo-bar .countdown__num{width:36px;height:36px;font-size:16px}
  .countdown__sep{font-size:15px}
  .hero__title{font-size:26px}
  .hero__sub{font-size:15px}
  .hero__actions .btn{width:100%}
  .points{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .wall{grid-template-columns:repeat(2,1fr);gap:12px}
  .tile--wide{grid-column:span 2}
  .post-list{grid-template-columns:1fr}
  .post-card--lead .post-card__title{font-size:19px}
  .form-card{padding:22px}
  .tail{padding-bottom:56px}
  .footer__grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  ul.accordion .accordion-title{padding:16px 46px 16px 56px;font-size:15px}
  ul.accordion .accordion-content{padding:0 20px 18px 56px}
  .faq-no{left:18px;top:16px}
}

/* roulang page: article */
:root{
  --brand:#1A6BB0;
  --brand-dark:#14568C;
  --brand-deep:#0C3C63;
  --brand-soft:#E4EFF8;
  --teal:#0E9E8E;
  --teal-soft:#E3F5F2;
  --orange:#FF7A2F;
  --orange-soft:#FFEDE2;
  --ink:#0F1B26;
  --ink-2:#33465A;
  --ink-3:#61758A;
  --line:#E2EAF2;
  --bg:#F5F8FB;
  --card:#FFFFFF;
  --danger:#D64545;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 1px 2px rgba(16,32,46,.06),0 6px 18px rgba(16,32,46,.06);
  --shadow-2:0 4px 10px rgba(16,32,46,.08),0 18px 40px rgba(16,32,46,.12);
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-img)}
a{color:var(--brand);text-decoration:none;text-decoration-color:rgba(26,107,176,.35);text-underline-offset:3px}
a:hover{color:var(--brand-dark);text-decoration:underline;text-decoration-color:var(--brand-dark)}
a:visited{color:var(--brand)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.32}
p{margin:0 0 16px;max-width:72ch}
ul,ol{margin:0 0 16px;padding-left:1.2em}
li{line-height:1.9}
.num,.countdown,.article-meta,.stat__num,time{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

/* ---------- 顶部活动长条 ---------- */
.site-header{position:relative;z-index:60}
.topbar{
  position:sticky;top:0;z-index:70;
  background:linear-gradient(90deg,var(--brand-deep),var(--brand));
  color:#fff;
}
.topbar__inner{display:flex;align-items:center;gap:18px;min-height:48px}
.topbar__label{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.topbar__label svg{width:16px;height:16px}
.topbar__cd{flex:1;display:flex;align-items:center;justify-content:center}
.countdown__group{display:inline-flex;align-items:center;gap:7px}
.countdown__item{display:inline-flex;align-items:baseline;gap:3px}
.countdown__num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:32px;height:28px;padding:0 6px;
  background:rgba(255,255,255,.16);border-radius:8px;
  font-size:15px;font-weight:700;
}
.countdown__unit{font-size:12px;opacity:.85}
.countdown__sep{font-weight:700;opacity:.7}
.countdown__ended{display:none;font-size:13.5px}
.topbar.is-ended .countdown__group{display:none}
.topbar.is-ended .countdown__ended{display:inline}
.topbar__close{
  border:1px solid rgba(255,255,255,.45);background:transparent;color:#fff;
  height:28px;padding:0 12px;border-radius:999px;font-size:12.5px;cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.topbar__close:hover{background:rgba(255,255,255,.16);border-color:#fff}
.site-header.is-collapsed .topbar{display:none}

/* ---------- 主导航 ---------- */
.nav{background:#fff;border-bottom:1px solid var(--line);position:relative}
.nav::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,var(--brand),var(--teal))}
.nav__inner{display:flex;align-items:center;gap:22px;min-height:76px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.brand:hover{text-decoration:none}
.brand__mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  display:flex;align-items:center;justify-content:center;color:#fff;
  box-shadow:0 4px 12px rgba(26,107,176,.28);
}
.brand__mark svg{width:20px;height:20px}
.brand__text{display:flex;flex-direction:column;font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.2}
.brand__text small{font-size:11.5px;font-weight:400;color:var(--ink-3);letter-spacing:0}
.nav__search{flex:1 1 44%;max-width:520px;min-width:200px}
.searchbar{
  position:relative;display:flex;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  height:46px;padding:0 4px 0 40px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.searchbar:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,107,176,.16)}
.searchbar__icon{position:absolute;left:14px;width:18px;height:18px;color:var(--ink-3)}
.searchbar input{
  flex:1;border:0;background:transparent;height:100%;min-width:0;
  font-size:14.5px;outline:none;
}
.searchbar input::placeholder{color:var(--ink-3)}
.searchbar button{
  flex:0 0 auto;height:36px;padding:0 18px;border:0;border-radius:8px;
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background .2s ease,transform .2s ease;
}
.searchbar button:hover{background:var(--brand-dark)}
.searchbar button:active{transform:translateY(1px)}
.hotwords{display:flex;align-items:center;gap:8px;margin-top:7px;flex-wrap:wrap}
.hotwords__label{font-size:12.5px;color:var(--ink-3)}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);
  font-size:12.5px;white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.chip:hover{background:var(--brand);color:#fff;text-decoration:none}
.nav__links{display:flex;align-items:center;gap:4px;flex:0 0 auto;margin-left:auto}
.nav__links > a{
  position:relative;padding:8px 10px;font-size:14.5px;color:var(--ink-2);
  border-radius:8px;white-space:nowrap;transition:color .2s ease;
}
.nav__links > a::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:3px;border-radius:3px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav__links > a:hover{color:var(--brand);text-decoration:none}
.nav__links > a:hover::after,.nav__links > a.is-active::after{transform:scaleX(1)}
.nav__links > a.is-active{color:var(--brand);font-weight:600}
.nav__cta{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;margin-left:8px;
  border-radius:999px;background:var(--orange);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 6px 16px rgba(255,122,47,.28);transition:background .2s ease,transform .2s ease;
}
.nav__cta:hover{background:#EC6A1F;color:#fff;text-decoration:none;transform:translateY(-1px)}
.nav__toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav__toggle svg{width:20px;height:20px;color:var(--ink-2)}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:120;display:none}
.drawer.is-open{display:block}
.drawer__mask{position:absolute;inset:0;background:rgba(12,32,50,.42)}
.drawer__panel{
  position:absolute;top:0;right:0;width:min(88vw,340px);height:100%;
  background:#fff;padding:20px;overflow-y:auto;box-shadow:var(--shadow-2);
}
.drawer__close{
  width:100%;height:42px;border:1px solid var(--line);background:#fff;border-radius:10px;
  color:var(--ink-2);cursor:pointer;margin-bottom:16px;font-size:14px;
}
.drawer .searchbar{margin-bottom:14px}
.drawer__list{list-style:none;padding:0;margin:0 0 18px}
.drawer__list li{border-bottom:1px solid var(--line)}
.drawer__list a{display:block;padding:14px 4px;color:var(--ink-2);font-size:15px}
.drawer__list a:hover{color:var(--brand);text-decoration:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(26,107,176,.22)}
.btn--primary:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--shadow-2)}
.btn--ghost{background:#fff;border-color:var(--line);color:var(--ink-2)}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.btn--pill{border-radius:999px}

/* ---------- 面包屑 ---------- */
.crumbs{background:#fff;border-bottom:1px solid var(--line)}
.crumbs__inner{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:12px 0;font-size:12.8px;color:var(--ink-3)}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--brand);text-decoration:none}
.crumbs__sep{color:#A9BACC}
.crumbs__current{color:var(--ink-2);font-weight:600}

/* ---------- 文章头 ---------- */
.article-head{background:#fff;padding:34px 0 28px;border-bottom:1px solid var(--line)}
.article-head__badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:12.5px;font-weight:600;margin-bottom:14px;
}
.article-head h1{font-size:clamp(26px,3.6vw,40px);line-height:1.28;max-width:900px;margin-bottom:16px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;font-size:13.5px;color:var(--ink-3)}
.article-meta__item{display:inline-flex;align-items:center;gap:6px}
.article-meta__item svg{width:16px;height:16px;color:var(--ink-3);flex:0 0 auto}
.article-meta__dot{width:4px;height:4px;border-radius:50%;background:#C7D5E2}

/* ---------- 正文布局 ---------- */
.article-wrap{padding:44px 0 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:44px;align-items:start}
.article-main{min-width:0}
.article-cover{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);margin-bottom:30px;background:var(--brand-soft)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.article-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:34px 38px;box-shadow:var(--shadow-1)}
.article-body h2{
  font-size:clamp(20px,2.4vw,26px);
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:19px;font-weight:600;margin:28px 0 12px;color:var(--ink)}
.article-body p{font-size:16.5px;line-height:1.9;color:var(--ink-2)}
.article-body ul,.article-body ol{color:var(--ink-2);font-size:16.5px}
.article-body li{margin-bottom:.35em}
.article-body blockquote{
  margin:22px 0;padding:14px 20px;background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:0 10px 10px 0;color:var(--ink-2);
}
.article-body blockquote p{margin:0;font-size:16px}
.article-body img{margin:22px auto;border-radius:var(--radius-img)}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
  border:1px solid var(--line);border-radius:10px;overflow:hidden;
}
.article-body thead th{background:var(--brand-soft);color:var(--brand-deep);font-weight:700;text-align:left}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:#F8FBFD}
.article-body a{font-weight:600}
.article-body code{background:#F1F6FA;padding:2px 6px;border-radius:6px;font-size:14.5px}
.article-table-scroll{overflow-x:auto;margin:22px 0}

/* ---------- 目录 ---------- */
.article-toc{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;box-shadow:var(--shadow-1);
}
.toc__title{
  font-size:14px;font-weight:700;color:var(--ink);margin-bottom:10px;
  display:flex;align-items:center;justify-content:space-between;gap:8px;
}
.toc__title svg{width:16px;height:16px;color:var(--brand)}
.toc__list{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc__list li{margin-bottom:2px;line-height:1.5}
.toc__list a{
  display:block;padding:7px 10px;border-radius:8px;font-size:13.5px;color:var(--ink-3);
  border-left:3px solid transparent;transition:all .2s ease;
}
.toc__list a:hover{background:var(--brand-soft);color:var(--brand);text-decoration:none}
.toc__list a.is-current{color:var(--brand);font-weight:600;background:var(--brand-soft);border-left-color:var(--brand)}
.toc__toggle{display:none}

/* ---------- 空态 ---------- */
.empty-state{text-align:center;padding:30px 10px 10px}
.empty-state svg{width:56px;height:56px;color:#B7C9DA;margin:0 auto 14px}
.empty-state h2{font-size:22px;margin-bottom:10px;padding:0;border:0}
.empty-state p{color:var(--ink-3);margin:0 auto 20px;max-width:52ch;font-size:15.5px}

/* ---------- 标签组 ---------- */
.tag-group{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:28px}
.tag-group__label{font-size:13px;color:var(--ink-3)}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--teal-soft);color:#0A7A6E;font-size:12.5px;font-weight:600;
  transition:background .2s ease,color .2s ease;
}
.tag:hover{background:var(--teal);color:#fff;text-decoration:none}

/* ---------- 上一篇/下一篇 ---------- */
.prevnext{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:34px}
.pn-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--shadow-1);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.pn-card:hover{transform:translateY(-2px);border-color:rgba(26,107,176,.3);box-shadow:var(--shadow-2);text-decoration:none}
.pn-card__label{font-size:12.5px;color:var(--ink-3);display:block;margin-bottom:8px}
.pn-card__title{font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.5}
.pn-card:hover .pn-card__title{color:var(--brand)}
.pn-card--next{text-align:right}

/* ---------- 相关推荐 ---------- */
.related{padding:var(--sec) 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.sec-head h2{font-size:clamp(22px,3vw,32px)}
.sec-head p{color:var(--ink-3);font-size:14.5px;margin:8px 0 0}
.sec-head__link{font-size:14px;font-weight:600;white-space:nowrap}
.related__grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rcard{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rcard:hover{transform:translateY(-2px);border-color:rgba(26,107,176,.3);box-shadow:var(--shadow-2)}
.rcard__media{overflow:hidden;background:var(--brand-soft)}
.rcard__media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .2s ease}
.rcard:hover .rcard__media img{transform:scale(1.03)}
.rcard__body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard__badge{
  align-self:flex-start;display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);font-size:12.5px;font-weight:600;
}
.rcard__title{font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rcard:hover .rcard__title{color:var(--brand)}
.rcard__desc{font-size:14px;color:var(--ink-3);line-height:1.75;margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.rcard__meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-3);
}
.rcard__meta span{display:inline-flex;align-items:center;gap:6px}
.rcard__meta svg{width:14px;height:14px}

/* ---------- 返回 ---------- */
.back-row{display:flex;justify-content:center;padding:52px 0 var(--sec)}

/* ---------- 页脚 ---------- */
.footer{background:#fff;border-top:2px solid transparent;background-image:linear-gradient(#fff,#fff),linear-gradient(90deg,var(--brand),var(--teal));background-origin:border-box;background-clip:padding-box,border-box;padding:56px 0 26px;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer__brand:hover{text-decoration:none}
.footer__brand .brand__text{font-size:16px}
.footer__desc{font-size:14px;color:var(--ink-3);line-height:1.8;margin:0;max-width:36ch}
.footer__title{font-size:15px;font-weight:700;margin-bottom:14px;color:var(--ink)}
.footer__list{list-style:none;padding:0;margin:0}
.footer__list li{margin-bottom:10px}
.footer__list a{font-size:14px;color:var(--ink-2);display:inline-block;transition:color .2s ease,transform .2s ease}
.footer__list a:hover{color:var(--brand);transform:translateX(2px);text-decoration:none}
.footer__contact{list-style:none;padding:0;margin:0}
.footer__contact li{display:flex;gap:9px;font-size:14px;color:var(--ink-2);margin-bottom:12px;line-height:1.65}
.footer__contact svg{width:17px;height:17px;color:var(--brand);flex:0 0 auto;margin-top:4px}
.footer__bottom{
  margin-top:36px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;justify-content:space-between;
  font-size:12.8px;color:var(--ink-3);
}
.footer__bottom a{color:var(--ink-3)}
.footer__bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--sec:64px}
  .nav__inner{min-height:60px;gap:12px}
  .nav__search{display:none}
  .nav__links{display:none}
  .nav__cta{display:none}
  .nav__toggle{display:inline-flex;margin-left:auto}
  .topbar__inner{min-height:40px}
  .topbar__label{font-size:12.5px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:26px}
  .article-toc{position:static;padding:0;border:0;box-shadow:none;background:transparent}
  .toc__title{
    background:#fff;border:1px solid var(--line);border-radius:12px;
    padding:14px 18px;margin-bottom:0;cursor:pointer;box-shadow:var(--shadow-1);
  }
  .toc__list{display:none;background:#fff;border:1px solid var(--line);border-top:0;border-radius:0 0 12px 12px;padding:10px 14px}
  .article-toc.is-open .toc__list{display:block}
  .related__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .article-body{padding:26px 24px}
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
}
@media (max-width:639px){
  :root{--sec:44px}
  .container{padding:0 18px}
  body{font-size:15.5px}
  .countdown__num{min-width:36px;height:24px;font-size:13px;padding:0 4px}
  .countdown__group{gap:4px}
  .countdown__unit{display:none}
  .topbar__label{max-width:44%;overflow:hidden;text-overflow:ellipsis}
  .article-head{padding:24px 0 20px}
  .article-head h1{font-size:24px}
  .article-body{padding:20px 16px;border-radius:12px}
  .article-body p,.article-body li{font-size:15.5px;line-height:1.8}
  .article-body h2{font-size:20px;margin-top:32px}
  .article-body h3{font-size:17.5px}
  .prevnext{grid-template-columns:minmax(0,1fr)}
  .pn-card--next{text-align:left}
  .related__grid{grid-template-columns:minmax(0,1fr)}
  .footer__grid{grid-template-columns:minmax(0,1fr)}
  .btn{height:46px}
  .back-row .btn{width:100%}
  .tag-group{gap:8px}
}

/* roulang page: category1 */
:root{
  --brand:#1A6BB0;
  --brand-hover:#14568C;
  --brand-soft:#E4EFF8;
  --brand-deep:#0C3C63;
  --teal:#0E9E8E;
  --teal-soft:#E3F5F2;
  --orange:#FF7A2F;
  --orange-soft:#FFEDE2;
  --ink:#0F1B26;
  --ink-2:#33465A;
  --ink-3:#61758A;
  --line:#E2EAF2;
  --bg:#F5F8FB;
  --card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(16,32,46,.06),0 6px 18px rgba(16,32,46,.06);
  --shadow-2:0 2px 6px rgba(16,32,46,.08),0 14px 32px rgba(16,32,46,.12);
  --ease:.2s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-hover)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
h1,h2,h3,h4{font-family:inherit;color:var(--ink);letter-spacing:-.01em;margin:0}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--white{background:#fff}
.section--bg{background:var(--bg)}
.section__head{max-width:720px;margin:0 auto 40px;text-align:center}
.section__head h2{font-size:clamp(22px,3vw,32px);font-weight:700;margin-bottom:12px}
.section__head p{font-size:15px;color:var(--ink-3);margin:0}

/* ---------- 顶部长条 ---------- */
.topbar{background:linear-gradient(90deg,#0C3C63,#082B47);color:#fff;position:relative;z-index:3}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:48px}
.topbar__label{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#CFE2F2;white-space:nowrap}
.topbar__label svg{width:16px;height:16px;color:var(--orange);flex:0 0 auto}
.countdown{display:flex;align-items:center;gap:10px}
.countdown__group{display:flex;align-items:center;gap:5px}
.countdown__item{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-width:38px;padding:3px 6px;border-radius:8px;
  background:rgba(255,255,255,.10);
}
.countdown__num{font-size:16px;font-weight:700;color:#FFB27A;line-height:1.15}
.countdown__unit{font-size:10px;color:#9FBBD6;line-height:1.2}
.countdown__sep{color:#7C9BB8;font-weight:700}
.countdown__ended{display:none;font-size:13px;color:#FFD3B4}
.countdown.is-ended .countdown__group{display:none}
.countdown.is-ended .countdown__ended{display:inline}
.topbar__close{
  background:transparent;border:1px solid rgba(255,255,255,.3);color:#D8E7F3;
  font-size:12px;padding:4px 12px;border-radius:999px;cursor:pointer;transition:all var(--ease);
}
.topbar__close:hover{background:rgba(255,255,255,.14);color:#fff}
body.topbar-hidden .topbar{display:none}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:50}
.nav{background:#fff;position:relative;box-shadow:0 1px 0 rgba(16,32,46,.04)}
.nav::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--teal));
}
.nav__inner{display:flex;align-items:center;gap:20px;min-height:76px;padding:10px 24px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:38px;height:38px;border-radius:10px;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;flex:0 0 auto;
}
.brand__mark svg{width:20px;height:20px}
.brand__text{
  display:flex;flex-direction:column;font-size:17px;font-weight:700;
  color:var(--ink);line-height:1.25;
}
.brand__text small{font-size:11px;font-weight:400;color:var(--ink-3);margin-top:2px;letter-spacing:.02em}
.nav__search{flex:1 1 44%;max-width:520px}
.searchbar{
  display:flex;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:4px 4px 4px 14px;transition:border-color var(--ease),box-shadow var(--ease);
}
.searchbar:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,107,176,.15)}
.searchbar__icon{width:18px;height:18px;color:var(--ink-3);flex:0 0 auto}
.searchbar input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;
  font-size:14px;height:38px;padding:0 10px;color:var(--ink);font-family:inherit;
}
.searchbar input::placeholder{color:var(--ink-3)}
.searchbar button{
  border:0;background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  height:36px;padding:0 20px;border-radius:999px;cursor:pointer;transition:background var(--ease);
}
.searchbar button:hover{background:var(--brand-hover)}
.hotwords{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.chip{
  font-size:12.5px;line-height:1;padding:6px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);transition:all var(--ease);
}
.chip:hover{background:var(--brand);color:#fff}
.nav__links{display:flex;align-items:center;gap:2px;flex:0 0 auto}
.nav__links a{
  display:block;position:relative;font-size:14px;color:var(--ink-2);
  padding:8px 10px;border-radius:8px;transition:color var(--ease),background var(--ease);
}
.nav__links a:hover{color:var(--brand);background:var(--brand-soft)}
.nav__links a.is-active{color:var(--brand);font-weight:700}
.nav__links a.is-active::after{
  content:"";position:absolute;left:10px;right:10px;bottom:-3px;height:3px;
  border-radius:3px;background:var(--brand);
}
.nav__burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;align-items:center;justify-content:center;flex-direction:column;
  gap:4px;cursor:pointer;padding:0;transition:border-color var(--ease);
}
.nav__burger:hover{border-color:var(--brand)}
.nav__burger span{display:block;width:18px;height:2px;background:var(--ink-2);border-radius:2px}
.nav__search-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;align-items:center;justify-content:center;cursor:pointer;padding:0;
  color:var(--ink-2);transition:border-color var(--ease),color var(--ease);
}
.nav__search-toggle:hover{border-color:var(--brand);color:var(--brand)}
.nav__search-toggle svg{width:19px;height:19px}

/* ---------- 抽屉导航 ---------- */
.drawer{position:fixed;inset:0;z-index:90;display:none}
.drawer.is-open{display:block}
.drawer__mask{position:absolute;inset:0;background:rgba(15,27,38,.45)}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);background:#fff;
  padding:18px;overflow-y:auto;box-shadow:var(--shadow-2);
}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer__title{font-size:16px;font-weight:700}
.drawer__close{
  width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:9px;
  font-size:16px;color:var(--ink-2);cursor:pointer;line-height:1;
}
.drawer__link{
  display:block;padding:12px 12px;border-radius:10px;font-size:15px;color:var(--ink-2);
  border:1px solid transparent;transition:all var(--ease);
}
.drawer__link:hover{background:var(--brand-soft);color:var(--brand)}
.drawer__link.is-active{border-color:rgba(26,107,176,.3);color:var(--brand);font-weight:700;background:var(--brand-soft)}
.drawer__group{margin-bottom:18px}
.drawer__group h4{font-size:12.5px;color:var(--ink-3);font-weight:600;letter-spacing:.06em;margin-bottom:8px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:14px;font-weight:600;cursor:pointer;text-align:center;
  transition:all var(--ease);
}
.btn--primary{background:var(--brand);color:#fff}
.btn--primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:#fff;color:var(--brand);border-color:var(--line)}
.btn--ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-hover);transform:translateY(-1px)}
.btn--white{background:#fff;color:var(--brand)}
.btn--white:hover{background:#EAF3FB;color:var(--brand-hover);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--pill{border-radius:999px}
.btn--sm{height:38px;padding:0 16px;font-size:13.5px}
.btn--block{width:100%}

/* ---------- 页面横幅 ---------- */
.page-banner{
  position:relative;
  min-height:300px;
  display:flex;align-items:flex-end;
  background-image:
    linear-gradient(115deg,rgba(12,60,99,.90) 0%,rgba(26,107,176,.66) 55%,rgba(14,158,142,.44) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
}
.page-banner__inner{padding:52px 0 40px;color:#fff;width:100%}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:12.5px;margin:0 0 14px;color:rgba(255,255,255,.78)}
.breadcrumb li{display:flex;align-items:center;gap:6px}
.breadcrumb li::after{content:"›";opacity:.7}
.breadcrumb li:last-child::after{content:""}
.breadcrumb a{color:rgba(255,255,255,.9)}
.breadcrumb a:hover{color:#fff;text-decoration:underline}
.breadcrumb .is-current{color:rgba(255,255,255,.72)}
.page-banner h1{font-size:clamp(26px,3.6vw,40px);font-weight:700;color:#fff;margin:0 0 12px}
.page-banner__desc{max-width:62ch;font-size:15px;color:rgba(255,255,255,.88);margin:0 0 18px}
.banner-tags{display:flex;flex-wrap:wrap;gap:8px}
.banner-tag{
  font-size:12.5px;line-height:1;padding:6px 12px;border-radius:999px;
  background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.22);
}

/* ---------- 目录 + 条目双栏 ---------- */
.layout-2col{display:grid;grid-template-columns:264px minmax(0,1fr);gap:40px;align-items:start}
.toc{
  position:sticky;top:120px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-1);
}
.toc__title{font-size:12.5px;font-weight:700;color:var(--ink-3);letter-spacing:.08em;margin-bottom:12px}
.toc__list{display:flex;flex-direction:column;gap:2px}
.toc__list a{
  display:block;font-size:14px;color:var(--ink-2);padding:9px 12px;
  border-radius:9px;border-left:3px solid transparent;transition:all var(--ease);
}
.toc__list a:hover{background:var(--brand-soft);color:var(--brand)}
.toc__list a.is-current{
  border-left-color:var(--brand);background:var(--brand-soft);
  color:var(--brand);font-weight:600;
}
.toc__tip{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-3)}
.toc__tip strong{display:block;color:var(--ink);font-size:14px;margin-bottom:4px}
.toc__tel{display:inline-flex;align-items:center;gap:6px;margin-top:8px;font-weight:700;color:var(--brand)}
.toc__tel svg{width:15px;height:15px}

.group{margin-bottom:44px}
.group:last-child{margin-bottom:0}
.group__head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.group__no{
  font-size:13.5px;font-weight:700;color:var(--brand);background:var(--brand-soft);
  border-radius:8px;padding:4px 10px;line-height:1.4;
}
.group__title{font-size:20px;font-weight:700}
.group__note{font-size:13.5px;color:var(--ink-3);margin:0 0 18px 0}

.entry-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.entry-card{
  position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 22px 20px 24px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.entry-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
  transform:scaleY(.3);transform-origin:top;transition:transform .28s ease;
}
.entry-card:hover{transform:translateY(-2px);border-color:rgba(26,107,176,.3);box-shadow:var(--shadow-2)}
.entry-card:hover::before{transform:scaleY(1)}
.entry-card__icon{
  width:38px;height:38px;border-radius:10px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;margin-bottom:14px;
}
.entry-card__icon svg{width:20px;height:20px}
.entry-card__title{font-size:17px;font-weight:600;margin-bottom:8px}
.entry-card__desc{
  font-size:14px;color:var(--ink-3);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  min-height:calc(14px * 1.75 * 2);
}
.entry-card__link{
  display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--brand);
}
.entry-card__link svg{width:14px;height:14px;transition:transform var(--ease)}
.entry-card__link:hover{color:var(--brand-hover);text-decoration:underline;text-decoration-thickness:2px}
.entry-card__link:hover svg{transform:translateX(3px)}

/* ---------- 指标条 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 28px;box-shadow:var(--shadow-1);
}
.metric{padding-left:16px;border-left:3px solid var(--teal-soft)}
.metric__num{font-size:26px;font-weight:700;color:var(--brand);line-height:1.2}
.metric__num em{font-style:normal;font-size:14px;color:var(--ink-3);margin-left:2px}
.metric__label{font-size:13px;color:var(--ink-3);margin-top:4px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion{border:0;background:transparent;margin:0;padding:0}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);transition:border-color var(--ease);
}
.accordion-item.is-active{border-color:rgba(26,107,176,.35)}
.accordion-title{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:16px 22px;border:0;font-size:16px;font-weight:600;color:var(--ink);
  background:transparent;transition:color var(--ease);
}
.accordion-title::before{display:none}
.accordion-title::after{
  content:"+";margin-left:auto;font-size:20px;font-weight:400;color:var(--brand);line-height:1;
}
.accordion-item.is-active .accordion-title{color:var(--brand)}
.accordion-item.is-active .accordion-title::before{
  display:block;content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:3px;background:var(--brand);
}
.accordion-item.is-active .accordion-title::after{content:"−"}
.accordion-title .faq-no{
  font-size:13px;color:var(--ink-3);font-weight:700;flex:0 0 auto;
}
.accordion-item.is-active .accordion-title .faq-no{color:var(--brand)}
.accordion-content{border:0;padding:0 22px 18px 22px;font-size:15px;color:var(--ink-2);background:transparent}

/* ---------- 相关分类互链 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);color:inherit;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(26,107,176,.3);box-shadow:var(--shadow-2);color:inherit}
.rel-card__media{
  position:relative;aspect-ratio:16/10;overflow:hidden;
  background:linear-gradient(135deg,var(--brand-soft),var(--teal-soft));
}
.rel-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.rel-card:hover .rel-card__media img{transform:scale(1.03)}
.rel-card__badge{
  display:inline-flex;align-items:center;height:24px;font-size:12.5px;line-height:1;
  padding:0 12px;border-radius:999px;background:var(--teal-soft);color:var(--teal);margin-bottom:10px;
}
.rel-card__body{padding:18px 20px 20px}
.rel-card__title{font-size:17px;font-weight:600;margin-bottom:8px}
.rel-card__desc{
  font-size:14px;color:var(--ink-3);margin:0 0 14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card__more{font-size:13.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}

/* ---------- CTA 条 ---------- */
.cta-section{padding:0 0 88px}
.cta-band{
  background:var(--brand);border-radius:16px;padding:38px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow-2);color:#fff;
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);color:#fff;margin-bottom:8px}
.cta-band p{margin:0;font-size:14.5px;color:rgba(255,255,255,.86);max-width:64ch}
.cta-band__actions{flex:0 0 auto;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.footer{position:relative;background:#F0F5FA;padding:56px 0 0}
.footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--teal));
}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:36px}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer__brand .brand__text{font-size:16px}
.footer__desc{font-size:14px;color:var(--ink-3);margin:0;max-width:38ch}
.footer__title{font-size:15px;font-weight:700;margin-bottom:14px}
.footer__list{display:flex;flex-direction:column;gap:9px}
.footer__list a{font-size:14px;color:var(--ink-2);display:inline-block;transition:transform var(--ease),color var(--ease)}
.footer__list a:hover{color:var(--brand);transform:translateX(2px)}
.footer__contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--ink-2)}
.footer__contact li{display:flex;gap:8px;align-items:flex-start}
.footer__contact svg{width:16px;height:16px;color:var(--brand);flex:0 0 auto;margin-top:3px}
.footer__bottom{
  border-top:1px solid var(--line);padding:18px 0 22px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}
.footer__bottom a{color:var(--ink-3)}
.footer__bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav__inner{min-height:60px;padding:8px 24px;gap:12px}
  .nav__search,.nav__links,.nav__cta{display:none}
  .nav__burger,.nav__search-toggle{display:flex}
  .nav__right{margin-left:auto;display:flex;gap:10px}
  .section{padding:64px 0}
  .layout-2col{grid-template-columns:1fr;gap:28px}
  .toc{position:static}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 28px}
  .cta-section{padding:0 0 64px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  body{font-size:15.5px;line-height:1.8}
  .section{padding:44px 0}
  .topbar__inner{height:40px}
  .topbar__label{display:none}
  .countdown__item{min-width:34px;padding:2px 5px}
  .countdown__num{font-size:14px}
  .countdown__unit{font-size:9px}
  .entry-list{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));padding:20px}
  .footer__grid{grid-template-columns:1fr}
  .page-banner__inner{padding:38px 0 30px}
  .page-banner{min-height:260px}
  .accordion-title{padding:14px 16px;font-size:15px}
  .accordion-content{padding:0 16px 16px}
  .cta-band{padding:26px 22px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .footer__bottom{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
:root{
  --brand:#1A6BB0;
  --brand-dark:#14568C;
  --brand-light:#E4EFF8;
  --brand-deep:#0C3C63;
  --teal:#0E9E8E;
  --teal-light:#E3F5F2;
  --orange:#FF7A2F;
  --orange-light:#FFEDE2;
  --ink:#0F1B26;
  --ink-2:#33465A;
  --ink-3:#61758A;
  --line:#E2EAF2;
  --bg:#F5F8FB;
  --card:#FFFFFF;
  --danger:#D64545;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(16,32,46,.06),0 6px 18px rgba(16,32,46,.06);
  --shadow-2:0 2px 6px rgba(16,32,46,.10),0 14px 34px rgba(16,32,46,.12);
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;text-decoration-color:rgba(26,107,176,.35);transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:var(--brand-dark);text-decoration-color:var(--brand-dark)}
a:visited{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--ink);letter-spacing:-.01em;margin:0}
h1{font-size:clamp(28px,4.6vw,44px);font-weight:700;line-height:1.25}
h2{font-size:clamp(22px,3vw,32px);font-weight:700;line-height:1.3}
h3{font-size:18px;font-weight:600;line-height:1.45}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.num,.countdown__num,.metric__num,.stat__num,.count-pill{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}

/* ============ 顶部长条 ============ */
.site-header{position:sticky;top:0;z-index:70}
.site-header::after{content:"";display:block;height:1px;background:linear-gradient(90deg,var(--brand),var(--teal))}
.topbar{background:var(--brand-deep);color:#fff;height:48px;display:flex;align-items:center}
.topbar.is-hidden{display:none}
.topbar__inner{display:flex;align-items:center;gap:18px}
.topbar__label{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#D9E8F5;white-space:nowrap}
.topbar__label svg{width:16px;height:16px;color:var(--orange);flex:none}
.countdown{margin-left:auto;display:flex;align-items:center}
.countdown__group{display:flex;align-items:center;gap:6px}
.countdown__item{display:flex;align-items:baseline;gap:3px;background:rgba(255,255,255,.10);border-radius:8px;padding:3px 9px}
.countdown__num{font-size:16px;font-weight:700;color:#fff}
.countdown__unit{font-size:11.5px;color:#B9D2E8}
.countdown__sep{color:#7FA9CC;font-weight:700}
.countdown__ended{display:none;font-size:13.5px;color:#FFD9C2}
.countdown.is-ended .countdown__group{display:none}
.countdown.is-ended .countdown__ended{display:inline}
.topbar__close{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);color:#fff;
  font-size:12.5px;border-radius:999px;padding:4px 14px;cursor:pointer;transition:background .2s ease;
}
.topbar__close:hover{background:rgba(255,255,255,.22)}

/* ============ 主导航 ============ */
.nav{background:#fff;height:76px;display:flex;align-items:center;box-shadow:0 1px 0 rgba(16,32,46,.04)}
.nav__inner{display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;color:var(--ink)}
.brand:hover{color:var(--ink);text-decoration:none}
.brand__mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;flex:none;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;
}
.brand__mark svg{width:21px;height:21px}
.brand__text{display:flex;flex-direction:column;font-size:18px;font-weight:700;line-height:1.2;letter-spacing:-.01em}
.brand__text small{font-size:11.5px;font-weight:400;color:var(--ink-3);letter-spacing:0}

.nav__search{flex:1 1 auto;max-width:44%;min-width:220px}
.searchbar{position:relative;display:flex;align-items:center;background:#fff;border:1px solid var(--line);border-radius:999px;height:44px;padding:0 4px 0 40px;transition:border-color .2s ease,box-shadow .2s ease}
.searchbar__icon{position:absolute;left:14px;width:18px;height:18px;color:var(--ink-3)}
.searchbar input{
  flex:1;border:0;outline:none;background:transparent;height:100%;font-size:14.5px;color:var(--ink);
  padding:0 8px 0 0;border-radius:999px;
}
.searchbar input::placeholder{color:var(--ink-3)}
.searchbar button{
  border:0;background:var(--brand);color:#fff;font-size:14px;font-weight:600;height:36px;padding:0 20px;
  border-radius:8px;cursor:pointer;transition:background .2s ease;
}
.searchbar button:hover{background:var(--brand-dark)}
.searchbar:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,107,176,.18)}
.hotwords{display:flex;align-items:center;gap:8px;margin-top:8px;flex-wrap:wrap}
.hotwords__label{font-size:12.5px;color:var(--ink-3)}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);font-size:12.5px;border:1px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.chip:hover{background:#D3E5F5;color:var(--brand-dark);text-decoration:none}
.chip.is-active{background:var(--brand);color:#fff;border-color:var(--brand)}

.nav__links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav__links a{
  position:relative;font-size:14.5px;color:var(--ink-2);padding:10px 10px;white-space:nowrap;
  transition:color .2s ease;
}
.nav__links a::after{
  content:"";position:absolute;left:10px;right:10px;bottom:2px;height:3px;border-radius:3px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav__links a:hover{color:var(--brand)}
.nav__links a:hover::after{transform:scaleX(1)}
.nav__links a.is-active{color:var(--brand);font-weight:700}
.nav__links a.is-active::after{transform:scaleX(1)}
.nav__cta{margin-left:10px}
.nav__toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;
  align-items:center;justify-content:center;cursor:pointer;color:var(--ink-2);
}
.nav__toggle svg{width:22px;height:22px}

/* 移动端抽屉 */
.nav-panel{
  position:fixed;top:0;left:0;bottom:0;width:min(86vw,340px);background:#fff;z-index:120;
  transform:translateX(-102%);transition:transform .28s ease;box-shadow:var(--shadow-2);
  display:flex;flex-direction:column;padding:18px;overflow-y:auto;
}
.nav-panel.is-open{transform:translateX(0)}
.nav-panel__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.nav-panel__close{width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;color:var(--ink-2)}
.nav-panel .searchbar{width:100%;max-width:none}
.nav-panel__links{display:flex;flex-direction:column;gap:4px;margin-top:18px}
.nav-panel__links a{padding:13px 12px;border-radius:10px;color:var(--ink-2);font-size:15.5px;border:1px solid transparent}
.nav-panel__links a:hover{background:var(--bg);color:var(--brand);text-decoration:none}
.nav-panel__links a.is-active{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.nav-panel__cta{margin-top:18px;width:100%;justify-content:center}
.nav-mask{position:fixed;inset:0;background:rgba(12,60,99,.42);z-index:110;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}
.nav-mask.is-open{opacity:1;visibility:visible}

/* ============ 通用按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--brand);color:#fff}
.btn--primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--ghost{background:#fff;color:var(--brand-dark);border-color:#C6DCEF}
.btn--ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand);transform:translateY(-1px)}
.btn--white{background:#fff;color:var(--brand-dark)}
.btn--white:hover{background:#EAF3FB;color:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--sm{height:38px;padding:0 18px;font-size:14px;border-radius:8px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;
  font-size:12.5px;font-weight:600;
}
.badge--brand{background:var(--brand-light);color:var(--brand-dark)}
.badge--teal{background:var(--teal-light);color:#0A7A6D}
.badge--orange{background:var(--orange-light);color:#C2560F}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600}
.link-arrow svg{width:16px;height:16px}
.link-arrow:hover{text-decoration:underline;text-decoration-thickness:2px}

/* ============ 面包屑 ============ */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:7px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:14px}
.crumbs a{color:rgba(255,255,255,.9)}
.crumbs a:hover{color:#fff;text-decoration:underline}
.crumbs span[aria-current]{color:#fff;font-weight:600}

/* ============ 分类横幅 ============ */
.cat-hero{position:relative;overflow:hidden;background:var(--brand-deep);color:#fff}
.cat-hero__bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.55}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(12,60,99,.95) 0%,rgba(26,107,176,.72) 100%);
}
.cat-hero__inner{position:relative;z-index:2;padding:54px 0 46px;max-width:820px}
.cat-hero h1{color:#fff;margin-bottom:12px}
.cat-hero__lead{font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.9);max-width:60ch}
.cat-hero__meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.stat{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  border-radius:12px;padding:12px 20px;min-width:132px;
}
.stat__num{font-size:22px;font-weight:700;color:#fff;display:block;line-height:1.2}
.stat__num small{font-size:13px;font-weight:500;margin-left:3px}
.stat__label{font-size:12.5px;color:rgba(255,255,255,.8)}

/* ============ 板块骨架 ============ */
.section{padding:var(--sp-section) 0}
.section--white{background:#fff}
.section--soft{background:var(--bg)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.sec-head__text{max-width:64ch}
.sec-head p{color:var(--ink-2);font-size:15.5px;margin-top:10px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;color:var(--brand);
  letter-spacing:.06em;margin-bottom:10px;
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--brand)}

/* ============ 资源卡墙 ============ */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.chips .chip{height:32px;font-size:13.5px;padding:0 16px;background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.chips .chip:hover{border-color:var(--brand);color:var(--brand)}
.chips .chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff}
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.res-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.res-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(26,107,176,.3)}
.res-card__media{position:relative;aspect-ratio:3/2;overflow:hidden;background:linear-gradient(135deg,var(--brand-light),var(--teal-light))}
.res-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.res-card:hover .res-card__media img{transform:scale(1.03)}
.res-card__flag{
  position:absolute;left:12px;top:12px;background:rgba(12,60,99,.82);color:#fff;
  font-size:12px;padding:3px 10px;border-radius:999px;backdrop-filter:blur(6px);
}
.res-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.res-card__tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;background:var(--bg);color:var(--ink-3);border:1px solid var(--line)}
.tag--teal{background:var(--teal-light);color:#0A7A6D;border-color:transparent}
.tag--brand{background:var(--brand-light);color:var(--brand-dark);border-color:transparent}
.res-card h3{font-size:17px;margin-bottom:8px}
.res-card__desc{
  font-size:14px;line-height:1.7;color:var(--ink-3);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.res-card__foot{
  margin-top:auto;padding-top:16px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.count-pill{
  display:inline-flex;align-items:center;gap:6px;background:var(--orange-light);color:#C2560F;
  height:26px;padding:0 11px;border-radius:999px;font-size:12.5px;font-weight:600;
}
.count-pill svg{width:14px;height:14px}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px 24px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);transition:bottom .2s ease,top .2s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(26,107,176,.3)}
.step:hover::before{top:12px;bottom:12px}
.step__num{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  border:1.5px solid var(--brand);color:var(--brand);font-weight:700;font-size:14px;margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-3);line-height:1.75}

/* ============ 指标条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.metric{background:#fff;padding:26px 22px;text-align:left}
.metric__num{font-size:28px;font-weight:700;color:var(--brand);line-height:1.2}
.metric__num small{font-size:14px;font-weight:600;color:var(--ink-3);margin-left:4px}
.metric__label{font-size:13px;color:var(--ink-3);margin-top:6px}

/* ============ FAQ（Foundation accordion 定制） ============ */
.accordion{border:0;background:transparent;margin:0}
.accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;margin-bottom:12px;
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.accordion .accordion-item:hover{border-color:rgba(26,107,176,.3);box-shadow:var(--shadow-1)}
.accordion .accordion-item.is-active{border-color:rgba(26,107,176,.4);box-shadow:inset 3px 0 0 var(--brand),var(--shadow-1)}
.accordion .accordion-title{
  display:flex;align-items:center;gap:12px;padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  border:0;background:transparent;line-height:1.5;
}
.accordion .accordion-title:hover{background:#FAFCFE;color:var(--brand)}
.accordion .accordion-item.is-active .accordion-title{color:var(--brand)}
.accordion .accordion-title::before{display:none}
.faq-num{
  flex:none;width:28px;height:28px;border-radius:8px;background:var(--brand-light);color:var(--brand-dark);
  display:grid;place-items:center;font-size:12.5px;font-weight:700;
}
.accordion .accordion-content{
  border:0;border-top:1px solid var(--line);padding:16px 22px 20px 62px;background:#fff;
  color:var(--ink-2);font-size:15px;line-height:1.8;
}
.accordion .accordion-content p+p{margin-top:8px}

/* ============ CTA ============ */
.cta-split{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:start}
.cta-block{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  border-radius:16px;padding:44px 40px;color:#fff;box-shadow:var(--shadow-1);
}
.cta-block h2{color:#fff;margin-bottom:12px}
.cta-block p{color:rgba(255,255,255,.88);font-size:15.5px;max-width:52ch}
.cta-block__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px 26px;
  box-shadow:var(--shadow-1);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card__hint{font-size:13.5px;color:var(--ink-3);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:7px;font-weight:600}
.field input,.field textarea{
  width:100%;height:46px;border:1px solid var(--line);border-radius:var(--r-btn);padding:0 14px;
  font-size:15px;color:var(--ink);background:#fff;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:96px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,107,176,.16)}
.field.is-error input,.field.is-error textarea{border-color:var(--danger);box-shadow:0 0 0 3px rgba(214,69,69,.12)}
.field.is-error .field__msg{display:block;color:var(--danger)}
.field.is-success input{border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,158,142,.14)}
.field__msg{display:none;font-size:12.5px;margin-top:6px}
.form-card .btn{width:100%;margin-top:6px}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:14px;line-height:1.7}

/* ============ 相关分类 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(26,107,176,.3);text-decoration:none}
.rel-card__icon{
  flex:none;width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-light);color:var(--brand);
}
.rel-card__icon svg{width:22px;height:22px}
.rel-card h3{font-size:16.5px;color:var(--ink);margin-bottom:6px}
.rel-card p{font-size:13.5px;color:var(--ink-3);line-height:1.7}

/* ============ 页脚 ============ */
.footer{background:#F0F5FA;border-top:2px solid transparent;border-image:linear-gradient(90deg,var(--brand),var(--teal)) 1;padding:56px 0 26px;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px}
.footer__brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);margin-bottom:14px}
.footer__brand .brand__mark{width:34px;height:34px;border-radius:10px}
.footer__brand .brand__text{font-size:17px}
.footer__desc{font-size:13.5px;color:var(--ink-3);line-height:1.8;max-width:34ch}
.footer__title{font-size:14.5px;font-weight:700;color:var(--ink);margin-bottom:14px}
.footer__list{display:flex;flex-direction:column;gap:9px}
.footer__list a{font-size:14px;color:var(--ink-2);transition:color .2s ease,transform .2s ease;display:inline-block}
.footer__list a:hover{color:var(--brand);transform:translateX(2px);text-decoration:none}
.footer__contact{display:flex;flex-direction:column;gap:10px}
.footer__contact li{display:flex;align-items:flex-start;gap:8px;font-size:13.5px;color:var(--ink-2);line-height:1.7}
.footer__contact svg{width:17px;height:17px;color:var(--brand);flex:none;margin-top:3px}
.footer__bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid #DCE6F0;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:var(--ink-3);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  :root{--sp-section:64px}
  .nav{height:64px}
  .nav__search{max-width:none;flex:1}
  .nav__links,.nav__cta{display:none}
  .nav__toggle{display:inline-flex}
  .hotwords{display:none}
  .res-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .cta-split{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .cat-hero__inner{padding:44px 0 38px}
}
@media (max-width:767px){
  .footer__grid{grid-template-columns:1fr}
}
@media (max-width:639px){
  :root{--sp-section:44px}
  .container{padding:0 18px}
  body{font-size:15.5px;line-height:1.8}
  .topbar{height:40px}
  .topbar__label{font-size:12px}
  .topbar__label svg{width:14px;height:14px}
  .countdown__item{padding:2px 7px;border-radius:6px}
  .countdown__num{font-size:14px}
  .countdown__unit{font-size:10.5px}
  .countdown__group{gap:4px}
  .brand__text{font-size:15.5px}
  .brand__text small{display:none}
  .brand__mark{width:34px;height:34px;border-radius:10px}
  .nav{height:60px}
  .cat-hero__inner{padding:34px 0 30px}
  .cat-hero__lead{font-size:15px}
  .stat{flex:1 1 40%;min-width:0;padding:10px 14px}
  .stat__num{font-size:19px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px}
  .res-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr 1fr}
  .metric{padding:20px 16px}
  .metric__num{font-size:23px}
  .cta-block{padding:30px 22px}
  .form-card{padding:22px 18px}
  .accordion .accordion-content{padding-left:22px}
  .footer{padding:40px 0 22px}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --brand:#1A6BB0;
  --brand-hover:#14568C;
  --brand-soft:#E4EFF8;
  --brand-deep:#0C3C63;
  --teal:#0E9E8E;
  --teal-soft:#E3F5F2;
  --orange:#FF7A2F;
  --orange-soft:#FFEDE2;
  --red:#D64545;
  --ink:#0F1B26;
  --ink-2:#33465A;
  --ink-3:#61758A;
  --line:#E2EAF2;
  --bg:#F5F8FB;
  --card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-input:10px;
  --shadow-1:0 1px 2px rgba(16,32,46,.06),0 6px 18px rgba(16,32,46,.06);
  --shadow-2:0 2px 6px rgba(16,32,46,.08),0 14px 34px rgba(16,32,46,.12);
  --sp:88px;
}
/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,h5,h6{font-family:inherit;color:var(--ink);font-weight:700;letter-spacing:-.01em;line-height:1.3;margin:0}
p{margin:0 0 12px}
p:last-child{margin-bottom:0}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-hover)}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Foundation 默认外观覆盖 */
body,h1,h2,h3,h4,h5,h6{font-family:inherit}
a{color:var(--brand)}
button,.button{background-image:none;text-decoration:none}
.accordion{background:transparent;border:0;border-radius:0;margin:0}
.accordion-title{text-decoration:none}

/* ============ 顶部长条 ============ */
.topbar{background:var(--brand-deep);color:#fff;position:sticky;top:0;z-index:40}
.topbar__inner{display:flex;align-items:center;gap:14px;min-height:48px}
.topbar__label{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:rgba(255,255,255,.9);white-space:nowrap}
.topbar__label svg{width:16px;height:16px;color:var(--orange);flex:0 0 auto}
.topbar__cd{margin:0 auto}
.countdown{display:flex;align-items:center;justify-content:center}
.countdown__group{display:inline-flex;align-items:center;gap:6px}
.countdown__item{display:inline-flex;align-items:baseline;gap:3px}
.countdown__num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:30px;height:28px;padding:0 6px;border-radius:8px;
  background:rgba(255,255,255,.12);color:var(--orange);
  font-weight:700;font-size:14px;font-variant-numeric:tabular-nums;
}
.countdown__unit{font-size:11px;color:rgba(255,255,255,.66)}
.countdown__sep{color:rgba(255,255,255,.45);font-weight:700}
.countdown__ended{display:none;font-size:13px;color:rgba(255,255,255,.85)}
.countdown.is-ended .countdown__group{display:none}
.countdown.is-ended .countdown__ended{display:inline}
.topbar__close{
  flex:0 0 auto;font-size:12.5px;color:rgba(255,255,255,.8);
  border:1px solid rgba(255,255,255,.35);border-radius:999px;
  padding:3px 12px;transition:background .2s,color .2s,border-color .2s;
}
.topbar__close:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.6)}

/* ============ 主导航 ============ */
.nav{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:30}
.nav::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,var(--brand),var(--teal))}
.nav__inner{display:flex;align-items:center;gap:22px;min-height:76px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand__mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),#2E8AD1);
  display:grid;place-items:center;color:#fff;
}
.brand__mark svg{width:20px;height:20px}
.brand__text{display:flex;flex-direction:column;font-size:18px;font-weight:700;letter-spacing:-.01em;line-height:1.15}
.brand__text small{font-size:11.5px;font-weight:400;color:var(--ink-3);letter-spacing:0;margin-top:2px}
.brand--footer .brand__text small{display:none}

.nav__search{flex:1 1 auto;max-width:500px;min-width:260px}
.searchbar{
  display:flex;align-items:center;height:44px;background:#fff;
  border:1px solid var(--line);border-radius:999px;padding:0 4px 0 14px;
  transition:border-color .2s,box-shadow .2s;
}
.searchbar:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,107,176,.16)}
.searchbar__icon{width:18px;height:18px;color:var(--ink-3);flex:0 0 auto}
.searchbar input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;height:100%;
  padding:0 10px;font-size:14.5px;color:var(--ink);outline:none;
}
.searchbar input::placeholder{color:var(--ink-3)}
.searchbar button{
  flex:0 0 auto;height:36px;padding:0 18px;border-radius:999px;
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  transition:background .2s ease;
}
.searchbar button:hover{background:var(--brand-hover)}
.hotwords{display:flex;flex-wrap:wrap;gap:8px;margin-top:7px}
.hotwords .chip{
  font-size:12px;color:var(--ink-2);background:#F1F6FB;
  border:1px solid var(--line);border-radius:999px;padding:2px 10px;
  transition:color .2s,border-color .2s,background .2s;
}
.hotwords .chip:hover{color:var(--brand);border-color:rgba(26,107,176,.4);background:var(--brand-soft)}

.nav__links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav__link{
  position:relative;font-size:14px;color:var(--ink-2);
  padding:8px 9px;border-radius:8px;white-space:nowrap;
  transition:color .18s,background .18s;
}
.nav__link:hover{color:var(--brand);background:var(--brand-soft)}
.nav__link.is-active{color:var(--brand);font-weight:700}
.nav__link.is-active::after{
  content:"";position:absolute;left:9px;right:9px;bottom:-2px;
  height:3px;border-radius:2px;background:var(--brand);
}
.nav__cta{margin-left:10px;height:40px;padding:0 18px;font-size:14px;border-radius:999px}
.nav__toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;color:var(--ink-2);
  border:1px solid var(--line);margin-left:auto;
}
.nav__toggle svg{width:22px;height:22px}

/* ============ 移动抽屉 ============ */
.drawer{position:fixed;inset:0;z-index:80;visibility:hidden;pointer-events:none}
.drawer.is-open{visibility:visible;pointer-events:auto}
.drawer__mask{position:absolute;inset:0;width:100%;height:100%;background:rgba(12,35,56,.45);opacity:0;transition:opacity .25s ease;border:0;padding:0}
.drawer.is-open .drawer__mask{opacity:1}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(340px,86vw);
  background:#fff;box-shadow:-10px 0 32px rgba(16,32,46,.18);
  padding:20px;overflow-y:auto;transform:translateX(100%);
  transition:transform .28s ease;
}
.drawer.is-open .drawer__panel{transform:none}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer__head span{font-size:17px;font-weight:700;color:var(--ink)}
.drawer__close{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--ink-2);font-size:22px;line-height:1;
}
.drawer__nav{display:grid;gap:8px;margin-top:18px}
.drawer__nav a{
  padding:12px 14px;border-radius:10px;font-size:15px;
  color:var(--ink-2);background:#F5F8FB;transition:background .2s,color .2s;
}
.drawer__nav a:hover{background:var(--brand-soft);color:var(--brand)}
.drawer__nav a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:700}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:13px;color:rgba(255,255,255,.78)}
.breadcrumb a{color:rgba(255,255,255,.85)}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.breadcrumb span[aria-current]{color:#fff;font-weight:600}

/* ============ 页面横幅 ============ */
.pagebanner{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(112deg,rgba(12,60,99,.9),rgba(26,107,176,.72)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:52px 0 58px;
}
.pagebanner__inner{max-width:820px}
.pagebanner h1{
  color:#fff;font-size:clamp(28px,4.6vw,42px);font-weight:700;
  margin:14px 0 12px;letter-spacing:-.01em;
}
.pagebanner__desc{font-size:16px;color:rgba(255,255,255,.88);max-width:72ch;margin-bottom:22px}
.pagebanner__actions{display:flex;flex-wrap:wrap;gap:12px}
.pagebanner__facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.factchip{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;
  padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);color:#fff;
}
.factchip svg{width:14px;height:14px;color:var(--orange)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1)}
.btn--primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--ghost{background:#fff;border-color:var(--line);color:var(--brand)}
.btn--ghost:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-hover);transform:translateY(-1px)}
.btn--light{background:#fff;color:var(--brand);box-shadow:var(--shadow-1)}
.btn--light:hover{background:#EAF3FB;color:var(--brand-hover);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn--onDark{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);color:#fff}
.btn--onDark:hover{background:rgba(255,255,255,.22);color:#fff;border-color:#fff;transform:translateY(-1px)}
.btn--sm{height:38px;padding:0 16px;font-size:14px}
.btn--pill{border-radius:999px}
.btn--block{width:100%}

/* ============ 板块 ============ */
.section{padding:var(--sp) 0}
.section--alt{background:#fff}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.section__title{font-size:clamp(22px,3vw,30px);font-weight:700;margin:0 0 8px}
.section__sub{color:var(--ink-3);font-size:14.5px;margin:0;max-width:72ch}
.section__more{font-size:14px;font-weight:600}
.section__more:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}

/* ============ 概览 ============ */
.overview{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:start}
.overview__text{font-size:16.5px;color:var(--ink-2)}
.overview__text strong{color:var(--ink)}
.overview__list{display:grid;gap:14px}
.minicard{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--shadow-1);
  border-left:3px solid var(--brand);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.minicard:hover{transform:translateY(-2px);border-color:rgba(26,107,176,.35);box-shadow:var(--shadow-2)}
.minicard h3{font-size:16px;font-weight:600;margin-bottom:6px}
.minicard p{font-size:14px;color:var(--ink-3);margin:0}

/* ============ 时间轴 ============ */
.timeline{position:relative;margin:0;padding:0}
.timeline::before{
  content:"";position:absolute;left:19px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(26,107,176,.12));
}
.timeline__item{position:relative;padding-left:66px;margin-bottom:20px}
.timeline__item:last-child{margin-bottom:0}
.timeline__node{
  position:absolute;left:0;top:4px;width:40px;height:40px;border-radius:50%;
  background:#fff;border:2px solid var(--brand);color:var(--brand);
  display:grid;place-items:center;font-weight:700;font-size:14px;
  font-variant-numeric:tabular-nums;z-index:1;
  transition:background .2s,color .2s;
}
.timeline__item:hover .timeline__node{background:var(--brand);color:#fff}
.timeline__body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.timeline__item.is-soft .timeline__body{background:#F7FAFD}
.timeline__body:hover{transform:translateY(-2px);border-color:rgba(26,107,176,.35);box-shadow:var(--shadow-2)}
.timeline__body h3{font-size:18px;font-weight:600;margin-bottom:8px}
.timeline__body p{font-size:14.5px;color:var(--ink-2);margin-bottom:10px}
.timeline__points{display:grid;gap:6px}
.timeline__points li{position:relative;padding-left:16px;font-size:13.5px;color:var(--ink-3)}
.timeline__points li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;
  border-radius:50%;background:var(--teal);
}

/* ============ 材料卡 ============ */
.matgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.matcard{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.matcard:hover{transform:translateY(-2px);border-color:rgba(26,107,176,.35);box-shadow:var(--shadow-2)}
.matcard__icon{
  width:40px;height:40px;border-radius:11px;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;margin-bottom:14px;
}
.matcard__icon svg{width:20px;height:20px}
.matcard h3{font-size:16.5px;font-weight:600;margin-bottom:8px}
.matcard p{font-size:14px;color:var(--ink-3);margin-bottom:14px}
.matcard__tag{
  margin-top:auto;align-self:flex-start;font-size:12.5px;
  padding:3px 12px;border-radius:999px;background:var(--teal-soft);color:#0B7A6E;
}

/* ============ 数据条 ============ */
.statsbar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--brand-deep);border-radius:16px;overflow:hidden;color:#fff;
  box-shadow:var(--shadow-1);
}
.statsbar__item{padding:26px 24px;border-right:1px solid rgba(255,255,255,.12)}
.statsbar__item:last-child{border-right:0}
.statsbar__num{
  font-size:clamp(24px,3.4vw,34px);font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.statsbar__num em{font-style:normal;font-size:14px;color:var(--orange);margin-left:4px}
.statsbar__label{font-size:13px;color:rgba(255,255,255,.72);margin-top:6px}
.statsbar__note{margin-top:16px;font-size:13px;color:var(--ink-3)}

/* ============ 相关分类卡 ============ */
.relcards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.relcard{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.relcard:hover{transform:translateY(-2px);border-color:rgba(26,107,176,.4);box-shadow:var(--shadow-2)}
.relcard__media{overflow:hidden}
.relcard__media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.relcard:hover .relcard__media img{transform:scale(1.03)}
.relcard__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto}
.relcard__badge{
  align-self:flex-start;font-size:12.5px;padding:3px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-hover);
}
.relcard h3{font-size:17px;font-weight:600}
.relcard p{font-size:14px;color:var(--ink-3);margin:0}
.relcard__link{margin-top:auto;font-size:14px;font-weight:600;color:var(--brand)}
.relcard:hover .relcard__link{color:var(--brand-hover);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}

/* ============ FAQ ============ */
.faq{max-width:920px;margin:0}
.faq__list.accordion{background:transparent;border:0}
.faq__list .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq__list .accordion-item:hover{border-color:rgba(26,107,176,.35);box-shadow:var(--shadow-2)}
.faq__list .accordion-title{
  position:relative;background:#fff;border:0;border-left:3px solid transparent;
  color:var(--ink);font-size:16px;font-weight:600;line-height:1.55;
  padding:18px 56px 18px 22px;
}
.faq__list .accordion-title:hover,.faq__list .accordion-title:focus{
  background:#F7FAFD;color:var(--brand);
}
.faq__list .accordion-item.is-active .accordion-title{
  color:var(--brand);border-left-color:var(--brand);background:#F7FAFD;
}
.faq__list .accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;margin-top:-14px;
  font-size:20px;line-height:1;color:var(--brand);font-weight:400;
}
.faq__list .accordion-item.is-active .accordion-title::before{content:"–"}
.faq__list .accordion-content{
  border:0;border-top:1px solid var(--line);background:#fff;
  padding:16px 22px 20px;color:var(--ink-2);font-size:15px;
}
.faq__list .accordion-content p{margin:0}

/* ============ CTA ============ */
.cta{
  background:linear-gradient(118deg,var(--brand),var(--brand-deep));
  border-radius:16px;padding:40px 40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:30px;
  box-shadow:var(--shadow-1);
}
.cta__text h2{color:#fff;font-size:clamp(20px,2.6vw,26px);margin-bottom:10px}
.cta__text p{color:rgba(255,255,255,.84);font-size:14.5px;margin:0;max-width:60ch}
.cta__actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* ============ 页脚 ============ */
.footer{position:relative;background:#fff;padding:56px 0 0;margin-top:0}
.footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--teal));
}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:36px}
.footer__brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);margin-bottom:14px}
.footer__brand:hover{color:var(--ink)}
.footer__brand .brand__text{font-size:17px}
.footer__desc{font-size:14px;color:var(--ink-3);max-width:42ch}
.footer__title{font-size:15px;font-weight:600;margin-bottom:14px;color:var(--ink)}
.footer__list{display:grid;gap:9px}
.footer__list a{
  display:inline-block;font-size:14px;color:var(--ink-2);
  transition:color .2s ease,transform .2s ease;
}
.footer__list a:hover{color:var(--brand);transform:translateX(2px)}
.footer__contact{display:grid;gap:11px}
.footer__contact li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--ink-2)}
.footer__contact svg{width:16px;height:16px;color:var(--brand);flex:0 0 auto;margin-top:4px}
.footer__bottom{
  border-top:1px solid var(--line);padding:18px 0 22px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--ink-3);
}
.footer__bottom a{color:var(--ink-3)}
.footer__bottom a:hover{color:var(--brand)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav__link{font-size:13.5px;padding:8px 7px}
  .nav__cta{padding:0 14px}
}
@media (max-width:1023px){
  :root{--sp:64px}
  .nav__search,.nav__links{display:none}
  .nav__toggle{display:inline-flex}
  .nav__inner{min-height:60px}
  .topbar__inner{min-height:44px}
  .overview{grid-template-columns:1fr;gap:24px}
  .matgrid{grid-template-columns:repeat(2,1fr)}
  .relcards{grid-template-columns:repeat(2,1fr)}
  .statsbar{grid-template-columns:repeat(2,1fr)}
  .statsbar__item:nth-child(2){border-right:0}
  .statsbar__item:nth-child(1),.statsbar__item:nth-child(2){border-bottom:1px solid rgba(255,255,255,.12)}
  .cta{flex-direction:column;align-items:flex-start;padding:32px}
  .relcards .relcard:last-child{grid-column:span 2}
}
@media (max-width:767px){
  .section__head{flex-direction:column;align-items:flex-start;gap:8px}
  .pagebanner{padding:40px 0 44px}
  .timeline__item{padding-left:56px}
  .timeline::before{left:15px}
  .timeline__node{width:32px;height:32px;font-size:13px}
}
@media (max-width:639px){
  :root{--sp:44px}
  .container{padding:0 18px}
  body{font-size:15.5px;line-height:1.8}
  .topbar__inner{min-height:40px;gap:8px}
  .topbar__label{font-size:11.5px}
  .topbar__label svg{width:14px;height:14px}
  .countdown__num{min-width:26px;height:24px;font-size:12.5px;padding:0 5px;border-radius:6px}
  .countdown__unit{display:none}
  .countdown__group{gap:4px}
  .topbar__close{padding:2px 10px;font-size:11.5px}
  .brand__text{font-size:16px}
  .brand__text small{font-size:11px}
  .brand__mark{width:34px;height:34px}
  .matgrid{grid-template-columns:1fr}
  .relcards{grid-template-columns:1fr}
  .relcards .relcard:last-child{grid-column:auto}
  .statsbar{grid-template-columns:1fr}
  .statsbar__item{border-right:0;border-bottom:1px solid rgba(255,255,255,.12)}
  .statsbar__item:last-child{border-bottom:0}
  .pagebanner h1{font-size:26px}
  .pagebanner__desc{font-size:14.5px}
  .btn{height:46px}
  .btn--block-sm{width:100%}
  .cta{padding:26px 22px}
  .cta__actions{width:100%}
  .cta__actions .btn{flex:1 1 auto}
  .footer__grid{grid-template-columns:1fr;gap:26px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
  .timeline__body{padding:18px}
}

/* roulang page: category4 */
:root{
  --brand:#1A6BB0;
  --brand-hover:#14568C;
  --brand-light:#E4EFF8;
  --brand-dark:#0C3C63;
  --teal:#0E9E8E;
  --teal-light:#E3F5F2;
  --orange:#FF7A2F;
  --orange-light:#FFEDE2;
  --ink:#0F1B26;
  --sub:#33465A;
  --muted:#61758A;
  --line:#E2EAF2;
  --bg:#F5F8FB;
  --card:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(16,32,46,.06),0 6px 18px rgba(16,32,46,.06);
  --shadow-2:0 6px 14px rgba(16,32,46,.10),0 18px 38px rgba(16,32,46,.12);
  --sp:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;text-decoration-color:rgba(26,107,176,.35);transition:color .18s ease;}
a:hover{color:var(--brand-hover);text-decoration:underline;}
a:visited{color:var(--brand);}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,h5{font-family:inherit;color:var(--ink);font-weight:700;line-height:1.32;letter-spacing:-.01em;margin:0;}
h1{font-size:clamp(28px,4.6vw,44px);}
h2{font-size:clamp(22px,3vw,32px);}
h3{font-size:19px;}
p{margin:0 0 1em;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-weight:600;font-size:15px;padding:12px 22px;border:1px solid transparent;cursor:pointer;transition:all .2s ease;text-decoration:none;line-height:1.2;}
.btn:hover{text-decoration:none;}
.btn--primary{background:var(--brand);color:#fff;}
.btn--primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:#fff;color:var(--brand);border-color:rgba(26,107,176,.35);}
.btn--ghost:hover{background:var(--brand-light);color:var(--brand-hover);border-color:var(--brand);}
.btn--white{background:#fff;color:var(--brand);}
.btn--white:hover{background:var(--brand-light);color:var(--brand-hover);transform:translateY(-1px);}
.btn--sm{padding:9px 16px;font-size:14px;border-radius:999px;}
.btn--block{width:100%;}

/* ---------- 顶部活动条 ---------- */
.topbar{position:sticky;top:0;z-index:70;background:linear-gradient(90deg,#0C3C63,#123F66);color:#fff;}
.topbar.is-hidden{display:none;}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:48px;}
.topbar__label{display:inline-flex;align-items:center;gap:7px;font-size:13px;white-space:nowrap;color:rgba(255,255,255,.92);}
.topbar__label svg{width:16px;height:16px;color:var(--orange);flex:0 0 auto;}
.countdown{display:flex;align-items:center;gap:8px;font-size:13px;}
.countdown__group{display:inline-flex;align-items:center;gap:6px;}
.countdown__item{display:flex;flex-direction:column;align-items:center;min-width:44px;padding:2px 8px;border-radius:8px;background:rgba(255,255,255,.12);}
.countdown__num{font-size:16px;font-weight:700;line-height:1.15;}
.countdown__unit{font-size:10px;color:rgba(255,255,255,.62);}
.countdown__sep{color:rgba(255,255,255,.45);}
.countdown__ended{display:none;font-size:13px;color:rgba(255,255,255,.88);}
.countdown.is-ended .countdown__group{display:none;}
.countdown.is-ended .countdown__ended{display:inline;}
.topbar__close{background:transparent;border:1px solid rgba(255,255,255,.32);color:rgba(255,255,255,.9);font-size:12.5px;padding:4px 12px;border-radius:999px;cursor:pointer;transition:.2s;}
.topbar__close:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- 主导航 ---------- */
.nav{position:relative;background:#fff;box-shadow:0 1px 0 rgba(16,32,46,.04);}
.nav::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--teal));opacity:.85;}
.nav__inner{display:grid;grid-template-columns:auto minmax(260px,1fr) auto;align-items:center;gap:24px;min-height:76px;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand__mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));display:inline-flex;align-items:center;justify-content:center;color:#fff;flex:0 0 auto;}
.brand__mark svg{width:20px;height:20px;}
.brand__text{display:flex;flex-direction:column;font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.2;}
.brand__text small{font-size:11.5px;font-weight:500;color:var(--muted);letter-spacing:0;}
.nav__search{min-width:0;}
.searchbar{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 4px 4px 16px;box-shadow:var(--shadow-1);transition:box-shadow .2s ease,border-color .2s ease;}
.searchbar:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(26,107,176,.18);}
.searchbar__icon{width:18px;height:18px;color:var(--muted);flex:0 0 auto;}
.searchbar input{flex:1;min-width:0;height:38px;border:0;outline:0;background:transparent;font-size:14.5px;color:var(--ink);}
.searchbar input::placeholder{color:var(--muted);}
.searchbar button{flex:0 0 auto;height:38px;padding:0 22px;border:0;border-radius:999px;background:var(--brand);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s ease;}
.searchbar button:hover{background:var(--brand-hover);}
.hotwords{display:flex;flex-wrap:wrap;gap:8px;margin-top:9px;}
.chip{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;background:var(--brand-light);color:var(--brand-dark);font-size:12.5px;transition:.2s;}
.chip:hover{background:var(--brand);color:#fff;text-decoration:none;}
.nav__links{display:flex;align-items:center;gap:18px;white-space:nowrap;}
.nav__link{position:relative;font-size:14.5px;font-weight:500;color:var(--sub);padding:6px 0;transition:color .2s ease;}
.nav__link:hover{color:var(--brand);text-decoration:none;}
.nav__link.is-active{color:var(--brand);font-weight:700;}
.nav__link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:3px;background:var(--brand);}
.nav__toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--sub);cursor:pointer;transition:.2s;}
.nav__toggle:hover{border-color:var(--brand);color:var(--brand);}
.nav__toggle svg{width:20px;height:20px;}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;display:none;}
.drawer.is-open{display:block;}
.drawer__mask{position:absolute;inset:0;background:rgba(12,27,40,.45);}
.drawer__panel{position:absolute;top:0;right:0;width:min(360px,86vw);height:100%;background:#fff;padding:18px;overflow-y:auto;box-shadow:var(--shadow-2);animation:drawerIn .22s ease;}
@keyframes drawerIn{from{transform:translateX(24px);opacity:0;}to{transform:none;opacity:1;}}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer__title{font-size:16px;font-weight:700;}
.drawer__close{width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--sub);font-size:20px;line-height:1;cursor:pointer;}
.drawer__close:hover{border-color:var(--brand);color:var(--brand);}
.drawer .searchbar{margin-bottom:16px;}
.drawer__links{margin-bottom:18px;}
.drawer__links li{border-bottom:1px solid var(--line);}
.drawer__links a{display:block;padding:14px 2px;font-size:15px;font-weight:500;color:var(--sub);}
.drawer__links a:hover{color:var(--brand);text-decoration:none;}
.drawer__links a.is-active{color:var(--brand);font-weight:700;}

/* ---------- 分类横幅 ---------- */
.banner{position:relative;background-color:var(--brand-dark);background-size:cover;background-position:center;display:flex;align-items:center;min-height:300px;padding:68px 0 60px;}
.banner__scrim{position:absolute;inset:0;background:linear-gradient(120deg,rgba(12,60,99,.94) 0%,rgba(26,107,176,.72) 58%,rgba(14,158,142,.44) 100%);}
.banner__inner{position:relative;z-index:1;width:100%;}
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:rgba(255,255,255,.72);margin-bottom:16px;}
.crumb a{color:rgba(255,255,255,.86);}
.crumb a:hover{color:#fff;}
.crumb__sep{opacity:.55;}
.crumb__now{color:#fff;}
.banner h1{color:#fff;margin-bottom:14px;}
.banner__sub{max-width:62ch;color:rgba(255,255,255,.88);font-size:16.5px;margin-bottom:20px;}
.banner__meta{display:flex;flex-wrap:wrap;gap:10px;}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;font-size:12.5px;font-weight:600;}
.badge--glass{background:rgba(255,255,255,.16);color:#fff;}
.badge--brand{background:var(--brand-light);color:var(--brand-dark);}
.badge--teal{background:var(--teal-light);color:var(--teal);}
.badge--orange{background:var(--orange-light);color:#C4551A;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sp) 0;}
.section--white{background:#fff;}
.section--tint{background:var(--bg);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:36px;}
.sec-head h2{margin-top:10px;}
.sec-head__note{margin:0;max-width:48ch;font-size:14.5px;color:var(--muted);}
.eyebrow{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--brand-light);color:var(--brand);font-size:12.5px;font-weight:700;letter-spacing:.04em;}

/* ---------- Tabs ---------- */
.tabs--ky{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 28px;background:transparent;border:0;}
.tabs--ky .tabs-title{float:none;}
.tabs--ky .tabs-title>a{display:inline-block;margin:0;padding:11px 26px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--sub);font-size:15px;font-weight:600;transition:.2s;}
.tabs--ky .tabs-title>a:hover{background:var(--brand-light);border-color:rgba(26,107,176,.35);color:var(--brand);}
.tabs--ky .tabs-title.is-active>a{background:var(--brand);border-color:var(--brand);color:#fff;}
.tabs-content--ky{border:0;background:transparent;}
.tabs-content--ky .tabs-panel{padding:0;}

/* ---------- 对照表 ---------- */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);}
.data-table{width:100%;min-width:720px;margin:0;border-collapse:separate;border-spacing:0;font-size:14.5px;background:#fff;border:0;}
.data-table th{background:var(--brand-light);color:var(--brand-dark);font-weight:700;text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);white-space:nowrap;font-size:14px;}
.data-table td{padding:14px 18px;border-bottom:1px solid var(--line);color:var(--sub);vertical-align:top;}
.data-table tbody tr:nth-child(even) td{background:#F7FAFD;}
.data-table tbody tr:last-child td{border-bottom:0;}
.data-table td:first-child{font-weight:600;color:var(--ink);white-space:nowrap;}

/* ---------- 分组卡 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.topic-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-1);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;}
.topic-card:hover{transform:translateY(-2px);border-color:rgba(26,107,176,.35);box-shadow:var(--shadow-2);}
.topic-card__icon{width:44px;height:44px;border-radius:12px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:14px;}
.topic-card__icon svg{width:22px;height:22px;}
.topic-card h3{margin-bottom:8px;}
.topic-card p{color:var(--muted);font-size:14.5px;margin-bottom:14px;}
.topic-card ul{margin-bottom:16px;}
.topic-card ul li{position:relative;padding-left:18px;margin-bottom:6px;font-size:14px;color:var(--sub);line-height:1.2em;}
.topic-card ul li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--teal);}
.topic-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);}
.linkmore{font-size:14px;font-weight:600;color:var(--brand);}
.linkmore:hover{text-decoration:underline;text-decoration-thickness:2px;color:var(--brand-hover);}

/* ---------- FAQ + 联系卡 ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,1.9fr) minmax(0,1fr);gap:36px;align-items:start;}
.faq-layout__side{position:sticky;top:96px;}
.accordion--ky{background:transparent;border:0;margin:0;}
.accordion--ky .accordion-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:12px;transition:border-color .2s ease,box-shadow .2s ease;}
.accordion--ky .accordion-item:hover{box-shadow:var(--shadow-1);}
.accordion--ky .accordion-item.is-active{border-color:rgba(26,107,176,.45);box-shadow:var(--shadow-1);}
.accordion--ky .accordion-title{position:relative;display:flex;align-items:flex-start;gap:12px;padding:18px 22px;background:#fff;border:0;font-size:16px;font-weight:600;color:var(--ink);line-height:1.55;}
.accordion--ky .accordion-title:hover{background:var(--brand-light);}
.accordion--ky .accordion-title::before{display:none;}
.accordion--ky .accordion-item.is-active .accordion-title{color:var(--brand);}
.accordion--ky .accordion-item.is-active .accordion-title::after{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);}
.accordion--ky .accordion-content{padding:0 22px 20px 22px;border:0;background:#fff;color:var(--sub);font-size:15px;line-height:1.8;}
.accordion--ky .accordion-content p{margin:0;}
.accordion-num{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;min-width:30px;height:24px;padding:0 8px;border-radius:999px;background:var(--brand-light);color:var(--brand);font-size:12.5px;font-weight:700;}
.contact-card{background:#fff;border:1px solid rgba(26,107,176,.32);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-1);}
.contact-card h3{margin-bottom:10px;}
.contact-card>p{color:var(--muted);font-size:14.5px;margin-bottom:18px;}
.contact-list{margin-bottom:20px;}
.contact-list li{display:flex;gap:10px;align-items:flex-start;padding:11px 0;border-top:1px dashed var(--line);font-size:14.5px;color:var(--sub);}
.contact-list li:first-child{border-top:0;padding-top:0;}
.contact-list svg{width:18px;height:18px;color:var(--brand);flex:0 0 auto;margin-top:3px;}
.contact-note{font-size:12.5px;color:var(--muted);margin:12px 0 0;}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(26,107,176,.3);box-shadow:var(--shadow-2);}
.rel-card__media{aspect-ratio:16/10;overflow:hidden;background:var(--brand-light);}
.rel-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease;}
.rel-card:hover .rel-card__media img{transform:scale(1.03);}
.rel-card__body{display:flex;flex-direction:column;gap:10px;padding:20px 22px 22px;flex:1;}
.rel-card__body h3{margin:0;font-size:18px;}
.rel-card__body p{margin:0;font-size:14.5px;color:var(--muted);flex:1;}

/* ---------- CTA 条 ---------- */
.cta-strip{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:40px;border-radius:16px;background:linear-gradient(100deg,var(--brand),var(--brand-dark));color:#fff;box-shadow:var(--shadow-2);}
.cta-strip h2{color:#fff;margin-bottom:10px;}
.cta-strip p{color:rgba(255,255,255,.86);margin:0;max-width:62ch;}
.cta-strip .btn{flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.footer{position:relative;background:#EFF5FA;padding:56px 0 0;color:var(--sub);}
.footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--teal));}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.35fr;gap:32px;padding-bottom:36px;}
.footer__brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:12px;}
.footer__brand:hover{text-decoration:none;}
.footer__brand .brand__text{font-size:16px;}
.footer__desc{font-size:14px;color:var(--muted);max-width:38ch;margin:0;}
.footer__title{font-size:15px;margin-bottom:14px;color:var(--ink);}
.footer__list li{margin-bottom:10px;}
.footer__list a{font-size:14px;color:var(--sub);}
.footer__list a:hover{color:var(--brand);text-decoration:none;padding-left:2px;}
.footer__contact li{display:flex;gap:8px;align-items:flex-start;margin-bottom:10px;font-size:14px;}
.footer__contact svg{width:16px;height:16px;color:var(--brand);flex:0 0 auto;margin-top:3px;}
.footer__bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:18px 0;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav__inner{gap:18px;}
  .nav__links{gap:14px;}
  .nav__link{font-size:14px;}
}
@media (max-width:1023px){
  :root{--sp:64px;}
  .nav__inner{grid-template-columns:auto auto;justify-content:space-between;min-height:64px;}
  .nav__search,.nav__links{display:none;}
  .nav__toggle{display:inline-flex;}
  .banner{min-height:260px;padding:52px 0 46px;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .faq-layout__side{position:static;}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .footer__grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .cta-strip{flex-direction:column;align-items:flex-start;gap:22px;}
}
@media (max-width:767px){
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .rel-grid{grid-template-columns:1fr;}
}
@media (max-width:639px){
  :root{--sp:44px;}
  body{font-size:15.5px;line-height:1.8;}
  .container{padding:0 18px;}
  .topbar__inner{height:40px;}
  .topbar__label{display:none;}
  .countdown__item{min-width:36px;padding:2px 6px;}
  .countdown__num{font-size:14px;}
  .countdown__group{gap:4px;}
  .brand__text{font-size:15.5px;}
  .brand__text small{display:none;}
  .banner{padding:40px 0 36px;}
  .banner__sub{font-size:15px;}
  .topic-grid{grid-template-columns:1fr;}
  .footer__grid{grid-template-columns:1fr;}
  .cta-strip{padding:28px 22px;border-radius:14px;}
  .cta-strip .btn{width:100%;}
  .contact-card{padding:22px;}
  .accordion--ky .accordion-title{padding:16px 16px;font-size:15.5px;}
  .accordion--ky .accordion-content{padding:0 16px 18px;}
}