/* roulang page: index */
:root{
  --brand:#1F63D6;
  --brand-dark:#174FB0;
  --brand-soft:#E8F1FE;
  --accent:#FF7A45;
  --accent-deep:#E85F28;
  --accent-soft:#FFF1EA;
  --ink:#101C2E;
  --muted:#5B6B80;
  --weak:#8A97A8;
  --line:#E3EAF4;
  --line-soft:#E6EDF7;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --footer:#0F2745;
  --ok:#1FA37A;
  --warn:#FFB020;
  --r-lg:20px;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,40,80,.06), 0 10px 30px -14px rgba(16,40,80,.18);
  --sh-2:0 2px 4px rgba(16,40,80,.08), 0 18px 40px -16px rgba(16,40,80,.26);
  --container:1200px;
}

/* ===== base reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4,p,ul,ol,li,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}

/* ===== layout ===== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--soft{background:var(--bg)}
.section--white{background:#fff}
.section--tight{padding:72px 0}

/* ===== topbar ===== */
.topbar{background:#fff;border-bottom:1px solid var(--line);font-size:14px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:46px;padding-top:6px;padding-bottom:6px}
.topbar__left{display:flex;align-items:center;gap:10px;color:var(--muted)}
.topbar__label{color:var(--weak);font-size:13px}
.topbar__mid{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}
.topbar__right{display:flex;align-items:center;gap:14px;color:var(--weak);font-size:13px}
.topbar__close{width:26px;height:26px;border-radius:8px;color:var(--weak);font-size:18px;line-height:1;display:grid;place-items:center;transition:background-color .2s ease,color .2s ease}
.topbar__close:hover{background:var(--brand-soft);color:var(--brand)}
.pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:3px 10px;font-size:12px;line-height:1.4;font-weight:600}
.pill--live{background:var(--accent-soft);color:var(--accent-deep)}
.pill--live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.pill--soft{background:var(--brand-soft);color:var(--brand)}

/* ===== countdown ===== */
.countdown{display:inline-flex;align-items:center;gap:6px}
.countdown__unit{display:inline-flex;align-items:baseline;gap:2px;background:var(--accent-soft);color:var(--accent-deep);border-radius:8px;padding:2px 8px;font-size:13px;font-weight:700}
.countdown__unit b{font-size:14px;min-width:1.5em;text-align:center;font-variant-numeric:tabular-nums;font-family:Inter,ui-sans-serif,system-ui,sans-serif}
.countdown__unit i{font-style:normal;font-size:11px;font-weight:500;opacity:.85}

/* ===== header ===== */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 8px 26px -16px rgba(16,40,80,.35)}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0}
.brand__mark{width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:13px;font-weight:700;letter-spacing:.5px;font-family:Inter,ui-sans-serif,system-ui,sans-serif}
.brand__text{font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.brand:hover .brand__text{color:var(--brand)}
.nav{display:flex;align-items:center;gap:4px}
.nav__link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:999px;font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap}
.nav__link:hover{color:var(--brand);background:var(--brand-soft)}
.nav__link.is-active{color:var(--brand);background:var(--brand-soft);font-weight:600}
.nav__link.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:2px;height:3px;border-radius:3px;background:var(--brand)}
.header__actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 12px;font-size:12px;font-weight:600;line-height:1.4}
.badge--accent{background:var(--accent-soft);color:var(--accent-deep);border:1px solid rgba(255,122,69,.28)}
.badge--brand{background:var(--brand-soft);color:var(--brand)}
.badge--ok{background:rgba(31,163,122,.1);color:var(--ok)}
.menu-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.menu-toggle span{width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s ease,opacity .25s ease}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* mobile drawer */
.drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:12px 0 20px}
.drawer.is-open{display:block}
.drawer__inner{padding:0 16px}
.drawer__link{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 14px;border-radius:10px;font-size:16px;color:var(--ink);font-weight:500}
.drawer__link + .drawer__link{margin-top:4px}
.drawer__link:hover{background:var(--brand-soft);color:var(--brand)}
.drawer__link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.drawer__cta{margin-top:14px;display:block}
.drawer__cta .btn{width:100%}

/* ===== buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-weight:600;font-size:15px;line-height:1;padding:0 20px;height:44px;border:1.5px solid transparent;white-space:nowrap;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
.btn--sm{height:38px;font-size:14px;padding:0 16px}
.btn--lg{height:52px;font-size:16px;padding:0 26px}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(16,40,80,.08),0 10px 24px -14px rgba(31,99,214,.75)}
.btn--primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 2px 4px rgba(16,40,80,.1),0 18px 34px -16px rgba(31,99,214,.85)}
.btn--primary:active{transform:translateY(0)}
.btn--accent{background:var(--accent);color:#fff;box-shadow:0 1px 2px rgba(16,40,80,.08),0 10px 24px -14px rgba(255,122,69,.8)}
.btn--accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px)}
.btn--ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn--ghost:hover{background:var(--brand-soft);color:var(--brand-dark);border-color:var(--brand-dark)}
.btn--white{background:#fff;color:var(--brand)}
.btn--white:hover{background:#fff;color:var(--brand-dark);transform:translateY(-1px)}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

/* ===== hero ===== */
.hero{position:relative;background:#fff;overflow:hidden;padding:64px 0 88px}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(31,99,214,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(31,99,214,.05) 1px,transparent 1px);background-size:34px 34px;-webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.35) 62%,transparent 100%);mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.35) 62%,transparent 100%)}
.hero__grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--brand-soft);color:var(--brand);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;margin-bottom:22px}
.eyebrow i{font-size:12px}
.hero__title{font-size:clamp(30px,4.6vw,46px);line-height:1.25;font-weight:700;letter-spacing:-.3px;margin-bottom:18px}
.hero__sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:520px;margin-bottom:22px}
.hero__countdown{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.hero__countdown-label{font-size:14px;color:var(--muted)}
.hero__trust{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.trust-item{display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-size:13px;color:var(--muted)}
.trust-item i{color:var(--brand);font-size:12px}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px}
.hero__media{position:relative}
.media-frame{position:relative;overflow:hidden;border-radius:var(--r-img);background:var(--brand-soft)}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.media-frame--16-9{aspect-ratio:16/9}
.media-frame--16-10{aspect-ratio:16/10}
.media-frame--4-3{aspect-ratio:4/3}
.hero__media .media-frame{border-radius:var(--r-lg);box-shadow:var(--sh-2)}
.hero__ticket{position:absolute;left:-18px;bottom:-18px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 20px;box-shadow:var(--sh-2);display:flex;align-items:center;gap:14px}
.hero__ticket-num{font-size:30px;font-weight:700;color:var(--accent);line-height:1;font-variant-numeric:tabular-nums;font-family:Inter,ui-sans-serif,system-ui,sans-serif}
.hero__ticket-label{font-size:13px;color:var(--muted);line-height:1.5}
.hero__ribbon{position:absolute;right:18px;top:18px;background:var(--accent);color:#fff;border-radius:999px;padding:6px 14px;font-size:12px;font-weight:600;box-shadow:0 10px 22px -12px rgba(255,122,69,.9)}

/* ===== section head ===== */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:40px}
.section-head__title{font-size:clamp(23px,3vw,32px);line-height:1.35;font-weight:600;letter-spacing:-.2px}
.section-head__desc{margin-top:12px;font-size:15px;color:var(--muted);max-width:660px;line-height:1.8}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);white-space:nowrap;padding-bottom:4px}
.link-more:hover{color:var(--brand-dark);gap:10px}
.section-head--center{flex-direction:column;align-items:center;text-align:center}

/* ===== steps ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step-card{position:relative;background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);padding:32px 28px 30px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(31,99,214,.22)}
.step-card__num{width:46px;height:46px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700;margin-bottom:20px;font-variant-numeric:tabular-nums;font-family:Inter,ui-sans-serif,system-ui,sans-serif}
.step-card__title{font-size:20px;font-weight:600;line-height:1.5;margin-bottom:10px}
.step-card__text{font-size:15px;color:var(--muted);line-height:1.85}
.step-card__foot{margin-top:20px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.step-card__foot:hover{gap:10px;color:var(--brand-dark)}
.steps__foot{margin-top:32px;text-align:center;font-size:15px;color:var(--muted)}
.steps__foot a{font-weight:600}

/* ===== news list ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(31,99,214,.22)}
.news-card__link{display:flex;flex-direction:column;height:100%;color:var(--ink)}
.news-card__media{margin:0}
.news-card:hover .media-frame img{transform:scale(1.045)}
.news-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-card__cat{display:inline-flex;align-self:flex-start;background:var(--brand-soft);color:var(--brand);border-radius:999px;padding:3px 11px;font-size:12px;font-weight:600;margin-bottom:12px;transition:background-color .2s ease,color .2s ease}
.news-card:hover .news-card__cat{background:var(--brand);color:#fff}
.news-card__title{font-size:18px;font-weight:600;line-height:1.55;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__desc{font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.news-card__meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--weak)}
.empty-state{grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);padding:64px 24px;text-align:center;color:var(--weak)}
.empty-state i{font-size:28px;color:var(--brand-soft);display:block;margin-bottom:14px}
.empty-state p{font-size:15px;margin-bottom:14px}

/* ===== proof ===== */
.proof-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.proof-row + .proof-row{margin-top:72px}
.proof-row--reverse .proof-row__media{order:2}
.proof-row .media-frame{border-radius:var(--r-card);box-shadow:var(--sh-1)}
.proof-stat{margin-bottom:18px}
.proof-stat__num{display:block;font-size:42px;font-weight:700;line-height:1;color:var(--accent);font-variant-numeric:tabular-nums;font-family:Inter,ui-sans-serif,system-ui,sans-serif;margin-bottom:10px}
.proof-stat__label{font-size:14px;color:var(--muted)}
.proof-quote{font-size:16px;line-height:1.85;color:var(--ink);border-left:3px solid var(--brand);background:#fff;border-radius:0 12px 12px 0;padding:16px 20px;margin:0 0 16px}
.proof-source{font-size:13px;color:var(--weak)}
.proof-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

/* ===== faq ===== */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:16px 24px;align-items:start}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .25s ease,background-color .25s ease}
.faq-item.is-open{background:var(--bg);border-color:rgba(31,99,214,.25)}
.faq-item__q{width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;text-align:left;padding:20px 22px;font-size:16px;font-weight:600;line-height:1.6;color:var(--ink)}
.faq-item__q:hover{color:var(--brand)}
.faq-item__icon{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-size:12px;transition:transform .28s ease,background-color .28s ease,color .28s ease;margin-top:3px}
.faq-item.is-open .faq-item__icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-item__a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.faq-item.is-open .faq-item__a{grid-template-rows:1fr}
.faq-item__a>div{overflow:hidden;padding:0 22px;font-size:15px;color:var(--muted);line-height:1.85;transition:padding .3s ease}
.faq-item.is-open .faq-item__a>div{padding-bottom:22px}

/* ===== cta band ===== */
.cta-band{background:var(--brand-soft);border-radius:var(--r-lg);padding:52px;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.cta-band__title{font-size:clamp(23px,3vw,30px);line-height:1.4;font-weight:600;margin-bottom:14px}
.cta-band__text{font-size:15px;color:var(--muted);line-height:1.85;margin-bottom:22px;max-width:520px}
.cta-form{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1)}
.cta-form__row{margin-bottom:16px}
.cta-form label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.cta-form input,.cta-form textarea{width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);padding:0 14px;font-size:15px;background:#fff;transition:border-color .2s ease,box-shadow .2s ease}
.cta-form textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.cta-form input:focus,.cta-form textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);outline:none}
.cta-form__hint{font-size:13px;color:var(--weak);margin-top:12px;line-height:1.7}
.form-note{display:none;margin-top:14px;font-size:14px;color:var(--ok);font-weight:600}
.form-note.is-show{display:block}
.cta-guards{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;font-size:13px;color:var(--muted)}
.cta-guards span{display:inline-flex;align-items:center;gap:7px}
.cta-guards i{color:var(--ok);font-size:12px}

/* ===== channel list ===== */
.channel-list{border-top:1px solid var(--line)}
.channel-item{display:grid;grid-template-columns:80px 220px 1fr auto;gap:24px;align-items:center;padding:26px 22px;border-bottom:1px solid var(--line);border-radius:12px;color:var(--ink);transition:background-color .25s ease,border-color .25s ease,transform .25s ease}
.channel-item:hover{background:#fff;border-color:rgba(31,99,214,.22);transform:translateX(4px)}
.channel-item__num{font-size:20px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;font-family:Inter,ui-sans-serif,system-ui,sans-serif}
.channel-item__title{font-size:18px;font-weight:600;color:var(--ink)}
.channel-item:hover .channel-item__title{color:var(--brand)}
.channel-item__desc{font-size:14px;color:var(--muted);line-height:1.8}
.channel-item__go{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;color:var(--brand);font-size:13px;transition:background-color .25s ease,color .25s ease,border-color .25s ease}
.channel-item:hover .channel-item__go{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ===== footer ===== */
.site-footer{background:var(--footer);color:rgba(255,255,255,.78);padding:72px 0 0;margin-top:8px}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:52px}
.footer__brand .brand{color:#fff}
.footer__brand .brand__mark{background:var(--accent)}
.footer__brand .brand:hover .brand__text{color:var(--accent)}
.footer__desc{margin-top:18px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:300px}
.footer__badge{display:inline-flex;align-items:center;gap:7px;margin-top:18px;border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:5px 13px;font-size:12px;color:rgba(255,255,255,.8)}
.footer__badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ok);display:inline-block}
.footer__title{font-size:14px;font-weight:600;color:rgba(255,255,255,.92);letter-spacing:.4px;margin-bottom:16px}
.footer__list li + li{margin-top:10px}
.footer__list a,.footer__list span{display:inline-block;font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease,transform .2s ease}
.footer__list a:hover{color:var(--accent);transform:translateX(2px)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 24px 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:rgba(255,255,255,.5)}
.footer__bottom p{margin:0}

/* ===== responsive ===== */
@media (max-width:1023px){
  .hero__grid{grid-template-columns:1fr;gap:44px}
  .hero{padding:48px 0 72px}
  .hero__media{order:-1}
  .hero__ticket{left:auto;right:16px;bottom:-16px}
  .steps{grid-template-columns:repeat(3,1fr);gap:16px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .proof-row{grid-template-columns:1fr;gap:28px}
  .proof-row--reverse .proof-row__media{order:0}
  .faq{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:40px;gap:32px}
  .channel-item{grid-template-columns:60px 1fr auto;gap:16px}
  .channel-item__desc{grid-column:2/3}
  .footer__grid{grid-template-columns:1fr 1fr;gap:36px}
  .nav{display:none}
  .menu-toggle{display:flex}
  .header__actions .badge{display:none}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 16px}
  .section{padding:64px 0}
  .section--tight{padding:52px 0}
  .topbar__mid,.topbar__right{display:none}
  .topbar__inner{min-height:42px}
  .header__inner{min-height:64px;gap:12px}
  .brand__text{font-size:16px}
  .header__actions .btn--primary{display:none}
  .hero__cta .btn{width:100%}
  .hero__title{letter-spacing:0}
  .hero__ticket{padding:12px 16px}
  .hero__ticket-num{font-size:24px}
  .steps{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .cta-band{padding:28px 20px;border-radius:var(--r-card)}
  .cta-form{padding:20px}
  .channel-item{grid-template-columns:48px 1fr;padding:20px 12px}
  .channel-item__desc{grid-column:1/-1;margin-top:4px}
  .channel-item__go{display:none}
  .footer__grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .footer__bottom{flex-direction:column;align-items:flex-start;padding:20px 16px 24px}
  .proof-stat__num{font-size:34px}
}
@media (max-width:519px){
  .hero__countdown{width:100%}
  .trust-item{font-size:12px}
  .countdown__unit{padding:2px 6px}
}

/* roulang page: article */
:root{
  --primary:#1F63D6;
  --primary-dark:#174FB0;
  --primary-soft:#E8F1FE;
  --accent:#FF7A45;
  --accent-strong:#E85F28;
  --accent-soft:#FFF1EA;
  --text:#101C2E;
  --muted:#5B6B80;
  --weak:#8A97A8;
  --border:#E3EAF4;
  --border-soft:#E6EDF7;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --success:#1FA37A;
  --warn:#FFB020;
  --footer-bg:#0F2745;
  --radius-card:16px;
  --radius-media:12px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,40,80,.06),0 10px 30px -14px rgba(16,40,80,.18);
  --shadow-md:0 2px 4px rgba(16,40,80,.08),0 18px 40px -16px rgba(16,40,80,.26);
  --container:1200px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",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:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:1.25em}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
::selection{background:var(--primary-soft);color:var(--primary-dark)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section--tight{padding:56px 0}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section__title{font-size:clamp(23px,3vw,32px);line-height:1.35;font-weight:600;letter-spacing:.2px}
.section__sub{font-size:15px;color:var(--muted);margin-top:8px;max-width:640px}
.section__link{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.section__link i{transition:transform .2s ease}
.section__link:hover i{transform:translateX(3px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  border:1.5px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn--primary{background:var(--primary);color:#fff}
.btn--primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn--primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn--ghost{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn--ghost:hover{background:var(--primary-soft);color:var(--primary-dark)}
.btn--accent{background:var(--accent);color:#fff}
.btn--accent:hover{background:var(--accent-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn--accent:active{transform:translateY(0)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 标签 / 徽章 ---------- */
.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:500;line-height:1.4}
.tag{display:inline-flex;align-items:center;padding:5px 14px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:500;transition:background-color .2s ease,color .2s ease}
.tag:hover{background:var(--primary);color:#fff}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12.5px;line-height:1.4;font-weight:500}
.badge--soft{background:var(--primary-soft);color:var(--primary-dark)}
.badge--accent{background:var(--accent-soft);color:var(--accent-strong)}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--success);display:inline-block}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--border);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 10px 26px -20px rgba(16,40,80,.5)}
.header__inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700}
.brand:hover{color:var(--text)}
.brand__mark{width:38px;height:38px;border-radius:11px;background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;letter-spacing:.6px;flex:0 0 auto}
.brand__text{font-size:17px;letter-spacing:.3px;white-space:nowrap}
.nav{display:flex;align-items:center;gap:4px;margin-left:10px}
.nav__link{position:relative;padding:8px 13px;border-radius:999px;color:var(--muted);font-size:15px;font-weight:500;transition:background-color .2s ease,color .2s ease}
.nav__link:hover{color:var(--primary);background:var(--primary-soft)}
.nav__link.is-active{color:var(--primary);background:var(--primary-soft)}
.nav__link.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:1px;height:3px;border-radius:3px;background:var(--primary)}
.nav__link:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.header__actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.header__badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;background:var(--accent-soft);color:var(--accent-strong);font-size:12.5px;font-weight:500}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--border);align-items:center;justify-content:center;flex-direction:column;gap:5px;background:#fff}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .25s ease,opacity .2s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;background:#fff;z-index:55;
  padding:16px 24px 40px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(102%);visibility:hidden;
  transition:transform .3s ease,visibility .3s ease;overflow-y:auto;
  border-top:1px solid var(--border);
}
.nav-drawer.is-open{transform:none;visibility:visible}
.nav-drawer__link{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;color:var(--muted);font-size:16px;font-weight:500}
.nav-drawer__link:hover{background:var(--primary-soft);color:var(--primary)}
.nav-drawer__link.is-active{background:var(--primary-soft);color:var(--primary)}
.nav-drawer .btn{margin-top:18px}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);padding:22px 0 4px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb__sep{color:#C7D3E4}
.breadcrumb__current{color:var(--weak);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-hero{padding:16px 0 28px}
.article-hero__inner{max-width:880px}
.article-title{font-size:clamp(30px,4.6vw,46px);line-height:1.25;font-weight:700;letter-spacing:.2px;margin:18px 0 0;word-break:break-word}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:22px;color:var(--muted);font-size:14px}
.meta__item{display:inline-flex;align-items:center;gap:7px}
.meta__item i{color:var(--primary);font-size:13px}
.article-hero__foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:26px;padding-top:20px;border-top:1px dashed var(--border)}
.article-hero__hint{font-size:14px;color:var(--weak)}

/* ---------- 媒体框 ---------- */
.media-frame{border-radius:var(--radius-card);overflow:hidden;background:var(--primary-soft);aspect-ratio:16/9;box-shadow:var(--shadow-sm)}
.media-frame img{width:100%;height:100%;object-fit:cover}
.article-cover{max-width:980px;margin:0 auto}

/* ---------- 正文面板 ---------- */
.article-panel{background:var(--card);border:1px solid var(--border-soft);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:52px 48px;max-width:920px;margin:48px auto 0}
.article-body{max-width:780px;margin:0 auto;font-size:17px;line-height:1.9;color:#1B2A41}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 22px}
.article-body h2{position:relative;font-size:clamp(23px,3vw,32px);line-height:1.35;font-weight:600;color:var(--text);margin:44px 0 18px;padding-left:16px}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;background:var(--primary)}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--text);margin:34px 0 14px}
.article-body h4{font-size:17px;font-weight:600;margin:26px 0 10px}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:24px}
.article-body li{margin-bottom:9px}
.article-body ul li::marker{color:var(--primary)}
.article-body ol li::marker{color:var(--primary);font-weight:600}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--primary-dark)}
.article-body strong{font-weight:600;color:var(--text)}
.article-body blockquote{margin:0 0 24px;padding:18px 22px;background:var(--bg);border-left:3px solid var(--primary);border-radius:0 var(--radius-media) var(--radius-media) 0;color:var(--muted)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body figure{margin:0 0 24px}
.article-body img{border-radius:var(--radius-media);margin:0 auto}
.article-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--border);padding:11px 14px;text-align:left}
.article-body th{background:var(--primary-soft);color:var(--primary-dark);font-weight:600}
.article-body code{background:var(--bg);border:1px solid var(--border);border-radius:6px;padding:2px 6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--border);margin:36px 0}
.article-body .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.article-body pre{overflow-x:auto;background:#0F2745;color:#DCE7F7;padding:18px 20px;border-radius:var(--radius-media);margin:0 0 24px;font-size:14px;line-height:1.7}

/* ---------- 标签行 ---------- */
.tag-row{max-width:780px;margin:44px auto 0;padding-top:26px;border-top:1px solid var(--border);display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-row__label{font-size:13px;color:var(--weak);margin-right:4px}

/* ---------- 空状态 ---------- */
.empty-state{max-width:780px;margin:56px auto 0;text-align:center;background:#fff;border:1px dashed var(--border);border-radius:var(--radius-lg);padding:64px 28px;box-shadow:var(--shadow-sm)}
.empty-state__icon{width:64px;height:64px;border-radius:50%;background:var(--primary-soft);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px}
.empty-state h2{font-size:22px;font-weight:600;margin-bottom:10px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:24px}

/* ---------- 卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border-soft);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(31,99,214,.22)}
.card:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.card__media{aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft)}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.card:hover .card__media img{transform:scale(1.04)}
.card__body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__title{font-size:18px;line-height:1.5;font-weight:600;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card__title{color:var(--primary)}
.card__desc{font-size:14px;line-height:1.72;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card__foot{margin-top:auto;padding-top:14px;border-top:1px dashed var(--border);display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--weak)}
.card__foot .pill{font-size:12px;padding:3px 10px}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--primary-soft);padding:72px 0}
.cta-band__inner{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.cta-band__title{font-size:clamp(23px,3vw,32px);line-height:1.35;font-weight:600;color:var(--text)}
.cta-band__desc{margin-top:14px;font-size:15.5px;color:var(--muted);max-width:520px}
.cta-band__points{margin-top:22px;display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--muted)}
.cta-band__points li{list-style:none;display:flex;align-items:center;gap:9px}
.cta-band__points i{color:var(--success);font-size:13px}
.cta-form{background:#fff;border:1px solid var(--border-soft);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);padding:26px 24px}
.field{margin-bottom:14px}
.field label{display:block;font-size:14px;color:var(--muted);margin-bottom:7px}
.field input,.field select{width:100%;height:48px;border-radius:var(--radius-btn);border:1px solid var(--border);background:#fff;padding:0 14px;font-size:15px;color:var(--text);transition:border-color .2s ease,box-shadow .2s ease}
.field input::placeholder{color:var(--weak)}
.field input:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,99,214,.16)}
.field input:invalid{border-color:#E4756A}
.form-note{font-size:12.5px;color:var(--weak);margin-top:12px;text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:#C9D6E8}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:34px;padding:66px 24px 0}
.footer__brand .brand{color:#fff}
.footer__brand .brand:hover{color:#fff}
.footer__brand .brand__mark{background:var(--accent)}
.footer__desc{margin-top:16px;font-size:14px;line-height:1.8;color:#9FB2CC;max-width:320px}
.footer__badge{display:inline-block;margin-top:16px;padding:5px 12px;border-radius:999px;background:rgba(255,122,69,.16);color:#FFB79A;font-size:12.5px}
.footer__title{font-size:14px;font-weight:600;color:rgba(255,255,255,.74);margin-bottom:16px}
.footer__list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px;font-size:14px;color:#B9C8DD}
.footer__list a{color:#C9D6E8;display:inline-block;transition:color .2s ease,transform .2s ease}
.footer__list a:hover{color:var(--accent);transform:translateX(2px)}
.footer__bottom{margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:22px 24px 30px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:#8FA3BF}

/* ---------- 返回顶部 ---------- */
.to-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:12px;background:#fff;border:1px solid var(--border);color:var(--primary);box-shadow:var(--shadow-sm);display:inline-flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease,transform .2s ease;z-index:40}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .footer__grid{grid-template-columns:1fr 1fr;gap:30px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band__inner{grid-template-columns:1fr;gap:32px}
  .article-panel{padding:40px 32px}
}
@media (max-width:900px){
  .nav{display:none}
  .nav-toggle{display:inline-flex}
  .header__badge{display:none}
  .section{padding:64px 0}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 16px}
  .footer__grid{padding:52px 16px 0}
  .footer__bottom{padding:20px 16px 28px;flex-direction:column;align-items:flex-start}
  .section{padding:56px 0}
  .article-panel{padding:28px 20px;border-radius:var(--radius-card);margin-top:32px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{margin-top:36px}
  .article-hero__foot{align-items:stretch}
  .article-hero__foot .btn{width:100%}
  .grid-3{grid-template-columns:1fr}
  .article-cover .media-frame{border-radius:var(--radius-card)}
  .cta-form{padding:22px 18px}
  .to-top{right:16px;bottom:18px}
}
@media (max-width:520px){
  .brand__text{font-size:15.5px}
  .header__inner{min-height:66px;gap:12px}
  .nav-drawer{top:66px}
  .header__actions .btn--accent{display:none}
  .footer__grid{grid-template-columns:1fr}
  .cta-band__points{font-size:13.5px}
  .card__title{font-size:17px}
}

/* roulang page: category1 */
:root{
  --blue:#1F63D6;
  --blue-dark:#174FB0;
  --blue-soft:#E8F1FE;
  --orange:#FF7A45;
  --orange-deep:#E85F28;
  --orange-soft:#FFF1EA;
  --ink:#101C2E;
  --muted:#5B6B80;
  --weak:#8A97A8;
  --line:#E3EAF4;
  --line-soft:#E6EDF7;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --ok:#1FA37A;
  --warn:#FFB020;
  --footer:#0F2745;
  --r-xl:20px;
  --r-lg:16px;
  --r-sm:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,40,80,.06),0 10px 30px -14px rgba(16,40,80,.18);
  --sh-2:0 2px 4px rgba(16,40,80,.08),0 18px 40px -16px rgba(16,40,80,.26);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--blue);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease}
a:hover{color:var(--blue-dark)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
summary{list-style:none;cursor:pointer}
summary::-webkit-details-marker{display:none}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;transition:box-shadow .22s ease}
.site-header.is-scrolled{box-shadow:0 4px 22px -14px rgba(16,40,80,.35)}
.topbar{background:var(--blue-soft);border-bottom:1px solid var(--line)}
.topbar.is-hidden{display:none}
.topbar__inner{display:flex;align-items:center;gap:18px;min-height:46px;padding-top:6px;padding-bottom:6px}
.topbar__label{font-size:14px;color:var(--muted);margin-right:10px}
.topbar__timer{display:flex;align-items:center;flex-wrap:wrap}
.timer{display:inline-flex;align-items:center;gap:6px}
.timer__box{display:inline-flex;align-items:baseline;gap:3px;background:var(--orange-soft);color:var(--orange-deep);border-radius:8px;padding:3px 8px;font-size:13px;line-height:1.4}
.timer__box b{font-size:15px;font-weight:700;font-variant-numeric:tabular-nums}
.timer__box i{font-style:normal;font-size:12px;opacity:.85}
.topbar__status{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--blue);background:#fff;border:1px solid var(--line);border-radius:999px;padding:3px 12px}
.topbar__status .dot{width:6px;height:6px;border-radius:50%;background:var(--ok);display:inline-block}
.topbar__note{margin-left:auto;font-size:13px;color:var(--muted)}
.topbar__close{width:26px;height:26px;border-radius:50%;color:var(--muted);font-size:18px;line-height:1;display:flex;align-items:center;justify-content:center;transition:background-color .18s ease,color .18s ease}
.topbar__close:hover{background:#fff;color:var(--blue)}
.header__bar{border-bottom:1px solid var(--line)}
.header__inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand__mark{width:36px;height:36px;border-radius:11px;background:var(--blue);color:#fff;font-weight:700;font-size:14px;letter-spacing:.5px;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px -8px rgba(31,99,214,.9)}
.brand__text{font-size:19px;font-weight:700;letter-spacing:.2px}
.nav{display:flex;align-items:center;gap:6px;margin:0 auto}
.nav__link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:999px;font-size:15px;color:var(--muted);font-weight:500}
.nav__link:hover{color:var(--blue);background:var(--blue-soft)}
.nav__link.is-active{color:var(--blue);background:var(--blue-soft);font-weight:600}
.nav__link.is-active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-16px;width:26px;height:3px;border-radius:3px;background:var(--blue)}
.header__actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.header__badge{font-size:12px;line-height:1.4;color:var(--orange-deep);background:var(--orange-soft);border-radius:999px;padding:4px 10px;font-weight:600}
.header__toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);flex-direction:column;justify-content:center;align-items:center;gap:4px}
.header__toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink)}
.nav-overlay{position:fixed;inset:0;background:rgba(16,28,46,.42);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:70}
.nav-overlay.is-visible{opacity:1;visibility:visible}
body.no-scroll{overflow:hidden}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--r-btn);font-size:16px;font-weight:600;border:1.5px solid transparent;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--blue);color:#fff;box-shadow:0 10px 24px -14px rgba(31,99,214,.95)}
.btn--primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--orange{background:var(--orange);color:#fff;box-shadow:0 10px 24px -14px rgba(255,122,69,.95)}
.btn--orange:hover{background:#F26733;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--ghost{border-color:var(--blue);color:var(--blue);background:transparent}
.btn--ghost:hover{background:var(--blue-soft);color:var(--blue-dark)}
.btn--sm{height:40px;padding:0 16px;font-size:14px;border-radius:9px}
.btn--block{width:100%}
.btn[disabled]{opacity:.4;cursor:not-allowed}

/* ---------- section ---------- */
.section{padding:96px 0}
.section--tight{padding:64px 0}
.section--white{background:#fff}
.section--soft{background:var(--blue-soft)}
.section__head{max-width:760px;margin-bottom:40px}
.section__head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--blue);background:var(--blue-soft);border-radius:999px;padding:5px 14px;margin-bottom:14px}
.section--soft .eyebrow{background:#fff}
.section__title{font-size:clamp(23px,3vw,32px);line-height:1.35;font-weight:600;letter-spacing:.2px}
.section__desc{margin-top:14px;font-size:16px;color:var(--muted);line-height:1.85}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--blue)}
.link-more:hover{gap:10px;color:var(--blue-dark)}

/* ---------- hero ---------- */
.hero{position:relative;padding:72px 0 88px;background:
  radial-gradient(circle at 12% 18%,rgba(31,99,214,.06),transparent 42%),
  linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%)}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero__title{font-size:clamp(30px,4.6vw,46px);line-height:1.25;font-weight:700;letter-spacing:.4px}
.hero__title em{font-style:normal;color:var(--blue)}
.hero__sub{margin-top:18px;font-size:18px;color:var(--muted);max-width:30em}
.hero__badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.badge{display:inline-flex;align-items:center;gap:7px;font-size:13px;line-height:1.4;color:var(--muted);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 13px}
.badge i{width:6px;height:6px;border-radius:50%;background:var(--orange);display:inline-block;font-style:normal}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero__media{position:relative}
.media-frame{position:relative;overflow:hidden;border-radius:var(--r-sm);background:var(--blue-soft)}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:16/10;border-radius:var(--r-xl)}
.media-frame--card{aspect-ratio:4/3}
.media-frame--std{aspect-ratio:16/9}
.hero__tag{position:absolute;left:18px;top:18px;z-index:2;background:var(--orange);color:#fff;font-size:13px;font-weight:600;border-radius:999px;padding:6px 14px;box-shadow:0 10px 22px -12px rgba(255,122,69,.95)}
.hero__note{margin-top:16px;font-size:14px;color:var(--weak)}

/* ---------- breadcrumb ---------- */
.crumb{padding:18px 0 0;font-size:13px;color:var(--weak)}
.crumb a{color:var(--weak)}
.crumb a:hover{color:var(--blue)}
.crumb span.sep{margin:0 8px;color:var(--line)}
.crumb strong{color:var(--muted);font-weight:500}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-lg);padding:24px 22px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.stat:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(31,99,214,.24)}
.stat__num{font-size:30px;font-weight:700;color:var(--orange-deep);line-height:1.2;font-variant-numeric:tabular-nums}
.stat__num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--orange-deep)}
.stat__label{margin-top:8px;font-size:15px;color:var(--muted)}

/* ---------- cards ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(31,99,214,.24)}
.card__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__title{font-size:19px;font-weight:600;line-height:1.5}
.card__text{font-size:15px;color:var(--muted);line-height:1.8}
.card__meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--weak)}
.tag{display:inline-flex;align-items:center;font-size:12.5px;line-height:1.4;color:var(--blue);background:var(--blue-soft);border-radius:999px;padding:4px 11px;font-weight:500;transition:background-color .18s ease,color .18s ease}
.tag:hover{background:var(--blue);color:#fff}
.tag--orange{color:var(--orange-deep);background:var(--orange-soft)}
.tag--orange:hover{background:var(--orange);color:#fff}
.card__link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--blue)}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:3fr 9fr;gap:36px;align-items:start}
.toc{position:sticky;top:140px;background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1)}
.toc__title{font-size:14px;font-weight:600;color:var(--muted);letter-spacing:.5px;margin-bottom:12px}
.toc__link{display:block;font-size:15px;color:var(--muted);padding:9px 12px;border-radius:9px;border-left:3px solid transparent;transition:background-color .18s ease,color .18s ease,border-color .18s ease}
.toc__link:hover{background:var(--bg);color:var(--blue)}
.toc__link.is-current{color:var(--blue);background:var(--blue-soft);border-left-color:var(--blue);font-weight:600}
.toc__foot{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--weak);line-height:1.7}
.step-list{display:flex;flex-direction:column;gap:20px}
.step{display:grid;grid-template-columns:64px 1fr;gap:20px;background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(31,99,214,.24)}
.step__no{width:48px;height:48px;border-radius:50%;background:var(--orange-soft);color:var(--orange-deep);font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums}
.step__head{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.step__title{font-size:20px;font-weight:600;line-height:1.5}
.step__time{font-size:12.5px;color:var(--muted);background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:3px 11px}
.step__text{margin-top:10px;font-size:15.5px;color:var(--muted)}
.step__points{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:5px 12px}
.chip::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--blue);display:inline-block}
.step__link{margin-top:16px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--blue)}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.check-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-sm);padding:20px;box-shadow:var(--sh-1)}
.check-item__icon{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--blue-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.check-item h3{font-size:16px;font-weight:600;line-height:1.5}
.check-item p{margin-top:6px;font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- blockers ---------- */
.block-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.block-item{background:#fff;border:1px solid var(--line-soft);border-left:3px solid var(--orange);border-radius:var(--r-sm);padding:22px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease}
.block-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.block-item h3{font-size:17px;font-weight:600;display:flex;align-items:center;gap:10px}
.block-item h3 span{font-size:13px;color:var(--orange-deep);background:var(--orange-soft);border-radius:6px;padding:2px 8px;font-weight:600}
.block-item p{margin-top:10px;font-size:15px;color:var(--muted)}

/* ---------- faq ---------- */
.faq{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.faq__item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:0 22px;transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease}
.faq__item[open]{background:var(--bg);border-color:var(--line);box-shadow:var(--sh-1)}
.faq__q{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:20px 0;font-size:17px;font-weight:600;line-height:1.6;color:var(--ink)}
.faq__icon{flex:0 0 auto;position:relative;width:22px;height:22px;border-radius:50%;background:var(--blue-soft);margin-top:2px;transition:transform .22s ease,background-color .22s ease}
.faq__icon::before,.faq__icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--blue);border-radius:2px;transform:translate(-50%,-50%)}
.faq__icon::before{width:10px;height:2px}
.faq__icon::after{width:2px;height:10px}
.faq__item[open] .faq__icon{transform:rotate(45deg);background:var(--orange-soft)}
.faq__item[open] .faq__icon::before,.faq__item[open] .faq__icon::after{background:var(--orange-deep)}
.faq__a{padding:0 0 22px;font-size:15.5px;color:var(--muted);line-height:1.85;border-top:1px dashed var(--line);padding-top:16px}

/* ---------- cta ---------- */
.cta-band{background:var(--blue-soft);border-radius:var(--r-xl);padding:44px;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.cta-band__title{font-size:clamp(22px,2.6vw,28px);font-weight:600;line-height:1.4}
.cta-band__text{margin-top:12px;font-size:16px;color:var(--muted)}
.cta-band__list{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1)}
.field{margin-bottom:14px}
.field label{display:block;font-size:14px;font-weight:500;color:var(--muted);margin-bottom:6px}
.field input{width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);padding:0 14px;font-size:15px;color:var(--ink);background:#fff;transition:border-color .18s ease,box-shadow .18s ease}
.field input::placeholder{color:var(--weak)}
.field input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(31,99,214,.14)}
.form__note{margin-top:12px;font-size:13px;color:var(--weak);line-height:1.7}
.guarantee{display:flex;flex-wrap:wrap;gap:20px;margin-top:18px;font-size:14px;color:var(--muted)}
.guarantee span{display:inline-flex;align-items:center;gap:7px}
.guarantee span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ok)}

/* ---------- footer ---------- */
.site-footer{background:var(--footer);color:#fff;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-top:64px;padding-bottom:44px}
.footer__col h4{font-size:14px;font-weight:600;color:rgba(255,255,255,.66);letter-spacing:.5px;margin-bottom:16px}
.footer__brand .brand{color:#fff}
.footer__brand .brand__mark{background:var(--orange)}
.footer__brand .brand__text{color:#fff;font-size:18px}
.footer__desc{margin-top:16px;font-size:14.5px;color:rgba(255,255,255,.7);line-height:1.8;max-width:30em}
.footer__badge{display:inline-flex;margin-top:16px;font-size:12.5px;color:#fff;background:rgba(255,122,69,.22);border:1px solid rgba(255,122,69,.5);border-radius:999px;padding:5px 13px}
.footer__list li{margin-bottom:10px;font-size:14.5px}
.footer__list a,.footer__list span{color:rgba(255,255,255,.76);font-size:14.5px;display:inline-block;transition:color .18s ease,transform .18s ease}
.footer__list a:hover{color:var(--orange);transform:translateX(2px)}
.footer__bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;border-top:1px solid rgba(255,255,255,.14);padding-top:22px;padding-bottom:30px;font-size:13.5px;color:rgba(255,255,255,.6)}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 20px}
  .section{padding:72px 0}
  .hero{padding:52px 0 64px}
  .hero__grid{grid-template-columns:1fr;gap:36px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:1fr;gap:24px}
  .toc{position:static}
  .toc__list{display:flex;flex-wrap:wrap;gap:8px}
  .toc__link{border-left:0;border:1px solid var(--line);border-radius:999px;padding:7px 14px}
  .toc__link.is-current{border-color:var(--blue)}
  .toc__foot{display:none}
  .cta-band{grid-template-columns:1fr;padding:32px}
  .footer__grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .nav{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:4px;padding:96px 20px 28px;margin:0;transform:translateX(102%);transition:transform .28s ease;box-shadow:-16px 0 44px -24px rgba(16,40,80,.5);z-index:90;overflow-y:auto}
  .site-header.is-open .nav{transform:none}
  .nav__link{height:48px;padding:0 14px;border-radius:10px;font-size:16px}
  .nav__link.is-active::after{display:none}
  .header__toggle{display:flex}
  .nav-overlay{z-index:85}
  .header__inner{gap:12px}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .container{padding:0 16px}
  .topbar__note,.topbar__status{display:none}
  .topbar__inner{gap:10px}
  .topbar__label{font-size:13px}
  .header__badge{display:none}
  .brand__text{font-size:17px}
  .hero__sub{font-size:17px}
  .hero__cta{gap:12px}
  .hero__cta .btn{width:100%}
  .stats{grid-template-columns:1fr;gap:14px}
  .grid-4,.grid-3,.grid-2,.check-grid,.block-list,.faq{grid-template-columns:1fr}
  .step{grid-template-columns:1fr;gap:14px;padding:20px}
  .step__no{width:40px;height:40px}
  .cta-band{padding:24px;border-radius:var(--r-lg)}
  .form{padding:20px}
  .form .btn{width:100%}
  .footer__grid{grid-template-columns:1fr;padding-top:48px;padding-bottom:32px}
  .footer__bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .hero__title{letter-spacing:0}
  .timer__box{padding:2px 6px}
  .section__title{letter-spacing:0}
}

/* roulang page: category3 */
:root{
  --blue:#1F63D6;
  --blue-dark:#174FB0;
  --blue-soft:#E8F1FE;
  --orange:#FF7A45;
  --orange-soft:#FFF1EA;
  --orange-deep:#E85F28;
  --ink:#101C2E;
  --ink-2:#5B6B80;
  --ink-3:#8A97A8;
  --line:#E3EAF4;
  --bg:#F5F8FD;
  --white:#FFFFFF;
  --green:#1FA37A;
  --warn:#FFB020;
  --footer-bg:#0F2745;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow:0 1px 2px rgba(16,40,80,.06), 0 10px 30px -14px rgba(16,40,80,.18);
  --shadow-hover:0 2px 4px rgba(16,40,80,.08), 0 18px 40px -16px rgba(16,40,80,.26);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
body.is-locked{overflow:hidden;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--blue);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--blue-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;letter-spacing:.2px;}
h1{font-size:clamp(30px,4.6vw,46px);line-height:1.25;font-weight:700;}
h2{font-size:clamp(23px,3vw,32px);line-height:1.35;}
h3{font-size:20px;line-height:1.5;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:4px;}

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

/* ---------- 顶部状态条 ---------- */
.topbar{
  background:var(--blue-soft);
  border-bottom:1px solid var(--line);
  font-size:14px;
  color:var(--ink-2);
}
.topbar.is-hidden{display:none;}
.topbar__inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:46px;
}
.countdown{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.countdown__label{font-size:13px;color:var(--ink-2);}
.countdown__seg{
  display:inline-flex;align-items:baseline;gap:2px;
  background:var(--orange-soft);
  color:var(--orange-deep);
  border-radius:8px;
  padding:2px 8px;
  font-size:13px;
  font-variant-numeric:tabular-nums;
}
.countdown__seg b{font-size:15px;font-weight:700;font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;}
.countdown__seg i{font-style:normal;font-size:11px;opacity:.85;}
.topbar__status{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:999px;
  padding:2px 12px;
  font-size:12px;
  color:var(--green);
  font-weight:600;
}
.topbar__hint{margin-left:auto;font-size:13px;color:var(--ink-3);}
.topbar__close{
  background:transparent;border:0;color:var(--ink-3);
  font-size:14px;line-height:1;cursor:pointer;padding:6px 2px;
}
.topbar__close:hover{color:var(--blue);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--white);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(16,40,80,.45);}
.header__inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--blue);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;letter-spacing:.5px;
  box-shadow:0 6px 16px -8px rgba(31,99,214,.85);
}
.brand__text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.3px;}
.nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav__link{
  position:relative;
  padding:10px 14px;
  border-radius:999px;
  font-size:15px;
  color:var(--ink-2);
  font-weight:500;
  transition:color .2s ease,background .2s ease;
}
.nav__link:hover{color:var(--blue);background:var(--blue-soft);}
.nav__link.is-active{color:var(--blue);font-weight:600;background:var(--blue-soft);}
.nav__link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--blue);
}
.header__actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:999px;padding:4px 12px;
  font-size:12.5px;font-weight:600;line-height:1.4;
  background:var(--blue-soft);color:var(--blue);
}
.badge--live{background:var(--orange-soft);color:var(--orange-deep);}
.badge--live::before{
  content:"";width:7px;height:7px;border-radius:50%;
  background:var(--orange);display:inline-block;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--white);cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);}
.nav-toggle:hover{border-color:var(--blue);}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(320px,86vw);
  background:var(--white);z-index:90;
  transform:translateX(102%);
  transition:transform .28s ease;
  padding:84px 22px 28px;
  box-shadow:-18px 0 40px -24px rgba(16,40,80,.5);
  display:flex;flex-direction:column;gap:6px;
}
.drawer.is-open{transform:translateX(0);}
.drawer__nav{display:flex;flex-direction:column;}
.drawer__link{
  display:flex;align-items:center;height:48px;
  border-bottom:1px solid var(--line);
  font-size:16px;color:var(--ink-2);font-weight:500;
}
.drawer__link.is-active{color:var(--blue);font-weight:600;}
.drawer__cta{margin-top:22px;}
.drawer__mask{
  position:fixed;inset:0;background:rgba(15,39,69,.42);
  opacity:0;visibility:hidden;transition:opacity .25s ease;z-index:80;
}
.drawer__mask.is-open{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--blue);color:#fff;box-shadow:0 10px 22px -14px rgba(31,99,214,.9);}
.btn--primary:hover{background:var(--blue-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn--primary:active{transform:translateY(0);}
.btn--accent{background:var(--orange);color:#fff;box-shadow:0 10px 22px -14px rgba(255,122,69,.95);}
.btn--accent:hover{background:var(--orange-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn--accent:active{transform:translateY(0);}
.btn--outline{background:transparent;border-color:var(--blue);color:var(--blue);}
.btn--outline:hover{background:var(--blue-soft);color:var(--blue-dark);}
.btn--block{width:100%;}
.btn--sm{height:40px;padding:0 16px;font-size:14px;}

/* ---------- 分类页头 ---------- */
.page-hero{
  position:relative;
  background:var(--white);
  border-bottom:1px solid var(--line);
  padding:26px 0 52px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(to right, rgba(31,99,214,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31,99,214,.05) 1px, transparent 1px);
  background-size:46px 46px;
  opacity:.7;
  pointer-events:none;
}
.page-hero__inner{position:relative;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);
  margin-bottom:22px;
}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--blue);}
.crumb__sep{color:var(--ink-3);}
.crumb__current{color:var(--ink);font-weight:600;}
.page-hero__tag{margin-bottom:14px;display:flex;flex-wrap:wrap;gap:8px;}
.page-hero h1{max-width:820px;}
.page-hero__lead{
  max-width:760px;margin-top:16px;
  font-size:17px;line-height:1.85;color:var(--ink-2);
}
.page-hero__meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;
}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--bg);border:1px solid var(--line);
  border-radius:999px;padding:6px 14px;
  font-size:13px;color:var(--ink-2);
}
.chip i{color:var(--blue);font-size:12px;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--white{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section__head{max-width:720px;margin-bottom:40px;}
.section__eyebrow{
  display:inline-block;margin-bottom:12px;
  font-size:12.5px;font-weight:700;letter-spacing:1.4px;
  color:var(--blue);text-transform:uppercase;
}
.section__lead{margin-top:14px;color:var(--ink-2);font-size:16.5px;}
.section__head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;flex-wrap:wrap;
}

/* ---------- 编号问题清单 ---------- */
.numlist{display:flex;flex-direction:column;gap:14px;}
.num-item{
  display:flex;gap:24px;align-items:flex-start;
  background:var(--white);
  border:1px solid #E6EDF7;
  border-radius:var(--r-card);
  padding:26px 28px;
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.num-item:hover{
  transform:translateY(-2px);
  border-color:rgba(31,99,214,.35);
  box-shadow:var(--shadow-hover);
}
.num-item__index{
  flex:0 0 auto;
  font-family:Inter,system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:30px;font-weight:700;line-height:1;
  color:var(--orange);
  min-width:56px;
  padding-top:4px;
}
.num-item__body{flex:1 1 auto;min-width:0;}
.num-item__body h3{margin-bottom:8px;}
.num-item__body p{color:var(--ink-2);font-size:16px;max-width:820px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:12px;font-size:14.5px;font-weight:600;color:var(--blue);
}
.link-arrow i{font-size:12px;transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- 资源速查 ---------- */
.res-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;}
.media-frame{
  position:relative;width:100%;
  border-radius:20px;overflow:hidden;
  background:var(--blue-soft);
  box-shadow:var(--shadow);
}
.media-frame--16-10{padding-top:62.5%;}
.media-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.res-list{display:flex;flex-direction:column;gap:12px;}
.res-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--white);border:1px solid #E6EDF7;
  border-radius:var(--r-card);padding:20px 22px;
  box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.res-item:hover{transform:translateY(-2px);border-color:rgba(31,99,214,.35);box-shadow:var(--shadow-hover);}
.res-item__icon{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  background:var(--blue-soft);color:var(--blue);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
}
.res-item h3{font-size:17px;margin-bottom:4px;}
.res-item p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}

/* ---------- 数据块 ---------- */
.stat-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
}
.stat{
  background:var(--white);border:1px solid #E6EDF7;border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--shadow);
}
.stat__num{
  font-family:Inter,system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:30px;font-weight:700;color:var(--orange);line-height:1.2;
}
.stat__num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--orange-deep);}
.stat__label{margin-top:6px;font-size:15px;font-weight:600;color:var(--ink);}
.stat__desc{margin-top:4px;font-size:13.5px;color:var(--ink-3);line-height:1.7;}

/* ---------- FAQ ---------- */
.qa-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.qa-item{
  background:var(--white);border:1px solid #E6EDF7;border-radius:var(--r-card);
  box-shadow:var(--shadow);overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.qa-item.is-open{background:var(--bg);border-color:var(--line);}
.qa-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:22px;font-size:16.5px;font-weight:600;color:var(--ink);
  line-height:1.5;
}
.qa-icon{
  flex:0 0 auto;position:relative;width:22px;height:22px;
  border:1.5px solid var(--blue);border-radius:50%;
  transition:transform .25s ease,background .25s ease;
}
.qa-icon::before,.qa-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--blue);transform:translate(-50%,-50%);
}
.qa-icon::before{width:10px;height:1.6px;}
.qa-icon::after{width:1.6px;height:10px;transition:opacity .2s ease;}
.qa-item.is-open .qa-icon{transform:rotate(45deg);background:var(--blue);}
.qa-item.is-open .qa-icon::before,.qa-item.is-open .qa-icon::after{background:#fff;}
.qa-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
}
.qa-a p{padding:0 22px 22px;font-size:15px;color:var(--ink-2);line-height:1.8;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--blue-soft);
  border-top:1px solid #D8E6FB;
  border-bottom:1px solid #D8E6FB;
  padding:76px 0;
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.cta-band h2{color:var(--ink);}
.cta-band p.cta__lead{margin-top:14px;color:var(--ink-2);font-size:16.5px;max-width:520px;}
.cta__guarantee{
  display:flex;flex-wrap:wrap;gap:16px;margin-top:24px;
  font-size:13.5px;color:var(--ink-2);
}
.cta__guarantee span{display:inline-flex;align-items:center;gap:7px;}
.cta__guarantee i{color:var(--green);font-size:12px;}
.form-card{
  background:var(--white);border:1px solid #E6EDF7;border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow);
}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:7px;font-weight:600;}
.form-row input{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  font-size:15px;color:var(--ink);background:var(--white);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-row input::placeholder{color:var(--ink-3);}
.form-row input:focus{
  outline:none;border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(31,99,214,.16);
}
.form-note{margin-top:12px;font-size:13px;color:var(--ink-3);line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);color:rgba(255,255,255,.78);padding:64px 0 26px;margin-top:0;}
.footer__grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;
}
.footer__brand .brand__text{color:#fff;}
.footer__brand .brand__mark{background:var(--orange);box-shadow:none;}
.footer__desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px;}
.footer__badge{
  display:inline-block;margin-top:16px;
  background:rgba(255,122,69,.16);
  color:#FFB79A;
  border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:600;
}
.footer__title{font-size:14px;font-weight:600;color:rgba(255,255,255,.55);margin-bottom:16px;letter-spacing:.6px;}
.footer__list{display:flex;flex-direction:column;gap:10px;}
.footer__list a,.footer__list span{font-size:14.5px;color:rgba(255,255,255,.78);transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer__list a:hover{color:var(--orange);transform:translateX(2px);}
.footer__bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav{display:none;}
  .nav-toggle{display:flex;}
  .header__actions .badge{display:none;}
  .res-grid{grid-template-columns:1fr;gap:32px;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .qa-list{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  body{font-size:16px;}
  .topbar__status,.topbar__hint{display:none;}
  .header__inner{min-height:64px;gap:12px;}
  .brand__text{font-size:16px;}
  .header__actions .btn{display:none;}
  .page-hero{padding:20px 0 40px;}
  .num-item{flex-direction:column;gap:12px;padding:22px;}
  .num-item__index{font-size:24px;min-width:auto;}
  .btn{width:100%;}
  .qa-q{font-size:16px;padding:18px;}
  .qa-a p{padding:0 18px 18px;}
  .section{padding:56px 0;}
  .section__head{margin-bottom:28px;}
  .footer__grid{grid-template-columns:1fr;}
  .footer__bottom{flex-direction:column;}
  .cta__guarantee{flex-direction:column;gap:10px;}
}
@media (max-width:520px){
  h1{font-size:27px;}
  .stat-grid{grid-template-columns:1fr;}
  .countdown__label{display:none;}
}

/* roulang page: category2 */
:root{
  --brand:#1F63D6;
  --brand-deep:#174FB0;
  --brand-soft:#E8F1FE;
  --accent:#FF7A45;
  --accent-deep:#E85F28;
  --accent-soft:#FFF1EA;
  --ink:#101C2E;
  --ink-2:#5B6B80;
  --ink-3:#8A97A8;
  --line:#E3EAF4;
  --line-soft:#E6EDF7;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --ok:#1FA37A;
  --warn:#FFB020;
  --footer:#0F2745;
  --r-card:16px;
  --r-img:12px;
  --r-hero:20px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,40,80,.06),0 10px 30px -14px rgba(16,40,80,.18);
  --sh-2:0 2px 4px rgba(16,40,80,.08),0 18px 40px -16px rgba(16,40,80,.26);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:#fff}
.section-head{max-width:760px;margin-bottom:40px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.section-label{display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:4px 12px;margin-bottom:14px}
.section-title{font-size:clamp(23px,3vw,32px);line-height:1.35;font-weight:600;letter-spacing:.2px}
.section-sub{margin-top:14px;color:var(--ink-2);font-size:16px}
.text-accent{color:var(--accent-deep)}

/* ============ 顶部状态条 ============ */
.statusbar{background:var(--footer);color:#fff;font-size:14px}
.statusbar__inner{display:flex;align-items:center;gap:22px;min-height:50px;padding:6px 0}
.statusbar__count{display:flex;align-items:center;gap:10px;color:#FFD9C9;flex-wrap:wrap}
.statusbar__label{font-size:13px;color:rgba(255,255,255,.72)}
.count-block{display:inline-flex;align-items:center;gap:4px}
.count-num{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:28px;padding:0 6px;border-radius:8px;
  background:var(--accent-soft);color:var(--accent-deep);
  font-weight:700;font-size:14px;font-variant-numeric:tabular-nums;
  font-family:Inter,system-ui,sans-serif;
}
.count-unit{font-size:12px;color:rgba(255,255,255,.6);margin-right:4px}
.statusbar__flag{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  border-radius:999px;padding:3px 12px;font-size:12px;color:#fff;
}
.statusbar__flag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ok)}
.statusbar__tip{margin-left:auto;color:rgba(255,255,255,.62);font-size:13px}
.statusbar__close{
  width:30px;height:30px;border-radius:8px;color:rgba(255,255,255,.7);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;line-height:1;
  transition:background-color .2s ease,color .2s ease;
}
.statusbar__close:hover{background:rgba(255,255,255,.14);color:#fff}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 8px 26px -14px rgba(16,40,80,.3)}
.header__inner{display:flex;align-items:center;gap:24px;min-height:74px}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand__mark{
  width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;letter-spacing:.5px;
  font-family:Inter,system-ui,sans-serif;
}
.brand__text{font-size:18px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav__link{
  position:relative;display:inline-flex;align-items:center;
  height:40px;padding:0 16px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .2s ease,background-color .2s ease;
}
.nav__link:hover{color:var(--brand);background:var(--brand-soft)}
.nav__link.is-active{color:var(--brand);background:var(--brand-soft);font-weight:600}
.nav__link.is-active::after{
  content:"";position:absolute;left:50%;bottom:-4px;transform:translateX(-50%);
  width:26px;height:3px;border-radius:3px;background:var(--brand);
}
.header__actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.header__badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;color:var(--accent-deep);background:var(--accent-soft);
  border-radius:999px;padding:4px 12px;
}
.header__badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);align-items:center;justify-content:center;
  transition:border-color .2s ease,background-color .2s ease;
}
.nav-toggle:hover{border-color:var(--brand);background:var(--brand-soft)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn--primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn--accent{background:var(--accent);color:#fff;box-shadow:var(--sh-1)}
.btn--accent:hover{background:var(--accent-deep);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn--accent:active{transform:translateY(0)}
.btn--ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn--ghost:hover{background:var(--brand-soft)}
.btn--onDark{border-color:rgba(255,255,255,.6);color:#fff;background:transparent}
.btn--onDark:hover{background:#fff;color:var(--brand-deep);border-color:#fff}
.btn--sm{height:40px;padding:0 16px;font-size:14px}
.btn--block{width:100%}
.btn[disabled]{opacity:.4;pointer-events:none}

/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;line-height:1.4;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;padding:4px 11px;
  transition:background-color .2s ease,color .2s ease;
}
.tag:hover{background:var(--brand);color:#fff}
.tag--accent{color:var(--accent-deep);background:var(--accent-soft)}
.tag--accent:hover{background:var(--accent);color:#fff}
.tag--muted{color:var(--ink-2);background:#EEF3FA}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* ============ 面包屑 ============ */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px}
.crumb__sep{opacity:.5}
.crumb--onDark{color:rgba(255,255,255,.78)}
.crumb--onDark a:hover{color:#fff}

/* ============ 主视觉 banner ============ */
.case-hero{
  position:relative;overflow:hidden;color:#fff;
  background-color:#174FB0;
  background-image:linear-gradient(180deg,rgba(31,99,214,.92),rgba(15,39,69,.9)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  padding:56px 0 64px;
}
.case-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;
}
.case-hero .container{position:relative;z-index:1}
.case-hero__title{
  font-size:clamp(30px,4.6vw,46px);line-height:1.25;font-weight:700;
  letter-spacing:.3px;margin:20px 0 0;max-width:820px;
}
.case-hero__lead{
  margin-top:18px;max-width:700px;font-size:16.5px;line-height:1.85;
  color:rgba(255,255,255,.86);
}
.case-hero__lead strong{color:#fff;font-weight:600}
.case-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.case-hero__stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:44px;
}
.hero-stat{
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);
  border-radius:14px;padding:16px 18px;
}
.hero-stat__num{
  font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:700;line-height:1.2;color:#fff;
}
.hero-stat__label{margin-top:4px;font-size:13.5px;color:rgba(255,255,255,.76)}

/* ============ 筛选标签 ============ */
.case-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.case-tab{
  height:40px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  font-size:14px;font-weight:500;
  transition:all .2s ease;
}
.case-tab:hover{border-color:var(--brand);color:var(--brand)}
.case-tab.is-active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.case-empty{
  display:none;text-align:center;padding:56px 20px;background:#fff;
  border:1px dashed var(--line);border-radius:var(--r-card);color:var(--ink-2);
}
.case-empty.is-visible{display:block}
.case-empty__mark{
  width:52px;height:52px;margin:0 auto 14px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:700;
}

/* ============ 媒体框 ============ */
.media-frame{position:relative;width:100%;padding-top:75%;overflow:hidden;background:var(--brand-soft)}
.media-frame img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.media-frame--wide{padding-top:56.25%}

/* ============ 案例网格 ============ */
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.case-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line-soft);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(31,99,214,.28)}
.case-card:hover .media-frame img{transform:scale(1.04)}
.case-card.is-hidden{display:none}
.case-card__flag{
  position:absolute;top:12px;left:12px;z-index:2;
  font-size:12px;color:#fff;background:rgba(23,79,176,.92);
  border-radius:999px;padding:4px 11px;
}
.case-card__body{display:flex;flex-direction:column;flex:1;padding:22px 24px 24px}
.case-card__title{font-size:20px;line-height:1.5;font-weight:600;margin-top:12px}
.case-card__text{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-2)}
.case-card__metrics{
  display:flex;flex-wrap:wrap;gap:22px;margin-top:auto;padding-top:18px;border-top:1px dashed var(--line);
}
.metric__num{
  font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:700;line-height:1.2;color:var(--accent-deep);
}
.metric__label{font-size:13px;color:var(--ink-3);margin-top:2px}

/* ============ 场景差异编号清单 ============ */
.scene-list{display:flex;flex-direction:column;gap:16px}
.scene-item{
  display:grid;grid-template-columns:76px 1fr auto;gap:22px;align-items:center;
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);
  padding:24px 28px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.scene-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(31,99,214,.28)}
.scene-item__num{
  width:56px;height:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-soft);color:var(--accent-deep);
  font-family:Inter,system-ui,sans-serif;font-size:17px;font-weight:700;font-variant-numeric:tabular-nums;
}
.scene-item__title{font-size:18px;font-weight:600}
.scene-item__text{margin-top:8px;font-size:15px;color:var(--ink-2)}
.scene-item__meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.scene-item__link{
  font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap;
  display:inline-flex;align-items:center;gap:6px;
}
.scene-item__link::after{content:"→";transition:transform .2s ease}
.scene-item:hover .scene-item__link::after{transform:translateX(3px)}

/* ============ 流程时间线 ============ */
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.timeline::before{
  content:"";position:absolute;left:0;right:0;top:26px;height:1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 16px);
}
.tl-step{position:relative;background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);padding:26px 22px 24px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease}
.tl-step:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.tl-step__dot{
  position:relative;z-index:1;width:52px;height:52px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
  background:var(--brand);color:#fff;font-family:Inter,system-ui,sans-serif;
  font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px #fff;
}
.tl-step:nth-child(2) .tl-step__dot{background:var(--brand-deep)}
.tl-step:nth-child(3) .tl-step__dot{background:var(--accent)}
.tl-step:nth-child(4) .tl-step__dot{background:var(--accent-deep)}
.tl-step__title{font-size:17px;font-weight:600}
.tl-step__text{margin-top:8px;font-size:14.5px;color:var(--ink-2);line-height:1.8}
.tl-step__time{
  display:inline-block;margin-top:14px;font-size:12.5px;
  color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:3px 10px;
}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .2s ease,background-color .2s ease;
}
.faq-item.is-open{border-color:var(--brand);background:var(--bg)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:14px;text-align:left;
  padding:20px 22px;font-size:16px;font-weight:600;line-height:1.6;
}
.faq-q__icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:16px;font-weight:700;line-height:1;
  transition:transform .25s ease,background-color .25s ease,color .25s ease;
}
.faq-item.is-open .faq-q__icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a__inner{padding:0 22px 22px 62px;color:var(--ink-2);font-size:15px;line-height:1.85}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--brand-soft);border-radius:var(--r-hero);
  padding:48px;display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(31,99,214,.06) 1px,transparent 1px);
  background-size:20px 20px;
}
.cta-band > *{position:relative;z-index:1}
.cta-band__title{font-size:clamp(22px,2.6vw,30px);font-weight:600;line-height:1.4}
.cta-band__text{margin-top:14px;color:var(--ink-2);font-size:15.5px}
.cta-band__notes{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;font-size:13.5px;color:var(--ink-2)}
.cta-band__notes span{display:inline-flex;align-items:center;gap:6px}
.cta-band__notes span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ok)}
.form-card{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
}
.field{margin-bottom:16px}
.field__label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px}
.field__input{
  width:100%;height:48px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;padding:0 14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field__input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,99,214,.14)}
.field__input::placeholder{color:var(--ink-3)}
.field__hint{margin-top:10px;font-size:12.5px;color:var(--ink-3);text-align:center}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:rgba(255,255,255,.8);margin-top:0}
.footer__grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
  padding-top:64px;padding-bottom:44px;
}
.footer__brand .brand__mark{background:var(--brand)}
.footer__brand .brand__text{color:#fff}
.footer__desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:320px}
.footer__badge{
  display:inline-block;margin-top:18px;font-size:12.5px;
  color:#FFD9C9;background:rgba(255,122,69,.16);
  border:1px solid rgba(255,122,69,.34);border-radius:999px;padding:4px 12px;
}
.footer__title{font-size:14px;font-weight:600;color:rgba(255,255,255,.85);margin-bottom:18px}
.footer__list li{margin-bottom:12px;font-size:14px;color:rgba(255,255,255,.72)}
.footer__list a{display:inline-block;transition:transform .2s ease,color .2s ease}
.footer__list a:hover{color:var(--accent);transform:translateX(2px)}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding-top:22px;padding-bottom:30px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  transform:translateY(-100%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:20px 20px 28px;overflow-y:auto;
}
.drawer.is-open{transform:translateY(0)}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer__close{
  width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--ink-2);
}
.drawer__close:hover{border-color:var(--brand);color:var(--brand)}
.drawer__nav{display:flex;flex-direction:column}
.drawer__link{
  height:48px;display:flex;align-items:center;justify-content:space-between;
  font-size:16px;color:var(--ink);border-bottom:1px solid var(--line-soft);
}
.drawer__link:hover{color:var(--brand)}
.drawer__link.is-active{color:var(--brand);font-weight:600}
.drawer__cta{margin-top:24px}
body.is-locked{overflow:hidden}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav{display:none}
  .nav-toggle{display:inline-flex}
  .header__badge{display:none}
  .section{padding:76px 0}
  .section--tight{padding:60px 0}
  .case-hero{padding:44px 0 52px}
  .case-grid{grid-template-columns:1fr;gap:22px}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline::before{display:none}
  .faq-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:36px 28px;gap:30px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:30px;padding-top:52px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 16px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .statusbar__tip{display:none}
  .statusbar__flag{display:none}
  .statusbar__inner{gap:12px}
  .header__inner{min-height:66px;gap:12px}
  .header__actions .btn{display:none}
  .brand__text{font-size:16px}
  .case-hero__stats{grid-template-columns:1fr;gap:12px;margin-top:32px}
  .case-hero__actions .btn{width:100%}
  .scene-item{grid-template-columns:1fr;gap:14px;padding:22px}
  .scene-item__num{width:46px;height:46px;font-size:15px}
  .timeline{grid-template-columns:1fr}
  .case-card__body{padding:20px}
  .faq-a__inner{padding:0 20px 20px 20px}
  .cta-band{padding:30px 20px;border-radius:16px}
  .form-card{padding:20px}
  .footer__grid{grid-template-columns:1fr;gap:26px}
  .footer__bottom{flex-direction:column}
}
@media (max-width:520px){
  .case-hero__title{font-size:28px}
  .section-title{font-size:23px}
  .case-tab{flex:1 1 auto;text-align:center}
}