/* roulang page: index */
:root{
  --ink-900:#0B1214;
  --ink-700:#243035;
  --steel-500:#6B7C82;
  --ice-050:#F2F7F8;
  --ice-100:#E3EDEF;
  --teal-600:#0E7C86;
  --teal-700:#0A5E66;
  --teal-050:#E6F2F3;
  --spark-500:#E2542A;
  --spark-600:#C7451F;
  --line:#D5E0E2;
  --ok:#1F8A5F;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(11,18,20,.05),0 10px 26px -14px rgba(11,18,20,.20);
  --shadow-2:0 2px 6px rgba(11,18,20,.08),0 18px 40px -18px rgba(11,18,20,.28);
  --container:1200px;
  --gap:24px;
  --section-y:88px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;line-height:1.75;
  color:var(--ink-700);
  background:var(--ice-050);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--teal-600);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease;}
a:hover{color:var(--teal-700);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:.2px;}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25;}
h2{font-size:clamp(22px,3vw,30px);line-height:1.35;}
h3{font-size:19px;line-height:1.5;font-weight:600;}
p{margin:0;}
button{font:inherit;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--teal-600);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--section-y) 0;}
.section--ice{background:var(--ice-100);}
.section--white{background:#fff;}
.section__head{max-width:760px;margin-bottom:40px;}
.section__head h2{margin-bottom:12px;}
.section__head p{font-size:16px;color:var(--steel-500);}
.section__head--row{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--teal-600);white-space:nowrap;position:relative;}
.link-arrow::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:2px;background:var(--teal-600);transition:width .16s ease;}
.link-arrow:hover::after{width:100%;}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;box-shadow:0 1px 0 var(--line);}
.brandbar{border-bottom:1px solid var(--line);background:#fff;}
.brandbar__inner{display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);font-weight:700;font-size:19px;letter-spacing:.4px;}
.logo:hover{color:var(--ink-900);}
.logo__mark{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:var(--teal-050);color:var(--teal-600);flex:none;}
.brandbar__tools{display:flex;align-items:center;gap:16px;}
.search{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:999px;padding:6px 14px;background:var(--ice-050);transition:border-color .18s ease,box-shadow .18s ease;}
.search:focus-within{border-color:var(--teal-600);box-shadow:0 0 0 3px rgba(14,124,134,.12);background:#fff;}
.search input{border:0;background:transparent;outline:none;width:148px;font-size:14px;}
.search svg{color:var(--steel-500);flex:none;}
.hotline{font-size:14px;color:var(--steel-500);white-space:nowrap;}
.hotline b{color:var(--ink-700);font-weight:600;}
.hamburger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center;color:var(--ink-700);}
.hamburger:hover{background:var(--ice-050);}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;line-height:1.4;transition:all .18s ease;cursor:pointer;}
.btn-spark{background:var(--spark-500);color:#fff;}
.btn-spark:hover,.btn-spark:focus{background:var(--spark-600);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(226,84,42,.9);}
.btn-ghost{background:transparent;border-color:var(--teal-600);color:var(--teal-600);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--teal-050);color:var(--teal-700);border-color:var(--teal-700);}
.btn-sm{padding:8px 16px;font-size:14px;}

.channelbar{background:var(--ice-050);border-bottom:1px solid var(--line);}
.channelbar__inner{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none;}
.channelbar__inner::-webkit-scrollbar{display:none;}
.channel{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;font-size:15px;color:var(--ink-700);white-space:nowrap;transition:.18s ease;}
.channel:hover{background:#fff;color:var(--teal-700);}
.channel.is-active{background:var(--teal-050);color:var(--teal-600);font-weight:600;box-shadow:inset 0 -2px 0 var(--teal-600);}

.drawer{position:fixed;inset:0;z-index:2000;display:none;}
.drawer.is-open{display:block;}
.drawer__mask{position:absolute;inset:0;background:rgba(11,18,20,.45);}
.drawer__panel{position:absolute;top:0;right:0;width:min(330px,88vw);height:100%;background:#fff;padding:22px 20px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;box-shadow:-18px 0 40px -20px rgba(11,18,20,.5);}
.drawer__title{font-size:13px;letter-spacing:1px;color:var(--steel-500);margin:6px 0 10px;}
.drawer__link{display:block;padding:12px 14px;border-radius:10px;color:var(--ink-700);font-size:16px;}
.drawer__link:hover{background:var(--ice-050);color:var(--teal-700);}
.drawer__link.is-active{background:var(--teal-050);color:var(--teal-600);font-weight:600;}
.drawer__foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);}

/* ============ hero ============ */
.hero{position:relative;background:#fff;border-bottom:1px solid var(--line);overflow:hidden;}
.hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(-24deg,rgba(14,124,134,.055) 0 1px,transparent 1px 22px);pointer-events:none;}
.hero__inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding-top:72px;padding-bottom:72px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:1px;color:var(--teal-700);background:var(--teal-050);border-radius:999px;padding:6px 14px;margin-bottom:18px;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--spark-500);}
.hero h1{margin-bottom:18px;}
.hero__lead{font-size:17px;color:var(--steel-500);max-width:520px;margin-bottom:28px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.trust{display:flex;flex-wrap:wrap;gap:10px 22px;padding-top:22px;border-top:1px dashed var(--line);}
.trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--steel-500);}
.trust li::before{content:"";width:16px;height:16px;border-radius:50%;background:var(--teal-050);box-shadow:inset 0 0 0 1px var(--teal-600);flex:none;}
.hero__figure{position:relative;}
.hero__figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;box-shadow:var(--shadow-2);}
.rink-ring{position:absolute;right:-42px;bottom:-42px;width:190px;height:190px;border:1px dashed rgba(14,124,134,.35);border-radius:50%;pointer-events:none;}
.rink-ring::after{content:"";position:absolute;inset:34px;border:1px dashed rgba(14,124,134,.22);border-radius:50%;}

/* ============ services ============ */
.service-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:var(--gap);align-items:stretch;}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);transition:box-shadow .18s ease,transform .18s ease;}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.service-main{display:flex;flex-direction:column;overflow:hidden;}
.service-main .card__media{overflow:hidden;}
.service-main .card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.card__body{padding:26px 28px 30px;}
.badge-teal{display:inline-block;background:var(--teal-050);color:var(--teal-700);font-size:13px;border-radius:999px;padding:4px 12px;margin-bottom:12px;}
.card__body h3{margin-bottom:12px;font-size:21px;}
.card__body p{font-size:15px;color:var(--steel-500);margin-bottom:16px;}
.dot-list li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-700);margin-bottom:8px;}
.dot-list li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--teal-600);}
.service-side{display:flex;flex-direction:column;gap:var(--gap);}
.side-item{display:flex;gap:16px;align-items:flex-start;padding:20px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);flex:1;transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;}
.side-item:hover{border-color:var(--teal-600);box-shadow:var(--shadow-2);transform:translateY(-3px);}
.side-item__icon{width:42px;height:42px;border-radius:12px;background:var(--teal-050);color:var(--teal-600);display:grid;place-items:center;flex:none;}
.side-item h3{font-size:17px;margin-bottom:6px;color:var(--ink-900);}
.side-item p{font-size:14px;color:var(--steel-500);line-height:1.65;}

/* ============ stats ============ */
.stats{position:relative;background:var(--ink-900);overflow:hidden;}
.stats::after{content:"";position:absolute;right:-70px;top:-60px;width:220px;height:220px;border:1px dashed rgba(230,242,243,.18);border-radius:50%;}
.stats::before{content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:repeating-linear-gradient(90deg,rgba(230,242,243,.16) 0 8px,transparent 8px 20px);}
.stats__inner{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);padding:56px 24px;}
.stat{text-align:left;}
.stat__num{display:block;font-size:clamp(30px,4vw,46px);font-weight:700;color:var(--teal-050);line-height:1.1;letter-spacing:.5px;}
.stat:nth-child(2) .stat__num{color:var(--spark-500);}
.stat__label{display:block;margin-top:10px;font-size:13px;color:rgba(230,242,243,.62);}

/* ============ cases ============ */
.case-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:var(--gap);}
.case-col{display:flex;flex-direction:column;gap:var(--gap);}
.case{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;transition:box-shadow .18s ease,transform .18s ease;}
.case:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.case__media{overflow:hidden;}
.case__media img{width:100%;object-fit:cover;}
.case--big .case__media img{aspect-ratio:16/11;}
.case--small{flex-direction:row;align-items:stretch;}
.case--small .case__media{width:38%;flex:none;}
.case--small .case__media img{height:100%;min-height:150px;object-fit:cover;}
.case__body{padding:22px 24px 24px;}
.case__body h3{margin-bottom:8px;font-size:18px;}
.case__body p{font-size:14px;color:var(--steel-500);}
.case__meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;font-size:13px;color:var(--steel-500);}
.chip{display:inline-flex;align-items:center;gap:6px;background:var(--ice-100);color:var(--ink-700);border-radius:999px;padding:3px 11px;font-size:13px;}

/* ============ steps ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);position:relative;}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 24px 28px;box-shadow:var(--shadow-1);transition:box-shadow .18s ease,transform .18s ease;}
.step:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.step__no{display:block;font-size:26px;font-weight:700;color:var(--teal-050);-webkit-text-stroke:1px var(--teal-600);letter-spacing:1px;margin-bottom:12px;}
.step h3{margin-bottom:8px;font-size:17px;}
.step p{font-size:14px;color:var(--steel-500);}
.step:not(:last-child)::after{content:"";position:absolute;right:-14px;top:44px;width:14px;border-top:1px dashed var(--teal-600);opacity:.5;}

/* ============ posts ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;}
.post-card:hover{border-color:var(--teal-600);box-shadow:var(--shadow-2);transform:translateY(-3px);}
.post-card__media{overflow:hidden;}
.post-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-card__media img{transform:scale(1.04);}
.post-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card__body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--ink-900);}
.post-card__body .excerpt{font-size:14px;color:var(--steel-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card__foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--steel-500);}
.post-card__foot svg{color:var(--teal-600);}
.empty-state{grid-column:1 / -1;text-align:center;padding:56px 20px;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);color:var(--steel-500);font-size:15px;}

/* ============ faq ============ */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);position:relative;}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 8px 22px 20px;font-size:17px;font-weight:600;color:var(--ink-900);transition:color .18s ease;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"";width:14px;height:14px;flex:none;background:
  linear-gradient(var(--teal-600),var(--teal-600)) center/14px 1.6px no-repeat,
  linear-gradient(var(--teal-600),var(--teal-600)) center/1.6px 14px no-repeat;
  transition:transform .22s ease;}
.faq details[open] summary::after{transform:rotate(180deg);background:
  linear-gradient(var(--teal-600),var(--teal-600)) center/14px 1.6px no-repeat,
  linear-gradient(var(--teal-600),var(--teal-600)) center/1.6px 0 no-repeat;}
.faq summary:hover{color:var(--teal-700);}
.faq details::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;background:transparent;transition:background .2s ease;}
.faq details[open]::before{background:var(--teal-600);}
.faq__answer{padding:0 8px 24px 20px;font-size:15px;line-height:1.8;color:var(--steel-500);max-width:760px;}

/* ============ contact ============ */
.contact-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:start;}
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:26px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--ink-700);}
.field .req{color:var(--spark-500);margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;background:#fff;font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:120px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--teal-600);box-shadow:0 0 0 3px rgba(14,124,134,.14);}
.field input::placeholder,.field textarea::placeholder{color:#A7B6B9;}
.form__foot{grid-column:1 / -1;display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:4px;}
.form__note{font-size:13px;color:var(--steel-500);}
.contact-card{background:var(--ink-900);border-radius:var(--radius-card);padding:32px 30px;color:rgba(242,247,248,.78);position:relative;overflow:hidden;}
.contact-card::after{content:"";position:absolute;right:-56px;bottom:-56px;width:170px;height:170px;border:1px dashed rgba(230,242,243,.2);border-radius:50%;}
.contact-card h3{color:#fff;font-size:19px;margin-bottom:18px;}
.contact-card dl{margin:0;display:flex;flex-direction:column;gap:16px;}
.contact-card dt{font-size:13px;color:rgba(230,242,243,.55);margin-bottom:4px;}
.contact-card dd{margin:0;font-size:15px;color:#EAF3F4;}
.contact-card .tip{margin-top:24px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(230,242,243,.6);}

/* ============ footer ============ */
.site-footer{background:var(--ink-900);color:rgba(242,247,248,.7);padding-top:64px;}
.footer__top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer__brand .logo{color:#fff;margin-bottom:16px;}
.footer__brand .logo:hover{color:#fff;}
.footer__brand .logo__mark{background:rgba(230,242,243,.12);color:#7FD3DA;}
.footer__brand p{font-size:14px;line-height:1.8;max-width:320px;color:rgba(242,247,248,.62);}
.footer__col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer__col ul{display:flex;flex-direction:column;gap:10px;}
.footer__col a,.footer__col span{font-size:14px;color:rgba(242,247,248,.68);}
.footer__col a:hover{color:#EAF3F4;}
.footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(242,247,248,.5);}

/* ============ responsive ============ */
@media (max-width:1199px){
  :root{--section-y:72px;}
  .hero__inner{gap:40px;}
}
@media (max-width:991px){
  :root{--section-y:64px;}
  .brandbar__tools .search,.brandbar__tools .hotline{display:none;}
  .hero__inner{grid-template-columns:1fr;gap:36px;padding-top:56px;padding-bottom:56px;}
  .hero__lead{max-width:none;}
  .rink-ring{width:140px;height:140px;right:-24px;bottom:-24px;}
  .service-grid{grid-template-columns:1fr;}
  .stats__inner{grid-template-columns:repeat(2,1fr);gap:32px 24px;padding:48px 24px;}
  .case-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step:not(:last-child)::after{display:none;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .contact-grid{grid-template-columns:1fr;gap:36px;}
  .footer__top{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--section-y:52px;--gap:16px;}
  .container{padding:0 16px;}
  .brandbar__inner{min-height:58px;gap:12px;}
  .logo{font-size:17px;}
  .hamburger{display:inline-flex;}
  .brandbar__tools .btn-spark{display:none;}
  .channelbar__inner{height:48px;}
  .channel{height:32px;padding:0 13px;font-size:14px;}
  .hero__inner{padding-top:44px;padding-bottom:44px;}
  .hero__actions{gap:10px;}
  .hero__actions .btn{flex:1;min-width:136px;}
  .service-main .card__body{padding:22px 20px 24px;}
  .side-item{flex-direction:column;gap:12px;}
  .case--small{flex-direction:column;}
  .case--small .case__media{width:100%;}
  .case--small .case__media img{min-height:0;aspect-ratio:16/9;}
  .steps{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:1fr;}
  .form{grid-template-columns:1fr;}
  .section__head--row{flex-direction:column;align-items:flex-start;gap:12px;}
  .faq summary{font-size:16px;padding:18px 4px 18px 16px;}
  .faq__answer{padding:0 4px 20px 16px;}
  .footer__top{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer__bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  .stats__inner{gap:26px 16px;}
  .contact-card{padding:26px 22px;}
  .hero__figure img{border-radius:14px;}
}

/* roulang page: article */
:root{
  --ink-900:#0B1214;
  --ink-700:#243035;
  --steel-500:#6B7C82;
  --ice-050:#F2F7F8;
  --ice-100:#E3EDEF;
  --teal-600:#0E7C86;
  --teal-700:#0A5E66;
  --teal-050:#E6F2F3;
  --spark-500:#E2542A;
  --spark-600:#C7451F;
  --line:#D5E0E2;
  --ok:#1F8A5F;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(11,18,20,.05), 0 10px 26px -14px rgba(11,18,20,.20);
  --shadow-2:0 2px 5px rgba(11,18,20,.08), 0 20px 38px -18px rgba(11,18,20,.30);
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--ice-050);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--teal-600);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
a:hover{color:var(--teal-700)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--teal-600);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{list-style:none;padding:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部品牌行 ---------- */
.site-header{position:relative;z-index:60}
.header__brand{background:#fff;border-bottom:1px solid var(--line)}
.header__brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);font-size:19px;font-weight:700;letter-spacing:.02em;flex:0 0 auto}
.logo__mark{display:inline-flex;color:var(--teal-600)}
.logo:hover{color:var(--teal-700)}
.header__tools{display:flex;align-items:center;gap:16px}
.header__search{position:relative;display:flex;align-items:center}
.header__search input{
  width:216px;height:38px;padding:0 42px 0 16px;
  border:1px solid var(--line);border-radius:999px;
  background:var(--ice-050);color:var(--ink-700);font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.header__search input::placeholder{color:#93A3A8}
.header__search input:focus{outline:none;background:#fff;border-color:var(--teal-600);box-shadow:0 0 0 3px rgba(14,124,134,.14)}
.header__search button{
  position:absolute;right:6px;width:30px;height:30px;border:0;border-radius:50%;
  background:transparent;color:var(--steel-500);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;transition:.18s;
}
.header__search button:hover{color:var(--teal-700);background:var(--teal-050)}
.header__hotline{font-size:14px;color:var(--steel-500);white-space:nowrap}
.btn-spark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-btn);border:1px solid transparent;
  background:var(--spark-500);color:#fff;font-size:14px;font-weight:600;
  cursor:pointer;transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-spark:hover{background:var(--spark-600);color:#fff;box-shadow:0 10px 22px -12px rgba(226,84,42,.8)}
.btn-spark:active{transform:translateY(1px)}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-btn);
  border:1px solid var(--teal-600);background:transparent;color:var(--teal-700);
  font-size:14px;font-weight:600;cursor:pointer;transition:.18s;
}
.btn-line:hover{background:var(--teal-050);color:var(--teal-700)}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:#fff;color:var(--ink-700);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--teal-600);color:var(--teal-700)}

/* ---------- 频道行 ---------- */
.header__channels{background:var(--ice-050);border-bottom:1px solid var(--line)}
.header__channels-inner{display:flex;align-items:center}
.channel-nav{display:flex;align-items:center;gap:4px;height:52px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{
  position:relative;display:inline-flex;align-items:center;height:34px;padding:0 14px;
  border-radius:999px;font-size:15px;color:var(--ink-700);white-space:nowrap;transition:.18s;
}
.channel-nav a:hover{background:var(--teal-050);color:var(--teal-700)}
.channel-nav a.is-active{background:var(--teal-050);color:var(--teal-700);font-weight:600}
.channel-nav a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-9px;height:2px;
  border-radius:2px;background:var(--teal-600);
}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,88vw);z-index:120;
  background:#fff;box-shadow:-18px 0 40px -24px rgba(11,18,20,.5);
  transform:translateX(102%);transition:transform .26s ease;
  display:flex;flex-direction:column;padding:20px 22px 24px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer__close{
  width:38px;height:38px;border:1px solid var(--line);border-radius:10px;background:#fff;
  color:var(--ink-700);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
}
.drawer__close:hover{border-color:var(--teal-600);color:var(--teal-700)}
.drawer__nav{display:flex;flex-direction:column;gap:4px}
.drawer__nav a{padding:12px 14px;border-radius:10px;font-size:16px;color:var(--ink-700)}
.drawer__nav a:hover,.drawer__nav a.is-active{background:var(--teal-050);color:var(--teal-700)}
.drawer__foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line);margin-top:24px}
.drawer__foot p{font-size:13px;color:var(--steel-500);margin-bottom:14px;line-height:1.7}

/* ---------- 面包屑 ---------- */
.crumbs{padding:22px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--steel-500)}
.crumbs li{display:flex;align-items:center;gap:8px;min-width:0}
.crumbs li+li::before{content:"/";color:#B9C7CA}
.crumbs a{color:var(--steel-500)}
.crumbs a:hover{color:var(--teal-600)}
.crumbs .is-current{color:var(--ink-700);max-width:460px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.crumbs .is-plain{color:var(--steel-500)}

/* ---------- 文章主体 ---------- */
.page-main{padding-bottom:8px}
.post-wrap{padding-top:6px}
.post-head{margin-top:26px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--teal-050);color:var(--teal-700);font-size:13px;font-weight:600;letter-spacing:.01em;
}
.post-head h1{
  margin:16px 0 0;font-size:clamp(26px,3.4vw,38px);line-height:1.32;font-weight:700;color:var(--ink-900);
  letter-spacing:-.01em;
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px;font-size:14px;color:var(--steel-500)}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:#BECBCE}

.article-body{max-width:800px;padding-top:30px;font-size:17px;line-height:1.9;color:var(--ink-700)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;margin:40px 0 16px;padding-left:16px;
  font-size:clamp(20px,2.4vw,24px);line-height:1.45;font-weight:700;color:var(--ink-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:4px;border-radius:2px;background:var(--teal-600);
}
.article-body h3{margin:28px 0 12px;font-size:19px;line-height:1.5;font-weight:600;color:var(--ink-900)}
.article-body h4{margin:22px 0 10px;font-size:17px;font-weight:600;color:var(--ink-900)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:24px}
.article-body ul li{list-style:disc}
.article-body ol li{list-style:decimal}
.article-body li{margin-bottom:.5em}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--teal-050);
  border-left:4px solid var(--teal-600);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:20px auto;height:auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:22px 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--steel-500);text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;background:#fff}
.article-body th{background:var(--ice-100);color:var(--ink-900);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body a{color:var(--teal-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--teal-700)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.article-empty{
  max-width:800px;padding:56px 24px;margin-top:30px;text-align:center;
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;box-shadow:var(--shadow-1);
}
.article-empty svg{color:var(--steel-500);margin-bottom:14px}
.article-empty p{font-size:17px;color:var(--ink-700);margin-bottom:18px}

.post-tags{
  display:flex;flex-wrap:wrap;gap:10px;max-width:800px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line);
}
.post-tags span.tag-label{font-size:14px;color:var(--steel-500);align-self:center;margin-right:2px}
.post-tags a{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:13px;color:var(--steel-500);transition:.18s;
}
.post-tags a:hover{border-color:var(--teal-600);background:var(--teal-050);color:var(--teal-700)}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:800px;margin-top:26px}
.post-nav__item{
  display:block;padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;box-shadow:var(--shadow-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-nav__item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#C3D6D8}
.post-nav__label{display:block;font-size:13px;color:var(--steel-500)}
.post-nav__title{display:block;margin-top:6px;font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.55}
.post-nav__item--next{text-align:right}

/* ---------- 相关推荐 ---------- */
.rel{margin-top:56px;padding-top:36px;border-top:1px solid var(--line)}
.rel-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.rel-head h2{font-size:clamp(20px,2.4vw,24px);font-weight:700;color:var(--ink-900)}
.rel-head p{font-size:14px;color:var(--steel-500);margin-top:6px}
.link-more{font-size:14px;font-weight:600;color:var(--teal-600);border-bottom:1px solid transparent}
.link-more:hover{border-color:var(--teal-600)}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.post-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#C3D6D8}
.post-card__media{aspect-ratio:16/9;overflow:hidden;background:var(--ice-100)}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-card__media img{transform:scale(1.04)}
.post-card__body{display:flex;flex-direction:column;gap:10px;padding:16px 18px 18px}
.post-card__title{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__desc{font-size:14px;line-height:1.75;color:var(--steel-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px;font-size:13px;color:var(--steel-500)}
.post-card__foot b{color:var(--teal-700);font-weight:600}

/* ---------- 侧栏 ---------- */
.sidebar{padding-top:6px}
.sidebar__inner{position:sticky;top:24px;display:flex;flex-direction:column;gap:18px}
.side-card{border:1px solid var(--line);border-radius:var(--r-card);background:#fff;padding:18px 20px;box-shadow:var(--shadow-1)}
.side-card h3{font-size:16px;font-weight:700;color:var(--ink-900);margin-bottom:12px}
.side-list{display:flex;flex-direction:column;gap:2px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 10px;border-radius:8px;font-size:14px;color:var(--ink-700);
}
.side-list a:hover{background:var(--ice-050);color:var(--teal-700)}
.side-list a span.arrow{color:#B9C7CA;font-size:13px}
.side-card--ink{background:var(--ink-900);border-color:var(--ink-900);color:var(--ice-050)}
.side-card--ink h3{color:#fff}
.side-card--ink p{font-size:14px;line-height:1.8;color:#AFBEC2}
.side-card--ink .side-contact{display:flex;flex-direction:column;gap:8px;margin:14px 0 16px;font-size:14px;color:var(--ice-100)}
.side-card--ink .btn-spark{width:100%}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;margin-top:76px;background:var(--ink-900);color:var(--ice-050);overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:220px;height:220px;border-radius:50%;
  border:1px dashed rgba(255,255,255,.10);
}
.cta-band__inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:54px 0}
.cta-band h2{font-size:clamp(21px,2.6vw,28px);font-weight:700;line-height:1.4;color:#fff}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:#AFBEC2;max-width:640px}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:#9FB0B4;padding-top:56px}
.footer__top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px}
.footer__brand .logo{color:#fff;margin-bottom:14px}
.footer__brand .logo__mark{color:var(--teal-600)}
.footer__brand p{font-size:14px;line-height:1.85;color:#8FA1A5;max-width:340px}
.footer__col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer__col ul{display:flex;flex-direction:column;gap:10px}
.footer__col li{font-size:14px;color:#8FA1A5;line-height:1.7}
.footer__col a{color:#8FA1A5;font-size:14px}
.footer__col a:hover{color:var(--ice-100)}
.footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding-top:20px;padding-bottom:24px;
}
.footer__bottom p{font-size:13px;color:#7C8F93}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991.98px){
  .header__search input{width:180px}
  .header__hotline{display:none}
  .sidebar{padding-top:0}
  .sidebar__inner{position:static}
  .footer__top{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band__inner{flex-direction:column;align-items:flex-start;padding:46px 0}
}
@media (max-width:767.98px){
  .container{padding:0 16px}
  .header__search{display:none}
  .nav-toggle{display:inline-flex}
  .header__channels{display:none}
  .header__brand-inner{height:60px}
  .logo{font-size:17px}
  .post-head{margin-top:18px}
  .post-meta{gap:10px;font-size:13px}
  .article-body{font-size:16.5px;line-height:1.85;padding-top:24px}
  .article-body h2{margin-top:32px}
  .post-nav{grid-template-columns:1fr}
  .post-nav__item--next{text-align:left}
  .rel-grid{grid-template-columns:1fr}
  .rel{margin-top:44px;padding-top:28px}
  .cta-band{margin-top:56px}
  .cta-band__inner{padding:40px 0}
  .footer__top{grid-template-columns:1fr;gap:26px;padding-bottom:30px}
  .footer__bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .article-body table{font-size:14px}
  .article-body th,.article-body td{padding:10px 12px}
}
@media (max-width:519.98px){
  .post-head h1{font-size:24px}
  .btn-spark,.btn-line{height:38px;padding:0 15px;font-size:13.5px}
  .rel-head{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category1 */
:root{
  --ink-900:#0B1214;
  --ink-700:#243035;
  --steel-500:#6B7C82;
  --ice-050:#F2F7F8;
  --ice-100:#E3EDEF;
  --teal-600:#0E7C86;
  --teal-700:#0A5E66;
  --teal-050:#E6F2F3;
  --spark-500:#E2542A;
  --spark-600:#C7451F;
  --line:#D5E0E2;
  --ok:#1F8A5F;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(11,18,20,.05),0 10px 26px -14px rgba(11,18,20,.20);
  --shadow-2:0 2px 6px rgba(11,18,20,.07),0 20px 44px -20px rgba(11,18,20,.30);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--ice-050);
}
img{max-width:100%;display:block;}
a{color:var(--teal-600);text-decoration:none;transition:color .16s ease;}
a:hover{color:var(--teal-700);}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
figure{margin:0;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--teal-600);
  outline-offset:2px;
}
.container,.container-sm,.container-md,.container-lg,.container-xl,.container-xxl{
  max-width:1200px;
  padding-left:16px;
  padding-right:16px;
}
/* ---------- Header ---------- */
.site-header{position:relative;z-index:1040;background:#fff;}
.brandbar{border-bottom:1px solid var(--line);background:#fff;}
.brandbar__inner{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--ink-900);letter-spacing:.4px;}
.logo:hover{color:var(--teal-700);}
.logo__mark{
  width:34px;height:34px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--teal-050);color:var(--teal-600);
  border:1px solid rgba(14,124,134,.22);
  flex:0 0 auto;
}
.logo__text{white-space:nowrap;}
.brandbar__tools{display:flex;align-items:center;gap:14px;}
.search{display:flex;align-items:center;border:1px solid var(--line);border-radius:var(--radius-btn);overflow:hidden;background:var(--ice-050);transition:border-color .16s ease,box-shadow .16s ease;}
.search:focus-within{border-color:var(--teal-600);box-shadow:0 0 0 3px rgba(14,124,134,.12);background:#fff;}
.search input{
  border:0;background:transparent;outline:none;
  padding:9px 12px;font-size:14px;width:180px;color:var(--ink-700);
}
.search input::placeholder{color:var(--steel-500);}
.search button{
  border:0;background:transparent;color:var(--teal-600);
  padding:8px 12px;display:inline-flex;align-items:center;cursor:pointer;
}
.search button:hover{color:var(--teal-700);}
.hotline{font-size:14px;color:var(--steel-500);white-space:nowrap;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  padding:11px 22px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  line-height:1.4;
}
.btn-spark{background:var(--spark-500);color:#fff;border-color:var(--spark-500);}
.btn-spark:hover,.btn-spark:focus{background:var(--spark-600);border-color:var(--spark-600);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(226,84,42,.75);}
.btn-spark:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--teal-700);border-color:var(--teal-600);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--teal-050);color:var(--teal-700);border-color:var(--teal-700);}
.btn-sm{padding:8px 16px;font-size:14px;}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;color:var(--ink-900);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle:hover{background:var(--ice-100);}
.channelbar{
  background:var(--ice-050);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:1035;
}
.channelbar__inner{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none;}
.channelbar__inner::-webkit-scrollbar{display:none;}
.channels{display:flex;align-items:center;gap:4px;}
.channels a{
  display:inline-block;padding:8px 14px;border-radius:999px;
  font-size:15px;color:var(--ink-700);font-weight:500;white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.channels a:hover{background:var(--teal-050);color:var(--teal-700);}
.channels a.is-active{
  color:var(--teal-700);background:var(--teal-050);font-weight:600;
  border-bottom-color:var(--teal-600);
}
/* ---------- Drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:1080;display:none;
}
.drawer.is-open{display:block;}
.drawer__mask{position:absolute;inset:0;background:rgba(11,18,20,.55);}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(360px,88vw);
  background:#fff;display:flex;flex-direction:column;padding:20px;
  box-shadow:-18px 0 50px -22px rgba(11,18,20,.5);
  overflow-y:auto;
}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer__close{width:36px;height:36px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;color:var(--ink-900);font-size:20px;line-height:1;cursor:pointer;}
.drawer__close:hover{background:var(--ice-100);}
.drawer__search{display:flex;margin:18px 0 6px;border:1px solid var(--line);border-radius:var(--radius-btn);overflow:hidden;}
.drawer__search input{flex:1;border:0;outline:none;padding:11px 12px;font-size:15px;background:var(--ice-050);}
.drawer__search button{border:0;background:var(--teal-600);color:#fff;padding:0 16px;cursor:pointer;}
.drawer__nav{margin-top:14px;}
.drawer__nav a{
  display:block;padding:13px 12px;border-radius:var(--radius-btn);
  color:var(--ink-700);font-size:16px;font-weight:500;
}
.drawer__nav a:hover{background:var(--ice-100);color:var(--teal-700);}
.drawer__nav a.is-active{background:var(--teal-050);color:var(--teal-700);font-weight:600;}
.drawer__foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);font-size:14px;color:var(--steel-500);}
.drawer__foot .btn{width:100%;margin-bottom:14px;}
/* ---------- Hero ---------- */
.page-hero{padding:36px 0 64px;background:#fff;border-bottom:1px solid var(--line);}
.crumb{font-size:13px;color:var(--steel-500);margin-bottom:26px;display:flex;gap:8px;flex-wrap:wrap;align-items:center;}
.crumb a{color:var(--steel-500);}
.crumb a:hover{color:var(--teal-600);}
.crumb span.sep{color:var(--line);}
.crumb span.current{color:var(--ink-700);font-weight:600;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.6px;
  color:var(--teal-700);background:var(--teal-050);
  padding:6px 12px;border-radius:999px;margin-bottom:16px;
}
.page-hero h1{
  font-size:clamp(28px,4vw,42px);
  line-height:1.25;font-weight:700;margin-bottom:16px;
}
.lead-line{
  font-size:18px;font-weight:600;color:var(--ink-900);margin-bottom:10px;line-height:1.7;
}
.hero-desc{font-size:16px;color:var(--ink-700);max-width:56ch;margin-bottom:24px;}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px;}
.chips{display:flex;flex-wrap:wrap;gap:10px;}
.chips li{
  font-size:13px;color:var(--teal-700);background:var(--teal-050);
  border:1px solid rgba(14,124,134,.18);
  padding:6px 12px;border-radius:999px;display:inline-flex;align-items:center;gap:6px;
}
.chips li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal-600);}
.hero-figure{
  position:relative;height:280px;border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow-1);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure::after{
  content:"";position:absolute;right:-40px;bottom:-60px;
  width:200px;height:200px;border-radius:50%;
  border:1px dashed rgba(242,247,248,.55);
}
/* ---------- Anchor bar ---------- */
.anchorbar{background:#fff;border-bottom:1px solid var(--line);}
.anchorbar__inner{display:flex;align-items:center;gap:16px;height:58px;overflow-x:auto;scrollbar-width:none;}
.anchorbar__inner::-webkit-scrollbar{display:none;}
.anchorbar__label{font-size:13px;color:var(--steel-500);white-space:nowrap;letter-spacing:.5px;}
.anchorbar ul{display:flex;gap:6px;}
.anchorbar a{
  display:inline-block;padding:7px 14px;border-radius:999px;font-size:14px;
  color:var(--ink-700);white-space:nowrap;border:1px solid transparent;
}
.anchorbar a:hover{background:var(--ice-100);color:var(--teal-700);}
.anchorbar a.is-active{background:var(--teal-050);color:var(--teal-700);border-color:rgba(14,124,134,.22);font-weight:600;}
/* ---------- Sections ---------- */
.section{padding:88px 0;}
.section--white{background:#fff;}
.section--tight{padding-top:64px;}
.section--dark{background:var(--ink-900);color:var(--ice-100);}
.section--dark h2,.section--dark h3{color:#fff;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--teal-700);
  letter-spacing:.6px;margin-bottom:12px;
}
.section-head .kicker::before{content:"";width:16px;height:2px;background:var(--teal-600);display:block;}
.section-head h2{font-size:clamp(22px,3vw,30px);line-height:1.35;margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--ink-700);max-width:64ch;}
.section--dark .section-head p{color:rgba(242,247,248,.72);}
/* ---------- Service cards ---------- */
.svc-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.svc-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:rgba(14,124,134,.3);}
.svc-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ice-100);}
.svc-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.svc-card:hover .svc-card__media img{transform:scale(1.04);}
.svc-card__no{
  position:absolute;left:14px;top:14px;
  font-size:13px;font-weight:700;color:#fff;
  background:rgba(11,18,20,.72);border-radius:999px;padding:4px 12px;letter-spacing:.5px;
}
.svc-card__body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1;}
.svc-card__body h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:10px;}
.svc-card__body p{font-size:15px;color:var(--ink-700);flex:1;}
.svc-card__foot{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--steel-500);
}
.tag{
  display:inline-block;font-size:13px;font-weight:600;
  color:var(--teal-700);background:var(--teal-050);
  padding:4px 10px;border-radius:999px;
}
.arrow-link{color:var(--teal-600);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px;}
.arrow-link::after{content:"→";transition:transform .18s ease;}
.arrow-link:hover::after{transform:translateX(3px);}
/* ---------- Split block ---------- */
.split-figure{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-1);}
.split-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-1);}
.panel h3{font-size:18px;font-weight:600;margin-bottom:18px;}
.meter{margin-bottom:18px;}
.meter:last-child{margin-bottom:0;}
.meter__row{display:flex;justify-content:space-between;font-size:14px;margin-bottom:8px;gap:12px;}
.meter__row span:first-child{color:var(--ink-700);}
.meter__row span:last-child{color:var(--steel-500);font-variant-numeric:tabular-nums;white-space:nowrap;}
.meter__bar{height:8px;border-radius:999px;background:var(--ice-100);overflow:hidden;}
.meter__bar i{display:block;height:100%;border-radius:999px;background:var(--teal-600);}
.meter__bar i.is-warn{background:var(--spark-500);}
.note-list li{
  position:relative;padding-left:22px;margin-bottom:12px;font-size:15px;color:var(--ink-700);
}
.note-list li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;
  background:var(--teal-600);
}
/* ---------- Deliver list ---------- */
.deliver-list{border-top:1px solid var(--line);}
.deliver-list li{
  display:flex;gap:16px;align-items:flex-start;
  padding:16px 0;border-bottom:1px solid var(--line);
}
.deliver-list .no{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  background:var(--teal-050);color:var(--teal-700);
  font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.deliver-list .txt strong{display:block;font-size:16px;color:var(--ink-900);font-weight:600;margin-bottom:2px;}
.deliver-list .txt span{font-size:14px;color:var(--steel-500);}
/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.steps::before{
  content:"";position:absolute;left:22px;right:22px;top:22px;
  border-top:1px dashed var(--line);
}
.step{position:relative;padding-top:0;}
.step__dot{
  width:44px;height:44px;border-radius:50%;
  background:#fff;border:2px solid var(--teal-600);color:var(--teal-700);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
  position:relative;z-index:1;margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;color:var(--ink-700);}
.step .days{
  display:inline-block;margin-top:10px;font-size:13px;color:var(--spark-600);
  background:rgba(226,84,42,.08);border-radius:999px;padding:3px 10px;
}
/* ---------- Quote ---------- */
.quote-card{
  height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:18px;
  transition:box-shadow .18s ease,transform .18s ease;
}
.quote-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.quote-card p{font-size:16px;color:var(--ink-700);flex:1;}
.quote-card__meta{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--line);}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  background:var(--ice-100);color:var(--teal-700);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.quote-card__meta strong{display:block;font-size:14px;color:var(--ink-900);font-weight:600;}
.quote-card__meta span{font-size:13px;color:var(--steel-500);}
/* ---------- Data strip ---------- */
.datastrip{
  background:var(--ink-900);border-radius:var(--radius-card);
  padding:40px 32px;margin-top:56px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.datastrip .item{text-align:left;}
.datastrip .num{
  font-size:clamp(30px,4vw,46px);font-weight:700;line-height:1.1;
  color:var(--teal-050);font-variant-numeric:tabular-nums;
}
.datastrip .item:nth-child(2) .num{color:var(--spark-500);}
.datastrip .lbl{font-size:13px;color:rgba(242,247,248,.6);margin-top:8px;}
/* ---------- FAQ ---------- */
.faq .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.faq .accordion-item:first-child{border-top:1px solid var(--line);}
.faq .accordion-header{margin:0;}
.faq .accordion-button{
  position:relative;background:transparent;box-shadow:none;
  font-size:17px;font-weight:600;color:var(--ink-900);
  padding:20px 48px 20px 20px;line-height:1.6;
  transition:color .16s ease,background-color .16s ease;
}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:8px;border-radius:4px;
  background:var(--teal-600);opacity:0;transition:opacity .18s ease;
}
.faq .accordion-button:not(.collapsed)::before{opacity:1;}
.faq .accordion-button::after{
  background-image:linear-gradient(var(--teal-600),var(--teal-600)),linear-gradient(var(--teal-600),var(--teal-600));
  background-size:14px 2px,2px 14px;
  background-position:center,center;
  background-repeat:no-repeat;
  width:18px;height:18px;
  transition:transform .2s ease;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.faq .accordion-button:not(.collapsed){color:var(--teal-700);background:transparent;box-shadow:none;}
.faq .accordion-button:hover{background:var(--ice-050);}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq .accordion-button:focus-visible{outline:2px solid var(--teal-600);outline-offset:2px;}
.faq .accordion-body{padding:0 20px 24px 20px;font-size:15px;line-height:1.85;color:var(--ink-700);}
/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink-900);border-radius:16px;padding:56px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:220px;height:220px;border-radius:50%;
  border:1px dashed rgba(242,247,248,.18);
}
.cta-band__text{max-width:620px;position:relative;z-index:1;}
.cta-band h2{font-size:clamp(22px,3vw,30px);color:#fff;margin-bottom:12px;line-height:1.35;}
.cta-band p{color:rgba(242,247,248,.72);font-size:15px;}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}
.cta-band .btn-ghost{color:var(--ice-050);border-color:rgba(242,247,248,.45);}
.cta-band .btn-ghost:hover{background:rgba(242,247,248,.12);color:#fff;border-color:#fff;}
/* ---------- Footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(242,247,248,.7);padding-top:0;}
.footer__top{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:32px;
  padding-top:72px;padding-bottom:48px;
}
.footer__brand .logo{color:#fff;margin-bottom:16px;}
.footer__brand .logo__mark{background:rgba(14,124,134,.28);border-color:rgba(230,242,243,.2);color:var(--teal-050);}
.footer__brand .logo:hover{color:var(--teal-050);}
.footer__brand p{font-size:14px;line-height:1.85;max-width:38ch;color:rgba(242,247,248,.62);}
.footer__col h4{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px;}
.footer__col ul li{margin-bottom:10px;}
.footer__col a,.footer__col span{font-size:14px;color:rgba(242,247,248,.68);}
.footer__col a:hover{color:var(--ice-100);}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:22px;padding-bottom:26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer__bottom p{font-size:13px;color:rgba(242,247,248,.5);}
/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .search input{width:150px;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .page-hero{padding:28px 0 48px;}
  .hotline{display:none;}
  .search{display:none;}
  .nav-toggle{display:inline-flex;}
  .brandbar__tools .btn-spark{display:none;}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px;}
  .steps::before{display:none;}
  .datastrip{grid-template-columns:repeat(2,1fr);padding:32px 24px;}
  .footer__top{grid-template-columns:1fr 1fr;padding-top:56px;}
  .cta-band{padding:44px 32px;}
  .hero-figure{height:240px;margin-top:8px;}
}
@media (max-width:767px){
  .channelbar__inner{height:48px;}
  .channels a{padding:7px 12px;font-size:14px;}
  .anchorbar__inner{height:52px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:32px;}
  .page-hero h1{font-size:26px;}
  .lead-line{font-size:17px;}
  .cta-band{padding:36px 24px;border-radius:14px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1;}
}
@media (max-width:575px){
  .brandbar__inner{height:58px;}
  .logo{font-size:17px;}
  .logo__mark{width:30px;height:30px;}
  .steps{grid-template-columns:1fr;}
  .datastrip{grid-template-columns:repeat(2,1fr);gap:20px;padding:28px 20px;border-radius:12px;}
  .footer__top{grid-template-columns:1fr;gap:28px;}
  .footer__bottom{flex-direction:column;gap:8px;}
  .panel{padding:20px;}
  .quote-card{padding:20px;}
  .deliver-list li{gap:12px;}
}

/* roulang page: category2 */
:root{
  --ink-900:#0B1214;
  --ink-700:#243035;
  --steel-500:#6B7C82;
  --ice-050:#F2F7F8;
  --ice-100:#E3EDEF;
  --teal-600:#0E7C86;
  --teal-700:#0A5E66;
  --teal-050:#E6F2F3;
  --spark-500:#E2542A;
  --spark-600:#C7451F;
  --line:#D5E0E2;
  --ok:#1F8A5F;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(11,18,20,.05),0 10px 26px -14px rgba(11,18,20,.20);
  --shadow-2:0 2px 4px rgba(11,18,20,.06),0 18px 34px -16px rgba(11,18,20,.28);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--ice-050);
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--teal-600);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--teal-700)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:.2px}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--teal-600);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--white{background:#fff}
.section-head{margin-bottom:40px;max-width:760px}
.section-head h2{font-size:clamp(22px,3vw,30px);line-height:1.35;margin-bottom:12px}
.section-head p{color:var(--steel-500);margin:0}
.sec-label{display:inline-block;font-size:13px;letter-spacing:1.4px;color:var(--teal-700);background:var(--teal-050);border-radius:999px;padding:4px 14px;margin-bottom:14px}

/* ---------- Header ---------- */
.site-header{position:relative;z-index:60;background:#fff}
.brandbar{background:#fff;border-bottom:1px solid var(--line)}
.brandbar__inner{display:flex;align-items:center;gap:24px;min-height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);font-weight:700;font-size:19px}
.logo:hover{color:var(--ink-900)}
.logo__mark{display:inline-flex;color:var(--teal-600)}
.logo__text{white-space:nowrap}
.brandbar__tools{margin-left:auto;display:flex;align-items:center;gap:20px}
.search{display:flex;align-items:center;gap:8px;background:var(--ice-050);border:1px solid var(--line);border-radius:999px;padding:6px 14px;color:var(--steel-500)}
.search svg{flex:none}
.search input{border:0;background:transparent;outline:none;width:158px;font-size:14px;color:var(--ink-700);line-height:1.4}
.search input::placeholder{color:var(--steel-500)}
.hotline{font-size:14px;color:var(--steel-500);white-space:nowrap}
.nav-toggle{display:none;margin-left:auto;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-700);border-radius:2px}

.channelbar{background:var(--ice-050);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.channels{display:flex;gap:4px;list-style:none;overflow-x:auto;scrollbar-width:none}
.channels::-webkit-scrollbar{display:none}
.channels a{display:block;padding:0 18px;line-height:52px;font-size:15px;color:var(--ink-700);border-bottom:2px solid transparent;white-space:nowrap}
.channels a:hover{background:var(--teal-050);color:var(--teal-700)}
.channels a.is-active{color:var(--teal-600);border-bottom-color:var(--teal-600);background:var(--teal-050);font-weight:600}

.mobile-drawer{position:fixed;inset:0;background:#fff;z-index:120;transform:translateX(102%);transition:transform .28s ease;display:flex;flex-direction:column;padding:20px 22px 26px;overflow-y:auto}
.mobile-drawer.is-open{transform:translateX(0)}
.mobile-drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink-700);font-size:20px;line-height:1;cursor:pointer}
.mobile-drawer__nav{display:flex;flex-direction:column;gap:6px;padding:20px 0}
.mobile-drawer__nav a{display:block;padding:13px 14px;border-radius:10px;font-size:16px;color:var(--ink-700);border:1px solid transparent}
.mobile-drawer__nav a:hover{background:var(--ice-050)}
.mobile-drawer__nav a.is-active{background:var(--teal-050);color:var(--teal-700);border-color:rgba(14,124,134,.22);font-weight:600}
.mobile-drawer__foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line)}
.mobile-drawer__foot .btn{width:100%}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.btn-spark{background:var(--spark-500);color:#fff}
.btn-spark:hover{background:var(--spark-600);color:#fff;transform:translateY(-1px)}
.btn-spark:active{transform:translateY(0)}
.btn-line{border-color:var(--teal-600);color:var(--teal-600);background:transparent}
.btn-line:hover{background:var(--teal-050);color:var(--teal-700)}
.btn-sm{padding:8px 16px;font-size:14px}
.link-more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more span{position:relative;display:inline-block}
.link-more span::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--teal-600);transition:width .16s ease}
.link-more:hover span::after{width:100%}

/* ---------- Hero ---------- */
.page-hero{position:relative;background:#fff;padding:64px 0 60px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(115deg,rgba(14,124,134,.055) 0 1px,transparent 1px 14px);pointer-events:none}
.page-hero__grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:1.2px;color:var(--teal-700);background:var(--teal-050);border-radius:999px;padding:5px 14px;margin-bottom:18px}
.page-hero h1{font-size:clamp(28px,4vw,44px);line-height:1.25;margin-bottom:18px}
.lede{font-size:17px;color:var(--steel-500);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.trust{display:flex;flex-wrap:wrap;gap:10px}
.trust span{font-size:13px;color:var(--teal-700);background:var(--ice-100);border-radius:999px;padding:5px 13px}
.page-hero__media{position:relative;margin:0}
.page-hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;box-shadow:var(--shadow-1)}
.ring-deco{position:absolute;right:-46px;bottom:-46px;width:200px;height:200px;border:1px dashed rgba(14,124,134,.26);border-radius:50%;pointer-events:none}

/* ---------- Metrics ---------- */
.metrics{background:var(--ink-900);color:var(--ice-050);padding:56px 0}
.metrics__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.metric__num{font-size:clamp(30px,4vw,48px);font-weight:700;line-height:1.1;color:var(--teal-050)}
.metric__num em{font-style:normal;color:var(--spark-500)}
.metric__label{font-size:13px;color:rgba(242,247,248,.62);margin-top:10px;line-height:1.6}

/* ---------- Doc layout ---------- */
.layout-doc{display:grid;grid-template-columns:220px 1fr;gap:48px;align-items:start}
.doc-toc{position:sticky;top:76px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-1)}
.doc-toc__title{font-size:13px;letter-spacing:1px;color:var(--steel-500);margin:0 0 14px}
.doc-toc__list{list-style:none;display:flex;flex-direction:column;gap:4px}
.doc-toc__list a{display:block;font-size:14px;padding:7px 10px;border-radius:8px;color:var(--ink-700);border-left:2px solid transparent}
.doc-toc__list a:hover{background:var(--ice-050);color:var(--teal-700);border-left-color:var(--teal-600)}
.doc-toc__toggle{display:none}

.doc-body{min-width:0}
.doc-block{padding-bottom:52px;margin-bottom:52px;border-bottom:1px dashed var(--line);scroll-margin-top:88px}
.doc-block:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.doc-block__num{font-size:13px;letter-spacing:2px;color:var(--teal-600);font-weight:600;margin-bottom:8px;display:block}
.doc-block h2{font-size:clamp(22px,3vw,30px);line-height:1.35;margin-bottom:16px}
.doc-block__grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;margin-top:24px}
.doc-block__grid.is-flip .doc-media{order:-1}
.doc-media{margin:0}
.doc-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-1)}
.media-cap{font-size:13px;color:var(--steel-500);margin-top:10px}
.doc-lead{color:var(--ink-700);margin-bottom:18px}
.doc-sub{margin-top:22px}
.doc-sub h3{font-size:19px;line-height:1.5;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.doc-sub h3::before{content:"";width:4px;height:17px;border-radius:2px;background:var(--teal-600);flex:none}
.doc-sub p{font-size:15px;color:var(--steel-500);margin:0 0 8px}
.point-list{list-style:none;display:flex;flex-direction:column;gap:8px;margin-top:10px}
.point-list li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-700)}
.point-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;border-radius:2px;background:var(--teal-600)}
.note-box{background:var(--teal-050);border-left:4px solid var(--teal-600);border-radius:0 10px 10px 0;padding:16px 20px;font-size:15px;color:var(--teal-700);margin-top:20px}

/* ---------- Table ---------- */
.table-wrap{margin-top:32px}
.spec-table{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;font-size:15px}
.spec-table th{background:var(--ice-100);color:var(--ink-900);font-weight:600;text-align:left;padding:14px 20px;font-size:14px}
.spec-table td{padding:14px 20px;border-top:1px solid var(--line);color:var(--ink-700);vertical-align:top}
.spec-table tbody tr:hover{background:var(--ice-050)}
.spec-table td:first-child{font-weight:600;color:var(--ink-900);white-space:nowrap}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq.accordion .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;border-radius:0}
.faq.accordion .accordion-item:first-child{border-top:1px solid var(--line)}
.faq .accordion-button{background:transparent;border:0;border-left:8px solid transparent;border-radius:0;box-shadow:none;font-size:17px;font-weight:600;color:var(--ink-900);padding:20px 20px 20px 18px;line-height:1.5}
.faq .accordion-button:hover{background:var(--ice-050)}
.faq .accordion-button:not(.collapsed){background:var(--teal-050);color:var(--teal-700);border-left-color:var(--teal-600)}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--teal-600);outline-offset:-2px}
.faq .accordion-button::after{
  content:"";width:12px;height:12px;margin-left:auto;flex:none;
  background-image:none;border-right:2px solid var(--teal-600);border-bottom:2px solid var(--teal-600);
  transform:rotate(45deg);transition:transform .2s ease;position:relative;top:-2px;
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);top:2px}
.faq .accordion-body{font-size:15px;line-height:1.8;color:var(--steel-500);padding:4px 20px 22px 26px}

/* ---------- Cards ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card-item{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(14,124,134,.35)}
.card-item__cover{aspect-ratio:16/9;overflow:hidden;background:var(--ice-100)}
.card-item__cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card-item:hover .card-item__cover img{transform:scale(1.04)}
.card-item__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge-tag{display:inline-block;align-self:flex-start;font-size:13px;background:var(--teal-050);color:var(--teal-700);border-radius:999px;padding:3px 11px}
.card-item__title{font-size:18px;font-weight:600;line-height:1.5;color:var(--ink-900)}
.card-item:hover .card-item__title{color:var(--teal-700)}
.card-item__desc{font-size:14px;color:var(--steel-500);margin:0}
.card-item__foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--steel-500)}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink-900);border-radius:20px;padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:44px;color:rgba(242,247,248,.78);position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;left:-70px;bottom:-90px;width:220px;height:220px;border:1px dashed rgba(14,124,134,.35);border-radius:50%;pointer-events:none}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,30px);margin-bottom:14px;line-height:1.35}
.cta-band p{font-size:15px;color:rgba(242,247,248,.72)}
.cta-list{list-style:none;display:flex;flex-direction:column;gap:10px;margin-top:22px}
.cta-list li{position:relative;padding-left:20px;font-size:15px}
.cta-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:2px;border-radius:2px;background:var(--spark-500)}
.form-card{position:relative;z-index:1;background:#fff;border-radius:16px;padding:26px;box-shadow:var(--shadow-2)}
.form-card h3{font-size:18px;margin-bottom:16px;color:var(--ink-900)}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label{font-size:14px;color:var(--ink-700);font-weight:500}
.req{color:var(--spark-500)}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:var(--radius-btn);padding:12px 14px;background:#fff;color:var(--ink-700);outline:none;transition:border-color .18s ease,box-shadow .18s ease;font-size:15px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--teal-600);box-shadow:0 0 0 3px rgba(14,124,134,.15)}
.field textarea{min-height:88px;resize:vertical}
.form-hint{font-size:13px;color:var(--steel-500);margin:12px 0 0}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-900);color:rgba(242,247,248,.78);padding:64px 0 28px;margin-top:88px}
.footer__top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer__brand .logo{color:#fff;margin-bottom:16px}
.footer__brand .logo:hover{color:#fff}
.footer__brand p{font-size:14px;line-height:1.8;color:rgba(242,247,248,.66);margin:0;max-width:340px}
.footer__col h4{font-size:15px;color:#fff;margin:0 0 16px;font-weight:600}
.footer__col ul{list-style:none;display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer__col a{color:rgba(242,247,248,.78)}
.footer__col a:hover{color:var(--ice-100)}
.footer__col span{color:rgba(242,247,248,.66)}
.footer__bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;padding-top:24px;font-size:13px;color:rgba(242,247,248,.5)}
.footer__bottom p{margin:0}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .page-hero__grid{gap:40px}
  .layout-doc{grid-template-columns:200px 1fr;gap:36px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .brandbar__tools .search,.brandbar__tools .hotline{display:none}
  .nav-toggle{display:flex}
  .brandbar__tools{margin-left:0}
  .page-hero{padding:48px 0 44px}
  .page-hero__grid{grid-template-columns:1fr;gap:34px}
  .ring-deco{display:none}
  .metrics__grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .layout-doc{grid-template-columns:1fr;gap:28px}
  .doc-toc{position:static;padding:16px 18px}
  .doc-toc__toggle{display:flex;width:100%;align-items:center;justify-content:space-between;background:transparent;border:0;padding:0;font-size:15px;font-weight:600;color:var(--ink-900);cursor:pointer}
  .doc-toc__toggle svg{transition:transform .2s ease;color:var(--teal-600)}
  .doc-toc.is-open .doc-toc__toggle svg{transform:rotate(180deg)}
  .doc-toc__list{max-height:0;overflow:hidden;transition:max-height .25s ease;margin-top:0}
  .doc-toc.is-open .doc-toc__list{max-height:420px;margin-top:12px}
  .doc-toc__title{display:none}
  .doc-block__grid{grid-template-columns:1fr;gap:24px}
  .doc-block__grid.is-flip .doc-media{order:0}
  .rec-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:36px 28px;gap:28px}
  .footer__top{grid-template-columns:repeat(2,1fr);gap:30px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:52px 0}
  .section--tight{padding:44px 0}
  .logo{font-size:17px}
  .btn{padding:10px 18px;font-size:14px}
  .hero-actions .btn{flex:1 1 auto}
  .metrics{padding:44px 0}
  .metrics__grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .rec-grid{grid-template-columns:1fr}
  .doc-block{padding-bottom:40px;margin-bottom:40px}
  .spec-table,.spec-table tbody,.spec-table tr,.spec-table td{display:block;width:100%}
  .spec-table thead{display:none}
  .spec-table{border-radius:var(--radius-card)}
  .spec-table tr{border-top:1px solid var(--line);padding:10px 0}
  .spec-table tr:first-child{border-top:0}
  .spec-table td{border:0;padding:6px 18px}
  .spec-table td:first-child{white-space:normal;color:var(--teal-700)}
  .spec-table td::before{content:attr(data-label);display:block;font-size:12px;color:var(--steel-500);letter-spacing:.6px;margin-bottom:2px}
  .faq .accordion-button{font-size:16px;padding:16px 14px 16px 14px}
  .faq .accordion-body{padding:2px 16px 18px 22px}
  .cta-band{border-radius:16px;padding:28px 20px}
  .form-card{padding:20px}
  .footer__top{grid-template-columns:1fr;gap:26px;padding-bottom:28px}
  .site-footer{padding:48px 0 24px;margin-top:64px}
  .footer__bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .page-hero h1{font-size:26px}
  .lede{font-size:15px}
  .trust span{font-size:12px}
  .metric__num{font-size:30px}
}

/* roulang page: category3 */
:root{
  --ink-900:#0B1214;
  --ink-700:#243035;
  --steel-500:#6B7C82;
  --ice-050:#F2F7F8;
  --ice-100:#E3EDEF;
  --teal-600:#0E7C86;
  --teal-700:#0A5E66;
  --teal-050:#E6F2F3;
  --spark-500:#E2542A;
  --spark-600:#C7451F;
  --line:#D5E0E2;
  --ok:#1F8A5F;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(11,18,20,.05),0 10px 26px -14px rgba(11,18,20,.20);
  --shadow-2:0 2px 6px rgba(11,18,20,.07),0 18px 40px -18px rgba(11,18,20,.28);
  --maxw:1200px;
  --pad-sec:88px;
  --ease:180ms ease;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--ice-050);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--teal-600);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--teal-700)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.35}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--teal-600);outline-offset:2px;border-radius:4px}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;width:100%}

/* ---------- 顶部品牌行 ---------- */
.site-header{position:relative;z-index:60}
.topbar{background:#fff;border-bottom:1px solid var(--line)}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);font-weight:700;font-size:19px;letter-spacing:.2px}
.logo:hover{color:var(--teal-700)}
.logo__mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--teal-050);color:var(--teal-600);border:1px solid rgba(14,124,134,.22)}
.logo__text{white-space:nowrap}
.topbar__actions{display:flex;align-items:center;gap:18px}
.search-box{display:flex;align-items:center;gap:0;border:1px solid var(--line);border-radius:999px;background:var(--ice-050);padding:2px 4px 2px 14px;transition:border-color var(--ease),box-shadow var(--ease)}
.search-box:focus-within{border-color:var(--teal-600);box-shadow:0 0 0 3px rgba(14,124,134,.12)}
.search-box input{border:0;background:transparent;outline:none;font-size:14px;width:150px;color:var(--ink-700);padding:6px 0}
.search-box input::placeholder{color:var(--steel-500)}
.search-box button{border:0;background:transparent;color:var(--teal-600);display:inline-flex;align-items:center;padding:6px;border-radius:50%;cursor:pointer}
.search-box button:hover{background:var(--teal-050)}
.hotline{font-size:14px;color:var(--steel-500);white-space:nowrap}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:10px;color:var(--ink-900);align-items:center;justify-content:center;cursor:pointer}
.nav-toggle:hover{border-color:var(--teal-600);color:var(--teal-700)}

.btn-brand,.btn-outline,.btn-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-weight:600;font-size:15px;
  padding:11px 22px;line-height:1.2;cursor:pointer;border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-brand{background:var(--spark-500);color:#fff}
.btn-brand:hover{background:var(--spark-600);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px -14px rgba(226,84,42,.85)}
.btn-brand:active{transform:translateY(0)}
.btn-outline{background:#fff;border-color:var(--teal-600);color:var(--teal-700)}
.btn-outline:hover{background:var(--teal-050);color:var(--teal-700);transform:translateY(-2px)}
.btn-dark{background:var(--ink-900);color:var(--ice-050)}
.btn-dark:hover{background:#162024;color:#fff;transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px}

/* ---------- 频道行 ---------- */
.channelbar{background:var(--ice-050);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.channelbar__inner{display:flex;align-items:center;gap:10px;height:52px}
.channels{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;width:100%}
.channels::-webkit-scrollbar{display:none}
.channels a{
  display:inline-flex;align-items:center;height:34px;padding:0 15px;border-radius:999px;
  font-size:15px;color:var(--ink-700);white-space:nowrap;border-bottom:2px solid transparent;
  border-radius:0;padding:0 14px;height:52px;line-height:52px;transition:background var(--ease),color var(--ease)
}
.channels a:hover{background:var(--teal-050);color:var(--teal-700)}
.channels a.is-active{color:var(--teal-600);font-weight:600;border-bottom-color:var(--teal-600);background:var(--teal-050)}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;background:#fff;z-index:200;transform:translateX(100%);
  transition:transform 220ms ease;display:flex;flex-direction:column;padding:20px 20px 0;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer__close{width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;color:var(--ink-900)}
.drawer__nav{display:flex;flex-direction:column;padding:12px 0;overflow-y:auto}
.drawer__nav a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:17px;color:var(--ink-700)}
.drawer__nav a.is-active{color:var(--teal-600);font-weight:600}
.drawer__foot{margin-top:auto;padding:16px 0 24px;border-top:1px solid var(--line)}
.drawer__foot .btn-brand{width:100%}
.drawer__foot p{margin:12px 0 0;font-size:14px;color:var(--steel-500)}

/* ---------- Hero ---------- */
.cat-hero{background:#fff;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(14,124,134,.05) 0 1px,transparent 1px 22px);
  pointer-events:none;
}
.cat-hero__inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:56px 0 60px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--teal-700);background:var(--teal-050);border-radius:999px;padding:6px 14px;margin-bottom:18px}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--spark-500);display:inline-block}
.cat-hero h1{font-size:clamp(28px,4vw,44px);line-height:1.25;margin-bottom:16px}
.cat-hero__lead{font-size:17px;color:var(--steel-500);max-width:34em;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.hero-points span{
  font-size:13px;color:var(--ink-700);background:var(--ice-100);border-radius:999px;padding:7px 14px;
}
.cat-hero__media{position:relative}
.cat-hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;box-shadow:var(--shadow-2)}
.cat-hero__ring{
  position:absolute;width:200px;height:200px;border:1px dashed rgba(14,124,134,.35);border-radius:50%;
  right:-46px;bottom:-46px;pointer-events:none;
}
.cat-hero__badge{
  position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:14px 18px;box-shadow:var(--shadow-1);
}
.cat-hero__badge b{display:block;font-size:26px;color:var(--teal-700);line-height:1.1}
.cat-hero__badge span{font-size:13px;color:var(--steel-500)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--pad-sec) 0}
.section--white{background:#fff}
.section--ice{background:var(--ice-050)}
.section--dark{background:var(--ink-900);color:var(--ice-100)}
.section--dark h2,.section--dark h3{color:#fff}
.section-head{max-width:720px;margin-bottom:48px}
.section-head .kicker{font-size:13px;letter-spacing:.12em;color:var(--teal-600);text-transform:uppercase;font-weight:600;display:block;margin-bottom:12px}
.section-head h2{font-size:clamp(22px,3vw,30px);margin-bottom:14px}
.section-head p{color:var(--steel-500);margin:0}
.section--dark .section-head p{color:rgba(227,237,239,.72)}
.section-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none}
.section-head--split .link-more{font-weight:600;white-space:nowrap}

/* ---------- 现场保障要点 ---------- */
.assure-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.assure-card{
  grid-column:span 5;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px;box-shadow:var(--shadow-1);transition:box-shadow var(--ease),transform var(--ease)
}
.assure-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px)}
.assure-card h3{font-size:20px;margin-bottom:12px}
.assure-card p{font-size:15px;color:var(--steel-500);margin-bottom:18px}
.assure-list{display:grid;grid-template-columns:repeat(12,1fr);gap:16px;grid-column:span 7;align-content:start}
.assure-item{
  grid-column:span 6;background:#fff;border:1px solid var(--line);border-left:3px solid var(--teal-600);
  border-radius:12px;padding:20px 22px;box-shadow:var(--shadow-1);transition:box-shadow var(--ease),transform var(--ease)
}
.assure-item:hover{box-shadow:var(--shadow-2);transform:translateY(-3px)}
.assure-item h3{font-size:17px;margin-bottom:8px}
.assure-item p{font-size:14px;color:var(--steel-500);margin:0}
.assure-item:first-child{grid-column:span 12}

/* ---------- 时间轴 ---------- */
.timeline{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:20px;margin-top:8px}
.tl-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 20px 24px;box-shadow:var(--shadow-1);transition:box-shadow var(--ease),transform var(--ease)
}
.tl-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px)}
.tl-card__head{display:flex;align-items:center;gap:10px;margin-bottom:14px;position:relative}
.tl-card__num{
  width:38px;height:38px;flex:0 0 38px;border-radius:50%;display:grid;place-items:center;
  background:var(--teal-050);color:var(--teal-700);font-weight:700;font-size:14px;border:1px solid rgba(14,124,134,.28)
}
.tl-card__line{position:absolute;top:19px;left:52px;right:-21px;border-top:1px dashed var(--line);height:0}
.tl-card:last-child .tl-card__line{display:none}
.tl-card h3{font-size:16px;margin-bottom:8px}
.tl-card p{font-size:14px;color:var(--steel-500);margin:0 0 12px}
.tl-card__meta{font-size:13px;color:var(--teal-700);background:var(--teal-050);border-radius:8px;padding:7px 10px;display:inline-block}

/* ---------- 数据条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{border-left:1px solid rgba(227,237,239,.18);padding-left:22px}
.stat:first-child{border-left:0;padding-left:0}
.stat b{display:block;font-size:clamp(30px,4vw,48px);font-weight:700;color:var(--teal-050);line-height:1.1;letter-spacing:-.01em}
.stat .stat--accent{color:var(--spark-500)}
.stat span{display:block;font-size:13px;color:rgba(227,237,239,.68);margin-top:10px}

/* ---------- 现场资源 ---------- */
.res-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.res-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-2)}
.res-body h2{font-size:clamp(22px,3vw,30px);margin-bottom:16px}
.res-body > p{color:var(--steel-500);margin-bottom:24px}
.res-list{display:grid;gap:14px}
.res-list li{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px;display:flex;gap:14px;align-items:flex-start}
.res-list .ico{flex:0 0 30px;width:30px;height:30px;border-radius:8px;background:var(--teal-050);color:var(--teal-700);display:grid;place-items:center}
.res-list h3{font-size:16px;margin-bottom:4px}
.res-list p{font-size:14px;color:var(--steel-500);margin:0}

/* ---------- FAQ ---------- */
.faq{max-width:860px;--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-btn-bg:transparent;--bs-accordion-body-bg:transparent;--bs-accordion-border-radius:0;--bs-accordion-inner-border-radius:0;--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-btn-padding-x:0;--bs-accordion-body-padding-x:0}
.faq .accordion-item{background:transparent;border:0;border-top:1px solid var(--line);border-radius:0}
.faq .accordion-item:last-child{border-bottom:1px solid var(--line)}
.faq .accordion-button{
  position:relative;background:transparent;color:var(--ink-900);font-size:17px;font-weight:600;
  padding:22px 44px 22px 18px;box-shadow:none;border-radius:0
}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:8px;border-radius:4px;
  background:var(--teal-600);opacity:0;transition:opacity var(--ease)
}
.faq .accordion-button:not(.collapsed){color:var(--teal-700)}
.faq .accordion-button:not(.collapsed)::before{opacity:1}
.faq .accordion-button::after{
  content:"+";background-image:none !important;width:26px;height:26px;font-size:20px;line-height:1;
  color:var(--teal-600);display:grid;place-items:center;transform:none;transition:transform var(--ease),color var(--ease)
}
.faq .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg)}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq .accordion-body{padding:0 44px 24px 18px;font-size:15px;line-height:1.8;color:var(--steel-500)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--ink-900);border-radius:18px;overflow:hidden;
  padding:52px;display:grid;grid-template-columns:1.4fr .8fr;gap:36px;align-items:center;color:var(--ice-100)
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:220px;height:220px;border-radius:50%;
  border:1px dashed rgba(227,237,239,.22);pointer-events:none
}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,28px);margin-bottom:12px}
.cta-band p{color:rgba(227,237,239,.75);margin:0;font-size:15px}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(227,237,239,.78);padding-top:64px}
.footer__top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer__brand .logo{color:#fff;margin-bottom:16px}
.footer__brand .logo__mark{background:rgba(14,124,134,.25);border-color:rgba(227,237,239,.22);color:var(--teal-050)}
.footer__brand p{font-size:14px;line-height:1.8;color:rgba(227,237,239,.62);margin:0;max-width:34em}
.footer__col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer__col ul{display:grid;gap:10px}
.footer__col a,.footer__col span{font-size:14px;color:rgba(227,237,239,.72)}
.footer__col a:hover{color:var(--ice-100)}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.12);padding-top:22px;padding-bottom:26px
}
.footer__bottom p{margin:0;font-size:13px;color:rgba(227,237,239,.55)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--pad-sec:72px}
  .timeline{grid-template-columns:repeat(3,minmax(0,1fr))}
  .tl-card:nth-child(3) .tl-card__line{display:none}
}
@media (max-width:991.98px){
  :root{--pad-sec:64px}
  .topbar__actions .hotline{display:none}
  .nav-toggle{display:inline-flex}
  .topbar__actions .btn-brand{display:none}
  .search-box{display:none}
  .cat-hero__inner{grid-template-columns:1fr;gap:36px;padding:44px 0 48px}
  .cat-hero__ring{display:none}
  .assure-card{grid-column:span 12}
  .assure-list{grid-column:span 12}
  .res-grid{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:40px 32px}
  .cta-band__actions{justify-content:flex-start}
  .footer__top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  :root{--pad-sec:52px}
  .container{padding:0 16px}
  .timeline{grid-template-columns:1fr;gap:16px}
  .tl-card__line{display:none !important}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px 20px}
  .stat{border-left:0;padding-left:0}
  .assure-item{grid-column:span 12}
  .cat-hero__badge{left:12px;bottom:12px;padding:10px 14px}
  .cat-hero__badge b{font-size:22px}
  .footer__top{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;gap:8px}
  .section-head--split{flex-direction:column;align-items:flex-start;gap:12px}
  .faq .accordion-button{font-size:16px;padding-right:38px}
}
@media (max-width:519.98px){
  .hero-cta .btn-brand,.hero-cta .btn-outline{width:100%}
  .cta-band__actions .btn-brand,.cta-band__actions .btn-outline{width:100%}
}

/* roulang page: category4 */
:root{
  --ink-900:#0B1214;--ink-700:#243035;--steel-500:#6B7C82;
  --ice-050:#F2F7F8;--ice-100:#E3EDEF;
  --teal-600:#0E7C86;--teal-700:#0A5E66;--teal-050:#E6F2F3;
  --spark-500:#E2542A;--spark-600:#C7451F;
  --line:#D5E0E2;--ok:#1F8A5F;
  --r-card:14px;--r-img:12px;--r-btn:10px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(11,18,20,.05),0 10px 26px -14px rgba(11,18,20,.20);
  --sh-2:0 2px 4px rgba(11,18,20,.06),0 18px 34px -16px rgba(11,18,20,.26);
  --ease:180ms ease;
  --sec-y:88px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-body-font-family:var(--font);--bs-body-color:var(--ink-700);--bs-body-bg:var(--ice-050);
  --bs-link-color:var(--teal-600);--bs-link-hover-color:var(--teal-700);--bs-border-color:var(--line);
  --bs-accordion-btn-focus-box-shadow:none;--bs-accordion-border-width:0;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.75;color:var(--ink-700);
  background:var(--ice-050);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--teal-600);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--teal-700)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:.2px}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25}
h2{font-size:clamp(22px,3vw,30px);line-height:1.35}
h3{font-size:19px;line-height:1.5;font-weight:600}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--teal-600);outline-offset:2px;border-radius:4px}
.container{max-width:1200px!important;padding-left:24px;padding-right:24px;margin:0 auto;width:100%}
.section{padding:var(--sec-y) 0}
.section--tight{padding:64px 0}
.section--white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head .eyebrow{margin-bottom:14px}
.sec-head p{margin-top:14px;color:var(--steel-500);font-size:16px;max-width:70ch}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:1.6px;
  color:var(--teal-700);background:var(--teal-050);border-radius:var(--r-pill);padding:6px 14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal-600)}
.lead{font-size:17px;color:var(--steel-500)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;line-height:1.2;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);}
.btn:active{transform:translateY(1px)}
.btn-spark{background:var(--spark-500);color:#fff;box-shadow:0 8px 18px -10px rgba(226,84,42,.85)}
.btn-spark:hover,.btn-spark:focus-visible{background:var(--spark-600);color:#fff}
.btn-ghost{background:transparent;color:var(--teal-700);border-color:var(--teal-600)}
.btn-ghost:hover,.btn-ghost:focus-visible{background:var(--teal-050);color:var(--teal-700)}
.btn-ink{background:var(--ink-900);color:var(--ice-050)}
.btn-ink:hover,.btn-ink:focus-visible{background:#16221f;color:#fff}
.btn-sm{padding:9px 16px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;position:relative}
.link-arrow::after{content:"";display:block;height:1px;width:0;background:currentColor;position:absolute;left:0;bottom:-2px;transition:width 160ms ease}
.link-arrow:hover::after{width:100%}
.link-arrow svg{transition:transform var(--ease)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ============ 头部 ============ */
.site-header{position:relative;z-index:1030}
.brandbar{background:#fff;border-bottom:1px solid var(--line)}
.brandbar__inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);font-weight:700;font-size:19px}
.logo:hover{color:var(--ink-900)}
.logo__mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;
  background:var(--ink-900);color:var(--ice-050);flex:0 0 auto}
.logo__text{white-space:nowrap}
.brandbar__tools{display:flex;align-items:center;gap:18px}
.searchbox{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--ice-050);padding:7px 14px;transition:border-color var(--ease),box-shadow var(--ease)}
.searchbox:focus-within{border-color:var(--teal-600);box-shadow:0 0 0 3px rgba(14,124,134,.12)}
.searchbox input{border:0;background:transparent;outline:none;font-size:14px;width:150px;color:var(--ink-700)}
.searchbox input::placeholder{color:var(--steel-500)}
.searchbox button{border:0;background:transparent;color:var(--teal-600);display:inline-flex;padding:0;cursor:pointer}
.hotline{font-size:14px;color:var(--steel-500);white-space:nowrap}
.hotline b{color:var(--ink-900);font-weight:700}
.hamburger{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;
  align-items:center;justify-content:center;color:var(--ink-900);cursor:pointer}
.channelbar{background:var(--ice-050);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:1020}
.channelbar__inner{display:flex;align-items:center;height:52px;overflow-x:auto;scrollbar-width:none}
.channelbar__inner::-webkit-scrollbar{display:none}
.channels{display:flex;align-items:center;gap:6px;white-space:nowrap}
.channels a{display:inline-block;padding:8px 16px;border-radius:var(--r-pill);font-size:15px;color:var(--ink-700);
  border-bottom:2px solid transparent;transition:background var(--ease),color var(--ease)}
.channels a:hover{background:var(--teal-050);color:var(--teal-700)}
.channels a.is-active{color:var(--teal-700);background:var(--teal-050);font-weight:600;border-bottom-color:var(--teal-600)}

/* ============ 抽屉 ============ */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:#fff;z-index:1055;
  transform:translateX(102%);transition:transform 280ms ease;display:flex;flex-direction:column;
  box-shadow:-18px 0 40px -20px rgba(11,18,20,.4)}
body.drawer-open .drawer{transform:none}
.drawer-mask{position:fixed;inset:0;background:rgba(11,18,20,.5);z-index:1050;opacity:0;visibility:hidden;transition:opacity 240ms ease,visibility 240ms ease}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
body.drawer-open{overflow:hidden}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer__body{padding:16px 12px;overflow-y:auto;flex:1}
.drawer__title{font-size:13px;color:var(--steel-500);letter-spacing:1.2px;padding:8px 10px}
.drawer__link{display:block;padding:12px 14px;border-radius:10px;color:var(--ink-700);font-size:16px}
.drawer__link:hover{background:var(--ice-050);color:var(--teal-700)}
.drawer__link.is-active{background:var(--teal-050);color:var(--teal-700);font-weight:600}
.drawer__foot{padding:16px 20px 24px;border-top:1px solid var(--line)}
.drawer__foot .btn{width:100%}
.drawer__close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-900);cursor:pointer}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:14px 0;font-size:14px;color:var(--steel-500)}
.crumbs li{display:inline-flex;align-items:center;gap:10px}
.crumbs li+li::before{content:"/";color:var(--line)}
.crumbs a{color:var(--steel-500)}
.crumbs a:hover{color:var(--teal-700)}
.crumbs [aria-current]{color:var(--ink-700);font-weight:600}

/* ============ Hero ============ */
.hero{position:relative;background:#fff;padding:56px 0 64px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:repeating-linear-gradient(115deg,#0B1214 0 1px,transparent 1px 14px);
}
.hero::after{
  content:"";position:absolute;right:-70px;top:-60px;width:220px;height:220px;border-radius:50%;
  border:1px dashed rgba(14,124,134,.28);pointer-events:none;
}
.hero .container{position:relative;z-index:1}
.hero h1{margin:16px 0 0;max-width:16em}
.hero__lead{margin-top:16px;font-size:17px;color:var(--steel-500);max-width:32ch}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero__badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero__badges li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-700);
  background:var(--ice-050);border:1px solid var(--line);border-radius:var(--r-pill);padding:7px 14px}
.hero__badges svg{color:var(--teal-600);flex:0 0 auto}
.hero__media{position:relative;margin:0;border-radius:16px;overflow:hidden;box-shadow:var(--sh-1);height:280px}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero__media figcaption{
  position:absolute;left:16px;bottom:16px;right:16px;background:rgba(11,18,20,.68);color:var(--ice-050);
  font-size:13px;padding:8px 12px;border-radius:10px;backdrop-filter:blur(2px)}

/* ============ 合作类型卡 ============ */
.type-grid{margin-top:8px}
.type-card{height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;
  box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.type-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#C3D3D6}
.type-card__icon{width:44px;height:44px;border-radius:12px;background:var(--teal-050);color:var(--teal-700);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px}
.type-card h3{margin-bottom:10px}
.type-card p{font-size:15px;color:var(--steel-500)}
.type-card ul{margin-top:14px;display:grid;gap:8px}
.type-card li{position:relative;padding-left:18px;font-size:14.5px;color:var(--ink-700)}
.type-card li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:1px;background:var(--teal-600)}
.type-card__tag{display:inline-block;margin-top:18px;font-size:13px;color:var(--teal-700);background:var(--teal-050);
  border-radius:var(--r-pill);padding:5px 12px}

/* ============ 图文对照矩阵 ============ */
.matrix-row{align-items:center;gap:44px 0}
.matrix-row+.matrix-row{margin-top:64px}
.matrix-media{margin:0;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1)}
.matrix-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.matrix-copy h3{font-size:20px;margin-bottom:14px}
.matrix-copy p{font-size:16px;color:var(--ink-700)}
.matrix-list{margin-top:20px;display:grid;gap:14px}
.matrix-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-700)}
.matrix-list .num{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--ink-900);color:var(--ice-050);
  font-size:13px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;margin-top:2px}
.matrix-note{margin-top:22px;padding:16px 18px;background:var(--teal-050);border-left:4px solid var(--teal-600);
  border-radius:0 10px 10px 0;font-size:15px;color:var(--teal-700)}

/* ============ 规格清单表 ============ */
.spec-wrap{margin-top:32px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.spec-table{width:100%;border-collapse:collapse;margin:0}
.spec-table caption{caption-side:top;text-align:left;padding:20px 24px 0;font-size:14px;color:var(--steel-500)}
.spec-table thead th{background:var(--ice-100);color:var(--ink-900);font-size:14px;font-weight:700;
  text-align:left;padding:15px 20px;border-bottom:1px solid var(--line);white-space:nowrap}
.spec-table tbody td{padding:18px 20px;border-bottom:1px solid var(--line);font-size:15px;vertical-align:top;color:var(--ink-700)}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody tr{transition:background var(--ease)}
.spec-table tbody tr:hover{background:var(--ice-050)}
.spec-table .stage{font-weight:600;color:var(--ink-900);white-space:nowrap}
.spec-table .cycle{color:var(--teal-700);font-weight:600;white-space:nowrap}

/* ============ 数据条 ============ */
.statbar{background:var(--ink-900);color:var(--ice-050);position:relative;overflow:hidden}
.statbar::before{content:"";position:absolute;inset:0;opacity:.05;
  background-image:repeating-linear-gradient(115deg,#fff 0 1px,transparent 1px 16px)}
.statbar::after{content:"";position:absolute;left:-80px;bottom:-90px;width:220px;height:220px;border-radius:50%;
  border:1px dashed rgba(230,242,243,.18)}
.statbar .container{position:relative;z-index:1}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:56px 0}
.stat-item{padding-left:20px;border-left:1px solid rgba(255,255,255,.14)}
.stat-item .num{font-size:clamp(30px,4vw,48px);font-weight:700;color:var(--teal-050);line-height:1.1}
.stat-item .num em{font-style:normal;color:var(--spark-500)}
.stat-item .cap{margin-top:8px;font-size:13px;color:rgba(242,247,248,.72)}

/* ============ 表单 ============ */
.apply-wrap{display:grid;grid-template-columns:1.35fr 1fr;gap:28px;margin-top:36px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px;box-shadow:var(--sh-1)}
.form-card h3{margin-bottom:6px}
.form-card .hint{font-size:14px;color:var(--steel-500);margin-bottom:22px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px}
.field .req{color:var(--spark-500)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);padding:12px 14px;font-size:15px;
  font-family:inherit;color:var(--ink-700);background:#fff;outline:none;
  transition:border-color var(--ease),box-shadow var(--ease)}
.field input::placeholder,.field textarea::placeholder{color:#9BABAF}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--teal-600);box-shadow:0 0 0 3px rgba(14,124,134,.14)}
.field textarea{min-height:110px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.checkline{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--steel-500);margin:4px 0 22px}
.checkline input{width:16px;height:16px;margin-top:3px;accent-color:var(--teal-600)}
.form-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-foot .tip{font-size:13px;color:var(--steel-500)}
.info-card{background:var(--ice-100);border:1px solid var(--line);border-radius:var(--r-card);padding:30px;height:100%}
.info-card h3{margin-bottom:18px}
.info-list{display:grid;gap:18px}
.info-list li{display:flex;gap:14px;align-items:flex-start}
.info-list .ic{flex:0 0 auto;width:36px;height:36px;border-radius:10px;background:#fff;color:var(--teal-700);
  display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line)}
.info-list .k{font-size:13px;color:var(--steel-500)}
.info-list .v{font-size:15px;color:var(--ink-900);font-weight:600;word-break:break-all}
.info-card .divider{height:1px;background:var(--line);margin:24px 0}

/* ============ FAQ ============ */
.faq{max-width:920px;margin:36px auto 0;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1)}
.faq .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq .accordion-item:last-child{border-bottom:0}
.faq .accordion-button{
  position:relative;background:transparent;color:var(--ink-900);font-size:17px;font-weight:600;
  padding:20px 56px 20px 22px;border-radius:0;box-shadow:none!important;line-height:1.6}
.faq .accordion-button::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:0;
  background:var(--teal-600);border-radius:0 2px 2px 0;transition:width var(--ease)}
.faq .accordion-button:not(.collapsed){color:var(--teal-700);background:var(--ice-050)}
.faq .accordion-button:not(.collapsed)::before{width:4px}
.faq .accordion-button::after{
  width:18px;height:18px;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'><path d='M10 4v12M4 10h12' stroke='%230E7C86' stroke-width='1.8' stroke-linecap='round'/></svg>");
  background-size:18px 18px;background-position:center;background-repeat:no-repeat;transform:none;
  transition:transform 220ms ease;margin-left:auto;flex:0 0 auto}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq .accordion-body{padding:4px 56px 24px 22px;font-size:15px;line-height:1.85;color:var(--steel-500)}

/* ============ CTA ============ */
.cta-band{position:relative;background:var(--ink-900);color:var(--ice-050);overflow:hidden}
.cta-band__bg{position:absolute;inset:0;opacity:.22}
.cta-band__bg img{width:100%;height:100%;object-fit:cover}
.cta-band__inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;
  gap:32px;padding:56px 0;flex-wrap:wrap}
.cta-band h2{color:var(--ice-050);max-width:22em}
.cta-band p{margin-top:12px;color:rgba(242,247,248,.75);font-size:16px;max-width:46ch}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-line{background:transparent;color:var(--ice-050);border-color:rgba(242,247,248,.5)}
.btn-line:hover,.btn-line:focus-visible{background:rgba(242,247,248,.12);color:#fff;border-color:var(--ice-050)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(242,247,248,.78);font-size:15px}
.footer__top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding:64px 0 48px}
.footer__brand .logo{color:var(--ice-050);margin-bottom:16px}
.footer__brand .logo__mark{background:rgba(242,247,248,.1);color:var(--teal-050)}
.footer__brand p{font-size:14px;line-height:1.8;color:rgba(242,247,248,.62);max-width:36ch}
.footer__col h4{color:var(--ice-050);font-size:15px;margin-bottom:18px;font-weight:700}
.footer__col ul{display:grid;gap:12px}
.footer__col a,.footer__col span{color:rgba(242,247,248,.72);font-size:14px;transition:color var(--ease)}
.footer__col a:hover{color:var(--ice-050)}
.footer__bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;font-size:13px;color:rgba(242,247,248,.55)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--sec-y:72px}
  .footer__top{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
}
@media (max-width:991px){
  :root{--sec-y:64px}
  .searchbox,.hotline{display:none}
  .hamburger{display:inline-flex}
  .hero{padding:44px 0 52px}
  .hero__media{height:240px}
  .matrix-row+.matrix-row{margin-top:52px}
  .apply-wrap{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr);padding:44px 0}
  .footer__top{grid-template-columns:1fr 1fr;padding:52px 0 40px}
  .footer__brand{grid-column:1/-1}
}
@media (max-width:767px){
  :root{--sec-y:52px}
  .container{padding-left:16px;padding-right:16px}
  .brandbar__inner{height:60px}
  .logo{font-size:17px}
  .channels a{padding:8px 13px;font-size:14px}
  .hero::after{display:none}
  .hero__actions .btn{flex:1 1 100%}
  .cta-band__inner{padding:44px 0}
  .cta-band__actions .btn{flex:1 1 100%}
  .form-row{grid-template-columns:1fr}
  .form-card,.info-card{padding:22px}
  .faq .accordion-button{padding:18px 48px 18px 16px;font-size:16px}
  .faq .accordion-body{padding:4px 20px 20px 16px}
  .footer__top{grid-template-columns:1fr;gap:26px}
  .footer__bottom{flex-direction:column;align-items:flex-start}
  .spec-wrap{background:transparent;border:0;box-shadow:none;overflow:visible}
  .spec-table caption{padding:0 0 14px}
  .spec-table thead{display:none}
  .spec-table tbody tr{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-icon,12px);
    padding:8px 16px;margin-bottom:14px;box-shadow:var(--sh-1)}
  .spec-table tbody td{display:flex;gap:16px;justify-content:space-between;border-bottom:0;padding:9px 0;font-size:14.5px}
  .spec-table tbody td::before{content:attr(data-label);color:var(--steel-500);font-size:13px;flex:0 0 auto}
  .spec-table tbody td .cell{text-align:right}
}
@media (max-width:520px){
  .stat-grid{grid-template-columns:1fr 1fr;gap:18px}
  .stat-item{padding-left:14px}
  .hero__badges li{font-size:13px}
}