/* ============================================================
   卡速网控制端 · 子页面样式（product / pricing / query /
   news / docs / contact）+ 导航激活态
   ============================================================ */

/* 导航激活态 */
.nav__links a.is-active{color:var(--blue-700)}
.nav__links a.is-active::after{width:100%}

/* ---------- 子页通用 Hero ---------- */
.subhero{
  position:relative;overflow:hidden;
  padding:calc(var(--nav-h) + 64px) 0 54px;
  background:
    radial-gradient(900px 420px at 88% -30%,rgba(59,130,246,.16),transparent 60%),
    radial-gradient(700px 380px at -8% 10%,rgba(147,197,253,.22),transparent 55%),
    var(--bg-soft);
  border-bottom:1px solid var(--border);
}
.subhero__inner{text-align:center;max-width:760px;margin:0 auto}
.breadcrumb{display:inline-flex;gap:8px;align-items:center;font-size:13px;color:var(--muted);margin-bottom:14px}
.breadcrumb a{color:var(--blue-700)}
.breadcrumb span{color:#c2cfe3}
.subhero h1{font-size:clamp(28px,4vw,44px);font-weight:800;color:var(--navy);letter-spacing:-.5px;line-height:1.15}
.subhero p{color:var(--muted);font-size:16.5px;margin-top:14px}
.subhero .pill{margin-bottom:18px}

/* 子页内容区顶部间距 */
.page-section{padding:72px 0}
.page-section--soft{background:var(--bg-soft)}

/* ============ 定价 pricing ============ */
.price-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;align-items:stretch}
.plan{flex:1 1 320px;max-width:360px;background:#fff;border:1px solid var(--border);border-radius:22px;padding:34px 28px;display:flex;flex-direction:column;position:relative;transition:transform .3s,box-shadow .3s,border-color .3s}
.plan:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.plan--featured{border-color:transparent;box-shadow:var(--shadow-lg);background:#fff}
.plan--featured::before{content:"";position:absolute;inset:0;border-radius:22px;padding:2px;background:var(--grad-primary);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.plan__tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--grad-primary);color:#fff;font-size:12px;font-weight:700;padding:5px 15px;border-radius:999px;box-shadow:var(--shadow)}
.plan__name{font-size:19px;font-weight:800;color:var(--navy)}
.plan__price{font-size:34px;font-weight:800;color:var(--blue-700);margin:14px 0 4px}
.plan__price small{font-size:14px;color:var(--muted);font-weight:600}
.plan__desc{color:var(--muted);font-size:14px;min-height:42px}
.plan__feat{margin:22px 0;display:grid;gap:12px;flex:1}
.plan__feat li{display:flex;gap:10px;font-size:14.5px;color:var(--ink)}
.plan__feat li svg{flex:none;margin-top:3px}
.plan .btn{width:100%}

.faq{margin-top:64px}
.faq__title{text-align:center;font-size:26px;font-weight:800;color:var(--navy);margin-bottom:30px}
.faq__item{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px 22px;margin-bottom:14px;transition:box-shadow .25s,border-color .25s}
.faq__item:hover{box-shadow:var(--shadow-sm);border-color:var(--blue-300)}
.faq__item h4{font-size:16px;color:var(--navy);margin-bottom:6px;display:flex;gap:10px;align-items:center}
.faq__item h4::before{content:"Q";font-size:13px;font-weight:800;color:#fff;background:var(--blue-500);width:22px;height:22px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;flex:none}
.faq__item p{color:var(--muted);font-size:14.5px}

/* ============ 查询 query ============ */
.query-wrap{max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:22px;box-shadow:var(--shadow);overflow:hidden}
.query-tabs{display:flex;gap:6px;padding:10px 14px 0;background:var(--bg-soft);border-bottom:1px solid var(--border)}
.query-tabs button{flex:1;border:0;background:transparent;font-family:inherit;font-size:15px;font-weight:600;color:var(--muted);padding:14px 8px;cursor:pointer;border-radius:12px 12px 0 0;position:relative;transition:color .2s,background .2s}
.query-tabs button.is-active{color:var(--blue-700);background:#fff}
.query-tabs button.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;background:var(--grad-primary);border-radius:2px}
.query-body{padding:30px 30px 34px}
.query-form{display:flex;gap:12px;flex-wrap:wrap}
.query-form .field{flex:1;min-width:220px}
.query-form input,.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:15px;color:var(--ink);
  padding:13px 16px;border:1.5px solid var(--border);border-radius:12px;background:#fff;transition:border-color .2s,box-shadow .2s;
}
.query-form input:focus,.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue-400);box-shadow:0 0 0 4px rgba(59,130,246,.14)}
.query-form .btn{flex:none}

.query-result{margin-top:22px}
.query-empty{text-align:center;color:var(--muted);font-size:14.5px;padding:26px;border:1.5px dashed var(--border);border-radius:14px;background:var(--bg-soft)}
.result-card{border:1px solid var(--border);border-radius:14px;padding:20px 22px;animation:fadeUp .4s ease both}
.result-card__head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.result-card__status{font-size:13px;font-weight:700;color:#16a34a;background:#e7f7ec;padding:5px 12px;border-radius:999px}
.result-card__row{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px dashed var(--border);font-size:14.5px}
.result-card__row:last-child{border-bottom:0}
.result-card__row span{color:var(--muted)}
.result-card__row b{color:var(--navy);font-weight:700}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.query-note{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:48px}
.query-note__item{background:var(--bg-soft);border:1px solid var(--border);border-radius:16px;padding:22px}
.query-note__item h4{font-size:16px;color:var(--navy);margin-bottom:8px}
.query-note__item p{font-size:14px;color:var(--muted)}

/* ============ 新闻 news ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--border);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s,border-color .3s}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--blue-300)}
.news-card__thumb{height:160px;background:var(--grad-primary);position:relative;overflow:hidden}
.news-card__thumb::after{content:"";position:absolute;inset:0;background:radial-gradient(400px 200px at 80% 20%,rgba(255,255,255,.22),transparent 60%)}
.news-card__cat{position:absolute;top:14px;left:14px;z-index:1;background:rgba(255,255,255,.92);color:var(--blue-700);font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px}
.news-card__body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.news-card__meta{font-size:13px;color:var(--muted);margin-bottom:10px}
.news-card__body h3{font-size:18px;color:var(--navy);line-height:1.4;margin-bottom:10px}
.news-card__body p{font-size:14px;color:var(--muted);flex:1}
.news-card__more{margin-top:16px;font-size:14px;font-weight:600;color:var(--blue-700);display:inline-flex;align-items:center;gap:6px;transition:gap .2s}
.news-card:hover .news-card__more{gap:10px}

/* ============ 文档 docs ============ */
.docs-layout{display:grid;grid-template-columns:260px 1fr;gap:36px;align-items:start}
.docs-side{position:sticky;top:calc(var(--nav-h) + 20px);background:#fff;border:1px solid var(--border);border-radius:16px;padding:14px;box-shadow:var(--shadow-sm)}
.docs-side h5{font-size:13px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);padding:10px 12px 6px}
.docs-side a{display:block;font-size:14.5px;color:var(--ink);padding:10px 12px;border-radius:10px;transition:background .2s,color .2s}
.docs-side a:hover,.docs-side a.is-active{background:var(--bg-tint);color:var(--blue-700);font-weight:600}
.docs-main{}
.doc-search{width:100%;font-family:inherit;font-size:15px;padding:14px 18px;border:1.5px solid var(--border);border-radius:14px;margin-bottom:22px;background:#fff}
.doc-search:focus{outline:none;border-color:var(--blue-400);box-shadow:0 0 0 4px rgba(59,130,246,.14)}
.doc-group__title{font-size:15px;font-weight:700;color:var(--blue-700);margin:8px 0 14px;display:flex;align-items:center;gap:8px}
.doc-group__title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--grad-primary)}
.doc-item{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px 18px;margin-bottom:12px;transition:border-color .2s,box-shadow .2s,transform .2s}
.doc-item:hover{border-color:var(--blue-300);box-shadow:var(--shadow-sm);transform:translateX(3px)}
.doc-item__ico{width:42px;height:42px;border-radius:11px;background:var(--bg-tint);display:flex;align-items:center;justify-content:center;font-size:20px;flex:none}
.doc-item__txt{flex:1}
.doc-item__txt h4{font-size:15.5px;color:var(--navy)}
.doc-item__txt p{font-size:13.5px;color:var(--muted)}
.doc-item__time{font-size:12.5px;color:var(--muted);flex:none}

/* ============ 联系 contact ============ */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.contact-info{background:var(--grad-primary);border-radius:22px;padding:38px 34px;color:#fff;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.contact-info::after{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:rgba(255,255,255,.08);bottom:-140px;right:-100px}
.contact-info h3{font-size:22px;margin-bottom:8px;position:relative}
.contact-info>p{color:rgba(255,255,255,.88);font-size:14.5px;margin-bottom:26px;position:relative}
.contact-info__item{display:flex;gap:14px;align-items:flex-start;margin-bottom:22px;position:relative}
.contact-info__item .ci-ico{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;font-size:20px;flex:none}
.contact-info__item h5{font-size:14px;color:rgba(255,255,255,.8);font-weight:600;margin-bottom:2px}
.contact-info__item p{font-size:15px;font-weight:600}
.contact-form{background:#fff;border:1px solid var(--border);border-radius:22px;padding:34px 32px;box-shadow:var(--shadow)}
.contact-form h3{font-size:20px;color:var(--navy);margin-bottom:20px}

/* 联系页右侧二维码卡片 */
.contact-side{background:#fff;border:1px solid var(--border);border-radius:22px;padding:28px 26px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px}
.contact-side h4{font-size:16px;color:var(--navy);margin:0}
.contact-side .qr{display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px;background:var(--bg-soft);border:1px solid var(--border);border-radius:16px;margin-top:4px}
.contact-side .qr img{width:150px;height:150px;border-radius:12px;object-fit:cover}
.contact-side .qr span{font-size:13px;color:var(--muted)}

/* 客服团队 */
.kf-section{margin-top:56px;text-align:center}
.kf-title{font-size:26px;font-weight:800;color:var(--navy)}
.kf-sub{color:var(--muted);margin:8px 0 30px;font-size:14.5px}
.kf-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px;text-align:left}
.kf-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:24px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.kf-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.kf-avatar{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800;color:#fff;margin-bottom:14px;background:var(--grad-primary)}
.kf-avatar--biz{background:linear-gradient(135deg,#f59e0b,#d97706)}
.kf-name{font-size:17px;font-weight:700;color:var(--navy)}
.kf-tag{display:inline-block;margin:8px 0 12px;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px}
.kf-tag--sales{background:rgba(37,99,235,.1);color:var(--blue-700)}
.kf-tag--biz{background:rgba(245,158,11,.14);color:#b45309}
.kf-lines{display:flex;flex-direction:column;gap:6px}
.kf-line{font-size:13.5px;color:var(--muted);display:flex;align-items:center;gap:8px}
.kf-line i{width:18px;text-align:center;color:var(--blue-600)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--navy);margin-bottom:7px}
.field textarea{resize:vertical;min-height:110px}
.form-note{font-size:13px;color:var(--muted);margin-top:6px}
.form-success{display:none;background:#e7f7ec;color:#15803d;border:1px solid #b6e6c4;border-radius:12px;padding:14px 16px;font-size:14.5px;font-weight:600;margin-bottom:16px}
.form-success.is-show{display:block;animation:fadeUp .4s ease both}

/* ============ 响应式（子页） ============ */
@media (max-width:1024px){
  .plan{flex:1 1 100%;max-width:460px;margin:0 auto}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .docs-layout{grid-template-columns:1fr}
  .docs-side{position:static;display:flex;flex-wrap:wrap;gap:6px}
  .docs-side h5{width:100%}
  .docs-side a{flex:1;min-width:120px;text-align:center}
  .contact-grid{grid-template-columns:1fr}
  .query-note{grid-template-columns:1fr}
}
@media (max-width:760px){
  .news-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .query-tabs{overflow-x:auto}
  .query-tabs button{flex:none;padding:14px 18px;white-space:nowrap}
  .page-section{padding:48px 0}
  .subhero{padding:calc(var(--nav-h) + 40px) 0 40px}
}

/* ============ 通用 Tab 条（授权 / 价格 / 文档 / 新闻分类） ============ */
.pg-tabs{display:flex;gap:6px;padding:10px 14px 0;background:var(--bg-soft);border:1px solid var(--border);border-radius:16px 16px 0 0;flex-wrap:wrap}
.pg-tabs button{flex:1;min-width:120px;border:0;background:transparent;font-family:inherit;font-size:15px;font-weight:600;color:var(--muted);padding:14px 10px;cursor:pointer;border-radius:12px 12px 0 0;position:relative;transition:color .2s,background .2s}
.pg-tabs button.is-active{color:var(--blue-700);background:#fff}
.pg-tabs button.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;background:var(--grad-primary);border-radius:2px}
.pg-tabs--plain{background:transparent;border:0;border-radius:0;padding:0;gap:10px}
.pg-tabs--plain button{flex:none;min-width:0;background:#fff;border:1px solid var(--border);border-radius:999px;padding:9px 20px;font-size:14px}
.pg-tabs--plain button.is-active{background:var(--grad-primary);color:#fff;border-color:transparent}
.pg-tabs--plain button.is-active::after{display:none}

/* ============ 套餐卡片补充 ============ */
.plan__orig{font-size:13px;color:var(--muted);text-decoration:line-through;margin:-2px 0 2px}
.plan__quota{margin:6px 0 4px;padding:14px;border-radius:12px;background:var(--bg-soft);border:1px solid var(--border)}
.plan__quota-item{display:flex;justify-content:space-between;align-items:center;font-size:13.5px;color:var(--muted);padding:5px 0}
.plan__quota-item b{color:var(--blue-700);font-size:15px}
.plan__feat-li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink);margin-bottom:12px}
.plan__feat-li svg{flex:none;margin-top:3px}

/* ============ 首页最新动态 ============ */
.home-news{display:flex;flex-direction:column;gap:12px;max-width:760px;margin:0 auto}
.home-news__item{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px 20px;transition:transform .25s,box-shadow .25s,border-color .25s;text-decoration:none}
.home-news__item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--blue-300)}
.home-news__date{flex:none;font-size:13px;color:var(--muted);width:84px}
.home-news__t{flex:1;font-size:15px;font-weight:600;color:var(--navy);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.home-news__item i{color:var(--blue-500)}

/* ============ 新闻分类 + 分页 ============ */
.news-cats{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:34px}
.news-cats button{border:1px solid var(--border);background:#fff;color:var(--muted);font-family:inherit;font-size:14px;font-weight:600;padding:10px 22px;border-radius:999px;cursor:pointer;transition:.2s}
.news-cats button.is-active{background:var(--grad-primary);color:#fff;border-color:transparent;box-shadow:var(--shadow-sm)}
.news-pagination{display:flex;gap:8px;justify-content:center;margin-top:30px}
.news-pagination a{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 12px;border-radius:10px;font-size:14px;font-weight:600;text-decoration:none;background:#fff;color:var(--muted);border:1px solid var(--border);transition:.2s}
.news-pagination a.is-active{background:var(--grad-primary);color:#fff;border-color:transparent}
.news-nav{display:flex;justify-content:space-between;gap:16px;margin-top:36px}
.news-nav__btn{flex:1;max-width:48%;background:#fff;border:1px solid var(--border);border-radius:14px;padding:16px 20px;font-size:14px;font-weight:600;color:var(--navy);text-decoration:none;transition:.2s;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-nav__btn:hover{box-shadow:var(--shadow);border-color:var(--blue-300)}
.news-nav__btn--r{text-align:right}

/* ============ 文章详情正文 ============ */
.news-detail{background:#fff;border:1px solid var(--border);border-radius:18px;padding:34px 38px;box-shadow:var(--shadow);font-size:15.5px;line-height:1.95;color:var(--ink)}
.news-detail img{max-width:100%;height:auto;border-radius:10px;margin:10px 0}
.news-detail h1,.news-detail h2,.news-detail h3{color:var(--navy);line-height:1.4;margin:24px 0 14px}
.news-detail h2{font-size:24px;font-weight:800}
.news-detail h3{font-size:20px;font-weight:700}
.news-detail p{margin:0 0 16px}
.news-detail pre{background:#0f172a;color:#e2e8f0;padding:16px;border-radius:8px;overflow-x:auto;font-size:13px;margin:14px 0}
.news-detail code{background:#f1f5f9;padding:2px 6px;border-radius:4px;font-size:13px;color:#e11d48}
.news-detail blockquote{border-left:4px solid var(--blue-500);margin:14px 0;padding:8px 16px;background:var(--bg-soft);color:var(--muted);border-radius:0 6px 6px 0}
.news-detail ul,.news-detail ol{padding-left:22px;margin:0 0 16px}
.news-detail li{margin:6px 0}
.news-detail table{border-collapse:collapse;width:100%;margin:14px 0}
.news-detail td,.news-detail th{border:1px solid var(--border);padding:10px 14px;text-align:left}
.news-detail th{background:var(--bg-soft);font-weight:600}
.news-detail a{color:var(--blue-600);text-decoration:none}
.news-detail a:hover{text-decoration:underline}

/* ============ 文档章节锚点 ============ */
.doc-side__link{display:block;font-size:14.5px;color:var(--ink);padding:11px 14px;border-radius:10px;transition:background .2s,color .2s;text-decoration:none;border-left:3px solid transparent}
.doc-side__link:hover{background:var(--bg-tint);color:var(--blue-700)}
.doc-side__link.is-active{background:var(--bg-tint);color:var(--blue-700);font-weight:600;border-left-color:var(--blue-500)}
/* 文档目录一二级层次感 */
.doc-side__link--lv1{font-weight:700;color:var(--navy);padding-left:14px;border-left-color:var(--blue-500)}
.doc-side__link--lv2{padding-left:34px;font-size:13.5px;color:var(--muted)}
.doc-side__link--lv2::before{content:"\203A";margin-right:8px;color:var(--gray-300);font-weight:700}
.doc-side__link--lv2:hover{color:var(--blue-700)}
.doc-side__link--lv2.is-active{color:var(--blue-700);font-weight:600}
.doc-section{padding:8px 0 26px;margin-bottom:18px;border-bottom:1px dashed var(--border);scroll-margin-top:calc(var(--nav-h) + 24px)}
.doc-section:last-child{border-bottom:0}
.doc-section__idx{display:inline-block;font-size:12px;font-weight:700;color:var(--blue-600);background:var(--bg-tint);padding:4px 12px;border-radius:999px;margin-bottom:10px}
.doc-section__title{font-size:22px;font-weight:800;color:var(--navy);margin-bottom:14px}
.doc-section__body{font-size:15px;line-height:1.9;color:var(--ink)}
.doc-section__body img{max-width:100%;height:auto;border-radius:8px;margin:8px 0}
.doc-section__body pre{background:#0f172a;color:#e2e8f0;padding:16px;border-radius:8px;overflow-x:auto;font-size:13px}
.doc-section__body code{background:#f1f5f9;padding:2px 6px;border-radius:4px;font-size:13px;color:#e11d48}
.doc-section__body blockquote{border-left:4px solid var(--blue-500);margin:12px 0;padding:8px 16px;background:var(--bg-soft);color:var(--muted);border-radius:0 6px 6px 0}
.doc-section__body table{border-collapse:collapse;width:100%;margin:12px 0}
.doc-section__body td,.doc-section__body th{border:1px solid var(--border);padding:10px 14px;text-align:left}
.doc-section__body th{background:var(--bg-soft);font-weight:600}
.doc-section__body a{color:var(--blue-600);text-decoration:none}
.doc-section__body a:hover{text-decoration:underline}