/* ============================================================
   generic-7 · 通用型企业子站模板（GEO 规范版）
   类前缀：dt-   原型：A 分屏 Hero（深海军蓝 / 青 / 靛紫，玻璃拟态）
   ============================================================ */

/* ---------- 设计令牌 ---------- */
.dt-body {
  --dt-bg: #070b1e;
  --dt-bg-2: #0a1130;
  --dt-cyan: #22d3ee;
  --dt-indigo: #6366f1;
  --dt-grad: linear-gradient(120deg, #22d3ee, #6366f1);
  --dt-grad-soft: linear-gradient(140deg, rgba(34, 211, 238, .16), rgba(99, 102, 241, .18));
  --dt-heading: #f2f6ff;
  --dt-ink: #c3cce0;
  --dt-muted: #8492b0;
  --dt-line: rgba(255, 255, 255, .12);
  --dt-line-2: rgba(255, 255, 255, .07);
  --dt-panel: rgba(255, 255, 255, .045);
  --dt-panel-2: rgba(255, 255, 255, .08);
  --dt-r: 20px;
  --dt-r-sm: 12px;
  --dt-shadow: 0 24px 60px rgba(2, 6, 23, .55);
  --dt-shadow-hover: 0 30px 70px rgba(2, 6, 23, .7);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
.dt-body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--dt-ink);
  background:
    radial-gradient(1100px 560px at 82% -8%, rgba(99, 102, 241, .22), transparent 62%),
    radial-gradient(900px 520px at -6% 18%, rgba(34, 211, 238, .12), transparent 58%),
    var(--dt-bg);
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
}
.dt-body img { max-width: 100%; height: auto; border: 0; }
.dt-body a { color: inherit; text-decoration: none; }
.dt-body ul { list-style: none; margin: 0; padding: 0; }
.dt-body ::selection { background: rgba(34, 211, 238, .35); color: #fff; }
.dt-wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.dt-hide { display: none !important; }
.dt-noscroll { overflow: hidden; }

/* ---------- 按钮 ---------- */
.dt-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 13px 26px; border-radius: 999px; font-size: 14px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; transition: all .25s ease;
}
.dt-btn--primary { background: var(--dt-grad); color: #04101f; box-shadow: 0 14px 34px rgba(34, 211, 238, .22); }
.dt-btn--primary:hover { transform: translateY(-2px); box-shadow: 0 20px 44px rgba(99, 102, 241, .32); }
.dt-btn--ghost { border-color: rgba(255, 255, 255, .2); color: var(--dt-heading); background: rgba(255, 255, 255, .04); }
.dt-btn--ghost:hover { border-color: var(--dt-cyan); color: var(--dt-cyan); background: rgba(34, 211, 238, .08); }
.dt-more { color: var(--dt-cyan); font-size: 14px; font-weight: 600; }
.dt-more:hover { color: #fff; }

/* ---------- 顶栏 / 导航 ---------- */
.dt-head {
  position: sticky; top: 0; z-index: 80;
  background: rgba(7, 11, 30, .82);
  border-bottom: 1px solid var(--dt-line-2);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
}
.dt-head__in {
  max-width: 1280px; margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; gap: 24px;
}
.dt-brand { display: flex; align-items: center; gap: 14px; flex: 0 0 auto; min-width: 0; }
.dt-brand__logo { display: block; }
.dt-brand__img { height: 40px; width: auto; display: block; border-radius: 8px; }
.dt-brand__title { display: flex; flex-direction: column; min-width: 0; }
.dt-brand__logo + .dt-brand__title { padding-left: 14px; border-left: 1px solid var(--dt-line); }
.dt-brand__name {
  font-size: 19px; font-weight: 700; line-height: 1.3; letter-spacing: .5px;
  background: linear-gradient(100deg, #fff, #a9d8ff); -webkit-background-clip: text; background-clip: text; color: transparent;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.dt-brand__meta { font-size: 11px; color: var(--dt-muted); white-space: nowrap; }
.dt-brand__meta b { color: var(--dt-cyan); font-weight: 700; }

.dt-nav { display: flex; align-items: center; justify-content: center; flex: 1 1 auto; gap: 2px; flex-wrap: wrap; }
.dt-nav__item {
  display: inline-block; padding: 8px 14px; font-size: 14px; color: var(--dt-ink);
  border-radius: 999px; transition: all .2s;
}
.dt-nav__item:hover, .dt-nav__on { color: #fff; background: rgba(255, 255, 255, .07); }
.dt-nav__on { box-shadow: inset 0 0 0 1px rgba(34, 211, 238, .35); }

.dt-head__tel {
  flex: 0 0 auto; display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 18px; border-radius: 999px; font-size: 13px; font-weight: 700;
  color: #04101f; background: var(--dt-grad); white-space: nowrap;
}
.dt-head__tel span { font-weight: 500; opacity: .78; }
.dt-head__tel:hover { box-shadow: 0 10px 26px rgba(34, 211, 238, .3); }

.dt-burger {
  display: none; flex: 0 0 auto; margin-left: auto;
  width: 42px; height: 38px; border-radius: 10px; border: 1px solid var(--dt-line);
  background: rgba(255, 255, 255, .05); cursor: pointer; padding: 9px 10px;
}
.dt-burger span { display: block; width: 20px; height: 2px; border-radius: 2px; background: var(--dt-heading); margin: 4px 0; }

/* ---------- 移动抽屉 ---------- */
.dt-drawer {
  display: none; position: fixed; top: 0; right: 0; bottom: 0; width: 82%; max-width: 330px;
  background: #0a1130; border-left: 1px solid var(--dt-line); z-index: 200;
  padding: 20px; overflow-y: auto; box-shadow: -24px 0 60px rgba(0, 0, 0, .55);
}
.dt-drawer--open { display: block; }
.dt-drawer__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.dt-drawer__name { font-weight: 700; color: var(--dt-heading); }
.dt-drawer__close { border: 0; background: none; color: var(--dt-muted); font-size: 26px; line-height: 1; cursor: pointer; }
.dt-drawer__item { display: block; padding: 13px 4px; border-bottom: 1px solid var(--dt-line-2); font-size: 15px; color: var(--dt-ink); }
.dt-drawer__on { color: var(--dt-cyan); font-weight: 700; }
.dt-drawer__tel { display: block; margin-top: 22px; padding: 13px; border-radius: 999px; text-align: center; background: var(--dt-grad); color: #04101f; font-weight: 700; }

/* ---------- Hero 分屏 ---------- */
.dt-hero { position: relative; overflow: hidden; isolation: isolate; }
.dt-hero::before {
  content: ""; position: absolute; z-index: -2; inset: -20% -10% auto auto;
  width: 900px; height: 620px; border-radius: 50%;
  background: radial-gradient(circle at 60% 40%, rgba(99, 102, 241, .38), transparent 62%);
  filter: blur(10px); pointer-events: none;
}
.dt-hero::after {
  content: ""; position: absolute; z-index: -1; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 78%);
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 78%);
  pointer-events: none;
}
.dt-hero__in {
  max-width: 1200px; margin: 0 auto; padding: 76px 24px 118px;
  display: grid; grid-template-columns: 1.06fr .94fr; gap: 52px; align-items: center;
}
.dt-hero__text { max-width: 640px; }
.dt-hero__in > .dt-hero__text:only-child { grid-column: 1 / -1; max-width: 780px; }
.dt-hero__badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: 999px; font-size: 12px; letter-spacing: .5px;
  color: var(--dt-cyan); background: rgba(34, 211, 238, .08);
  border: 1px solid rgba(34, 211, 238, .3); margin-bottom: 20px;
}
.dt-hero__h1 {
  margin: 0 0 18px; font-size: clamp(32px, 4.4vw, 54px); line-height: 1.2;
  font-weight: 800; color: var(--dt-heading); letter-spacing: -.5px;
}
.dt-hero__brand {
  display: block; margin-top: 8px; font-size: .52em; font-weight: 600; letter-spacing: 1px;
  background: var(--dt-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.dt-hero__lead { margin: 0 0 28px; font-size: 16px; color: var(--dt-ink); max-width: 560px; }
.dt-hero__btns { display: flex; gap: 12px; flex-wrap: wrap; }
.dt-hero__note { margin: 22px 0 0; font-size: 12px; color: var(--dt-muted); letter-spacing: .5px; }
.dt-hero__media { position: relative; }
.dt-hero__media::before {
  content: ""; position: absolute; inset: 8% -6% -10% 6%; z-index: -1;
  background: var(--dt-grad); filter: blur(46px); opacity: .34; border-radius: 40px;
}
.dt-hero__media img {
  display: block; width: 100%; border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, .18); box-shadow: var(--dt-shadow);
}

/* ---------- 通用区块 ---------- */
.dt-sec { padding: 74px 0; }
.dt-head2 { text-align: center; margin-bottom: 38px; }
.dt-eyebrow {
  display: inline-block; font-size: 11px; letter-spacing: 3px; text-transform: uppercase;
  color: var(--dt-cyan); font-weight: 700; margin-bottom: 10px;
}
.dt-title { font-size: 31px; line-height: 1.3; color: var(--dt-heading); margin: 0 0 10px; font-weight: 700; letter-spacing: -.3px; }
.dt-title--sm { font-size: 24px; }
.dt-lead { margin: 0 auto; font-size: 14px; color: var(--dt-muted); max-width: 660px; }
.dt-center { text-align: center; margin-top: 32px; }
.dt-rich { font-size: 15px; color: var(--dt-ink); line-height: 1.95; }
.dt-rich p { margin: 0 0 13px; }
.dt-rich img { border-radius: var(--dt-r-sm); }

/* ---------- 实力数据条 ---------- */
.dt-stat { position: relative; z-index: 3; margin-top: -62px; }
.dt-stat__bar {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  background: linear-gradient(180deg, rgba(255, 255, 255, .09), rgba(255, 255, 255, .035));
  border: 1px solid var(--dt-line); border-radius: var(--dt-r);
  box-shadow: var(--dt-shadow); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  overflow: hidden;
}
.dt-stat__item { padding: 24px 18px 22px; border-right: 1px solid var(--dt-line-2); }
.dt-stat__item:last-child { border-right: 0; }
.dt-stat__no { display: block; font-size: 10px; letter-spacing: 2px; color: var(--dt-cyan); margin-bottom: 6px; }
.dt-stat__name {
  display: block; font-size: 20px; font-weight: 700; line-height: 1.35; margin-bottom: 6px;
  background: linear-gradient(100deg, #fff, #9adcff); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.dt-stat__desc { display: block; font-size: 12.5px; color: var(--dt-muted); }

/* ---------- 公司简介 ---------- */
.dt-about__in { display: grid; grid-template-columns: 1.16fr .84fr; gap: 48px; align-items: start; }
.dt-about__full {
  font-size: 15px; color: var(--dt-ink); line-height: 1.95; max-height: 250px; overflow: hidden; position: relative;
  -webkit-mask-image: linear-gradient(180deg, #000 78%, transparent);
  mask-image: linear-gradient(180deg, #000 78%, transparent);
}
.dt-about__full--open { max-height: none; -webkit-mask-image: none; mask-image: none; }
.dt-about__full p { margin: 0 0 13px; }
.dt-about__full img { display: none; }
.dt-about__toggle { margin: 10px 0 16px; }
.dt-about__btn {
  display: inline-flex; align-items: center; gap: 6px; border: 0; background: none;
  color: var(--dt-cyan); font-size: 13px; font-weight: 600; cursor: pointer; padding: 4px 0;
}
.dt-about__side {
  position: relative; padding: 30px 26px; border-radius: var(--dt-r);
  border: 1px solid var(--dt-line); background: var(--dt-grad-soft);
  box-shadow: var(--dt-shadow); overflow: hidden;
}
.dt-about__side::after {
  content: ""; position: absolute; right: -40px; bottom: -60px; width: 200px; height: 200px;
  border-radius: 50%; background: radial-gradient(circle, rgba(34, 211, 238, .25), transparent 65%);
}
.dt-about__sidek { display: block; font-size: 10px; letter-spacing: 3px; color: var(--dt-cyan); margin-bottom: 12px; }
.dt-about__sidett { margin: 0 0 8px; font-size: 22px; font-weight: 700; color: var(--dt-heading); line-height: 1.4; }
.dt-about__sided { margin: 0 0 24px; font-size: 13px; color: var(--dt-muted); }
.dt-about__sidebtns { display: flex; gap: 10px; flex-wrap: wrap; }
.dt-about__sidebtns .dt-btn { padding: 10px 18px; font-size: 13px; }

/* ---------- 产品 ---------- */
.dt-prods { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 22px; }
.dt-prod {
  display: block; border-radius: var(--dt-r); overflow: hidden;
  border: 1px solid var(--dt-line); background: var(--dt-panel);
  transition: all .25s ease;
}
.dt-prod:hover { transform: translateY(-5px); border-color: rgba(34, 211, 238, .45); box-shadow: var(--dt-shadow-hover); background: var(--dt-panel-2); }
.dt-prod__img { display: block; aspect-ratio: 4 / 3; overflow: hidden; background: #0d1738; }
.dt-prod__img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
.dt-prod:hover .dt-prod__img img { transform: scale(1.05); }
.dt-prod__body { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 16px 18px; }
.dt-prod__name { font-size: 15px; font-weight: 600; color: var(--dt-heading); }
.dt-prod__more { font-size: 12px; color: var(--dt-muted); white-space: nowrap; }
.dt-prod:hover .dt-prod__more { color: var(--dt-cyan); }

/* ---------- 核心优势 ---------- */
.dt-adv { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 22px; }
.dt-adv__item {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 22px 22px; border-radius: var(--dt-r-sm);
  background: var(--dt-panel); border: 1px solid var(--dt-line-2);
  transition: all .25s ease;
}
.dt-adv__item:hover { border-color: rgba(99, 102, 241, .5); background: var(--dt-panel-2); transform: translateX(3px); }
.dt-adv__no {
  flex: 0 0 auto; width: 42px; height: 42px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; color: #04101f; background: var(--dt-grad);
}
.dt-adv__body { min-width: 0; }
.dt-adv__name { margin: 0 0 6px; font-size: 17px; font-weight: 700; color: var(--dt-heading); }
.dt-adv__desc { margin: 0; font-size: 13.5px; color: var(--dt-muted); }

/* ---------- 承诺 / 领域 ---------- */
.dt-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: stretch; }
.dt-duo > :only-child { grid-column: 1 / -1; }
.dt-panel {
  background: var(--dt-panel); border: 1px solid var(--dt-line);
  border-radius: var(--dt-r); padding: 30px 26px;
}
.dt-panel .dt-eyebrow { margin-bottom: 8px; }
.dt-checks { margin-top: 18px; display: grid; gap: 12px; }
.dt-checks__item {
  display: flex; align-items: flex-start; gap: 12px; font-size: 14px; color: var(--dt-ink);
  padding-bottom: 11px; border-bottom: 1px solid var(--dt-line-2);
}
.dt-checks__item:last-child { border-bottom: 0; padding-bottom: 0; }
.dt-checks__ico {
  flex: 0 0 auto; width: 22px; height: 22px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; color: #04101f; background: var(--dt-grad);
}
.dt-apps__list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.dt-apps__item {
  display: inline-block; padding: 8px 16px; border-radius: 999px;
  font-size: 13px; color: var(--dt-heading);
  background: rgba(255, 255, 255, .05); border: 1px solid var(--dt-line);
}

/* ---------- 广告图 ---------- */
.dt-banner { margin: 0; padding: 0 0 20px; }
.dt-banner__cap { text-align: center; font-size: 11px; letter-spacing: 3px; color: var(--dt-muted); margin: 0 0 18px; }
.dt-banner__frame {
  padding: 12px; border-radius: 26px;
  border: 1px solid rgba(34, 211, 238, .28);
  background: linear-gradient(160deg, rgba(34, 211, 238, .1), rgba(99, 102, 241, .1));
  box-shadow: var(--dt-shadow);
}
.dt-banner__img { display: block; width: 100%; border-radius: 16px; }

/* ---------- 新闻 ---------- */
.dt-news { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.dt-news__item {
  display: block; padding: 22px; border-radius: var(--dt-r-sm);
  background: var(--dt-panel); border: 1px solid var(--dt-line-2); transition: all .25s ease;
}
.dt-news__item:hover { border-color: rgba(34, 211, 238, .4); background: var(--dt-panel-2); transform: translateY(-3px); }
.dt-news__date { display: block; font-size: 11px; letter-spacing: 1.5px; color: var(--dt-cyan); margin-bottom: 8px; }
.dt-news__title { display: block; font-size: 16px; font-weight: 600; color: var(--dt-heading); margin-bottom: 8px; line-height: 1.5; }
.dt-news__desc {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  font-size: 13px; color: var(--dt-muted);
}

/* ---------- FAQ ---------- */
.dt-faq { max-width: 920px; margin: 0 auto; }
.dt-faq__item {
  border-radius: var(--dt-r-sm); border: 1px solid var(--dt-line-2);
  background: var(--dt-panel); margin-bottom: 10px; padding: 0 20px;
  transition: border-color .2s;
}
.dt-faq__item[open] { border-color: rgba(34, 211, 238, .35); }
.dt-faq__item summary {
  position: relative; padding: 17px 32px 17px 0; cursor: pointer; list-style: none;
  font-size: 15px; font-weight: 600; color: var(--dt-heading);
}
.dt-faq__item summary::-webkit-details-marker { display: none; }
.dt-faq__item summary::after {
  content: "+"; position: absolute; right: 0; top: 14px; font-size: 20px; font-weight: 300; color: var(--dt-cyan);
}
.dt-faq__item[open] summary::after { content: "–"; }
.dt-faq__item p { margin: 0 0 18px; font-size: 14px; color: var(--dt-muted); }

/* ---------- 分站 ---------- */
.dt-city__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; }
.dt-city__item {
  display: flex; flex-direction: column; gap: 2px; padding: 14px 16px;
  border-radius: var(--dt-r-sm); border: 1px solid var(--dt-line-2);
  background: rgba(255, 255, 255, .03); transition: all .2s;
}
.dt-city__item:hover { border-color: rgba(34, 211, 238, .45); background: rgba(34, 211, 238, .06); }
.dt-city__region { font-size: 15px; font-weight: 700; color: var(--dt-heading); }
.dt-city__site { font-size: 11.5px; color: var(--dt-muted); }
.dt-city__item--fold { display: none; }
.dt-city__grid.dt-city__grid--open .dt-city__item--fold { display: flex; }
.dt-city__more {
  display: block; margin: 26px auto 0; padding: 9px 26px; border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, .45); background: none; color: var(--dt-cyan);
  font-size: 13px; cursor: pointer;
}
.dt-city__more:hover { background: rgba(34, 211, 238, .1); }

/* ---------- 关联企业 ---------- */
.dt-partners { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.dt-partners__item {
  display: inline-flex; align-items: baseline; gap: 8px; padding: 8px 16px;
  border-radius: 999px; border: 1px solid var(--dt-line); background: var(--dt-panel);
  font-size: 13px; transition: all .2s;
}
.dt-partners__item:hover { border-color: var(--dt-indigo); color: #fff; }
.dt-partners__name { color: var(--dt-heading); font-weight: 600; }
.dt-partners__region { color: var(--dt-muted); font-size: 11px; }

/* ---------- 联系 CTA ---------- */
.dt-cta { padding: 20px 0 84px; }
.dt-cta__box {
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
  padding: 40px 42px; border-radius: 26px; position: relative; overflow: hidden;
  background: linear-gradient(120deg, rgba(34, 211, 238, .14), rgba(99, 102, 241, .22)), #0b1332;
  border: 1px solid rgba(34, 211, 238, .3);
  box-shadow: 0 30px 70px rgba(2, 6, 23, .55);
}
.dt-cta__box::after {
  content: ""; position: absolute; right: -80px; top: -120px; width: 320px; height: 320px;
  border-radius: 50%; background: radial-gradient(circle, rgba(34, 211, 238, .28), transparent 62%);
  pointer-events: none;
}
.dt-cta__title { margin: 0 0 6px; font-size: 26px; font-weight: 700; color: var(--dt-heading); }
.dt-cta__lead { margin: 0; font-size: 14px; color: var(--dt-ink); }
.dt-cta__tel {
  position: relative; z-index: 1; font-size: 32px; font-weight: 800; letter-spacing: 1px;
  background: var(--dt-grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  white-space: nowrap;
}
.dt-cta__tel:hover { filter: brightness(1.15); }

/* ---------- 页脚 ---------- */
.dt-foot { background: #05091a; border-top: 1px solid var(--dt-line-2); padding-top: 48px; font-size: 13px; color: var(--dt-muted); }
.dt-foot__main { display: grid; grid-template-columns: 1.3fr .7fr 1fr; gap: 36px; max-width: 1200px; margin: 0 auto; padding: 0 24px 32px; }
.dt-foot__name {
  font-size: 20px; font-weight: 700; color: var(--dt-heading); margin-bottom: 8px;
  background: linear-gradient(100deg, #fff, #9adcff); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.dt-foot__desc { margin: 0 0 8px; }
.dt-foot__tel a { color: var(--dt-cyan); font-size: 20px; font-weight: 700; }
.dt-foot__tt { color: var(--dt-heading); font-weight: 600; margin-bottom: 12px; letter-spacing: 1px; }
.dt-foot__nav a { display: block; padding: 4px 0; color: var(--dt-muted); }
.dt-foot__nav a:hover, .dt-foot__info a:hover { color: var(--dt-cyan); }
.dt-foot__info p { margin: 0 0 6px; }
.dt-foot__info a { color: var(--dt-ink); }
.dt-foot__city { max-width: 1200px; margin: 0 auto; padding: 18px 24px; border-top: 1px solid var(--dt-line-2); }
.dt-foot__citytt { color: var(--dt-heading); font-weight: 600; margin-right: 8px; }
.dt-foot__citylist { display: inline; }
.dt-foot__cityitem { display: inline-block; margin: 0 12px 6px 0; color: var(--dt-muted); }
.dt-foot__cityitem:hover { color: var(--dt-cyan); }
.dt-foot__cityitem--fold { display: none; }
.dt-foot__citylist--open .dt-foot__cityitem--fold { display: inline-block; }
.dt-foot__morebtn {
  border: 1px solid var(--dt-line); background: none; color: var(--dt-ink);
  border-radius: 999px; padding: 3px 12px; cursor: pointer; font-size: 11px;
}
.dt-foot__nap { max-width: 1200px; margin: 0 auto; padding: 14px 24px; border-top: 1px solid var(--dt-line-2); color: #6f7c99; font-size: 11.5px; }
.dt-foot__nap p { margin: 0 0 4px; }
.dt-foot__copy {
  max-width: 1200px; margin: 0 auto; padding: 16px 24px 28px; border-top: 1px solid var(--dt-line-2);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; color: #6f7c99;
}
.dt-foot__copy a { color: #8b98b5; }
.dt-foot__copy a:hover { color: var(--dt-cyan); }

/* ---------- 移动拨号栏 ---------- */
.dt-dial {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 90; padding: 8px 12px;
  background: rgba(7, 11, 30, .94); border-top: 1px solid var(--dt-line);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.dt-dial__tel { display: block; text-align: center; padding: 12px; border-radius: 999px; background: var(--dt-grad); color: #04101f; font-weight: 700; }

/* ---------- 内页页头 ---------- */
.dt-phead {
  position: relative; padding: 58px 0 50px; overflow: hidden;
  border-bottom: 1px solid var(--dt-line-2);
  background:
    radial-gradient(700px 300px at 82% 0%, rgba(99, 102, 241, .26), transparent 66%),
    radial-gradient(540px 260px at 8% 100%, rgba(34, 211, 238, .13), transparent 62%);
}
.dt-crumb { margin: 0 0 12px; font-size: 12px; color: var(--dt-muted); letter-spacing: .5px; }
.dt-crumb a { color: var(--dt-ink); }
.dt-crumb a:hover { color: var(--dt-cyan); }
.dt-page-h1 { margin: 0; font-size: clamp(26px, 3.6vw, 38px); line-height: 1.3; font-weight: 800; color: var(--dt-heading); }
.dt-crumb--dark { margin: 0 0 22px; }

/* ---------- 列表 ---------- */
.dt-list { display: grid; gap: 14px; }
.dt-list__item {
  display: flex; gap: 20px; padding: 18px; border-radius: var(--dt-r-sm);
  border: 1px solid var(--dt-line-2); background: var(--dt-panel); transition: all .2s;
}
.dt-list__item:hover { border-color: rgba(34, 211, 238, .4); background: var(--dt-panel-2); }
.dt-list__thumb { flex: 0 0 170px; height: 112px; border-radius: 10px; overflow: hidden; background: #0d1738; }
.dt-list__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.dt-list__body { flex: 1 1 auto; min-width: 0; }
.dt-list__title { display: block; font-size: 17px; font-weight: 600; color: var(--dt-heading); margin-bottom: 6px; line-height: 1.5; }
.dt-list__desc {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  font-size: 13px; color: var(--dt-muted);
}
.dt-list__date { display: block; margin-top: 8px; font-size: 11.5px; color: #71809f; letter-spacing: .5px; }
.dt-region {
  font-style: normal; display: inline-block; font-size: 10.5px; letter-spacing: .5px;
  color: var(--dt-cyan); border: 1px solid rgba(34, 211, 238, .4); border-radius: 4px;
  padding: 0 5px; margin-right: 7px; vertical-align: 2px;
}

/* 分页（SubsiteRender::pagesHtml 输出固定 .pagination） */
.pagination { margin: 28px 0 0; text-align: center; font-size: 13px; }
.pagination a, .pagination span {
  display: inline-block; min-width: 34px; padding: 6px 10px; margin: 0 3px;
  border: 1px solid var(--dt-line); border-radius: 8px; color: var(--dt-ink);
}
.pagination a:hover { border-color: var(--dt-cyan); color: var(--dt-cyan); }
.pagination .current { background: var(--dt-grad); border-color: transparent; color: #04101f; font-weight: 700; }

/* ---------- 新闻详情（双栏） ---------- */
.dt-newsdetail { display: grid; grid-template-columns: 1fr 330px; gap: 30px; align-items: start; }
.dt-post {
  border-radius: var(--dt-r); border: 1px solid var(--dt-line-2);
  background: var(--dt-panel); padding: 28px;
}
.dt-post__meta { font-size: 12px; color: var(--dt-cyan); letter-spacing: 1px; margin-bottom: 16px; }
.dt-post__cover { display: block; width: 100%; border-radius: var(--dt-r-sm); margin-bottom: 20px; }
.dt-post__body { font-size: 15px; color: var(--dt-ink); line-height: 1.95; }
.dt-post__body p { margin: 0 0 14px; }
.dt-post__body img { border-radius: var(--dt-r-sm); }
.dt-post__body h2, .dt-post__body h3 { color: var(--dt-heading); }
.dt-post__back { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.dt-side {
  border-radius: var(--dt-r); border: 1px solid var(--dt-line-2);
  background: var(--dt-panel); padding: 22px;
}
.dt-side__tt { margin: 0 0 8px; font-size: 15px; font-weight: 700; color: var(--dt-heading); letter-spacing: 1px; }
.dt-side__item { display: block; padding: 10px 0; border-bottom: 1px solid var(--dt-line-2); }
.dt-side__item:last-of-type { border-bottom: 0; }
.dt-side__title { display: block; font-size: 13.5px; color: var(--dt-ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dt-side__item:hover .dt-side__title { color: var(--dt-cyan); }
.dt-side__date { display: block; font-size: 11px; color: #71809f; margin-top: 2px; }
.dt-side__empty { font-size: 13px; color: var(--dt-muted); }
.dt-side__more { display: inline-block; margin-top: 14px; font-size: 13px; }

/* ---------- 产品详情 ---------- */
.dt-prodhero { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
.dt-prodhero__media {
  padding: 14px; border-radius: var(--dt-r); border: 1px solid var(--dt-line);
  background: var(--dt-panel); box-shadow: var(--dt-shadow);
}
.dt-prodhero__media img { display: block; width: 100%; border-radius: var(--dt-r-sm); }
.dt-prodhero__kicker { display: inline-block; font-size: 10px; letter-spacing: 3px; color: var(--dt-cyan); font-weight: 700; margin-bottom: 10px; }
.dt-prodhero__h1 { margin: 0 0 12px; font-size: clamp(24px, 3vw, 34px); line-height: 1.35; font-weight: 800; color: var(--dt-heading); }
.dt-prodhero__desc { margin: 0 0 20px; font-size: 14px; color: var(--dt-muted); }
.dt-info { border-top: 1px solid var(--dt-line-2); margin-bottom: 22px; }
.dt-info__row { display: flex; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--dt-line-2); font-size: 13.5px; }
.dt-info__k { flex: 0 0 86px; color: var(--dt-muted); }
.dt-info__v { flex: 1 1 auto; color: var(--dt-ink); }
.dt-info__v a { color: var(--dt-cyan); }
.dt-prodhero__btns { display: flex; gap: 12px; flex-wrap: wrap; }
.dt-prodshow { display: grid; grid-template-columns: 1fr 330px; gap: 30px; align-items: start; margin-top: 36px; }
.dt-panel__tt { margin: 0 0 10px; font-size: 14px; font-weight: 700; color: var(--dt-heading); letter-spacing: 1px; }
.dt-panel p { margin: 0 0 6px; font-size: 13px; color: var(--dt-muted); }
.dt-sidepanel { margin-bottom: 16px; }
.dt-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.dt-chip {
  display: inline-block; padding: 5px 12px; border-radius: 999px; font-size: 12px;
  color: var(--dt-ink); background: rgba(255, 255, 255, .05); border: 1px solid var(--dt-line);
}

/* ---------- 联系页 ---------- */
.dt-contact { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.dt-card {
  border-radius: var(--dt-r); border: 1px solid var(--dt-line);
  background: var(--dt-panel); padding: 28px;
}
.dt-card__tt { margin: 0 0 14px; font-size: 18px; font-weight: 700; color: var(--dt-heading); }
.dt-card__row { display: flex; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--dt-line-2); font-size: 14px; }
.dt-card__row:last-child { border-bottom: 0; }
.dt-card__k { flex: 0 0 82px; color: var(--dt-muted); }
.dt-card__row a { color: var(--dt-cyan); }
.dt-steps { margin: 6px 0 18px 20px; padding: 0; font-size: 14px; color: var(--dt-ink); }
.dt-steps li { margin: 7px 0; }
.dt-center--left { text-align: left; margin-top: 18px; }

/* ---------- 辅助 ---------- */
.dt-about__logo { display: block; max-height: 70px; width: auto; margin: 0 0 20px; }
.dt-empty { color: var(--dt-muted); font-size: 14px; padding: 26px 0; }
.dt-title--sub { margin-top: 34px; }
.dt-panel--pad { padding: 30px; margin-top: 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .dt-nav { display: none; }
  .dt-burger { display: block; }
  .dt-head__in { gap: 12px; }
  .dt-head__tel { margin-left: auto; padding: 8px 14px; font-size: 12px; }
  .dt-head__tel span { display: none; }
  .dt-brand__title { max-width: 52vw; }
  .dt-brand__img { height: 34px; }
  .dt-hero__in { grid-template-columns: 1fr; gap: 36px; padding: 52px 24px 104px; }
  .dt-stat { margin-top: -56px; }
  .dt-about__in { grid-template-columns: 1fr; gap: 30px; }
  .dt-adv { grid-template-columns: 1fr; }
  .dt-duo, .dt-newsdetail, .dt-prodhero, .dt-prodshow, .dt-contact { grid-template-columns: 1fr; gap: 26px; }
  .dt-foot__main { grid-template-columns: 1fr; gap: 24px; }
  .dt-sec { padding: 54px 0; }
  .dt-title { font-size: 25px; }
  .dt-cta__box { padding: 30px 26px; }
  .dt-post { padding: 22px; }
}
@media (max-width: 640px) {
  .dt-head__tel { display: none; }
  .dt-brand__title { max-width: calc(100vw - 132px); }
  .dt-brand__name { font-size: 16px; }
  .dt-brand__meta { font-size: 10.5px; }
  .dt-brand__logo + .dt-brand__title { padding-left: 10px; }
  .dt-hero__h1 { font-size: 30px; }
  .dt-hero__lead { font-size: 14px; }
  .dt-hero__in { padding-bottom: 96px; }
  .dt-stat__bar { grid-template-columns: 1fr; }
  .dt-stat__item { border-right: 0; border-bottom: 1px solid var(--dt-line-2); }
  .dt-stat__item:last-child { border-bottom: 0; }
  .dt-stat__name { font-size: 17px; }
  .dt-prods, .dt-news, .dt-city__grid { grid-template-columns: 1fr; }
  .dt-list__item { flex-direction: column; gap: 12px; padding: 15px; }
  .dt-list__thumb { flex: none; width: 100%; height: 160px; }
  .dt-cta__tel { font-size: 26px; }
  .dt-cta__title { font-size: 21px; }
  .dt-page-h1 { font-size: 24px; }
  .dt-post { padding: 18px; }
  .dt-card, .dt-panel { padding: 22px 20px; }
  .dt-dial { display: block; }
  .dt-body { padding-bottom: 68px; }
}