/* ============================================================
   三石云 Sanshi Cloud — 全站样式 v2
   简洁浅色 · 品牌红 #fe5b5c · 响应式（1024 / 768 / 480）
   ============================================================ */

:root {
  --brand: #fe5b5c;
  --brand-dark: #e8464a;
  --brand-deep: #c93136;
  --brand-soft: #fff1f1;
  --ink: #1b1f2a;
  --ink-2: #4c5566;
  --ink-3: #8a93a6;
  --line: #e8ebf2;
  --line-2: #d9dee8;
  --bg: #ffffff;
  --bg-soft: #edf0f6;
  --bg-tint: #fdf3f3;
  --ok: #1aab6b;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 18px rgba(27, 31, 42, .07);
  --shadow: 0 12px 38px rgba(27, 31, 42, .10);
  --shadow-lg: 0 20px 56px rgba(27, 31, 42, .13);
  --header-h: 72px;
  --maxw: 1280px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  overflow-x: clip;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: color .2s; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
input, select, textarea { font-family: inherit; font-size: 15px; }

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

/* ---------- 通用 section ---------- */
.section { padding: 84px 0; }
.section--soft { background: var(--bg-soft); }
.section--tint { background: var(--bg-tint); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.section-head h2 { font-size: 34px; font-weight: 700; letter-spacing: .5px; line-height: 1.35; }
.section-head .en { display: block; margin-top: 6px; font-size: 13px; letter-spacing: 3px; text-transform: uppercase; color: var(--ink-3); font-weight: 500; }
.section-head p { margin-top: 14px; color: var(--ink-2); font-size: 16px; }
.section-head--left { text-align: left; margin-left: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 32px; border-radius: 999px;
  font-size: 16px; font-weight: 600; line-height: 1.4;
  transition: all .22s ease; white-space: nowrap;
}
.btn--primary { background: var(--brand); color: #fff; box-shadow: 0 8px 20px rgba(254, 91, 92, .32); }
.btn--primary:hover { background: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(254, 91, 92, .38); }
.btn--ghost { background: var(--bg-soft); color: var(--ink); }
.btn--ghost:hover { background: var(--brand-soft); color: var(--brand); }
.btn--ghost-light { background: rgba(255,255,255,.14); color: #fff; }
.btn--ghost-light:hover { background: rgba(255,255,255,.24); }
.btn--sm { padding: 9px 22px; font-size: 14px; }
.btn--lg { padding: 16px 42px; font-size: 17px; }
.btn--block { width: 100%; }

/* ---------- 徽章 / 标签 ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 12px; border-radius: 999px;
  font-size: 12.5px; font-weight: 600; line-height: 1.6;
}
.badge--hot { background: var(--brand-soft); color: var(--brand-deep); }
.badge--new { background: #e9f9f1; color: #0d8a56; }
.badge--outline { background: var(--bg-soft); color: var(--ink-2); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, box-shadow .25s;
}
.site-header.is-scrolled { box-shadow: 0 4px 18px rgba(27,31,42,.06); }
.header-inner { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; height: var(--header-h); gap: 24px; }
.logo { justify-self: start; }
.logo { display: flex; align-items: center; flex-shrink: 0; }
.logo img { height: 40px; width: auto; display: block; }

.main-nav { display: flex; align-items: center; gap: 14px; justify-self: center; }
.main-nav > li { position: relative; }
.main-nav > li > a {
  display: flex; align-items: center; gap: 5px;
  padding: 10px 14px; border-radius: 8px;
  font-size: 15.5px; font-weight: 500; color: var(--ink); white-space: nowrap;
}
.main-nav > li > a:hover, .main-nav > li.is-active > a { color: var(--brand); background: var(--brand-soft); }
.main-nav .caret { width: 10px; height: 10px; border-right: 1.8px solid currentColor; border-bottom: 1.8px solid currentColor; transform: rotate(45deg) translateY(-2px); transition: transform .2s; }

.dropdown {
  position: absolute; top: calc(100% + 10px); left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 14px;
  opacity: 0; visibility: hidden; transition: all .22s ease;
  min-width: 560px;
}
.main-nav > li:hover .dropdown, .main-nav > li:focus-within .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.main-nav > li:hover .caret { transform: rotate(225deg) translateY(-2px); }
.dropdown--narrow { min-width: 200px; }
.dropdown-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.dropdown-grid a {
  display: block; padding: 12px 14px; border-radius: var(--radius-sm);
  transition: background .18s;
}
.dropdown-grid a:hover { background: var(--bg-soft); }
.dropdown-grid a b { display: flex; align-items: center; gap: 8px; font-size: 15.5px; color: var(--ink); }
.dropdown-grid a p { font-size: 13px; color: var(--ink-3); line-height: 1.55; margin-top: 2px; }
.dropdown-list a { display: block; padding: 11px 14px; border-radius: var(--radius-sm); font-size: 15.5px; font-weight: 500; white-space: nowrap; }
.dropdown-list a:hover { background: var(--bg-soft); color: var(--brand); }
.dropdown-foot { margin-top: 10px; padding: 14px 14px 4px; display: flex; align-items: center; justify-content: space-between; background: var(--bg-soft); border-radius: var(--radius-sm); }
.dropdown-foot p { font-size: 13px; color: var(--ink-3); }

.header-cta { display: flex; align-items: center; gap: 18px; flex-shrink: 0; justify-self: end; }
.header-tel { display: inline-flex; align-items: center; gap: 7px; color: var(--brand); font-size: 17px; font-weight: 700; letter-spacing: .3px; text-decoration: none; }
.header-tel svg { width: 18px; height: 18px; }
.header-tel b { font-weight: inherit; }

.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 8px; position: relative; }
.nav-toggle span { position: absolute; left: 10px; right: 10px; height: 2px; background: var(--ink); border-radius: 2px; transition: all .25s; }
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-toggle.is-open span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

/* ---------- 面包屑 ---------- */
.breadcrumb { padding: 22px 0 0; font-size: 13.5px; color: var(--ink-3); }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb .sep { margin: 0 8px; color: var(--line-2); }

/* ---------- 页面 hero（内页顶部） ---------- */
.page-hero {
  background: linear-gradient(135deg, #fdf6f6 0%, #f6f8fb 60%, #eef2f8 100%);
  padding: 64px 0 56px; position: relative; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; right: -120px; top: -120px;
  width: 380px; height: 380px; border-radius: 50%;
  background: radial-gradient(circle, rgba(254,91,92,.10) 0%, transparent 70%);
}
.page-hero h1 { font-size: 36px; font-weight: 700; line-height: 1.35; }
.page-hero .sub { margin-top: 12px; font-size: 17px; color: var(--ink-2); max-width: 640px; }
.page-hero .tags { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 10px; }

/* ---------- 卡片 ---------- */
.card-grid { display: grid; gap: 24px; }
.card-grid--2 { grid-template-columns: repeat(2, 1fr); }
.card-grid--3 { grid-template-columns: repeat(3, 1fr); }
.card-grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: none; border-radius: var(--radius);
  padding: 30px 28px; transition: all .25s ease; position: relative;
  box-shadow: var(--shadow-sm);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card h3 { font-size: 19px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.card .desc { margin-top: 10px; font-size: 14.5px; color: var(--ink-2); line-height: 1.7; }
.card .card-link { margin-top: 16px; display: inline-flex; align-items: center; gap: 6px; font-size: 14.5px; font-weight: 600; color: var(--brand); }
.card .card-link .arrow { transition: transform .2s; }
.card:hover .card-link .arrow { transform: translateX(4px); }
.card--flat:hover { transform: none; box-shadow: var(--shadow-sm); }

/* 卡片顶部图标位（纯CSS图形，不用图片） */
.card-ico {
  width: 52px; height: 52px; border-radius: 14px; margin-bottom: 18px;
  display: flex; align-items: center; justify-content: center;
  background: var(--brand-soft); color: var(--brand);
}
.card-ico svg { width: 26px; height: 26px; }

/* ---------- 首屏 Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(254,91,92,.10), transparent 60%),
    radial-gradient(700px 380px at -10% 110%, rgba(47,111,219,.07), transparent 60%),
    linear-gradient(180deg, #fbfcfe 0%, #f4f6fa 100%);
  padding: 96px 0 88px;
}
.hero::before,
.hero::after {
  content: ""; position: absolute; border-radius: 50%;
  pointer-events: none; z-index: 0;
}
.hero::before {
  right: -120px; top: -80px;
  width: 420px; height: 420px;
  border: 60px solid rgba(254,91,92,.06);
  animation: heroFloat 8s ease-in-out infinite;
}
.hero::after {
  left: -100px; bottom: -120px;
  width: 360px; height: 360px;
  border: 50px solid rgba(47,111,219,.05);
  animation: heroFloat 10s ease-in-out infinite reverse;
}
@keyframes heroFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(3deg); }
}
.hero-inner { position: relative; z-index: 1; max-width: 780px; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border-radius: 999px;
  padding: 7px 18px; font-size: 14px; color: var(--ink-2); box-shadow: var(--shadow-sm);
}
.hero-kicker .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 3px rgba(26,171,107,.15); }
.hero h1 { margin-top: 26px; font-size: 52px; font-weight: 800; line-height: 1.28; letter-spacing: .5px; }
.hero h1 em { font-style: normal; color: var(--brand); }
.hero .lead { margin-top: 20px; font-size: 18.5px; color: var(--ink-2); line-height: 1.8; max-width: 640px; }
.hero-actions { margin-top: 38px; display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { margin-top: 62px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px 20px; max-width: 820px; }
.hero-stats .stat { padding-left: 0; }
.hero-stats .stat b { display: block; font-size: 30px; font-weight: 800; color: var(--ink); line-height: 1.2; }
.hero-stats .stat b i { font-style: normal; font-size: 16px; font-weight: 600; color: var(--ink-2); margin-left: 2px; }
.hero-stats .stat span { font-size: 13.5px; color: var(--ink-3); }

/* ---------- 产品宫格（首页） ---------- */
.prod-card { padding: 34px 30px; }
.prod-card .tag-row { position: absolute; top: 20px; right: 20px; display: flex; gap: 6px; }
.prod-card h3 a:hover { color: var(--brand); }

/* ---------- 算力专区（首页重点推荐位） ---------- */
.ai-panel {
  background: linear-gradient(135deg, #1d2230 0%, #2a3145 100%);
  border-radius: 22px; color: #eef1f7;
  padding: 56px 56px 48px; position: relative; overflow: hidden;
}
.ai-panel::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(500px 240px at 90% 0%, rgba(254,91,92,.22), transparent 65%),
    radial-gradient(400px 220px at 5% 100%, rgba(47,111,219,.18), transparent 65%);
  pointer-events: none;
}
.ai-panel > * { position: relative; }
.ai-panel .kicker { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; letter-spacing: 2px; color: #ffb3b4; font-weight: 600; }
.ai-panel h2 { font-size: 32px; font-weight: 800; margin-top: 14px; color: #fff; }
.ai-panel .sub { margin-top: 12px; color: #b8c0d4; max-width: 620px; }
.gpu-chips { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 34px; }
.gpu-chip {
  background: rgba(255,255,255,.08);
  border-radius: var(--radius-sm); padding: 18px 20px; backdrop-filter: blur(4px);
}
.gpu-chip b { display: block; font-size: 18px; color: #fff; }
.gpu-chip span { display: block; margin-top: 4px; font-size: 12.5px; color: #9aa3b8; }
.gpu-chip .mem { margin-top: 10px; font-size: 13px; color: #ff8f90; font-weight: 600; }
.ai-panel-actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 步骤条 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step { position: relative; padding-top: 8px; }
.step::before {
  counter-increment: step; content: "0" counter(step);
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--brand-soft); color: var(--brand);
  font-size: 16px; font-weight: 800;
}
.step::after { content: ""; position: absolute; top: 30px; left: 58px; right: -14px; height: 1.5px; background: var(--line-2); }
.step:last-child::after { display: none; }
.step h4 { margin-top: 16px; font-size: 17px; }
.step p { margin-top: 6px; font-size: 14px; color: var(--ink-2); }

/* ---------- 方案卡（横向图文） ---------- */
.sol-card {
  display: grid; grid-template-columns: 210px 1fr; overflow: hidden;
  background: #fff; border-radius: var(--radius);
  transition: all .25s; box-shadow: var(--shadow-sm);
}
.sol-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.sol-cover { display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 19px; letter-spacing: 3px; min-height: 150px; text-align: center; padding: 0 12px; background: linear-gradient(135deg, #fe5b5c, #ff8f63); }
.sol-body { padding: 24px 28px; display: flex; flex-direction: column; justify-content: center; }
.sol-body h3 { font-size: 18px; }
.sol-body p { margin-top: 8px; font-size: 14px; color: var(--ink-2); line-height: 1.6; flex: 1; }
.sol-body .sol-tags { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.sol-body .sol-tags span { font-size: 12px; background: var(--bg-soft); color: var(--ink-2); padding: 4px 11px; border-radius: 999px; }
.sol-list { display: grid; gap: 18px; max-width: 880px; margin: 0 auto; }
/* 双列横排：一行两张横向卡片 */
.sol-list--grid { grid-template-columns: 1fr 1fr; max-width: none; }
.sol-list--grid .sol-card { grid-template-columns: 180px 1fr; }
.sol-list--grid .sol-cover { min-height: 0; font-size: 17px; letter-spacing: 2px; }
@media (max-width: 1024px) {
  .sol-list--grid { grid-template-columns: 1fr; max-width: 880px; }
  .sol-list--grid .sol-card { grid-template-columns: 210px 1fr; }
}

/* ---------- 首页解决方案选项卡（深色联动面板，参考 AI 算力专区配色） ---------- */
.sol-tab-section {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #1d2230 0%, #2a3145 100%);
  color: #c7cdda;
}
.sol-tab-section::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(520px 240px at 92% 0%, rgba(254,91,92,.20), transparent 62%),
    radial-gradient(420px 220px at 4% 100%, rgba(47,111,219,.15), transparent 62%);
  pointer-events: none;
}
.sol-tab-section > .container { position: relative; }
.sol-tab-section .section-head h2 { color: #fff; }
.sol-tabs { display: grid; grid-template-columns: 200px 1fr; gap: 60px; align-items: start; }
.sol-tab-nav { display: flex; flex-direction: column; gap: 4px; }
.sol-tab-btn {
  background: none; border: 0; cursor: pointer; text-align: left;
  padding: 12px 0; font-size: 16px; font-family: inherit;
  color: #9aa3b8; transition: color .2s;
  border-bottom: 2px solid transparent; width: fit-content;
}
.sol-tab-btn:hover { color: #fff; }
.sol-tab-btn.active { color: var(--brand); font-weight: 600; border-bottom-color: var(--brand); }
.sol-tab-more { margin-top: 26px; font-size: 14px; color: #9aa3b8; display: inline-flex; align-items: center; gap: 6px; }
.sol-tab-more:hover { color: #fff; }
.sol-tab-panel { display: none; }
.sol-tab-panel.active { display: block; animation: solFade .3s ease; }
@keyframes solFade { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.sol-tab-panel h3 { color: #fff; font-size: 24px; font-weight: 700; }
.sol-tab-desc { margin-top: 16px; color: #b8c0d4; font-size: 15px; line-height: 1.9; max-width: 640px; }
.sol-tab-chips { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 10px; }
.sol-tab-chips span { background: rgba(255,255,255,.08); color: #d6dbe8; font-size: 13px; padding: 6px 14px; border-radius: 4px; }
.sol-tab-actions { margin-top: 30px; display: flex; gap: 16px; flex-wrap: wrap; }
.sol-tab-points { margin-top: 44px; }
.sol-tab-points-cap { display: block; color: #8a93a6; font-size: 14px; margin-bottom: 18px; }
.sol-tab-points-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.sol-point { display: flex; align-items: center; gap: 10px; color: #eef1f7; }
.sol-point svg { width: 22px; height: 22px; stroke: var(--brand); flex-shrink: 0; }
.sol-point b { font-size: 14.5px; font-weight: 500; }
@media (max-width: 1024px) {
  .sol-tabs { grid-template-columns: 1fr; gap: 30px; }
  .sol-tab-nav { flex-direction: row; flex-wrap: wrap; gap: 6px 22px; }
  .sol-tab-btn { padding: 8px 0; font-size: 15px; }
  .sol-tab-more { margin-top: 8px; }
  .sol-tab-points-row { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- 参数表 ---------- */
.spec-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.spec-table th, .spec-table td { padding: 15px 20px; text-align: left; font-size: 14.5px; }
.spec-table th { background: var(--brand); color: #fff; font-weight: 600; white-space: nowrap; }
.spec-table tbody tr:nth-child(even) { background: var(--bg-soft); }
.spec-table td b { color: var(--ink); }
.spec-table .hl { color: var(--brand); font-weight: 700; }
.table-note { margin-top: 12px; font-size: 13px; color: var(--ink-3); }

/* 价格占位 */
.price-tbd {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--brand-soft); color: var(--brand-deep);
  border-radius: 8px;
  padding: 5px 14px; font-size: 14px; font-weight: 600;
}

/* ---------- FAQ ---------- */
.faq-item { border-radius: var(--radius-sm); background: var(--bg-soft); margin-bottom: 14px; overflow: hidden; }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 24px; text-align: left; font-size: 16.5px; font-weight: 600; color: var(--ink);
}
.faq-q .faq-icon { flex-shrink: 0; width: 22px; height: 22px; position: relative; }
.faq-q .faq-icon::before, .faq-q .faq-icon::after {
  content: ""; position: absolute; background: var(--brand); border-radius: 2px; transition: transform .25s;
}
.faq-q .faq-icon::before { left: 3px; right: 3px; top: 10px; height: 2px; }
.faq-q .faq-icon::after { top: 3px; bottom: 3px; left: 10px; width: 2px; }
.faq-item.is-open .faq-icon::after { transform: scaleY(0); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-a-inner { padding: 0 24px 22px; color: var(--ink-2); font-size: 15px; }

/* ---------- 文章 ---------- */
.article-body { max-width: 900px; margin: 0 auto; }
.article-body h1 { font-size: 30px; line-height: 1.4; }
.article-meta { margin-top: 16px; display: flex; gap: 20px; font-size: 13.5px; color: var(--ink-3); padding-bottom: 24px; }
.article-content { padding-top: 32px; font-size: 16.5px; color: #2b3040; }
.article-content h2 { font-size: 23px; margin: 40px 0 16px; line-height: 1.4; }
.article-content h3 { font-size: 19px; margin: 32px 0 12px; }
.article-content p { margin-bottom: 16px; }
.article-content strong { color: var(--ink); background: linear-gradient(transparent 62%, rgba(254,91,92,.18) 0); }
.article-content ul { margin: 0 0 16px 4px; }
.article-content ul li { position: relative; padding-left: 20px; margin-bottom: 8px; }
.article-content ul li::before { content: ""; position: absolute; left: 2px; top: .72em; width: 7px; height: 7px; border-radius: 50%; background: var(--brand); }

/* 新闻列表 */
.news-item {
  display: grid; grid-template-columns: 1fr auto; gap: 8px 24px; align-items: center;
  padding: 18px 20px; background: #fff; border-radius: var(--radius-sm); margin-bottom: 14px; box-shadow: var(--shadow-sm); transition: all .2s;
}
.news-item:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.news-item h3 { grid-column: 1; grid-row: 1; font-size: 17.5px; font-weight: 600; }
.news-item h3 a:hover { color: var(--brand); }
.news-item p { grid-column: 1; grid-row: 2; font-size: 14px; color: var(--ink-3); display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.news-item time { grid-column: 2; grid-row: 1 / span 2; font-size: 14px; color: var(--ink-3); white-space: nowrap; }

/* 分页 */
.pager { display: flex; justify-content: center; align-items: center; gap: 5px; margin-top: 44px; flex-wrap: wrap; font-size: 15px; }
.pager a, .pager span {
  min-width: 40px; height: 40px; padding: 0 12px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%; color: var(--ink-2); background: transparent;
  transition: .2s; text-decoration: none;
}
.pager a:hover { background: #f2f4f8; color: var(--ink); }
.pager .is-current { background: var(--brand); color: #fff; font-weight: 600; cursor: default; box-shadow: 0 6px 16px rgba(254,91,92,.28); }
.pager .is-disabled { color: #d2d7e0; cursor: default; pointer-events: none; }
.pager-prev, .pager-next { font-size: 20px; color: var(--ink-3); }

/* 迅睿分页 {$pages_rs} 输出的是 ul/li 结构，套用本站胶囊样式 */
.pager ul { display: flex; justify-content: center; align-items: center; gap: 5px; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }
.pager li { list-style: none; }
.pager li a, .pager li span {
  min-width: 40px; height: 40px; padding: 0 12px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%; color: var(--ink-2); background: transparent;
  transition: .2s; text-decoration: none;
}
.pager li a:hover { background: #f2f4f8; color: var(--ink); }
.pager li.active a, .pager li.active span { background: var(--brand); color: #fff; font-weight: 600; cursor: default; box-shadow: 0 6px 16px rgba(254,91,92,.28); }
.pager li.disabled a, .pager li.disabled span { color: #d2d7e0; cursor: default; pointer-events: none; }

/* 文章上下篇 */
.article-prevnext { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 10px; font-size: 14.5px; color: var(--ink-3); }
.article-prevnext p { margin: 0; }
.article-prevnext a { color: var(--ink-2); transition: .2s; }
.article-prevnext a:hover { color: var(--brand); }

/* 全球网络地图 */
.network-map { text-align: center; }
.network-map img { margin: 0 auto; max-width: 100%; border-radius: 12px; }

/* ---------- 联系/表单 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; align-items: start; }
.contact-card { background: #fff; border-radius: var(--radius); padding: 48px 56px; box-shadow: var(--shadow); max-width: 920px; margin: 0 auto; }
.contact-card-head { margin-bottom: 36px; }
.contact-card-head h3 { font-size: 24px; font-weight: 700; color: var(--ink); }
.contact-card-head p { margin-top: 8px; font-size: 15px; color: var(--ink-2); }
.contact-card-body { display: grid; grid-template-columns: 1.1fr auto; gap: 56px; align-items: start; }
.contact-card-main { display: flex; flex-direction: column; gap: 24px; }
.contact-phone { display: flex; align-items: center; gap: 16px; padding: 22px 24px; background: rgba(254,91,92,.06); border-radius: 14px; }
.c-row { display: flex; align-items: flex-start; gap: 16px; padding: 0 6px; }
.c-ico { width: 44px; height: 44px; border-radius: 10px; background: rgba(254,91,92,.08); color: var(--brand); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.c-ico svg { width: 22px; height: 22px; }
.c-label { display: block; font-size: 13.5px; color: var(--ink-3); margin-bottom: 2px; }
.c-num { display: block; font-size: 26px; font-weight: 800; color: var(--brand); text-decoration: none; letter-spacing: .5px; }
.c-row p { font-size: 14.5px; color: var(--ink-2); }
.contact-qr { text-align: center; background: rgba(254,91,92,.04); padding: 28px; border-radius: 16px; }
.contact-qr img { width: 150px; border-radius: 10px; display: block; margin: 0 auto; }
.contact-qr p { font-size: 13px; color: var(--ink-3); margin-top: 12px; }
.form-card { background: #fff; border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow-sm); }
@media (max-width: 720px) { .contact-card { padding: 28px; } .contact-card-body { grid-template-columns: 1fr; gap: 32px; } .contact-qr { padding: 24px; } .c-num { font-size: 22px; } }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field--full { grid-column: 1 / -1; }
.form-field label { font-size: 14px; font-weight: 600; }
.form-field label i { color: var(--brand); font-style: normal; }
.form-field input, .form-field select, .form-field textarea {
  border: 1.5px solid var(--line-2); border-radius: var(--radius-sm);
  padding: 12px 14px; outline: none; transition: border-color .2s; background: #fff;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { border-color: var(--brand); }
.form-field textarea { min-height: 110px; resize: vertical; }
.form-tip { grid-column: 1 / -1; font-size: 12.5px; color: var(--ink-3); }

/* ---------- 转化条 ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--brand) 0%, #ff7e63 100%);
  border-radius: 22px; color: #fff; padding: 52px 56px;
  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: -60px; bottom: -80px;
  width: 260px; height: 260px; border-radius: 50%;
  border: 40px solid rgba(255,255,255,.10);
}
.cta-band h2 { font-size: 28px; font-weight: 800; }
.cta-band p { margin-top: 8px; opacity: .92; }
.cta-band .cta-right { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.cta-band .tel-big { font-size: 30px; font-weight: 800; letter-spacing: 1px; }
.cta-band .tel-cap { font-size: 13px; opacity: .85; display: block; }

/* ---------- 页脚 ---------- */
.site-footer { background: #171b25; color: #a7aebf; margin-top: 90px; font-size: 14.5px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1.1fr; gap: 40px; padding: 64px 0 48px; }
.footer-brand .logo img { height: 38px; }
.footer-brand p { margin-top: 18px; line-height: 1.9; font-size: 14px; }
.footer-brand .footer-tel { margin-top: 16px; color: #fff; font-size: 20px; font-weight: 700; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; font-weight: 600; }
.footer-col li { margin-bottom: 11px; }
.footer-col a:hover { color: #fff; }
.footer-col .ewm { width: 118px; height: 118px; border-radius: 10px; background: #fff; padding: 6px; }
.footer-col .ewm-cap { margin-top: 8px; font-size: 12.5px; }
.footer-bottom { padding: 22px 0; font-size: 13px; color: #6d7589; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,.06); }
.footer-bottom a:hover { color: #fff; }

/* 友情链接 */
.footer-friends { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 26px; padding: 16px 0; font-size: 12.5px; color: #565d6e; }
.footer-friends-label { color: #565d6e; font-weight: 400; }
.footer-friends a { color: #565d6e; transition: color .2s; }
.footer-friends a:hover { color: var(--brand); }

/* ---------- 返回顶部 ---------- */
.backtop {
  position: fixed; right: 26px; bottom: 90px; z-index: 90;
  width: 46px; height: 46px; border-radius: 12px;
  background: var(--brand); box-shadow: 0 8px 20px rgba(254, 91, 92, .32);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: all .25s; color: #fff;
}
.backtop.is-show { opacity: 1; visibility: visible; }
.backtop:hover { background: var(--brand-dark); color: #fff; }

/* ---------- 优势条（内页复用） ---------- */
.feature-list li { display: flex; gap: 14px; margin-bottom: 16px; align-items: flex-start; }
.feature-list .f-ico { width: 26px; height: 26px; border-radius: 50%; background: var(--brand-soft); color: var(--brand); display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 3px; }
.feature-list b { display: block; font-size: 16.5px; }
.feature-list p { font-size: 14.5px; color: var(--ink-2); }

/* 两栏布局（内页正文+侧栏） */
.page-layout { display: grid; grid-template-columns: 1fr 340px; gap: 44px; align-items: start; padding: 44px 0 20px; }
.page-layout--single { grid-template-columns: 1fr; }
.side-card { background: #fff; border-radius: var(--radius); padding: 28px; margin-bottom: 22px; box-shadow: var(--shadow-sm); }
.side-card h3 { font-size: 17px; margin-bottom: 16px; }
.side-card li { padding: 9px 0; font-size: 15px; }
.side-card li:last-child { padding-bottom: 0; }
.side-card li a:hover { color: var(--brand); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1280px) {
  .header-tel { display: none; }
}
@media (max-width: 1024px) {
  .hero h1 { font-size: 42px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 28px 0; }
  .card-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step::after { display: none; }
  .gpu-chips { grid-template-columns: repeat(2, 1fr); }
  .ai-panel { padding: 40px 36px; }
  .page-layout { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .header-tel { display: none; }
}

@media (max-width: 860px) {
  .site-header { overflow-x: clip; }
  .header-inner { display: flex; }
  .header-cta { margin-left: auto; }
  .nav-toggle { display: block; }
  .main-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    width: 100%; justify-self: auto;
    height: calc(100vh - var(--header-h)); max-height: calc(100vh - var(--header-h));
    background: #fff; flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px 20px 40px; overflow-y: auto;
    box-shadow: 0 20px 40px rgba(27,31,42,.12);
    transform: translateX(100%); transition: transform .28s ease; z-index: 99;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav > li > a { padding: 16px 8px; font-size: 17px; border-radius: 0; }
  .dropdown {
    position: static; transform: none; opacity: 1; visibility: visible;
    box-shadow: none; border: 0; padding: 4px 8px 14px; min-width: 0; display: none;
  }
  .main-nav > li.is-drop .dropdown { display: block; }
  .main-nav > li:hover .dropdown { transform: none; }
  .dropdown-grid { grid-template-columns: 1fr; }
  .dropdown-foot { display: none; }
  .main-nav .caret { margin-left: auto; }
  .main-nav > li:hover .caret { transform: rotate(45deg) translateY(-2px); }
  .header-cta .btn { display: none; }

  .section { padding: 60px 0; }
  .section-head h2 { font-size: 27px; }
  .hero { padding: 64px 0 60px; }
  .hero h1 { font-size: 33px; }
  .hero .lead { font-size: 16.5px; }
  .hero-stats .stat b { font-size: 24px; }
  .page-hero h1 { font-size: 28px; }
  .page-hero { padding: 44px 0 40px; }
  .ai-panel { padding: 34px 26px; border-radius: 16px; }
  .ai-panel h2 { font-size: 25px; }
  .cta-band { padding: 38px 30px; }
  .cta-band h2 { font-size: 23px; }
}

@media (max-width: 640px) {
  .container { padding: 0 18px; }
  body { font-size: 15px; }
  .hero h1 { font-size: 29px; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .card-grid--2, .card-grid--3, .card-grid--4 { grid-template-columns: 1fr; }
  .sol-card { grid-template-columns: 1fr; }
  .sol-list--grid .sol-card { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .gpu-chips { grid-template-columns: 1fr 1fr; gap: 10px; }
  .gpu-chip { padding: 14px; }
  .gpu-chip b { font-size: 15px; }
  .sol-cover { min-height: 90px; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; }
  .news-item { grid-template-columns: 1fr; }
  .news-item time { grid-row: auto; }
  .spec-table { display: block; overflow-x: auto; }
  .article-body h1 { font-size: 24px; }
  .backtop { right: 16px; }
}