/* ============================================================
   沐杉云官网 goclaude.top
   设计系统：深青主色 + 琥珀强调色，8px 栅格，无外部依赖
   目录：
     01 变量与重置
     02 排版与通用工具
     03 按钮与链接
     04 页头 / Mega Menu / 抽屉
     05 面包屑 / 侧边栏 / TOC / 分页
     06 首页 Hero 与模块
     07 内容块组件
     08 案例 / 博客 / 联系 / 站点地图 / 404
     09 页脚 / CTA / 搜索
     10 响应式与动效偏好
   ============================================================ */

/* ---------- 01 变量与重置 ---------- */
:root {
  --c-ink: #0b1d26;
  --c-ink-2: #123440;
  /* 品牌主色取自标识左侧深绿，强调色取自右侧青 */
  --c-brand: #0e8b5c;
  --c-brand-d: #0a6b44;
  --c-brand-l: #17b478;
  --c-brand-soft: #e6f6ee;
  --c-teal: #13a9b4;
  --c-teal-l: #2ecb8c;
  --c-accent: #13a9b4;
  --c-accent-d: #0d8290;
  --c-accent-soft: #e4f6f8;
  --c-text: #1b2b33;
  --c-text-2: #55666f;
  --c-text-3: #8395a0;
  --c-line: #e2e9ec;
  --c-line-2: #eef3f5;
  --c-bg: #ffffff;
  --c-bg-alt: #f6f9fa;
  --c-bg-dark: #0b1d26;
  --c-ok: #17916b;
  --c-warn: #c98a10;
  --c-err: #c8442f;

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-pill: 999px;

  --sh-1: 0 1px 2px rgba(11, 29, 38, .06), 0 2px 8px rgba(11, 29, 38, .05);
  --sh-2: 0 4px 12px rgba(11, 29, 38, .07), 0 12px 32px rgba(11, 29, 38, .07);
  --sh-3: 0 12px 28px rgba(11, 29, 38, .1), 0 32px 64px rgba(11, 29, 38, .1);

  --wrap: 1240px;
  --wrap-narrow: 820px;
  --header-h: 68px;
  --topbar-h: 38px;

  --ff: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB",
        system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --ff-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--ff);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}

body.no-scroll { overflow: hidden; }

img, svg { max-width: 100%; height: auto; display: block; }
svg { fill: currentColor; }
a { color: var(--c-brand); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--c-brand-l); }
button { font: inherit; color: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.32; font-weight: 700; color: var(--c-ink); letter-spacing: -.01em; }
p { margin: 0; }

:focus-visible {
  outline: 2px solid var(--c-brand-l);
  outline-offset: 2px;
  border-radius: 3px;
}

::selection { background: var(--c-brand); color: #fff; }

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  padding: 10px 18px; background: var(--c-ink); color: #fff;
  border-radius: var(--r-md); transition: top .2s var(--ease);
}
.skip-link:focus { top: 12px; color: #fff; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- 02 排版与通用工具 ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: var(--wrap-narrow); }

.section { padding: 88px 0; }
.section-alt { background: var(--c-bg-alt); }
.section-dark { background: var(--c-bg-dark); color: #d5e2e7; }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-faq { padding-bottom: 96px; }

.section-head { max-width: 760px; margin-bottom: 48px; }
.section-head-light .section-lead { color: #a9bfc8; }
.section-eyebrow {
  font-size: 13px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--c-brand); margin-bottom: 12px;
}
.section-dark .section-eyebrow { color: var(--c-accent); }
.section-head h2 { font-size: clamp(26px, 3vw, 36px); margin-bottom: 14px; }
.section-lead { font-size: 17px; color: var(--c-text-2); }
.section-more { margin-top: 40px; }

.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.icon { width: 20px; height: 20px; flex: 0 0 auto; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 600; font-size: 15px; color: var(--c-brand);
}
.link-arrow span { transition: transform .22s var(--ease); }
.link-arrow:hover span { transform: translateX(4px); }
.link-arrow-light { color: var(--c-accent); }

/* ---------- 03 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border: 1px solid transparent; border-radius: var(--r-md);
  font-size: 15px; font-weight: 600; line-height: 1.4; cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease),
              border-color .2s var(--ease), transform .15s var(--ease), box-shadow .2s var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-lg { padding: 15px 32px; font-size: 16px; }
.btn-block { width: 100%; }

.btn-primary { background: var(--c-brand); color: #fff; box-shadow: 0 6px 18px rgba(13, 110, 122, .24); }
.btn-primary:hover { background: var(--c-brand-d); color: #fff; box-shadow: 0 10px 24px rgba(13, 110, 122, .3); }

.btn-outline { border-color: var(--c-brand); color: var(--c-brand); background: transparent; }
.btn-outline:hover { background: var(--c-brand-soft); color: var(--c-brand-d); }

.btn-ghost { border-color: rgba(255, 255, 255, .38); color: #fff; background: rgba(255, 255, 255, .06); }
.btn-ghost:hover { background: rgba(255, 255, 255, .16); color: #fff; }
.page-404 .btn-ghost, .section .btn-ghost { border-color: var(--c-line); color: var(--c-text); background: #fff; }
.page-404 .btn-ghost:hover, .section .btn-ghost:hover { background: var(--c-bg-alt); color: var(--c-ink); }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border: 1px solid var(--c-line);
  border-radius: var(--r-md); background: #fff; color: var(--c-text-2);
  transition: all .2s var(--ease);
}
.icon-btn:hover { border-color: var(--c-brand); color: var(--c-brand); }

.chip {
  padding: 7px 16px; border: 1px solid var(--c-line); border-radius: var(--r-pill);
  background: #fff; font-size: 14px; color: var(--c-text-2); transition: all .2s var(--ease);
}
.chip:hover { border-color: var(--c-brand-l); color: var(--c-brand); }
.chip.is-active { background: var(--c-brand); border-color: var(--c-brand); color: #fff; }

/* ---------- 04 页头 / Mega Menu / 抽屉 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow .25s var(--ease);
}
.site-header.is-stuck { box-shadow: var(--sh-1); }

.topbar {
  height: var(--topbar-h); background: var(--c-ink); color: #9fb6bf; font-size: 13px;
}
.topbar-inner { display: flex; align-items: center; gap: 16px; height: 100%; }
.topbar-item { display: inline-flex; align-items: center; gap: 6px; }
.topbar-item svg { width: 14px; height: 14px; }
.topbar-item a { color: #fff; font-weight: 600; }
.topbar-sep { width: 1px; height: 14px; background: rgba(255, 255, 255, .2); }
.topbar-links { margin-left: auto; display: flex; gap: 20px; }
.topbar-links a { color: #9fb6bf; }
.topbar-links a:hover { color: #fff; }

.nav-inner { display: flex; align-items: center; gap: 28px; height: var(--header-h); }
.logo { flex: 0 0 auto; display: block; }
.logo img { width: 164px; height: auto; }
@media (max-width: 767px) { .logo img { width: 148px; } }

.mainnav { margin-left: 8px; }
.mainnav-list { display: flex; align-items: center; gap: 2px; }
.mainnav-item > a {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 0 14px; height: var(--header-h); line-height: var(--header-h);
  font-size: 15px; font-weight: 600; color: var(--c-text);
  position: relative;
}
.mainnav-item > a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 0; height: 2px;
  background: var(--c-brand); transform: scaleX(0); transform-origin: left;
  transition: transform .24s var(--ease);
}
.mainnav-item:hover > a, .mainnav-item.is-current > a { color: var(--c-brand); }
.mainnav-item:hover > a::after, .mainnav-item.is-current > a::after { transform: scaleX(1); }
.caret { width: 16px; height: 16px; opacity: .55; transition: transform .22s var(--ease); }
.mainnav-item.is-open .caret { transform: rotate(180deg); }

.megamenu {
  position: absolute; left: 0; right: 0; top: calc(var(--topbar-h) + var(--header-h));
  background: #fff; border-top: 1px solid var(--c-line);
  box-shadow: var(--sh-3);
  opacity: 0; transform: translateY(-8px); pointer-events: none;
  transition: opacity .22s var(--ease), transform .22s var(--ease);
}
.megamenu[hidden] { display: none; }
.mainnav-item.is-open .megamenu { opacity: 1; transform: translateY(0); pointer-events: auto; }
.megamenu-inner {
  display: grid; grid-template-columns: 260px 1fr; gap: 44px;
  padding: 36px 24px 40px;
}
.megamenu-intro { padding-right: 28px; border-right: 1px solid var(--c-line-2); }
.megamenu-eyebrow {
  font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--c-accent); font-weight: 700; margin-bottom: 8px;
}
.megamenu-intro h2 { font-size: 20px; margin-bottom: 10px; }
.megamenu-intro p { font-size: 14px; color: var(--c-text-2); margin-bottom: 16px; }
.megamenu-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 28px 32px; }
.megamenu-col-title {
  display: flex; align-items: center; gap: 8px;
  font-size: 15px; font-weight: 700; color: var(--c-ink); margin-bottom: 6px;
}
.megamenu-col-title:hover { color: var(--c-brand); }
.mm-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: var(--r-sm);
  background: var(--c-brand-soft); color: var(--c-brand);
}
.mm-icon svg { width: 16px; height: 16px; }
.megamenu-col-desc { font-size: 13px; color: var(--c-text-3); margin-bottom: 10px; line-height: 1.6; }
.megamenu-sub li + li { margin-top: 2px; }
.megamenu-sub a { font-size: 14px; color: var(--c-text-2); display: inline-block; padding: 2px 0; }
.megamenu-sub a:hover { color: var(--c-brand); }
.megamenu-sub .more { color: var(--c-accent); font-weight: 600; }

.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.burger {
  display: none; flex-direction: column; gap: 5px; justify-content: center;
  width: 40px; height: 38px; padding: 0 8px;
  border: 1px solid var(--c-line); border-radius: var(--r-md); background: #fff;
}
.burger span { display: block; height: 2px; background: var(--c-ink); border-radius: 2px; transition: all .22s var(--ease); }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.drawer {
  position: fixed; inset: 0 0 0 auto; z-index: 120;
  width: min(400px, 88vw); background: #fff;
  display: flex; flex-direction: column;
  transform: translateX(100%); transition: transform .3s var(--ease);
  box-shadow: var(--sh-3);
}
.drawer[hidden] { display: none; }
.drawer.is-open { transform: translateX(0); }
.drawer-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--c-line);
}
.drawer-nav { flex: 1; overflow-y: auto; padding: 8px 4px 20px; }
.drawer-row { display: flex; align-items: center; justify-content: space-between; }
.drawer-row > a {
  flex: 1; padding: 13px 16px; font-size: 16px; font-weight: 600; color: var(--c-ink);
}
.drawer-row > button {
  width: 44px; height: 44px; border: 0; background: none; color: var(--c-text-3);
  display: flex; align-items: center; justify-content: center;
}
.drawer-row > button svg { width: 22px; height: 22px; transition: transform .22s var(--ease); }
.drawer-row > button[aria-expanded="true"] svg { transform: rotate(180deg); }
.drawer-group + .drawer-group { border-top: 1px solid var(--c-line-2); }
.drawer-sub { padding-left: 14px; border-left: 2px solid var(--c-brand-soft); margin: 0 0 8px 16px; }
.drawer-sub[hidden] { display: none; }
.drawer-sub .drawer-row > a { font-size: 15px; font-weight: 500; color: var(--c-text-2); padding: 10px 12px; }
.drawer-sub-3 a { font-size: 14px; color: var(--c-text-3); display: block; padding: 8px 12px; }
.drawer-foot { padding: 18px 20px 24px; border-top: 1px solid var(--c-line); }
.drawer-tel { display: block; text-align: center; margin-top: 12px; font-weight: 700; font-size: 17px; }

.scrim {
  position: fixed; inset: 0; z-index: 110;
  background: rgba(11, 29, 38, .48); backdrop-filter: blur(2px);
  opacity: 0; transition: opacity .28s var(--ease);
}
.scrim[hidden] { display: none; }
.scrim.is-on { opacity: 1; }

/* ---------- 05 面包屑 / 侧边栏 / TOC / 分页 ---------- */
.breadcrumb { background: var(--c-bg-alt); border-bottom: 1px solid var(--c-line-2); font-size: 13px; }
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 13px 0; }
.breadcrumb li { display: flex; align-items: center; gap: 8px; color: var(--c-text-3); }
.breadcrumb li + li::before { content: "/"; color: var(--c-line); }
.breadcrumb a { color: var(--c-text-2); }
.breadcrumb a:hover { color: var(--c-brand); }
.breadcrumb [aria-current="page"] { color: var(--c-ink); font-weight: 600; }

.layout-with-side {
  display: grid; grid-template-columns: 268px minmax(0, 1fr); gap: 56px;
  padding-top: 56px; padding-bottom: 72px; align-items: start;
}
.sidenav { position: sticky; top: calc(var(--header-h) + 24px); }
.sidenav-title { font-size: 15px; font-weight: 700; padding-bottom: 12px; border-bottom: 1px solid var(--c-line); margin-bottom: 12px; }
.sidenav-title a { color: var(--c-ink); }
.sidenav-list > li > a {
  display: block; padding: 9px 12px; border-radius: var(--r-sm);
  font-size: 15px; color: var(--c-text-2); font-weight: 500;
}
.sidenav-list > li > a:hover { background: var(--c-bg-alt); color: var(--c-brand); }
.sidenav a.is-active {
  background: var(--c-brand-soft); color: var(--c-brand-d); font-weight: 700;
  box-shadow: inset 2px 0 0 var(--c-brand);
}
.sidenav-sub { margin: 2px 0 6px 12px; padding-left: 12px; border-left: 1px solid var(--c-line); }
.sidenav-sub[hidden] { display: none; }
.sidenav-sub a { display: block; padding: 7px 10px; font-size: 14px; color: var(--c-text-3); border-radius: var(--r-sm); }
.sidenav-sub a:hover { color: var(--c-brand); background: var(--c-bg-alt); }
.sidenav-card {
  margin-top: 28px; padding: 20px; border: 1px solid var(--c-line);
  border-radius: var(--r-lg); background: linear-gradient(160deg, var(--c-brand-soft), #fff);
}
.sidenav-card-title { font-weight: 700; font-size: 15px; margin-bottom: 6px; color: var(--c-ink); }
.sidenav-card-text { font-size: 13px; color: var(--c-text-2); margin-bottom: 14px; }

.toc {
  padding: 20px 24px; margin-bottom: 40px;
  background: var(--c-bg-alt); border: 1px solid var(--c-line-2); border-radius: var(--r-lg);
}
.toc-title { font-size: 13px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--c-text-3); margin-bottom: 10px; }
.toc ol { counter-reset: toc; columns: 2; column-gap: 32px; }
.toc li { counter-increment: toc; break-inside: avoid; }
.toc li a { display: block; padding: 5px 0; font-size: 14.5px; color: var(--c-text-2); }
.toc li a::before { content: counter(toc, decimal-leading-zero) "  "; color: var(--c-text-3); font-family: var(--ff-mono); font-size: 12px; }
.toc li a:hover { color: var(--c-brand); }
.toc a.is-active { color: var(--c-brand); font-weight: 700; }

.pager { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 56px; }
.pager-item {
  padding: 18px 22px; border: 1px solid var(--c-line); border-radius: var(--r-lg);
  transition: all .22s var(--ease); background: #fff;
}
.pager-item:hover { border-color: var(--c-brand); box-shadow: var(--sh-1); transform: translateY(-2px); }
.pager-empty { border: 0; background: none; }
.pager-dir { display: block; font-size: 12px; color: var(--c-text-3); margin-bottom: 4px; }
.pager-title { font-weight: 600; color: var(--c-ink); }
.pager-next { text-align: right; }

.to-top {
  position: fixed; right: 24px; bottom: 28px; z-index: 60;
  width: 46px; height: 46px; border: 1px solid var(--c-line); border-radius: 50%;
  background: #fff; color: var(--c-brand); box-shadow: var(--sh-2);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transform: translateY(10px);
  transition: all .26s var(--ease);
}
.to-top svg { width: 22px; height: 22px; }
.to-top.is-on { opacity: 1; pointer-events: auto; transform: translateY(0); }

/* ---------- 06 首页 Hero 与模块 ---------- */
.hero { position: relative; overflow: hidden; background: var(--c-bg-dark); color: #cfdde3; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5; }
.orb-1 { width: 460px; height: 460px; background: #0e8b5c; top: -140px; left: -80px; }
.orb-2 { width: 380px; height: 380px; background: #13a9b4; bottom: -160px; right: 8%; opacity: .34; }
.orb-3 { width: 300px; height: 300px; background: #2ecb8c; top: 30%; right: 34%; opacity: .26; }
.grid-lines {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 40%, transparent 100%);
}
.hero-inner {
  position: relative; display: grid; grid-template-columns: 1.08fr .92fr;
  gap: 56px; align-items: center; padding: 92px 24px 104px;
}
.hero-text h1 {
  font-size: clamp(32px, 4.4vw, 54px); line-height: 1.18; color: #fff;
  letter-spacing: -.02em; margin-bottom: 22px;
}
.hero-text h1 em {
  display: block; font-style: normal;
  background: linear-gradient(96deg, #2ecb8c 0%, #39c8e2 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { font-size: 17.5px; line-height: 1.85; color: #a9c3cc; max-width: 560px; margin-bottom: 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 34px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 10px 26px; font-size: 14px; color: #93aeb8; }
.hero-trust li { display: flex; align-items: center; gap: 7px; }
.hero-trust svg { width: 16px; height: 16px; color: #2ecb8c; }

/* Hero 右侧：服务范围概览 */
.hero-visual { position: relative; }
.cap-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px;
}
.cap-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 18px 18px 16px;
  border: 1px solid rgba(255, 255, 255, .13); border-radius: var(--r-md);
  background: rgba(255, 255, 255, .05);
  transition: background .22s var(--ease), border-color .22s var(--ease), transform .22s var(--ease);
}
.cap-item:hover {
  background: rgba(255, 255, 255, .09);
  border-color: rgba(46, 203, 140, .45);
  transform: translateY(-2px);
}
.cap-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; flex: 0 0 auto;
  border-radius: var(--r-sm);
  background: rgba(46, 203, 140, .14); color: #2ecb8c;
}
.cap-icon svg { width: 19px; height: 19px; }
.cap-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 3px; }
.cap-text { font-size: 13px; line-height: 1.6; color: #93aeb8; }

.stat-band { padding: 40px 0; background: var(--c-ink-2); }
.stat-band .metric-value { color: #fff; }
.stat-band .metric-label { color: #cfe0e6; }
.stat-band .metric-note { color: #7e9aa5; }

.solution-card, .nav-card, .post-card, .case-card, .feature-card {
  display: block; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--r-lg); padding: 30px 28px;
  transition: transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
}
.solution-card:hover, .nav-card:hover, .post-card:hover, .feature-card:hover {
  transform: translateY(-4px); box-shadow: var(--sh-2); border-color: var(--c-brand-l);
}
.solution-icon, .nav-card-icon, .feature-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; margin-bottom: 18px;
  border-radius: var(--r-md); background: var(--c-brand-soft); color: var(--c-brand);
}
.solution-icon svg, .nav-card-icon svg, .feature-icon svg { width: 24px; height: 24px; }
.solution-card h3, .nav-card h3, .feature-card h3 { font-size: 19px; margin-bottom: 10px; }
.solution-card p, .nav-card p, .feature-card p { font-size: 15px; color: var(--c-text-2); margin-bottom: 16px; }
.solution-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.solution-tags li {
  padding: 3px 11px; border-radius: var(--r-sm); background: var(--c-bg-alt);
  font-size: 12.5px; color: var(--c-text-2);
}
.nav-card { position: relative; }
.nav-card-sm { padding: 24px 22px; }
.nav-card-sm h3 { font-size: 17px; }
.nav-card-list { margin-bottom: 8px; }
.nav-card-list li { font-size: 13.5px; color: var(--c-text-3); padding-left: 14px; position: relative; }
.nav-card-list li::before { content: "·"; position: absolute; left: 4px; color: var(--c-brand-l); }
.nav-card-meta { font-size: 13px; color: var(--c-accent-d); font-weight: 600; }
.nav-card-arrow {
  position: absolute; right: 22px; bottom: 20px;
  color: var(--c-brand); font-size: 18px; opacity: 0; transform: translateX(-6px);
  transition: all .24s var(--ease);
}
.nav-card:hover .nav-card-arrow { opacity: 1; transform: translateX(0); }

.product-tabs { border: 1px solid var(--c-line); border-radius: var(--r-xl); background: #fff; overflow: hidden; }
.tab-btns { display: flex; overflow-x: auto; border-bottom: 1px solid var(--c-line); background: var(--c-bg-alt); }
.tab-btns button {
  display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  padding: 18px 26px; border: 0; background: none;
  font-size: 15px; font-weight: 600; color: var(--c-text-2);
  border-bottom: 2px solid transparent; transition: all .2s var(--ease);
}
.tab-btns button:hover { color: var(--c-brand); }
.tab-btns button[aria-selected="true"] { color: var(--c-brand); background: #fff; border-bottom-color: var(--c-brand); }
.tab-panel-inner { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 48px; padding: 40px; }
.tab-intro h3 { font-size: 22px; margin-bottom: 12px; }
.tab-intro p { font-size: 15px; color: var(--c-text-2); margin-bottom: 20px; }
.tab-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 8px 24px; }
.tab-links a { display: block; padding: 12px 14px; border-radius: var(--r-md); transition: background .2s var(--ease); }
.tab-links a:hover { background: var(--c-bg-alt); }
.tab-links strong { display: block; font-size: 15px; color: var(--c-ink); margin-bottom: 2px; }
.tab-links span { font-size: 13px; color: var(--c-text-3); }

/* ---------- 07 内容块组件 ---------- */
.page-hero { position: relative; overflow: hidden; background: linear-gradient(150deg, #0b1d26 0%, #123c48 100%); color: #cfdde3; }
.page-hero .orb-1 { width: 380px; height: 380px; top: -150px; left: 4%; }
.page-hero .orb-2 { width: 300px; height: 300px; bottom: -170px; right: 10%; }
.page-hero-inner { position: relative; padding: 72px 24px 78px; max-width: 900px; }
.page-hero-sm .page-hero-inner { padding: 56px 24px 58px; }
.page-hero h1 { font-size: clamp(28px, 3.6vw, 44px); color: #fff; margin-bottom: 18px; }
.page-eyebrow {
  font-size: 13px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--c-accent); margin-bottom: 14px;
}
.page-lead { font-size: 17px; line-height: 1.85; color: #a9c3cc; }
.page-hero .page-lead a { color: #6fe0bc; text-decoration: underline; }
.hero-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.hero-chips li {
  padding: 6px 15px; border: 1px solid rgba(255, 255, 255, .22); border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .07); font-size: 13.5px; color: #d6e6eb;
}
.page-hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.detail-hero { padding: 56px 0 44px; border-bottom: 1px solid var(--c-line-2); background: var(--c-bg-alt); }
.detail-hero .page-eyebrow { color: var(--c-brand); }
.detail-hero h1 { font-size: clamp(26px, 3.2vw, 38px); margin-bottom: 16px; max-width: 900px; }
.detail-hero .page-lead { color: var(--c-text-2); max-width: 820px; }
.detail-hero .hero-chips li { border-color: var(--c-line); background: #fff; color: var(--c-text-2); }
.fact-row { display: flex; flex-wrap: wrap; gap: 12px 40px; margin-top: 26px; }
.fact-row li { display: flex; flex-direction: column; }
.fact-k { font-size: 12.5px; color: var(--c-text-3); }
.fact-v { font-size: 16px; font-weight: 700; color: var(--c-ink); }

.doc-body { min-width: 0; }
.block + .block { margin-top: 64px; }
.block-eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--c-accent-d); margin-bottom: 10px; }
.block-title { font-size: clamp(22px, 2.4vw, 28px); margin-bottom: 14px; scroll-margin-top: calc(var(--header-h) + 24px); }
.block-lead { font-size: 16.5px; color: var(--c-text-2); margin-bottom: 26px; max-width: 780px; }
.block-title + .prose, .block-title + .bullet-list, .block-title + .grid { margin-top: 22px; }

.prose p { margin-bottom: 18px; color: var(--c-text); }
.prose p:last-child { margin-bottom: 0; }

.bullet-list li { display: flex; gap: 11px; padding: 7px 0; align-items: flex-start; }
.bullet-icon { width: 20px; height: 20px; margin-top: 4px; color: var(--c-brand); }

.metric-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; }
.metric-row-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.metric-value { font-size: clamp(28px, 3vw, 40px); font-weight: 700; color: var(--c-brand); line-height: 1.2; font-variant-numeric: tabular-nums; }
.metric-value em { font-style: normal; font-size: .55em; margin-left: 2px; }
/* 文字型指标（非数字），字号小一档避免过于张扬 */
.metric-value-text { font-size: clamp(20px, 2vw, 26px); letter-spacing: .02em; }
.metric-label { font-size: 15px; font-weight: 600; color: var(--c-ink); margin-top: 4px; }
.metric-note { font-size: 13px; color: var(--c-text-3); margin-top: 4px; line-height: 1.6; }

.steps { counter-reset: step; }
.step { display: grid; grid-template-columns: 62px minmax(0, 1fr); gap: 20px; padding-bottom: 30px; position: relative; }
.step:not(:last-child)::before {
  content: ""; position: absolute; left: 23px; top: 46px; bottom: 4px;
  width: 2px; background: linear-gradient(var(--c-brand-l), var(--c-line));
}
.step-no {
  display: flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--c-brand-soft); color: var(--c-brand-d);
  font-family: var(--ff-mono); font-weight: 700; font-size: 15px;
  border: 2px solid #fff; box-shadow: 0 0 0 1px var(--c-brand-l);
}
.step-body h3 { font-size: 18px; margin-bottom: 6px; }
.step-body p { font-size: 15px; color: var(--c-text-2); }
.step-outputs { margin-top: 8px; font-size: 14px; color: var(--c-text-2); }
.step-outputs strong { color: var(--c-ink); }
.step-duration { display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; font-size: 13px; color: var(--c-accent-d); font-weight: 600; }
.step-duration svg { width: 15px; height: 15px; }

.timeline { position: relative; padding-left: 26px; }
.timeline::before { content: ""; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 2px; background: var(--c-line); }
.timeline li { position: relative; padding-bottom: 28px; }
.timeline-dot {
  position: absolute; left: -26px; top: 8px; width: 12px; height: 12px; border-radius: 50%;
  background: #fff; border: 3px solid var(--c-brand);
}
.timeline-time { font-family: var(--ff-mono); font-size: 13px; color: var(--c-accent-d); font-weight: 700; }
.timeline li h3 { font-size: 17px; margin: 2px 0 6px; }
.timeline li p { font-size: 15px; color: var(--c-text-2); }

.table-wrap { overflow-x: auto; border: 1px solid var(--c-line); border-radius: var(--r-lg); background: #fff; }
.data-table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 560px; }
.data-table caption { padding: 14px 18px; text-align: left; font-size: 13px; color: var(--c-text-3); border-bottom: 1px solid var(--c-line-2); }
.data-table th, .data-table td { padding: 13px 18px; text-align: left; border-bottom: 1px solid var(--c-line-2); vertical-align: top; }
.data-table thead th { background: var(--c-bg-alt); font-size: 13.5px; font-weight: 700; color: var(--c-ink); white-space: nowrap; }
.data-table tbody th { font-weight: 600; color: var(--c-ink); }
.data-table tbody tr:last-child th, .data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover { background: #fbfdfd; }
.table-footnote { margin-top: 10px; font-size: 13px; color: var(--c-text-3); }

.compare { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.compare-col { padding: 26px 26px 22px; border-radius: var(--r-lg); border: 1px solid var(--c-line); background: #fff; }
.compare-col h3 { font-size: 17px; margin-bottom: 14px; }
.compare-col li { position: relative; padding: 6px 0 6px 20px; font-size: 15px; color: var(--c-text-2); }
.compare-col li::before { content: ""; position: absolute; left: 0; top: 15px; width: 8px; height: 8px; border-radius: 50%; }
.compare-bad { border-color: #f1d9d3; background: #fdf7f5; }
.compare-bad li::before { background: var(--c-err); }
.compare-good { border-color: #cfe8de; background: #f4fbf8; }
.compare-good li::before { background: var(--c-ok); }
.compare-neutral li::before { background: var(--c-brand-l); }

.codeblock { margin: 0; border-radius: var(--r-lg); overflow: hidden; background: #06141b; border: 1px solid #12313d; }
.codeblock figcaption {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; background: #0d222c; border-bottom: 1px solid #12313d;
  font-family: var(--ff-mono); font-size: 12px; color: #6b8794;
}
.code-lang { padding: 2px 8px; border-radius: var(--r-sm); background: rgba(46, 203, 140, .15); color: #2ecb8c; text-transform: uppercase; letter-spacing: .06em; }
.code-file { color: #8fa8b3; }
.code-copy { margin-left: auto; padding: 3px 12px; border: 1px solid #244b58; border-radius: var(--r-sm); background: none; color: #8fa8b3; font-size: 12px; transition: all .2s var(--ease); }
.code-copy:hover { border-color: #2ecb8c; color: #2ecb8c; }
.codeblock pre { margin: 0; padding: 20px 22px; overflow-x: auto; }
.codeblock code { font-family: var(--ff-mono); font-size: 13px; line-height: 1.85; color: #cfe6e2; white-space: pre; }
.code-note { margin-top: 10px; font-size: 13.5px; color: var(--c-text-3); }

.arch { border: 1px solid var(--c-line); border-radius: var(--r-lg); overflow: hidden; background: #fff; }
.arch-layer { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 20px; padding: 18px 22px; align-items: center; }
.arch-layer + .arch-layer { border-top: 1px dashed var(--c-line); }
.arch-layer-name { font-size: 13px; font-weight: 700; color: var(--c-text-3); letter-spacing: .04em; }
.arch-nodes { display: flex; flex-wrap: wrap; gap: 10px; }
.arch-node { padding: 8px 15px; border-radius: var(--r-sm); font-size: 13.5px; font-weight: 600; border: 1px solid; }
.arch-base { background: var(--c-bg-alt); border-color: var(--c-line); color: var(--c-text-2); }
.arch-brand { background: var(--c-brand-soft); border-color: #bce0cd; color: var(--c-brand-d); }
.arch-accent { background: var(--c-accent-soft); border-color: #b3dfe4; color: var(--c-accent-d); }
.arch-note { margin-top: 12px; font-size: 13.5px; color: var(--c-text-3); }

.quote {
  margin: 0; padding: 32px 34px; border-radius: var(--r-lg);
  background: linear-gradient(150deg, var(--c-brand-soft), #fff);
  border-left: 4px solid var(--c-brand);
}
.quote p { font-size: 18px; line-height: 1.85; color: var(--c-ink-2); font-style: italic; }
.quote footer { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 4px 12px; align-items: baseline; }
.quote cite { font-style: normal; font-weight: 700; color: var(--c-ink); }
.quote footer span { font-size: 14px; color: var(--c-text-3); }

.faq-item { border: 1px solid var(--c-line); border-radius: var(--r-md); background: #fff; overflow: hidden; }
.faq-item + .faq-item { margin-top: 12px; }
.faq-item summary {
  padding: 18px 52px 18px 22px; font-size: 16px; font-weight: 600; color: var(--c-ink);
  cursor: pointer; list-style: none; position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: ""; position: absolute; right: 22px; top: 50%;
  width: 10px; height: 10px; margin-top: -6px;
  border-right: 2px solid var(--c-text-3); border-bottom: 2px solid var(--c-text-3);
  transform: rotate(45deg); transition: transform .24s var(--ease);
}
.faq-item[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq-item[open] summary { color: var(--c-brand); }
.faq-answer { padding: 0 22px 20px; font-size: 15.5px; color: var(--c-text-2); }

.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items: start; }
.split-reverse .split-text { order: 2; }
.split-text p { margin-bottom: 16px; color: var(--c-text); }
.split-text .bullet-list { margin: 18px 0 22px; }
.split-panel { padding: 26px 28px; border-radius: var(--r-lg); background: var(--c-bg-alt); border: 1px solid var(--c-line-2); }
.panel-list li { display: flex; justify-content: space-between; gap: 18px; padding: 11px 0; border-bottom: 1px dashed var(--c-line); }
.panel-list li:last-child { border-bottom: 0; }
.panel-key { font-size: 14px; color: var(--c-text-3); flex: 0 0 auto; }
.panel-val { font-size: 14.5px; font-weight: 600; color: var(--c-ink); text-align: right; }

.checklist { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px; }
.checklist-group { padding: 24px 26px; border: 1px solid var(--c-line); border-radius: var(--r-lg); background: #fff; }
.checklist-group h3 { font-size: 16px; margin-bottom: 12px; padding-bottom: 10px; border-bottom: 1px solid var(--c-line-2); }
.checklist-group li { display: flex; gap: 10px; padding: 6px 0; font-size: 14.5px; color: var(--c-text-2); }

.callout { display: flex; gap: 14px; padding: 20px 24px; border-radius: var(--r-md); border-left: 4px solid; }
.callout-icon { width: 22px; height: 22px; margin-top: 3px; flex: 0 0 auto; }
.callout-heading { font-weight: 700; margin-bottom: 4px; color: var(--c-ink); }
.callout p { font-size: 15px; color: var(--c-text-2); }
.callout-info { background: var(--c-brand-soft); border-color: var(--c-brand); }
.callout-info .callout-icon { color: var(--c-brand); }
.callout-warn { background: #fdf6e6; border-color: var(--c-warn); }
.callout-warn .callout-icon { color: var(--c-warn); }
.callout-ok { background: #eff9f4; border-color: var(--c-ok); }
.callout-ok .callout-icon { color: var(--c-ok); }

.pricing { display: grid; grid-template-columns: repeat(auto-fit, minmax(258px, 1fr)); gap: 24px; }
.plan { position: relative; padding: 32px 28px; border: 1px solid var(--c-line); border-radius: var(--r-lg); background: #fff; display: flex; flex-direction: column; }
.plan-featured { border-color: var(--c-brand); box-shadow: var(--sh-2); }
.plan-badge {
  position: absolute; top: -12px; left: 28px; padding: 4px 14px;
  border-radius: var(--r-pill); background: var(--c-accent); color: #fff;
  font-size: 12px; font-weight: 700;
}
.plan h3 { font-size: 18px; margin-bottom: 10px; }
.plan-price { font-size: 30px; font-weight: 700; color: var(--c-brand); line-height: 1.3; }
.plan-price em { font-style: normal; font-size: 14px; font-weight: 500; color: var(--c-text-3); margin-left: 4px; }
.plan-desc { font-size: 14px; color: var(--c-text-2); margin: 8px 0 18px; padding-bottom: 18px; border-bottom: 1px solid var(--c-line-2); }
.plan ul { flex: 1; margin-bottom: 22px; }
.plan li { display: flex; gap: 9px; padding: 6px 0; font-size: 14.5px; color: var(--c-text-2); }

.related-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 10px; }
.related-list a {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 15px 20px; border: 1px solid var(--c-line); border-radius: var(--r-md);
  background: #fff; font-size: 15px; font-weight: 600; color: var(--c-ink);
  transition: all .22s var(--ease);
}
.related-list a:hover { border-color: var(--c-brand); background: var(--c-brand-soft); color: var(--c-brand-d); }
.related-list em { font-style: normal; color: var(--c-brand); }

/* ---------- 08 案例 / 博客 / 联系 / 站点地图 / 404 ---------- */
.filter-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 34px; }
.filter-label { font-size: 13px; color: var(--c-text-3); margin-right: 6px; }
.filter-empty { padding: 40px 0; text-align: center; color: var(--c-text-3); }

.case-card { position: relative; overflow: hidden; }
.section-dark .case-card { background: rgba(255, 255, 255, .05); border-color: rgba(255, 255, 255, .12); }
.section-dark .case-card:hover { background: rgba(255, 255, 255, .09); border-color: var(--c-accent); transform: translateY(-4px); }
.section-dark .case-card p { color: #a9bfc8; }
.case-card-light:hover { transform: translateY(-4px); box-shadow: var(--sh-2); border-color: var(--c-brand-l); }
.case-industry {
  display: inline-block; padding: 4px 12px; margin-bottom: 14px;
  border-radius: var(--r-sm); background: var(--c-accent-soft); color: var(--c-accent-d);
  font-size: 12.5px; font-weight: 700;
}
.section-dark .case-industry { background: rgba(46, 203, 140, .16); color: #7be4c4; }
.case-industry-lg { font-size: 13.5px; padding: 5px 15px; }
.case-card h3 { font-size: 19px; margin-bottom: 10px; }
.case-card p { font-size: 15px; color: var(--c-text-2); margin-bottom: 18px; }
.case-kpis { display: flex; flex-wrap: wrap; gap: 8px 24px; padding-top: 16px; border-top: 1px solid var(--c-line-2); }
.section-dark .case-kpis { border-color: rgba(255, 255, 255, .12); }
.case-kpis li { display: flex; flex-direction: column; }
.case-kpis strong { font-size: 19px; color: var(--c-brand); line-height: 1.3; }
.section-dark .case-kpis strong { color: #2ecb8c; }
.case-kpis span { font-size: 12.5px; color: var(--c-text-3); }
.case-stack { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.case-stack li {
  padding: 3px 10px; border: 1px solid var(--c-line); border-radius: var(--r-sm);
  font-size: 12px; color: var(--c-text-3); font-family: var(--ff-mono);
}
.case-stack-lg li { font-size: 13px; padding: 5px 13px; }

.case-hero { padding: 60px 0 44px; background: linear-gradient(150deg, #0b1d26, #123c48); color: #cfdde3; }
.case-hero h1 { font-size: clamp(26px, 3.4vw, 40px); color: #fff; margin-bottom: 16px; max-width: 900px; }
.case-hero .page-lead { max-width: 860px; }
.case-facts { display: flex; flex-wrap: wrap; gap: 20px 48px; margin: 28px 0 0; }
.case-facts dt { font-size: 12.5px; color: #7e9aa5; }
.case-facts dd { margin: 2px 0 0; font-size: 15.5px; font-weight: 600; color: #fff; }
.case-kpi-band { padding: 32px 0; background: var(--c-ink-2); }
.case-kpi-band .metric-value { color: #2ecb8c; }
.case-kpi-band .metric-label { color: #cfe0e6; }
.case-kpi-band .metric-note { color: #7e9aa5; }

.post-card { display: flex; flex-direction: column; }
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 12px; font-size: 13px; color: var(--c-text-3); }
.post-tag { padding: 3px 11px; border-radius: var(--r-sm); background: var(--c-brand-soft); color: var(--c-brand-d); font-weight: 700; font-size: 12.5px; }
.post-card h3 { font-size: 18px; margin-bottom: 10px; }
.post-card p { font-size: 15px; color: var(--c-text-2); flex: 1; margin-bottom: 14px; }
.post-read { font-size: 13px; color: var(--c-text-3); }

.post-list { border-top: 1px solid var(--c-line); }
.post-row {
  display: flex; align-items: center; gap: 24px; padding: 30px 4px;
  border-bottom: 1px solid var(--c-line); transition: background .2s var(--ease), padding-left .2s var(--ease);
}
.post-row:hover { background: var(--c-bg-alt); padding-left: 16px; }
.post-row h2 { font-size: 21px; margin-bottom: 8px; }
.post-row p { font-size: 15px; color: var(--c-text-2); }
.post-row-arrow { font-size: 22px; color: var(--c-brand); opacity: 0; transition: all .22s var(--ease); }
.post-row:hover .post-row-arrow { opacity: 1; }
.post-tags { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-top: 12px; }
.post-tags li { font-size: 12.5px; color: var(--c-text-3); font-family: var(--ff-mono); }

.post-hero { padding: 56px 0 36px; border-bottom: 1px solid var(--c-line-2); }
.post-hero h1 { font-size: clamp(27px, 3.4vw, 40px); margin-bottom: 16px; }
.post-hero .page-lead { color: var(--c-text-2); }
.post-author { margin-top: 18px; font-size: 14px; color: var(--c-text-3); }
.post-body { padding: 48px 24px 72px; }

.contact-layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr); gap: 48px; align-items: start; }
.contact-form-wrap h2 { font-size: 24px; margin-bottom: 8px; }
.form-hint { font-size: 14px; color: var(--c-text-3); margin-bottom: 28px; }
.req { color: var(--c-err); }
.contact-form { display: grid; gap: 20px; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 14px; font-weight: 600; color: var(--c-ink); }
.field input, .field select, .field textarea {
  padding: 12px 14px; border: 1px solid var(--c-line); border-radius: var(--r-md);
  font-family: inherit; font-size: 15px; color: var(--c-text); background: #fff;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field textarea { resize: vertical; min-height: 120px; line-height: 1.7; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 0; border-color: var(--c-brand); box-shadow: 0 0 0 3px rgba(13, 110, 122, .12);
}
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--c-err); }
.field-error { font-size: 13px; color: var(--c-err); min-height: 0; }
.field-error:empty { display: none; }
.checkbox { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--c-text-2); }
.checkbox input { margin-top: 4px; width: 16px; height: 16px; accent-color: var(--c-brand); }
.form-status { font-size: 14.5px; font-weight: 600; min-height: 22px; }
.form-status.is-ok { color: var(--c-ok); }
.form-status.is-err { color: var(--c-err); }

.contact-card { padding: 26px 28px; border: 1px solid var(--c-line); border-radius: var(--r-lg); background: #fff; }
.contact-card + .contact-card { margin-top: 20px; }
.contact-card h3 { font-size: 17px; margin-bottom: 16px; }
.contact-card-accent { background: linear-gradient(160deg, var(--c-brand-soft), #fff); border-color: #c8e4e7; }
.contact-list li { display: flex; gap: 12px; padding: 11px 0; border-bottom: 1px dashed var(--c-line); }
.contact-list li:last-child { border-bottom: 0; }
.contact-list svg { width: 20px; height: 20px; margin-top: 4px; color: var(--c-brand); flex: 0 0 auto; }
.contact-list span { display: block; font-size: 12.5px; color: var(--c-text-3); }
.contact-list div { font-size: 15px; color: var(--c-text); }
.contact-list a { font-weight: 600; }
.promise-list li { display: flex; gap: 10px; padding: 7px 0; font-size: 14.5px; color: var(--c-text-2); }
.promise-list svg { width: 18px; height: 18px; margin-top: 4px; color: var(--c-ok); flex: 0 0 auto; }

.sitemap-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 40px; }
.sitemap-col h2 { font-size: 18px; padding-bottom: 12px; margin-bottom: 12px; border-bottom: 2px solid var(--c-brand); }
.sm-list li { padding: 4px 0; }
.sm-list a { font-size: 14.5px; color: var(--c-text); }
.sm-list a:hover { color: var(--c-brand); }
.sm-url { display: none; }
.sm-list .sm-list { margin-left: 14px; padding-left: 12px; border-left: 1px solid var(--c-line); }
.sm-list .sm-list a { font-size: 13.5px; color: var(--c-text-2); }
.sm-list .sm-list .sm-list a { font-size: 13px; color: var(--c-text-3); }

.notfound { padding: 100px 0 120px; text-align: center; }
.nf-code {
  font-family: var(--ff-mono); font-size: clamp(72px, 12vw, 130px); font-weight: 700;
  line-height: 1; letter-spacing: -.04em;
  background: linear-gradient(120deg, var(--c-brand), var(--c-accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.notfound h1 { font-size: clamp(22px, 3vw, 32px); margin: 18px 0 14px; }
.notfound .page-lead { color: var(--c-text-2); }
.notfound .page-hero-actions { justify-content: center; }
.nf-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 22px; margin-top: 44px; padding-top: 28px; border-top: 1px solid var(--c-line); }
.nf-links a { font-size: 14.5px; color: var(--c-text-2); }
.nf-links a:hover { color: var(--c-brand); }

/* ---------- 09 页脚 / CTA / 搜索 ---------- */
.cta-band { background: linear-gradient(120deg, var(--c-brand-d) 0%, #0b1d26 62%, #1c2f1e 100%); color: #cfdde3; }
.cta-inner { display: grid; grid-template-columns: 1.25fr .75fr; gap: 44px; align-items: center; padding: 62px 24px; }
.cta-eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--c-accent); margin-bottom: 12px; }
.cta-inner h2 { font-size: clamp(23px, 2.8vw, 32px); color: #fff; margin-bottom: 14px; }
.cta-text { font-size: 16px; color: #a9c3cc; max-width: 620px; }
.cta-actions { display: flex; flex-direction: column; gap: 12px; align-items: stretch; }
.cta-phone { font-size: 14px; color: #93aeb8; text-align: center; }
.cta-phone a { color: #fff; font-weight: 700; }

.site-footer { background: var(--c-bg-dark); color: #93aeb8; font-size: 14.5px; }
.footer-top { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 56px; padding: 62px 24px 44px; }
.footer-slogan { margin: 18px 0 22px; font-size: 15px; color: #a9c3cc; }
.footer-contact li { padding: 6px 0; }
.footer-contact span { display: inline-block; width: 66px; color: #6b8794; font-size: 13px; }
.footer-contact a { color: #d6e6eb; }
.footer-contact a:hover { color: #2ecb8c; }
.footer-links { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; }
.footer-col h3 { font-size: 15px; color: #fff; margin-bottom: 14px; }
.footer-col li { padding: 5px 0; }
.footer-col a { color: #93aeb8; font-size: 14px; }
.footer-col a:hover { color: #2ecb8c; }
.footer-certs { display: flex; flex-wrap: wrap; gap: 10px; padding: 0 24px 28px; }
.cert-chip {
  padding: 5px 14px; border: 1px solid rgba(255, 255, 255, .13); border-radius: var(--r-pill);
  font-size: 12.5px; color: #93aeb8; background: rgba(255, 255, 255, .04);
}
.footer-note { padding: 0 24px 26px; }
.footer-note p { font-size: 13px; color: #6b8794; line-height: 1.8; max-width: 900px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .09); }
.footer-bottom-inner { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; padding: 20px 24px; font-size: 13px; color: #6b8794; }
.footer-record a { color: #6b8794; }
.footer-record a:hover { color: #93aeb8; }

.search-modal { position: fixed; inset: 0; z-index: 140; }
.search-modal[hidden] { display: none; }
.search-backdrop { position: absolute; inset: 0; background: rgba(11, 29, 38, .55); backdrop-filter: blur(3px); }
.search-panel {
  position: relative; width: min(680px, 92vw); margin: 12vh auto 0;
  background: #fff; border-radius: var(--r-lg); box-shadow: var(--sh-3); overflow: hidden;
  animation: pop .22s var(--ease);
}
@keyframes pop { from { opacity: 0; transform: translateY(-12px) scale(.98); } }
.search-input-row { display: flex; align-items: center; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--c-line); }
.search-input-row .icon { color: var(--c-text-3); }
.search-input-row input { flex: 1; border: 0; outline: 0; font-size: 17px; font-family: inherit; background: none; }
.search-esc { padding: 4px 10px; border: 1px solid var(--c-line); border-radius: var(--r-sm); background: var(--c-bg-alt); font-size: 12px; color: var(--c-text-3); font-family: var(--ff-mono); }
.search-results { max-height: 58vh; overflow-y: auto; padding: 10px; }
.search-hint { padding: 26px 14px; text-align: center; font-size: 14px; color: var(--c-text-3); }
.search-item { display: block; padding: 13px 16px; border-radius: var(--r-md); transition: background .16s var(--ease); }
.search-item:hover, .search-item.is-active { background: var(--c-brand-soft); }
.search-item strong { display: block; font-size: 15.5px; color: var(--c-ink); }
.search-item span { display: block; font-size: 13px; color: var(--c-text-2); margin-top: 3px; }
.search-item em { font-style: normal; font-size: 12px; color: var(--c-accent-d); font-weight: 700; }
.search-count { padding: 6px 16px 10px; font-size: 12.5px; color: var(--c-text-3); }
.search-mark { background: rgba(46, 203, 140, .3); border-radius: 2px; }

/* ---------- 10 响应式 ---------- */
@media (max-width: 1180px) {
  .megamenu-inner { grid-template-columns: 220px 1fr; gap: 32px; }
  .tab-panel-inner { grid-template-columns: 260px minmax(0, 1fr); gap: 32px; padding: 32px; }
  .layout-with-side { grid-template-columns: 232px minmax(0, 1fr); gap: 40px; }
}

@media (max-width: 1024px) {
  .mainnav, .nav-cta { display: none; }
  .burger { display: flex; }
  .hero-inner { grid-template-columns: 1fr; gap: 48px; padding: 64px 24px 80px; }
  .hero-lead { max-width: none; }
  .cap-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .metric-row-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .layout-with-side { grid-template-columns: 1fr; gap: 0; }
  .sidenav { position: static; margin-bottom: 36px; padding-bottom: 28px; border-bottom: 1px solid var(--c-line); }
  .sidenav-card { display: none; }
  .cta-inner, .footer-top, .contact-layout { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tab-panel-inner { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 28px; }
  .split-reverse .split-text { order: 0; }
}

@media (max-width: 767px) {
  body { font-size: 15.5px; }
  .section { padding: 60px 0; }
  .wrap { padding: 0 18px; }
  .topbar-links, .topbar-hide-sm, .topbar-sep { display: none; }
  .grid-2, .grid-3, .grid-4, .compare, .pager { grid-template-columns: 1fr; }
  .cap-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .cap-item { padding: 14px; }
  .metric-row, .metric-row-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
  .field-row { grid-template-columns: 1fr; }
  .toc ol { columns: 1; }
  .step { grid-template-columns: 44px minmax(0, 1fr); gap: 14px; }
  .step-no { width: 36px; height: 36px; font-size: 13px; }
  .step:not(:last-child)::before { left: 17px; top: 40px; }
  .arch-layer { grid-template-columns: 1fr; gap: 10px; }
  .block + .block { margin-top: 48px; }
  .quote { padding: 24px 22px; }
  .quote p { font-size: 16.5px; }
  .post-row { padding: 22px 0; }
  .post-row-arrow { display: none; }
  .case-facts { gap: 16px 28px; }
  .to-top { right: 14px; bottom: 16px; }
  .footer-links { grid-template-columns: 1fr; gap: 24px; }
  .search-panel { margin-top: 6vh; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .site-header, .site-footer, .cta-band, .to-top, .sidenav, .toc,
  .drawer, .scrim, .search-modal, .pager, .breadcrumb { display: none !important; }
  body { color: #000; font-size: 12pt; }
  .layout-with-side { display: block; padding: 0; }
  a { color: #000; text-decoration: underline; }
  .page-hero, .hero, .detail-hero, .case-hero { background: none !important; color: #000; }
  .page-hero h1, .hero-text h1, .case-hero h1 { color: #000; }
  .page-lead, .hero-lead { color: #333; }
}