/* ==========================================================================
   KimPos — 官网前台样式
   设计基调：深墨蓝 + 活力橙，克制的留白与层次，参考一线 SaaS 品牌站
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 品牌色 */
  --brand: #ff6a1a;
  --brand-600: #f25c0b;
  --brand-700: #d94e05;
  --brand-soft: #fff2e9;
  --brand-soft-2: #ffe4d2;

  /* 中性色（墨蓝系） */
  --ink: #0a1226;
  --ink-2: #16203a;
  --ink-3: #26324f;
  --text: #1c2536;
  --text-2: #4a5568;
  --text-3: #737f92;
  --line: #e6eaf0;
  --line-2: #eef1f6;
  --bg: #ffffff;
  --bg-soft: #f7f9fc;
  --bg-soft-2: #eff3f9;

  /* 辅助色 */
  --blue: #2563eb;
  --green: #10b981;
  --purple: #7c5cff;

  /* 排版 */
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "PingFang HK", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;

  /* 圆角与阴影 */
  --r-sm: 8px;
  --r: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --shadow-sm: 0 1px 2px rgba(10, 18, 38, .06), 0 1px 3px rgba(10, 18, 38, .04);
  --shadow: 0 4px 16px rgba(10, 18, 38, .07), 0 1px 3px rgba(10, 18, 38, .05);
  --shadow-lg: 0 18px 48px rgba(10, 18, 38, .12), 0 4px 12px rgba(10, 18, 38, .06);
  --shadow-brand: 0 10px 30px rgba(255, 106, 26, .28);

  /* 布局 */
  --container: 1200px;
  --header-h: 72px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 2. 基础重置 ---------- */
*, *::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(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4, h5 {
  margin: 0;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.02em;
  color: var(--ink);
}
h1 { font-size: clamp(2rem, 4.6vw, 3.5rem); letter-spacing: -.035em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.5rem); letter-spacing: -.03em; }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.4rem); }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

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

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--ink); color: #fff; padding: 12px 20px; border-radius: 0 0 var(--r-sm) 0;
}
.skip-link:focus { left: 0; }

/* ---------- 3. 布局工具 ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }
.container-narrow { max-width: 860px; }

.section { padding: clamp(56px, 8vw, 104px) 0; }
.section--soft { background: var(--bg-soft); }
.section--tight { padding: clamp(40px, 5vw, 64px) 0; }

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

.text-center { text-align: center; }
.mt-0 { margin-top: 0; } .mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; } .mt-40 { margin-top: 40px; } .mt-56 { margin-top: 56px; }

/* ---------- 4. 通用组件 ---------- */

/* 标签徽章 */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8125rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: var(--brand-700); background: var(--brand-soft);
  padding: 7px 14px; border-radius: 100px;
}
.eyebrow--light { color: #ffd9c2; background: rgba(255, 106, 26, .16); }
.eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--brand); flex: none;
}

/* 区块标题 */
.section-head { max-width: 720px; margin-bottom: clamp(32px, 4vw, 56px); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head h2 { margin-bottom: 14px; }
.section-head p { color: var(--text-2); font-size: 1.0625rem; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 100px;
  font-weight: 600; font-size: .9375rem; letter-spacing: -.01em;
  transition: all .25s var(--ease);
  white-space: nowrap; border: 1.5px solid transparent;
}
.btn svg { width: 17px; height: 17px; flex: none; transition: transform .25s var(--ease); }
.btn:hover svg.arr { transform: translateX(3px); }

.btn-primary { background: var(--brand); color: #fff; box-shadow: var(--shadow-brand); }
.btn-primary:hover { background: var(--brand-600); transform: translateY(-2px); box-shadow: 0 14px 34px rgba(255, 106, 26, .36); }

.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: var(--ink-2); transform: translateY(-2px); }

.btn-outline { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--ink); transform: translateY(-2px); }

.btn-ghost-light { border-color: rgba(255, 255, 255, .28); color: #fff; }
.btn-ghost-light:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .5); }

.btn-white { background: #fff; color: var(--ink); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.btn-lg { padding: 16px 34px; font-size: 1rem; }
.btn-sm { padding: 9px 18px; font-size: .875rem; }
.btn-block { width: 100%; }

/* 文字链接 */
.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--brand-700); font-weight: 600; font-size: .9375rem;
}
.link-arrow svg { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* 卡片 */
.card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-lg); padding: 28px;
  transition: all .3s var(--ease); height: 100%;
  display: flex; flex-direction: column;
}
.card:hover { border-color: transparent; box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--text-2); font-size: .9375rem; }

/* 图标容器 */
.icon-box {
  width: 52px; height: 52px; border-radius: 15px;
  display: grid; place-items: center; margin-bottom: 18px; flex: none;
  background: var(--brand-soft); color: var(--brand-700);
}
.icon-box svg { width: 26px; height: 26px; }
.icon-box--blue { background: #e8f0ff; color: var(--blue); }
.icon-box--green { background: #e3f8f1; color: #07926c; }
.icon-box--purple { background: #efeaff; color: #5b3fd9; }
.icon-box--ink { background: var(--bg-soft-2); color: var(--ink); }

/* 卖点列表 */
.point-list { display: grid; gap: 10px; margin-top: 16px; }
.point-list li {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: .9375rem; color: var(--text-2); line-height: 1.6;
}
.point-list li::before {
  content: ""; flex: none; width: 18px; height: 18px; margin-top: 3px;
  border-radius: 50%; background: var(--brand-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f25c0b' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center / 11px no-repeat;
}
.point-list--light li { color: rgba(255, 255, 255, .8); }
.point-list--light li::before { background-color: rgba(255, 255, 255, .16); }

/* ---------- 5. 页头 ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s;
}
.header.is-scrolled { border-bottom-color: var(--line); box-shadow: 0 2px 12px rgba(10, 18, 38, .04); }

.header-inner {
  height: var(--header-h); display: flex; align-items: center; gap: 32px;
}

.logo { display: flex; align-items: center; gap: 10px; flex: none; }
.logo img, .logo svg { height: 34px; width: auto; }
.logo-text { font-size: 1.25rem; font-weight: 800; letter-spacing: -.03em; color: var(--ink); }

.nav-main { display: flex; align-items: center; gap: 4px; margin-inline-end: auto; }
.nav-main a {
  padding: 9px 15px; border-radius: 10px; font-size: .9375rem; font-weight: 500;
  color: var(--text-2); transition: all .2s;
}
.nav-main a:hover { color: var(--ink); background: var(--bg-soft); }
.nav-main a.active { color: var(--ink); font-weight: 600; }

/* 首页入口：与导航条其他项保持一致的文字链接风格，仅以图标区分 */
.nav-main a.nav-home {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 15px; border-radius: 10px; font-size: .9375rem; font-weight: 500;
  color: var(--text-2);
}
.nav-main a.nav-home .nav-home-ic { width: 16px; height: 16px; }
.nav-main a.nav-home:hover { color: var(--ink); background: var(--bg-soft); }
.nav-main a.nav-home.active { color: var(--brand-600); font-weight: 600; }

/* 导航悬停下拉（解决方案 → 行业分类） */
.nav-item-has-children { position: relative; }
.nav-item-has-children .nav-parent {
  display: inline-flex; align-items: center; gap: 4px; cursor: pointer;
}
.nav-item-has-children .nav-caret { width: 14px; height: 14px; transition: transform .2s; }
.nav-item-has-children:hover .nav-caret { transform: rotate(180deg); }
.nav-dropdown {
  position: absolute; top: calc(100% + 6px); left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 220px; padding: 8px; background: #fff; border: 1px solid var(--line, #eceef2);
  border-radius: 14px; box-shadow: 0 18px 48px rgba(15, 23, 42, .14);
  opacity: 0; visibility: hidden; pointer-events: none; transition: all .18s ease; z-index: 50;
}
.nav-item-has-children:hover .nav-dropdown {
  opacity: 1; visibility: visible; pointer-events: auto; transform: translateX(-50%) translateY(0);
}
.nav-dropdown::before { content: ''; position: absolute; top: -8px; left: 0; right: 0; height: 8px; }
.nav-dropdown-item {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 10px;
  color: var(--ink); font-size: .9375rem; font-weight: 500; transition: all .15s;
}
.nav-dropdown-item:hover { background: var(--bg-soft, #f6f7f9); color: var(--brand-600); }
.nav-drop-ic { display: inline-flex; width: 18px; height: 18px; color: var(--brand-600); }
.nav-drop-ic svg { width: 18px; height: 18px; }

/* 移动端导航子链接 */
.m-sublinks { display: flex; flex-direction: column; gap: 2px; padding: 4px 0 8px 18px; }
.m-sublink { padding: 8px 12px; border-radius: 10px; color: var(--text-2); font-size: .9rem; background: var(--bg-soft, #f6f7f9); }
.m-sublink:active { color: var(--brand-600); }

.header-actions { display: flex; align-items: center; gap: 12px; flex: none; }

/* 语言切换器 */
.lang-switch { position: relative; }
.lang-btn {
  display: flex; align-items: center; gap: 7px;
  padding: 8px 13px; border-radius: 10px;
  font-size: .875rem; font-weight: 600; color: var(--text-2);
  border: 1px solid var(--line); background: #fff; transition: all .2s;
}
.lang-btn:hover { border-color: var(--ink-3); color: var(--ink); }
.lang-btn svg.globe { width: 16px; height: 16px; }
.lang-btn svg.chev { width: 13px; height: 13px; opacity: .55; transition: transform .25s; }
.lang-switch.open .lang-btn svg.chev { transform: rotate(180deg); }
.lang-switch.open .lang-btn { border-color: var(--ink-3); color: var(--ink); }

.lang-menu {
  position: absolute; top: calc(100% + 10px); inset-inline-end: 0;
  min-width: 172px; padding: 7px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  box-shadow: var(--shadow-lg); z-index: 60;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: all .22s var(--ease);
}
.lang-switch.open .lang-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-menu a {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 13px; border-radius: 9px;
  font-size: .9rem; font-weight: 500; color: var(--text-2); transition: all .18s;
}
.lang-menu a:hover { background: var(--bg-soft); color: var(--ink); }
.lang-menu a.active { color: var(--brand-700); font-weight: 600; background: var(--brand-soft); }
.lang-menu a .tick { width: 15px; height: 15px; opacity: 0; }
.lang-menu a.active .tick { opacity: 1; }

/* 移动端汉堡 */
.burger {
  display: none; width: 42px; height: 42px; border-radius: 10px;
  border: 1px solid var(--line); place-items: center;
}
.burger span {
  display: block; width: 18px; height: 2px; background: var(--ink); border-radius: 2px;
  position: relative; transition: all .28s var(--ease);
}
.burger span::before, .burger span::after {
  content: ""; position: absolute; left: 0; width: 18px; height: 2px;
  background: var(--ink); border-radius: 2px; transition: all .28s var(--ease);
}
.burger span::before { top: -6px; }
.burger span::after { top: 6px; }
body.menu-open .burger span { background: transparent; }
body.menu-open .burger span::before { top: 0; transform: rotate(45deg); }
body.menu-open .burger span::after { top: 0; transform: rotate(-45deg); }

/* 移动端抽屉 */
.mobile-nav {
  position: fixed; inset: var(--header-h) 0 0; z-index: 95;
  background: #fff; padding: 24px; overflow-y: auto;
  transform: translateX(100%); transition: transform .32s var(--ease);
  display: flex; flex-direction: column; gap: 6px;
}
body.menu-open .mobile-nav { transform: translateX(0); }
.mobile-nav a.m-link {
  display: flex; align-items: center; gap: 8px;
  padding: 15px 4px; font-size: 1.0625rem; font-weight: 600; color: var(--ink);
  border-bottom: 1px solid var(--line-2);
}
.mobile-nav a.m-link.m-link-home {
  color: var(--ink);
}
.mobile-nav a.m-link .m-home-ic { width: 18px; height: 18px; flex: none; }
.mobile-nav .m-lang { margin-top: 22px; }
.mobile-nav .m-lang-title {
  font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-3); margin-bottom: 12px;
}
.mobile-nav .m-lang-row { display: flex; gap: 8px; flex-wrap: wrap; }
.mobile-nav .m-lang-row a {
  padding: 10px 18px; border-radius: 100px; border: 1px solid var(--line);
  font-size: .9rem; font-weight: 600; color: var(--text-2);
}
.mobile-nav .m-lang-row a.active { background: var(--brand-soft); border-color: var(--brand-soft-2); color: var(--brand-700); }

/* ---------- 6. 首屏 Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(165deg, #0a1226 0%, #131f3d 48%, #1b2a4e 100%);
  color: #fff; padding: clamp(64px, 9vw, 116px) 0 clamp(72px, 10vw, 130px);
}
.hero::before {
  content: ""; position: absolute; top: -18%; inset-inline-end: -8%;
  width: 620px; height: 620px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 106, 26, .3), transparent 62%);
  filter: blur(28px); pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; bottom: -32%; inset-inline-start: -12%;
  width: 560px; height: 560px; border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, .26), transparent 62%);
  filter: blur(30px); pointer-events: none;
}
.hero-grid-bg {
  position: absolute; inset: 0; opacity: .35; pointer-events: none;
  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% 60% at 50% 0%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 78%);
}
.hero .container { position: relative; z-index: 2; }
.hero-layout { display: grid; grid-template-columns: 1.06fr .94fr; gap: 56px; align-items: center; }
.hero h1 { color: #fff; margin: 20px 0 20px; }
.hero h1 em {
  font-style: normal; position: relative; white-space: nowrap;
  background: linear-gradient(100deg, var(--brand) 10%, #ffb45c 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
  font-size: clamp(1rem, 1.4vw, 1.125rem); color: rgba(255, 255, 255, .74);
  max-width: 560px; margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero-note {
  margin-top: 20px; font-size: .875rem; color: rgba(255, 255, 255, .5);
  display: flex; align-items: center; gap: 8px;
}
.hero-note svg { width: 16px; height: 16px; color: var(--green); }

/* Hero 右侧产品预览卡 */
.hero-visual { position: relative; }
.hero-card {
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--r-xl); padding: 22px;
  backdrop-filter: blur(10px); box-shadow: 0 30px 70px rgba(0, 0, 0, .35);
}
.hero-card-top {
  display: flex; align-items: center; gap: 8px; margin-bottom: 18px;
  padding-bottom: 16px; border-bottom: 1px solid rgba(255, 255, 255, .09);
}
.hero-card-top .dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, .2); }
.hero-card-top .dot:first-child { background: #ff5f57; }
.hero-card-top .dot:nth-child(2) { background: #febc2e; }
.hero-card-top .dot:nth-child(3) { background: #28c840; }
.hero-card-top span {
  margin-inline-start: auto; font-size: .75rem; color: rgba(255, 255, 255, .42);
  font-variant-numeric: tabular-nums;
}
.hero-metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 16px; }
.hero-metric { background: rgba(255, 255, 255, .05); border-radius: var(--r); padding: 14px 16px; }
.hero-metric .k { font-size: .75rem; color: rgba(255, 255, 255, .5); margin-bottom: 4px; }
.hero-metric .v { font-size: 1.5rem; font-weight: 800; color: #fff; letter-spacing: -.03em; }
.hero-metric .v small { font-size: .75rem; font-weight: 600; color: var(--green); margin-inline-start: 6px; }
.hero-chart { display: flex; align-items: flex-end; gap: 7px; height: 92px; padding-top: 8px; }
.hero-chart i {
  flex: 1; border-radius: 5px 5px 2px 2px; display: block;
  background: linear-gradient(180deg, var(--brand), rgba(255, 106, 26, .25));
  animation: barRise .9s var(--ease) backwards;
}
@keyframes barRise { from { height: 0 !important; opacity: 0; } }
.hero-chart i:nth-child(even) { background: linear-gradient(180deg, rgba(255, 255, 255, .5), rgba(255, 255, 255, .1)); }

/* ---------- 7. 数据条 ---------- */
.stats-bar {
  background: #fff; border-radius: var(--r-xl);
  box-shadow: var(--shadow-lg); border: 1px solid var(--line-2);
  margin-top: -58px; position: relative; z-index: 5;
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: 34px 18px;
}
.stat { text-align: center; padding: 8px 16px; position: relative; }
.stat + .stat::before {
  content: ""; position: absolute; inset-inline-start: 0; top: 14%; height: 72%;
  width: 1px; background: var(--line-2);
}
.stat .num {
  font-size: clamp(1.6rem, 2.6vw, 2.25rem); font-weight: 800;
  color: var(--ink); letter-spacing: -.04em; line-height: 1.1;
}
.stat .num span { color: var(--brand); }
.stat .label { font-size: .875rem; color: var(--text-3); margin-top: 6px; }

/* ---------- 8. 业态 / 解决方案卡 ---------- */
.scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.scenario-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 26px 22px; transition: all .3s var(--ease);
  display: flex; flex-direction: column; position: relative; overflow: hidden;
}
.scenario-card::after {
  content: ""; position: absolute; inset-inline: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--brand), #ffb45c);
  transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease);
}
.scenario-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.scenario-card:hover::after { transform: scaleX(1); }
.scenario-card h3 { font-size: 1.0625rem; margin-bottom: 12px; }
.scenario-card .point-list { flex: 1; }
.scenario-card .point-list li { font-size: .8438rem; }
.scenario-card .link-arrow { margin-top: 20px; font-size: .875rem; }

/* ---------- 9. 功能网格 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.feature-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 26px; transition: all .3s var(--ease); height: 100%;
  display: flex; flex-direction: column;
}
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-card h3 { font-size: 1.0625rem; margin-bottom: 9px; }
.feature-card p { font-size: .9rem; color: var(--text-2); flex: 1; }
.feature-card .link-arrow { margin-top: 18px; font-size: .875rem; }

/* 带图的横向特性块 */
/* ---------- 解决方案二级分类筛选 ---------- */
.sol-cats {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-bottom: clamp(40px, 6vw, 64px);
}
.sol-cat {
  display: inline-flex; align-items: center;
  padding: 9px 18px; border-radius: 999px;
  font-size: .9375rem; font-weight: 600; color: var(--text-2);
  background: var(--bg-soft); border: 1px solid var(--line);
  text-decoration: none; transition: all .25s var(--ease);
}
.sol-cat:hover { color: var(--primary); border-color: var(--primary); transform: translateY(-2px); }
.sol-cat.is-active { color: #fff; background: var(--primary); border-color: var(--primary); }
.sol-tag {
  display: inline-block; margin-bottom: 14px; padding: 4px 12px;
  border-radius: 999px; font-size: .8125rem; font-weight: 600;
  color: var(--primary); background: rgba(255, 106, 26, .1);
}
.split {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 76px);
  align-items: center;
}
.split + .split { margin-top: clamp(56px, 8vw, 96px); }
.split--reverse .split-media { order: -1; }
.split-media img, .split-media .ph {
  border-radius: var(--r-xl); box-shadow: var(--shadow-lg); width: 100%;
}
.split-body h2 { margin-bottom: 16px; }
.split-body > p { color: var(--text-2); font-size: 1.0313rem; }

/* ---------- 10. 优势区（深色） ---------- */
.dark-section {
  background: linear-gradient(160deg, #0a1226, #16203a);
  color: #fff; position: relative; overflow: hidden;
}
.dark-section::before {
  content: ""; position: absolute; inset-inline-end: -6%; top: -20%;
  width: 480px; height: 480px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 106, 26, .2), transparent 65%);
  filter: blur(24px);
}
.dark-section .container { position: relative; z-index: 2; }
.dark-section h2, .dark-section h3 { color: #fff; }
.dark-section .section-head p { color: rgba(255, 255, 255, .62); }
.why-card {
  background: rgba(255, 255, 255, .045); border: 1px solid rgba(255, 255, 255, .09);
  border-radius: var(--r-lg); padding: 30px 26px; height: 100%;
  transition: all .3s var(--ease);
}
.why-card:hover { background: rgba(255, 255, 255, .075); transform: translateY(-4px); border-color: rgba(255, 255, 255, .16); }
.why-card .icon-box { background: rgba(255, 106, 26, .16); color: #ff9a5c; }
.why-card h3 { font-size: 1.125rem; margin-bottom: 10px; }
.why-card p { color: rgba(255, 255, 255, .62); font-size: .9375rem; }

/* ---------- 11. 案例 ---------- */
.case-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden; transition: all .3s var(--ease); height: 100%;
  display: flex; flex-direction: column;
}
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.case-thumb { aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-soft-2); }
.case-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.case-card:hover .case-thumb img { transform: scale(1.05); }
.case-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.case-industry {
  font-size: .75rem; font-weight: 600; color: var(--brand-700);
  background: var(--brand-soft); padding: 4px 11px; border-radius: 100px;
  align-self: flex-start; margin-bottom: 12px;
}
.case-body h3 { font-size: 1.0625rem; margin-bottom: 8px; }
.case-body p { font-size: .9rem; color: var(--text-2); flex: 1; }
.case-quote {
  margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--line);
  font-size: .875rem; color: var(--text-2); font-style: italic;
}

/* ---------- 12. 资讯卡 ---------- */
.news-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden; transition: all .3s var(--ease); height: 100%;
  display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }
.news-thumb { aspect-ratio: 16 / 9; overflow: hidden; background: var(--bg-soft-2); position: relative; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.news-card:hover .news-thumb img { transform: scale(1.05); }
.news-top-flag {
  position: absolute; top: 12px; inset-inline-start: 12px;
  background: var(--brand); color: #fff; font-size: .6875rem; font-weight: 700;
  padding: 4px 10px; border-radius: 6px; letter-spacing: .04em;
}
.news-body { padding: 22px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.news-meta {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  font-size: .8125rem; color: var(--text-3); margin-bottom: 11px;
}
.news-meta .cat { color: var(--brand-700); font-weight: 600; }
.news-meta .sep { width: 3px; height: 3px; border-radius: 50%; background: var(--line); }
.news-body h3 {
  font-size: 1.0625rem; line-height: 1.45; margin-bottom: 10px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  line-clamp: 2; overflow: hidden;
}
.news-card:hover h3 { color: var(--brand-700); }
.news-body p {
  font-size: .9rem; color: var(--text-2); flex: 1;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
  line-clamp: 3; overflow: hidden;
}

/* 资讯列表：分类筛选条 */
.filter-bar {
  display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
  margin-bottom: 34px; padding-bottom: 24px; border-bottom: 1px solid var(--line-2);
}
.filter-bar a {
  padding: 8px 18px; border-radius: 100px; font-size: .9rem; font-weight: 500;
  border: 1px solid var(--line); color: var(--text-2); transition: all .2s;
}
.filter-bar a:hover { border-color: var(--ink-3); color: var(--ink); }
.filter-bar a.active { background: var(--ink); border-color: var(--ink); color: #fff; font-weight: 600; }
.filter-search { margin-inline-start: auto; position: relative; }
.filter-search input {
  padding: 9px 16px 9px 38px; border-radius: 100px; border: 1px solid var(--line);
  font-size: .9rem; width: 220px; background: #fff; transition: all .2s;
}
.filter-search input:focus { outline: none; border-color: var(--brand); width: 260px; }
.filter-search svg {
  position: absolute; inset-inline-start: 14px; top: 50%; transform: translateY(-50%);
  width: 15px; height: 15px; color: var(--text-3);
}

/* ---------- 13. 价格 ---------- */
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.plan {
  background: #fff; border: 1.5px solid var(--line); border-radius: var(--r-xl);
  padding: 34px 30px; display: flex; flex-direction: column; position: relative;
  transition: all .3s var(--ease);
}
.plan:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.plan.is-hot { border-color: var(--brand); box-shadow: var(--shadow-brand); }
.plan-flag {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--brand); color: #fff; font-size: .75rem; font-weight: 700;
  padding: 5px 16px; border-radius: 100px; white-space: nowrap;
}
.plan h3 { font-size: 1.25rem; margin-bottom: 8px; }
.plan .plan-desc { font-size: .9rem; color: var(--text-2); min-height: 44px; }
.plan-price { margin: 20px 0 4px; display: flex; align-items: baseline; gap: 6px; }
.plan-price .amt { font-size: 2.5rem; font-weight: 800; color: var(--ink); letter-spacing: -.045em; }
.plan-price .unit { font-size: .9375rem; color: var(--text-3); }
.plan .point-list { flex: 1; margin: 22px 0 26px; }
.plan-note { font-size: .8125rem; color: var(--text-3); text-align: center; margin-top: 32px; }

/* ---------- 14. FAQ 手风琴 ---------- */
.faq-list { display: grid; gap: 12px; max-width: 880px; margin-inline: auto; }

.faq-item { border: 1px solid var(--line); border-radius: var(--r); background: #fff; overflow: hidden; transition: all .25s; }
.faq-item.open { border-color: var(--brand-soft-2); box-shadow: var(--shadow); }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 19px 24px; text-align: start; font-size: 1rem; font-weight: 600; color: var(--ink);
}
.faq-q .plus {
  flex: none; width: 24px; height: 24px; border-radius: 50%; background: var(--bg-soft);
  display: grid; place-items: center; transition: all .3s var(--ease);
}
.faq-q .plus svg { width: 13px; height: 13px; color: var(--text-2); }
.faq-item.open .faq-q .plus { background: var(--brand); transform: rotate(45deg); }
.faq-item.open .faq-q .plus svg { color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s var(--ease); }
.faq-a-inner { padding: 0 24px 22px; color: var(--text-2); font-size: .9375rem; }

/* ---------- 15. 合作 LOGO 墙 ---------- */
.logo-marquee { overflow: hidden; position: relative; padding: 8px 0; }
.logo-marquee::before, .logo-marquee::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 90px; z-index: 2; pointer-events: none;
}
.logo-marquee::before { left: 0; background: linear-gradient(90deg, var(--bg-soft), transparent); }
.logo-marquee::after { right: 0; background: linear-gradient(-90deg, var(--bg-soft), transparent); }
.logo-track { display: flex; gap: 56px; width: max-content; animation: marquee 34s linear infinite; }
.logo-marquee:hover .logo-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.logo-track .item {
  height: 40px; display: grid; place-items: center; opacity: .5;
  filter: grayscale(1); transition: all .3s; flex: none;
}
.logo-track .item:hover { opacity: 1; filter: none; }
.logo-track .item img { max-height: 40px; width: auto; }
.logo-track .item span { font-size: 1.125rem; font-weight: 700; color: var(--text-3); white-space: nowrap; }

/* ---------- 16. CTA 区块 ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--brand) 0%, #ff8a3d 55%, #ffa45c 100%);
  border-radius: var(--r-xl); padding: clamp(38px, 5.5vw, 64px);
  color: #fff; position: relative; overflow: hidden;
  display: grid; grid-template-columns: 1.4fr auto; gap: 32px; align-items: center;
}
.cta-band::before {
  content: ""; position: absolute; inset-inline-end: -60px; top: -80px;
  width: 320px; height: 320px; border-radius: 50%; background: rgba(255, 255, 255, .12);
}
.cta-band::after {
  content: ""; position: absolute; inset-inline-end: 90px; bottom: -110px;
  width: 220px; height: 220px; border-radius: 50%; background: rgba(255, 255, 255, .09);
}
.cta-band > * { position: relative; z-index: 2; }
.cta-band h2 { color: #fff; margin-bottom: 12px; }
.cta-band p { color: rgba(255, 255, 255, .9); max-width: 620px; font-size: 1.0313rem; }

/* ---------- 17. 内页头部 ---------- */
.page-hero {
  background: linear-gradient(165deg, #0a1226, #1b2a4e);
  color: #fff; padding: clamp(52px, 7vw, 84px) 0 clamp(48px, 6.5vw, 76px);
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; top: -30%; inset-inline-end: -5%;
  width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 106, 26, .26), transparent 62%); filter: blur(24px);
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; margin-bottom: 14px; font-size: clamp(1.8rem, 3.6vw, 2.75rem); }
.page-hero p { color: rgba(255, 255, 255, .68); max-width: 660px; font-size: 1.0313rem; }

/* 面包屑 */
.breadcrumb {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-size: .8438rem; color: var(--text-3); padding: 18px 0;
}
.breadcrumb a { color: var(--text-3); transition: color .2s; }
.breadcrumb a:hover { color: var(--brand-700); }
.breadcrumb .sep { opacity: .4; }
.breadcrumb .cur { color: var(--text); font-weight: 500; }
.breadcrumb--light { color: rgba(255, 255, 255, .55); }
.breadcrumb--light a { color: rgba(255, 255, 255, .55); }
.breadcrumb--light a:hover { color: #fff; }
.breadcrumb--light .cur { color: #fff; }

/* ---------- 18. 富文本正文 ---------- */
.prose { font-size: 1.0313rem; line-height: 1.85; color: var(--text); }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { font-size: 1.5rem; margin-top: 1.9em; margin-bottom: .7em; }
.prose h3 { font-size: 1.1875rem; margin-top: 1.6em; margin-bottom: .6em; }
.prose p { margin: 0; color: var(--text-2); }
.prose ul, .prose ol { padding-inline-start: 1.3em; display: grid; gap: .5em; color: var(--text-2); }
.prose ul li { list-style: disc; }
.prose ol li { list-style: decimal; }
.prose img { max-width: 100%; height: auto; border-radius: var(--r); margin-block: 1.6em; box-shadow: var(--shadow); }
.prose video, .prose iframe { max-width: 100%; width: 100%; height: auto; aspect-ratio: 16 / 9; border: 0; border-radius: var(--r); margin-block: 1.6em; box-shadow: var(--shadow); }
.prose a { color: var(--brand-700); text-decoration: underline; text-underline-offset: 3px; }
.prose blockquote {
  border-inline-start: 3px solid var(--brand); background: var(--brand-soft);
  padding: 16px 22px; border-radius: 0 var(--r-sm) var(--r-sm) 0; color: var(--text-2);
}
.prose table { width: 100%; border-collapse: collapse; font-size: .9375rem; }
.prose th, .prose td { border: 1px solid var(--line); padding: 10px 14px; text-align: start; }
.prose th { background: var(--bg-soft); font-weight: 600; }
.prose code {
  background: var(--bg-soft-2); padding: 2px 7px; border-radius: 5px;
  font-size: .875em; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* 文章头 */
.article-head { max-width: 800px; margin: 0 auto clamp(28px, 4vw, 44px); }
.article-head h1 { font-size: clamp(1.6rem, 3.4vw, 2.375rem); line-height: 1.3; margin-bottom: 18px; }
.article-meta {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  font-size: .875rem; color: var(--text-3); padding-bottom: 22px; border-bottom: 1px solid var(--line-2);
}
.article-meta .cat {
  color: var(--brand-700); background: var(--brand-soft);
  padding: 3px 11px; border-radius: 100px; font-weight: 600; font-size: .8125rem;
}
.article-cover { max-width: 900px; margin: 0 auto clamp(28px, 4vw, 40px); }
.article-cover img { width: 100%; border-radius: var(--r-lg); box-shadow: var(--shadow); }
.article-body { max-width: 800px; margin-inline: auto; }

/* 上一篇 / 下一篇 */
.post-nav {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  max-width: 800px; margin: clamp(40px, 5vw, 56px) auto 0;
  padding-top: 32px; border-top: 1px solid var(--line-2);
}
.post-nav a, .post-nav span {
  border: 1px solid var(--line); border-radius: var(--r); padding: 16px 20px;
  transition: all .25s var(--ease); display: block;
}
.post-nav a:hover { border-color: var(--brand); background: var(--brand-soft); }
.post-nav .dir { font-size: .75rem; color: var(--text-3); margin-bottom: 5px; }
.post-nav .ttl {
  font-size: .9375rem; font-weight: 600; color: var(--ink);
  display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; line-clamp: 1; overflow: hidden;
}
.post-nav .is-disabled { opacity: .45; }
.post-nav .next { text-align: end; }

/* ---------- 19. 分页 ---------- */
.pagination { display: flex; justify-content: center; align-items: center; gap: 7px; margin-top: 48px; flex-wrap: wrap; }
.pagination a, .pagination span {
  min-width: 40px; height: 40px; padding: 0 12px; border-radius: 10px;
  display: grid; place-items: center; font-size: .9rem; font-weight: 500;
  border: 1px solid var(--line); color: var(--text-2); transition: all .2s;
}
.pagination a:hover { border-color: var(--ink); color: var(--ink); }
.pagination .cur { background: var(--ink); border-color: var(--ink); color: #fff; font-weight: 600; }
.pagination .dots { border: 0; }
.pagination .disabled { opacity: .4; pointer-events: none; }

/* ---------- 20. 表单 ---------- */
.form-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-xl);
  padding: clamp(26px, 3.5vw, 40px); box-shadow: var(--shadow);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .875rem; font-weight: 600; color: var(--text); }
.field label .req { color: var(--brand); margin-inline-start: 3px; }
.field input, .field select, .field textarea {
  padding: 12px 15px; border: 1.5px solid var(--line); border-radius: var(--r-sm);
  background: #fff; font-size: .9375rem; transition: all .2s; width: 100%;
}
.field textarea { resize: vertical; min-height: 108px; line-height: 1.6; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px rgba(255, 106, 26, .12);
}
.field input::placeholder, .field textarea::placeholder { color: #a8b1c0; }
.field select { appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23737f92' stroke-width='2.4' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; background-size: 15px;
  padding-inline-end: 40px;
}
.form-privacy { font-size: .8125rem; color: var(--text-3); margin-top: 14px; text-align: center; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

.form-alert {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 16px 18px; border-radius: var(--r); margin-bottom: 22px; font-size: .9375rem;
}
.form-alert.ok { background: #e8f8f2; color: #06694f; border: 1px solid #b8ecdb; }
.form-alert.err { background: #fdecec; color: #a91b1b; border: 1px solid #f7c9c9; }
.form-alert svg { width: 19px; height: 19px; flex: none; margin-top: 2px; }
.form-alert strong { display: block; margin-bottom: 2px; }

/* 联系信息卡 */
.contact-info { display: grid; gap: 16px; }
.contact-item {
  display: flex; gap: 15px; align-items: flex-start;
  padding: 20px; background: var(--bg-soft); border-radius: var(--r-lg);
}
.contact-item .ic {
  width: 42px; height: 42px; border-radius: 12px; background: #fff;
  display: grid; place-items: center; color: var(--brand-700); flex: none; box-shadow: var(--shadow-sm);
}
.contact-item .ic svg { width: 20px; height: 20px; }
.contact-item .k { font-size: .8125rem; color: var(--text-3); margin-bottom: 3px; }
.contact-item .v { font-weight: 600; color: var(--ink); font-size: .9688rem; word-break: break-word; }

/* ---------- 21. 页脚 ---------- */
.footer { background: var(--ink); color: rgba(255, 255, 255, .62); padding: clamp(48px, 6vw, 72px) 0 0; }
.footer-top { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; padding-bottom: 44px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { margin-top: 16px; font-size: .9rem; max-width: 330px; line-height: 1.75; }
.footer-social { display: flex; gap: 10px; margin-top: 22px; }
.footer-social a {
  width: 38px; height: 38px; border-radius: 11px;
  background: rgba(255, 255, 255, .07); display: grid; place-items: center;
  transition: all .25s; color: rgba(255, 255, 255, .7);
}
.footer-social a:hover { background: var(--brand); color: #fff; transform: translateY(-2px); }
.footer-social svg { width: 17px; height: 17px; }
.footer-col h4 {
  color: #fff; font-size: .875rem; font-weight: 700; margin-bottom: 18px;
  letter-spacing: .06em; text-transform: uppercase;
}
.footer-col ul { display: grid; gap: 11px; }
.footer-col a { font-size: .9rem; transition: color .2s; }
.footer-col a:hover { color: #fff; }
.footer-contact li { font-size: .9rem; display: flex; gap: 9px; align-items: flex-start; }
.footer-contact svg { width: 15px; height: 15px; margin-top: 5px; flex: none; opacity: .55; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08); padding: 22px 0 28px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  font-size: .8438rem;
}
.footer-bottom .links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 22. 悬浮咨询按钮（移动端） ---------- */
.float-cta {
  position: fixed; inset-inline-end: 20px; bottom: 20px; z-index: 80;
  display: none; align-items: center; gap: 8px;
  background: var(--brand); color: #fff; padding: 13px 22px;
  border-radius: 100px; font-weight: 600; font-size: .9375rem;
  box-shadow: var(--shadow-brand);
}
.float-cta svg { width: 18px; height: 18px; }

/* 回到顶部 */
.to-top {
  position: fixed; inset-inline-end: 22px; bottom: 88px; z-index: 79;
  width: 44px; height: 44px; border-radius: 50%; background: #fff;
  border: 1px solid var(--line); box-shadow: var(--shadow);
  display: grid; place-items: center; color: var(--text-2);
  opacity: 0; visibility: hidden; transform: translateY(10px); transition: all .3s var(--ease);
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { color: var(--brand); border-color: var(--brand-soft-2); }
.to-top svg { width: 18px; height: 18px; }

/* ---------- 23. 空状态 ---------- */
.empty { text-align: center; padding: 72px 20px; color: var(--text-3); }
.empty svg { width: 52px; height: 52px; margin: 0 auto 16px; opacity: .3; }

/* ---------- 24. 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ==========================================================================
   25. 响应式
   ========================================================================== */
@media (max-width: 1100px) {
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-col:last-child { grid-column: 2 / -1; }
}

@media (max-width: 960px) {
  :root { --header-h: 64px; }
  .nav-main { display: none; }
  .header-actions .btn { display: none; }
  .burger { display: grid; }
  .header-actions { margin-inline-start: auto; }
  body.menu-open { overflow: hidden; }

  .hero-layout { grid-template-columns: 1fr; gap: 44px; }
  .hero-visual { max-width: 520px; }
  .hero-sub { max-width: none; }

  .stats-bar { grid-template-columns: repeat(2, 1fr); margin-top: -40px; padding: 26px 10px; gap: 6px; }
  .stat:nth-child(3)::before, .stat:nth-child(1)::before { display: none; }
  .stat:nth-child(-n+2) { padding-bottom: 20px; border-bottom: 1px solid var(--line-2); }

  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .split--reverse .split-media { order: 0; }
  .plan-grid { grid-template-columns: 1fr; max-width: 480px; margin-inline: auto; }
  .cta-band { grid-template-columns: 1fr; text-align: center; }
  .cta-band .btn { justify-self: center; }
  .float-cta { display: flex; }
  .to-top { bottom: 82px; inset-inline-end: 18px; }
}

@media (max-width: 720px) {
  .container { padding-inline: 18px; }
  .scenario-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .post-nav { grid-template-columns: 1fr; }
  .post-nav .next { text-align: start; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-col:last-child { grid-column: auto; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .filter-search { margin-inline-start: 0; width: 100%; }
  .filter-search input, .filter-search input:focus { width: 100%; }
  .hero-actions .btn { width: 100%; }
  .article-meta { gap: 10px; }
}

@media (max-width: 420px) {
  .stats-bar { grid-template-columns: 1fr; }
  .stat::before { display: none !important; }
  .stat { padding-block: 14px; }
  .stat + .stat { border-top: 1px solid var(--line-2); }
  .stat:nth-child(-n+2) { border-bottom: 0; padding-bottom: 14px; }
}

/* 打印 */
@media print {
  .header, .footer, .float-cta, .to-top, .cta-band, .mobile-nav { display: none !important; }
  body { color: #000; }
  .prose { font-size: 12pt; }
}


/* ============ 苹果风格首页轮播（hero-carousel） ============ */
.hero-carousel { position: relative; overflow: hidden; padding: 0; min-height: clamp(560px, 74vh, 780px); }
.hc-track { position: relative; height: 100%; }
.hc-slide { position: absolute; inset: 0; z-index: 1; opacity: 0; visibility: hidden; transition: opacity .9s ease; }
.hc-slide.active { opacity: 1; visibility: visible; z-index: 2; }
.hc-bg { position: absolute; inset: 0; background-position: center; background-size: cover; will-change: transform; }
.hc-slide.active .hc-bg { animation: hcKenburns 7s ease-out forwards; }
@keyframes hcKenburns { from { transform: scale(1.08); } to { transform: scale(1); } }
.hc-bg--gradient { background: radial-gradient(120% 95% at 78% 10%, #22336b 0%, #14224a 46%, #0a1226 100%); }
.hc-shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,18,38,.30) 0%, rgba(10,18,38,.58) 100%); }
.hc-inner { position: relative; z-index: 3; padding-top: clamp(64px, 9vw, 116px); padding-bottom: clamp(72px, 10vw, 130px); }
.hero-carousel .hero-copy h1 { font-size: clamp(2.5rem, 5.4vw, 4.25rem); line-height: 1.06; letter-spacing: -.028em; margin: 22px 0 22px; white-space: nowrap; }
.hero-carousel .eyebrow { letter-spacing: .16em; }
.hero-carousel .hero-sub { font-size: clamp(1.05rem, 1.5vw, 1.25rem); color: rgba(255,255,255,.72); }
.hc-dots { position: absolute; left: 0; right: 0; bottom: 72px; z-index: 6; display: flex; justify-content: center; gap: 8px; }
.hc-dot { width: 8px; height: 8px; padding: 0; border: none; border-radius: 999px; background: rgba(255,255,255,.35); cursor: pointer; transition: width .3s ease, background .3s ease; }
.hc-dot:hover { background: rgba(255,255,255,.65); }
.hc-dot.active { width: 26px; background: #fff; }
.hc-arrow { position: absolute; top: 50%; transform: translateY(-50%); z-index: 6; width: 46px; height: 46px; border-radius: 50%; border: 1px solid rgba(255,255,255,.22); background: rgba(255,255,255,.08); color: #fff; cursor: pointer; display: grid; place-items: center; backdrop-filter: blur(8px); transition: background .2s ease, border-color .2s ease, transform .2s ease; }
.hc-arrow:hover { background: rgba(255,255,255,.2); border-color: rgba(255,255,255,.45); }
.hc-arrow:active { transform: translateY(-50%) scale(.94); }
.hc-arrow svg { width: 20px; height: 20px; }
.hc-arrow--prev { left: 20px; }
.hc-arrow--prev svg { transform: rotate(180deg); }
.hc-arrow--next { right: 20px; }
@media (max-width: 960px) {
  .hero-carousel { min-height: 980px; }
  .hc-arrow { display: none; }
  .hc-dots { bottom: 56px; }
  .hero-carousel .hero-copy h1 { font-size: clamp(2.125rem, 7vw, 2.75rem); }
}
@media (max-width: 420px) {
  .hero-carousel .hero-copy h1 { font-size: 1.875rem; }
}
@media (prefers-reduced-motion: reduce) {
  .hc-slide { transition: none; }
  .hc-slide.active .hc-bg { animation: none; }
}

/* �����б�������ɸѡ + ��ҳ */
.filter-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }
.filter-tab { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border: 1px solid var(--line); border-radius: 999px; font-size: .9rem; color: var(--text-2); transition: all .2s; }
.filter-tab:hover { border-color: var(--ink); color: var(--ink); }
.filter-tab.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }
.tab-count { font-size: .72rem; opacity: .65; }
.card-eyebrow { display: inline-block; font-size: .72rem; font-weight: 600; letter-spacing: .03em; color: #2563eb; margin-bottom: 7px; }
.result-count { color: var(--text-2); font-size: .85rem; margin: 4px 0 18px; }
.pagination .page-item.is-active { background: var(--ink); border-color: var(--ink); color: #fff; font-weight: 600; }
.pagination .page-item.is-disabled { opacity: .4; pointer-events: none; }
.pagination .page-prev svg, .pagination .page-next svg { width: 16px; height: 16px; }
.pagination .page-prev svg { transform: rotate(90deg); }
.pagination .page-next svg { transform: rotate(-90deg); }