/* ==========================================================================
   坤天量子 KUNTIAN QUANTUM — 企业展示型官网
   浅蓝色 · 科技简约风 · PC/移动端自适应
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root {
  --c-primary: #1677ff;
  --c-primary-d: #0b5fd9;
  --c-primary-l: #e8f2ff;
  --c-cyan: #00c8ff;
  --c-navy: #0a1f44;
  --c-navy-2: #0f2a5e;
  --c-navy-3: #14356f;
  --c-bg: #f5f9ff;
  --c-white: #ffffff;
  --c-text: #223352;
  --c-text-2: #5f7296;
  --c-text-3: #93a5c4;
  --c-line: #e2ecfb;
  --c-green: #16c784;
  --c-orange: #ffa63e;
  --grad-main: linear-gradient(135deg, #1677ff 0%, #00c8ff 100%);
  --grad-navy: linear-gradient(135deg, #0a1f44 0%, #123f8f 100%);
  --shadow-sm: 0 2px 10px rgba(22, 119, 255, 0.08);
  --shadow-md: 0 8px 30px rgba(22, 119, 255, 0.12);
  --shadow-lg: 0 18px 50px rgba(10, 31, 68, 0.16);
  --radius: 14px;
  --radius-lg: 20px;
  --header-h: 74px;
  --font: "Microsoft YaHei", "PingFang TC", "PingFang SC", "Noto Sans TC", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 基础重置 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-white);
  font-size: 15px;
  line-height: 1.75;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .25s; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }
::selection { background: rgba(22, 119, 255, .18); }

/* ---------- 通用工具 ---------- */
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section.section-tight { padding: 64px 0; }
.bg-white { background: var(--c-white); }
.bg-light { background: var(--c-bg); }
.bg-navy { background: var(--c-navy); color: #dfe9fb; }
.bg-grad { background: var(--grad-navy); color: #dfe9fb; }
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; } .mb-24 { margin-bottom: 24px; }

.sec-head { max-width: 760px; margin: 0 auto 52px; text-align: center; }
.sec-head.left { margin-left: 0; text-align: left; }
.sec-kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 2px;
  color: var(--c-primary); text-transform: uppercase;
  padding: 6px 16px; border-radius: 999px;
  background: var(--c-primary-l); border: 1px solid #cfe3ff;
  margin-bottom: 16px;
}
.sec-kicker::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--c-cyan); box-shadow: 0 0 8px var(--c-cyan); }
.bg-navy .sec-kicker, .bg-grad .sec-kicker { background: rgba(22,119,255,.18); border-color: rgba(0,200,255,.4); color: #7ec9ff; }
.sec-title { font-size: 34px; font-weight: 700; color: var(--c-navy); line-height: 1.3; letter-spacing: 1px; }
.bg-navy .sec-title, .bg-grad .sec-title { color: #fff; }
.sec-sub { margin-top: 14px; font-size: 15px; color: var(--c-text-2); line-height: 1.9; }
.bg-navy .sec-sub, .bg-grad .sec-sub { color: #a9c1e8; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: 999px;
  font-size: 15px; font-weight: 600; letter-spacing: 1px;
  transition: all .3s ease; white-space: nowrap;
}
.btn-primary { background: var(--grad-main); color: #fff; box-shadow: 0 6px 20px rgba(22,119,255,.35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(22,119,255,.45); }
.btn-ghost { border: 1px solid rgba(255,255,255,.55); color: #fff; background: rgba(255,255,255,.06); backdrop-filter: blur(6px); }
.btn-ghost:hover { background: rgba(255,255,255,.16); border-color: #fff; transform: translateY(-2px); }
.btn-outline { border: 1px solid var(--c-primary); color: var(--c-primary); background: transparent; }
.btn-outline:hover { background: var(--c-primary); color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 8px 18px; font-size: 13px; }

/* ---------- 顶部栏 ---------- */
.topbar {
  background: var(--c-navy); color: #a9c1e8; font-size: 13px;
  letter-spacing: .4px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.topbar-inner { display: flex; justify-content: space-between; align-items: center; height: 40px; }
.topbar a:hover { color: #fff; }
.topbar-right { display: flex; gap: 26px; align-items: center; }

/* ---------- 页头导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,.92); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--c-line);
  transition: box-shadow .3s;
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(10,31,68,.08); }
.header-inner { display: flex; align-items: center; height: var(--header-h); gap: 40px; }

/* Logo：单张长方形图片 */
.logo { display: flex; align-items: center; flex-shrink: 0; }
.logo-img {
  height: 62px; width: auto; max-width: 360px; display: block;
  object-fit: contain; border-radius: 8px;
}
.logo-name { font-size: 24px; font-weight: 700; color: var(--c-navy); letter-spacing: 3px; }

.main-nav { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.nav-item { position: relative; }
.nav-link {
  display: flex; align-items: center; gap: 5px;
  padding: 10px 15px; font-size: 15px; font-weight: 600;
  color: var(--c-text); border-radius: 8px; position: relative;
}
.nav-link::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 4px; height: 2.5px;
  border-radius: 2px; background: var(--grad-main);
  transform: scaleX(0); transform-origin: left; transition: transform .3s;
}
.nav-link:hover { color: var(--c-primary); }
.nav-item.active .nav-link { color: var(--c-primary); }
.nav-item.active .nav-link::after, .nav-link:hover::after { transform: scaleX(1); }
.nav-item.has-drop .nav-link .arrow { font-size: 10px; transition: transform .3s; }
.nav-item.has-drop:hover .nav-link .arrow { transform: rotate(180deg); }

.dropdown {
  position: absolute; top: calc(100% + 12px); left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 196px; background: #fff; border-radius: 12px;
  border: 1px solid var(--c-line); box-shadow: var(--shadow-lg);
  padding: 8px; opacity: 0; visibility: hidden; transition: all .3s;
}
.nav-item.has-drop:hover .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown a {
  display: block; padding: 9px 14px; font-size: 14px; border-radius: 8px;
  color: var(--c-text); font-weight: 500;
}
.dropdown a:hover { background: var(--c-primary-l); color: var(--c-primary); }


.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--c-line); background: #fff; flex-direction: column; align-items: center; justify-content: center; gap: 5px; margin-left: 8px; }
.nav-toggle span { width: 20px; height: 2px; background: var(--c-navy); border-radius: 2px; transition: all .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端抽屉导航（全屏覆盖） */
.mobile-nav {
  position: fixed; inset: 0; z-index: 1100; background: rgba(10,31,68,.65);
  opacity: 0; visibility: hidden; transition: opacity .3s;
}
.mobile-nav.open { opacity: 1; visibility: visible; }
.mobile-nav-panel {
  position: absolute; inset: 0;
  background: #fff; padding: 20px 22px; overflow-y: auto;
  transform: translateY(-12px); transition: transform .35s ease;
}
.mobile-nav.open .mobile-nav-panel { transform: translateY(0); }
.mobile-nav-panel .m-close { margin-left: auto; display: flex; width: 36px; height: 36px; align-items: center; justify-content: center; border-radius: 8px; background: var(--c-bg); font-size: 18px; color: var(--c-navy); }
.mobile-nav-panel .m-group { margin-top: 18px; }
.mobile-nav-panel .m-title { font-size: 13px; font-weight: 700; letter-spacing: 2px; color: var(--c-text-3); margin-bottom: 6px; }
.mobile-nav-panel .m-link { display: block; padding: 11px 6px; font-size: 16px; font-weight: 600; color: var(--c-text); border-bottom: 1px solid var(--c-line); }
.mobile-nav-panel .m-link:hover { color: var(--c-primary); }
.mobile-nav-panel .m-sub { padding-left: 14px; }
.mobile-nav-panel .m-sub a { display: block; padding: 8px 6px; font-size: 14px; color: var(--c-text-2); border-bottom: 1px dashed var(--c-line); }
.mobile-nav-panel .m-sub a:hover { color: var(--c-primary); }
.mobile-nav-panel .m-cta { margin-top: 22px; }

/* ---------- 首页 Hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--c-navy); }
.hero-bg { position: absolute; inset: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .9; }
.hero-veil { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,31,68,.88) 0%, rgba(10,31,68,.55) 45%, rgba(10,31,68,.25) 100%); }
.hero-inner { position: relative; z-index: 2; padding: 72px 0 60px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: center; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; letter-spacing: 3px; color: #8fd4ff;
  padding: 7px 18px; border: 1px solid rgba(0,200,255,.4); border-radius: 999px;
  background: rgba(0,200,255,.08); margin-bottom: 26px;
}
.hero-kicker .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--c-cyan); box-shadow: 0 0 12px var(--c-cyan); animation: pulse 2s infinite; }
.hero-title { font-size: 46px; font-weight: 700; color: #fff; line-height: 1.32; letter-spacing: 2px; }
.hero-title .grad {
  background: linear-gradient(90deg, #4da3ff, #00c8ff);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-desc { margin-top: 22px; font-size: 16px; color: #b9cdf0; line-height: 2; max-width: 560px; }
.hero-actions { margin-top: 36px; display: flex; gap: 16px; flex-wrap: wrap; }
.hero-meta { margin-top: 48px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 620px; border-top: 1px solid rgba(255,255,255,.12); padding-top: 28px; }
.hero-meta .hm-num { font-size: 30px; font-weight: 700; color: #fff; letter-spacing: 1px; }
.hero-meta .hm-num em { font-style: normal; color: var(--c-cyan); font-size: 20px; }
.hero-meta .hm-label { font-size: 12.5px; color: #8fa9d4; margin-top: 2px; letter-spacing: 1px; }

/* Hero 右侧可视化 */
.hero-visual { position: relative; height: 350px; display: flex; align-items: center; justify-content: center; }
.orbit-wrap { position: relative; width: 320px; height: 320px; }
.orbit-ring { position: absolute; inset: 0; border: 1px solid rgba(0,200,255,.35); border-radius: 50%; }
.orbit-ring.r2 { inset: 48px; border-style: dashed; animation: spin 26s linear infinite; }
.orbit-ring.r3 { inset: 96px; border-color: rgba(120,190,255,.4); }
.orbit-ring.r4 { inset: 148px; border-color: rgba(0,200,255,.22); animation: spin 18s linear infinite reverse; }
.orbit-core {
  position: absolute; inset: 86px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #3ea0ff, #0a4fd0 70%);
  box-shadow: 0 0 60px rgba(22,119,255,.75), inset 0 0 30px rgba(255,255,255,.25);
  display: flex; align-items: center; justify-content: center; flex-direction: column;
  overflow: hidden; white-space: nowrap;
}
.orbit-core span { color: #fff; font-weight: 700; letter-spacing: 2px; font-size: 14px; }
.orbit-core small { color: #bfe0ff; font-size: 9.5px; letter-spacing: 2px; margin-top: 3px; }
.orbit-dot { position: absolute; width: 14px; height: 14px; border-radius: 50%; background: var(--c-cyan); box-shadow: 0 0 16px var(--c-cyan); }
.orbit-dot.d2 { width: 10px; height: 10px; background: #8fd4ff; }
.float-tag {
  position: absolute; padding: 10px 16px; border-radius: 12px;
  background: rgba(13,34,74,.85); border: 1px solid rgba(0,200,255,.35);
  color: #cfe6ff; font-size: 12.5px; letter-spacing: 1px; backdrop-filter: blur(6px);
  box-shadow: 0 10px 30px rgba(0,0,0,.3); white-space: nowrap;
}
.float-tag b { color: #fff; }
.float-tag.t1 { top: 6px; left: 10px; animation: float 5s ease-in-out infinite; }
.float-tag.t2 { top: 48px; right: 10px; animation: float 6s ease-in-out .8s infinite; }
.float-tag.t3 { bottom: 6px; left: 10px; animation: float 5.4s ease-in-out 1.4s infinite; }
.float-tag.t4 { bottom: 48px; right: 10px; animation: float 6.4s ease-in-out 2s infinite; }

/* ---------- 内页横幅 ---------- */
.page-banner { position: relative; height: 330px; display: flex; align-items: center; overflow: hidden; background: var(--c-navy); }
.page-banner img.bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.page-banner .veil { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10,31,68,.9), rgba(10,31,68,.45)); }
.page-banner .container { position: relative; z-index: 2; }
.banner-title { font-size: 38px; font-weight: 700; color: #fff; letter-spacing: 3px; }
.banner-en { font-size: 13px; letter-spacing: 4px; color: #7ec9ff; text-transform: uppercase; margin-top: 8px; }
.banner-crumb { margin-top: 16px; display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: #a9c1e8; padding: 7px 16px; border-radius: 999px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14); }
.banner-crumb a:hover { color: #fff; }
.banner-crumb .sep { color: #5f86bd; }

/* ---------- 特性卡片 ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }

.feature-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg);
  padding: 34px 30px; position: relative; overflow: hidden;
  display: flex; flex-wrap: wrap; align-items: center;
  transition: all .35s ease;
}
.feature-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad-main); transform: scaleX(0); transform-origin: left; transition: transform .4s;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-card:hover::before { transform: scaleX(1); }
.feature-card .icon-wrap {
  flex: 0 0 58px; width: 58px; height: 58px; border-radius: 16px; display: flex; align-items: center; justify-content: center;
  background: var(--grad-main); color: #fff; box-shadow: 0 8px 20px rgba(22,119,255,.3);
  margin-right: 16px; margin-bottom: 0;
}
.feature-card h3 { flex: 1 1 auto; min-width: 0; font-size: 19px; font-weight: 700; color: var(--c-navy); margin: 0; }
.feature-card p { flex: 1 1 100%; margin: 14px 0 0; font-size: 14px; color: var(--c-text-2); line-height: 1.9; }
.feature-card .fc-more { flex: 1 1 100%; display: inline-flex; align-items: center; gap: 5px; margin: 16px 0 0; font-size: 13.5px; font-weight: 600; color: var(--c-primary); }
.feature-card .list-check { flex: 1 1 100%; margin-left: 0; }

/* SVG 图标转 <img> 后通用样式 */
.icon-svg { display: block; flex: none; max-width: none; }

/* grid-4 窄列紧凑适配：保证图标+标题同行、标题不换行 */
.grid-4 .feature-card { padding: 28px 22px; }
.grid-4 .feature-card .icon-wrap { flex-basis: 48px; width: 48px; height: 48px; border-radius: 12px; margin-right: 12px; }
.grid-4 .feature-card h3 { font-size: 17px; }
.grid-4 .feature-card p { margin-top: 12px; }
.grid-4 .feature-card .fc-more { margin-top: 14px; }

/* 数字统计 */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item { display: block; text-decoration: none; color: inherit; text-align: center; padding: 34px 20px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--c-line); transition: all .3s; }
.stat-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.stat-item .num { font-size: 40px; font-weight: 800; color: var(--c-primary); line-height: 1.2; letter-spacing: 1px; }
.stat-item .num .unit { font-size: 18px; font-weight: 700; }
.stat-item .label { margin-top: 8px; font-size: 14px; color: var(--c-text-2); }
.pd-stats .label { font-size: 16px; font-weight: 700; color: var(--c-navy); }
.stat-item .sub { margin-top: 4px; font-size: 12px; color: var(--c-text-3); }
.stat-item.dark { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.12); }
.stat-item.dark .num { color: #fff; }
.stat-item.dark .label { color: #a9c1e8; }
.stat-item.dark .sub { color: #6d89b8; }

/* 收费层级卡片（大厂风） */
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; align-items: stretch; }
.pt-card { position: relative; display: flex; flex-direction: column; background: linear-gradient(165deg, #0d2f66 0%, #0a1d42 100%); border: 1px solid rgba(255,255,255,.12); border-radius: 20px; padding: 30px 24px 28px; color: #fff; transition: all .4s; }
.pt-card::before { content: ""; position: absolute; top: -60px; right: -60px; width: 170px; height: 170px; border-radius: 50%; background: radial-gradient(circle, rgba(0,212,255,.22), transparent 70%); pointer-events: none; }
.pt-card:hover { transform: translateY(-8px); border-color: rgba(0,200,255,.45); box-shadow: 0 24px 50px rgba(10,29,66,.35); }
.pt-card.featured { background: linear-gradient(165deg, #1b3f85 0%, #102a5e 100%); border-color: rgba(0,200,255,.55); box-shadow: 0 0 0 1px rgba(0,200,255,.35), 0 22px 50px rgba(22,119,255,.28); }
.pt-top { display: flex; justify-content: space-between; align-items: center; }
.pt-ico { width: 52px; height: 52px; border-radius: 15px; display: inline-flex; align-items: center; justify-content: center; color: #fff; }
.ico-a { background: linear-gradient(135deg, #00d4ff, #1677ff); box-shadow: 0 8px 20px rgba(0,212,255,.35); }
.ico-b { background: linear-gradient(135deg, #1677ff, #7c5cff); box-shadow: 0 8px 20px rgba(22,119,255,.35); }
.ico-c { background: linear-gradient(135deg, #7c5cff, #ff4d8d); box-shadow: 0 8px 20px rgba(124,92,255,.4); }
.ico-d { background: linear-gradient(135deg, #ffb25c, #ff7a4d); box-shadow: 0 8px 20px rgba(255,178,92,.35); }
.pt-badge { font-size: 11px; font-weight: 700; letter-spacing: 1.5px; color: #8fd6ff; border: 1px solid rgba(0,200,255,.35); background: rgba(0,200,255,.08); padding: 4px 12px; border-radius: 999px; }
.pt-flag { position: absolute; top: -13px; left: 26px; z-index: 2; font-size: 12px; font-weight: 800; letter-spacing: 1px; padding: 5px 14px; border-radius: 999px; color: #05234a; background: linear-gradient(90deg, #00e0ff, #4facfe); box-shadow: 0 6px 18px rgba(0,212,255,.45); }
.pt-name { margin-top: 20px; font-size: 17px; font-weight: 700; letter-spacing: 1px; }
.pt-price { margin-top: 10px; font-size: 30px; font-weight: 800; line-height: 1.15; letter-spacing: .5px; }
.pt-cur { font-size: 20px; vertical-align: 10px; margin-right: 2px; color: #7ec9ff; }
.pt-per { font-size: 12px; font-weight: 600; color: #8aa3cc; margin-left: 6px; }
.pt-desc { margin-top: 10px; font-size: 13px; color: #a9c1e8; line-height: 1.8; min-height: 47px; }
.pt-list { margin-top: 16px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.1); list-style: none; display: flex; flex-direction: column; gap: 10px; }
.pt-list li { display: flex; align-items: center; gap: 10px; font-size: 13px; color: #cfe0fa; line-height: 1.5; }
.pt-list svg { width: 16px; height: 16px; flex: none; color: #00d4ff; }
.pt-btn { margin-top: auto; padding: 12px 0; text-align: center; border-radius: 12px; font-size: 14px; font-weight: 700; letter-spacing: 1px; color: #05234a; background: linear-gradient(90deg, #00e0ff, #4facfe); box-shadow: 0 10px 24px rgba(0,212,255,.3); transition: all .3s; }
.pt-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(0,212,255,.45); }


/* 课程骨架 · 学习路径 */
.path-track { display: flex; align-items: center; justify-content: center; gap: 18px; margin: 16px 0 42px; }
.path-track .pt-dot { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; color: var(--c-text-2); letter-spacing: 1px; }
.path-track .pt-dot i { font-style: normal; width: 30px; height: 30px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; background: #e6edf7; color: var(--c-text-3); font-size: 12px; transition: all .3s; }
.path-track .pt-dot.on i { background: linear-gradient(135deg, #00d4ff, #1677ff); color: #fff; box-shadow: 0 6px 14px rgba(22,119,255,.3); }
.path-track .pt-dot.on { color: var(--c-navy); }
.path-track .pt-line { width: 90px; height: 2px; background: repeating-linear-gradient(90deg, #c7d6ea 0 6px, transparent 6px 12px); }
.path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px; align-items: stretch; }
.path-card { position: relative; background: #fff; border: 1px solid var(--c-line); border-radius: 20px; padding: 32px 28px 26px; transition: all .4s; }
.path-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; border-radius: 20px 20px 0 0; background: linear-gradient(90deg, #00d4ff, #1677ff); }
.path-card:nth-child(2)::before { background: linear-gradient(90deg, #1677ff, #7c5cff); }
.path-card:nth-child(3)::before { background: linear-gradient(90deg, #7c5cff, #ff4d8d); }
.path-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.path-head { display: flex; align-items: center; gap: 16px; }
.path-num { flex: none; width: 46px; height: 46px; border-radius: 13px; display: inline-flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 800; color: #fff; }
.path-num.n1 { background: linear-gradient(135deg, #00d4ff, #1677ff); box-shadow: 0 8px 18px rgba(0,212,255,.3); }
.path-num.n2 { background: linear-gradient(135deg, #1677ff, #7c5cff); box-shadow: 0 8px 18px rgba(124,92,255,.3); }
.path-num.n3 { background: linear-gradient(135deg, #7c5cff, #ff4d8d); box-shadow: 0 8px 18px rgba(255,77,141,.3); }
.path-info h3 { font-size: 19px; font-weight: 700; color: var(--c-navy); letter-spacing: 1px; }
.path-tag { display: block; margin-top: 3px; font-size: 11.5px; color: var(--c-text-3); letter-spacing: 1px; }
.path-desc { margin-top: 18px; font-size: 14px; color: var(--c-text-2); line-height: 1.9; }
.path-tags { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--c-line); display: flex; flex-wrap: wrap; gap: 8px; }
.path-tags span { font-size: 12px; font-weight: 600; color: var(--c-primary); background: rgba(22,119,255,.07); border: 1px solid rgba(22,119,255,.16); padding: 4px 11px; border-radius: 999px; }
.path-card:not(:last-child)::after { content: ""; position: absolute; top: 50%; right: -27px; z-index: 2; width: 18px; height: 18px; border-top: 2px solid #b9cce6; border-right: 2px solid #b9cce6; transform: translateY(-50%) rotate(45deg); background: var(--c-bg); }

/* 双栏内容 */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split-img { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); position: relative; }
.split-img img { width: 100%; height: 100%; object-fit: cover; }
.split-img .float-badge {
  position: absolute; left: 24px; bottom: 24px; padding: 12px 20px; border-radius: 14px;
  background: rgba(10,31,68,.85); backdrop-filter: blur(8px); color: #fff; border: 1px solid rgba(0,200,255,.4);
  font-size: 13px; letter-spacing: 1px;
}
.split-body h3 { font-size: 26px; font-weight: 700; color: var(--c-navy); line-height: 1.45; margin-bottom: 18px; }
.split-body p { color: var(--c-text-2); line-height: 2; margin-bottom: 14px; }

/* 勾选清单 */
.list-check li { position: relative; padding: 8px 0 8px 34px; color: var(--c-text); line-height: 1.8; }
.list-check li::before {
  content: "✓"; position: absolute; left: 0; top: 8px;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--grad-main); color: #fff; font-size: 12px;
  display: flex; align-items: center; justify-content: center;
}

/* 产品卡片 */
.product-card {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); overflow: hidden;
  transition: all .35s; display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.product-card .pc-img { position: relative; overflow: hidden; aspect-ratio: 4/2.6; }
.product-card .pc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.product-card:hover .pc-img img { transform: scale(1.06); }
.product-card .pc-tag {
  position: absolute; top: 14px; left: 14px; padding: 4px 12px; border-radius: 999px;
  background: rgba(10,31,68,.75); color: #7ec9ff; font-size: 11.5px; letter-spacing: 1px; backdrop-filter: blur(4px);
}
.product-card .pc-body { padding: 22px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.product-card h3 { font-size: 18px; font-weight: 700; color: var(--c-navy); }
.product-card p { margin-top: 8px; font-size: 13.5px; color: var(--c-text-2); line-height: 1.85; flex: 1; }
.product-card .pc-spec { margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--c-line); font-size: 12.5px; color: var(--c-text-3); display: flex; gap: 16px; flex-wrap: wrap; }
.product-card .pc-spec span b { color: var(--c-primary); font-weight: 600; }

/* 新闻卡片 */
.news-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); overflow: hidden; transition: all .35s; display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.news-card .nc-img { position: relative; overflow: hidden; aspect-ratio: 16/9; }
.news-card .nc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.news-card:hover .nc-img img { transform: scale(1.07); }
.news-card .nc-date { position: absolute; left: 14px; bottom: -14px; background: var(--grad-main); color: #fff; border-radius: 10px; padding: 6px 14px; font-size: 12px; font-weight: 600; box-shadow: 0 6px 16px rgba(22,119,255,.35); }
.news-card .nc-body { padding: 26px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.news-card h3 { font-size: 16.5px; font-weight: 700; color: var(--c-navy); line-height: 1.5; flex: 1; }
.news-card h3 a:hover { color: var(--c-primary); }
.news-card p { margin-top: 10px; font-size: 13px; color: var(--c-text-2); line-height: 1.8; }
.news-card .nc-more { margin-top: 14px; font-size: 13px; font-weight: 600; color: var(--c-primary); display: inline-flex; align-items: center; gap: 4px; }

/* 团队卡片 */
.team-card { display: block; text-decoration: none; color: inherit; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); overflow: hidden; transition: all .35s; text-align: center; }
.team-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.team-card .tc-img { aspect-ratio: 1/1.15; overflow: hidden; position: relative; }
.team-card .tc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.team-card:hover .tc-img img { transform: scale(1.05); }
.team-card .tc-body { padding: 20px 18px 24px; }
.team-card h3 { font-size: 17px; font-weight: 700; color: var(--c-navy); }
.team-card .tc-role { font-size: 12.5px; color: var(--c-primary); letter-spacing: 1px; margin-top: 4px; }
.team-card p { margin-top: 10px; font-size: 13px; color: var(--c-text-2); line-height: 1.8; }
.team-card .tc-more { display: inline-flex; align-items: center; gap: 5px; margin-top: 14px; font-size: 13px; font-weight: 600; color: var(--c-primary); transition: gap .25s; }
.team-card:hover .tc-more { gap: 9px; }
.stat-item .sm-more { display: inline-block; margin-top: 14px; font-size: 12.5px; font-weight: 600; color: var(--c-cyan); opacity: .85; transition: opacity .25s, transform .25s; }
.stat-item:hover .sm-more { opacity: 1; transform: translateX(3px); }

/* 成员详情页 */
.md-head { display: flex; gap: 34px; align-items: center; padding: 10px 0 36px; border-bottom: 1px solid var(--c-line); }
.md-avatar { width: 150px; height: 150px; flex-shrink: 0; border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-md); }
.md-avatar img { width: 100%; height: 100%; object-fit: cover; }
.md-kicker { font-size: 12.5px; font-weight: 600; letter-spacing: 2px; color: var(--c-primary); text-transform: uppercase; }
.md-name { margin-top: 8px; font-size: 32px; font-weight: 800; color: var(--c-navy); line-height: 1.3; }
.md-tagline { margin-top: 10px; font-size: 15px; color: var(--c-text-2); line-height: 1.8; }
.md-tags { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.md-tags span { padding: 6px 14px; border-radius: 999px; background: var(--c-primary-l); border: 1px solid #cfe3ff; color: var(--c-primary); font-size: 12.5px; font-weight: 600; }
.md-body { padding-top: 36px; max-width: 900px; }
.md-body h3 { font-size: 19px; font-weight: 700; color: var(--c-navy); margin-top: 34px; padding-bottom: 10px; position: relative; }
.md-body h3::after { content: ""; position: absolute; left: 0; bottom: 0; width: 34px; height: 2.5px; border-radius: 2px; background: var(--grad-main); }
.md-body p { margin-top: 14px; font-size: 14.5px; color: var(--c-text-2); line-height: 2; }
.md-ach { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 18px; }
.ma-item { background: var(--c-bg); border: 1px solid var(--c-line); border-radius: 14px; padding: 20px; transition: all .3s; }
.ma-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.ma-item b { display: block; font-size: 14.5px; font-weight: 700; color: var(--c-navy); }
.ma-item p { margin-top: 8px; font-size: 12.5px; line-height: 1.8; }
.md-back { margin-top: 40px; }

/* 合作品牌行 */
.partner-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 18px; }
.partner-item {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 26px; border-radius: 12px; background: #fff;
  border: 1px solid var(--c-line); font-size: 14.5px; font-weight: 600; color: var(--c-navy);
  transition: all .3s;
}
.partner-item .p-icon { width: 26px; height: 26px; border-radius: 8px; background: var(--grad-main); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 12px; }
.partner-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(22,119,255,.35); }
.partner-item .p-tag { font-size: 11px; color: var(--c-text-3); font-weight: 400; }

/* CTA 横幅 */
.cta-band { position: relative; overflow: hidden; background: var(--grad-navy); border-radius: var(--radius-lg); padding: 56px 60px; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-band::before { content: ""; position: absolute; right: -60px; top: -60px; width: 260px; height: 260px; border-radius: 50%; background: radial-gradient(circle, rgba(0,200,255,.25), transparent 70%); }
.cta-band h3 { font-size: 26px; font-weight: 700; color: #fff; letter-spacing: 1px; position: relative; }
.cta-band p { margin-top: 8px; color: #a9c1e8; font-size: 14.5px; position: relative; }

/* ---------- Tabs ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 40px; }
.tab-btn {
  padding: 11px 26px; border-radius: 999px; font-size: 14.5px; font-weight: 600;
  color: var(--c-text-2); background: #fff; border: 1px solid var(--c-line); transition: all .3s;
}
.tab-btn:hover { color: var(--c-primary); border-color: var(--c-primary); }
.tab-btn.active { background: var(--grad-main); color: #fff; border-color: transparent; box-shadow: 0 6px 18px rgba(22,119,255,.35); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp .5s ease; }

/* ---------- 数据表格 ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--c-line); background: #fff; box-shadow: var(--shadow-sm); }
.data-table { width: 100%; border-collapse: collapse; min-width: 720px; font-size: 14px; }
.data-table th {
  background: var(--grad-navy); color: #fff; text-align: left;
  padding: 15px 20px; font-size: 16px; font-weight: 700; letter-spacing: 1px; white-space: nowrap;
}
.data-table td { padding: 15px 20px; border-bottom: 1px solid var(--c-line); color: var(--c-text); vertical-align: top; line-height: 1.8; }
.data-table tbody tr { transition: background .25s; }
.data-table tbody tr:hover { background: var(--c-primary-l); }
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table td b { color: var(--c-navy); }
.data-table .hl { color: var(--c-primary); font-weight: 600; }
.data-table.table-center th,
.data-table.table-center td { text-align: center; font-weight: 600; }
.data-table.table-head-center th { text-align: center; font-weight: 800; }
.table-note { margin-top: 12px; font-size: 12.5px; color: var(--c-text-3); }

/* ---------- 时间线 ---------- */
.timeline { position: relative; max-width: 900px; margin: 0 auto; padding: 20px 0; }
.timeline::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; background: linear-gradient(180deg, transparent, var(--c-primary) 12%, var(--c-primary) 88%, transparent); transform: translateX(-50%); }
.tl-item { position: relative; width: 50%; padding: 0 46px 56px; }
.tl-item:nth-child(odd) { left: 0; text-align: right; }
.tl-item:nth-child(even) { left: 50%; text-align: left; }
.tl-dot {
  position: absolute; top: 6px; width: 16px; height: 16px; border-radius: 50%;
  background: #fff; border: 4px solid var(--c-primary); box-shadow: 0 0 0 5px rgba(22,119,255,.15), 0 0 18px rgba(22,119,255,.5);
}
.tl-item:nth-child(odd) .tl-dot { right: -8px; }
.tl-item:nth-child(even) .tl-dot { left: -8px; }
.tl-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 24px 26px; transition: all .3s; box-shadow: var(--shadow-sm); }
.tl-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.tl-card .tl-year { font-size: 15px; font-weight: 800; color: var(--c-primary); letter-spacing: 1px; }
.tl-card h3 { font-size: 18px; font-weight: 700; color: var(--c-navy); margin: 6px 0 8px; }
.tl-card p { font-size: 13.5px; color: var(--c-text-2); line-height: 1.85; }

/* ---------- 手风琴 ---------- */
.acc { max-width: 900px; margin: 0 auto; }
.acc-item { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; transition: box-shadow .3s; }
.acc-item.open { box-shadow: var(--shadow-md); border-color: rgba(22,119,255,.35); }
.acc-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; cursor: pointer; font-size: 15.5px; font-weight: 600; color: var(--c-navy); }
.acc-head .acc-ico { flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%; background: var(--c-primary-l); color: var(--c-primary); display: flex; align-items: center; justify-content: center; font-size: 16px; transition: all .3s; }
.acc-item.open .acc-ico { background: var(--grad-main); color: #fff; transform: rotate(45deg); }
.acc-body { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.acc-body-inner { padding: 0 24px 22px; font-size: 14px; color: var(--c-text-2); line-height: 2; }
.acc-body-inner ul { margin-top: 8px; }
.acc-body-inner li { position: relative; padding-left: 18px; }
.acc-body-inner li::before { content: "▸"; position: absolute; left: 0; color: var(--c-primary); }

/* ---------- 流程步骤 ---------- */
.process { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; counter-reset: step; min-width: 0; }
.process-2col { grid-template-columns: repeat(2, 1fr); }
.process .ps-item { position: relative; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 34px 28px; transition: all .35s; min-width: 0; overflow-wrap: anywhere; word-break: break-word; display: flex; flex-wrap: wrap; align-items: center; }
.process .ps-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.process .ps-item::before {
  counter-increment: step; content: "0" counter(step);
  position: absolute; top: 18px; right: 22px; font-size: 44px; font-weight: 800; color: rgba(22,119,255,.1); line-height: 1;
}
.process.ps-nonum .ps-item::before { content: none; }
.process .ps-ico { flex: 0 0 54px; width: 54px; height: 54px; border-radius: 14px; background: var(--c-primary-l); color: var(--c-primary); display: flex; align-items: center; justify-content: center; margin-right: 16px; margin-bottom: 0; }
.process h3 { flex: 1 1 auto; min-width: 0; font-size: 18px; font-weight: 700; color: var(--c-navy); margin: 0; }
.process .ps-period { order: 3; flex: 0 0 auto; display: inline-block; font-size: 12px; color: var(--c-cyan); background: rgba(0,200,255,.1); padding: 3px 12px; border-radius: 999px; margin: 12px auto 0 0; font-weight: 600; letter-spacing: 1px; }
.process p { order: 4; flex: 1 1 100%; font-size: 13.5px; color: var(--c-text-2); line-height: 1.9; margin: 12px 0 0; }

/* ---------- 新闻列表页 ---------- */
.news-list-item { display: flex; gap: 24px; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 20px; transition: all .3s; }
.news-list-item:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.news-list-item .nli-img { width: 240px; flex-shrink: 0; border-radius: 10px; overflow: hidden; }
.news-list-item .nli-img img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 16/9; }
.news-list-item .nli-body { flex: 1; display: flex; flex-direction: column; }
.news-list-item .nli-date { font-size: 12.5px; color: var(--c-text-3); letter-spacing: 1px; }
.news-list-item h3 { font-size: 18px; font-weight: 700; color: var(--c-navy); margin-top: 6px; }
.news-list-item h3 a:hover { color: var(--c-primary); }
.news-list-item p { margin-top: 8px; font-size: 13.5px; color: var(--c-text-2); line-height: 1.85; flex: 1; }
.news-list-item .nli-tag { align-self: flex-start; margin-top: 12px; font-size: 12px; color: var(--c-primary); background: var(--c-primary-l); padding: 3px 12px; border-radius: 999px; }

/* ---------- 表单 ---------- */
.form-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow-sm); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--c-navy); margin-bottom: 8px; }
.field label .req { color: #ff5a5a; }
.input, .textarea, .select {
  width: 100%; padding: 12px 16px; border-radius: 10px;
  border: 1px solid var(--c-line); background: var(--c-bg);
  font-size: 14.5px; color: var(--c-text); outline: none; transition: all .3s;
}
.input:focus, .textarea:focus, .select:focus { border-color: var(--c-primary); background: #fff; box-shadow: 0 0 0 4px rgba(22,119,255,.1); }
.textarea { min-height: 130px; resize: vertical; }
.field-full { grid-column: 1 / -1; }

/* 联系信息块 */
.contact-block { padding: 26px; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); transition: all .3s; }
.contact-block:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.contact-block .cb-top { display: flex; align-items: center; gap: 14px; }
.contact-block .cb-ico { width: 44px; height: 44px; flex-shrink: 0; border-radius: 12px; background: var(--grad-main); color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 18px rgba(22,119,255,.3); }
.contact-block h3 { margin: 0; font-size: 15.5px; font-weight: 700; color: var(--c-navy); }
.contact-block p { margin-top: 16px; font-size: 13.5px; color: var(--c-text-2); line-height: 1.8; }
.contact-block p b { color: var(--c-primary); font-weight: 600; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--c-navy); color: #9db6de; font-size: 13.5px; }
.footer-top { padding: 60px 0 40px; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 44px; }
.footer-brand .logo-name { color: #fff; }
.footer-brand p { margin-top: 16px; line-height: 2; color: #8aa3cc; font-size: 13px; }
.footer-brand .footer-contact { margin-top: 16px; font-size: 13px; line-height: 2.1; color: #a9c1e8; }
.footer-brand .footer-contact b { color: #fff; font-weight: 600; }
.footer-col h4 { color: #fff; font-size: 15.5px; font-weight: 700; letter-spacing: 1px; margin-bottom: 20px; position: relative; padding-bottom: 12px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 34px; height: 2.5px; border-radius: 2px; background: var(--grad-main); }
.footer-col a { display: block; padding: 5px 0; color: #8aa3cc; transition: all .25s; }
.footer-col a:hover { color: var(--c-cyan); padding-left: 6px; }
.footer-col .f-tag { display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border: 1px solid rgba(255,255,255,.16); border-radius: 999px; font-size: 12px; color: #9db6de; margin: 0 8px 8px 0; transition: all .25s; }
.footer-col .f-tag:hover { border-color: var(--c-cyan); color: var(--c-cyan); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 22px 0; display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 12.5px; color: #6d89b8; }
.footer-bottom a:hover { color: var(--c-cyan); }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed; right: 26px; bottom: 30px; z-index: 900;
  width: 46px; height: 46px; border-radius: 12px;
  background: var(--grad-main); color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(22,119,255,.4);
  opacity: 0; visibility: hidden; transform: translateY(12px); transition: all .3s;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { transform: translateY(-3px); }

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal.d1 { transition-delay: .1s; } .reveal.d2 { transition-delay: .2s; }
.reveal.d3 { transition-delay: .3s; } .reveal.d4 { transition-delay: .4s; }

/* 量子节点装饰 */
.qnode { position: absolute; width: 8px; height: 8px; border-radius: 50%; background: var(--c-cyan); box-shadow: 0 0 14px var(--c-cyan); }

/* 引用块 */
.quote { position: relative; padding: 22px 26px 22px 56px; background: var(--c-primary-l); border-radius: var(--radius); font-size: 15px; color: var(--c-navy); line-height: 2; border-left: 4px solid var(--c-primary); }
.quote::before { content: "“"; position: absolute; left: 18px; top: 8px; font-size: 40px; color: var(--c-primary); font-family: Georgia, serif; }

/* 分页 */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.pagination a, .pagination span { min-width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; border-radius: 10px; border: 1px solid var(--c-line); background: #fff; font-size: 14px; color: var(--c-text); transition: all .25s; }
.pagination a:hover { border-color: var(--c-primary); color: var(--c-primary); }
.pagination .cur { background: var(--grad-main); color: #fff; border-color: transparent; }

/* 轮播（新闻） */
.carousel { position: relative; }
.carousel-track { display: flex; gap: 24px; overflow: hidden; scroll-behavior: smooth; }
.carousel-track > * { flex: 0 0 calc((100% - 48px) / 3); }
.car-nav { display: flex; justify-content: center; gap: 10px; margin-top: 26px; }
.car-dot { width: 10px; height: 10px; border-radius: 50%; background: #c9d9ef; transition: all .3s; }
.car-dot.active { width: 30px; border-radius: 999px; background: var(--grad-main); }

/* ---------- 动画 ---------- */
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1100px) {
  .main-nav { gap: 0; }
  .nav-link { padding: 10px 10px; font-size: 14px; }
  .header-inner { gap: 20px; }
}

@media (max-width: 992px) {
  .nav-toggle { display: flex; }
  .main-nav { display: none; }
  .header-inner { justify-content: space-between; }
  .section { padding: 64px 0; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .stat-grid, .price-grid, .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .path-grid { grid-template-columns: 1fr; gap: 24px; }
  .path-card::after { display: none; }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .hero-inner { grid-template-columns: 1fr; padding: 48px 0 42px; }
  .hero-visual { display: none; }
  .hero-title { font-size: 34px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
  .process { grid-template-columns: 1fr; }
  .carousel-track > * { flex: 0 0 calc((100% - 24px) / 2); }
  .timeline::before { left: 10px; }
  .tl-item, .tl-item:nth-child(odd), .tl-item:nth-child(even) { width: 100%; left: 0; text-align: left; padding: 0 0 40px 44px; }
  .tl-item:nth-child(odd) .tl-dot, .tl-item:nth-child(even) .tl-dot { left: 2px; right: auto; }
  .page-banner { height: 260px; }
  .banner-title { font-size: 30px; }
  .news-list-item { flex-direction: column; }
  .news-list-item .nli-img { width: 100%; }
}

@media (max-width: 640px) {
  .container { padding: 0 18px; }
  .grid-2, .grid-3, .grid-4, .stat-grid, .price-grid, .pricing-grid { grid-template-columns: 1fr; }
  .pt-price { font-size: 26px; }
  .pt-card { padding: 26px 20px; }
  .path-track { gap: 10px; }
  .path-track .pt-line { width: 24px; }
  .path-card { padding: 26px 20px; }
  .carousel-track > * { flex: 0 0 100%; }
  .footer-top { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .sec-title { font-size: 26px; }
  .hero-title { font-size: 27px; letter-spacing: 1px; }
  .hero-inner { padding: 40px 0 34px; }
  .hero-meta { grid-template-columns: 1fr 1fr; gap: 16px; }
  .hero-meta .hm-num { font-size: 24px; }
  .cta-band { padding: 36px 26px; }
  .logo-name { font-size: 20px; letter-spacing: 2px; }
  .logo-img { height: 40px; max-width: 200px; }
  .page-banner { height: 220px; }
  .banner-title { font-size: 24px; letter-spacing: 2px; }
  .topbar-right .tb-hide { display: none; }
  .topbar { font-size: 11.5px; }
  .form-card { padding: 26px 20px; }
  .quote { padding: 18px 18px 18px 44px; }
  .back-top { right: 16px; bottom: 18px; width: 40px; height: 40px; }
  .feature-card { padding: 26px 20px; }
  .feature-card .icon-wrap { flex-basis: 48px; width: 48px; height: 48px; border-radius: 12px; margin-right: 12px; }
  .feature-card h3 { font-size: 17px; }
  .feature-card p, .feature-card .fc-more, .feature-card .list-check { margin-left: 0; }
  .process { gap: 18px; }
  .process .ps-item { padding: 24px 20px; }
  .process .ps-ico { flex-basis: 46px; width: 46px; height: 46px; border-radius: 12px; margin-right: 12px; margin-bottom: 0; }
  .process h3 { font-size: 16.5px; }
  .process p { font-size: 13px; line-height: 1.8; }
  .process .ps-item::before { font-size: 34px; top: 14px; right: 18px; }
  .md-head { flex-direction: column; align-items: flex-start; gap: 20px; }
  .md-avatar { width: 110px; height: 110px; }
  .md-ach { grid-template-columns: 1fr; }
  .md-name { font-size: 25px; }
}