/* =========================================================
   创影鼠AI智拍 品牌官网 — 设计系统
   品牌色统一取自 Logo：#2E9BF0（Logo 蓝 · 主色） / #0A2440（深海军蓝） / #E8F3FE（浅蓝）
   ========================================================= */

/* 本地字体（阿里巴巴普惠体），缺失时回退系统字体 */
@font-face {
  font-family: "Alibaba PuHuiTi";
  src: url("/static/fonts/Alibaba-PuHuiTi-Regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}

:root {
  /* 品牌色（统一取 Logo 蓝） */
  --blue: #2E9BF0;
  --blue-600: #1E86E0;
  --blue-700: #1367B4;
  --blue-soft: #E8F3FE;
  --indigo: #2E9BF0;
  --coral: #2E9BF0;

  /* 中性（深色统一为深海军蓝，不再是黑） */
  --navy: #0A2440;
  --navy-2: #0E3358;
  --ink: #14243D;
  --muted: #5B6B85;
  --line: #E4EEF9;

  /* 背景 */
  --bg: #FFFFFF;
  --bg-soft: #F3F8FF;
  --bg-tint: #E9F3FE;

  /* 渐变（统一蓝） */
  --grad-brand: linear-gradient(135deg, #3AA6F5 0%, #1E86E0 100%);
  --grad-warm: linear-gradient(135deg, #3AA6F5 0%, #1E86E0 100%);

  /* 圆角 / 阴影 */
  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 24px;
  --r-pill: 999px;

  --shadow-sm: 0 4px 14px rgba(16, 32, 80, 0.06);
  --shadow-md: 0 14px 40px rgba(16, 32, 80, 0.10);
  --shadow-lg: 0 24px 60px rgba(16, 32, 80, 0.16);

  /* 字体 */
  --font-sans: "Alibaba PuHuiTi", "PingFang SC", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system,
    "Segoe UI", Roboto, sans-serif;

  --maxw: 1180px;
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; font-weight: 800; color: var(--navy); }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow { max-width: 820px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--r-pill);
  font-weight: 700;
  font-size: 15px;
  border: 1.5px solid transparent;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: 0 10px 24px rgba(46, 155, 240, 0.32);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(46, 155, 240, 0.42); }
.btn-ghost {
  background: #fff;
  color: var(--blue-700);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-light {
  background: #fff;
  color: var(--blue-700);
}
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-block { width: 100%; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.scrolled { border-color: var(--line); box-shadow: var(--shadow-sm); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { display: inline-flex; }
.brand-logo { height: 34px; width: auto; display: block; }
.footer-brand .brand-logo { height: 30px; }
.brand-text {
  font-weight: 800;
  font-size: 20px;
  color: var(--navy);
  letter-spacing: .5px;
}
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  position: relative;
  padding: 4px 0;
  transition: color .15s ease;
}
.nav-links a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--blue);
  transition: width .2s ease;
}
.nav-links a:not(.nav-cta):hover { color: var(--blue); }
.nav-links a:not(.nav-cta):hover::after { width: 100%; }
.nav-cta {
  background: var(--grad-brand);
  color: #fff !important;
  padding: 9px 20px !important;
  border-radius: var(--r-pill);
  box-shadow: 0 8px 18px rgba(56, 107, 243, 0.28);
}
.nav-cta:hover { transform: translateY(-1px); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px; height: 42px;
  background: transparent;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform .25s ease, opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 通用区块 ---------- */
.section { padding: 88px 0; }
.section-soft { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.section-head.light { color: #fff; }
.kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--blue);
  background: var(--bg-tint);
  padding: 6px 14px;
  border-radius: var(--r-pill);
  margin-bottom: 16px;
}
.kicker.light { color: #fff; background: rgba(255,255,255,.14); }
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); letter-spacing: -.5px; }
.section-head.light h2 { color: #fff; }
.section-lead { margin-top: 14px; color: var(--muted); font-size: 16px; }
.section-lead.light { color: rgba(255,255,255,.82); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 64px 0 56px;
  background:
    radial-gradient(1200px 480px at 85% -10%, rgba(46,155,240,.12), transparent 60%),
    radial-gradient(900px 420px at 0% 0%, rgba(46,155,240,.10), transparent 55%);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 48px;
  align-items: center;
  padding-bottom: 56px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--blue-700);
  background: var(--bg-tint);
  padding: 7px 14px;
  border-radius: var(--r-pill);
  margin-bottom: 20px;
}
.eyebrow .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 4px rgba(46,155,240,.18);
}
.hero h1 {
  font-size: clamp(34px, 5vw, 56px);
  letter-spacing: -1px;
  line-height: 1.12;
}
.grad-text {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  margin-top: 20px;
  font-size: 17px;
  color: var(--muted);
  max-width: 520px;
}
.hero-actions { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-trust {
  margin-top: 34px;
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
}
.hero-trust li { font-size: 14px; color: var(--muted); display: flex; flex-direction: column; }
.hero-trust strong { font-size: 24px; color: var(--navy); font-weight: 800; line-height: 1.1; }

/* 首屏背景轮播（热门模板封面，渐进增强：无图自动降级为原浅背景） */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: opacity .8s ease;
  background: var(--navy);
}
.hero--bg .hero-bg { opacity: 1; visibility: visible; }
.hero-bg .hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.4s ease;
  will-change: opacity;
}
.hero-bg .hero-slide.is-active { opacity: 1; }
.hero-mask {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(115deg,
      rgba(8,18,46,.94) 0%,
      rgba(8,18,46,.82) 34%,
      rgba(8,18,46,.46) 72%,
      rgba(8,18,46,.30) 100%);
}
.hero .container { position: relative; z-index: 2; }

/* 暗背景模式下，Hero 文案切换为浅色以保证可读性 */
.hero--bg .eyebrow { color: #CFE6FF; background: rgba(255,255,255,.10); }
.hero--bg .eyebrow .dot { background: var(--blue); }
.hero--bg h1 { color: #FFFFFF; }
.hero--bg .grad-text {
  background: linear-gradient(135deg, #BFE0FF 0%, #FFFFFF 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero--bg .hero-sub { color: rgba(255,255,255,.88); }
.hero--bg .hero-trust li { color: rgba(255,255,255,.72); }
.hero--bg .hero-trust strong { color: #FFFFFF; }
.hero--bg .stat-bar {
  background: rgba(8,18,46,.55);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.14);
}
.hero--bg .stat-bar b {
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero--bg .stat-bar span { color: rgba(255,255,255,.82); }

/* Hero 视觉：设备 + 浮卡 */
.hero-visual {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.device {
  position: relative;
  width: 210px;
  filter: drop-shadow(0 30px 50px rgba(16,32,80,.18));
}
.device-screen {
  position: relative;
  width: 210px; height: 320px;
  background: linear-gradient(160deg, #0B2340, #173F6E);
  border-radius: 22px;
  border: 6px solid #081D33;
  overflow: hidden;
  box-shadow: inset 0 0 0 2px rgba(255,255,255,.06);
}
.device-cam {
  position: absolute;
  top: 12px; left: 50%; transform: translateX(-50%);
  width: 10px; height: 10px; border-radius: 50%;
  background: #2A5C93;
  box-shadow: 0 0 0 3px #102C4A, inset 0 0 4px #4A9BE0;
}
.device-content { position: absolute; inset: 34px 16px 16px; }
.live-tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 700; color: #fff;
  background: rgba(46,155,240,.18);
  border: 1px solid rgba(46,155,240,.5);
  padding: 4px 10px; border-radius: 999px;
}
.live-tag i {
  width: 6px; height: 6px; border-radius: 50%; background: var(--blue);
  box-shadow: 0 0 8px rgba(46,155,240,.75);
  animation: blink 1.3s infinite;
}
@keyframes blink { 50% { opacity: .3; } }
.device-photo {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.device-photo .ph { height: 64px; border-radius: 10px; }
.device-photo .ph-1 { grid-column: 1 / -1; height: 90px; background: linear-gradient(135deg,#2E9BF0,#1367B4); }
.device-photo .ph-2 { background: linear-gradient(135deg,#5BC0F8,#2E9BF0); }
.device-photo .ph-3 { background: linear-gradient(135deg,#1367B4,#0B3E73); }
.device-base {
  width: 150px; height: 16px;
  margin: 0 auto;
  background: linear-gradient(#173F6E, #081D33);
  border-radius: 0 0 12px 12px;
}
.device-slot {
  width: 120px; height: 6px;
  margin: 6px auto 0;
  background: #081D33;
  border-radius: 6px;
  box-shadow: inset 0 2px 4px rgba(0,0,0,.6);
}
.float-card {
  position: absolute;
  display: flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px 14px;
  box-shadow: var(--shadow-md);
}
.float-card .fc-ico {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  background: var(--bg-tint);
  border-radius: 10px; font-size: 18px;
}
.float-card b { font-size: 14px; color: var(--navy); display: block; }
.float-card small { font-size: 11px; color: var(--muted); }
.fc-1 { top: 6%; left: -4%; animation: floaty 4s ease-in-out infinite; }
.fc-2 { bottom: 18%; right: -6%; animation: floaty 4.6s ease-in-out infinite; }
.fc-3 { bottom: 2%; left: 8%; animation: floaty 5.2s ease-in-out infinite; }
@keyframes floaty { 50% { transform: translateY(-10px); } }

/* 数据条 */
.stat-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 26px 20px;
  box-shadow: var(--shadow-md);
  margin-top: 8px;
}
.stat-bar li { text-align: center; }
.stat-bar b {
  display: block;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-bar span { font-size: 13px; color: var(--muted); }

/* ---------- 产品功能 ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.feature-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 26px 22px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #cdd9f7; }
.f-ico {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  font-size: 26px;
  background: var(--bg-tint);
  border-radius: 14px;
  margin-bottom: 16px;
}
.feature-card h3 { font-size: 18px; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--muted); line-height: 1.65; }

/* ---------- 应用场景 ---------- */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.scenario-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 24px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.scenario-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.s-ico { font-size: 30px; }
.scenario-card h3 { font-size: 17px; margin: 12px 0 6px; }
.scenario-card p { font-size: 14px; color: var(--muted); }

/* ---------- 核心优势 ---------- */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.adv-card {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px 24px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.adv-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); background: #fff; }
.adv-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  display: flex; align-items: center; gap: 10px;
}
.adv-card .num {
  font-size: 13px;
  font-weight: 800;
  color: var(--blue);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 2px 8px;
}
.adv-card p { font-size: 14px; color: var(--muted); }

/* ---------- 合作加盟（深色） ---------- */
.section-coop {
  background: radial-gradient(900px 500px at 80% 0%, rgba(46,155,240,.28), transparent 60%), var(--navy);
  color: #fff;
}
.coop-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.coop-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--r-lg);
  padding: 28px 24px;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.coop-card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,.28); }
.coop-feature {
  background: var(--grad-brand);
  border-color: transparent;
}
.coop-top { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.coop-ico {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  font-size: 24px;
  background: rgba(255,255,255,.14);
  border-radius: 12px;
}
.coop-card h3 { font-size: 19px; color: #fff; }
.coop-card p { font-size: 14px; color: rgba(255,255,255,.78); margin-bottom: 14px; }
.coop-list { display: flex; flex-direction: column; gap: 8px; }
.coop-list li {
  font-size: 13px; color: rgba(255,255,255,.9);
  padding-left: 22px; position: relative;
}
.coop-list li::before {
  content: "✓";
  position: absolute; left: 0; top: 0;
  color: #7CC6FF; font-weight: 800;
}

/* 合作流程 */
.coop-flow { margin-top: 56px; }
.flow-title { text-align: center; color: #fff; font-size: 22px; margin-bottom: 28px; }
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  counter-reset: step;
}
.flow-steps li {
  position: relative;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--r-md);
  padding: 22px 18px 18px;
  text-align: center;
}
.step-no {
  display: inline-grid; place-items: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--grad-brand);
  color: #fff; font-weight: 800; font-size: 16px;
  margin-bottom: 12px;
}
.flow-steps b { display: block; color: #fff; font-size: 16px; margin-bottom: 4px; }
.flow-steps small { color: rgba(255,255,255,.72); font-size: 13px; }

/* 分账说明 */
.coop-split {
  margin-top: 52px;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 36px;
  align-items: center;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--r-lg);
  padding: 36px;
}
.coop-split-text h3 { color: #fff; font-size: 22px; margin-bottom: 12px; }
.coop-split-text p { color: rgba(255,255,255,.8); font-size: 15px; margin-bottom: 22px; }
.coop-pills { display: flex; flex-wrap: wrap; gap: 10px; }
.coop-pills li {
  font-size: 13px; font-weight: 600;
  color: #fff;
  background: rgba(46,155,240,.28);
  border: 1px solid rgba(255,255,255,.18);
  padding: 8px 16px;
  border-radius: var(--r-pill);
}

/* 分账流向示意 */
.coop-route { margin-top: 52px; }
.route-title { text-align: center; color: #fff; font-size: 20px; margin-bottom: 24px; }
.route-flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.route-node {
  flex: 1 1 200px;
  min-width: 180px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--r-md);
  padding: 22px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.route-node b { color: #fff; font-size: 16px; }
.route-node small { color: rgba(255,255,255,.72); font-size: 12.5px; }
.route-ico {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--grad-brand);
  border-radius: 12px;
  margin-bottom: 4px;
}
.route-ico svg { width: 24px; height: 24px; color: #fff; }
.route-arrow {
  align-self: center;
  width: 26px; height: 26px;
  position: relative;
  flex: 0 0 auto;
}
.route-arrow::before {
  content: "";
  position: absolute;
  top: 50%; left: 4px; right: 4px;
  height: 2px; background: rgba(255,255,255,.45);
  transform: translateY(-50%);
}
.route-arrow::after {
  content: "";
  position: absolute;
  top: 50%; right: 2px;
  width: 8px; height: 8px;
  border-top: 2px solid rgba(255,255,255,.45);
  border-right: 2px solid rgba(255,255,255,.45);
  transform: translateY(-50%) rotate(45deg);
}
.route-node--multi { flex: 1 1 240px; }
.route-tags {
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
  margin: 2px 0 2px;
}
.route-tags li {
  font-size: 12px; font-weight: 600; color: #fff;
  background: rgba(46,155,240,.30);
  border: 1px solid rgba(255,255,255,.2);
  padding: 5px 12px; border-radius: var(--r-pill);
}

/* ---------- 模板风格注脚 ---------- */
.gallery-note { text-align: center; font-size: 12px; color: var(--muted); margin-top: 20px; }

/* ---------- 模板风格轮播 ---------- */
.gallery-rail {
  overflow: hidden;
  margin-top: 8px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
}
.gallery-rail[hidden] { display: none; }
.gallery-track {
  display: flex;
  width: max-content;
  animation: g-scroll 42s linear infinite;
}
.gallery-rail:hover .gallery-track,
.gallery-track:focus-within { animation-play-state: paused; }
.gallery-track .g-slide { flex: 0 0 auto; width: 220px; margin: 0 16px 0 0; }
.gallery-track .g-img {
  aspect-ratio: 3 / 4;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--blue-soft);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
}
.gallery-track .g-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gallery-track figcaption {
  margin-top: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
@keyframes g-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .gallery-track { animation: none; } }
@media (max-width: 560px) { .gallery-track .g-slide { width: 160px; } }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 4px 22px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.faq-item[open] { border-color: #cdd9f7; box-shadow: var(--shadow-sm); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 16px;
  color: var(--navy);
  padding: 16px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 22px; font-weight: 400;
  color: var(--blue);
  transition: transform .2s ease;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item p { color: var(--muted); font-size: 14px; padding: 0 0 18px; }

/* ---------- CTA / 联系 ---------- */
.cta {
  background: var(--grad-brand);
  color: #fff;
}
.cta-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
}
.cta-copy h2 { color: #fff; font-size: clamp(26px, 3.4vw, 36px); }
.cta-contact { margin-top: 22px; display: flex; flex-direction: column; gap: 12px; }
.cta-contact li { font-size: 15px; display: flex; align-items: center; gap: 10px; }
.cta-contact span { font-size: 18px; }

.cta-form {
  background: #fff;
  border-radius: var(--r-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field-full { grid-column: 1 / -1; }
.field label { font-size: 13px; font-weight: 700; color: var(--navy); }
.field input, .field select, .field textarea {
  font-family: inherit;
  font-size: 14px;
  color: var(--ink);
  padding: 11px 14px;
  border: 1.5px solid var(--line);
  border-radius: var(--r-sm);
  background: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(46,155,240,.15);
}
.field textarea { resize: vertical; }
.cta-form .btn-block { grid-column: 1 / -1; }
.form-tip { grid-column: 1 / -1; font-size: 13px; color: var(--blue-700); min-height: 18px; margin: 0; }
.form-tip.error { color: #d64545; }
.form-tip.success { color: #1a7f4b; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy); color: rgba(255,255,255,.78); padding: 56px 0 28px; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand .brand-text { color: #fff; }
.footer-desc { margin-top: 14px; font-size: 14px; max-width: 280px; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer-col a { display: block; font-size: 14px; padding: 5px 0; color: rgba(255,255,255,.72); transition: color .15s ease; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 22px;
  font-size: 13px;
  color: rgba(255,255,255,.55);
}
.footer-icp { font-size: 12px; }

/* ---------- 滚动出现动画（渐进增强） ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1 !important; transform: none !important; }
  .float-card, .live-tag i { animation: none !important; }
}

/* =========================================================
   内联 SVG 图标系统（线性风格 · 可 currentColor 染色）
   ========================================================= */
.svg-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.ico {
  width: 1.5em;
  height: 1.5em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  display: block;
}
.f-ico svg        { width: 28px; height: 28px; color: var(--blue); }
.fc-ico svg       { width: 20px; height: 20px; color: var(--blue); }
.s-ico            { display: inline-block; line-height: 0; }
.s-ico svg        { width: 32px; height: 32px; color: var(--blue); }
.coop-ico svg     { width: 24px; height: 24px; color: #fff; }
.cta-ico          { display: inline-flex; flex: none; }
.cta-ico svg      { width: 19px; height: 19px; color: #fff; }

/* =========================================================
   二级页面通用样式（关于 / 新闻 / 帮助）
   ========================================================= */
.page-hero {
  padding: 72px 0 48px;
  text-align: center;
  background: radial-gradient(900px 380px at 50% -10%, rgba(46,155,240,.10), transparent 60%);
}
.page-hero h1 { font-size: clamp(28px, 4.4vw, 44px); letter-spacing: -.5px; }
.page-hero-lead { margin: 18px auto 0; max-width: 620px; color: var(--muted); font-size: 17px; }

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 8px;
}
.about-stat {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 24px 18px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.about-stat b {
  display: block;
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 800;
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.about-stat span { font-size: 13px; color: var(--muted); }

.about-values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.cta-band { text-align: center; max-width: 720px; margin: 0 auto; }
.cta-band h2 { color: #fff; font-size: clamp(24px, 3.2vw, 34px); }
.cta-band .btn { margin-top: 22px; }

.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 24px 26px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.news-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.news-tag {
  font-size: 12px; font-weight: 700; color: var(--blue-700);
  background: var(--bg-tint); padding: 4px 12px; border-radius: var(--r-pill);
}
.news-meta time { font-size: 13px; color: var(--muted); }
.news-card h3 { font-size: 18px; margin-bottom: 8px; }
.news-card p { font-size: 14px; color: var(--muted); }
.news-more { display: inline-block; margin-top: 12px; color: var(--blue); font-weight: 700; font-size: 14px; }

.help-group { margin-bottom: 28px; }
.help-group-title {
  font-size: 16px; color: var(--blue-700); margin-bottom: 12px;
  padding-left: 12px; border-left: 3px solid var(--blue);
}

.nav-links a.active { color: var(--blue); }
.nav-links a.active::after { width: 100%; }

/* =========================================================
   标题字体（Mac 苹方 / Windows 魏碑）
   —— 全站以 Logo 蓝为主色，深色区用深海军蓝，不再混入金色。
   ========================================================= */
:root {
  --serif: "PingFang SC", "Weibei SC", "STXinwei", "FZWeiBei-S03S", "Microsoft YaHei", sans-serif;
}

/* 大标题衬线化：增强写真/婚纱的优雅气质 */
.hero h1,
.section-head h2,
.page-hero h1,
.flow-title,
.route-title,
.cta-copy h2,
.coop-split-text h3 {
  font-family: var(--serif);
  font-weight: 700;
}

/* kicker：品牌蓝 */
.kicker { color: var(--blue-700); background: var(--blue-soft); }
.kicker.light { color: #fff; background: rgba(46,155,240,.28); }

/* Hero 背景：纯蓝色光晕，统一主色 */
.hero {
  background:
    radial-gradient(820px 380px at 90% -8%, rgba(46,155,240,.12), transparent 55%),
    radial-gradient(1200px 480px at 85% -10%, rgba(46,155,240,.10), transparent 60%);
}

/* 合作高亮卡片：品牌蓝描边，强化「主推」感 */
.coop-feature {
  box-shadow: 0 0 0 1px rgba(46,155,240,.55), var(--shadow-md);
}

/* 步骤序号外圈点蓝色微光 */
.step-no { box-shadow: 0 0 0 4px rgba(46,155,240,.18); }

/* 数据条 / 关于统计数字统一使用品牌蓝渐变 */

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-visual { min-height: 360px; order: -1; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .coop-grid { grid-template-columns: 1fr; }

  .flow-steps { grid-template-columns: repeat(2, 1fr); }
  .coop-split { grid-template-columns: 1fr; gap: 24px; }
  .cta-inner { grid-template-columns: 1fr; gap: 30px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .about-values { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .section { padding: 64px 0; }
  .nav-links {
    position: fixed;
    inset: 68px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    padding: 8px 24px 20px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform .25s ease, opacity .25s ease;
  }
  .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { padding: 14px 4px; border-bottom: 1px solid var(--line); font-size: 16px; }
  .nav-links a:not(.nav-cta)::after { display: none; }
  .nav-links .nav-cta { margin-top: 14px; text-align: center; }
  .nav-toggle { display: flex; }

  .stat-bar { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .feature-grid { grid-template-columns: 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: 1fr; }

  .flow-steps { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .route-arrow { display: none; }
  .route-node { flex-basis: 100%; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .about-values { grid-template-columns: 1fr; }
  .page-hero { padding: 52px 0 36px; }
  .footer-bottom { flex-direction: column; }
  .cta-form { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1; }
}

@media (max-width: 420px) {
  .container { padding: 0 18px; }
  .stat-bar { grid-template-columns: repeat(2, 1fr); }

  .float-card { transform: scale(.9); }
  .fc-1 { left: -2%; }
  .fc-2 { right: -2%; }
}

/* =========================================================
   高端升级 · 品牌蓝统一（系统能力 / 合作收益 / 细节深化）
   目的：全站以 Logo 蓝为主色，深色区用深海军蓝，去黑去金、统一风格
   ========================================================= */

/* 首屏：更克制的蓝色光晕 */
.hero {
  background:
    radial-gradient(900px 420px at 88% -12%, rgba(46,155,240,.14), transparent 55%),
    radial-gradient(1000px 460px at 0% 0%, rgba(46,155,240,.08), transparent 55%);
}

/* 实时出片标签 */
.live-tag {
  background: rgba(46,155,240,.16);
  border-color: rgba(46,155,240,.5);
}
.live-tag i {
  background: var(--blue);
  box-shadow: 0 0 8px rgba(46,155,240,.7);
  animation: blink 1.6s infinite;
}

/* Hero 样机配色：统一为品牌蓝层次 */
.device-photo .ph-1 { background: linear-gradient(135deg,#2E9BF0,#1367B4); }
.device-photo .ph-2 { background: linear-gradient(135deg,#5BC0F8,#2E9BF0); }
.device-photo .ph-3 { background: linear-gradient(135deg,#1367B4,#0B3E73); }

/* kicker 字距收紧一点更精致 */
.kicker { letter-spacing: 3px; }

/* ---- 系统能力：技术底座三卡 ---- */
.cap-base-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 44px;
}
.cap-base {
  position: relative;
  background: linear-gradient(180deg, #ffffff, #FBFDFF);
  border: 1px solid var(--line);
  border-top: 3px solid var(--blue);
  border-radius: var(--r-lg);
  padding: 30px 26px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}
.cap-base:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.cap-base .cb-index {
  display: block;
  font-family: var(--serif);
  font-size: 34px;
  font-weight: 700;
  color: var(--blue);
  line-height: 1;
  opacity: .9;
}
.cap-base h3 { font-size: 19px; margin: 14px 0 10px; color: var(--navy); }
.cap-base p { font-size: 14.5px; color: var(--muted); line-height: 1.7; }

/* 能力网格 */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.cap-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 26px 22px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.cap-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #bcdcfa; }
.cap-card .f-ico { background: var(--blue-soft); }
.cap-card .f-ico svg { color: var(--blue); }
.cap-card h3 { font-size: 17px; margin: 14px 0 8px; color: var(--navy); }
.cap-card p { font-size: 14px; color: var(--muted); line-height: 1.65; }

/* ---- 合作收益（深蓝区 · B端核心）---- */
.section-benefit {
  position: relative;
  background:
    radial-gradient(900px 480px at 85% -10%, rgba(46,155,240,.34), transparent 55%),
    linear-gradient(180deg, #1C72CC 0%, #134E90 100%);
  color: #fff;
  overflow: hidden;
}
.section-benefit::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue) 50%, transparent);
  opacity: .85;
}
.section-benefit .section-head.light h2 { color: #fff; }
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.benefit-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(46,155,240,.28);
  border-radius: var(--r-lg);
  padding: 30px 26px;
  transition: transform .25s ease, background .25s ease, border-color .25s ease;
}
.benefit-card:hover { transform: translateY(-5px); background: rgba(255,255,255,.08); border-color: rgba(46,155,240,.6); }
.b-ico {
  width: 50px; height: 50px;
  display: grid; place-items: center;
  border-radius: 13px;
  background: rgba(46,155,240,.16);
  border: 1px solid rgba(46,155,240,.4);
  margin-bottom: 16px;
}
.b-ico svg { width: 26px; height: 26px; color: #7CC6FF; }
.benefit-card h3 {
  font-size: 18px; color: #fff; margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(46,155,240,.22);
  font-family: var(--serif); font-weight: 700;
}
.benefit-card p { font-size: 14px; color: rgba(255,255,255,.8); line-height: 1.7; }

/* 收益金句条 */
.benefit-band {
  margin-top: 48px;
  text-align: center;
  border: 1px solid rgba(46,155,240,.3);
  border-radius: var(--r-lg);
  background: rgba(46,155,240,.08);
  padding: 28px 24px;
}
.benefit-band .bb-label {
  font-family: var(--serif);
  font-size: 20px; color: #fff; margin-bottom: 16px;
}
.benefit-band .bb-pills { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.benefit-band .bb-pills li {
  font-size: 14px; font-weight: 600; color: #D6ECFF;
  background: rgba(46,155,240,.16);
  border: 1px solid rgba(46,155,240,.4);
  padding: 9px 18px; border-radius: var(--r-pill);
}

/* ---- 合作方式蓝色高亮 ---- */
.coop-card .coop-ico { background: rgba(46,155,240,.16); border: 1px solid rgba(46,155,240,.4); }
.coop-card .coop-ico svg { color: #7CC6FF; }
.coop-feature {
  background: linear-gradient(135deg, #2E9BF0 0%, #1E86E0 100%);
  border-color: transparent;
}
.coop-feature h3, .coop-feature p { color: #fff; }
.coop-feature .coop-ico { background: rgba(255,255,255,.22); border-color: rgba(255,255,255,.4); }
.coop-feature .coop-ico svg { color: #fff; }
.coop-feature .coop-list li { color: rgba(255,255,255,.94); }
.coop-feature .coop-list li::before { color: #fff; }

/* 分账节点蓝色微调 */
.route-ico { background: linear-gradient(135deg,#2E9BF0,#1E86E0); }
.route-tags li { background: rgba(46,155,240,.22); border-color: rgba(46,155,240,.4); }



/* ---- 响应式：新增模块 ---- */
@media (max-width: 980px) {
  .cap-base-row { grid-template-columns: 1fr; }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .cap-grid { grid-template-columns: 1fr; }
  .benefit-grid { grid-template-columns: 1fr; }
}
@media (max-width: 420px) {
  .benefit-band .bb-pills li { font-size: 13px; }
}

/* =========================================================
   产品中心页
   ========================================================= */
/* 型号总览卡片 */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.product-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #cdd9f7; }
.product-figure { position: relative; aspect-ratio: 4 / 3; background: var(--bg-soft); overflow: hidden; }
.product-figure img { width: 100%; height: 100%; object-fit: cover; display: block; }
.product-tag {
  position: absolute; top: 14px; left: 14px;
  font-size: 12px; font-weight: 700; color: #fff;
  background: var(--grad-brand);
  padding: 5px 13px; border-radius: var(--r-pill);
  box-shadow: var(--shadow-sm);
}
.product-body { padding: 22px 24px 26px; }
.product-body h3 { font-size: 20px; margin-bottom: 6px; }
.product-body .sub { color: var(--blue-700); font-size: 14px; font-weight: 600; margin-bottom: 12px; }
.product-body p { color: var(--muted); font-size: 14px; line-height: 1.7; }
.product-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.product-meta span {
  font-size: 12px; color: var(--blue-700);
  background: var(--blue-soft);
  padding: 4px 11px; border-radius: var(--r-pill);
}

/* 机型详情（图文交替） */
.model-list { display: flex; flex-direction: column; gap: 26px; }
.model-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}
.model-row.reverse .model-media { order: 2; }
.model-media {
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--bg-soft);
}
.model-media img { width: 100%; height: 100%; object-fit: cover; display: block; aspect-ratio: 4 / 3; }
.model-info .kicker { margin-bottom: 12px; }
.model-info h3 { font-size: 24px; margin-bottom: 4px; letter-spacing: -.3px; }
.model-info .model-sub { color: var(--blue-700); font-weight: 600; font-size: 15px; margin-bottom: 14px; }
.model-info p { color: var(--muted); line-height: 1.75; margin-bottom: 16px; }
.spec-list {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px;
}
.spec-list li { display: flex; gap: 9px; font-size: 14px; color: var(--ink); line-height: 1.5; }
.spec-list li::before {
  content: ""; flex: 0 0 6px; height: 6px; margin-top: 7px;
  border-radius: 50%; background: var(--blue);
}

/* 产品页响应式 */
@media (max-width: 900px) {
  .product-grid { grid-template-columns: 1fr; }
  .model-row { grid-template-columns: 1fr; gap: 18px; padding: 20px; }
  .model-row.reverse .model-media { order: 0; }
}
@media (max-width: 560px) {
  .spec-list { grid-template-columns: 1fr; }
}

/* 场景图文配图（渐变占位 + 标签） */
.scene-media { display: grid; place-items: center; }
.scene-media .scene-label {
  color: #fff;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  letter-spacing: 1px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, .25);
  padding: 0 16px;
  text-align: center;
}

/* FAQ 分组 */
.faq-group { margin-top: 44px; }
.faq-group:first-of-type { margin-top: 0; }
.faq-group h2 {
  font-size: clamp(20px, 2.6vw, 24px);
  letter-spacing: -.3px;
  margin-bottom: 18px;
}