/* ============================================================
   智合聚通 · 来电号码认证官网 — 全站样式
   design.md v1.0 对应实现
   ============================================================ */

:root {
  /* 主色 */
  --color-primary: #3470FF;
  --color-primary-dark: #2B5CE0;
  --color-primary-soft: #EAF0FF;
  --color-accent: #3BA886;
  /* 中性色阶 */
  --neutral-50: #F7F9FC;
  --neutral-100: #EEF1F6;
  --neutral-200: #E2E7EF;
  --neutral-300: #D3DAE4;
  --neutral-400: #B6BFCC;
  --neutral-500: #94A0B1;
  --neutral-600: #6F7B8C;
  --neutral-700: #4E5A6B;
  --neutral-800: #333F4F;
  --neutral-900: #1E2836;
  /* 语义色 */
  --success: #3BA886;
  --warning: #D9A03C;
  --danger: #D9534F;
  /* 字体与排版 */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
  /* 形状 */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-card: 0 2px 12px rgba(30, 40, 54, 0.06);
  --shadow-card-hover: 0 12px 28px rgba(30, 40, 54, 0.12);
  --shadow-nav: 0 4px 20px rgba(30, 40, 54, 0.08);
  /* 布局 */
  --container: 1200px;
  --header-h: 64px;
}

/* ---------- 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-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--neutral-700);
  background: #fff;
  min-width: 320px;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color .3s ease; }
a:hover { color: var(--color-primary-dark); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }

h1, h2, h3, h4, h5, h6 { color: var(--neutral-800); line-height: 1.3; font-weight: 700; }
h1 { font-size: 40px; line-height: 1.25; }
h2 { font-size: 32px; }
h3 { font-size: 24px; font-weight: 600; }
h4 { font-size: 20px; font-weight: 600; }
h5 { font-size: 18px; font-weight: 600; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section--gray { background: var(--neutral-50); }
.section--dark { background: var(--neutral-900); color: #d7dce5; }
.section--blue { background: linear-gradient(135deg, #EAF0FF 0%, #F7F9FC 55%, #fff 100%); }

/* ---------- 标题区块 ---------- */
.section-head { text-align: center; max-width: 760px; margin: 0 auto 52px; }
.section-head .sec-tag {
  display: inline-block; font-size: 13px; font-weight: 500; letter-spacing: .04em;
  color: var(--color-primary); background: var(--color-primary-soft);
  padding: 4px 14px; border-radius: 999px; margin-bottom: 16px;
}
.section-head h2 { margin-bottom: 14px; }
.section-head .sec-sub { font-size: 15px; color: var(--neutral-600); }
.section-head--left { text-align: left; margin-left: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 15px; font-weight: 500; border-radius: var(--radius-md);
  padding: 12px 28px; transition: all .3s ease; white-space: nowrap;
}
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(52, 112, 255, 0.25); }
.btn--outline { border: 1px solid var(--color-primary); color: var(--color-primary); background: transparent; }
.btn--outline:hover { background: var(--color-primary-soft); color: var(--color-primary-dark); }
.btn--white { background: #fff; color: var(--color-primary); }
.btn--white:hover { background: var(--color-primary-soft); transform: translateY(-2px); }
.btn--sm { padding: 8px 18px; font-size: 14px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: relative; z-index: 100; height: var(--header-h);
  background: rgba(255, 255, 255, 0.92); border-bottom: 1px solid var(--neutral-200);
}
.site-header.is-scrolled {
  position: fixed; top: 0; left: 0; right: 0;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-nav);
}
.header-inner { display: flex; align-items: center; height: var(--header-h); gap: 24px; }
.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand img { height: 30px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.site-nav .nav-link {
  font-size: 15px; color: var(--neutral-700); padding: 8px 14px; border-radius: var(--radius-md);
  position: relative;
}
.site-nav .nav-link:hover { color: var(--color-primary); background: var(--neutral-50); }
.site-nav .nav-link.active { color: var(--color-primary); font-weight: 600; }
.site-nav .nav-link.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px;
  background: var(--color-primary); border-radius: 2px;
}
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-tel { font-size: 15px; font-weight: 600; color: var(--neutral-800); }
.header-tel:hover { color: var(--color-primary); }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: var(--radius-md); flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--neutral-800); border-radius: 2px; transition: all .3s ease; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端下拉导航 */
.mobile-nav {
  display: none; position: fixed; top: var(--header-h); left: 0; right: 0; z-index: 99;
  background: #fff; border-bottom: 1px solid var(--neutral-200); box-shadow: var(--shadow-nav);
  padding: 12px 24px 20px;
}
.mobile-nav.is-open { display: block; }
.mobile-nav a { display: block; padding: 13px 8px; font-size: 16px; color: var(--neutral-800); border-bottom: 1px solid var(--neutral-100); }
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a.active { color: var(--color-primary); font-weight: 600; }
.mobile-nav .mn-cta { margin-top: 12px; }
.mobile-nav .mn-tel { text-align: center; font-weight: 600; color: var(--neutral-800); padding: 6px 0; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--neutral-900); color: #aab3c1; }
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1.4fr; gap: 36px;
  padding: 64px 0 48px;
}
.footer-brand .f-logo { height: 32px; width: auto; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: #aab3c1; max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 11px; }
.footer-col ul a { color: #aab3c1; font-size: 14px; }
.footer-col ul a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 8px; font-size: 14px; margin-bottom: 11px; color: #aab3c1; }
.footer-contact svg { flex-shrink: 0; margin-top: 3px; color: var(--color-primary); }
.footer-contact a { color: #cfd6e0; }
.footer-qr { width: 110px; height: 110px; background: #fff; border-radius: var(--radius-md); padding: 6px; margin-top: 6px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 18px 0;
  font-size: 13px; color: #8a93a3; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}
/* 首页页脚：友情链接横向行置于版权上方 */
.footer-bottom--stack { flex-direction: column; align-items: center; gap: 10px; }
.footer-fl { display: flex; align-items: center; gap: 8px; font-size: 13px; color: #8a93a3; }
.footer-fl a { color: #cfd6e0; }
.footer-fl a:hover { color: #fff; }
.fb-line { display: flex; gap: 14px; }

/* ---------- 右侧浮动咨询 ---------- */
.float-bar {
  position: fixed; right: 18px; top: 50%; transform: translateY(-50%); z-index: 200;
  display: flex; flex-direction: column; gap: 12px;
}
.float-item {
  position: relative; width: 58px; height: 58px; border-radius: 50%;
  background: #fff; border: 1px solid var(--neutral-200); box-shadow: var(--shadow-card);
  display: flex; align-items: center; justify-content: center; color: var(--color-primary);
  transition: all .3s ease;
}
.float-item:hover { background: var(--color-primary); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(52, 112, 255, 0.3); }
.float-item svg { width: 26px; height: 26px; }
.float-item img { width: 30px; height: 30px; object-fit: contain; }
.float-item .float-label {
  position: absolute; right: 56px; top: 50%; transform: translateY(-50%);
  background: var(--neutral-900); color: #fff; font-size: 12px; padding: 5px 10px; border-radius: var(--radius-sm);
  white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity .3s ease;
}
.float-item:hover .float-label { opacity: 1; }
.float-item.consult { background: var(--color-primary); color: #fff; }
.float-item.consult:hover { background: var(--color-primary-dark); }
.float-item[data-qr-toggle] { color: #07C160; }
.float-item[data-qr-toggle]:hover { background: #07C160; color: #fff; box-shadow: 0 8px 20px rgba(7, 193, 96, 0.32); }
.float-qr-pop {
  position: fixed; right: 82px; top: 50%; transform: translateY(-50%) translateX(8px); z-index: 210;
  background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-card-hover);
  border: 1px solid var(--neutral-200); padding: 18px; width: 200px; text-align: center;
  opacity: 0; pointer-events: none; transition: all .3s ease;
}
.float-qr-pop.is-open { opacity: 1; pointer-events: auto; transform: translateY(-50%) translateX(0); }
.float-qr-pop img { width: 150px; height: 150px; margin: 0 auto 10px; }
.float-qr-pop p { font-size: 13px; color: var(--neutral-600); }
.float-qr-close { position: absolute; top: 8px; right: 10px; color: var(--neutral-400); font-size: 16px; line-height: 1; }
.float-tel-pop {
  position: fixed; right: 82px; top: calc(50% + 70px); transform: translateY(-50%) translateX(8px); z-index: 210;
  background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-card-hover);
  border: 1px solid var(--neutral-200); padding: 12px 18px; white-space: nowrap;
  opacity: 0; pointer-events: none; transition: all .3s ease;
}
.float-tel-pop.is-open { opacity: 1; pointer-events: auto; transform: translateY(-50%) translateX(0); }
.float-tel-pop a { display: flex; align-items: center; gap: 8px; color: var(--neutral-800); font-size: 15px; font-weight: 600; text-decoration: none; }
.float-tel-pop a svg { width: 16px; height: 16px; color: var(--color-primary); }
@media (max-width: 768px) {
  .float-bar { top: auto; bottom: 14px; right: 14px; transform: none; flex-direction: row; }
  .float-item { width: 50px; height: 50px; }
  .float-item .float-label { display: none; }
  .float-qr-pop { right: 14px; top: auto; bottom: 70px; transform: translateY(8px); }
  .float-qr-pop.is-open { transform: translateY(0); }
  .float-tel-pop { right: 14px; top: auto; bottom: 70px; transform: translateY(8px); }
  .float-tel-pop.is-open { transform: translateY(0); }
}

/* ---------- 卡片 ---------- */
.card {
  background: #fff; border: 1px solid var(--neutral-200); border-radius: var(--radius-lg);
  padding: 24px; box-shadow: var(--shadow-card); transition: all .3s ease;
}
.card--hover:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); border-color: var(--color-primary); }

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

/* 图标卡片 */
.icon-box {
  width: 52px; height: 52px; border-radius: var(--radius-md); background: var(--color-primary-soft);
  color: var(--color-primary); display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.icon-box svg { width: 26px; height: 26px; }
/* 办理材料卡图标（圆形浅绿系，区别于服务优势的方形蓝图标） */
.mat-card { text-align: center; }
.mat-card .mat-icon { width: 56px; height: 56px; border-radius: 50%; background: linear-gradient(135deg, #E8F7F1 0%, #F2FBF7 100%); color: var(--color-accent); border: 1px solid #CDEBDE; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.mat-card .mat-icon svg { width: 26px; height: 26px; }
.card h3 { margin-bottom: 10px; }
.card p { font-size: 14px; color: var(--neutral-600); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden; padding: 96px 0 88px;
  background: linear-gradient(135deg, #EAF0FF 0%, #F3F7FF 45%, #fff 100%);
}
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(60px); opacity: .5; z-index: 0;
}
.hero::before { width: 560px; height: 560px; background: radial-gradient(circle, rgba(52, 112, 255, 0.44) 0%, rgba(52, 112, 255, 0.18) 50%, transparent 72%); top: -160px; right: -60px; animation: floatA 6s ease-in-out infinite; }
.hero::after { width: 500px; height: 500px; background: radial-gradient(circle, rgba(59, 168, 134, 0.30) 0%, rgba(59, 168, 134, 0.12) 50%, transparent 72%); bottom: -140px; left: -80px; animation: floatB 8s ease-in-out infinite; }
@keyframes floatA {
  0%, 100% { transform: translateY(0) scale(1); opacity: .7; }
  20% { transform: translateY(18px) scale(1.05); opacity: .6; }
  40% { transform: translateY(36px) scale(1.16); opacity: .45; }
  60% { transform: translateY(20px) scale(1.1); opacity: .6; }
  80% { transform: translateY(6px) scale(1.04); opacity: .68; }
}
@keyframes floatB {
  0%, 100% { transform: translateY(0) scale(1); opacity: .6; }
  20% { transform: translateY(-14px) scale(1.08); opacity: .5; }
  40% { transform: translateY(-30px) scale(1.18); opacity: .38; }
  60% { transform: translateY(-16px) scale(1.12); opacity: .52; }
  80% { transform: translateY(-4px) scale(1.05); opacity: .58; }
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero h1 { font-size: 46px; margin-bottom: 18px; }
.hero h1 .hl { color: var(--color-primary); }
.hero .hero-sub { font-size: 17px; color: var(--neutral-600); margin-bottom: 30px; max-width: 560px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
.hero-pains { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-pains .pain {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; color: var(--neutral-600); background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--neutral-200); padding: 6px 14px; border-radius: 999px;
}
.hero-pains .pain::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-primary); flex-shrink: 0;
}
.hero-visual { position: relative; }
/* 手机效果展示（复刻参考站：认证后企业来电 vs 认证前未知来电） */
.hv-phones { display: flex; align-items: center; justify-content: center; gap: 18px; }
.hv-phone {
  width: 208px; background: #0f1b2d; border-radius: 30px; padding: 9px 9px 6px;
  box-shadow: var(--shadow-card-hover); position: relative; flex-shrink: 0;
}
.hv-phone .hp-notch {
  position: absolute; top: 17px; left: 50%; transform: translateX(-50%);
  width: 72px; height: 6px; background: #27364d; border-radius: 999px; z-index: 2;
}
.hv-phone .hp-screen {
  background: linear-gradient(180deg, #132240 0%, #0f1b2d 100%);
  border-radius: 22px; overflow: hidden; min-height: 372px; color: #fff; position: relative; padding-top: 26px;
}
.hp-status { display: flex; justify-content: space-between; padding: 6px 16px 0; font-size: 11px; color: #cfd6e0; }
.hp-call { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 46px 16px 84px; }
.hp-logo {
  width: 64px; height: 64px; border-radius: 50%; background: #fff; overflow: hidden;
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .35);
}
.hp-logo img { width: 100%; height: 100%; object-fit: cover; }
.hp-name { font-size: 21px; font-weight: 700; margin-bottom: 5px; }
.hp-num { font-size: 13px; color: #aab3c1; margin-bottom: 12px; }
.hp-badge {
  display: inline-flex; align-items: center; gap: 5px; font-size: 10px;
  background: rgba(47, 191, 113, .16); color: #5fe0a0;
  border: 1px solid rgba(47, 191, 113, .45); padding: 4px 10px; border-radius: 999px;
}
.hp-badge--warn { background: rgba(217, 83, 79, .16); color: #ff9a94; border-color: rgba(217, 83, 79, .5); }
.hp-actions { position: absolute; bottom: 22px; left: 0; right: 0; display: flex; justify-content: center; gap: 34px; }
.hp-act { width: 46px; height: 46px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; }
.hp-act svg { width: 20px; height: 20px; }
.hp-act--decline { background: #d9534f; }
.hp-act--accept { background: #2fbf71; }
.hv-phone .hp-label { text-align: center; font-size: 12px; color: var(--neutral-500); margin-top: 8px; }
.hv-phone--small { width: 164px; }
.hv-phone--small .hp-screen { min-height: 294px; padding-top: 22px; }
.hv-phone--small .hp-call { padding: 34px 12px 70px; }
.hv-phone--small .hp-logo { width: 50px; height: 50px; margin-bottom: 11px; }
.hv-phone--small .hp-name { font-size: 17px; }
.hv-phone--small .hp-num { font-size: 12px; }
.hv-phone--small .hp-badge { font-size: 9px; padding: 3px 8px; }
.hv-phone--small .hp-actions { bottom: 18px; gap: 26px; }
.hv-phone--small .hp-act { width: 38px; height: 38px; }
.hv-phone--small .hp-act svg { width: 16px; height: 16px; }
.hero-visual .hv-chip {
  position: absolute; background: #fff; border: 1px solid rgba(52, 112, 255, 0.35); border-radius: 12px;
  box-shadow: 0 8px 20px rgba(52, 112, 255, 0.16); padding: 10px 16px; font-size: 13px; color: var(--color-primary);
  display: flex; align-items: center; gap: 8px; animation: chipFloat 5s ease-in-out infinite; z-index: 3;
}
/* 认证卡片悬浮动画：仅做位移，保持完全不透明 */
@keyframes chipFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.hero-visual .hv-chip svg { width: 18px; height: 18px; color: var(--color-primary); }
.hero-visual .hv-chip.c1 { top: -18px; left: -20px; }
.hero-visual .hv-chip.c2 { bottom: 30px; right: -26px; animation-delay: 1.2s; }
.hero-visual .hv-chip.c3 { bottom: -16px; left: 40px; animation-delay: .6s; }

/* ---------- 内容页 Hero（矢量风格） ---------- */
.page-hero {
  background: linear-gradient(135deg, #EAF0FF 0%, #F3F7FF 55%, #fff 100%);
  position: relative; overflow: hidden; padding: 60px 0 48px; text-align: center;
}
.page-hero::after {
  content: ""; position: absolute; width: 520px; height: 520px; right: -160px; top: -200px;
  border-radius: 50%; border: 2px solid rgba(52, 112, 255, 0.18); z-index: 0;
}
.page-hero::before {
  content: ""; position: absolute; width: 260px; height: 260px; left: -80px; bottom: -120px;
  border-radius: 50%; border: 2px dashed rgba(52, 112, 255, 0.22); z-index: 0;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { margin-bottom: 14px; }
.page-hero .ph-sub { font-size: 15px; color: var(--neutral-600); max-width: 640px; margin: 0 auto; }
.breadcrumb { font-size: 13px; color: var(--neutral-500); margin-bottom: 18px; display: flex; justify-content: center; gap: 6px; flex-wrap: wrap; }
.breadcrumb a { color: var(--neutral-500); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: var(--neutral-400); }

/* ---------- 步骤条 / 流程图 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; position: relative; }
.step { position: relative; text-align: center; padding-top: 10px; }
.step::before {
  content: ""; position: absolute; top: 34px; left: calc(50% + 40px); width: calc(100% - 80px);
  height: 2px; background: linear-gradient(90deg, var(--color-primary) 0%, var(--neutral-300) 100%);
}
.step:last-child::before { display: none; }
.step .step-num {
  width: 68px; height: 68px; margin: 0 auto 16px; border-radius: 50%;
  background: var(--color-primary-soft); color: var(--color-primary); border: 2px solid var(--color-primary);
  display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 700;
  position: relative; z-index: 1; background: #fff;
}
.step h4 { margin-bottom: 8px; }
.step p { font-size: 13px; color: var(--neutral-600); }
.steps--4 { grid-template-columns: repeat(4, 1fr); }

/* 纵向时间轴（办理流程页） */
.timeline { position: relative; max-width: 860px; margin: 0 auto; }
.timeline::before { content: ""; position: absolute; left: 27px; top: 8px; bottom: 8px; width: 2px; background: var(--neutral-200); }
.tl-item { position: relative; padding: 0 0 44px 76px; }
.tl-item:last-child { padding-bottom: 8px; }
.tl-dot {
  position: absolute; left: 27px; top: 2px; transform: translateX(-50%);
  width: 56px; height: 56px; border-radius: 50%; background: #fff;
  border: 2px solid var(--color-primary); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 700;
  box-shadow: var(--shadow-card);
}
.tl-item.is-current .tl-dot { background: var(--color-primary); color: #fff; }
.tl-body { background: #fff; border: 1px solid var(--neutral-200); border-radius: var(--radius-lg); padding: 22px 26px; box-shadow: var(--shadow-card); }
.tl-body h3 { margin-bottom: 8px; }
.tl-body .tl-desc { font-size: 14px; color: var(--neutral-600); margin-bottom: 10px; }
.tl-note { font-size: 13px; color: var(--neutral-600); background: var(--neutral-50); border-left: 3px solid var(--color-primary); padding: 10px 14px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

/* ---------- 手风琴 ---------- */
.accordion { max-width: 860px; margin: 0 auto; }
.acc-item { background: #fff; border: 1px solid var(--neutral-200); border-radius: var(--radius-md); margin-bottom: 12px; overflow: hidden; transition: border-color .3s ease; }
.acc-item.is-open { border-color: var(--color-primary); }
.acc-head {
  width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 18px 22px; text-align: left; font-size: 16px; font-weight: 600; color: var(--neutral-800);
}
.acc-head .acc-arrow { flex-shrink: 0; width: 20px; height: 20px; transition: transform .3s ease; color: var(--neutral-400); }
.acc-item.is-open .acc-arrow { transform: rotate(180deg); color: var(--color-primary); }
.acc-panel { display: none; }
.acc-item.is-open .acc-panel { display: block; animation: accIn .3s ease; }
@keyframes accIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
.acc-panel-inner { padding: 0 22px 18px; font-size: 14px; color: var(--neutral-600); }

/* ---------- 标签 / 面包屑 / 分页 ---------- */
.tag { display: inline-block; font-size: 13px; color: var(--color-primary); background: var(--color-primary-soft); padding: 4px 12px; border-radius: var(--radius-sm); margin-right: 8px; margin-bottom: 8px; }
.tag:hover { background: var(--color-primary); color: #fff; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 44px; }
.pagination a, .pagination span {
  min-width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--neutral-200); border-radius: var(--radius-md); font-size: 14px; color: var(--neutral-700); background: #fff;
}
.pagination a:hover { border-color: var(--color-primary); color: var(--color-primary); }
.pagination .cur { background: var(--color-primary); border-color: var(--color-primary); color: #fff; font-weight: 600; }
.pagination .disabled { color: var(--neutral-400); background: var(--neutral-50); pointer-events: none; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
table.compare { width: 100%; table-layout: fixed; border-collapse: collapse; background: #fff; border: 1px solid var(--neutral-200); border-radius: var(--radius-lg); overflow: hidden; }
table.compare th, table.compare td { padding: 16px 18px; text-align: center; font-size: 14px; border-bottom: 1px solid var(--neutral-100); }
table.compare th { background: var(--color-primary-soft); color: var(--color-primary); font-weight: 600; }
table.compare td:first-child, table.compare th:first-child { text-align: left; color: var(--neutral-700); }
table.compare tr:last-child td { border-bottom: none; }
.tick { color: var(--color-primary); font-weight: 700; }
.tick--accent { color: var(--accent, var(--success)); }
.minus { color: var(--neutral-400); }

/* ---------- 资讯/问答列表卡片 ---------- */
.list-card {
  display: block; background: #fff; border: 1px solid var(--neutral-200); border-radius: var(--radius-lg);
  padding: 24px 26px; margin-bottom: 18px; box-shadow: var(--shadow-card); transition: all .3s ease;
}
.list-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); border-color: var(--color-primary); }
.list-card .lc-date { font-size: 13px; color: var(--neutral-500); margin-bottom: 8px; display: flex; gap: 10px; align-items: center; }
.list-card h3 { margin-bottom: 8px; font-size: 20px; }
.list-card p { font-size: 14px; color: var(--neutral-600); }

/* 资讯详情正文 */
.article-body { font-size: 15px; color: var(--neutral-700); }
.article-body h2 { font-size: 22px; margin: 32px 0 14px; }
.article-body h3 { font-size: 18px; margin: 26px 0 10px; }
.article-body p { margin-bottom: 16px; }
.article-body img { border-radius: var(--radius-lg); margin: 20px 0; width: 100%; height: auto; }
.article-meta { display: flex; gap: 14px; font-size: 13px; color: var(--neutral-500); margin: 12px 0 28px; flex-wrap: wrap; }
.prevnext { display: flex; gap: 14px; margin-top: 34px; }
.prevnext a {
  flex: 1; border: 1px solid var(--neutral-200); border-radius: var(--radius-md); padding: 16px 18px;
  color: var(--neutral-700); background: var(--neutral-50); transition: all .3s ease;
}
.prevnext a:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-soft); }
.prevnext a .pn-label { display: block; font-size: 12px; color: var(--neutral-500); margin-bottom: 4px; }
.prevnext a .pn-title { font-size: 14px; line-height: 1.5; display: block; }
.prevnext .only { flex: 0 0 auto; width: 100%; }

/* 相关阅读 */
.related { margin-top: 44px; }
.related h3 { margin-bottom: 20px; }

/* ---------- 两栏布局（列表 + 侧栏） ---------- */
.layout-side { display: grid; grid-template-columns: 1fr 300px; gap: 36px; align-items: start; }
.sidebar { position: sticky; top: 84px; }
.side-ad { background: linear-gradient(160deg, var(--color-primary) 0%, #4f86ff 100%); color: #fff; border-radius: var(--radius-lg); padding: 28px 22px; text-align: center; }
.side-ad h3 { color: #fff; font-size: 18px; margin-bottom: 8px; }
.side-ad p { font-size: 13px; color: rgba(255,255,255,.85); margin-bottom: 16px; }
.side-ad .side-qr { width: 130px; height: 130px; background: #fff; border-radius: var(--radius-md); padding: 6px; margin: 0 auto 16px; }
.side-ad .btn--white { width: 100%; }

/* ---------- 首页资讯卡片 ---------- */
.news-card { overflow: hidden; padding: 0; }
.news-card .nc-img { width: 100%; height: 190px; object-fit: cover; }
.news-card .nc-body { padding: 20px 22px 22px; }
.news-card .nc-date { font-size: 13px; color: var(--neutral-500); margin-bottom: 8px; }
.news-card h3 { font-size: 18px; line-height: 1.5; margin-bottom: 8px; }
.news-card p { font-size: 14px; color: var(--neutral-600); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- 行业方案卡片 ---------- */
.sol-card .sol-icon { width: 56px; height: 56px; border-radius: var(--radius-md); background: var(--color-primary-soft); color: var(--color-primary); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.sol-card .sol-icon svg { width: 28px; height: 28px; }
.sol-card .sol-icon img { width: 56px; height: 56px; border-radius: 12px; object-fit: cover; display: block; }
.sol-card h3 { font-size: 20px; }
.sol-card .sol-more { font-size: 13px; color: var(--color-primary); font-weight: 500; }
/* 行业方案横向卡（首页概览用，与核心价值竖向卡差异化） */
.sol-row-card { display: flex; align-items: center; gap: 18px; text-align: left; padding: 24px; }
.sol-row-card .sol-icon { width: 56px; height: 56px; border-radius: var(--radius-md); background: var(--color-primary-soft); color: var(--color-primary); display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-bottom: 0; }
.sol-row-card .sol-icon svg { width: 28px; height: 28px; }
.sol-row-card .sol-text { flex: 1; min-width: 0; }
.sol-row-card h3 { font-size: 19px; margin-bottom: 6px; }
.sol-row-card p { font-size: 14px; color: var(--neutral-600); }
.sol-row-card .sol-more { font-size: 13px; color: var(--color-primary); font-weight: 500; flex-shrink: 0; white-space: nowrap; }
.sol-row-card .sol-img { width: 64px; height: 64px; border-radius: 12px; object-fit: cover; flex-shrink: 0; }

/* ---------- 机型 logo 墙 ---------- */
.device-wall { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.device-wall .dv {
  background: #fff; border: 1px solid var(--neutral-200); border-radius: var(--radius-md);
  padding: 18px 12px; display: flex; flex-direction: column; align-items: center; gap: 8px;
  filter: grayscale(1); opacity: .85; transition: all .3s ease;
}
.device-wall .dv:hover { filter: grayscale(0); opacity: 1; transform: translateY(-4px); border-color: var(--color-primary); }
.device-wall .dv img { height: 34px; width: auto; }
.device-wall .dv span { font-size: 12px; color: var(--neutral-600); }

/* ---------- 套餐卡片 ---------- */
.price-card { position: relative; text-align: center; padding: 34px 26px; }
.price-card.is-hot { border: 2px solid var(--color-primary); box-shadow: 0 12px 30px rgba(52,112,255,.14); }
.price-card .pc-badge { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--color-primary); color: #fff; font-size: 12px; padding: 4px 16px; border-radius: 999px; }
.price-card .pc-name { font-size: 20px; font-weight: 700; color: var(--neutral-800); margin-bottom: 6px; }
.price-card .pc-fit { font-size: 13px; color: var(--neutral-500); margin-bottom: 16px; }
.price-card .pc-desc { font-size: 13px; color: var(--neutral-600); line-height: 1.7; margin: -8px 0 16px; }
.price-card .pc-price { font-size: 26px; font-weight: 700; color: var(--color-primary); margin-bottom: 20px; }
.price-card .pc-price small { font-size: 13px; font-weight: 400; color: var(--neutral-500); }
.price-card ul { text-align: left; margin-bottom: 24px; }
.price-card ul li { font-size: 14px; color: var(--neutral-600); padding: 7px 0 7px 24px; position: relative; }
.price-card ul li::before { content: "✓"; position: absolute; left: 0; color: var(--color-primary); font-weight: 700; }
.price-card .btn { width: 100%; }

/* ---------- 客户评价 ---------- */
#testimonials {
  background-image:
    repeating-linear-gradient(0deg, rgba(52, 112, 255, 0.035) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg, rgba(52, 112, 255, 0.035) 0 1px, transparent 1px 28px);
}
.testi-card { text-align: left; }
.testi-card .quote { font-size: 14px; color: var(--neutral-700); line-height: 1.9; margin-bottom: 20px; }
.testi-card .quote::before { content: "“"; color: var(--color-primary); font-size: 22px; font-weight: 700; }
.testi-card .t-author { display: flex; align-items: center; gap: 12px; }
.testi-card .t-avatar { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; }
.testi-card .t-name { font-size: 14px; font-weight: 600; color: var(--neutral-800); }
.testi-card .t-role { font-size: 12px; color: var(--neutral-500); }
.testi-card .t-co { font-size: 12px; color: var(--color-primary); }

/* ---------- 号码类型 ---------- */
.type-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.type-item { background: #fff; border: 1px solid var(--neutral-200); border-radius: var(--radius-lg); padding: 24px 16px; text-align: center; box-shadow: var(--shadow-card); transition: all .3s ease; }
.type-item:hover { transform: translateY(-6px); border-color: var(--color-primary); box-shadow: var(--shadow-card-hover); }
.type-item img { width: 46px; height: 46px; margin: 0 auto 12px; }
.type-item h4 { font-size: 16px; margin-bottom: 6px; }
.type-item p { font-size: 12px; color: var(--neutral-500); }

/* ---------- 价值数据带 ---------- */
.stat-band { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; text-align: center; }
.stat-band .sb { padding: 8px 0; transition: transform .4s ease; }
.stat-band .sb:hover { transform: translateY(-4px); }
.stat-band .sb-num { font-size: 36px; font-weight: 700; color: #fff; margin-bottom: 6px; display: inline-block; animation: sbFloat 4s ease-in-out infinite; }
.stat-band .sb:nth-child(2) .sb-num { animation-delay: .4s; }
.stat-band .sb:nth-child(3) .sb-num { animation-delay: .8s; }
@keyframes sbFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }
.stat-band .sb-num em { color: var(--color-primary); font-style: normal; }
.stat-band .sb-num .sb-arrow { display: inline-block; animation: arrowUp 1.6s ease-in-out infinite; }
.stat-band .sb-num .sb-roll { display: inline-block; }
.stat-band .sb-num .roll-num { display: inline-block; min-width: .62em; text-align: center; font-variant-numeric: tabular-nums; }
@keyframes arrowUp { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }
.stat-band .sb-label { font-size: 14px; color: #aab3c1; }
.stat-band .sb-desc { font-size: 12px; color: #7d8796; margin-top: 4px; }

/* ---------- 底部 CTA ---------- */
.cta-band { background: linear-gradient(120deg, #1E2836 0%, #243650 60%, #2B5CE0 100%); color: #fff; text-align: center; padding: 72px 0; }
.cta-band h2 { color: #fff; margin-bottom: 12px; }
.cta-band p { color: #b9c2d1; margin-bottom: 30px; }
.cta-band .cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- 体验区（手机模拟屏） ---------- */
.experience { }
.hidden { display: none !important; }
@media (min-width: 769px) {
  .hidden-md { display: block !important; }
}
.exp-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; align-items: start; }
.exp-phones { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.phone {
  background: transparent; border: none; border-radius: 0; padding: 0;
  box-shadow: none; max-width: 240px; margin: 0 auto; width: 100%;
}
.phone-screen { background: #0f1b2d; border-radius: 20px; overflow: hidden; min-height: 420px; position: relative; color: #fff; }
.phone .phone-label { text-align: center; font-size: 12px; color: var(--neutral-500); margin-top: 8px; }
.ps-status { display: flex; justify-content: space-between; padding: 12px 14px 0; font-size: 11px; color: #cfd6e0; }
.ps-body { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 40px 20px 90px; }
.ps-avatar {
  width: 76px; height: 76px; border-radius: 50%; background: #fff; overflow: hidden;
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px; position: relative;
}
.ps-avatar img { width: 100%; height: 100%; object-fit: cover; }
.ps-avatar i { font-size: 34px; color: var(--color-primary); }
.ps-name { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.ps-phone { font-size: 14px; color: #aab3c1; margin-bottom: 14px; }
.ps-tag { display: inline-block; font-size: 11px; background: rgba(52, 112, 255, 0.25); color: #9db8ff; border: 1px solid rgba(82, 132, 255, 0.6); padding: 4px 12px; border-radius: 999px; margin-bottom: 16px; }
.ps-actions { position: absolute; bottom: 26px; left: 0; right: 0; display: flex; justify-content: center; gap: 40px; }
.ps-actions .pa { width: 54px; height: 54px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; }
.ps-actions .pa svg { width: 22px; height: 22px; }
.pa-decline { background: #d9534f; }
.pa-accept { background: #2fbf71; }
/* 通话记录屏 */
.ps-log { padding: 40px 16px 90px; width: 100%; text-align: left; }
.ps-log .log-title { font-size: 14px; font-weight: 600; color: #fff; margin-bottom: 14px; text-align: center; }
.log-item { display: flex; align-items: center; gap: 10px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.08); }
.log-item .li-avatar { width: 36px; height: 36px; border-radius: 50%; background: #fff; overflow: hidden; flex-shrink: 0; display: flex; align-items: center; justify-content: center; position: relative; }
.log-item .li-avatar img { width: 100%; height: 100%; object-fit: cover; }
.log-item .li-avatar i { font-size: 16px; color: var(--color-primary); }
.log-item .li-avatar i svg { width: 18px; height: 18px; display: block; }
.log-item .li-main { flex: 1; min-width: 0; }
.log-item .li-name { font-size: 13px; font-weight: 600; color: #fff; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.log-item .li-phone { font-size: 11px; color: #8f9bb0; }
.log-item .li-time { font-size: 11px; color: #8f9bb0; }
/* 通话详情 */
.ps-detail { padding: 40px 20px 20px; width: 100%; text-align: left; }
.ps-detail .d-head { text-align: center; margin-bottom: 18px; }
.ps-detail .d-head .d-avatar { width: 64px; height: 64px; border-radius: 50%; background: #fff; margin: 0 auto 10px; overflow: hidden; display: flex; align-items: center; justify-content: center; position: relative; }
.ps-detail .d-head .d-avatar img { width: 100%; height: 100%; object-fit: cover; }
.ps-detail .d-head .d-avatar i { font-size: 28px; color: var(--color-primary); }
.ps-detail .d-name { font-size: 18px; font-weight: 700; color: #fff; }
.ps-detail .d-phone { font-size: 13px; color: #aab3c1; margin-bottom: 12px; }
.d-row { display: flex; justify-content: space-between; font-size: 12px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.08); color: #c7cfda; }
.d-row b { color: #fff; font-weight: 600; }
/* 体验表单 */
.exp-card { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-card-hover); padding: 30px; }
.exp-card h3 { margin-bottom: 6px; }
.exp-card .exp-sub { font-size: 13px; color: var(--neutral-500); margin-bottom: 22px; }
.exp-field { margin-bottom: 18px; }
.exp-field label { display: block; font-size: 13px; font-weight: 600; color: var(--neutral-800); margin-bottom: 8px; }
.exp-field .exp-input {
  width: 100%; height: 44px; border: 1px solid var(--neutral-200); border-radius: 10px; padding: 0 14px;
  font-size: 14px; color: var(--neutral-800); transition: border-color .3s ease; background: #fff;
}
.exp-field .exp-input:focus { outline: none; border-color: var(--color-primary); }
.exp-upload-row { display: flex; gap: 10px; }
.exp-upload-row .exp-input { flex: 1; color: var(--neutral-500); }
.exp-upload-btn { height: 44px; padding: 0 18px; border: 1px solid var(--color-primary); color: var(--color-primary); border-radius: 10px; font-size: 14px; background: #fff; transition: all .3s ease; flex-shrink: 0; }
.exp-upload-btn:hover { background: var(--color-primary-soft); }

/* ---------- 行业方案页内部区块 ---------- */
.sol-banner { position: relative; border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 16px; box-shadow: var(--shadow-card-hover); }
.sol-banner img { width: 100%; height: 380px; object-fit: cover; }
.sol-banner .sb-overlay {
  position: absolute; inset: 0; background: linear-gradient(90deg, rgba(30,40,54,.72) 0%, rgba(30,40,54,.18) 60%, transparent 100%);
  display: flex; align-items: flex-end; padding: 40px;
}
.sol-banner .sb-title { color: #fff; font-size: 30px; margin-bottom: 6px; }
.sol-banner .sb-sub { color: rgba(255,255,255,.85); font-size: 14px; }
.sol-block { padding: 64px 0; border-bottom: 1px solid var(--neutral-200); }
.sol-block:last-child { border-bottom: none; }
.sol-block:nth-child(even) { background: var(--neutral-50); }
.sol-block .sol-sec { margin-bottom: 34px; }
.sol-block .sol-sec h3 { font-size: 22px; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.sol-block .sol-sec h3 .sec-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-primary); }
.pain-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.pain-list li {
  background: #fff; border: 1px solid var(--neutral-200); border-radius: var(--radius-md);
  padding: 20px 22px 20px 52px; font-size: 14px; color: var(--neutral-600); line-height: 1.9;
  box-shadow: var(--shadow-card); position: relative;
}
.pain-list li::before {
  content: "!"; position: absolute; left: 20px; top: 20px; width: 20px; height: 20px;
  border-radius: 50%; background: var(--warning); color: #fff; font-size: 13px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.value-grid .vg { background: #fff; border: 1px solid var(--neutral-200); border-radius: var(--radius-md); padding: 18px; }
.value-grid .vg-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--color-primary-soft); color: var(--color-primary); display: flex; align-items: center; justify-content: center; margin-bottom: 12px; }
.value-grid .vg-icon svg { width: 22px; height: 22px; }
.value-grid .vg h4 { font-size: 15px; margin-bottom: 6px; }
.value-grid .vg p { font-size: 13px; color: var(--neutral-600); }
.compare-row { display: grid; grid-template-columns: 1fr auto 1fr; gap: 18px; align-items: center; }
.compare-row .cr-cell { text-align: center; }
.compare-row .cr-cell img { max-width: 260px; margin: 0 auto 10px; border-radius: var(--radius-md); border: none; }
.compare-row .cr-arrow { color: var(--color-primary); font-size: 22px; font-weight: 700; }
.effect-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.effect-row .ef { text-align: center; }
.effect-row .ef img { max-width: 220px; margin: 0 auto 8px; border-radius: 0; border: none; box-shadow: none; }
.effect-row .ef span { font-size: 12px; color: var(--neutral-600); }
.chip-row { display: flex; flex-wrap: wrap; gap: 14px; }
.chip { display: inline-flex; align-items: center; gap: 10px; background: #fff; border: 1px solid var(--neutral-200); border-radius: 999px; padding: 12px 22px; font-size: 15px; color: var(--neutral-700); }
.chip img { width: 26px; height: 26px; }
.chip:hover { border-color: var(--color-primary); color: var(--color-primary); }
.anchor-nav { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin: 8px 0 10px; }
.anchor-nav a { font-size: 13px; padding: 8px 18px; border: 1px solid var(--neutral-200); border-radius: 999px; color: var(--neutral-700); background: #fff; transition: all .3s ease; }
.anchor-nav a:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-soft); }
.anchor-nav a.is-cur { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* ---------- 关于页 ---------- */
.about-intro { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: center; }
.about-intro .ai-img { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card-hover); }
.about-intro .ai-img img { width: 100%; height: 400px; object-fit: cover; }
.about-intro h2 { margin-bottom: 16px; }
.about-intro p { font-size: 14px; color: var(--neutral-600); margin-bottom: 14px; }
.culture-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cul-card { text-align: center; }
.cul-card .cul-visual { width: 96px; height: 96px; margin: 0 auto 18px; color: var(--color-primary); }
.cul-card .cul-visual svg { width: 100%; height: 100%; }
.contact-panel { background: var(--neutral-50); border: 1px solid var(--neutral-200); border-radius: var(--radius-lg); padding: 36px; }
.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.contact-grid .ci { display: flex; gap: 14px; align-items: flex-start; }
.contact-grid .ci .icon-box { margin-bottom: 0; flex-shrink: 0; }
.contact-grid .ci h4 { font-size: 14px; color: var(--neutral-500); font-weight: 500; margin-bottom: 4px; }
.contact-grid .ci p, .contact-grid .ci a { font-size: 16px; color: var(--neutral-800); font-weight: 600; }
.contact-grid .ci .ci-qr { width: 120px; height: 120px; background: #fff; border: 1px solid var(--neutral-200); border-radius: var(--radius-md); padding: 6px; }

/* ---------- TAB ---------- */
.tabs { display: flex; gap: 8px; justify-content: center; margin-bottom: 32px; }
.tabs button {
  padding: 10px 28px; border-radius: 999px; font-size: 14px; color: var(--neutral-600);
  border: 1px solid var(--neutral-200); background: #fff; transition: all .3s ease;
}
.tabs button.is-active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.tab-pane { display: none; }
.tab-pane.is-active { display: block; }
.empty-state { text-align: center; padding: 56px 20px; color: var(--neutral-500); font-size: 14px; border: 1px dashed var(--neutral-300); border-radius: var(--radius-lg); background: var(--neutral-50); }

/* ---------- 滚动入场 ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .4s ease, transform .4s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- 图片懒加载占位 ---------- */
img[loading="lazy"] { background: var(--neutral-100); }

/* ---------- 响应式 ---------- */
@media (max-width: 1199px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .type-row { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
  .device-wall { grid-template-columns: repeat(4, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step:nth-child(2)::before { display: none; }
  .exp-layout { grid-template-columns: 1fr; }
  .layout-side { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .effect-row { grid-template-columns: repeat(2, 1fr); }
  .pain-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .section { padding: 56px 0; }
  h1 { font-size: 28px; }
  h2 { font-size: 24px; }
  h3 { font-size: 20px; }
  .section-head { margin-bottom: 36px; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .type-row { grid-template-columns: repeat(2, 1fr); }
  .device-wall { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; padding: 48px 0 32px; }
  .hero { padding: 64px 0 56px; }
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero h1 { font-size: 30px; }
  .hero-visual .hv-chip.c1 { left: -6px; }
  .hero-visual .hv-chip.c2 { right: -6px; }
  .hv-phones { gap: 10px; }
  .hv-phone { width: 148px; padding: 7px 7px 5px; border-radius: 24px; }
  .hv-phone .hp-screen { min-height: 264px; border-radius: 18px; padding-top: 22px; }
  .hv-phone--small { width: 116px; }
  .hv-phone--small .hp-screen { min-height: 210px; padding-top: 18px; }
  .hp-status { padding: 4px 12px 0; font-size: 10px; }
  .hp-call { padding: 34px 12px 62px; }
  .hv-phone--small .hp-call { padding: 26px 10px 52px; }
  .hp-logo { width: 48px; height: 48px; margin-bottom: 10px; }
  .hv-phone--small .hp-logo { width: 38px; height: 38px; margin-bottom: 8px; }
  .hp-name { font-size: 16px; }
  .hv-phone--small .hp-name { font-size: 13px; }
  .hp-num { font-size: 11px; margin-bottom: 9px; }
  .hv-phone--small .hp-num { font-size: 10px; margin-bottom: 7px; }
  .hp-badge { font-size: 8px; padding: 3px 8px; }
  .hv-phone--small .hp-badge { font-size: 7px; padding: 2px 6px; }
  .hp-actions { bottom: 15px; gap: 26px; }
  .hv-phone--small .hp-actions { bottom: 12px; gap: 20px; }
  .hp-act { width: 36px; height: 36px; }
  .hp-act svg { width: 15px; height: 15px; }
  .hv-phone--small .hp-act { width: 28px; height: 28px; }
  .hv-phone--small .hp-act svg { width: 12px; height: 12px; }
  .pain-list { grid-template-columns: 1fr; }
  .sol-row-card { flex-direction: column; text-align: center; }
  .sol-row-card p { flex: none; }
  .site-nav { display: none; }
  .header-actions .header-tel { display: none; }
  .header-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .steps, .steps--4 { grid-template-columns: 1fr; gap: 20px; }
  .step::before { display: none; }
  .timeline::before { left: 18px; }
  .tl-item { padding: 0 0 36px 56px; }
  .tl-dot { left: 18px; width: 44px; height: 44px; font-size: 13px; }
  .stat-band { grid-template-columns: 1fr; gap: 28px; }
  .compare-row { grid-template-columns: 1fr; }
  .compare-row .cr-arrow { transform: rotate(90deg); display: inline-block; }
  .effect-row { grid-template-columns: repeat(2, 1fr); }
  .effect-row .ef img { max-width: 150px; }
  .value-grid { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; }
  .about-intro .ai-img img { height: 240px; }
  .culture-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .exp-phones { grid-template-columns: 1fr; }
  .exp-card { padding: 22px; }
  .sol-banner img { height: 240px; }
  .sol-banner .sb-overlay { padding: 22px; }
  .sol-banner .sb-title { font-size: 22px; }
  .sol-block { padding: 44px 0; }
  .prevnext { flex-direction: column; }
  .prevnext .only { width: 100%; }
  .page-hero { padding: 44px 0 36px; }
  .section-head--left { text-align: center; margin-left: auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero::before, .hero::after, .hero-visual .hv-chip { animation: none; }
  * { transition-duration: .01ms !important; }
}