@charset "UTF-8";
/* ==========================================================================
   智合聚通 官网全站样式
   核心业务：企业电话号码认证 / 站点核心关键词：400电话号码认证
   ========================================================================== */

:root {
  /* 品牌色 */
  --primary: #3470FF;
  --primary-dark: #2A5BD7;
  --primary-soft: #EAF0FF;
  --accent: #5B8C9E;

  /* 中性色阶 */
  --ink: #0B1220;
  --slate-900: #101828;
  --text: #3F4A5A;
  --text-2: #5A6472;
  --text-3: #8A93A2;
  --line: #D8DEE8;
  --line-soft: #EAEFF5;
  --paper: #FFFFFF;
  --vellum: #F5F7FA;
  --carbon: #101828;

  /* 功能色 */
  --ok: #1F9D6B;
  --risk: #D33A2C;
  --warn: #B7791F;

  /* 尺寸 */
  --page: 1200px;
  --gutter: 32px;
  --sec-y: 88px;
  --radius: 8px;
  --nav-h: 72px;
  --shadow: 0 1px 3px rgba(16, 24, 40, .08), 0 1px 2px -1px rgba(16, 24, 40, .06);
  --shadow-hover: 0 12px 28px -8px rgba(16, 24, 40, .18), 0 4px 10px -4px rgba(16, 24, 40, .10);

  /* 动效 */
  --ease: cubic-bezier(.4, 0, .2, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", Arial, sans-serif;
  --font-num: "DIN Alternate", "HarmonyOS Sans", var(--font-sans);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--paper);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; border: 0; }
a { color: var(--primary); text-decoration: none; transition: color .3s var(--ease); }
a:hover { color: var(--primary-dark); }
ul, ol { margin: 0; padding: 0; list-style: none; }
p { margin: 0 0 16px; }
button { font-family: inherit; }
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 16px;
  color: var(--slate-900);
  font-weight: 600;
  letter-spacing: -0.01em;
}
h1 { font-size: 48px; line-height: 1.2; letter-spacing: -0.02em; }
h2 { font-size: 32px; line-height: 1.3; }
h3 { font-size: 24px; line-height: 1.35; letter-spacing: 0; }
h4 { font-size: 20px; line-height: 1.4; letter-spacing: 0; }
h5 { font-size: 18px; line-height: 1.45; letter-spacing: 0; }
h6 { font-size: 16px; line-height: 1.5; letter-spacing: 0; }
strong { color: var(--slate-900); font-weight: 600; }

/* 可见焦点 */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ---------- 布局 ---------- */
.container {
  width: 100%;
  max-width: var(--page);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.sec { padding: var(--sec-y) 0; }
.sec-white { background: var(--paper); }
.sec-gray { background: var(--vellum); }
.sec-dark { background: var(--carbon); color: #C7D0DE; }
.sec-dark h2, .sec-dark h3, .sec-dark h4 { color: #FFFFFF; }
.sec-blue { background: linear-gradient(160deg, #F2F6FF 0%, #EAF0FF 100%); }
.sec-tight { padding: 56px 0; }
.sec-adv { position: relative; overflow: hidden; }
.sec-adv::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(560px 260px at 16% 18%, rgba(52, 112, 255, .10), transparent 70%),
    radial-gradient(520px 240px at 84% 76%, rgba(52, 112, 255, .08), transparent 70%);
}
.sec-adv > .container { position: relative; z-index: 1; }

.grid { display: grid; gap: 24px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.g-2-1 { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
.g-1-2 { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); }
.layout-main { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 40px; align-items: start; }

/* ---------- 区块标题 ---------- */
.sec-head {
  max-width: 760px;
  margin: 0 auto 48px;
  text-align: center;
}
.sol-detail .sec-head { max-width: 1080px; }
.eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--primary);
  text-transform: uppercase;
}
.eyebrow::before { content: ""; display: inline-block; width: 16px; height: 2px; margin-right: 8px; vertical-align: middle; background: var(--primary); }
.sec-title { margin-bottom: 12px; font-size: clamp(22px, 2.6vw, 32px); }
.sec-sub { margin: 0; font-size: 18px; line-height: 1.7; color: var(--text-2); }
.sec-dark .sec-sub { color: #A9B5C6; }
.sec-dark .eyebrow { color: #7FA5FF; }
.sec-dark .eyebrow::before { background: #7FA5FF; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.2;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.btn-primary { background: var(--primary); color: #FFFFFF; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--primary-dark); color: #FFFFFF; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-ghost { background: #FFFFFF; color: var(--slate-900); border-color: var(--line); }
.btn-ghost:hover { color: var(--primary); border-color: var(--primary); transform: translateY(-2px); }
.btn-dark { background: var(--carbon); color: #FFFFFF; }
.btn-dark:hover { background: #000000; color: #FFFFFF; transform: translateY(-2px); }
.btn-line { background: transparent; color: #FFFFFF; border-color: rgba(255, 255, 255, .40); }
.btn-line:hover { background: #FFFFFF; color: var(--slate-900); border-color: #FFFFFF; transform: translateY(-2px); }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 16px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .98);
  border-bottom: 1px solid var(--line-soft);
  transition: background-color .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, .86);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  box-shadow: 0 4px 18px -8px rgba(16, 24, 40, .20);
  border-bottom-color: transparent;
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: var(--nav-h);
  max-width: var(--page);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.brand { display: inline-flex; align-items: center; gap: 10px; flex: none; }
.brand img { width: auto; height: 34px; max-width: 170px; object-fit: contain; }
.brand-name { font-size: 20px; font-weight: 700; color: var(--ink); letter-spacing: -0.02em; }
.brand-sub { display: block; font-size: 11px; font-weight: 500; letter-spacing: .06em; color: var(--text-3); text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--radius);
  transition: color .3s var(--ease), background-color .3s var(--ease);
}
.nav-links a:hover { color: var(--primary); background: var(--primary-soft); }
.nav-links a.is-active { color: var(--primary); }
.nav-links a.is-active::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  margin: 6px auto -8px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-side { display: flex; align-items: center; gap: 16px; flex: none; }
.nav-tel { display: inline-flex; align-items: center; gap: 6px; font-size: 15px; font-weight: 600; color: var(--primary); font-family: var(--font-num); }
.nav-tel:hover { color: var(--primary-dark); }
.nav-tel span { font-size: 12px; font-weight: 400; color: var(--text-3); font-family: var(--font-sans); }
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}
.nav-toggle i { display: block; width: 18px; height: 2px; margin: 4px auto; background: var(--slate-900); border-radius: 2px; transition: transform .3s var(--ease), opacity .3s var(--ease); }
.site-header.is-open .nav-toggle i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.site-header.is-open .nav-toggle i:nth-child(2) { opacity: 0; }
.site-header.is-open .nav-toggle i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h);
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 99;
  padding: 20px var(--gutter) 40px;
  overflow-y: auto;
  background: #FFFFFF;
  border-top: 1px solid var(--line-soft);
}
.mobile-menu.is-open { display: block; }
.mobile-menu a.mm-link {
  display: block;
  padding: 14px 4px;
  font-size: 17px;
  font-weight: 500;
  color: var(--slate-900);
  border-bottom: 1px solid var(--line-soft);
}
.mobile-menu a.mm-link.is-active { color: var(--primary); }
.mobile-menu .btn { margin-top: 12px; }
.mm-contact { margin: 24px 0 0; font-size: 14px; color: var(--text-2); }
.mm-contact strong { display: block; font-family: var(--font-num); font-size: 20px; }
body.no-scroll { overflow: hidden; }

/* ---------- 首页 Hero ---------- */
.hero {
  --gx: 50%;
  --gy: 40%;
  position: relative;
  overflow: hidden;
  padding: 80px 0 88px;
  color: var(--text);
  background: linear-gradient(140deg, #F7F9FF 0%, #EAF0FF 42%, #F4F7FF 72%, #FFFFFF 100%);
  background-size: 180% 180%;
  animation: heroShift 16s var(--ease) infinite alternate;
}
@keyframes heroShift {
  0% { background-position: 0% 30%; }
  100% { background-position: 100% 70%; }
}
.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(480px circle at var(--gx, 50%) var(--gy, 40%), rgba(52, 112, 255, .13), transparent 70%);
  opacity: 0;
  transition: opacity .5s var(--ease);
  pointer-events: none;
}
.hero:hover::before { opacity: 1; }
.hero::after {
  content: "";
  position: absolute;
  top: -180px;
  right: -140px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, rgba(52, 112, 255, .16), rgba(52, 112, 255, 0) 68%);
  pointer-events: none;
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(30px, 4.4vw, 54px); line-height: 1.2; margin-bottom: 20px; }
.hero h1 em { font-style: normal; color: var(--primary); }
.hero-lede { max-width: 520px; margin-bottom: 28px; font-size: 18px; line-height: 1.75; color: var(--text-2); }
.hero-points {
  display: grid;
  grid-template-columns: repeat(2, auto);
  justify-content: start;
  gap: 14px 32px;
  margin: 28px 0 0;
}
.hero-points li {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0;
  font-size: 15px;
  color: var(--slate-900);
  background: none;
  border: 0;
}
.hero-points li::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(52, 112, 255, .14);
}

/* ---------- 手机演示屏 ---------- */
.phones { display: flex; gap: 24px; justify-content: center; align-items: flex-end; }
.phone-wrap {
  flex: 1 1 0;
  max-width: 252px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.phone {
  width: 100%;
  padding: 10px;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow-hover);
  animation: phoneIn .6s var(--ease-out) both;
}
.phone-wrap:nth-child(1) .phone { animation-delay: 0ms; }
.phone-wrap:nth-child(2) .phone { animation-delay: 120ms; }
.phone-wrap:nth-child(3) .phone { animation-delay: 240ms; }
@keyframes phoneIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
.phone-screen {
  min-height: 300px;
  padding: 16px 12px;
  background: #F7F9FC;
  border-radius: 16px;
  overflow: hidden;
}
.hero .phone-screen { min-height: 450px; }
.exp-phones .phone-screen { min-height: 380px; }
.hero .phone-screen,
.exp-phones .phone-screen {
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
}
/* hero 手机：顶部信息贴顶、内容紧凑靠上 */
.hero .phone-screen {
  justify-content: flex-start;
  padding-top: 10px;
}
.hero .phone-screen .ui-bar { margin-bottom: 6px; }
/* 来电手机：LOGO 放大、名称紧随 LOGO 下方、接听/挂断按钮放大并沉底 */
.hero .phone-wrap:first-child .ui-avatar {
  width: 76px;
  height: 76px;
  margin: 18px auto 8px;
}
.hero .phone-wrap:first-child .ui-actions {
  margin-top: auto;
  margin-bottom: 0;
}
.hero .phone-wrap:first-child .ui-dot {
  width: 48px;
  height: 48px;
  font-size: 21px;
}
/* 通话记录手机：记录列表贴顶 */
.hero .phone-wrap:nth-child(2) .ui-list { margin-top: 2px; }
/* 体验区手机：内容贴顶紧凑、按钮沉底 */
.exp-phones .phone-screen {
  justify-content: flex-start;
  padding-top: 10px;
}
.exp-phones .phone-screen .ui-bar { margin-bottom: 6px; }
.exp-phones .phone-wrap .ui-avatar { margin: 16px auto 8px; }
.exp-phones .phone-wrap .ui-actions { margin-top: auto; margin-bottom: 0; }
.exp-phones .phone-wrap:last-child .ui-list { margin-top: 2px; }
.phone-cap {
  margin-top: 14px;
  padding: 0;
  font-size: 13px;
  text-align: center;
  color: var(--text-2);
}
.ui-bar { display: flex; align-items: center; justify-content: space-between; font-size: 11px; color: var(--text-3); margin-bottom: 14px; }
.ui-label { font-size: 11px; color: var(--text-3); }
.ui-name { font-size: 17px; font-weight: 600; color: var(--slate-900); word-break: break-word; }
.ui-num { font-family: var(--font-num); font-size: 14px; color: var(--text-2); }
.ui-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin: 4px auto 12px;
  background: var(--primary-soft);
  border-radius: 50%;
  overflow: hidden;
}
.ui-avatar img { width: 100%; height: 100%; object-fit: contain; border-radius: 50%; padding: 14%; background: #FFFFFF; }
.ui-avatar i { font-style: normal; font-size: 20px; color: var(--primary); font-weight: 600; }
.ui-avatar.ripple {
  position: relative;
  overflow: visible;
  animation: avatarGlow 4.2s var(--ease-out) infinite;
}
.ui-avatar.ripple img { position: relative; z-index: 1; }
.ui-avatar.ripple .ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(52, 112, 255, .22);
  animation: ringSpread 4.2s var(--ease-out) infinite;
  pointer-events: none;
}
.ui-avatar.ripple .ring:nth-child(1) { animation-delay: 0s; }
.ui-avatar.ripple .ring:nth-child(2) { animation-delay: 1.4s; }
.ui-avatar.ripple .ring:nth-child(3) { animation-delay: 2.8s; }
@keyframes ringSpread {
  0% { transform: scale(.96); opacity: 0; }
  16% { transform: scale(1.02); opacity: .55; }
  100% { transform: scale(2.7); opacity: 0; }
}
@keyframes avatarGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52, 112, 255, 0); }
  50% { box-shadow: 0 0 0 12px rgba(52, 112, 255, .16); }
}
.ui-center { text-align: center; }
.ui-actions { display: flex; justify-content: center; gap: 10px; margin-top: 18px; }
.ui-dot { display: flex; align-items: center; justify-content: center; width: 34px; height: 34px; font-size: 14px; color: #FFFFFF; background: var(--ok); border-radius: 50%; }
.ui-dot.red { background: var(--risk); }
.ui-dot.red svg { transform: rotate(135deg); }
.ui-dot.gray { background: var(--text-3); }
.ui-list { margin-top: 10px; }
.ui-list li { display: flex; align-items: center; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--line-soft); }
.ui-list li:last-child { border-bottom: 0; }
.ui-list .ui-list-main { flex: 1; min-width: 0; }
.ui-list .ui-list-main b { display: block; font-size: 13px; color: var(--slate-900); font-weight: 600; }
.ui-list .ui-list-main span { display: block; font-size: 11px; color: var(--text-3); font-family: var(--font-num); }
.ui-card { padding: 12px; background: #FFFFFF; border: 1px solid var(--line-soft); border-radius: var(--radius); }
.ui-card + .ui-card { margin-top: 10px; }
.ui-row { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--text-2); }
.ui-row + .ui-row { margin-top: 8px; }
.ui-row b { color: var(--slate-900); font-weight: 600; }
.ui-tag { display: inline-block; padding: 2px 8px; font-size: 10px; color: var(--primary); background: var(--primary-soft); border-radius: 4px; }
.wave { display: flex; align-items: flex-end; gap: 3px; height: 22px; margin: 12px 0 4px; }
.wave span { flex: 1; background: var(--primary); border-radius: 2px; animation: waveUp 1.4s var(--ease) infinite; }
.wave span:nth-child(1) { height: 40%; animation-delay: 0s; }
.wave span:nth-child(2) { height: 75%; animation-delay: .1s; }
.wave span:nth-child(3) { height: 30%; animation-delay: .2s; }
.wave span:nth-child(4) { height: 90%; animation-delay: .3s; }
.wave span:nth-child(5) { height: 55%; animation-delay: .4s; }
.wave span:nth-child(6) { height: 80%; animation-delay: .5s; }
.wave span:nth-child(7) { height: 45%; animation-delay: .6s; }
@keyframes waveUp {
  0%, 100% { transform: scaleY(.5); }
  50% { transform: scaleY(1); }
}

/* ---------- 行业方案滑动 ---------- */
.ind-slider { position: relative; padding: 4px 0 8px; }
.ind-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: calc((100% - 72px) / 4);
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: 6px;
}
.ind-track::-webkit-scrollbar { display: none; }
.ind-card {
  scroll-snap-align: start;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.ind-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(52, 112, 255, .55); }
.ind-card img { width: 100%; height: 168px; object-fit: cover; }
.ind-body { padding: 20px 22px 22px; }
.ind-body h3 { margin-bottom: 8px; font-size: 19px; }
.ind-body p { font-size: 14px; color: var(--text-2); margin-bottom: 14px; }
.ind-controls { display: flex; align-items: center; justify-content: center; gap: 16px; margin-top: 22px; }
.ind-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 16px;
  color: var(--slate-900);
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 50%;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: color .3s var(--ease), border-color .3s var(--ease), background-color .3s var(--ease), transform .3s var(--ease);
}
.ind-nav:hover { color: #FFFFFF; background: var(--primary); border-color: var(--primary); transform: scale(1.05); }
.ind-dots { display: flex; justify-content: center; gap: 8px; }
.ind-dots i { display: block; width: 8px; height: 8px; border-radius: 50%; background: #C9D3E4; cursor: pointer; transition: background-color .3s var(--ease), transform .3s var(--ease); }
.ind-dots i.is-on { background: var(--primary); transform: scale(1.25); }

/* ---------- 办理流程原型步骤图 ---------- */
.proto { display: flex; align-items: stretch; }
.proto-step {
  flex: 1 1 0;
  min-width: 0;
  position: relative;
  padding: 26px 22px 22px;
  background: #F7FAFF;
  border: 1.5px dashed #8FABE8;
  border-radius: 14px;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease), background-color .35s var(--ease);
}
.proto-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--primary); background: #FFFFFF; }
.proto-idx {
  position: absolute;
  top: -14px;
  left: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 600;
  color: #FFFFFF;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(52, 112, 255, .15);
}
.proto-mock {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 86px;
  padding: 12px 14px;
  margin-bottom: 18px;
  background: #EDF3FF;
  border: 1px dashed #B9CCF0;
  border-radius: 10px;
}
.pm-bar { display: flex; gap: 4px; margin-bottom: 2px; }
.pm-bar i { width: 6px; height: 6px; border-radius: 50%; background: #AEC4F0; }
.pm-line { display: block; height: 8px; border-radius: 4px; background: linear-gradient(90deg, #C9D8F7, #E4ECFC); }
.pm-line.short { width: 62%; }
.pm-line.half { width: 45%; }
.pm-check {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin-top: auto;
  border-radius: 50%;
  background: #D7E5FF;
}
.pm-check i {
  display: block;
  width: 8px;
  height: 4px;
  margin: 0;
  border-left: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  transform: rotate(-45deg) translate(1px, -1px);
}
.pm-chip {
  align-self: flex-start;
  margin-top: auto;
  padding: 2px 8px;
  font-size: 10px;
  line-height: 1.6;
  color: var(--primary);
  background: #D7E5FF;
  border-radius: 4px;
}
.proto-arrow { display: flex; align-items: center; justify-content: center; flex: none; width: 44px; color: var(--primary); font-size: 20px; }
.proto-step h3 { margin: 0 0 8px; font-size: 18px; }
.proto-step p { margin: 0; font-size: 14px; color: var(--text-2); }

/* ---------- 卡片 ---------- */
.card {
  padding: 32px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(52, 112, 255, .55); }
.card h3 { margin-bottom: 10px; font-size: 20px; }
.card p { margin-bottom: 12px; font-size: 15px; color: var(--text-2); }
.card p:last-child { margin-bottom: 0; }
.showcase .card-flat { box-shadow: none; text-align: center; border: 0; }
.showcase .card-flat:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.sol-cover { width: 100%; height: 168px; object-fit: cover; border-radius: 12px; margin-bottom: 16px; }
.card-top { display: flex; flex-direction: column; height: 100%; }
.card-ico {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: var(--radius);
}
.card-ico svg { width: 24px; height: 24px; }
.card-ico.plain { background: transparent; padding: 0; justify-content: flex-start; }
.link-arrow { display: inline-flex; align-items: center; gap: 6px; margin-top: auto; padding-top: 8px; font-size: 15px; font-weight: 500; }
.link-arrow::after { content: "\2192"; transition: transform .3s var(--ease); }
.link-arrow:hover::after { transform: translateX(4px); }
.card-hover-cover { overflow: hidden; }
.card-hover-cover img { transition: transform .35s var(--ease); }
.card-hover-cover:hover img { transform: scale(1.03); }

/* 标签 */
.tag {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  color: var(--primary);
  background: var(--primary-soft);
  border: 1px solid rgba(52, 112, 255, .16);
  border-radius: var(--radius);
  transition: background-color .3s var(--ease), color .3s var(--ease);
}
.tag:hover { background: var(--primary); color: #FFFFFF; }
.tag-gray { color: var(--text-2); background: var(--vellum); border-color: var(--line-soft); }
.tag-gray:hover { background: var(--slate-900); color: #FFFFFF; }
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 0; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 12px; }
.tag-cloud a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 15px;
  color: var(--slate-900);
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease), color .3s var(--ease);
}
.tag-cloud a:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--primary); color: var(--primary); }
.tag-cloud em { font-style: normal; font-size: 12px; color: var(--text-3); font-family: var(--font-num); }

/* ---------- 认证前后对比 ---------- */
.compare { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.compare-col { padding: 28px; background: var(--paper); border: 1px solid var(--line-soft); border-radius: var(--radius); }
.compare-col.before { border-top: 3px solid var(--risk); }
.compare-col.after { border-top: 3px solid var(--ok); }
.compare-col h3 { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 18px; }
.compare-col h3 .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--risk); }
.compare-col.after h3 .dot { background: var(--ok); }
.compare-col ul { margin-top: 8px; }
.compare-col li { position: relative; padding: 8px 0 8px 20px; font-size: 15px; color: var(--text-2); border-bottom: 1px dashed var(--line-soft); }
.compare-col li:last-child { border-bottom: 0; }
.compare-col li::before { content: ""; position: absolute; left: 2px; top: 17px; width: 6px; height: 6px; border-radius: 50%; background: var(--line); }

/* ---------- 数据条 ---------- */
.stat-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.stat { padding: 4px 0; }
.stat b { display: block; font-family: var(--font-num); font-size: clamp(28px, 3.4vw, 42px); font-weight: 600; line-height: 1.1; color: var(--primary); letter-spacing: -0.02em; }
.stat span { display: block; margin-top: 6px; font-size: 14px; color: var(--text-2); }
.sec-dark .stat b { color: #FFFFFF; }
.sec-dark .stat span { color: #A9B5C6; }

/* ---------- 流程 / 步骤条 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; counter-reset: step; }
.step { position: relative; padding: 24px; background: var(--paper); border: 1px solid var(--line-soft); border-radius: var(--radius); transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease); }
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary); }
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 14px;
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 600;
  color: #FFFFFF;
  background: var(--primary);
  border-radius: var(--radius);
}
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--text-2); margin-bottom: 0; }
.step-line { position: relative; }
.step-line::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 42px;
  height: 2px;
  background: linear-gradient(90deg, rgba(52, 112, 255, .28), rgba(52, 112, 255, .06));
}
.step-line > * { position: relative; z-index: 1; }

/* 流程图（横向） */
.flow { display: flex; align-items: stretch; gap: 0; flex-wrap: nowrap; }
.flow-node {
  flex: 1 1 0;
  min-width: 0;
  padding: 20px 18px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.flow-node:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary); }
.flow-node b { display: block; font-size: 16px; color: var(--slate-900); }
.flow-node span { display: block; margin-top: 6px; font-size: 13px; color: var(--text-2); }
.flow-node em { display: block; margin-bottom: 8px; font-style: normal; font-size: 12px; letter-spacing: .06em; color: var(--primary); font-family: var(--font-num); }
.flow-arrow { display: flex; align-items: center; justify-content: center; flex: none; width: 40px; color: var(--primary); font-size: 18px; }

/* 时间轴（纵向） */
.timeline { position: relative; margin: 0; padding-left: 32px; }
.timeline::before { content: ""; position: absolute; left: 9px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(180deg, var(--primary), rgba(52, 112, 255, .18)); }
.tl-item { position: relative; padding: 0 0 32px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 6px;
  width: 14px;
  height: 14px;
  background: #FFFFFF;
  border: 3px solid var(--primary);
  border-radius: 50%;
}
.tl-item h3 { margin-bottom: 8px; font-size: 19px; }
.tl-item p { margin-bottom: 10px; font-size: 15px; color: var(--text-2); }
.tl-note {
  padding: 12px 16px;
  font-size: 14px;
  color: var(--warn);
  background: #FFF9EE;
  border: 1px solid #F3E0BE;
  border-left: 3px solid var(--warn);
  border-radius: var(--radius);
}
.tl-note b { color: var(--warn); }

/* ---------- 列表 ---------- */
.list-cards { display: grid; gap: 20px; }
.list-item {
  display: block;
  padding: 28px 32px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.list-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(52, 112, 255, .55); }
.list-item h2, .list-item h3 { margin-bottom: 10px; font-size: 21px; color: var(--slate-900); }
.list-item p { margin-bottom: 12px; font-size: 15px; color: var(--text-2); }
.list-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; font-size: 13px; color: var(--text-3); }
.list-meta time { font-family: var(--font-num); }
.list-meta .sep { width: 4px; height: 4px; background: var(--line); border-radius: 50%; }

/* 序号列表 */
.num-list { counter-reset: nl; }
.num-list li {
  position: relative;
  padding: 14px 0 14px 44px;
  font-size: 15px;
  color: var(--text-2);
  border-bottom: 1px solid var(--line-soft);
}
.num-list li:last-child { border-bottom: 0; }
.num-list li::before {
  counter-increment: nl;
  content: counter(nl);
  position: absolute;
  left: 0;
  top: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: var(--radius);
}
.num-list li b { color: var(--slate-900); font-weight: 600; }

/* 勾选列表 */
.check-list li { position: relative; padding: 8px 0 8px 30px; font-size: 15px; color: var(--text-2); }
.check-list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  top: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  font-size: 12px;
  color: #FFFFFF;
  background: var(--ok);
  border-radius: 50%;
}

/* ---------- 表格 ---------- */
.table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.tbl { width: 100%; min-width: 640px; border-collapse: collapse; background: var(--paper); border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden; }
table.tbl th, table.tbl td { padding: 14px 18px; font-size: 14px; text-align: left; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
table.tbl th { font-weight: 600; color: var(--slate-900); background: var(--vellum); white-space: nowrap; }
table.tbl td { color: var(--text-2); }
table.tbl tbody tr:last-child td { border-bottom: 0; }
table.tbl tbody tr:hover td { background: #FAFBFE; }
table.tbl td b, table.tbl td strong { color: var(--slate-900); }
.cell-ok { color: var(--ok); font-weight: 600; }
.cell-risk { color: var(--risk); font-weight: 600; }

/* ---------- 面包屑 / 内页 Hero ---------- */
.page-hero {
  padding: 44px 0 40px;
  background: linear-gradient(180deg, #F3F7FF 0%, #FFFFFF 100%);
  border-bottom: 1px solid var(--line-soft);
}
.page-hero h1 { margin-bottom: 12px; font-size: clamp(26px, 3.4vw, 40px); }
.page-hero .page-lede { max-width: 760px; margin: 0; font-size: 17px; color: var(--text-2); }
.crumb { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 16px; font-size: 13px; color: var(--text-3); }
.crumb a { color: var(--text-2); }
.crumb a:hover { color: var(--primary); }
.crumb span.sep { color: var(--line); }

/* ---------- 分页 ---------- */
.pager { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 40px; }
.pager a, .pager span.pg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 14px;
  font-size: 14px;
  color: var(--slate-900);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: background-color .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}
.pager a:hover { color: var(--primary); border-color: var(--primary); }
.pager .is-current { color: #FFFFFF; background: var(--primary); border-color: var(--primary); font-weight: 600; }
.pager .is-disabled { color: var(--text-3); background: var(--vellum); border-color: var(--line-soft); cursor: not-allowed; }

/* ---------- 上一篇 / 下一篇 ---------- */
.post-nav { display: flex; flex-wrap: wrap; gap: 24px; margin: 40px 0 0; }
.post-nav .pn {
  flex: 0 1 calc(50% - 12px);
  max-width: calc(50% - 12px);
  padding: 20px 24px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.post-nav .pn:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--primary); }
.post-nav .pn span { display: block; margin-bottom: 6px; font-size: 12px; letter-spacing: .06em; color: var(--text-3); text-transform: uppercase; }
.post-nav .pn b { display: block; font-size: 16px; font-weight: 600; color: var(--slate-900); }
.post-nav .pn.next { text-align: right; }

/* ---------- TAB ---------- */
.tabs { margin-top: 32px; }
.tab-btns { display: flex; flex-wrap: wrap; gap: 8px; border-bottom: 1px solid var(--line-soft); }
.tab-btns [data-tab-btn] {
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.tab-btns [data-tab-btn]:hover { color: var(--primary); }
.tab-btns [data-tab-btn].is-active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-pane { display: none; padding-top: 28px; }
.tab-pane.is-active { display: block; }
.empty-state {
  padding: 48px 24px;
  font-size: 15px;
  color: var(--text-3);
  text-align: center;
  background: var(--vellum);
  border: 1px dashed var(--line);
  border-radius: var(--radius);
}

/* ---------- FAQ 手风琴 ---------- */
.faq-list { display: grid; gap: 12px; }
.faq-item { background: var(--paper); border: 1px solid var(--line-soft); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.faq-item.is-open { border-color: rgba(52, 112, 255, .5); }
.faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 20px 24px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  text-align: left;
  color: var(--slate-900);
  background: transparent;
  border: 0;
  cursor: pointer;
}
.faq-q .qi { flex: none; color: var(--primary); transition: transform .3s var(--ease); }
.faq-item.is-open .faq-q .qi { transform: rotate(180deg); }
.faq-a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .3s var(--ease); }
.faq-item.is-open .faq-a { grid-template-rows: 1fr; }
.faq-a > div { overflow: hidden; }
.faq-a p { margin: 0; padding: 0 24px 22px; font-size: 15px; color: var(--text-2); }

/* ---------- 右侧广告位 ---------- */
.ad-card {
  padding: 24px;
  background: linear-gradient(165deg, #F2F6FF 0%, #FFFFFF 60%);
  border: 1px solid rgba(52, 112, 255, .20);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.ad-card h3 { font-size: 17px; margin-bottom: 8px; }
.ad-card p { font-size: 14px; color: var(--text-2); }
.ad-card img.qr { width: 132px; height: 132px; margin: 4px auto 10px; border: 1px solid var(--line-soft); border-radius: var(--radius); }
.ad-card .qr-cap { font-size: 12px; color: var(--text-3); text-align: center; }
.ad-sticky { position: sticky; top: calc(var(--nav-h) + 20px); }
.ad-tel { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 12px; font-family: var(--font-num); font-size: 20px; font-weight: 600; color: var(--slate-900); }
.ad-tel:hover { color: var(--primary); }
.ad-list { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--line-soft); }
.ad-list a { display: flex; align-items: center; gap: 8px; font-size: 13px; line-height: 1.4; color: var(--text-2); transition: color .3s var(--ease), transform .3s var(--ease); }
.ad-list a::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); flex: none; }
.ad-list a:hover { color: var(--primary); transform: translateX(3px); }

/* ---------- 浮动咨询 ---------- */
.float-consult { position: fixed; right: 20px; top: 50%; transform: translateY(-50%); z-index: 90; display: flex; flex-direction: column; gap: 12px; }
.fc-item { position: relative; }
.fc-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  color: var(--primary);
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  cursor: pointer;
  transition: transform .3s var(--ease), background-color .3s var(--ease), color .3s var(--ease);
}
.fc-item:first-child .fc-btn::after {
  content: "";
  position: absolute;
  top: -3px;
  right: -3px;
  width: 11px;
  height: 11px;
  background: #FF3B30;
  border: 2px solid #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .25);
}
.fc-item:nth-child(2) .fc-btn { color: #07C160; }
.fc-item:nth-child(2) .fc-btn:hover { background: #07C160; border-color: #07C160; color: #FFFFFF; }
.fc-btn svg { width: 24px; height: 24px; }
.fc-btn.primary { background: var(--primary); color: #FFFFFF; border-color: transparent; }
.fc-btn.primary:hover { background: var(--primary-dark); border-color: transparent; }
.fc-btn:hover { transform: translateY(-3px); background: var(--primary); color: #FFFFFF; border-color: var(--primary); }
.fc-tip {
  position: absolute;
  right: 64px;
  top: 50%;
  transform: translate(8px, -50%);
  padding: 8px 14px;
  font-size: 13px;
  white-space: nowrap;
  color: #FFFFFF;
  background: var(--slate-900);
  border-radius: var(--radius);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}
.fc-item:hover .fc-tip { opacity: 1; transform: translate(0, -50%); }
.fc-qr {
  position: absolute;
  right: 64px;
  top: 50%;
  transform: translate(8px, -50%);
  width: 144px;
  padding: 12px 12px 8px;
  background: #FFFFFF;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}
.fc-item:hover .fc-qr { opacity: 1; transform: translate(0, -50%); }
.fc-qr img { width: 120px; height: 120px; max-width: none; }
.fc-qr figcaption { margin-top: 6px; font-size: 12px; color: var(--text-3); text-align: center; }

/* ---------- 页脚 ---------- */
.site-footer { padding: 64px 0 0; color: #A9B5C6; background: #0B1220; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1.3fr; gap: 40px; }
.foot-brand .brand-name { color: #FFFFFF; }
.foot-brand .brand-sub { color: #6B7A90; }
.foot-intro { margin: 16px 0 0; font-size: 14px; line-height: 1.8; color: #8B98AB; }
.foot-col h4 { margin-bottom: 16px; font-size: 15px; color: #FFFFFF; }
.foot-col ul { display: grid; gap: 10px; }
.foot-col a { font-size: 14px; color: #A9B5C6; }
.foot-col a:hover { color: #FFFFFF; }
.foot-links { display: flex; flex-wrap: wrap; gap: 10px 16px; }
.foot-contact li { display: flex; gap: 8px; font-size: 14px; line-height: 1.7; }
.foot-contact li b { flex: none; color: #6B7A90; font-weight: 400; }
.foot-contact a { color: #FFFFFF; }
.foot-qr { display: flex; flex-direction: column; align-items: center; gap: 12px; margin-top: 20px; text-align: center; }
.foot-qr img { width: 132px; height: 132px; background: #FFFFFF; border-radius: var(--radius); padding: 6px; }
.foot-qr figcaption { font-size: 13px; color: #6B7A90; line-height: 1.6; }
.foot-links-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  margin-top: 40px;
  padding: 18px 0;
  font-size: 13px;
  color: #6B7A90;
  border-top: 1px solid rgba(255, 255, 255, .08);
}
.foot-links-label { color: #8B98AB; }
.foot-links-bar a { color: #A9B5C6; }
.foot-links-bar a:hover { color: #FFFFFF; }
.foot-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
  padding: 24px 0;
  font-size: 13px;
  color: #6B7A90;
  border-top: 1px solid rgba(255, 255, 255, .08);
}
.foot-bottom a { color: #6B7A90; }
.foot-bottom a:hover { color: #FFFFFF; }

/* ---------- 400号码认证强调组件与图片组件 ---------- */
.kw-strip {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: 24px 32px;
  background: #FFFFFF;
  border: 1px solid rgba(52, 112, 255, .28);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.kw-strip .kw-ico { width: 72px; height: 72px; object-fit: contain; }
.kw-strip h2 { margin-bottom: 6px; font-size: 22px; }
.kw-strip p { margin: 0; font-size: 15px; color: var(--text-2); }
.kw-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.num-ico { display: block; width: 72px; height: 72px; margin-bottom: 16px; object-fit: contain; }
.num-ico-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: var(--radius);
}
.num-ico-icon svg { width: 32px; height: 32px; }
.shot {
  display: block;
  width: 100%;
  max-width: 250px;
  height: auto;
  margin: 0 auto 20px;
  border-radius: 14px;
}
.shot-wide { max-width: 780px; border-radius: var(--radius); }
.compare-img {
  display: block;
  width: 100%;
  max-width: 210px;
  height: auto;
  margin: 4px auto 16px;
  border-radius: 14px;
}
.compare-full { max-width: 640px; margin: 0 auto 32px; }
.compare-full img { width: 100%; height: auto; border: 1px solid var(--line-soft); border-radius: var(--radius); }
.brand-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 16px; }
.brand-grid .bi {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 12px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.brand-grid .bi:hover { transform: translateY(-3px); border-color: var(--primary); box-shadow: var(--shadow); }
.brand-grid .bi img { height: 34px; width: auto; max-width: 100%; object-fit: contain; }
.brand-grid .bi span { font-size: 13px; color: var(--text-2); text-align: center; }
.article-kw {
  margin: 0 0 24px;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text-2);
  background: var(--vellum);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius);
}
.article-kw a { font-weight: 600; }
@media (max-width: 1199px) {
  .brand-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .kw-strip { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 768px) {
  .brand-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kw-strip { padding: 20px; gap: 16px; }
  .kw-strip .kw-ico { width: 56px; height: 56px; }
  .kw-strip h2 { font-size: 19px; }
}

/* ---------- 滚动淡入 ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--ease-out), transform .6s var(--ease-out); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: .08s; }
.reveal-d2 { transition-delay: .16s; }
.reveal-d3 { transition-delay: .24s; }
.reveal-d4 { transition-delay: .32s; }
.reveal-d5 { transition-delay: .40s; }

/* ---------- 图文并排 ---------- */
.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 48px; align-items: center; }
.split img { border-radius: var(--radius); border: 1px solid var(--line-soft); }
.figure-cap { margin-top: 12px; font-size: 13px; color: var(--text-3); text-align: center; }

/* ---------- 品牌背书 ---------- */
.quote-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.quote {
  display: flex;
  flex-direction: column;
  padding: 32px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.quote:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(52, 112, 255, .55); }
.quote::before { content: "\201C"; display: block; font-family: Georgia, serif; font-size: 44px; line-height: .8; color: var(--primary); margin-bottom: 8px; }
.quote p { font-size: 15px; color: var(--text-2); }
.quote-person { display: flex; align-items: center; gap: 12px; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line-soft); }
.quote-person img { width: 48px; height: 48px; border-radius: var(--radius); object-fit: cover; }
.quote-person b { display: block; font-size: 15px; color: var(--slate-900); }
.quote-person span { display: block; font-size: 13px; color: var(--text-3); }

/* ---------- 信任条 ---------- */
.logo-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.logo-strip .ls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 24px 16px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.logo-strip .ls:hover { transform: translateY(-3px); border-color: var(--primary); }
.logo-strip .ls img { height: 28px; width: auto; }
.logo-strip .ls span { font-size: 13px; color: var(--text-2); }

/* ---------- 体验板块（桌面显示 / 移动隐藏） ---------- */
.experience { display: none; }
.exp-grid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: 32px; align-items: start; }
.exp-phones { display: flex; gap: 20px; justify-content: center; }
.exp-phones .phone-wrap { max-width: 230px; }
.exp-form { padding: 28px; background: #FFFFFF; border: 1px solid var(--line-soft); border-radius: var(--radius); box-shadow: var(--shadow-hover); }
.exp-form h3 { font-size: 18px; margin-bottom: 6px; }
.field { margin-bottom: 16px; }
.field label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 500; color: var(--slate-900); }
.field input[type="text"] {
  width: 100%;
  height: 46px;
  padding: 0 14px;
  font-family: inherit;
  font-size: 15px;
  color: var(--slate-900);
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .3s var(--ease);
}
.field input[type="text"]::placeholder { color: var(--text-3); }
.field input[type="text"]:focus { border-color: var(--primary); outline: none; }
.field input[readonly] { background: var(--vellum); color: var(--text-2); font-size: 13px; }
.file-row { display: flex; gap: 10px; }
.file-row input[readonly] { flex: 1; min-width: 0; }
.file-row .btn { flex: none; }
.hidden-input { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); border: 0; }
.is-hidden { display: none !important; }
.hidden { display: none !important; }
@media (min-width: 769px) {
  .experience { display: block; }
}

/* ---------- 文章正文 ---------- */
.article { max-width: 860px; }
.article-body { font-size: 16px; line-height: 1.85; color: var(--text); }
.article-body h2 { margin: 36px 0 14px; font-size: 24px; }
.article-body h3 { margin: 28px 0 12px; font-size: 19px; }
.article-body ul, .article-body ol { margin: 0 0 18px; padding-left: 0; }
.article-body ul li { position: relative; padding: 6px 0 6px 22px; }
.article-body ul li::before { content: ""; position: absolute; left: 4px; top: 17px; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
.article-body ol { counter-reset: ol; }
.article-body ol li { position: relative; padding: 6px 0 6px 30px; }
.article-body ol li::before { counter-increment: ol; content: counter(ol) "."; position: absolute; left: 0; top: 6px; font-family: var(--font-num); color: var(--primary); font-weight: 600; }
.article-body blockquote {
  margin: 0 0 18px;
  padding: 16px 20px;
  font-size: 15px;
  color: var(--text-2);
  background: var(--vellum);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius);
}
.article-body table { width: 100%; min-width: 560px; border-collapse: collapse; margin: 0 0 18px; }
.article-body th, .article-body td { padding: 12px 14px; font-size: 14px; text-align: left; border: 1px solid var(--line-soft); }
.article-body th { background: var(--vellum); color: var(--slate-900); font-weight: 600; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 24px; font-size: 14px; color: var(--text-3); }
.article-meta time { font-family: var(--font-num); }
.article-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--line-soft); }
.article-tags strong { font-size: 14px; color: var(--text-2); }

/* ---------- 杂项 ---------- */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-40 { margin-bottom: 40px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-40 { margin-top: 40px; }
.text-center { text-align: center; }
.note { padding: 16px 20px; font-size: 14px; color: var(--text-2); background: var(--vellum); border: 1px solid var(--line-soft); border-radius: var(--radius); }
.note b { color: var(--slate-900); }
.sec-dark .note { color: #A9B5C6; background: rgba(255, 255, 255, .04); border-color: rgba(255, 255, 255, .10); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* ---------- 平板端 769-1199px ---------- */
@media (max-width: 1199px) {
  :root { --gutter: 24px; --sec-y: 64px; }
  .nav-inner { gap: 16px; }
  .nav-links a { padding: 8px 10px; font-size: 14px; }
  .nav-tel span { display: none; }
  .grid { gap: 20px; }
  .g4, .stat-row, .steps, .logo-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .g3, .quote-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .layout-main { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .ad-sticky { position: static; }
  .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
  .hero { padding: 64px 0 72px; }
  .hero-grid { gap: 32px; }
  .exp-grid { grid-template-columns: minmax(0, 1fr); }
  .flow { flex-wrap: wrap; gap: 16px; }
  .flow-arrow { display: none; }
  .flow-node { flex: 1 1 calc(50% - 16px); }
  .ind-track { grid-auto-columns: calc((100% - 48px) / 3); }
  .proto { flex-wrap: wrap; gap: 28px 24px; }
  .proto-arrow { display: none; }
  .proto-step { flex: 1 1 calc(50% - 12px); }
}

/* ---------- 移动端 ≤768px ---------- */
@media (max-width: 768px) {
  :root { --gutter: 16px; --sec-y: 48px; --nav-h: 64px; }
  body { font-size: 15px; }
  h1 { font-size: 28px; }
  h2 { font-size: 22px; }
  h3 { font-size: 19px; }
  .nav-links, .nav-tel { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .nav-side { margin-left: auto; }
  .nav-side .btn { display: none; }
  .sec-head { margin-bottom: 28px; }
  .sec-sub { font-size: 15px; }
  .g2, .g3, .g4, .stat-row, .steps, .logo-strip, .quote-grid, .compare, .split { grid-template-columns: minmax(0, 1fr); }
  .grid { gap: 16px; }
  .card, .list-item, .step, .quote, .compare-col, .exp-form { padding: 20px; }
  .hero { padding: 44px 0 52px; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .hero-lede { font-size: 15px; }
  .btn-row .btn { width: 100%; }
  .phones { flex-wrap: wrap; gap: 16px; }
  .phone-wrap { max-width: none; flex: 1 1 calc(50% - 8px); }
  .phone-wrap:nth-child(3) { flex: 1 1 100%; }
  .phone-screen { min-height: 260px; }
  .experience { display: none; }
  .ind-track { grid-auto-columns: calc((100% - 14px) / 1.2); gap: 14px; }
  .ind-nav { display: none; }
  .ind-card img { height: 150px; }
  .proto { gap: 28px 0; }
  .proto-step { flex: 1 1 100%; }
  .post-nav .pn { flex: 1 1 100%; max-width: 100%; }
  .post-nav .pn.next { text-align: left; }
  .foot-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .foot-bottom { flex-direction: column; }
  .float-consult { right: 12px; gap: 10px; }
  .fc-btn { width: 46px; height: 46px; }
  .fc-btn svg { width: 21px; height: 21px; }
  .fc-tip, .fc-qr { display: none; }
  .page-hero { padding: 28px 0 26px; }
  .table-wrap { margin: 0 -16px; padding: 0 16px; }
  .flow { gap: 12px; }
  .flow-node { flex: 1 1 100%; }
  .timeline { padding-left: 24px; }
  .tl-item::before { left: -22px; width: 12px; height: 12px; }
  .list-item { padding: 20px; }
  .list-item h2, .list-item h3 { font-size: 18px; }
  .article-body h2 { font-size: 20px; }
  .hero-points { gap: 12px 20px; }
  .hero-points li { font-size: 14px; }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}