/* ============================================================
   苏州福恩达信息技术有限公司 · 官网样式
   设计语言：深靛蓝 × 鎏金 · 庄重大气 · 现代简约
   ============================================================ */

/* ---------- 设计令牌 ---------- */
:root {
  --navy-900: #081527;
  --navy-800: #0c1f38;
  --navy-700: #122c4e;
  --navy-600: #1a3a63;
  --navy-500: #27496f;
  --gold-600: #a5844a;
  --gold-500: #c2a05c;
  --gold-400: #d4b678;
  --gold-300: #e8d5a4;
  --ink-900: #1c2430;
  --ink-700: #37404e;
  --ink-600: #4a5568;
  --ink-400: #8a94a3;
  --paper: #f7f4ec;
  --paper-2: #efe9db;
  --white: #ffffff;
  --line: #e7e1d2;
  --line-gold: #e5d5ac;
  --shadow-sm: 0 2px 10px rgba(12, 31, 56, .06);
  --shadow-md: 0 10px 30px rgba(12, 31, 56, .10);
  --shadow-lg: 0 24px 60px rgba(12, 31, 56, .16);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STZhongsong", "SimSun", serif;
  --font-sans: "MiSans", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
  --radius: 18px;
  --radius-sm: 12px;
  --container: 1200px;
  --header-h: 76px;
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color .25s; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; background: none; border: 0; }
em, i { font-style: normal; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 28px; }

.skip-link {
  position: fixed; left: -999px; top: 12px; z-index: 999;
  background: var(--gold-500); color: #fff; padding: 8px 18px; border-radius: 8px;
}
.skip-link:focus { left: 12px; }

::selection { background: var(--gold-300); color: var(--navy-900); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 32px; border-radius: 999px;
  font-size: 15px; font-weight: 600; letter-spacing: 2px; line-height: 1.4;
  transition: transform .3s, box-shadow .3s, background .3s, border-color .3s, color .3s;
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }
.btn-lg { padding: 16px 42px; font-size: 16px; }
.btn-block { width: 100%; }
.btn-gold {
  background: linear-gradient(135deg, #e2c489 0%, #c2a05c 60%, #ab8748 100%);
  color: #241a08;
  box-shadow: 0 12px 32px rgba(194, 160, 92, .38);
}
.btn-gold:hover { transform: translateY(-3px); box-shadow: 0 18px 42px rgba(194, 160, 92, .5); color: #241a08; }
.btn-ghost { border: 1px solid rgba(232, 213, 164, .55); color: var(--gold-300); }
.btn-ghost:hover { background: rgba(232, 213, 164, .12); transform: translateY(-3px); }
.btn-navy { background: linear-gradient(135deg, var(--navy-700), var(--navy-900)); color: #fff; box-shadow: 0 12px 30px rgba(12, 31, 56, .28); }
.btn-navy:hover { transform: translateY(-3px); box-shadow: 0 18px 40px rgba(12, 31, 56, .4); color: #fff; }
.btn-outline { border: 1.5px solid var(--navy-700); color: var(--navy-700); }
.btn-outline:hover { background: var(--navy-700); color: #fff; transform: translateY(-3px); }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: linear-gradient(180deg, rgba(8, 21, 39, .55), rgba(8, 21, 39, 0));
  transition: background .35s, box-shadow .35s, backdrop-filter .35s;
}
.site-header.is-solid {
  background: rgba(9, 22, 41, .94);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  box-shadow: 0 10px 34px rgba(4, 10, 20, .4);
  border-bottom: 1px solid rgba(232, 213, 164, .14);
}
.header-inner { display: flex; align-items: center; gap: 34px; height: var(--header-h); }

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-svg { width: 40px; height: 40px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name {
  font-family: var(--font-serif); font-size: 23px; font-weight: 700;
  color: #fff; letter-spacing: 3px;
}
.brand-sub { font-size: 10.5px; color: var(--gold-300); letter-spacing: 2.5px; margin-top: 3px; }

.site-nav { display: flex; gap: 30px; margin-left: auto; }
.site-nav a {
  position: relative; color: rgba(255, 255, 255, .82);
  font-size: 15px; letter-spacing: 1.5px; padding: 6px 2px;
}
.site-nav a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 2px;
  background: linear-gradient(90deg, var(--gold-300), var(--gold-500));
  transition: right .32s cubic-bezier(.22, .7, .3, 1);
}
.site-nav a:hover { color: #fff; }
.site-nav a:hover::after, .site-nav a.active::after { right: 0; }
.site-nav a.active { color: var(--gold-300); }

.header-side { display: flex; align-items: center; gap: 18px; flex-shrink: 0; }
.header-wx {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 5px 8px; margin-left: -8px;
  background: none; border: none; cursor: pointer; text-align: left;
  color: var(--gold-300); font-size: 15px; font-weight: 600; letter-spacing: 1px;
  transition: color .3s;
}
.header-wx svg { width: 24px; height: 24px; flex-shrink: 0; }
.header-wx:hover { color: #fff; }
.header-wx-text { display: flex; flex-direction: column; line-height: 1.3; }
.wx-main { font-size: 14px; letter-spacing: .5px; }
.wx-main b { font-weight: 700; font-size: 14.5px; letter-spacing: 1px; }
.wx-sub { font-size: 11px; font-weight: 500; color: rgba(232, 213, 164, .78); letter-spacing: 2px; margin-top: 2px; }
.header-cta {
  padding: 9px 24px; border-radius: 999px;
  background: linear-gradient(135deg, #e2c489, #b28c4e);
  color: #241a08; font-size: 13.5px; font-weight: 700; letter-spacing: 2px;
  box-shadow: 0 8px 20px rgba(194, 160, 92, .35);
}
.header-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(194, 160, 92, .48); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--gold-300); border-radius: 2px; transition: .3s; }

/* 移动端抽屉导航 */
.drawer-mask {
  position: fixed; inset: 0; z-index: 110; background: rgba(4, 10, 20, .6);
  opacity: 0; transition: opacity .3s;
}
.drawer-mask.show { opacity: 1; }
.nav-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 120;
  width: min(82vw, 380px); padding: 96px 34px 34px;
  background: linear-gradient(175deg, var(--navy-800) 0%, var(--navy-900) 100%);
  transform: translateX(102%); transition: transform .38s cubic-bezier(.22, .7, .3, 1);
  display: flex; flex-direction: column;
  box-shadow: -24px 0 60px rgba(4, 10, 20, .5);
}
.nav-drawer.open { transform: none; }
.nav-drawer nav { display: flex; flex-direction: column; }
.nav-drawer nav a {
  font-family: var(--font-serif); font-size: 19px; letter-spacing: 4px;
  color: rgba(255, 255, 255, .8); padding: 15px 4px;
  border-bottom: 1px solid rgba(232, 213, 164, .12);
}
.nav-drawer nav a.active, .nav-drawer nav a:hover { color: var(--gold-300); }
.drawer-foot { margin-top: auto; text-align: center; }
.drawer-phone { font-family: var(--font-serif); font-size: 26px; color: var(--gold-300); letter-spacing: 1px; }
.drawer-note { font-size: 12.5px; color: rgba(255, 255, 255, .55); margin: 4px 0 20px; }
.drawer-wx { display: block; width: 100%; padding: 14px 10px; background: none; border: none; cursor: pointer; }
.drawer-wx:hover .drawer-phone { color: #fff; }

/* ---------- 微信复制提示浮层 ---------- */
.wx-toast {
  position: fixed; left: 50%; bottom: 42px; z-index: 200;
  transform: translate(-50%, 16px); opacity: 0; pointer-events: none;
  max-width: calc(100vw - 40px);
  padding: 13px 26px; border-radius: 999px;
  background: rgba(9, 22, 41, .96); color: var(--gold-300);
  border: 1px solid rgba(232, 213, 164, .32);
  font-size: 14px; letter-spacing: 1px; line-height: 1.6; text-align: center;
  box-shadow: 0 14px 40px rgba(4, 10, 20, .45);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  transition: opacity .3s, transform .3s;
}
.wx-toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  min-height: 94vh; display: flex; align-items: center;
  padding: calc(var(--header-h) + 70px) 0 90px;
  color: #fff;
  background:
    radial-gradient(1100px 560px at 88% -12%, rgba(212, 182, 120, .20), transparent 62%),
    radial-gradient(880px 520px at -8% 112%, rgba(26, 58, 99, .55), transparent 60%),
    linear-gradient(158deg, #102643 0%, #0c1f38 48%, #081527 100%);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-arcs { position: absolute; left: 0; right: 0; bottom: -30px; width: 100%; height: 300px; }
.hero-lotus { position: absolute; right: -110px; bottom: -60px; width: 480px; height: 480px; opacity: .1; }
.hero-lotus svg { width: 100%; height: 100%; }

.hero-inner { position: relative; text-align: center; max-width: 900px; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 16px;
  color: var(--gold-300); font-size: 13.5px; letter-spacing: 5px; margin-bottom: 30px;
}
.hero-eyebrow::before, .hero-eyebrow::after {
  content: ""; width: 44px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-400));
}
.hero-eyebrow::after { background: linear-gradient(90deg, var(--gold-400), transparent); }
.hero-title {
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(38px, 6.4vw, 68px);
  line-height: 1.28; letter-spacing: 8px;
  text-shadow: 0 10px 40px rgba(4, 10, 20, .45);
}
.hero-title em {
  background: linear-gradient(115deg, #f2e3b6 8%, var(--gold-400) 45%, #c9a15e 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
  margin: 28px auto 0; max-width: 640px;
  font-size: clamp(14.5px, 1.6vw, 17px); line-height: 2.1;
  color: rgba(255, 255, 255, .72); letter-spacing: 1.5px;
}
.hero-actions { margin-top: 44px; display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }

.hero-stats {
  margin-top: 72px;
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: rgba(255, 255, 255, .055);
  border: 1px solid rgba(232, 213, 164, .22);
  border-radius: 22px;
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  overflow: hidden;
}
.hstat { padding: 26px 12px; text-align: center; position: relative; }
.hstat + .hstat::before {
  content: ""; position: absolute; left: 0; top: 24%; bottom: 24%; width: 1px;
  background: linear-gradient(180deg, transparent, rgba(232, 213, 164, .35), transparent);
}
.hstat-num {
  font-family: var(--font-serif); font-size: clamp(26px, 3vw, 36px); font-weight: 700;
  color: var(--gold-300); letter-spacing: 1px;
}
.hstat-num i { font-style: normal; }
.hstat-num i::after { content: "+"; }
.hstat-label { display: block; margin-top: 4px; font-size: 13px; color: rgba(255, 255, 255, .62); letter-spacing: 3px; }

/* ---------- 区块通用 ---------- */
.section { padding: 104px 0; }
.section--paper { background: linear-gradient(180deg, var(--paper) 0%, #faf8f2 100%); }
.section--dark {
  background:
    radial-gradient(760px 420px at 92% 8%, rgba(212, 182, 120, .14), transparent 60%),
    linear-gradient(160deg, var(--navy-800), var(--navy-900));
  color: #fff;
}
.sec-head { text-align: center; max-width: 760px; margin: 0 auto 60px; }
.eyebrow {
  color: var(--gold-600); font-size: 12px; font-weight: 700;
  letter-spacing: 7px; margin-bottom: 14px;
}
.sec-title {
  font-family: var(--font-serif); font-weight: 700; color: var(--navy-900);
  font-size: clamp(28px, 3.4vw, 40px); letter-spacing: 4px; line-height: 1.4;
}
.sec-sub { margin-top: 16px; font-size: 15.5px; color: var(--ink-400); letter-spacing: 1px; }
.sec-head--dark .sec-title { color: #fff; }
.sec-head--dark .sec-sub { color: rgba(255, 255, 255, .62); }
.sec-head--dark .eyebrow { color: var(--gold-400); }
.sec-foot { text-align: center; margin-top: 56px; }

/* ---------- 产品卡片 ---------- */
.p-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(285px, 1fr)); gap: 26px; }
.p-card {
  position: relative; display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px 24px; overflow: hidden;
  transition: transform .38s cubic-bezier(.22, .7, .3, 1), box-shadow .38s, border-color .38s;
}
.p-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold-300), var(--gold-500), transparent);
  opacity: 0; transition: opacity .38s;
}
.p-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: var(--line-gold); }
.p-card:hover::before { opacity: 1; }
.p-card--hot { background: linear-gradient(150deg, #fdf8ec 0%, #f6eeda 100%); border-color: #e8d9b0; }
.p-badge {
  position: absolute; top: 16px; right: -30px; transform: rotate(38deg);
  background: linear-gradient(135deg, #e2c489, #b28c4e); color: #241a08;
  font-size: 11px; font-weight: 700; letter-spacing: 2px;
  padding: 4px 34px; box-shadow: 0 6px 14px rgba(178, 140, 78, .4);
}
.p-icon {
  width: 54px; height: 54px; border-radius: 15px;
  display: grid; place-items: center; color: #fff; margin-bottom: 20px;
  box-shadow: 0 10px 22px rgba(12, 31, 56, .18);
  flex-shrink: 0;
}
.p-icon svg { width: 27px; height: 27px; }
.p-icon--lg { width: 86px; height: 86px; border-radius: 22px; }
.p-icon--lg svg { width: 42px; height: 42px; }
.p-icon--sm { width: 40px; height: 40px; border-radius: 11px; margin: 0; }
.p-icon--sm svg { width: 20px; height: 20px; }
.p-name { font-family: var(--font-serif); font-size: 19px; font-weight: 700; color: var(--ink-900); letter-spacing: 1.5px; }
.p-desc {
  margin-top: 10px; font-size: 13.5px; line-height: 1.8; color: var(--ink-400);
  letter-spacing: .5px; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.p-more {
  margin-top: 18px; font-size: 13px; font-weight: 600; color: var(--gold-600); letter-spacing: 2px;
}
.p-more i { display: inline-block; margin-left: 7px; transition: transform .3s; font-style: normal; }
.p-card:hover .p-more i { transform: translateX(5px); }

/* 15 组产品图标配色（庄重色系） */
.hue-1  { background: linear-gradient(135deg, #dcb96f, #ab8748); }
.hue-2  { background: linear-gradient(135deg, #31659e, #1d4076); }
.hue-3  { background: linear-gradient(135deg, #5a74a8, #3a5185); }
.hue-4  { background: linear-gradient(135deg, #bd6154, #93413a); }
.hue-5  { background: linear-gradient(135deg, #529f7e, #33775a); }
.hue-6  { background: linear-gradient(135deg, #a98a52, #82633a); }
.hue-7  { background: linear-gradient(135deg, #cd9352, #a56b35); }
.hue-8  { background: linear-gradient(135deg, #8574ba, #5c4d94); }
.hue-9  { background: linear-gradient(135deg, #4d82a8, #33607f); }
.hue-10 { background: linear-gradient(135deg, #42826f, #2a5c50); }
.hue-11 { background: linear-gradient(135deg, #4f5eab, #364484); }
.hue-12 { background: linear-gradient(135deg, #b5705f, #8f4f43); }
.hue-13 { background: linear-gradient(135deg, #4298a8, #2d7482); }
.hue-14 { background: linear-gradient(135deg, #a76380, #7f4560); }
.hue-15 { background: linear-gradient(135deg, #32738f, #1f5470); }
.hue-16 { background: linear-gradient(135deg, #64748f, #3f4c66); }

/* ---------- 产品中心分类 ---------- */
.cat-block { margin-bottom: 66px; }
.cat-block:last-of-type { margin-bottom: 0; }
.cat-head { display: flex; align-items: baseline; gap: 20px; margin-bottom: 30px; }
.cat-name { font-family: var(--font-serif); font-size: 24px; font-weight: 700; color: var(--navy-900); letter-spacing: 3px; flex-shrink: 0; }
.cat-line { flex: 1; height: 1px; background: linear-gradient(90deg, var(--gold-400), transparent); align-self: center; }
.cat-desc { font-size: 13.5px; color: var(--ink-400); letter-spacing: 1px; flex-shrink: 0; }
.free-strip {
  margin-top: 70px; padding: 30px 38px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  background: linear-gradient(120deg, #0f2340, #0c1f38);
  border-radius: var(--radius); box-shadow: var(--shadow-md);
  color: #fff; flex-wrap: wrap;
}
.free-strip strong { display: block; font-family: var(--font-serif); font-size: 20px; letter-spacing: 2px; color: var(--gold-300); }
.free-strip span { display: block; margin-top: 6px; font-size: 13.5px; color: rgba(255, 255, 255, .65); letter-spacing: 1px; }

/* ---------- 解决方案（首页卡片） ---------- */
.sol-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.sol-card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 34px 30px;
  transition: transform .38s, box-shadow .38s, border-color .38s;
  display: flex; flex-direction: column;
}
.sol-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: var(--line-gold); }
.sol-card--lead { grid-column: span 2; background: linear-gradient(150deg, #f4f0e4, #fdfcf8); border-color: #e8ddc0; }
.sol-idx {
  font-family: var(--font-serif); font-size: 15px; font-weight: 700;
  color: var(--gold-500); letter-spacing: 2px; margin-bottom: 14px;
}
.sol-idx--lg { font-size: 40px; color: var(--gold-300); -webkit-text-stroke: 1px var(--gold-600); line-height: 1; margin-bottom: 22px; }
.sol-name { font-family: var(--font-serif); font-size: 21px; font-weight: 700; color: var(--navy-900); letter-spacing: 2px; }
.sol-tag { font-size: 10.5px; color: var(--gold-600); letter-spacing: 3px; margin: 6px 0 14px; font-weight: 700; }
.sol-desc { font-size: 14px; color: var(--ink-600); line-height: 1.95; letter-spacing: .4px; flex: 1; }
.sol-chips { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 22px; }
.sol-chips a {
  font-size: 12.5px; padding: 6px 15px; border-radius: 999px;
  border: 1px solid var(--line-gold); color: var(--navy-700); letter-spacing: 1px;
  transition: .28s;
}
.sol-chips a:hover { background: var(--navy-800); border-color: var(--navy-800); color: var(--gold-300); }
.sol-card--more { justify-content: center; align-items: flex-start; background: var(--navy-800); border-color: var(--navy-800); }
.sol-card--more .sol-name { color: #fff; }
.sol-card--more .sol-desc { color: rgba(255, 255, 255, .6); }
.sol-card--more .sol-idx { color: var(--gold-400); font-size: 26px; }
.sol-card--more:hover { background: var(--navy-700); border-color: var(--navy-700); }

/* ---------- 核心优势 ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.adv-card {
  padding: 34px 30px; border-radius: var(--radius);
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(232, 213, 164, .16);
  transition: background .35s, border-color .35s, transform .35s;
}
.adv-card:hover { background: rgba(255, 255, 255, .09); border-color: rgba(232, 213, 164, .4); transform: translateY(-5px); }
.adv-num {
  font-family: var(--font-serif); font-size: 30px; font-weight: 700;
  color: transparent; -webkit-text-stroke: 1px var(--gold-400);
  display: block; margin-bottom: 14px;
}
.adv-card h3 { font-family: var(--font-serif); font-size: 18.5px; color: var(--gold-300); letter-spacing: 2px; margin-bottom: 10px; }
.adv-card p { font-size: 13.8px; color: rgba(255, 255, 255, .68); line-height: 1.95; letter-spacing: .4px; }
.adv-grid--light { grid-template-columns: repeat(3, 1fr); }
.adv-card--light { background: #fff; border: 1px solid var(--line); }
.adv-card--light:hover { border-color: var(--line-gold); box-shadow: var(--shadow-md); background: #fff; }
.adv-card--light h3 { color: var(--navy-800); }
.adv-card--light p { color: var(--ink-600); }

/* ---------- CTA 呼吁条 ---------- */
.cta-section { padding-top: 0; }
.cta-band {
  position: relative; overflow: hidden; text-align: center;
  padding: 78px 40px 70px; border-radius: 26px;
  background:
    radial-gradient(620px 300px at 88% -10%, rgba(212, 182, 120, .22), transparent 60%),
    linear-gradient(155deg, #102643, #0c1f38 55%, #081527);
  box-shadow: var(--shadow-lg);
}
.cta-lotus { position: absolute; left: -70px; bottom: -90px; width: 320px; height: 320px; opacity: .08; }
.cta-eyebrow { color: var(--gold-300); font-size: 12.5px; letter-spacing: 5px; }
.cta-phone {
  display: inline-block; margin-top: 14px;
  font-family: var(--font-serif); font-weight: 700; letter-spacing: 3px;
  font-size: clamp(34px, 5vw, 54px);
  background: linear-gradient(115deg, #f2e3b6, var(--gold-400) 55%, #c9a15e);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.cta-phone:hover { filter: brightness(1.12); }
.cta-sub { margin-top: 12px; font-size: 14.5px; color: rgba(255, 255, 255, .65); letter-spacing: 1.5px; }
.cta-actions { margin-top: 36px; display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }

/* ---------- 内页 Hero ---------- */
.page-hero {
  position: relative; overflow: hidden;
  padding: calc(var(--header-h) + 74px) 0 72px;
  color: #fff; text-align: center;
  background:
    radial-gradient(760px 340px at 86% -20%, rgba(212, 182, 120, .18), transparent 60%),
    linear-gradient(158deg, #102643, #0c1f38 52%, #0a1a30);
}
.page-hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(232, 213, 164, .4), transparent);
}
.crumbs { font-size: 13px; color: rgba(255, 255, 255, .55); letter-spacing: 2px; margin-bottom: 20px; }
.crumbs a:hover { color: var(--gold-300); }
.crumbs i { margin: 0 10px; opacity: .5; }
.page-title {
  font-family: var(--font-serif); font-weight: 700;
  font-size: clamp(30px, 4vw, 44px); letter-spacing: 6px;
}
.page-sub { margin-top: 16px; font-size: 15px; color: rgba(255, 255, 255, .66); letter-spacing: 2px; }

/* 产品详情 Hero */
.page-hero--product { text-align: left; }
.page-hero--product .crumbs { text-align: center; }
.product-hero { display: flex; align-items: center; gap: 34px; margin-top: 26px; flex-wrap: wrap; }
.product-hero-text { flex: 1; min-width: 260px; }
.product-badges { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
.pb {
  font-size: 12.5px; font-weight: 700; letter-spacing: 2px;
  padding: 6px 18px; border-radius: 999px;
}
.pb-cat { background: rgba(255, 255, 255, .1); border: 1px solid rgba(232, 213, 164, .4); color: var(--gold-300); }
.pb-hot { background: linear-gradient(135deg, #e2c489, #b28c4e); color: #241a08; }

/* ---------- 产品详情正文 ---------- */
.product-body { max-width: 1080px; }
.block-title {
  font-family: var(--font-serif); font-size: 26px; font-weight: 700;
  color: var(--navy-900); letter-spacing: 4px; margin-bottom: 24px;
  display: flex; align-items: center; gap: 16px;
}
.block-title::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, var(--gold-400), transparent); }
.product-overview { margin-bottom: 72px; }
.lead { font-size: 16.5px; line-height: 2.15; color: var(--ink-600); letter-spacing: .6px; text-align: justify; }
.product-section { margin-bottom: 76px; }
.product-section--paper {
  background: var(--paper); border-radius: var(--radius);
  padding: 44px 44px 38px; margin-left: -44px; margin-right: -44px;
}
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 26px 24px 22px;
  transition: transform .32s, box-shadow .32s, border-color .32s;
}
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--line-gold); }
.f-idx {
  font-family: var(--font-serif); font-size: 26px; font-weight: 700;
  color: var(--gold-500); opacity: .85; display: block; margin-bottom: 8px;
}
.f-title { font-size: 16.5px; font-weight: 700; color: var(--ink-900); letter-spacing: 1.5px; margin-bottom: 8px; }
.f-desc { font-size: 13.6px; color: var(--ink-600); line-height: 1.95; letter-spacing: .3px; }

/* ---------- 系统界面截图（已烙水印，禁止保存/放大） ---------- */
.shot-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.shot-card {
  display: block; overflow: hidden; margin: 0;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: #fff; box-shadow: var(--shadow-sm);
  transition: transform .32s, box-shadow .32s, border-color .32s;
  -webkit-user-select: none; user-select: none;
  -webkit-touch-callout: none; -moz-user-select: none; -ms-user-select: none;
}
.shot-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--line-gold); }
.shot-img {
  display: block; width: 100%; aspect-ratio: 16 / 9;
  background-size: cover; background-position: center; background-color: #0c1f38;
  pointer-events: none; -webkit-user-drag: none;
}
.shot-cap {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; font-size: 13px; letter-spacing: 2px; color: var(--ink-600);
}
.shot-cap i { font-style: normal; font-size: 11.5px; color: var(--ink-400); letter-spacing: 1.5px; }

.flow-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.flow-step {
  text-align: center; padding: 26px 10px 20px;
  background: var(--paper); border-radius: var(--radius-sm);
}
.flow-dot {
  display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, #e2c489, #b28c4e); color: #241a08;
  font-family: var(--font-serif); font-weight: 700; font-size: 17px;
  box-shadow: 0 8px 18px rgba(178, 140, 78, .35);
}
.flow-step h3 { margin-top: 12px; font-size: 14.5px; font-weight: 700; color: var(--ink-900); letter-spacing: 1px; }
.flow-step p { margin-top: 6px; font-size: 12px; color: var(--ink-400); }

.scenario-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.scenario-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 26px 22px; text-align: center;
  transition: transform .32s, box-shadow .32s, border-color .32s;
}
.scenario-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--line-gold); }
.scenario-card h3 {
  font-family: var(--font-serif); font-size: 17px; font-weight: 700; color: var(--navy-800);
  letter-spacing: 2px; padding-bottom: 12px; margin-bottom: 12px; position: relative;
}
.scenario-card h3::after {
  content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 26px; height: 2px; background: var(--gold-400); border-radius: 2px;
}
.scenario-card p { font-size: 13px; color: var(--ink-600); line-height: 1.9; }

.product-cta {
  display: flex; align-items: center; justify-content: space-between; gap: 30px;
  padding: 44px 48px; border-radius: var(--radius);
  background: linear-gradient(120deg, #f4f0e4, #fdfcf8);
  border: 1px solid #e8ddc0; flex-wrap: wrap;
}
.product-cta h2 { font-family: var(--font-serif); font-size: 25px; color: var(--navy-900); letter-spacing: 2px; }
.product-cta p { margin-top: 8px; font-size: 14px; color: var(--ink-400); letter-spacing: 1px; }
.product-cta-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- 解决方案（内页） ---------- */
.sol-detail {
  display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px;
  padding: 66px 0; align-items: center;
  border-bottom: 1px solid var(--line);
}
.sol-detail:last-of-type { border-bottom: 0; padding-bottom: 6px; }
.sol-detail--rev { direction: rtl; }
.sol-detail--rev > * { direction: ltr; }
.sol-detail-intro { padding-left: 8px; }
.sol-detail-products { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.sol-product {
  display: flex; flex-direction: column; gap: 8px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 22px 22px 18px;
  transition: transform .32s, box-shadow .32s, border-color .32s;
}
.sol-product:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--line-gold); }
.sol-product-name { font-family: var(--font-serif); font-size: 16.5px; font-weight: 700; color: var(--ink-900); letter-spacing: 1.5px; }
.sol-product-desc { font-size: 12.5px; color: var(--ink-400); line-height: 1.7; }
.sol-detail .btn { margin-top: 26px; }

/* ---------- 关于我们 ---------- */
.about-intro { display: grid; grid-template-columns: 1.5fr 1fr; gap: 60px; align-items: start; }
.about-text p { margin-top: 18px; font-size: 15.5px; line-height: 2.15; color: var(--ink-600); letter-spacing: .5px; text-align: justify; }
.about-text .lead { margin-top: 0; }
.about-stats {
  display: grid; grid-template-columns: repeat(2, 1fr);
  background: linear-gradient(155deg, var(--navy-800), var(--navy-900));
  border-radius: var(--radius); padding: 40px 30px; gap: 30px 10px;
  box-shadow: var(--shadow-lg); text-align: center;
}
.astat span { font-family: var(--font-serif); font-size: 40px; font-weight: 700; color: var(--gold-300); }
.astat span i { font-style: normal; }
.astat span i::after { content: "+"; }
.astat em { display: block; margin-top: 2px; font-size: 13px; color: rgba(255, 255, 255, .6); letter-spacing: 3px; }

.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.value-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 40px 34px; text-align: center;
  transition: transform .35s, box-shadow .35s, border-color .35s;
}
.value-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--line-gold); }
.value-card h3 {
  font-size: 12.5px; font-weight: 700; letter-spacing: 6px; color: var(--gold-600);
  margin-bottom: 18px;
}
.value-big { font-family: var(--font-serif); font-size: 21px; font-weight: 700; color: var(--navy-900); letter-spacing: 2px; line-height: 1.6; }
.value-card > p:last-child { margin-top: 12px; font-size: 13.5px; color: var(--ink-400); letter-spacing: .5px; }

.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.tech-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 30px;
  transition: transform .35s, box-shadow .35s, border-color .35s;
}
.tech-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--line-gold); }
.tech-card h3 { font-family: var(--font-serif); font-size: 19px; color: var(--navy-900); letter-spacing: 2px; margin-bottom: 10px; }
.tech-card h3::before { content: ""; display: block; width: 34px; height: 3px; border-radius: 3px; background: linear-gradient(90deg, var(--gold-300), var(--gold-500)); margin-bottom: 16px; }
.tech-card p { font-size: 13.8px; color: var(--ink-600); line-height: 1.95; }

.timeline { max-width: 720px; margin: 0 auto; position: relative; padding-left: 34px; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(180deg, var(--gold-400), rgba(212, 182, 120, .15));
}
.tl-item { position: relative; padding: 0 0 46px 26px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -34px; top: 8px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--navy-800); border: 3px solid var(--gold-400);
}
.tl-year { font-family: var(--font-serif); font-size: 26px; font-weight: 700; color: var(--gold-300); letter-spacing: 2px; }
.tl-item h3 { margin-top: 6px; font-family: var(--font-serif); font-size: 18px; color: #fff; letter-spacing: 2px; }
.tl-item p { margin-top: 8px; font-size: 13.8px; color: rgba(255, 255, 255, .62); line-height: 1.95; max-width: 520px; }

/* ---------- 试用申请 ---------- */
.trial-wrap { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; align-items: start; max-width: 1120px; }
.trial-list li {
  display: flex; flex-direction: column; gap: 4px;
  padding: 20px 0 20px 34px; border-bottom: 1px dashed var(--line);
  position: relative;
}
.trial-list li::before {
  content: ""; position: absolute; left: 4px; top: 27px;
  width: 9px; height: 9px; border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-300), var(--gold-500));
}
.trial-list b { font-size: 16px; color: var(--ink-900); letter-spacing: 1.5px; }
.trial-list span { font-size: 13.5px; color: var(--ink-400); }
.trial-contact {
  margin-top: 34px; padding: 30px 32px;
  background: linear-gradient(155deg, var(--navy-800), var(--navy-900));
  border-radius: var(--radius); text-align: center; color: #fff;
}
.trial-contact p { font-size: 12.5px; letter-spacing: 4px; color: rgba(255, 255, 255, .55); }
.trial-contact a {
  display: block; margin-top: 8px;
  font-family: var(--font-serif); font-size: 32px; font-weight: 700; color: var(--gold-300); letter-spacing: 2px;
}
.trial-contact em { display: block; margin-top: 6px; font-size: 12px; color: rgba(255, 255, 255, .45); letter-spacing: 2px; }

.form-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 46px 44px 42px; box-shadow: var(--shadow-md);
}
.form-title { font-family: var(--font-serif); font-size: 24px; font-weight: 700; color: var(--navy-900); letter-spacing: 3px; }
.form-note { margin: 10px 0 26px; font-size: 13px; color: var(--ink-400); letter-spacing: .5px; }
.form-note em { color: #bd6154; font-style: normal; }
.form-error {
  margin-bottom: 22px; padding: 13px 18px;
  background: #fdeeec; border: 1px solid #f2c8c2; border-radius: var(--radius-sm);
  color: #93413a; font-size: 13.5px; letter-spacing: .5px;
}
.field { margin-bottom: 22px; }
.field label {
  display: block; margin-bottom: 8px;
  font-size: 13.5px; font-weight: 600; color: var(--ink-900); letter-spacing: 1.5px;
}
.field label em { color: #bd6154; font-style: normal; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 16px;
  border: 1.5px solid #ded8c8; border-radius: var(--radius-sm);
  background: #fcfbf7; font: inherit; font-size: 14.5px; color: var(--ink-900);
  transition: border-color .25s, box-shadow .25s, background .25s;
  letter-spacing: .5px;
}
.field textarea { resize: vertical; min-height: 104px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--gold-500); background: #fff;
  box-shadow: 0 0 0 4px rgba(194, 160, 92, .16);
}
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

.form-success { text-align: center; padding: 26px 6px 10px; }
.form-success-icon {
  display: inline-grid; place-items: center; width: 74px; height: 74px; border-radius: 50%;
  background: linear-gradient(135deg, #529f7e, #33775a); color: #fff;
  box-shadow: 0 14px 32px rgba(51, 119, 90, .35);
}
.form-success-icon svg { width: 34px; height: 34px; }
.form-success h2 { margin-top: 24px; font-family: var(--font-serif); font-size: 24px; color: var(--navy-900); letter-spacing: 2px; }
.form-success p { margin-top: 12px; font-size: 14.5px; color: var(--ink-400); }
.form-success-actions { margin-top: 32px; display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.contact-card {
  position: relative; display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 40px 36px 34px;
  transition: transform .35s, box-shadow .35s, border-color .35s;
}
.contact-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--line-gold); }
.contact-ic {
  display: inline-grid; place-items: center; width: 58px; height: 58px; border-radius: 16px;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-900)); color: var(--gold-300);
  margin-bottom: 22px;
}
.contact-ic svg { width: 27px; height: 27px; }
.contact-card h3 { font-size: 13px; font-weight: 700; letter-spacing: 4px; color: var(--gold-600); }
.contact-val { margin-top: 10px; font-family: var(--font-serif); font-size: 25px; font-weight: 700; color: var(--navy-900); letter-spacing: 1.5px; }
.contact-sub { margin-top: 8px; font-size: 13px; color: var(--ink-400); letter-spacing: .5px; }
.contact-go { margin-top: 18px; font-size: 13.5px; font-weight: 700; color: var(--gold-600); letter-spacing: 2px; }
.contact-card--info { background: var(--paper); grid-column: span 2; }
.contact-card--info:hover { box-shadow: none; transform: none; border-color: var(--line); }
button.contact-card { cursor: pointer; font: inherit; text-align: left; }

/* ---------- 申请记录表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; }
.app-table { width: 100%; border-collapse: collapse; font-size: 13.5px; min-width: 860px; }
.app-table th {
  background: var(--navy-800); color: var(--gold-300);
  font-weight: 600; letter-spacing: 2px; padding: 14px 16px; text-align: left; white-space: nowrap;
}
.app-table td { padding: 13px 16px; border-top: 1px solid var(--line); color: var(--ink-600); vertical-align: top; }
.app-table td a { color: var(--navy-700); font-weight: 600; }
.app-table td a:hover { color: var(--gold-600); }
.td-remark { max-width: 320px; }
.empty-tip { text-align: center; padding: 60px 0; color: var(--ink-400); letter-spacing: 2px; }

/* ---------- 404 ---------- */
.nf-section { min-height: 60vh; display: flex; align-items: center; padding-top: calc(var(--header-h) + 80px); }
.nf-inner { text-align: center; }
.nf-code {
  font-family: var(--font-serif); font-size: clamp(90px, 16vw, 150px); font-weight: 700; line-height: 1;
  color: transparent; -webkit-text-stroke: 2px var(--gold-500);
}
.nf-title { margin-top: 20px; font-family: var(--font-serif); font-size: 28px; color: var(--navy-900); letter-spacing: 4px; }
.nf-sub { margin-top: 14px; font-size: 14.5px; color: var(--ink-400); letter-spacing: 1px; }
.nf-actions { margin-top: 38px; display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; }

/* ---------- 页脚 ---------- */
.site-footer {
  background:
    radial-gradient(700px 320px at 90% 0%, rgba(212, 182, 120, .1), transparent 60%),
    var(--navy-900);
  color: rgba(255, 255, 255, .62);
}
.footer-grid {
  display: grid; grid-template-columns: 1.6fr .9fr .7fr 1.1fr;
  gap: 52px; padding: 76px 0 52px;
}
.footer-logo { display: flex; align-items: center; gap: 14px; }
.footer-logo .brand-svg { width: 44px; height: 44px; }
.footer-name { font-family: var(--font-serif); font-size: 23px; font-weight: 700; color: #fff; letter-spacing: 5px; }
.footer-slogan { margin-top: 4px; font-size: 11px; color: var(--gold-400); letter-spacing: 2.5px; }
.footer-intro { margin-top: 22px; font-size: 13px; line-height: 2; letter-spacing: .4px; color: rgba(255, 255, 255, .52); }
.footer-mission { margin-top: 14px; font-family: var(--font-serif); font-size: 15px; color: var(--gold-300); letter-spacing: 2px; }
.ft-title {
  font-size: 12.5px; font-weight: 700; letter-spacing: 5px; color: var(--gold-400);
  margin-bottom: 20px; padding-bottom: 12px; position: relative;
}
.ft-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 2px; background: var(--gold-500); border-radius: 2px; }
.footer-col a { display: block; padding: 5.5px 0; font-size: 13.5px; color: rgba(255, 255, 255, .55); letter-spacing: 1px; }
.footer-col a:hover { color: var(--gold-300); }
.ft-more { color: var(--gold-400) !important; font-weight: 600; }
.ft-line { display: flex; gap: 14px; padding: 6px 0; font-size: 13.5px; }
.ft-line span { flex-shrink: 0; color: rgba(255, 255, 255, .4); letter-spacing: 1px; }
.ft-line a { display: inline; padding: 0; color: var(--gold-300); font-weight: 600; }
.ft-line a:hover { color: #fff; }
.ft-line em { color: rgba(255, 255, 255, .55); }
.footer-bottom {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 24px 0 30px; font-size: 12.5px; color: rgba(255, 255, 255, .4); letter-spacing: 1px;
}
.footer-icp { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-icp a:hover { color: var(--gold-300); }

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed; right: 30px; bottom: 34px; z-index: 90;
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(12, 31, 56, .88); color: var(--gold-300);
  border: 1px solid rgba(232, 213, 164, .35);
  display: grid; place-items: center;
  opacity: 0; transform: translateY(16px); pointer-events: none;
  transition: opacity .3s, transform .3s, background .3s;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.back-top svg { width: 20px; height: 20px; }
.back-top.show { opacity: 1; transform: none; pointer-events: auto; }
.back-top:hover { background: var(--navy-700); }

/* ---------- 入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s ease, transform .8s cubic-bezier(.22, .7, .3, 1); }
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .1s; }
.reveal-d2 { transition-delay: .2s; }
.reveal-d3 { transition-delay: .3s; }
.reveal-d4 { transition-delay: .4s; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .site-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-wx-text { display: none; }
  .sol-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-card--lead { grid-column: span 2; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .shot-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-grid { grid-template-columns: repeat(3, 1fr); }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .adv-grid, .adv-grid--light { grid-template-columns: repeat(2, 1fr); }
  .value-grid, .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-detail { grid-template-columns: 1fr; gap: 30px; }
  .sol-detail--rev { direction: ltr; }
  .about-intro { grid-template-columns: 1fr; gap: 44px; }
  .trial-wrap { grid-template-columns: 1fr; gap: 44px; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .container { padding: 0 20px; }
  .section { padding: 72px 0; }
  .header-cta { display: none; }
  .brand-name { font-size: 20px; letter-spacing: 2px; }
  .brand-svg { width: 34px; height: 34px; }
  .hero { min-height: auto; padding: calc(var(--header-h) + 54px) 0 64px; }
  .hero-title { letter-spacing: 4px; }
  .hero-actions { gap: 14px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hstat { padding: 18px 8px; }
  .hstat:nth-child(3)::before { display: none; }
  .btn { padding: 12px 26px; font-size: 14px; letter-spacing: 1.5px; }
  .btn-lg { padding: 14px 32px; font-size: 15px; }
  .sec-head { margin-bottom: 42px; }
  .p-grid { grid-template-columns: 1fr; gap: 18px; }
  .sol-grid { grid-template-columns: 1fr; }
  .sol-card--lead { grid-column: auto; }
  .adv-grid, .adv-grid--light, .value-grid, .tech-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .shot-grid { grid-template-columns: 1fr; }
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
  .scenario-grid { grid-template-columns: 1fr; }
  .sol-detail-products { grid-template-columns: 1fr; }
  .product-hero { gap: 22px; }
  .p-icon--lg { width: 64px; height: 64px; border-radius: 16px; }
  .p-icon--lg svg { width: 31px; height: 31px; }
  .product-section--paper { padding: 30px 26px; margin-left: -26px; margin-right: -26px; }
  .product-cta { padding: 32px 28px; }
  .form-card { padding: 34px 26px 30px; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-card--info { grid-column: auto; }
  .contact-card { padding: 32px 26px 28px; }
  .free-strip { padding: 26px 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; padding: 56px 0 40px; }
  .footer-bottom { justify-content: center; text-align: center; }
  .cta-band { padding: 56px 24px 52px; }
  .cat-head { flex-wrap: wrap; gap: 10px 18px; }
  .cat-line { display: none; }
  .back-top { right: 18px; bottom: 22px; }
}

/* ---------- 动效减弱 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
}