/* ==========================================================================
 *  style.css — 广州市超仁信息技术服务有限公司 企业网站
 *  主题：浅色（默认） + 彩色暗黑系列（data-theme="dark"）
 * ========================================================================== */

/* ----------------------------- 设计变量 ----------------------------- */
:root {
  /* 浅色主题 */
  --bg: #f5f8fc;
  --bg-grad-1: #e8f4ff;
  --bg-grad-2: #f0e9ff;
  --surface: #ffffff;
  --surface-2: #f7faff;
  --text: #0f1b2d;
  --text-soft: #51607a;
  --primary: #0a7bd1;
  --primary-2: #7b2ff7;
  --primary-soft: rgba(10, 123, 209, 0.10);
  --accent: #00b4d8;
  --border: #e3e9f2;
  --border-strong: #cdd8e8;
  --shadow-sm: 0 2px 10px rgba(15, 27, 45, 0.06);
  --shadow-md: 0 12px 30px rgba(15, 27, 45, 0.10);
  --shadow-lg: 0 24px 60px rgba(15, 27, 45, 0.14);
  --radius: 16px;
  --radius-lg: 24px;
  --header-bg: rgba(255, 255, 255, 0.82);
  --header-solid: #ffffff;
  --glow: none;
  --maxw: min(1760px, 94vw);
}

[data-theme="dark"] {
  /* 彩色暗黑系列 */
  --bg: #0b1020;
  --bg-grad-1: #0a1a33;
  --bg-grad-2: #1a0b35;
  --surface: #141d3a;
  --surface-2: #101733;
  --text: #eaf1ff;
  --text-soft: #9fb0d6;
  --primary: #00e0ff;
  --primary-2: #a855f7;
  --primary-soft: rgba(0, 224, 255, 0.14);
  --accent: #2dd4bf;
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.18);
  --shadow-sm: 0 2px 14px rgba(0, 0, 0, 0.45);
  --shadow-md: 0 16px 40px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 30px 70px rgba(0, 0, 0, 0.60);
  --header-bg: rgba(11, 16, 32, 0.78);
  --header-solid: #0b1020;
  --glow: 0 0 28px rgba(0, 224, 255, 0.35);
}

/* ----------------------------- 重置 ----------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
section[id], div[id] { scroll-margin-top: 84px; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  transition: background-color .3s ease, color .3s ease;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 { margin: 0; line-height: 1.2; font-weight: 800; letter-spacing: .2px; }
p { margin: 0; }
ul { list-style: none; margin: 0; padding: 0; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* 滚动进度条 */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
  z-index: 1000; transition: width .15s ease;
}

/* ----------------------------- 顶部导航 ----------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 900;
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 16px; height: 68px; max-width: none; padding-left: clamp(16px, 3vw, 44px); padding-right: clamp(16px, 3vw, 44px); }
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; margin-right: auto; }
.brand-logo { display: inline-flex; filter: drop-shadow(0 4px 10px rgba(0,0,0,.2)); }
.brand-logo img { display: block; border-radius: 10px; object-fit: cover; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; min-width: 0; }
.brand-text strong { font-size: 14.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand-text em { font-size: 11px; font-style: normal; color: var(--text-soft); letter-spacing: .5px; white-space: nowrap; }

.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 8px 14px; border-radius: 10px; font-size: 14.5px; font-weight: 600;
  color: var(--text-soft); transition: color .2s, background .2s, box-shadow .2s;
}
.main-nav a:hover { color: var(--text); background: var(--primary-soft); }
.main-nav a.active {
  color: var(--primary);
  font-weight: 800;
}
/* 一级下拉菜单 */
.nav-sub { position: relative; display: flex; }
.nav-sub > a::after {
  content: ""; display: inline-block; width: 7px; height: 7px; margin-left: 6px;
  border-right: 2px solid currentColor; border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px); opacity: .55; transition: transform .2s;
}
.nav-sub:hover > a::after, .nav-sub.open > a::after { transform: rotate(225deg) translateY(-1px); }
.nav-sub.cur > a {
  color: var(--primary);
  font-weight: 800;
}
.submenu {
  position: absolute; top: calc(100% + 8px); left: 50%;
  min-width: 300px; padding: 6px; margin: 0; list-style: none;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  box-shadow: 0 18px 40px -14px rgba(10, 40, 80, .28);
  opacity: 0; visibility: hidden; pointer-events: none;
  transform: translateX(-50%); transition: opacity .15s, visibility .15s;
  z-index: 80;
}
/* 桥接区：覆盖一级菜单与下拉之间的空隙，鼠标滑过不中断 hover */
.submenu::before {
  content: ""; position: absolute; top: -10px; left: 0; right: 0; height: 10px;
}
.nav-sub:hover > .submenu, .nav-sub:focus-within > .submenu, .nav-sub.open > .submenu {
  opacity: 1; visibility: visible; pointer-events: auto;
}
.submenu a {
  display: block; padding: 10px 14px; border-radius: 9px;
  font-size: 13.5px; font-weight: 600; color: var(--text-soft);
  white-space: nowrap; transition: color .15s, background .15s;
}
.submenu a:hover { color: var(--primary); background: var(--primary-soft); }
.submenu a.cur { color: var(--primary); background: var(--primary-soft); font-weight: 800; }
.submenu a::after { content: none; }
/* 独立业务详情页翻页条 */
.biz-pager { border-top: 1px solid var(--border); background: var(--surface-2); }
.pager-inner { display: flex; justify-content: space-between; gap: 16px; padding: 22px clamp(16px, 3vw, 44px); }
.pager-link { display: flex; flex-direction: column; gap: 4px; padding: 14px 18px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--surface); transition: border-color .2s, transform .2s, box-shadow .2s; }
.pager-link:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 10px 24px -14px rgba(10,40,80,.35); }
.pager-link.next { text-align: right; margin-left: auto; }
.pager-dir { font-size: 12px; color: var(--text-soft); }
.pager-link strong { font-size: 14.5px; color: var(--text); }
.header-tools { display: flex; align-items: center; gap: 10px; margin-left: 10px; }
.header-selects { display: flex; align-items: center; gap: 8px; }
.header-select {
  appearance: none; -webkit-appearance: none;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px;
  color: var(--text); font-size: 13px; font-weight: 600; font-family: inherit;
  padding: 7px 28px 7px 12px; cursor: pointer; transition: border-color .2s, color .2s;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-soft) 50%), linear-gradient(135deg, var(--text-soft) 50%, transparent 50%);
  background-position: calc(100% - 16px) 55%, calc(100% - 11px) 55%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.header-select:hover { border-color: var(--primary); color: var(--primary); }
.header-select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.header-select option { background: var(--surface); color: var(--text); font-weight: 500; }

/* 头部图标按钮（语言/主题循环切换）：无边框无底色，纯图标/文字高亮 */
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 4px;
  min-width: 32px; height: 32px; padding: 0 4px;
  background: transparent; border: none; border-radius: 8px;
  color: var(--text); font-size: 13px; font-weight: 700; font-family: inherit;
  cursor: pointer; transition: color .2s, transform .15s;
}
.icon-btn:hover { color: var(--primary); }
.icon-btn:active { transform: scale(.94); }
.icon-btn .theme-icon { display: inline-flex; font-size: 18px; line-height: 1; color: var(--text-soft); }
.icon-btn:hover .theme-icon { color: var(--primary); }
.icon-btn .lang-short { font-size: 13.5px; font-weight: 800; letter-spacing: .3px; }

.menu-btn { display: none; flex-direction: column; gap: 4px; width: 40px; height: 40px;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; align-items: center; justify-content: center; }
.menu-btn span { width: 18px; height: 2px; background: var(--text); border-radius: 2px; transition: .25s; }
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ----------------------------- Hero ----------------------------- */
.hero { position: relative; overflow: hidden; padding: 96px 0 84px; }
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(60% 60% at 15% 20%, var(--bg-grad-1), transparent 70%),
    radial-gradient(55% 55% at 85% 15%, var(--bg-grad-2), transparent 70%),
    var(--bg);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(120,140,180,.12) 1px, transparent 1px);
  background-size: 26px 26px; opacity: .5;
}
[data-theme="dark"] .hero-bg::after { background-image: radial-gradient(rgba(120,180,255,.16) 1px, transparent 1px); }
.hero-inner { position: relative; z-index: 1; max-width: none; text-align: center; }
.hero-badge {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .5px;
  padding: 7px 14px; border-radius: 999px; color: var(--primary);
  background: var(--primary-soft); border: 1px solid var(--border); margin-bottom: 22px;
}
.hero-title { font-size: clamp(30px, 5.2vw, 56px); font-weight: 900; margin-bottom: 20px; }
.grad-text {
  background: linear-gradient(120deg, var(--primary), var(--primary-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { font-size: clamp(15px, 2vw, 18px); color: var(--text-soft); max-width: none; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 48px; justify-content: center; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 12px; font-weight: 700; font-size: 15px;
  border: 1px solid transparent; transition: transform .15s, box-shadow .2s, filter .2s;
}
.btn-primary { color: #fff; background: linear-gradient(120deg, var(--primary), var(--primary-2)); box-shadow: var(--glow); }
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-2px); }
.btn-ghost { color: var(--text); background: var(--surface); border-color: var(--border-strong); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-block { width: 100%; }

.hero-stats { display: flex; flex-wrap: wrap; gap: 40px; justify-content: center; }
.hero-stats .stat { display: flex; flex-direction: column; align-items: center; }
.hero-stats strong { font-size: clamp(26px, 3.5vw, 38px); font-weight: 900;
  background: linear-gradient(120deg, var(--primary), var(--primary-2));
  -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-stats span { font-size: 13.5px; color: var(--text-soft); margin-top: 4px; }

/* ----------------------------- 首页轮播 ----------------------------- */
.carousel {
  position: relative; overflow: hidden; height: clamp(218px, 35.36vw, 679px);
  background: var(--surface-2); border-bottom: 1px solid var(--border);
}
.carousel-track { position: relative; width: 100%; height: 100%; }
.car-slide {
  position: absolute; inset: 0; opacity: 0; transition: opacity .7s ease;
}
.car-slide.active { opacity: 1; z-index: 1; }
.car-slide img { width: 100%; height: 100%; object-fit: cover; }
.car-slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(5,12,28,.05) 40%, rgba(5,12,28,.55));
}
/* 轮播左侧文字层 */
.car-caption {
  position: absolute; left: 0; top: 0; bottom: 0; z-index: 2;
  width: min(62%, 960px);
  display: flex; flex-direction: column; justify-content: center; align-items: flex-start;
  gap: 14px; padding: 0 24px 0 clamp(28px, 8.3vw, 140px);
  background: linear-gradient(90deg, rgba(4, 10, 26, .78) 60%, rgba(4, 10, 26, 0));
}
.car-caption h3 {
  margin: 0; font-size: clamp(15px, 4.34vw, 66px); font-weight: 900;
  line-height: 1.18; white-space: nowrap;
  background: linear-gradient(92deg, #ffffff 0%, #cfe4ff 38%, #6ec2ff 68%, #8f7bff 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  filter: drop-shadow(0 3px 14px rgba(0, 10, 30, .55));
}
.car-caption p {
  margin: 0; font-size: clamp(11px, 2.04vw, 28px);
  font-weight: 500; letter-spacing: .5px; white-space: nowrap;
  background: linear-gradient(92deg, #eaf3ff 0%, #9fd8ff 55%, #b9a8ff 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  filter: drop-shadow(0 2px 10px rgba(0, 10, 30, .5));
}
.car-more {
  display: inline-flex; align-items: center; justify-content: center;
  margin-top: 6px; padding: 8px 31px; border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), #7c5cff); color: #fff;
  font-size: clamp(10px, 1vw, 14.5px); font-weight: 700; letter-spacing: 1px; text-decoration: none;
  box-shadow: 0 3px 10px rgba(45, 110, 255, .3); transition: transform .18s, box-shadow .18s, filter .18s;
}
.car-more:hover { transform: translateY(-2px); filter: brightness(1.08); box-shadow: 0 8px 20px rgba(45, 110, 255, .45); }
/* 服务流程四步卡片 */
.proc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.proc-card {
  position: relative; overflow: hidden;
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 26px 22px 24px; transition: transform .2s, border-color .2s, box-shadow .2s;
}
.proc-card:hover { transform: translateY(-4px); border-color: var(--primary); box-shadow: 0 12px 28px rgba(0,0,0,.18); }
.proc-num {
  display: block; font-size: 40px; font-weight: 900; line-height: 1; margin-bottom: 14px;
  background: linear-gradient(120deg, var(--primary), #7c5cff);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent; opacity: .9;
}
.proc-card h4 { margin: 0 0 8px; font-size: 17px; font-weight: 800; color: var(--text); }
.proc-card p { margin: 0; font-size: 13.5px; line-height: 1.7; color: var(--text-soft); }
@media (max-width: 980px) { .proc-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .proc-grid { grid-template-columns: 1fr; } }

.car-btn {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,.35); background: rgba(10, 20, 44, .35);
  color: #fff; font-size: 26px; line-height: 1; display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(6px); transition: background .2s;
}
.car-btn:hover { background: rgba(10, 20, 44, .6); }
.car-btn.prev { left: 18px; }
.car-btn.next { right: 18px; }
.car-dots {
  position: absolute; bottom: 16px; left: 0; right: 0; z-index: 3;
  display: flex; justify-content: center; gap: 9px;
}
.car-dots button {
  width: 10px; height: 10px; border-radius: 50%; border: none; padding: 0;
  background: rgba(255,255,255,.45); transition: all .25s;
}
.car-dots button.active { background: #fff; width: 26px; border-radius: 6px; }

/* ----------------------------- 通用区块 ----------------------------- */
.section { padding: 78px 0; }
.section-alt { background: var(--surface-2); }
.section-head { text-align: center; margin-bottom: 46px; }
.section-head.left { text-align: left; margin-bottom: 26px; }
.section-head h2 { font-size: clamp(24px, 3.4vw, 36px); position: relative; display: inline-block; padding-bottom: 14px; }
.section-head h2::after {
  content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 56px; height: 4px; border-radius: 4px; background: linear-gradient(90deg, var(--primary), var(--primary-2));
}
.section-head.left h2::after { left: 0; transform: none; }
.section-sub { color: var(--text-soft); margin-top: 12px; font-size: 15.5px; }

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

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 24px; box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s, border-color .25s;
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-2)); opacity: 0; transition: opacity .25s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.card:hover::before { opacity: 1; }

.card-icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary-soft), var(--primary-soft));
  border: 1px solid var(--border); margin-bottom: 16px; color: var(--primary);
  box-shadow: var(--glow);
}
.card-icon svg { width: 26px; height: 26px; }

/* 核心业务：图片垫底 + 文字悬浮卡片 */
.card.mv { padding: 0; min-height: 260px; display: flex; align-items: flex-end; border: none; text-decoration: none; cursor: pointer; }
.card.mv::before { display: none; }
.card.mv .card-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.card.mv:hover .card-bg { transform: scale(1.04); }
.card.mv .card-shade {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(5, 12, 28, .16) 0%, rgba(5, 12, 28, .5) 45%, rgba(5, 12, 28, .9) 100%);
  transition: background .25s;
}
.card.mv .card-body { position: relative; z-index: 1; padding: 24px 26px; color: #fff; }
.card.mv .card-body h3 { color: #fff; font-size: 19px; font-weight: 800; margin: 0 0 10px; letter-spacing: .5px; }
.card.mv .card-body p { color: rgba(255, 255, 255, .88); font-size: 14px; line-height: 1.85; margin: 0; text-align: justify; }
.card.mv .tags { margin-top: 14px; }
.card.mv .tags span {
  background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .3);
  color: #fff; backdrop-filter: blur(4px);
}
@media (max-width: 860px) { .card.mv { min-height: 220px; } }
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p { color: var(--text-soft); font-size: 14.5px; }
.card .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.card .tags span {
  font-size: 12px; color: var(--primary); background: var(--primary-soft);
  padding: 4px 10px; border-radius: 999px; font-weight: 600;
}
.card .points { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.card .points li { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-soft); }
.card .points li::before { content: "✓"; color: var(--primary); font-weight: 800; }

/* ----------------------------- 关于我们 ----------------------------- */
.about-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.about-text p { color: var(--text-soft); margin-bottom: 16px; font-size: 15.5px; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.feature {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s;
}
.feature:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.feature .card-icon { width: 44px; height: 44px; margin-bottom: 12px; }
.feature .card-icon svg { width: 22px; height: 22px; }
.feature h4 { font-size: 16px; margin-bottom: 6px; }
.feature p { font-size: 13.5px; color: var(--text-soft); }

/* ----------------------------- 产品/租赁 ----------------------------- */
.block-title { font-size: 19px; margin: 8px 0 18px; padding-left: 12px; border-left: 4px solid var(--primary); }
.card-grid + .block-title { margin-top: 40px; }
.product-cta { text-align: center; margin-top: 36px; }

/* ----------------------------- 联系我们 ----------------------------- */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 40px; align-items: start; }
.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field-full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; font-weight: 700; color: var(--text-soft); }
.field input, .field select, .field textarea {
  font-family: inherit; font-size: 14.5px; color: var(--text);
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 10px;
  padding: 12px 14px; transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft);
}
.field textarea { resize: vertical; }
.form-msg { font-size: 14px; margin-top: 10px; min-height: 20px; }
.form-msg.ok { color: #16a34a; }
.form-msg.err { color: #dc2626; }

.contact-info {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow-sm);
}
.contact-info h3 { font-size: 18px; margin-bottom: 18px; }
.contact-info ul { display: flex; flex-direction: column; gap: 16px; }
.contact-info li { display: flex; flex-direction: column; gap: 3px; padding-bottom: 14px; border-bottom: 1px dashed var(--border); }
.contact-info li:last-child { border-bottom: none; padding-bottom: 0; }
.ci-label { font-size: 12.5px; color: var(--text-soft); font-weight: 600; }
.contact-info a:hover { color: var(--primary); }

/* ----------------------------- 页脚 ----------------------------- */
.site-footer { background: var(--surface-2); border-top: 1px solid var(--border); padding: 54px 0 26px; }
.footer-grid { display: flex; justify-content: space-between; align-items: flex-start; gap: 48px; }
.footer-about { flex: 0 1 480px; min-width: 260px; }
.footer-biz { flex: 0 1 auto; min-width: 0; }
.footer-col h4 { font-size: 18px; margin-bottom: 14px; }
.footer-about strong { display: block; font-size: 18px; margin-bottom: 10px; }
.footer-about p { color: var(--text-soft); font-size: 14px; line-height: 2; margin-top: 6px; }
.footer-col a, .footer-col span { display: block; color: var(--text-soft); font-size: 14px; margin-bottom: 9px; transition: color .2s; }
.footer-col a:hover { color: var(--primary); }
/* 页脚「七大核心业务」三分组 */
.footer-biz-groups { display: flex; justify-content: space-between; gap: 80px; }
.footer-biz-groups > div { flex: 0 0 auto; }
.footer-biz-groups strong { display: block; font-size: 18px; font-weight: 700; margin-bottom: 10px; white-space: nowrap; }
.footer-biz-groups strong a { color: var(--text); font-size: 18px; }
.footer-biz-groups > div > a { font-size: 14px; margin-bottom: 8px; line-height: 1.9; white-space: nowrap; }
.footer-biz-groups > div > a { display: block; }
.footer-contact { text-align: left; }
.footer-contact a { word-break: break-all; }
@media (max-width: 1320px) {
  /* 中等宽度：简介+联系一行，业务分组整行铺开避免挤压折行 */
  .footer-grid { flex-wrap: wrap; row-gap: 34px; }
  .footer-about { flex: 1 1 320px; }
  .footer-contact { flex: 0 0 auto; }
  .footer-biz { flex: 1 1 100%; }
  .footer-biz-groups { gap: 42px; }
  .footer-biz-groups strong { white-space: normal; }
  .footer-biz-groups a { white-space: normal; }
}
.footer-bottom {
  max-width: var(--maxw); margin: 34px auto 0; padding: 18px 20px 0; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  color: var(--text-soft); font-size: 12.5px;
}

/* ----------------------------- 入场动画 ----------------------------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ----------------------------- 无障碍 ----------------------------- */
:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; border-radius: 6px; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ----------------------------- 响应式 ----------------------------- */
@media (max-width: 1560px) {
  .main-nav a { padding: 8px 9px; font-size: 13px; }
  .submenu a { font-size: 12.5px; }
  .header-select { padding: 6px 24px 6px 10px; font-size: 12px; }
}
@media (max-width: 980px) {
  .card-grid-3, .card-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { flex-direction: column; gap: 30px; }
  .footer-contact { text-align: left; }
  .footer-biz-groups { flex-wrap: wrap; }
  .footer-biz-groups > div { flex: 1 1 220px; }
  .footer-biz-groups a { white-space: normal; }
}
@media (max-width: 760px) {
  .menu-btn { display: flex; }
  .main-nav {
    position: fixed; left: 0; right: 0; top: 68px;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: var(--header-solid); backdrop-filter: none;
    padding: 12px 20px 20px; border-bottom: 1px solid var(--border);
    box-shadow: 0 18px 40px rgba(0, 0, 0, .35);
    max-height: calc(100vh - 68px); overflow-y: auto;
    transform: translateY(-120%); opacity: 0; pointer-events: none; transition: .3s;
  }
  .main-nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .main-nav a { padding: 12px 14px; }
  /* 移动端下拉：点按展开，静态嵌入面板 */
  .nav-sub { flex-direction: column; }
  .nav-sub > a { display: flex; align-items: center; justify-content: space-between; }
  .submenu {
    position: static; transform: none; min-width: 0; width: 100%;
    box-shadow: none; border: none; background: transparent; padding: 0 0 0 14px;
    display: none; opacity: 1; visibility: visible; pointer-events: auto;
  }
  .nav-sub.open > .submenu { display: block; }
  .submenu a { white-space: normal; padding: 10px 12px; font-size: 13.5px; }
  .header-tools { margin-left: auto; }
  .brand-text em { display: none; }
  .subhero.has-gallery .subhero-inner { padding: 0 44px; }
  .hero { padding: 64px 0 56px; }
  .hero-stats { gap: 26px; }
}
@media (max-width: 860px) {
  .detail-media { grid-template-columns: 1fr 1fr; }
  .car-caption {
    width: 100%; align-items: center; text-align: center; gap: 6px;
    justify-content: flex-end; padding: 0 42px 46px;
    background: linear-gradient(180deg, rgba(4,10,26,0) 35%, rgba(4,10,26,.85));
  }
  .car-caption h3 { font-size: 16px; }
  .car-caption p { font-size: 10px; }
  .car-more { padding: 7px 24px; font-size: 12.5px; margin-top: 2px; }
}
@media (max-width: 560px) {
  .card-grid, .card-grid-3, .card-grid-4 { grid-template-columns: 1fr; }
  .contact-form { grid-template-columns: 1fr; }
  .footer-biz-groups { flex-direction: column; gap: 14px; }
  .header-select { max-width: 108px; padding: 7px 24px 7px 9px; font-size: 12px; }
  .car-btn { width: 36px; height: 36px; font-size: 20px; }
  .photo-grid { grid-template-columns: 1fr; }
  .detail-media { grid-template-columns: 1fr; gap: 12px; }
}

/* ============================ 子页 Hero ============================ */
.subhero { position: relative; overflow: hidden; padding: 72px 0 56px; border-bottom: 1px solid var(--border); }
.subhero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(55% 70% at 82% 8%, var(--bg-grad-2), transparent 70%),
    radial-gradient(55% 70% at 8% 0%, var(--bg-grad-1), transparent 70%),
    var(--bg);
}
.subhero-inner { position: relative; z-index: 1; }
.breadcrumb { display: none; }
.subhero h1 { font-size: clamp(28px, 4.2vw, 44px); }
.subhero p { color: var(--text-soft); margin-top: 14px; font-size: clamp(15px, 2vw, 17px); }

/* 子页 hero：与首页同款的整幅通栏图片轮播，文字叠加在图上 */
.subhero.has-gallery { color: #fff; padding: 96px 0 88px; }
.subhero.has-gallery .subhero-bg { display: none; }
.subhero-track { position: absolute; inset: 0; z-index: 0; }
.subhero-track .car-slide { position: absolute; inset: 0; opacity: 0; transition: opacity .7s ease; }
.subhero-track .car-slide.active { opacity: 1; z-index: 1; }
.subhero-track .car-slide img { width: 100%; height: 100%; object-fit: cover; }
.subhero-track .car-slide::after { display: none; } /* 避免与通栏遮罩叠加过暗 */
.subhero-track::after {
  content: ""; position: absolute; inset: 0; z-index: 2;
  background: linear-gradient(90deg, rgba(5, 12, 28, .78) 0%, rgba(5, 12, 28, .45) 52%, rgba(5, 12, 28, .28) 100%);
}
.subhero.has-gallery .subhero-inner { z-index: 3; }
.subhero.has-gallery h1 { color: #fff; text-shadow: 0 2px 14px rgba(0, 0, 0, .35); }
.subhero.has-gallery p { color: rgba(255, 255, 255, .88); max-width: 760px; text-shadow: 0 1px 8px rgba(0, 0, 0, .4); }
@media (max-width: 980px) {
  .subhero.has-gallery { padding: 72px 0 76px; }
  .subhero-track::after { background: linear-gradient(180deg, rgba(5, 12, 28, .55) 0%, rgba(5, 12, 28, .72) 100%); }
}

/* ============================ 详情业务块 ============================ */
.detail { padding: 58px 0; }
.detail.alt { background: var(--surface-2); }
.detail-head { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 8px; }
.detail-head .card-icon { margin-bottom: 0; flex: 0 0 auto; }
.detail-head h2 { font-size: clamp(22px, 3vw, 30px); }
.detail-head .lead { color: var(--text-soft); margin-top: 10px; font-size: 15.5px; }

/* 详情页产品图（核心业务：一行三张实拍图；智能方案：单张大图） */
.detail-media {
  margin: 26px 0 6px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.detail-media img {
  display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover;
  border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--surface-2);
  box-shadow: 0 14px 30px -18px rgba(10, 40, 80, .5);
}

/* 关于我们 — 公司实景图墙 */
.photo-grid {
  display: grid; gap: 22px; grid-template-columns: repeat(3, 1fr); margin-top: 36px;
}
.photo-card {
  margin: 0; border-radius: var(--radius-lg); overflow: hidden; position: relative;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm); background: var(--surface);
  transition: transform .25s, box-shadow .25s;
}
.photo-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.photo-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; }
.photo-card figcaption {
  padding: 13px 16px; font-size: 14px; font-weight: 700; color: var(--text);
  background: var(--surface); border-top: 1px solid var(--border); text-align: center;
}

/* 产品卡片顶部插画 */
.card-media {
  margin: -27px -25px 18px; aspect-ratio: 16 / 9; overflow: hidden;
  background: linear-gradient(135deg, #0ea5c4, #7b2ff7);
}
.card-media img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.card:hover .card-media img { transform: scale(1.05); }

.block-label {
  display: inline-flex; align-items: center; gap: 8px; margin: 30px 0 16px;
  font-size: 15px; font-weight: 800; letter-spacing: .6px; color: var(--primary); text-transform: uppercase;
}

/* 业务流程时间线（卡片式） */
.process { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.process.step5 { grid-template-columns: repeat(5, 1fr); }
.pstep { position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 18px; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s; }
.pstep:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.pstep .num { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-weight: 800; color: #fff; background: linear-gradient(120deg, var(--primary), var(--primary-2)); margin-bottom: 12px; box-shadow: var(--glow); }
.pstep h4 { font-size: 15.5px; margin-bottom: 6px; }
.pstep p { font-size: 13.5px; color: var(--text-soft); }

/* 优势 / 能力 小卡 */
.mini-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.mini-grid.grid4 { grid-template-columns: repeat(4, 1fr); }
.mini { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; box-shadow: var(--shadow-sm); }
.mini h4 { font-size: 14.5px; margin-bottom: 4px; }
.mini p { font-size: 13px; color: var(--text-soft); }

/* 场景 / 标签 */
.scene-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.scene-tags span { font-size: 12.5px; padding: 5px 12px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); font-weight: 600; }

/* ============================ 关于我们 ============================ */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 8px; }
.value-grid.cols2 { grid-template-columns: repeat(2, 1fr); gap: 22px; }
.value-grid.cols2 .mv-card { min-height: 320px; }
.timeline { position: relative; margin-top: 22px; }

/* 发展历程：趋势线图 */
.ms-chart { position: relative; height: 560px; margin-top: 20px; }
.ms-svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.ms-svg path { stroke-width: 3; }
.ms-dot { position: absolute; transform: translate(-50%, -50%); z-index: 2; }
.ms-dot span { display: block; width: 18px; height: 18px; border-radius: 50%; background: var(--surface); border: 4px solid var(--primary); box-shadow: 0 0 0 5px color-mix(in srgb, var(--primary) 16%, transparent); }
.ms-card { position: absolute; width: 220px; transform: translateX(-50%); z-index: 3; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; box-shadow: 0 8px 22px rgba(10, 37, 64, .10); }
.ms-card.below { margin-top: 26px; }
.ms-card.above { margin-top: -26px; transform: translate(-50%, -100%); }
.ms-year { display: inline-block; font-size: 17px; font-weight: 800; color: var(--primary); letter-spacing: .5px; }
.ms-card h4 { font-size: 15px; margin: 4px 0 6px; }
.ms-card p { font-size: 13px; line-height: 1.8; color: var(--text-soft); margin: 0; text-align: justify; }
@media (max-width: 1200px) { .ms-card { width: 180px; } }
@media (max-width: 860px) {
  .ms-chart { height: auto; padding-left: 26px; }
  .ms-svg, .ms-dot { display: none; }
  .ms-chart::before { content: ""; position: absolute; left: 8px; top: 4px; bottom: 4px; width: 3px; border-radius: 2px; background: linear-gradient(var(--primary), var(--primary-2)); }
  .ms-card { position: relative !important; left: 0 !important; top: 0 !important; width: auto; transform: none !important; margin: 0 0 16px; }
  .ms-card::before { content: ""; position: absolute; left: -24px; top: 20px; width: 13px; height: 13px; border-radius: 50%; background: var(--surface); border: 3px solid var(--primary); }
}
.timeline::before { content: ""; position: absolute; left: 11px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--primary), var(--primary-2)); }
.tl-item { position: relative; padding: 0 0 22px 40px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before { content: ""; position: absolute; left: 4px; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 0 4px var(--primary-soft); }
.tl-item .year { font-weight: 800; color: var(--primary); font-size: 15px; }
.tl-item h4 { font-size: 15.5px; margin: 2px 0 4px; }
.tl-item p { font-size: 13.5px; color: var(--text-soft); }

/* ============================ CTA 横幅 ============================ */
.cta-band { text-align: center; padding: 48px 24px; border-radius: var(--radius-lg); margin: 44px 0;
  background: linear-gradient(120deg, var(--primary), var(--primary-2)); color: #fff; box-shadow: var(--glow); }
.cta-band h2 { color: #fff; font-size: clamp(22px, 3vw, 30px); }
.cta-band p { opacity: .92; margin: 10px auto 22px; max-width: 960px; }
.cta-band .btn-ghost { background: rgba(255,255,255,.16); color: #fff; border-color: rgba(255,255,255,.45); }
.cta-band .btn-ghost:hover { background: rgba(255,255,255,.28); color: #fff; }

/* 子页区块标题（左对齐通用） */
.page-section { padding: 56px 0; }
.page-section.alt { background: var(--surface-2); }
.section-lead { color: var(--text-soft); max-width: none; margin: 10px 0 0; }

/* 关于页：企业使命/愿景 —— 图片压底、文字悬浮 */
.mv-card { position: relative; border-radius: 16px; overflow: hidden; min-height: 340px; display: flex; align-items: flex-end; box-shadow: 0 12px 32px rgba(10, 37, 64, .14); }
.mv-card .mv-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.mv-card .mv-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(5, 12, 28, .18) 0%, rgba(5, 12, 28, .55) 45%, rgba(5, 12, 28, .88) 100%); }
.mv-card .mv-content { position: relative; z-index: 1; padding: 28px 30px; color: #fff; }
.mv-card .mv-content h4 { font-size: 19px; margin-bottom: 12px; color: #fff; letter-spacing: .5px; }
.mv-card .mv-content p { color: rgba(255, 255, 255, .9); font-size: 14.5px; line-height: 1.95; margin: 0; text-align: justify; }
@media (max-width: 860px) {
  .mv-card { min-height: 280px; }
  .mv-card .mv-content { padding: 22px 20px; }
}

/* 首页「为什么选择超仁」四列窄卡，降低高度 */
#whyGrid .mv-card { min-height: 260px; }
#whyGrid .mv-card .mv-content { padding: 20px 22px; }
#whyGrid .mv-card .mv-content h4 { font-size: 17px; margin-bottom: 8px; }
#whyGrid .mv-card .mv-content p { font-size: 13.5px; line-height: 1.75; }

/* ============================ 响应式（新增版块） ============================ */
@media (max-width: 860px) {
  .process, .process.step5 { grid-template-columns: repeat(2, 1fr); }
  .mini-grid, .value-grid { grid-template-columns: 1fr 1fr; }
  .two-col { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .process, .process.step5 { grid-template-columns: 1fr; }
  .mini-grid, .value-grid { grid-template-columns: 1fr; }
}