/* ============================================================
   智慧物业官网 · 设计系统
   独立配色：品牌蓝 + 活力橙 + 深海军蓝页脚
   （与原站无任何样式复用，全部为全新编写）
   ============================================================ */

:root {
  --c-primary: #2456E6;
  --c-primary-d: #1B43B8;
  --c-primary-l: #EAF0FF;
  --c-accent: #FF7A1A;
  --c-accent-d: #E86A0A;
  --c-accent-l: #FFF1E6;
  --c-violet: #7B5CFF;
  --grad: linear-gradient(96deg, #2E6BFF 0%, #7B5CFF 100%);
  --grad-accent: linear-gradient(96deg, #FF8A2A 0%, #FF5C1A 100%);
  --c-ink: #10233F;
  --c-text: #51607A;
  --c-muted: #8A97AB;
  --c-bg: #F5F8FD;
  --c-line: #E4EAF5;
  --c-footer: #0B1B33;
  --c-footer-text: #93A5C4;
  --radius: 14px;
  --radius-s: 10px;
  --shadow: 0 10px 30px rgba(16, 35, 63, .08);
  --shadow-lg: 0 18px 50px rgba(16, 35, 63, .14);
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Segoe UI", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.75;
  background: #fff;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
.clear::after { content: ""; display: block; clear: both; }
.wrap { width: 1200px; margin: 0 auto; }
.tc { text-align: center; }
.ic { width: 24px; height: 24px; vertical-align: -5px; }

/* ---------- 通用标题 ---------- */
.sec-head { text-align: center; padding: 64px 0 38px; }
.sec-head .sec-ic { display: inline-block; width: 44px; height: 44px; border-radius: 12px; background: var(--grad); color: #fff; padding: 10px; margin-right: 12px; vertical-align: -12px; box-shadow: 0 8px 18px rgba(36, 86, 230, .25); }
.sec-head .sec-ic.alt { background: var(--grad-accent); box-shadow: 0 8px 18px rgba(255, 122, 26, .25); }
.sec-head h2 { font-size: 30px; color: var(--c-ink); font-weight: 700; display: inline-block; letter-spacing: 1px; }
.sec-head .sec-sub { margin-top: 10px; color: var(--c-muted); font-size: 15px; }
.sec-head.light h2 { color: #fff; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 28px; border-radius: 999px; font-size: 15px; font-weight: 600;
  cursor: pointer; border: 0; transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  user-select: none;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--grad-accent); color: #fff; box-shadow: 0 10px 22px rgba(255, 106, 20, .35); }
.btn-primary:hover { box-shadow: 0 14px 30px rgba(255, 106, 20, .45); transform: translateY(-2px); }
.btn-blue { background: var(--grad); color: #fff; box-shadow: 0 10px 22px rgba(36, 86, 230, .3); }
.btn-blue:hover { box-shadow: 0 14px 30px rgba(36, 86, 230, .4); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--c-primary); border: 1.5px solid var(--c-primary); }
.btn-ghost:hover { background: var(--c-primary-l); }
.btn-white { background: #fff; color: var(--c-primary); }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(0, 0, 0, .18); }
.btn-lg { padding: 14px 38px; font-size: 16px; }

/* ---------- 顶部导航 ---------- */
.nav-hold { height: 68px; }
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  background: rgba(255, 255, 255, .96); backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--c-line); transition: box-shadow .25s;
}
.nav.scrolled { box-shadow: 0 6px 24px rgba(16, 35, 63, .1); }
.nav-in { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo img { height: 40px; }
.nav-logo .logo-txt b { display: block; font-size: 17px; color: var(--c-ink); line-height: 1.2; }
.nav-logo .logo-txt span { font-size: 11px; color: var(--c-muted); letter-spacing: 1px; }
.nav-menu { display: flex; align-items: stretch; }
.nav-menu > li { position: relative; }
.nav-menu > li > a {
  display: flex; align-items: center; gap: 4px; padding: 0 18px; height: 68px;
  font-size: 16px; color: var(--c-ink); font-weight: 600; white-space: nowrap;
  transition: color .2s;
}
.nav-menu > li > a:hover, .nav-menu > li.on > a { color: var(--c-primary); }
.nav-menu .caret { width: 12px; height: 12px; transition: transform .2s; }
.nav-menu > li:hover .caret { transform: rotate(180deg); }
.nav-drop {
  position: absolute; top: 68px; left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 168px; background: #fff; border-radius: 12px; padding: 8px 0;
  box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden;
  transition: opacity .2s, transform .2s, visibility .2s;
}
.nav-menu > li:hover .nav-drop { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-drop a { display: flex; align-items: center; gap: 8px; padding: 9px 20px; font-size: 14.5px; color: var(--c-text); white-space: nowrap; }
.nav-drop a:hover { color: var(--c-primary); background: var(--c-primary-l); }
.nav-drop a .dot { width: 5px; height: 5px; border-radius: 50%; background: #C9D4EA; flex: none; }
.nav-drop a:hover .dot { background: var(--c-primary); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-login { position: relative; }
.nav-login > a { display: flex; align-items: center; gap: 4px; padding: 8px 20px; border: 1.5px solid var(--c-primary); border-radius: 999px; color: var(--c-primary); font-weight: 600; font-size: 14.5px; }
.nav-login .nav-drop { min-width: 120px; left: auto; right: 0; transform: translateY(8px); }
.nav-login:hover .nav-drop { transform: translateY(0); }
.nav-burger { display: none; background: none; border: 0; color: var(--c-ink); padding: 8px; cursor: pointer; }
.nav-m { display: none; }

/* ---------- 首页 Banner ---------- */
.banner { position: relative; height: 620px; overflow: hidden; background: var(--c-ink); }
.banner-slides { position: absolute; inset: 0; }
.b-slide { position: absolute; inset: 0; opacity: 0; transition: opacity .8s ease; }
.b-slide.on { opacity: 1; z-index: 2; }
.b-slide .b-bg { position: absolute; inset: 0; }
.b-slide.s1 .b-bg { background: radial-gradient(1200px 500px at 80% 20%, rgba(123, 92, 255, .5), transparent 60%), radial-gradient(900px 460px at 12% 90%, rgba(36, 86, 230, .55), transparent 60%), #0B1B33; }
.b-slide.s2 .b-bg { background: radial-gradient(1100px 520px at 18% 16%, rgba(255, 122, 26, .35), transparent 60%), radial-gradient(900px 480px at 85% 88%, rgba(36, 86, 230, .55), transparent 62%), #0B1B33; }
.b-slide.s3 .b-bg { background: radial-gradient(1100px 520px at 82% 78%, rgba(46, 107, 255, .6), transparent 62%), radial-gradient(800px 400px at 10% 12%, rgba(123, 92, 255, .5), transparent 60%), #0B1B33; }
.b-slide.s4 .b-bg { background: radial-gradient(1000px 500px at 20% 80%, rgba(255, 122, 26, .4), transparent 60%), radial-gradient(1000px 500px at 80% 18%, rgba(46, 107, 255, .6), transparent 62%), #0B1B33; }
.b-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px); background-size: 56px 56px; mask-image: radial-gradient(700px 500px at 50% 50%, #000 30%, transparent 75%); }
.b-in { position: relative; z-index: 3; height: 100%; display: flex; align-items: center; }
.b-txt { max-width: 620px; color: #fff; }
.b-txt .b-tag { display: inline-block; padding: 5px 16px; border-radius: 999px; background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .25); font-size: 13px; margin-bottom: 22px; letter-spacing: 2px; }
.b-txt h1 { font-size: 46px; line-height: 1.3; font-weight: 800; letter-spacing: 1px; }
.b-txt h1 em { font-style: normal; background: linear-gradient(90deg, #FFC36B, #FF8A2A); -webkit-background-clip: text; background-clip: text; color: transparent; }
.b-txt p { margin: 18px 0 30px; font-size: 16px; color: #C7D3EA; line-height: 1.9; }
.b-keys { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.b-keys span { padding: 7px 16px; border-radius: 8px; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18); font-size: 13.5px; color: #E8EEFB; }
.b-fig { position: absolute; right: 0; bottom: 0; top: 0; width: 46%; display: flex; align-items: center; justify-content: center; }
.b-phone { width: 270px; height: 540px; border-radius: 38px; background: linear-gradient(160deg, #1E3A8A, #0B1B33); border: 8px solid rgba(255, 255, 255, .14); box-shadow: 0 40px 80px rgba(0, 0, 0, .45); position: relative; overflow: hidden; }
.b-phone .ph-top { text-align: center; padding-top: 18px; color: #fff; font-size: 13px; letter-spacing: 1px; opacity: .85; }
.b-phone .ph-card { margin: 16px 14px 0; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .14); border-radius: 14px; padding: 14px; color: #fff; }
.b-phone .ph-card .ph-line { height: 9px; border-radius: 5px; background: rgba(255, 255, 255, .28); margin-bottom: 10px; }
.b-phone .ph-card .ph-line.w60 { width: 60%; }
.b-phone .ph-card .ph-line.w80 { width: 80%; background: rgba(255, 255, 255, .18); }
.b-phone .ph-btn { margin: 18px 14px 0; height: 42px; border-radius: 12px; background: var(--grad-accent); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 14px; font-weight: 600; }
.b-phone .ph-list { margin: 18px 14px 0; }
.b-phone .ph-item { display: flex; align-items: center; gap: 10px; background: rgba(255, 255, 255, .08); border-radius: 10px; padding: 10px 12px; margin-bottom: 10px; color: #fff; font-size: 13px; }
.b-phone .ph-item .ph-ic { width: 26px; height: 26px; border-radius: 8px; background: rgba(255, 255, 255, .2); flex: none; }
.b-dots { position: absolute; z-index: 5; bottom: 26px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; }
.b-dots i { width: 26px; height: 4px; border-radius: 2px; background: rgba(255, 255, 255, .3); cursor: pointer; transition: width .25s, background .25s; }
.b-dots i.on { width: 44px; background: var(--c-accent); }
.b-arrow { position: absolute; z-index: 5; top: 50%; transform: translateY(-50%); width: 46px; height: 46px; border-radius: 50%; background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .2); color: #fff; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: background .2s; }
.b-arrow:hover { background: rgba(255, 255, 255, .25); }
.b-arrow.prev { left: 24px; }
.b-arrow.next { right: 24px; }

/* ---------- 首页：功能网格 ---------- */
.feat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; padding-bottom: 60px; }
.feat-card {
  position: relative; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 26px 22px 22px; transition: transform .22s, box-shadow .22s, border-color .22s;
  overflow: hidden;
}
.feat-card::after { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px; background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .25s; }
.feat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feat-card:hover::after { transform: scaleX(1); }
.feat-card .f-ic { width: 52px; height: 52px; border-radius: 14px; background: var(--c-primary-l); color: var(--c-primary); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.feat-card .f-ic .ic { width: 27px; height: 27px; }
.feat-card h3 { font-size: 17.5px; color: var(--c-ink); margin-bottom: 8px; }
.feat-card p { font-size: 13.5px; color: var(--c-muted); line-height: 1.7; }
.feat-card .f-more { display: inline-flex; align-items: center; gap: 4px; margin-top: 12px; font-size: 13.5px; color: var(--c-primary); font-weight: 600; }
.feat-card .f-more .ic { width: 15px; height: 15px; }

/* ---------- 首页：智能硬件 Tab ---------- */
.sec-blue { background: linear-gradient(180deg, #0B1B33 0%, #102A4E 100%); }
.hw-tabs { display: flex; justify-content: center; gap: 10px; padding-bottom: 30px; flex-wrap: wrap; }
.hw-tab { padding: 9px 22px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, .22); color: #C7D3EA; font-size: 14.5px; cursor: pointer; transition: all .2s; }
.hw-tab:hover { color: #fff; border-color: rgba(255, 255, 255, .5); }
.hw-tab.on { background: var(--grad-accent); border-color: transparent; color: #fff; font-weight: 600; box-shadow: 0 8px 20px rgba(255, 106, 20, .35); }
.hw-pane { display: none; padding-bottom: 64px; }
.hw-pane.on { display: block; }
.hw-main { display: flex; gap: 40px; align-items: center; }
.hw-fig { flex: 1.1; background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .12); border-radius: 18px; padding: 30px; display: flex; justify-content: center; align-items: center; min-height: 300px; }
.hw-fig svg { max-width: 100%; height: auto; }
.hw-info { flex: 1; color: #fff; }
.hw-info h3 { font-size: 26px; margin-bottom: 10px; }
.hw-info .hw-desc { color: #A9BAD8; font-size: 14.5px; margin-bottom: 22px; }
.hw-feats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.hw-feats li { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; background: rgba(255, 255, 255, .06); border-radius: 10px; font-size: 13.5px; color: #DCE6F7; }
.hw-feats .ic { width: 20px; height: 20px; color: #FFA25C; flex: none; }
.hw-info .btn { margin-top: 24px; }

/* ---------- 首页：核心价值 ---------- */
.val-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-bottom: 22px; }
.val-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 26px 24px; transition: transform .2s, box-shadow .2s; }
.val-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.val-card .v-t { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.val-card .v-t .ic { width: 30px; height: 30px; color: var(--c-accent); }
.val-card .v-t h3 { font-size: 18px; color: var(--c-ink); }
.val-card li { position: relative; padding: 5px 0 5px 20px; font-size: 14px; color: var(--c-text); }
.val-card li::before { content: ""; position: absolute; left: 2px; top: 14px; width: 8px; height: 8px; border-radius: 2px; background: linear-gradient(135deg, #2E6BFF, #7B5CFF); transform: rotate(45deg); }

/* ---------- 首页：产品优势 ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; padding-bottom: 60px; }
.adv-card { border-radius: var(--radius); overflow: hidden; background: #fff; border: 1px solid var(--c-line); transition: transform .22s, box-shadow .22s; }
.adv-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.adv-fig { height: 190px; display: flex; align-items: center; justify-content: center; }
.adv-fig.a1 { background: linear-gradient(135deg, #EAF0FF, #F2EDFF); color: #2456E6; }
.adv-fig.a2 { background: linear-gradient(135deg, #FFF1E6, #FFE9DC); color: #FF7A1A; }
.adv-fig.a3 { background: linear-gradient(135deg, #E6FBF3, #E3F4FF); color: #0FA36B; }
.adv-fig .ic { width: 76px; height: 76px; }
.adv-body { padding: 22px 24px 26px; }
.adv-body h3 { font-size: 18.5px; color: var(--c-ink); margin-bottom: 10px; }
.adv-body p { font-size: 13.5px; color: var(--c-muted); line-height: 1.8; }

/* ---------- 首页：合作案例 ---------- */
.case-box { padding-bottom: 60px; }
.case-view { position: relative; }
.case-track { overflow: hidden; }
.case-row { display: flex; transition: transform .45s ease; }
.case-card { flex: 0 0 25%; padding: 0 10px; }
.case-in { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; transition: box-shadow .2s, transform .2s; }
.case-in:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.case-img { height: 150px; display: flex; align-items: center; justify-content: center; font-size: 20px; color: #fff; font-weight: 700; letter-spacing: 2px; }
.case-in .case-name { text-align: center; padding: 12px 10px; font-size: 14.5px; color: var(--c-ink); font-weight: 600; }
.case-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 38px; height: 38px; border-radius: 50%; border: 0; background: #fff; box-shadow: var(--shadow); color: var(--c-primary); cursor: pointer; display: flex; align-items: center; justify-content: center; }
.case-nav.prev { left: -16px; }
.case-nav.next { right: -16px; }

/* ---------- 首页：新闻 ---------- */
.news-tabs { padding-bottom: 60px; }
.news-tabbar { display: flex; gap: 14px; border-bottom: 1px solid var(--c-line); margin-bottom: 24px; }
.news-tab { padding: 10px 4px 12px; font-size: 16.5px; color: var(--c-muted); font-weight: 600; cursor: pointer; position: relative; }
.news-tab.on { color: var(--c-primary); }
.news-tab.on::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 3px; border-radius: 2px; background: var(--grad); }
.news-tab-more { margin-left: auto; align-self: center; font-size: 13.5px; color: var(--c-muted); display: flex; align-items: center; gap: 4px; }
.news-tab-more:hover { color: var(--c-primary); }
.news-pane { display: none; }
.news-pane.on { display: block; }
.news-item { display: flex; gap: 20px; padding: 16px 10px; border-bottom: 1px dashed var(--c-line); transition: background .2s; border-radius: 8px; }
.news-item:hover { background: var(--c-bg); }
.news-date { flex: none; width: 92px; text-align: center; background: var(--c-bg); border-radius: 10px; padding: 8px 4px; }
.news-date b { display: block; font-size: 20px; color: var(--c-primary); line-height: 1.2; }
.news-date span { font-size: 12px; color: var(--c-muted); }
.news-body h4 { font-size: 16.5px; color: var(--c-ink); margin-bottom: 6px; }
.news-body p { font-size: 13.5px; color: var(--c-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { font-size: 12.5px; color: #B6C0D2; margin-top: 6px; }

/* ---------- 生态运营 / 解决方案 ---------- */
.eco { padding: 70px 0 40px; position: relative; overflow: hidden; }
.eco::before { content: ""; position: absolute; inset: 0; background: radial-gradient(800px 400px at 15% 20%, var(--c-primary-l), transparent 60%), radial-gradient(700px 380px at 85% 80%, var(--c-accent-l), transparent 60%); z-index: 0; }
.eco .wrap { position: relative; z-index: 1; }
.eco-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; padding-bottom: 60px; }
.eco-card { position: relative; background: #fff; border-radius: var(--radius); padding: 30px 24px; box-shadow: var(--shadow); transition: transform .22s, box-shadow .22s; }
.eco-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.eco-card .e-no { position: absolute; right: 20px; top: 14px; font-size: 44px; font-weight: 800; color: var(--c-bg); line-height: 1; }
.eco-card .e-ic { width: 52px; height: 52px; border-radius: 14px; background: var(--grad); color: #fff; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.eco-card:nth-child(2) .e-ic { background: var(--grad-accent); }
.eco-card:nth-child(3) .e-ic { background: linear-gradient(135deg, #0FA36B, #12C48C); }
.eco-card:nth-child(4) .e-ic { background: linear-gradient(135deg, #7B5CFF, #B65CFF); }
.eco-card .e-ic .ic { width: 26px; height: 26px; }
.eco-card h3 { font-size: 18px; color: var(--c-ink); margin-bottom: 10px; }
.eco-card p { font-size: 13.5px; color: var(--c-muted); line-height: 1.8; }

.solu-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; padding-bottom: 60px; }
.solu-card { display: flex; gap: 22px; align-items: center; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 26px; transition: transform .22s, box-shadow .22s; }
.solu-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.solu-fig { flex: none; width: 110px; height: 110px; border-radius: 16px; display: flex; align-items: center; justify-content: center; }
.solu-fig.s1 { background: var(--c-primary-l); color: var(--c-primary); }
.solu-fig.s2 { background: #E6FBF3; color: #0FA36B; }
.solu-fig.s3 { background: var(--c-accent-l); color: var(--c-accent); }
.solu-fig.s4 { background: #F2EDFF; color: var(--c-violet); }
.solu-fig .ic { width: 52px; height: 52px; }
.solu-card h3 { font-size: 19px; color: var(--c-ink); margin-bottom: 8px; }
.solu-card p { font-size: 13.5px; color: var(--c-muted); line-height: 1.8; }

/* ---------- 右侧悬浮栏 ---------- */
.sider { position: fixed; right: 0; top: 34%; z-index: 800; display: flex; flex-direction: column; box-shadow: var(--shadow); border-radius: 10px 0 0 10px; overflow: hidden; }
.sider a { width: 58px; padding: 12px 6px 10px; background: #fff; border-bottom: 1px solid var(--c-line); display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 12px; color: var(--c-text); transition: background .2s, color .2s; }
.sider a:hover { background: var(--grad); color: #fff; }
.sider a:last-child { border-bottom: 0; }
.sider .ic { width: 22px; height: 22px; }

/* ---------- 弹窗 ---------- */
.pop-mask { position: fixed; inset: 0; background: rgba(9, 20, 40, .55); z-index: 1000; display: none; align-items: flex-start; justify-content: center; }
.pop-mask.show { display: flex; }
.pop { margin-top: 9vh; background: #fff; border-radius: 18px; box-shadow: var(--shadow-lg); position: relative; animation: popIn .28s ease; }
@keyframes popIn { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
.pop-close { position: absolute; right: 16px; top: 16px; width: 32px; height: 32px; border-radius: 50%; border: 0; background: var(--c-bg); color: var(--c-muted); cursor: pointer; display: flex; align-items: center; justify-content: center; }
.pop-close:hover { background: var(--c-line); }
.pop-close .ic { width: 16px; height: 16px; }
.pop-lead { width: 520px; padding: 34px 44px 30px; }
.pop-lead h3 { font-size: 22px; color: var(--c-ink); text-align: center; margin-bottom: 6px; }
.pop-lead .pop-sub { text-align: center; color: var(--c-muted); font-size: 13.5px; margin-bottom: 24px; }
.f-row { display: flex; gap: 14px; }
.f-field { flex: 1; margin-bottom: 16px; }
.f-field label { display: block; font-size: 13.5px; color: var(--c-ink); font-weight: 600; margin-bottom: 6px; }
.f-field label em { color: #E5484D; font-style: normal; margin-right: 2px; }
.f-field input, .f-field textarea {
  width: 100%; border: 1.5px solid var(--c-line); border-radius: 10px; padding: 10px 14px;
  font-size: 14px; font-family: inherit; color: var(--c-ink); outline: none; background: #FBFCFE;
  transition: border-color .2s, box-shadow .2s;
}
.f-field input:focus, .f-field textarea:focus { border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(36, 86, 230, .12); background: #fff; }
.f-field textarea { height: 88px; resize: vertical; }
.f-field .err { display: none; color: #E5484D; font-size: 12.5px; margin-top: 4px; }
.f-field.bad input { border-color: #E5484D; }
.f-field.bad .err { display: block; }
.pop-lead .pop-foot { display: flex; align-items: center; gap: 16px; margin-top: 4px; }
.pop-lead .pop-foot .btn { flex: none; }
.pop-links { font-size: 13px; color: var(--c-muted); }
.pop-links a { color: var(--c-primary); }
.pop-small { width: 300px; padding: 26px; text-align: center; }
.pop-small img { width: 190px; margin: 0 auto 12px; border-radius: 8px; }
.pop-small h4 { font-size: 17px; color: var(--c-ink); margin-bottom: 4px; }
.pop-small p { font-size: 13.5px; color: var(--c-muted); }
.pop-small .tel { font-size: 22px; font-weight: 800; color: var(--c-accent); letter-spacing: 1px; margin-top: 8px; }
.toast {
  position: fixed; left: 50%; bottom: 90px; transform: translateX(-50%) translateY(20px);
  background: var(--c-ink); color: #fff; padding: 12px 26px; border-radius: 999px; font-size: 14px;
  opacity: 0; transition: all .3s; z-index: 1100; pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 页脚 ---------- */
.footer { background: var(--c-footer); color: var(--c-footer-text); font-size: 13.5px; }
.f-main { display: flex; gap: 48px; padding: 46px 0 34px; }
.f-col { flex: 1; }
.f-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; letter-spacing: 1px; }
.f-col ul li { margin-bottom: 10px; }
.f-col ul a { color: var(--c-footer-text); transition: color .2s; }
.f-col ul a:hover { color: #fff; }
.f-apps { display: flex; gap: 14px; margin-bottom: 18px; }
.f-app { text-align: center; }
.f-app img { width: 96px; height: 96px; border-radius: 8px; background: #fff; padding: 4px; margin-bottom: 8px; }
.f-app span { font-size: 12.5px; }
.f-brand { flex: 1.4; }
.f-brand .f-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.f-brand .f-logo img { height: 36px; }
.f-brand .f-logo b { color: #fff; font-size: 17px; display: block; line-height: 1.2; }
.f-brand .f-logo span { font-size: 11px; letter-spacing: 1px; }
.f-brand p { line-height: 1.9; max-width: 300px; }
.f-contact li { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 12px; }
.f-contact .ic { width: 18px; height: 18px; flex: none; color: #5B7096; margin-top: 4px; }
.f-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding: 20px 0; text-align: center; font-size: 12.5px; color: #7185A8; line-height: 2.1; }
.f-bottom a:hover { color: #fff; }
.f-bottom .sep { margin: 0 8px; opacity: .5; }

/* ---------- 内页通用 ---------- */
.page-hero { position: relative; overflow: hidden; color: #fff; padding: 74px 0 64px; background: radial-gradient(1000px 460px at 80% 10%, rgba(123, 92, 255, .45), transparent 60%), radial-gradient(900px 420px at 8% 92%, rgba(36, 86, 230, .5), transparent 62%), #0B1B33; }
.page-hero .b-grid { opacity: .6; }
.page-hero .wrap { position: relative; z-index: 2; }
.crumbs { font-size: 13px; color: #93A5C4; margin-bottom: 18px; }
.crumbs a { color: #93A5C4; }
.crumbs a:hover { color: #fff; }
.crumbs .sep { margin: 0 8px; opacity: .6; }
.page-hero h1 { font-size: 38px; font-weight: 800; letter-spacing: 1px; }
.page-hero .h-desc { margin-top: 14px; max-width: 720px; color: #C7D3EA; font-size: 15.5px; line-height: 1.9; }
.page-hero .h-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.page-hero .h-tags span { padding: 6px 16px; border-radius: 999px; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .2); font-size: 13px; }
.page-hero .h-cta { margin-top: 28px; display: flex; gap: 14px; }

.sec { padding: 60px 0; }
.sec.alt { background: var(--c-bg); }

/* 内页卡片网格 */
.pgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.pgrid.cols4 { grid-template-columns: repeat(4, 1fr); }
.pcard { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 26px 22px; transition: transform .2s, box-shadow .2s; }
.pcard:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.pcard .p-ic { width: 50px; height: 50px; border-radius: 13px; background: var(--c-primary-l); color: var(--c-primary); display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.pcard .p-ic .ic { width: 26px; height: 26px; }
.pcard:nth-child(3n+2) .p-ic { background: var(--c-accent-l); color: var(--c-accent); }
.pcard:nth-child(3n) .p-ic { background: #E6FBF3; color: #0FA36B; }
.pcard h3 { font-size: 17px; color: var(--c-ink); margin-bottom: 8px; }
.pcard p { font-size: 13.5px; color: var(--c-muted); line-height: 1.8; }

/* 图文交替 */
.mrow { display: flex; gap: 48px; align-items: center; margin-bottom: 54px; }
.mrow.rev { flex-direction: row-reverse; }
.mrow .m-txt { flex: 1; }
.mrow .m-txt h3 { font-size: 24px; color: var(--c-ink); margin-bottom: 14px; }
.mrow .m-txt p { font-size: 14.5px; color: var(--c-text); margin-bottom: 14px; }
.mrow .m-txt li { position: relative; padding: 5px 0 5px 22px; font-size: 14px; color: var(--c-text); }
.mrow .m-txt li::before { content: ""; position: absolute; left: 0; top: 13px; width: 10px; height: 10px; border-radius: 3px; background: linear-gradient(135deg, #2E6BFF, #7B5CFF); transform: rotate(45deg); }
.m-fig { flex: 1; min-height: 280px; border-radius: 18px; display: flex; align-items: center; justify-content: center; }
.m-fig svg { max-width: 90%; max-height: 240px; }
.m-fig.f-blue { background: var(--c-primary-l); color: var(--c-primary); }
.m-fig.f-orange { background: var(--c-accent-l); color: var(--c-accent); }
.m-fig.f-green { background: #E6FBF3; color: #0FA36B; }
.m-fig.f-violet { background: #F2EDFF; color: var(--c-violet); }
.m-fig .ic { width: 90px; height: 90px; }

/* 数据条 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.stat { text-align: center; padding: 30px 10px; background: #fff; border-radius: var(--radius); border: 1px solid var(--c-line); }
.stat b { display: block; font-size: 36px; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1.2; }
.stat span { font-size: 14px; color: var(--c-muted); }

/* 步骤 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { position: relative; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 28px 22px; }
.step .s-no { position: absolute; right: 18px; top: 12px; font-size: 40px; font-weight: 800; color: var(--c-bg); }
.step .s-ic { width: 46px; height: 46px; border-radius: 50%; background: var(--grad); color: #fff; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.step .s-ic .ic { width: 24px; height: 24px; }
.step h3 { font-size: 16.5px; color: var(--c-ink); margin-bottom: 8px; }
.step p { font-size: 13px; color: var(--c-muted); line-height: 1.8; }

/* CTA 条 */
.cta { margin: 60px 0 0; background: linear-gradient(100deg, #1E3A8A 0%, #2456E6 55%, #7B5CFF 100%); border-radius: 20px; padding: 44px 54px; display: flex; align-items: center; justify-content: space-between; gap: 30px; color: #fff; position: relative; overflow: hidden; }
.cta::before { content: ""; position: absolute; right: -60px; top: -60px; width: 260px; height: 260px; border-radius: 50%; background: rgba(255, 255, 255, .08); }
.cta h3 { font-size: 26px; letter-spacing: 1px; }
.cta p { color: #C9D6F2; font-size: 14px; margin-top: 8px; }
.cta .btn { flex: none; position: relative; z-index: 1; }

/* 列表页（新闻） */
.list-page { display: flex; gap: 30px; padding: 40px 0 60px; }
.list-main { flex: 1; }
.list-side { flex: none; width: 300px; }
.side-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 22px; margin-bottom: 22px; }
.side-card h4 { font-size: 16.5px; color: var(--c-ink); margin-bottom: 14px; padding-left: 12px; border-left: 4px solid var(--c-primary); }
.side-card ul li { padding: 8px 0; border-bottom: 1px dashed var(--c-line); font-size: 13.5px; color: var(--c-text); }
.side-card ul li a:hover { color: var(--c-primary); }
.side-card ul li:last-child { border-bottom: 0; }
.side-card .side-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.side-card .side-tags a { padding: 5px 13px; border-radius: 999px; background: var(--c-bg); font-size: 12.5px; color: var(--c-text); }
.side-card .side-tags a:hover { background: var(--c-primary-l); color: var(--c-primary); }
.pager { display: flex; gap: 10px; justify-content: center; margin-top: 30px; }
.pager a, .pager span { min-width: 38px; height: 38px; line-height: 36px; text-align: center; border: 1px solid var(--c-line); border-radius: 9px; font-size: 14px; color: var(--c-text); background: #fff; }
.pager .cur { background: var(--grad); border-color: transparent; color: #fff; font-weight: 700; }
.pager a:hover { border-color: var(--c-primary); color: var(--c-primary); }

/* 文章页 */
.article { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 36px 44px; }
.article h1 { font-size: 26px; color: var(--c-ink); line-height: 1.5; margin-bottom: 12px; }
.article .a-meta { font-size: 13px; color: var(--c-muted); padding-bottom: 16px; border-bottom: 1px solid var(--c-line); margin-bottom: 22px; }
.article .a-body p { margin-bottom: 16px; font-size: 15px; color: var(--c-text); line-height: 2; }
.article .a-body h2 { font-size: 19px; color: var(--c-ink); margin: 26px 0 12px; }
.article .a-body ul { margin-bottom: 16px; }
.article .a-body li { position: relative; padding: 4px 0 4px 20px; color: var(--c-text); }
.article .a-body li::before { content: ""; position: absolute; left: 2px; top: 12px; width: 8px; height: 8px; border-radius: 2px; background: var(--c-accent); transform: rotate(45deg); }

/* 联系我们 */
.contact-cols { display: flex; gap: 26px; }
.contact-info { flex: 1; }
.contact-form { flex: 1; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 30px 34px; box-shadow: var(--shadow); }
.cinfo { display: flex; gap: 14px; margin-bottom: 16px; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 18px 20px; }
.cinfo .ic { width: 40px; height: 40px; flex: none; border-radius: 11px; background: var(--c-primary-l); color: var(--c-primary); padding: 9px; }
.cinfo b { display: block; font-size: 14.5px; color: var(--c-ink); }
.cinfo span { font-size: 13.5px; color: var(--c-muted); }

/* 响应式 */
@media (max-width: 1220px) {
  .wrap { width: 96%; }
}
@media (max-width: 1024px) {
  .feat-grid, .pgrid.cols4 { grid-template-columns: repeat(3, 1fr); }
  .b-fig { display: none; }
  .b-txt { max-width: 100%; }
  .case-card { flex-basis: 33.333%; }
}
@media (max-width: 992px) {
  .nav-menu { display: none; }
  .nav-cta .nav-login { display: none; }
  .nav-burger { display: block; }
  .nav-m { display: block; position: fixed; top: 68px; left: 0; right: 0; bottom: 0; background: #fff; z-index: 890; overflow-y: auto; padding: 10px 20px 30px; transform: translateX(100%); transition: transform .3s; }
  .nav-m.open { transform: translateX(0); }
  .nav-m > ul > li { border-bottom: 1px solid var(--c-line); }
  .nav-m > ul > li > a { display: flex; justify-content: space-between; padding: 13px 4px; font-size: 16px; color: var(--c-ink); font-weight: 600; }
  .nav-m .sub { display: none; padding: 0 8px 12px; }
  .nav-m li.open .sub { display: block; }
  .nav-m .sub a { display: block; padding: 7px 4px; font-size: 14px; color: var(--c-text); }
  .val-row, .eco-grid, .stats, .steps { grid-template-columns: repeat(2, 1fr); }
  .solu-grid, .pgrid { grid-template-columns: 1fr 1fr; }
  .hw-main { flex-direction: column; }
  .list-page { flex-direction: column; }
  .list-side { width: 100%; }
  .cta { flex-direction: column; text-align: center; }
  .contact-cols { flex-direction: column; }
  .sider { display: none; }
}
@media (max-width: 640px) {
  .feat-grid, .pgrid, .pgrid.cols4, .val-row, .eco-grid, .stats, .steps, .solu-grid, .adv-grid { grid-template-columns: 1fr; }
  .b-txt h1 { font-size: 30px; }
  .page-hero h1 { font-size: 27px; }
  .pop-lead { width: 94%; padding: 26px 20px; }
  .f-main { flex-direction: column; gap: 26px; }
  .mrow, .mrow.rev { flex-direction: column; gap: 24px; }
  .f-row { flex-direction: column; gap: 0; }
  .case-card { flex-basis: 50%; }
  .banner { height: 520px; }
}

/* ---------- 滚动显现 ---------- */
.rv { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.rv.in { opacity: 1; transform: none; }