/* ============================================================
   简星栈科技 · StarStack Cloud
   企业级设计系统 —— 阿里云 × 华为云 结合风格
   主色 #1664ff / 深海军蓝 #0a1f44 / 品牌金 #f5c842
   ============================================================ */

:root {
  --primary: #1664ff;
  --primary-2: #0a5bff;
  --primary-soft: #e8f1ff;
  --primary-grad: linear-gradient(135deg, #1664ff 0%, #4d8bff 100%);
  --navy: #0a1f44;
  --navy-2: #0d2a5c;
  --navy-grad: linear-gradient(150deg, #081a3a 0%, #0d2f66 55%, #1664ff 130%);
  --accent: #f5c842;
  --accent-soft: #fff6dd;
  --bg: #ffffff;
  --bg-2: #f5f7fb;
  --bg-3: #eef2f8;
  --text: #1f2329;
  --text-2: #4e5969;
  --text-3: #86909c;
  --border: #e5e8ef;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 6px 24px rgba(22, 100, 255, 0.06);
  --shadow-lg: 0 18px 50px rgba(10, 31, 68, 0.10);
  --shadow-primary: 0 10px 28px rgba(22, 100, 255, 0.25);
  --maxw: 1240px;
  --header-h: 72px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; outline: none; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ===== 通用按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 24px; border-radius: 10px; font-size: 15px; font-weight: 600;
  transition: all .25s; white-space: nowrap; cursor: pointer; border: 1px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--shadow-primary); }
.btn-primary:hover { background: var(--primary-2); transform: translateY(-2px); }
.btn-outline { border-color: rgba(255,255,255,.55); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); transform: translateY(-2px); }
.btn-ghost { border-color: var(--primary); color: var(--primary); background: #fff; }
.btn-ghost:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: #1f2329; }
.btn-accent:hover { background: #ffd55a; transform: translateY(-2px); }
.btn-block { width: 100%; }
.btn-sm { padding: 7px 16px; font-size: 13px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

/* ===== 徽标 / 标签 ===== */
.badge {
  display: inline-block; padding: 3px 12px; border-radius: 999px;
  font-size: 12px; font-weight: 600; line-height: 1.6;
}
.badge-blue { background: var(--primary-soft); color: var(--primary); }
.badge-gold { background: var(--accent-soft); color: #8a6a00; }
.badge-green { background: #e6f7f0; color: #0a8f5d; }
.badge-gray { background: #f0f2f5; color: var(--text-2); }

/* ===== 顶栏（topbar） ===== */
.topbar { background: var(--navy); color: #c9d6ee; font-size: 13px; }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 38px; flex-wrap: wrap; gap: 6px; }
.topbar a { color: #c9d6ee; transition: .2s; }
.topbar a:hover { color: var(--accent); }
.topbar .t-right { display: flex; gap: 20px; align-items: center; }
.topbar .t-right i { color: var(--accent); margin-right: 5px; }

/* ===== 导航栏 ===== */
.header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,.86); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s;
}
.header.scrolled { box-shadow: 0 6px 24px rgba(10,31,68,.06); }
.nav { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo .logo-mark {
  width: 40px; height: 40px; border-radius: 11px; background: var(--navy-grad);
  display: grid; place-items: center; color: #fff; font-size: 20px; font-weight: 800; box-shadow: 0 6px 14px rgba(10,31,68,.25);
}
.logo .logo-name { line-height: 1.1; }
.logo .logo-name b { font-size: 19px; letter-spacing: 1px; color: var(--navy); }
.logo .logo-name span { font-size: 11px; color: var(--text-3); letter-spacing: 2px; }
.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu > li > a {
  display: block; padding: 9px 15px; border-radius: 9px; font-weight: 500; color: var(--text);
  position: relative; transition: .2s;
}
.nav-menu > li > a:hover, .nav-menu > li.active > a { color: var(--primary); background: var(--primary-soft); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.nav-right .user-chip {
  display: flex; align-items: center; gap: 8px; padding: 5px 12px 5px 5px;
  border-radius: 999px; background: var(--bg-2); color: var(--text); font-size: 13px; font-weight: 600; cursor: pointer;
}
.nav-right .user-chip .avatar {
  width: 30px; height: 30px; border-radius: 50%; background: var(--primary-grad);
  color: #fff; display: grid; place-items: center; font-size: 14px;
}
.dropdown { position: relative; }
.dropdown .drop-menu {
  position: absolute; right: 0; top: calc(100% + 10px); background: #fff; border: 1px solid var(--border);
  border-radius: 12px; box-shadow: var(--shadow-lg); min-width: 180px; padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(-6px); transition: .2s; z-index: 100;
}
.dropdown:hover .drop-menu, .dropdown.open .drop-menu { opacity: 1; visibility: visible; transform: none; }
.drop-menu a { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 8px; font-size: 14px; color: var(--text); }
.drop-menu a:hover { background: var(--bg-2); color: var(--primary); }
.drop-menu a.danger:hover { color: #e03131; background: #fff0f0; }
.drop-menu hr { border: none; border-top: 1px solid var(--border); margin: 6px 0; }

.burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 6px; }
.burger span { width: 24px; height: 3px; background: var(--navy); border-radius: 3px; transition: .3s; }

/* ===== 移动菜单 ===== */
.mobile-menu {
  display: none; position: fixed; top: 0; right: 0; bottom: 0; width: 280px; max-width: 82vw;
  background: #fff; z-index: 1100; box-shadow: -10px 0 40px rgba(10,31,68,.15);
  transform: translateX(100%); transition: transform .3s; padding: 24px; overflow-y: auto;
}
.mobile-menu.open { transform: none; }
.mobile-menu .mm-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.mobile-menu .mm-close { font-size: 26px; color: var(--text-2); cursor: pointer; }
.mobile-menu a { display: block; padding: 13px 4px; border-bottom: 1px solid var(--bg-3); font-weight: 500; }
.mobile-menu a:hover { color: var(--primary); }
.mm-overlay { display: none; position: fixed; inset: 0; background: rgba(10,31,68,.4); z-index: 1050; }
.mm-overlay.show { display: block; }

/* ===== HERO 区块 ===== */
.hero {
  position: relative; color: #fff; overflow: hidden;
  background: var(--navy-grad);
  min-height: 560px; display: flex; align-items: center;
}
.hero .wrap { position: relative; z-index: 5; width: 100%; }
.hero::before {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background:
    radial-gradient(circle at 78% 20%, rgba(77,139,255,.45), transparent 42%),
    radial-gradient(circle at 20% 85%, rgba(245,200,66,.18), transparent 38%);
}
.hero-grid { position: absolute; inset: 0; opacity: .12;
  background-image: linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
  background-size: 56px 56px; }
.hero-float { position: absolute; border-radius: 24px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.16); backdrop-filter: blur(4px); animation: floatY 7s ease-in-out infinite; }
.hero-float .hf { display: block; text-align: center; font-size: 12px; padding: 14px 16px; color: #dfe9ff; }
.hero-float .hf i { display: block; font-size: 26px; margin-bottom: 6px; color: var(--accent); }
.hf-1 { top: 16%; left: 5%; animation-delay: 0s; }
.hf-2 { top: 60%; left: 12%; animation-delay: 1.4s; }
.hf-3 { top: 24%; right: 7%; animation-delay: 2.2s; }
.hf-4 { top: 66%; right: 14%; animation-delay: .7s; }
@keyframes floatY { 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(-18px);} }

.hero-inner { display: flex; align-items: center; gap: 48px; padding: 84px 0; flex-wrap: wrap; }
.hero-copy { flex: 1 1 460px; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22); font-size: 13px; color: #dbe7ff; margin-bottom: 18px;
}
.hero-copy h1 { font-size: clamp(30px, 4.6vw, 52px); line-height: 1.18; font-weight: 800; letter-spacing: 1px; margin-bottom: 14px; }
.hero-copy h1 .grad { background: linear-gradient(90deg, #8fb7ff, var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-copy p { font-size: 17px; color: #c9d6ee; max-width: 620px; margin-bottom: 26px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-search { margin-top: 30px; max-width: 620px; }
.search-bar {
  display: flex; background: #fff; border-radius: 12px; overflow: hidden; padding: 5px;
  box-shadow: 0 14px 40px rgba(0,0,0,.25); max-width: 620px;
}
.search-bar input { flex: 1; border: none; padding: 12px 16px; font-size: 15px; color: var(--text); }
.search-bar .search-btn { padding: 12px 26px; }
.search-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; align-items: center; }
.search-tags span { font-size: 13px; color: #9fb4d8; }
.search-tags a { font-size: 13px; color: #c9d6ee; padding: 3px 10px; border-radius: 999px; background: rgba(255,255,255,.1); }
.search-tags a:hover { color: var(--accent); }

.hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 42px; max-width: 560px; }
.hero-stat { border-left: 1px solid rgba(255,255,255,.18); padding-left: 16px; }
.hero-stat b { font-size: 26px; font-weight: 800; color: #fff; display: block; }
.hero-stat b i { font-style: normal; }
.hero-stat span { font-size: 13px; color: #9fb4d8; }

/* ===== 通用分区 ===== */
.section { padding: 88px 0; }
.section.bg-gray { background: var(--bg-2); }
.section.bg-white { background: #fff; }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.sec-head .kicker { color: var(--primary); font-weight: 700; letter-spacing: 3px; font-size: 13px; text-transform: uppercase; }
.sec-head h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; letter-spacing: 1px; margin: 10px 0 14px; color: var(--navy); }
.sec-head h2 .grad { background: var(--primary-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sec-head p { color: var(--text-2); font-size: 16px; }
.sec-head.light { color: #fff; }
.sec-head.light h2 { color: #fff; }
.sec-head.light p { color: #c9d6ee; }

/* ===== 特性卡片（产品/服务） ===== */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
@media (max-width: 1024px){ .grid-4{grid-template-columns:repeat(2,1fr);} .grid-3{grid-template-columns:repeat(2,1fr);} }
@media (max-width: 640px){ .grid-4,.grid-3,.grid-2{grid-template-columns:1fr;} }

.fcard {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 22px; transition: all .3s; position: relative; overflow: hidden;
}
.fcard:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.fcard .ic {
  width: 52px; height: 52px; border-radius: 13px; display: grid; place-items: center;
  font-size: 24px; color: var(--primary); background: var(--primary-soft); margin-bottom: 16px; transition: .3s;
}
.fcard:hover .ic { background: var(--primary); color: #fff; }
.fcard h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.fcard p { font-size: 14px; color: var(--text-2); }
.fcard .more { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-size: 14px; font-weight: 600; margin-top: 14px; }
.ic-gold .ic { color: #a4750a; background: var(--accent-soft); }
.ic-gold:hover .ic { background: var(--accent); color: #fff; }

/* ===== 深色块 ===== */
.dark-panel { background: var(--navy-grad); color: #fff; position: relative; overflow: hidden; border-radius: var(--radius-lg); padding: 60px 48px; }
.dark-panel .fcard { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.14); }
.dark-panel .fcard h3 { color: #fff; }
.dark-panel .fcard p { color: #b9c8e4; }
.dark-panel .fcard .ic { background: rgba(255,255,255,.12); color: #cfe0ff; }
.dark-panel .fcard:hover .ic { background: var(--accent); color: #1f2329; }
.dark-panel .fcard:hover { border-color: var(--accent); }

/* ===== 数字统计 ===== */
.stat-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
@media (max-width: 768px){ .stat-band{grid-template-columns:repeat(2,1fr);} }
.stat-item .num { font-size: 40px; font-weight: 800; color: var(--primary); }
.stat-item .num i { font-style: normal; }
.stat-item .lbl { color: var(--text-2); margin-top: 6px; }
.stat-white .stat-item .num { color: #fff; }
.stat-white .stat-item .lbl { color: #b9c8e4; }

/* ===== Tab 切换 ===== */
.tabs { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; margin-bottom: 34px; }
.tab-btn { padding: 9px 22px; border-radius: 999px; border: 1px solid var(--border); background: #fff; color: var(--text-2); font-weight: 500; transition: .2s; }
.tab-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: var(--shadow-primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp .4s ease; }
@keyframes fadeUp { from{opacity:0; transform:translateY(12px);} to{opacity:1;transform:none;} }

/* ===== 卡片网格（案例） ===== */
.media-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: all .3s; }
.media-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.media-card .thumb { position: relative; height: 190px; overflow: hidden; }
.media-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: .5s; }
.media-card:hover .thumb img { transform: scale(1.06); }
.media-card .thumb .tag { position: absolute; top: 12px; left: 12px; }
.media-card .body { padding: 18px 20px 22px; }
.media-card .body h3 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.media-card .body p { font-size: 14px; color: var(--text-2); }
.media-card .body .meta { font-size: 12px; color: var(--text-3); margin-top: 12px; }

/* ===== 新闻列表 ===== */
.news-list { display: flex; flex-direction: column; gap: 14px; }
.news-row {
  display: flex; align-items: center; gap: 20px; background: #fff; border: 1px solid var(--border);
  border-radius: 12px; padding: 16px 22px; transition: .25s; cursor: pointer;
}
.news-row:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateX(4px); }
.news-row .date { text-align: center; min-width: 64px; border-right: 2px solid var(--bg-3); padding-right: 20px; }
.news-row .date b { font-size: 24px; color: var(--primary); display: block; }
.news-row .date span { font-size: 12px; color: var(--text-3); }
.news-row .ntitle { flex: 1; }
.news-row .ntitle h3 { font-size: 16px; font-weight: 600; }
.news-row .ntitle p { font-size: 13px; color: var(--text-3); margin-top: 4px; }
.news-row .arrow { color: var(--primary); font-size: 20px; }

/* ===== 时间线 ===== */
.timeline { position: relative; max-width: 860px; margin: 0 auto; padding-left: 30px; }
.timeline::before { content:""; position:absolute; left:7px; top:6px; bottom:6px; width:2px; background: linear-gradient(var(--primary), var(--accent)); opacity:.4; }
.tl-item { position: relative; padding: 0 0 34px 26px; }
.tl-item::before { content:""; position:absolute; left:-26px; top:4px; width:14px; height:14px; border-radius:50%; background:#fff; border:3px solid var(--primary); box-shadow:0 0 0 5px var(--primary-soft); }
.tl-item .yr { font-size: 13px; color: var(--primary); font-weight: 700; }
.tl-item h4 { font-size: 17px; font-weight: 700; margin: 4px 0 6px; }
.tl-item p { font-size: 14px; color: var(--text-2); }

/* ===== 团队 ===== */
.team-card { text-align: center; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 20px; transition: .3s; }
.team-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.team-card .avatar { width: 96px; height: 96px; margin: 0 auto 14px; border-radius: 50%; object-fit: cover; border: 4px solid var(--primary-soft); }
.team-card:hover .avatar { border-color: var(--primary); }
.team-card h3 { font-size: 17px; font-weight: 700; }
.team-card .role { color: var(--primary); font-size: 13px; font-weight: 600; margin: 4px 0 10px; }
.team-card p { font-size: 13px; color: var(--text-2); }

/* ===== 产品页 ===== */
.product-hero { background: var(--navy-grad); color: #fff; position: relative; overflow: hidden; }
.product-hero .wrap { display: flex; align-items: center; gap: 48px; padding: 88px 24px; flex-wrap: wrap; }
.product-hero .ph-copy { flex: 1 1 440px; position: relative; z-index: 2; }
.product-hero h1 { font-size: clamp(30px,4.4vw,48px); font-weight: 800; line-height: 1.16; margin-bottom: 16px; }
.product-hero p { color: #c9d6ee; font-size: 17px; margin-bottom: 26px; max-width: 560px; }
.product-hero .ph-visual {
  flex: 1 1 360px; min-height: 340px; position: relative;
  display: grid; place-items: center;
}
.device {
  width: min(330px, 86%); background: linear-gradient(160deg,#10294f,#0a1a38);
  border: 1px solid rgba(255,255,255,.16); border-radius: 28px; padding: 20px;
  box-shadow: 0 30px 70px rgba(0,0,0,.4); animation: floatY 8s ease-in-out infinite;
}
.device .screen { background: #0a1526; border-radius: 18px; padding: 18px 16px; color: #fff; font-family: ui-monospace, monospace; }
.device .screen .dot { display:flex; gap:6px; margin-bottom:12px; }
.device .screen .dot i { width:9px;height:9px;border-radius:50%; }
.device .screen h4 { font-size:14px; color:#9fd0ff; margin-bottom:8px; }
.device .screen .line { height:9px; border-radius:5px; background:rgba(255,255,255,.08); margin-bottom:9px; }
.device .screen .line.on { background: linear-gradient(90deg,var(--primary),#7aa8ff); width:80%; }
.device .screen .line.w { width:55%; }

.feature-row { display:flex; align-items:center; gap:44px; padding: 26px 0; flex-wrap:wrap; }
.feature-row .fr-copy { flex:1 1 440px; }
.feature-row .fr-copy h3 { font-size:22px; font-weight:800; margin-bottom:12px; color: var(--navy); }
.feature-row .fr-copy p { color:var(--text-2); }
.feature-row .fr-visual { flex:1 1 360px; }
.fr-visual .mock {
  background:#fff; border:1px solid var(--border); border-radius:16px; padding:22px; box-shadow:var(--shadow);
}
.fr-visual .mock .m-head { display:flex; justify-content:space-between; align-items:center; margin-bottom:14px; }
.fr-visual .mock .m-head b { color:var(--navy); font-size:15px; }
.chip-row { display:flex; gap:8px; flex-wrap:wrap; }
.chip { padding:4px 12px; border-radius:999px; font-size:12px; font-weight:600; }
.chip.b { background:var(--primary-soft); color:var(--primary); }
.chip.g { background:var(--accent-soft); color:#8a6a00; }

.pricing { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
@media(max-width:900px){ .pricing{grid-template-columns:1fr;} }
.price-card { background:#fff; border:1px solid var(--border); border-radius:var(--radius-lg); padding:30px 26px; position:relative; transition:.3s; }
.price-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-lg); }
.price-card.hot { border-color:var(--primary); box-shadow:var(--shadow-lg); }
.price-card.hot::before { content:"推荐"; position:absolute; top:18px; right:20px; background:var(--primary); color:#fff; font-size:12px; padding:2px 12px; border-radius:999px; font-weight:700; }
.price-card .p-name { font-size:18px; font-weight:700; }
.price-card .p-price { margin:16px 0; }
.price-card .p-price b { font-size:40px; color:var(--primary); font-weight:800; }
.price-card .p-price span { color:var(--text-3); }
.price-card ul { margin-top:18px; }
.price-card li { display:flex; gap:10px; padding:7px 0; font-size:14px; color:var(--text-2); }
.price-card li i { color:#0a8f5d; }

.faq { max-width:820px; margin:0 auto; }
.faq-item { border:1px solid var(--border); border-radius:12px; margin-bottom:12px; overflow:hidden; background:#fff; }
.faq-item .q { display:flex; justify-content:space-between; align-items:center; padding:16px 20px; font-weight:600; cursor:pointer; }
.faq-item .q i { transition:.3s; color:var(--primary); }
.faq-item.open .q i { transform:rotate(45deg); }
.faq-item .a { display:none; padding:0 20px 18px; color:var(--text-2); font-size:14px; }

/* ===== 表单 ===== */
.field { margin-bottom: 16px; }
.field label { display:block; font-size:13px; font-weight:600; color:var(--text); margin-bottom:7px; }
.field label .req { color:#e03131; }
.field .input {
  width:100%; border:1px solid var(--border); border-radius:10px; padding:12px 14px; font-size:15px;
  background:#fff; transition:.2s;
}
.field .input:focus { border-color:var(--primary); box-shadow:0 0 0 3px var(--primary-soft); }
.field .input[type=password] { letter-spacing:2px; }
.input-hint { font-size:12px; color:var(--text-3); margin-top:5px; }
.err-msg { color:#e03131; font-size:13px; margin-top:4px; min-height:18px; }
.ok-msg { color:#0a8f5d; font-size:13px; margin-top:4px; min-height:18px; }

/* ===== 登录 / 注册 ===== */
.auth-wrap { display:flex; min-height: calc(100vh - 110px); align-items:stretch; }
.auth-left { flex:1 1 46%; background: var(--navy-grad); color:#fff; position:relative; overflow:hidden; display:flex; align-items:center; padding:56px; }
.auth-left::before{content:"";position:absolute;inset:0;opacity:.12;background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);background-size:52px 52px;}
.auth-left .al-inner{position:relative;z-index:2;max-width:460px;}
.auth-left h2{font-size:32px;font-weight:800;margin-bottom:14px;}
.auth-left p{color:#c9d6ee;margin-bottom:30px;}
.auth-left .al-points li{display:flex;gap:12px;margin:16px 0;font-size:15px;color:#dbe7ff;}
.auth-left .al-points i{color:var(--accent);}
.auth-left .al-logo{position:absolute;bottom:30px;left:56px;font-size:15px;color:#9fb4d8;}
.auth-right { flex:1 1 54%; display:flex; align-items:center; justify-content:center; padding:56px 24px; background:#fff; }
.auth-card{width:100%;max-width:430px;}
.auth-card .auth-title{text-align:center;margin-bottom:26px;}
.auth-card .auth-title h2{font-size:26px;font-weight:800;color:var(--navy);}
.auth-card .auth-title p{color:var(--text-3);margin-top:6px;}
.auth-alt{text-align:center;margin-top:22px;font-size:14px;color:var(--text-2);}
.auth-alt a{color:var(--primary);font-weight:600;}
.auth-divider{display:flex;align-items:center;gap:12px;color:var(--text-3);font-size:12px;margin:22px 0;}
.auth-divider::before,.auth-divider::after{content:"";flex:1;height:1px;background:var(--border);}
.social-row{display:flex;justify-content:center;gap:14px;}
.social-row a{width:44px;height:44px;border-radius:50%;border:1px solid var(--border);display:grid;place-items:center;color:var(--text-2);font-size:18px;transition:.2s;}
.social-row a:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-3px);}
@media(max-width:900px){ .auth-left{display:none;} .auth-right{flex:1;} }

/* ===== 用户中心 ===== */
.dash { display:grid; grid-template-columns:250px 1fr; gap:28px; padding:44px 0; }
@media(max-width:860px){ .dash{grid-template-columns:1fr;} }
.dash-side{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;height:fit-content;}
.dash-side .uhead{text-align:center;padding-bottom:18px;border-bottom:1px solid var(--bg-3);margin-bottom:14px;}
.dash-side .uhead .avatar{width:70px;height:70px;border-radius:50%;background:var(--primary-grad);color:#fff;display:grid;place-items:center;font-size:26px;margin:0 auto 10px;}
.dash-side .uhead b{font-size:16px;display:block;}
.dash-side .uhead span{font-size:13px;color:var(--text-3);}
.dash-side nav a{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:9px;color:var(--text-2);font-weight:500;transition:.2s;margin-bottom:4px;}
.dash-side nav a:hover{background:var(--bg-2);color:var(--primary);}
.dash-side nav a.active{background:var(--primary-soft);color:var(--primary);font-weight:700;}
.dash-main{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:30px;}
.dash-main h3{font-size:20px;font-weight:800;color:var(--navy);margin-bottom:22px;}
.kpi-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px;}
@media(max-width:640px){.kpi-row{grid-template-columns:1fr;}}
.kpi{background:var(--bg-2);border-radius:12px;padding:20px;}
.kpi b{font-size:30px;font-weight:800;color:var(--primary);}
.kpi span{display:block;color:var(--text-3);font-size:13px;margin-top:4px;}

/* ===== 后台管理 ===== */
.admin-body{background:var(--bg-2);}
.admin-layout{display:grid;grid-template-columns:240px 1fr;min-height:100vh;}
@media(max-width:860px){.admin-layout{grid-template-columns:1fr;}}
.admin-side{background:var(--navy);color:#c9d6ee;}
.admin-side .alogo{display:flex;align-items:center;gap:10px;padding:22px 20px;border-bottom:1px solid rgba(255,255,255,.1);color:#fff;font-weight:800;letter-spacing:1px;}
.admin-side .alogo .logo-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--accent),#ffb63d);display:grid;place-items:center;color:#1f2329;font-weight:900;}
.admin-side nav{padding:16px 12px;}
.admin-side nav .g{font-size:11px;letter-spacing:2px;color:#6f84ad;padding:12px 12px 6px;}
.admin-side nav a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:9px;color:#c9d6ee;font-size:14px;transition:.2s;margin-bottom:2px;}
.admin-side nav a:hover{background:rgba(255,255,255,.08);color:#fff;}
.admin-side nav a.active{background:var(--primary);color:#fff;}
.admin-main{padding:28px;}
.admin-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;flex-wrap:wrap;gap:12px;}
.admin-top h2{font-size:24px;font-weight:800;color:var(--navy);}
.admin-top .at-user{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--border);border-radius:999px;padding:5px 14px 5px 5px;font-size:13px;font-weight:600;cursor:pointer;}
.admin-top .at-user .avatar{width:30px;height:30px;border-radius:50%;background:var(--primary-grad);color:#fff;display:grid;place-items:center;}
.panel{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:24px;}
.panel .p-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;}
.panel .p-head h4{font-size:17px;font-weight:700;color:var(--navy);}
.admin-kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px;}
@media(max-width:900px){.admin-kpis{grid-template-columns:repeat(2,1fr);}}
.admin-kpi{background:#fff;border:1px solid var(--border);border-radius:12px;padding:20px;display:flex;justify-content:space-between;align-items:center;}
.admin-kpi .a-k b{font-size:30px;font-weight:800;color:var(--navy);}
.admin-kpi .a-k span{font-size:13px;color:var(--text-3);}
.admin-kpi .a-i{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;font-size:22px;}
.ai-blue{background:var(--primary-soft);color:var(--primary);}
.ai-gold{background:var(--accent-soft);color:#a4750a;}
.ai-green{background:#e6f7f0;color:#0a8f5d;}
.ai-red{background:#fff0f0;color:#e03131;}

.table{width:100%;border-collapse:collapse;}
.table th{text-align:left;font-size:12px;letter-spacing:1px;color:var(--text-3);text-transform:uppercase;padding:10px 12px;border-bottom:1px solid var(--border);}
.table td{padding:12px;border-bottom:1px solid var(--bg-3);font-size:14px;}
.table tr:hover td{background:var(--bg-2);}
.table .u-av{width:32px;height:32px;border-radius:50%;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-size:13px;font-weight:700;}

.badge-status{padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;}
.st-active{background:#e6f7f0;color:#0a8f5d;}
.st-disabled{background:#fff0f0;color:#e03131;}
.st-admin{background:var(--accent-soft);color:#8a6a00;}

/* ===== 页脚 ===== */
.footer{background:var(--navy);color:#aebbd8;padding:64px 0 0;}
.footer .f-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);}
@media(max-width:960px){.footer .f-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.footer .f-grid{grid-template-columns:1fr;}}
.footer .f-brand .logo-name b{color:#fff;}
.footer .f-brand .logo-name span{color:#7a8fb8;}
.footer .f-brand p{font-size:14px;margin:14px 0 20px;max-width:300px;}
.footer h5{color:#fff;font-size:16px;margin-bottom:16px;font-weight:700;}
.footer .f-links li{margin-bottom:10px;}
.footer .f-links a{font-size:14px;color:#aebbd8;transition:.2s;}
.footer .f-links a:hover{color:var(--accent);padding-left:4px;}
.footer .f-contact li{display:flex;gap:10px;margin-bottom:12px;font-size:14px;}
.footer .f-contact i{color:var(--accent);margin-top:3px;}
.footer .f-bottom{display:flex;justify-content:space-between;align-items:center;padding:22px 0;flex-wrap:wrap;gap:10px;font-size:13px;color:#7a8fb8;}
.footer .f-bottom .flink{display:flex;gap:16px;}
.footer .f-bottom a{color:#7a8fb8;}
.footer .f-bottom a:hover{color:var(--accent);}

/* ===== 回到顶部 ===== */
.gotop{position:fixed;right:26px;bottom:30px;width:46px;height:46px;border-radius:12px;background:var(--primary-grad);color:#fff;display:grid;place-items:center;font-size:20px;box-shadow:var(--shadow-primary);opacity:0;visibility:hidden;transform:translateY(12px);transition:.3s;z-index:900;cursor:pointer;}
.gotop.show{opacity:1;visibility:visible;transform:none;}

/* ===== 滚动显现动画 ===== */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease;}
.reveal.in{opacity:1;transform:none;}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}

/* ===== 提示 toast ===== */
.toast{position:fixed;top:84px;left:50%;transform:translate(-50%,-20px);z-index:2000;padding:12px 22px;border-radius:10px;color:#fff;font-size:14px;font-weight:600;box-shadow:0 10px 30px rgba(0,0,0,.2);opacity:0;transition:.3s;pointer-events:none;}
.toast.show{opacity:1;transform:translate(-50%,0);}
.toast.ok{background:#0a8f5d;}
.toast.err{background:#e03131;}

/* ===== 空态/加载 ===== */
.spinner{width:22px;height:22px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:inline-block;}
@keyframes spin{to{transform:rotate(360deg);}}
.muted{color:var(--text-3);}
.mt-10{margin-top:10px;}.mt-20{margin-top:20px;}.mt-30{margin-top:30px;}
.center{text-align:center;}
.pill-cta{text-align:center;margin-top:40px;}

/* ============================================================
   2.0 质感增强层 —— 视觉高级化升级
   渐变玻璃导航 / 辉光卡片 / 鎏金数字 / 极光深色面板
   ============================================================ */

/* --- 全局细节 --- */
::selection { background: rgba(22, 100, 255, .22); color: var(--navy); }
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: var(--bg-2); }
::-webkit-scrollbar-thumb { background: #c3cdde; border-radius: 999px; border: 2px solid var(--bg-2); }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

h1, h2, h3, h4 { letter-spacing: -.015em; }

/* --- 顶栏：收敛为更克制的深色 --- */
.topbar { background: linear-gradient(90deg, #07132b, #0c2350 55%, #0a1f44); font-size: 12.5px; }

/* --- 导航：高级玻璃质感 --- */
.header {
  background: rgba(255, 255, 255, .78);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border-bottom: 1px solid rgba(229, 232, 239, .8);
}
.header.scrolled {
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 10px 34px rgba(10, 31, 68, .08);
}
.logo .logo-mark {
  background: linear-gradient(135deg, #1664ff 0%, #3d82ff 60%, #4d8bff 100%);
  box-shadow: 0 8px 20px rgba(22, 100, 255, .38), inset 0 1px 0 rgba(255, 255, 255, .4);
}
.logo .logo-name b { background: linear-gradient(120deg, #0a1f44, #123a8f); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.nav-menu > li > a { font-weight: 600; }
.nav-menu > li > a::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 3px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, #1664ff, #4d8bff);
  transform: scaleX(0); transform-origin: left; transition: transform .28s cubic-bezier(.2, .8, .3, 1);
}
.nav-menu > li > a:hover::after, .nav-menu > li.active > a::after { transform: scaleX(1); }
.nav-right .user-chip { border: 1px solid var(--border); background: rgba(255, 255, 255, .8); backdrop-filter: blur(8px); }

/* --- 按钮：渐变 + 辉光 + 扫光 --- */
.btn { position: relative; overflow: hidden; }
.btn-primary {
  background: linear-gradient(135deg, #1664ff 0%, #3d82ff 55%, #4d8bff 100%);
  box-shadow: 0 12px 30px -8px rgba(22, 100, 255, .5), inset 0 1px 0 rgba(255, 255, 255, .32);
}
.btn-primary::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: -60%; width: 40%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .55), transparent);
  transform: skewX(-22deg); transition: left .8s cubic-bezier(.3, .8, .3, 1);
}
.btn-primary:hover::after { left: 130%; }
.btn-primary:hover { background: linear-gradient(135deg, #2a72ff 0%, #4d8bff 55%, #6b9dff 100%); box-shadow: 0 16px 38px -10px rgba(22, 100, 255, .6); }
.btn-accent { background: linear-gradient(135deg, #ffd55a, #f5c842 60%, #eeb422); box-shadow: 0 12px 30px -8px rgba(245, 200, 66, .5), inset 0 1px 0 rgba(255, 255, 255, .5); }
.btn-ghost { backdrop-filter: blur(6px); }

/* --- HERO：极光氛围 + 标题辉光 --- */
.hero::before {
  opacity: .85;
  background:
    radial-gradient(circle at 80% 12%, rgba(77, 139, 255, .5), transparent 44%),
    radial-gradient(circle at 12% 88%, rgba(245, 200, 66, .2), transparent 40%),
    radial-gradient(circle at 50% 120%, rgba(22, 100, 255, .35), transparent 55%);
}
.hero-copy h1 { letter-spacing: .01em; }
.hero-copy h1 .grad {
  background: linear-gradient(92deg, #8fb7ff 0%, #d6e4ff 35%, var(--accent) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 4px 26px rgba(143, 183, 255, .35));
}
.hero-eyebrow {
  background: rgba(22, 100, 255, .14);
  border: 1px solid rgba(77, 139, 255, .4);
  box-shadow: 0 0 24px rgba(22, 100, 255, .25), inset 0 0 14px rgba(22, 100, 255, .12);
}
.search-bar { border: 1px solid rgba(255, 255, 255, .6); }

/* --- 分区标题：kicker 胶囊化 --- */
.sec-head .kicker {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 16px; border-radius: 999px;
  background: var(--primary-soft); border: 1px solid rgba(22, 100, 255, .16);
  color: var(--primary); font-size: 12px; letter-spacing: 3px;
}
.sec-head h2 .grad {
  background: linear-gradient(92deg, #1664ff, #4d8bff 55%, #7aa8ff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* --- 特性卡片：顶部高光 + 悬浮辉光 --- */
.fcard { box-shadow: 0 1px 2px rgba(10, 31, 68, .04); }
.fcard::before {
  content: ""; position: absolute; top: 0; left: 12%; right: 12%; height: 1px; border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(22, 100, 255, .35), transparent);
  opacity: 0; transition: opacity .3s;
}
.fcard:hover::before { opacity: 1; }
.fcard:hover { box-shadow: 0 22px 48px -14px rgba(22, 100, 255, .22), 0 6px 18px rgba(10, 31, 68, .06); }
.fcard .ic { box-shadow: inset 0 1px 0 rgba(255, 255, 255, .7); }
.fcard .more { transition: gap .25s; }
.fcard .more:hover { gap: 10px; }
.ic-gold:hover { box-shadow: 0 22px 48px -14px rgba(245, 200, 66, .3), 0 6px 18px rgba(10, 31, 68, .06); }

/* --- 深色面板：极光底纹 --- */
.dark-panel { box-shadow: 0 30px 70px -20px rgba(8, 26, 58, .5); }
.dark-panel::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(circle at 88% 8%, rgba(77, 139, 255, .3), transparent 42%),
    radial-gradient(circle at 8% 92%, rgba(245, 200, 66, .14), transparent 38%);
}
.dark-panel > * { position: relative; z-index: 2; }

/* --- 统计数字：鎏金渐变 --- */
.stat-item .num {
  background: linear-gradient(160deg, #1664ff 10%, #4d8bff 60%, #7aa8ff 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 6px 16px rgba(22, 100, 255, .18));
}
.stat-white .stat-item .num {
  background: linear-gradient(160deg, #ffffff 20%, #d6e4ff 55%, #f5c842 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

/* --- Tab 胶囊 --- */
.tab-btn { border-radius: 999px; font-weight: 600; }
.tab-btn.active { background: linear-gradient(135deg, #1664ff, #4d8bff); box-shadow: 0 10px 26px -8px rgba(22, 100, 255, .55); }

/* --- 案例 / 媒体卡 --- */
.media-card { box-shadow: 0 1px 2px rgba(10, 31, 68, .04); }
.media-card:hover { box-shadow: 0 22px 48px -14px rgba(10, 31, 68, .2); }

/* --- 新闻行 --- */
.news-row { border-radius: 14px; }
.news-row:hover { box-shadow: 0 14px 36px -12px rgba(22, 100, 255, .18); }

/* --- 价格卡 --- */
.price-card.hot { border-color: transparent; background: linear-gradient(#fff, #fff) padding-box, linear-gradient(135deg, #1664ff, #4d8bff, #f5c842) border-box; border: 1px solid transparent; }

/* --- 页脚：顶部辉光 + 品牌氛围 --- */
.footer { position: relative; background: linear-gradient(180deg, #081a3a 0%, #060f22 100%); }
.footer-glow {
  position: absolute; top: -1px; left: 50%; transform: translateX(-50%);
  width: min(760px, 80%); height: 1px;
  background: linear-gradient(90deg, transparent, rgba(77, 139, 255, .75), rgba(245, 200, 66, .4), transparent);
}
.footer-glow::after {
  content: ""; position: absolute; top: 0; left: 50%; transform: translate(-50%, -100%);
  width: 100%; height: 120px; pointer-events: none;
  background: radial-gradient(ellipse at 50% 100%, rgba(22, 100, 255, .16), transparent 70%);
}

/* --- 时间线节点微光 --- */
.tl-item::before { box-shadow: 0 0 0 5px var(--primary-soft), 0 0 14px rgba(22, 100, 255, .35); }

/* --- 回到顶部 --- */
.gotop { border: 1px solid rgba(255, 255, 255, .25); }

/* --- Toast 玻璃 --- */
.toast { backdrop-filter: blur(10px); }
.toast.ok { background: rgba(10, 143, 93, .95); }
.toast.err { background: rgba(224, 49, 49, .95); }