/* =========================================================
   潮极引力 · 官网样式表
   西安潮极引力网络科技有限公司
   ========================================================= */

:root {
  --bg: #070b16;
  --bg-soft: #0b1120;
  --panel: #111a2e;
  --panel-2: #16203a;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #e9eefb;
  --muted: #8b98b8;
  --brand: #00d5ff;
  --brand-2: #7b5cff;
  --grad: linear-gradient(120deg, #00d5ff 0%, #7b5cff 100%);
  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 22px 48px -22px rgba(0, 0, 0, 0.85);
  --max: 1180px;
}

[data-theme="1"] { --t1: #0b3a63; --t2: #1a1f6b; }
[data-theme="2"] { --t1: #2a1050; --t2: #0f2a5c; }
[data-theme="3"] { --t1: #083b45; --t2: #123a7a; }
[data-theme="4"] { --t1: #3a1436; --t2: #161a56; }
[data-theme="5"] { --t1: #0d2f52; --t2: #2a1a5e; }
[data-theme="6"] { --t1: #123c34; --t2: #10306b; }

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { margin: 0 0 12px; line-height: 1.35; font-weight: 700; }
p { margin: 0 0 14px; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

input, select, textarea { font: inherit; color: inherit; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 120;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: rgba(7, 11, 22, 0.86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo { display: inline-flex; align-items: center; gap: 10px; }

.logo-mark {
  width: 38px; height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--grad);
  color: #05101f;
  font-weight: 800;
  font-size: 18px;
  box-shadow: 0 10px 24px -10px rgba(0, 213, 255, .8);
}

.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text strong { font-size: 17px; letter-spacing: .5px; }
.logo-text small { font-size: 10px; color: var(--muted); letter-spacing: 1.6px; }

.nav { display: flex; align-items: center; gap: 6px; }

.nav-link {
  position: relative;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--muted);
  border-radius: 8px;
  transition: color .25s, background .25s;
}

.nav-link:hover { color: var(--text); background: rgba(255, 255, 255, .05); }
.nav-link.active { color: var(--brand); }

.nav-link.active::after {
  content: '';
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--grad);
}

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: 10px;
  border: 1px solid var(--line);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}

.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform .25s, box-shadow .25s, border-color .25s, color .25s, background .25s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad);
  color: #04101f;
  box-shadow: 0 14px 32px -14px rgba(0, 213, 255, .85);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px -14px rgba(0, 213, 255, .95);
}

.btn-ghost {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, .03);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: rgba(0, 213, 255, .6);
  color: var(--brand);
  transform: translateY(-2px);
}

.btn-block { width: 100%; }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* ---------- 通用区块 ---------- */
.section { padding: 100px 0; position: relative; }
.section-tight { padding: 56px 0 88px; }
.section-alt { background: var(--bg-soft); }

.section-head { max-width: 680px; margin-bottom: 46px; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); letter-spacing: .4px; }
.section-head p { color: var(--muted); margin: 0; }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--brand);
  text-transform: uppercase;
  margin-bottom: 10px;
  font-weight: 700;
}

/* ---------- 首屏 ---------- */
.hero {
  position: relative;
  padding: 180px 0 110px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(720px 420px at 14% 8%, rgba(0, 213, 255, .16), transparent 62%),
    radial-gradient(620px 400px at 86% 18%, rgba(123, 92, 255, .20), transparent 62%);
}

.hero-bg::after {
  content: '';
  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: 58px 58px;
  -webkit-mask-image: radial-gradient(circle at 50% 34%, #000, transparent 74%);
  mask-image: radial-gradient(circle at 50% 34%, #000, transparent 74%);
}

.hero-inner { position: relative; z-index: 1; }

.hero-badge {
  display: inline-block;
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid rgba(0, 213, 255, .3);
  background: rgba(0, 213, 255, .07);
  color: var(--brand);
  font-size: 13px;
  margin-bottom: 22px;
}

.hero-title {
  font-size: clamp(34px, 6vw, 64px);
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.hero-desc {
  max-width: 620px;
  color: var(--muted);
  font-size: 17px;
  margin-bottom: 34px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 56px; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 18px;
  max-width: 760px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

.stat strong {
  display: block;
  font-size: 28px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat span { font-size: 13px; color: var(--muted); }

/* ---------- 企业介绍 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 34px;
  align-items: start;
}

.about-main p { color: #b9c3d8; }
.about-main strong { color: var(--text); }

.about-points { margin-top: 24px; display: grid; gap: 12px; }

.about-points li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: var(--panel);
  border: 1px solid var(--line);
  font-size: 15px;
}

.about-points span {
  font-weight: 800;
  font-size: 13px;
  color: var(--brand);
  letter-spacing: 1px;
}

.about-side { display: grid; gap: 16px; }

.about-card {
  padding: 22px;
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  transition: border-color .3s, transform .3s;
}

.about-card:hover { border-color: rgba(0, 213, 255, .4); transform: translateY(-3px); }
.about-card h3 { font-size: 17px; margin-bottom: 8px; }
.about-card p { color: var(--muted); font-size: 14px; margin: 0; }

/* ---------- 业务卡片 ---------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr));
  gap: 24px;
}

.service-card {
  padding: 30px 26px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
  transition: transform .3s, border-color .3s, box-shadow .3s;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 213, 255, .42);
  box-shadow: var(--shadow);
}

.service-icon {
  width: 52px; height: 52px;
  display: grid;
  place-items: center;
  font-size: 24px;
  border-radius: 14px;
  background: rgba(0, 213, 255, .08);
  border: 1px solid rgba(0, 213, 255, .18);
  margin-bottom: 18px;
}

.service-card h3 { font-size: 19px; }
.service-card > p { color: var(--muted); font-size: 14.5px; }

.service-card ul { display: grid; gap: 9px; margin-top: 16px; }

.service-card li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: #b9c3d8;
}

.service-card li::before {
  content: '';
  position: absolute;
  left: 0; top: 10px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--grad);
}

/* ---------- 案例卡片 ---------- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr));
  gap: 26px;
}

.case-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}

.case-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 213, 255, .48);
  box-shadow: var(--shadow);
}

.case-thumb {
  position: relative;
  height: 168px;
  background: linear-gradient(140deg, var(--t1, #0b3a63), var(--t2, #1a1f6b));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.case-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: .55;
}

.case-thumb::after {
  content: '';
  position: absolute;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 213, 255, .35), transparent 68%);
  top: -70px; right: -60px;
}

.case-type {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 2;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: #04101f;
  background: var(--grad);
}

.thumb-ui {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 7px;
}

.thumb-ui span {
  display: block;
  width: 36px; height: 58px;
  border-radius: 7px;
  background: rgba(255, 255, 255, .13);
  border: 1px solid rgba(255, 255, 255, .2);
  backdrop-filter: blur(2px);
}

.thumb-ui span:nth-child(2) { transform: translateY(-8px); }

.case-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.case-name { font-size: 18px; margin-bottom: 8px; }

.case-tagline {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 16px;
  flex: 1;
}

.case-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }

.tag {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 6px;
  color: #9fb0d4;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--line);
}

.case-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--muted);
}

.case-copy {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.case-more { color: var(--brand); font-weight: 600; flex-shrink: 0; }

.section-more { margin-top: 46px; text-align: center; }

.section-more-tip {
  margin-top: 14px;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 联系方式 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  align-items: start;
}

.contact-list { display: grid; gap: 14px; }

.contact-item {
  display: flex;
  gap: 16px;
  padding: 18px 20px;
  border-radius: var(--radius-sm);
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color .3s;
}

.contact-item:hover { border-color: rgba(0, 213, 255, .4); }

.contact-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  font-size: 19px;
  border-radius: 12px;
  background: rgba(0, 213, 255, .08);
  border: 1px solid rgba(0, 213, 255, .18);
}

.contact-item h4 { font-size: 14px; color: var(--muted); margin-bottom: 4px; font-weight: 600; }
.contact-item p { margin: 0; font-size: 15px; }
.contact-item a:hover { color: var(--brand); }

.contact-form {
  padding: 30px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
}

.contact-form h3 { font-size: 19px; margin-bottom: 20px; }

.form-row { margin-bottom: 16px; }

.form-row label {
  display: block;
  font-size: 13.5px;
  color: var(--muted);
  margin-bottom: 7px;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--line);
  outline: none;
  transition: border-color .25s, background .25s;
  resize: vertical;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: rgba(0, 213, 255, .6);
  background: rgba(0, 213, 255, .05);
}

.form-row select option { background: #111a2e; color: var(--text); }

.form-tip {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--brand);
  min-height: 20px;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: #050912;
  border-top: 1px solid var(--line);
  padding-top: 60px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 34px;
  padding-bottom: 44px;
}

.footer-brand p {
  margin-top: 16px;
  color: var(--muted);
  font-size: 14px;
}

.footer-col h4 { font-size: 15px; margin-bottom: 16px; }

.footer-col a,
.footer-col p {
  display: block;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 9px;
  transition: color .25s;
}

.footer-col a:hover { color: var(--brand); }

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
}

.footer-bottom p { margin: 0; }

.beian { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.beian a { color: var(--muted); transition: color .25s; }
.beian a:hover { color: var(--brand); }
.beian .sep { opacity: .45; }

/* ---------- 内页标题 ---------- */
.page-hero {
  position: relative;
  padding: 150px 0 60px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.page-hero-sm { padding: 130px 0 34px; }

.page-hero .container { position: relative; z-index: 1; }

.page-hero h1 {
  font-size: clamp(28px, 4.4vw, 44px);
  margin-bottom: 12px;
}

.page-hero p { color: var(--muted); margin: 0; max-width: 620px; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--muted);
  margin-bottom: 18px;
}

.breadcrumb a:hover { color: var(--brand); }
.breadcrumb .current { color: var(--text); }

/* ---------- 筛选栏 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.filter-tabs { display: flex; flex-wrap: wrap; gap: 10px; }

.filter-btn {
  padding: 9px 20px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--line);
  transition: all .25s;
}

.filter-btn:hover { color: var(--text); border-color: var(--line-strong); }

.filter-btn.active {
  color: #04101f;
  background: var(--grad);
  border-color: transparent;
  font-weight: 600;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 14px;
  font-size: 14px;
  opacity: .6;
  pointer-events: none;
}

.search-box input {
  width: 280px;
  padding: 11px 14px 11px 40px;
  border-radius: 999px;
  background: var(--panel);
  border: 1px solid var(--line);
  outline: none;
  font-size: 14px;
  transition: border-color .25s;
}

.search-box input:focus { border-color: rgba(0, 213, 255, .6); }

.result-count {
  font-size: 13.5px;
  color: var(--muted);
  margin-bottom: 26px;
}

/* ---------- 空状态 ---------- */
.empty-state {
  padding: 80px 20px;
  text-align: center;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px dashed var(--line-strong);
}

.empty-icon { font-size: 40px; margin-bottom: 14px; }
.empty-state h3 { font-size: 19px; }
.empty-state p { color: var(--muted); margin: 0; }

/* ---------- 案例详情 ---------- */
.detail-wrap { max-width: 960px; margin: 0 auto; }

.detail-head {
  padding: 34px;
  border-radius: var(--radius);
  background: linear-gradient(150deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  margin-bottom: 26px;
}

.detail-badge {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  color: #04101f;
  background: var(--grad);
  margin-bottom: 16px;
}

.detail-title {
  font-size: clamp(24px, 3.6vw, 34px);
  margin-bottom: 10px;
}

.detail-tagline { color: var(--muted); font-size: 15.5px; margin-bottom: 26px; }

.detail-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
  gap: 16px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.meta-item h4 {
  font-size: 12.5px;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 4px;
  letter-spacing: .5px;
}

.meta-item p { margin: 0; font-size: 14.5px; word-break: break-all; }

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.detail-actions .btn.is-loading { opacity: .7; pointer-events: none; }

.detail-section {
  padding: 30px 34px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
  margin-bottom: 26px;
}

.detail-section > h2 {
  font-size: 20px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.detail-section > h2::before {
  content: '';
  width: 4px;
  height: 18px;
  border-radius: 3px;
  background: var(--grad);
}

.detail-section p { color: #b9c3d8; }
.detail-section p:last-child { margin-bottom: 0; }

.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
  gap: 12px;
}

.feature-list li {
  display: flex;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .035);
  border: 1px solid var(--line);
  font-size: 14.5px;
  color: #c8d2e8;
}

.feature-list li::before {
  content: '✓';
  color: var(--brand);
  font-weight: 800;
  flex-shrink: 0;
}

.screen-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(200px, 100%), 1fr));
  gap: 20px;
}

.screen-card {
  border-radius: 14px;
  overflow: hidden;
  background: var(--panel-2);
  border: 1px solid var(--line);
  transition: transform .3s, border-color .3s;
}

.screen-card:hover { transform: translateY(-4px); border-color: rgba(0, 213, 255, .45); }

.screen-thumb {
  position: relative;
  height: 190px;
  background: linear-gradient(150deg, var(--t1, #0b3a63), var(--t2, #1a1f6b));
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  overflow: hidden;
}

.screen-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .055) 1px, transparent 1px);
  background-size: 22px 22px;
}

.screen-thumb .sk-bar,
.screen-thumb .sk-line,
.screen-thumb .sk-block,
.screen-thumb .sk-grid span {
  position: relative;
  z-index: 1;
}

.sk-bar {
  width: 46%;
  height: 9px;
  border-radius: 6px;
  background: rgba(255, 255, 255, .32);
}

.sk-block {
  height: 46px;
  border-radius: 9px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .16);
}

.sk-line {
  height: 7px;
  border-radius: 6px;
  background: rgba(255, 255, 255, .16);
}

.sk-line.w80 { width: 80%; }
.sk-line.w60 { width: 60%; }

.sk-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.sk-grid span {
  height: 30px;
  border-radius: 8px;
  background: rgba(255, 255, 255, .11);
  border: 1px solid rgba(255, 255, 255, .14);
}

.screen-meta { padding: 14px 16px 16px; }
.screen-meta h4 { font-size: 15px; margin-bottom: 4px; }
.screen-meta p { margin: 0; font-size: 13px; color: var(--muted); }

.copyright-box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  border-radius: 12px;
  background: rgba(0, 213, 255, .05);
  border: 1px solid rgba(0, 213, 255, .2);
}

.copyright-box .cb-label { font-size: 13px; color: var(--muted); }
.copyright-box .cb-value { font-size: 15px; font-weight: 600; }

.privacy-box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 22px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .035);
  border: 1px solid var(--line);
}

.privacy-box h4 { font-size: 15.5px; margin-bottom: 6px; }
.privacy-box p { margin: 0; font-size: 13.5px; color: var(--muted); }

.detail-back { max-width: 960px; margin: 34px auto 0; }

.detail-notfound {
  padding: 80px 24px;
  text-align: center;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px dashed var(--line-strong);
}

.detail-notfound h2 { font-size: 22px; }
.detail-notfound p { color: var(--muted); }

/* =========================================================
   隐私协议正文（外部富文本 HTML 片段）样式
   ========================================================= */

.privacy-content {
  font-size: 14.5px;
  line-height: 1.9;
  color: #b9c3d8;
}

.privacy-content h1,
.privacy-content h2 {
  font-size: 17px;
  color: var(--text);
  margin: 28px 0 10px;
  padding-left: 12px;
  position: relative;
}

.privacy-content h1:first-child,
.privacy-content h2:first-child { margin-top: 0; }

.privacy-content h1::before,
.privacy-content h2::before {
  content: '';
  position: absolute;
  left: 0; top: 7px;
  width: 3px; height: 16px;
  border-radius: 2px;
  background: var(--grad);
}

.privacy-content h3,
.privacy-content h4,
.privacy-content h5 {
  font-size: 15px;
  color: var(--text);
  margin: 18px 0 8px;
}

.privacy-content p {
  margin: 0 0 12px;
}

.privacy-content ul,
.privacy-content ol {
  margin: 0 0 14px;
  padding-left: 22px;
}

.privacy-content ul li {
  list-style: disc;
  margin-bottom: 6px;
}

.privacy-content ol li {
  list-style: decimal;
  margin-bottom: 6px;
}

.privacy-content strong { color: var(--text); }

.privacy-content a {
  color: var(--brand);
  text-decoration: underline;
}

.privacy-content code {
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 13px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--line);
  color: #cfe1ff;
}

.privacy-content blockquote {
  margin: 14px 0;
  padding: 12px 16px;
  border-left: 3px solid rgba(0, 213, 255, .5);
  background: rgba(0, 213, 255, .05);
  border-radius: 0 10px 10px 0;
}

.privacy-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 14px;
}

.privacy-content th,
.privacy-content td {
  padding: 10px 12px;
  border: 1px solid var(--line);
  text-align: left;
}

.privacy-content th {
  background: rgba(255, 255, 255, .04);
  color: var(--text);
}

.privacy-meta {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  color: var(--muted);
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--line);
  margin-bottom: 20px;
}

.privacy-loading,
.privacy-hint {
  color: var(--muted);
  font-size: 14px;
}

.privacy-error {
  color: #ff7a90;
  font-weight: 600;
}

/* ---------- 隐私协议弹窗（保留，供其他场景使用） ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal.is-open { display: flex; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 6, 14, .78);
  backdrop-filter: blur(4px);
}

.modal-panel {
  position: relative;
  z-index: 1;
  width: min(760px, 100%);
  max-height: 84vh;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
  animation: modalIn .25s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(14px) scale(.98); }
  to { opacity: 1; transform: none; }
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}

.modal-head h3 { margin: 0; font-size: 18px; }

.modal-close {
  width: 34px; height: 34px;
  border-radius: 9px;
  font-size: 22px;
  line-height: 1;
  color: var(--muted);
  border: 1px solid var(--line);
  transition: color .25s, border-color .25s;
}

.modal-close:hover { color: var(--text); border-color: var(--line-strong); }

.modal-body {
  padding: 24px;
  overflow-y: auto;
  font-size: 14.5px;
  color: #b9c3d8;
}

.modal-body h4 {
  font-size: 15px;
  color: var(--text);
  margin: 20px 0 8px;
}

.modal-body h4:first-child { margin-top: 0; }
.modal-body p { margin-bottom: 10px; }

.modal-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
  padding: 18px 24px;
  border-top: 1px solid var(--line);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  transform: translate(-50%, 24px);
  z-index: 300;
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 14px;
  color: #04101f;
  background: var(--grad);
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s, transform .3s;
  box-shadow: 0 16px 34px -14px rgba(0, 213, 255, .9);
}

.toast.is-show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 滚动显现 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s ease, transform .6s ease;
}

.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; }

  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  .nav-toggle { display: flex; }

  .nav {
    position: absolute;
    top: 72px;
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 14px;
    border-radius: var(--radius);
    background: rgba(11, 17, 32, .97);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity .25s, transform .25s, visibility .25s;
  }

  .nav.is-open { opacity: 1; visibility: visible; transform: none; }

  .nav-link { padding: 12px 14px; font-size: 15.5px; }
  .nav-link.active::after { display: none; }

  .section { padding: 72px 0; }
  .hero { padding: 140px 0 80px; }
  .page-hero { padding: 128px 0 46px; }

  .search-box { width: 100%; }
  .search-box input { width: 100%; }

  .detail-section,
  .detail-head { padding: 24px 20px; }

  .privacy-content h1,
  .privacy-content h2 { font-size: 16px; }
}

@media (max-width: 560px) {
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom-inner { flex-direction: column; align-items: flex-start; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .btn { padding: 12px 22px; font-size: 14.5px; }
  .contact-form { padding: 22px; }

  .privacy-content table { font-size: 13px; }
  .privacy-content th,
  .privacy-content td { padding: 8px 10px; }
}