/* ==========================================================================
   积米软件 · 天锐绿盾 / 天锐蓝盾 官网样式系统
   设计方向：大气品牌型落地页（蓝白科技 + 双主推产品视觉区分）
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --brand-900: #0a1f3d;
  --brand-800: #0f2d56;
  --brand-700: #143a6b;
  --brand-600: #1a4d8f;
  --brand-500: #1f5fb8;
  --brand-400: #3b82d4;
  --brand-300: #7cb0e8;
  --brand-100: #e3eefb;
  --brand-50:  #f2f7fd;

  --accent-lvdui: #1f5fb8;
  --accent-landun: #0d9488;

  --gold: #d4a548;
  --danger: #dc2626;
  --success: #16a34a;

  --ink-900: #0f172a;
  --ink-800: #1e293b;
  --ink-700: #334155;
  --ink-600: #475569;
  --ink-500: #64748b;
  --ink-400: #94a3b8;
  --ink-300: #cbd5e1;
  --ink-200: #e2e8f0;
  --ink-100: #f1f5f9;
  --ink-50:  #f8fafc;
  --white: #fff;

  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, .06);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, .08);
  --shadow-lg: 0 12px 36px rgba(15, 23, 42, .12);
  --shadow-brand: 0 10px 30px rgba(31, 95, 184, .22);

  --container: 1200px;
  --gutter: 24px;
  --section-y: 96px;
  --transition: .28s cubic-bezier(.4, 0, .2, 1);
}

/* ---------- 2. 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; line-height: 1.3; color: var(--ink-900); letter-spacing: -.02em; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

:focus-visible { outline: 3px solid var(--brand-400); outline-offset: 2px; border-radius: var(--r-sm); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

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

/* ---------- 3. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  font-family: var(--font-base);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary { background: linear-gradient(135deg, var(--brand-600), var(--brand-500)); color: var(--white); box-shadow: var(--shadow-brand); }
.btn-primary:hover { background: linear-gradient(135deg, var(--brand-700), var(--brand-600)); transform: translateY(-2px); }

.btn-outline { background: transparent; color: var(--brand-600); border-color: var(--brand-300); }
.btn-outline:hover { background: var(--brand-600); color: var(--white); border-color: var(--brand-600); }

.btn-ghost { background: rgba(255, 255, 255, .1); color: var(--white); border-color: rgba(255, 255, 255, .35); }
.btn-ghost:hover { background: rgba(255, 255, 255, .2); border-color: rgba(255, 255, 255, .6); }

.btn-light { background: var(--white); color: var(--brand-700); box-shadow: var(--shadow-md); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.btn-outline-light { background: transparent; color: var(--white); border-color: rgba(255, 255, 255, .5); }
.btn-outline-light:hover { background: rgba(255, 255, 255, .14); border-color: var(--white); }

.btn-lg { padding: 15px 32px; font-size: 16px; }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-block { display: flex; width: 100%; }

/* ---------- 4. 页头导航 ---------- */
.site-header { position: sticky; top: 0; z-index: 1000; background: var(--white); box-shadow: 0 1px 0 rgba(15, 23, 42, .06); }

.header-top { background: var(--brand-900); color: rgba(255, 255, 255, .8); font-size: 13px; }
.header-top-inner { display: flex; align-items: center; justify-content: space-between; height: 38px; }
.header-top-left i { color: var(--brand-300); margin-right: 6px; }
.ht-phone { color: var(--white); font-weight: 600; }
.ht-phone:hover { color: var(--brand-300); }
.ht-phone i { margin-right: 5px; }
.ht-sep { display: inline-block; width: 1px; height: 12px; background: rgba(255, 255, 255, .25); margin: 0 14px; vertical-align: middle; }
.ht-link:hover { color: var(--brand-300); }

.header-main { background: var(--white); }
.navbar { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.brand-logo { height: 42px; width: auto; }

.navbar-toggle {
  display: none; flex-direction: column; gap: 5px;
  width: 42px; height: 42px; padding: 10px;
  background: transparent; border: 1px solid var(--ink-200);
  border-radius: var(--r-sm); cursor: pointer;
}
.navbar-toggle .bar { display: block; height: 2px; background: var(--ink-700); border-radius: 2px; transition: var(--transition); }

.navbar-collapse { display: flex; align-items: center; flex: 1; justify-content: flex-end; gap: 20px; }
.navbar-nav { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-link { display: block; padding: 10px 14px; font-size: 15px; font-weight: 500; color: var(--ink-700); border-radius: var(--r-sm); }
.nav-link:hover, .nav-item.active > .nav-link { color: var(--brand-600); }
.nav-item.active > .nav-link { font-weight: 600; }
.caret { margin-left: 5px; font-size: 11px; opacity: .5; }

.dropdown {
  position: absolute; top: calc(100% + 6px); left: 0;
  min-width: 232px; padding: 8px;
  background: var(--white); border: 1px solid var(--ink-100);
  border-radius: var(--r-md); box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: all var(--transition); z-index: 10;
}
.nav-item:hover .dropdown, .nav-item:focus-within .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a { display: block; padding: 9px 14px; font-size: 14px; color: var(--ink-600); border-radius: var(--r-sm); }
.dropdown a:hover { background: var(--brand-50); color: var(--brand-600); }

.navbar-actions { display: flex; align-items: center; gap: 12px; }
.search-trigger {
  width: 40px; height: 40px; display: grid; place-items: center;
  background: transparent; border: 1px solid var(--ink-200);
  border-radius: var(--r-sm); color: var(--ink-600); cursor: pointer;
  transition: var(--transition);
}
.search-trigger:hover { border-color: var(--brand-400); color: var(--brand-600); }

.search-overlay {
  position: fixed; inset: 0;
  background: rgba(10, 31, 61, .96); backdrop-filter: blur(8px);
  display: grid; place-items: center;
  opacity: 0; visibility: hidden;
  transition: all var(--transition); z-index: 2000;
}
.search-overlay.open { opacity: 1; visibility: visible; }
.search-form { display: flex; gap: 12px; width: 100%; max-width: 640px; }
.search-form input {
  flex: 1; padding: 14px 20px; font-size: 16px; font-family: var(--font-base);
  border: 1px solid rgba(255, 255, 255, .2); border-radius: var(--r-md);
  background: rgba(255, 255, 255, .08); color: var(--white);
}
.search-form input::placeholder { color: rgba(255, 255, 255, .5); }
.search-form input:focus { outline: none; border-color: var(--brand-300); background: rgba(255, 255, 255, .14); }
.search-close {
  position: absolute; top: 32px; right: 32px;
  width: 44px; height: 44px; font-size: 30px; line-height: 1;
  background: transparent; border: none; color: var(--white); cursor: pointer;
}

/* ---------- 5. Hero 主视觉 ---------- */
.hero {
  position: relative; padding: 100px 0 88px;
  background: linear-gradient(160deg, var(--brand-900) 0%, var(--brand-800) 48%, var(--brand-700) 100%);
  overflow: hidden; color: var(--white);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-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: 60px 60px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 40%, transparent 100%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 40%, transparent 100%);
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(90px); }
.hero-glow-a { width: 520px; height: 520px; top: -140px; right: 8%; background: radial-gradient(circle, rgba(31, 95, 184, .55), transparent 70%); }
.hero-glow-b { width: 420px; height: 420px; bottom: -160px; left: 4%; background: radial-gradient(circle, rgba(13, 148, 136, .35), transparent 70%); }

.hero-inner { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero-content { max-width: 680px; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; margin-bottom: 26px;
  font-size: 13px; font-weight: 500; letter-spacing: .02em;
  color: var(--brand-100); background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .18); border-radius: 100px;
}
.hero-badge i { color: var(--gold); }

.hero-title { font-size: clamp(34px, 5vw, 58px); line-height: 1.18; color: var(--white); letter-spacing: -.03em; margin-bottom: 24px; }
.hero-title .hl {
  background: linear-gradient(100deg, #7dd3fc 0%, #5eead4 55%, #fbbf24 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-sub { font-size: clamp(15px, 1.6vw, 18px); line-height: 1.85; color: rgba(255, 255, 255, .82); margin-bottom: 36px; max-width: 620px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 52px; }

.hero-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding-top: 32px; border-top: 1px solid rgba(255, 255, 255, .13); }
.hero-metrics strong { display: block; font-size: clamp(26px, 3vw, 36px); font-weight: 800; color: var(--white); line-height: 1.1; letter-spacing: -.03em; }
.hero-metrics strong em { font-style: normal; font-size: .55em; }
.hero-metrics span { display: block; margin-top: 6px; font-size: 13px; color: rgba(255, 255, 255, .6); }

.hero-visual { display: grid; place-items: center; min-height: 400px; }
.shield-card { position: relative; width: 340px; height: 340px; display: grid; place-items: center; }
.shield-ring { position: absolute; inset: 0; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .12); animation: spin 28s linear infinite; }
.shield-ring::before, .shield-ring::after { content: ""; position: absolute; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .09); }
.shield-ring::before { inset: 34px; }
.shield-ring::after { inset: 68px; border-color: rgba(125, 211, 252, .2); }
@keyframes spin { to { transform: rotate(360deg); } }

.shield-core {
  position: relative; width: 150px; height: 150px;
  display: grid; place-items: center; font-size: 60px; color: var(--white);
  background: linear-gradient(140deg, rgba(31, 95, 184, .85), rgba(13, 148, 136, .75));
  border-radius: 50%;
  box-shadow: 0 0 70px rgba(59, 130, 212, .5), inset 0 0 40px rgba(255, 255, 255, .12);
  animation: pulse 3.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 70px rgba(59, 130, 212, .45), inset 0 0 40px rgba(255, 255, 255, .12); }
  50% { box-shadow: 0 0 100px rgba(94, 234, 212, .5), inset 0 0 50px rgba(255, 255, 255, .2); }
}
.shield-tag {
  position: absolute; display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 15px; font-size: 13px; font-weight: 500;
  color: var(--ink-800); background: rgba(255, 255, 255, .94);
  border-radius: 100px; box-shadow: var(--shadow-lg); white-space: nowrap;
}
.shield-tag i { color: var(--brand-600); font-size: 12px; }
.shield-tag-1 { top: 6px; left: 0; animation: float 5s ease-in-out infinite; }
.shield-tag-2 { top: 50%; right: -14px; animation: float 6.4s ease-in-out .5s infinite; }
.shield-tag-3 { bottom: 8px; left: 6px; animation: float 5.6s ease-in-out 1s infinite; }
.shield-tag-4 { top: 46%; left: -18px; animation: float 6s ease-in-out 1.5s infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-11px); } }

/* ---------- 6. 区块通用 ---------- */
.section { padding: var(--section-y) 0; }
.section-leak { background: var(--ink-50); }
.section-products { background: var(--white); }
.section-path { background: linear-gradient(180deg, var(--brand-50), var(--white)); }
.section-solution { background: var(--ink-50); }
.section-why { background: var(--white); }
.section-case { background: var(--ink-50); }
.section-news { background: var(--white); }
.section-faq { background: var(--ink-50); }

.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-eyebrow {
  display: inline-block; margin-bottom: 14px; padding: 5px 14px;
  font-size: 12.5px; font-weight: 600; letter-spacing: .1em;
  color: var(--brand-600); background: var(--brand-100);
  border-radius: 100px; text-transform: uppercase;
}
.section-title { font-size: clamp(25px, 3.4vw, 38px); margin-bottom: 16px; }
.section-lead { font-size: 16px; color: var(--ink-500); line-height: 1.85; }
.section-more { margin-top: 48px; text-align: center; }

/* ---------- 7. 泄露通道 ---------- */
.leak-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(268px, 1fr)); gap: 22px; }
.leak-card {
  padding: 30px 26px; background: var(--white);
  border: 1px solid var(--ink-100); border-radius: var(--r-lg);
  text-align: center; transition: all var(--transition);
}
.leak-card:hover { transform: translateY(-6px); border-color: var(--brand-300); box-shadow: var(--shadow-lg); }
.leak-card i {
  display: grid; place-items: center; width: 54px; height: 54px;
  margin: 0 auto 18px; font-size: 21px; color: var(--danger);
  background: rgba(220, 38, 38, .08); border-radius: 50%;
}
.leak-card h3 { font-size: 17px; margin-bottom: 8px; }
.leak-card p { font-size: 14px; color: var(--ink-500); line-height: 1.7; }

/* ---------- 8. 双产品主推 ---------- */
.product-split { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.product-panel {
  position: relative; padding: 40px 36px;
  background: var(--white); border: 1px solid var(--ink-100);
  border-radius: var(--r-xl); overflow: hidden; transition: all var(--transition);
}
.product-panel::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; }
.panel-lvdui::before { background: linear-gradient(90deg, var(--accent-lvdui), var(--brand-400)); }
.panel-landun::before { background: linear-gradient(90deg, var(--accent-landun), #14b8a6); }
.panel-lvdui:hover { border-color: var(--brand-300); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.panel-landun:hover { border-color: rgba(13, 148, 136, .4); box-shadow: var(--shadow-lg); transform: translateY(-4px); }

.panel-head {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px; padding-bottom: 22px; margin-bottom: 20px; border-bottom: 1px solid var(--ink-100);
}
.panel-brand { display: flex; align-items: center; gap: 15px; }
.panel-mark { display: grid; place-items: center; width: 52px; height: 52px; font-size: 23px; color: var(--white); border-radius: var(--r-md); }
.mark-lvdui { background: linear-gradient(135deg, var(--brand-700), var(--brand-500)); }
.mark-landun { background: linear-gradient(135deg, var(--accent-landun), #14b8a6); }
.panel-title { font-size: 24px; margin-bottom: 3px; }
.panel-slogan { font-size: 13px; color: var(--ink-500); margin: 0; }
.panel-more { font-size: 13.5px; font-weight: 500; color: var(--brand-600); white-space: nowrap; }

.panel-desc { font-size: 15px; line-height: 1.85; color: var(--ink-600); margin-bottom: 26px; }

.panel-features { display: flex; flex-direction: column; gap: 18px; margin-bottom: 26px; }
.feature { display: flex; gap: 14px; }
.feature > i {
  flex-shrink: 0; display: grid; place-items: center;
  width: 38px; height: 38px; font-size: 15px;
  color: var(--brand-600); background: var(--brand-50); border-radius: var(--r-sm);
}
.panel-landun .feature > i { color: var(--accent-landun); background: rgba(13, 148, 136, .08); }
.feature h4 { font-size: 15.5px; margin-bottom: 3px; }
.feature p { font-size: 13.5px; color: var(--ink-500); line-height: 1.65; margin: 0; }

.panel-version {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  padding-top: 20px; border-top: 1px dashed var(--ink-200);
  font-size: 13.5px; color: var(--ink-500);
}
.panel-version a { color: var(--brand-600); font-weight: 500; }
.panel-version a:hover { text-decoration: underline; }
.version-label { padding: 3px 10px; font-size: 12px; font-weight: 600; color: var(--ink-600); background: var(--ink-100); border-radius: 100px; }
.version-sep { color: var(--ink-300); }

/* ---------- 9. 落地路径 ---------- */
.path-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.path-step {
  padding: 30px 22px; background: var(--white);
  border: 1px solid var(--ink-100); border-radius: var(--r-lg);
  transition: all var(--transition);
}
.path-step:hover { border-color: var(--brand-300); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.step-no { display: block; margin-bottom: 14px; font-size: 30px; font-weight: 800; line-height: 1; color: var(--brand-100); letter-spacing: -.04em; transition: color var(--transition); }
.path-step:hover .step-no { color: var(--brand-400); }
.step-body h3 { font-size: 16.5px; margin-bottom: 8px; }
.step-body p { font-size: 13.5px; color: var(--ink-500); line-height: 1.7; margin: 0; }

/* ---------- 10. 行业方案 ---------- */
.solution-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.solution-card {
  position: relative; display: block; padding: 32px 26px;
  background: var(--white); border: 1px solid var(--ink-100);
  border-radius: var(--r-lg); overflow: hidden; transition: all var(--transition);
}
.solution-card:hover { transform: translateY(-6px); border-color: var(--brand-300); box-shadow: var(--shadow-lg); }
.solution-idx {
  position: absolute; top: 16px; right: 22px; font-size: 42px; font-weight: 800;
  color: var(--brand-50); letter-spacing: -.04em; transition: color var(--transition);
}
.solution-card:hover .solution-idx { color: var(--brand-100); }
.solution-card h3 { font-size: 17px; margin-bottom: 10px; padding-right: 42px; }
.solution-card p { font-size: 13.5px; color: var(--ink-500); line-height: 1.7; margin-bottom: 16px; }
.solution-link { font-size: 13.5px; font-weight: 600; color: var(--brand-600); }

/* ---------- 11. 为什么选我们 ---------- */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.why-intro .section-title, .why-intro .section-eyebrow { text-align: left; }
.why-points { margin: 28px 0 34px; }
.why-points li { display: flex; align-items: flex-start; gap: 11px; padding: 9px 0; font-size: 15px; color: var(--ink-600); }
.why-points i { color: var(--success); margin-top: 5px; font-size: 15px; }

.why-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.stat-card {
  display: flex; gap: 15px; padding: 26px 22px;
  background: var(--brand-50); border: 1px solid var(--brand-100);
  border-radius: var(--r-lg); transition: all var(--transition);
}
.stat-card:hover { background: var(--white); border-color: var(--brand-300); box-shadow: var(--shadow-md); }
.stat-icon {
  flex-shrink: 0; display: grid; place-items: center;
  width: 44px; height: 44px; font-size: 19px; color: var(--brand-600);
  background: var(--white); border-radius: var(--r-md); box-shadow: var(--shadow-sm);
}
.stat-body strong { display: block; font-size: 15.5px; margin-bottom: 5px; color: var(--ink-900); }
.stat-body span { font-size: 13px; color: var(--ink-500); line-height: 1.6; }

/* ---------- 12. 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.case-card {
  display: block; background: var(--white);
  border: 1px solid var(--ink-100); border-radius: var(--r-lg);
  overflow: hidden; transition: all var(--transition);
}
.case-card:hover { transform: translateY(-6px); border-color: var(--brand-300); box-shadow: var(--shadow-lg); }
.case-body { padding: 32px 28px; }
.case-cat {
  display: inline-block; padding: 4px 12px; margin-bottom: 16px;
  font-size: 12px; font-weight: 600; color: var(--brand-600);
  background: var(--brand-100); border-radius: 100px;
}
.case-card h3 { font-size: 18px; line-height: 1.45; margin-bottom: 12px; }
.case-card p { font-size: 14px; color: var(--ink-500); line-height: 1.75; margin-bottom: 20px; }
.case-link { font-size: 14px; font-weight: 600; color: var(--brand-600); }

/* ---------- 13. 资讯 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.news-col { padding: 28px 26px; background: var(--ink-50); border: 1px solid var(--ink-100); border-radius: var(--r-lg); }
.news-col-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; margin-bottom: 8px; border-bottom: 1px solid var(--ink-200); }
.news-col-head h3 { font-size: 17px; }
.news-col-head a { font-size: 13.5px; color: var(--ink-500); }
.news-col-head a:hover { color: var(--brand-600); }
.news-list li a { display: flex; align-items: baseline; justify-content: space-between; gap: 14px; padding: 11px 0; border-bottom: 1px dashed var(--ink-200); }
.news-list li:last-child a { border-bottom: none; }
.news-title { font-size: 14.5px; color: var(--ink-700); line-height: 1.6; transition: color var(--transition); }
.news-list a:hover .news-title { color: var(--brand-600); }
.news-date { flex-shrink: 0; font-size: 12.5px; color: var(--ink-400); }

/* ---------- 14. FAQ ---------- */
.faq-list { max-width: 880px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  padding: 28px 32px; background: var(--white);
  border: 1px solid var(--ink-100); border-left: 3px solid var(--brand-400);
  border-radius: var(--r-md); transition: all var(--transition);
}
.faq-item:hover { border-left-color: var(--brand-600); box-shadow: var(--shadow-md); }
.faq-item h3 { font-size: 17px; margin-bottom: 10px; }
.faq-item p { font-size: 14.5px; color: var(--ink-600); line-height: 1.85; margin: 0; }

/* ---------- 15. 内页横幅 ---------- */
.page-banner { padding: 62px 0 54px; background: linear-gradient(140deg, var(--brand-900), var(--brand-700)); color: var(--white); }
.page-banner nav { margin-bottom: 16px; font-size: 13.5px; color: rgba(255, 255, 255, .62); }
.page-banner nav a { color: rgba(255, 255, 255, .82); }
.page-banner nav a:hover { color: var(--white); text-decoration: underline; }
.page-banner nav span + span::before { content: " / "; color: rgba(255, 255, 255, .4); }
.page-banner-title { font-size: clamp(26px, 3.6vw, 40px); color: var(--white); margin-bottom: 12px; }
.page-banner-desc { max-width: 760px; font-size: 15.5px; color: rgba(255, 255, 255, .76); margin: 0; line-height: 1.8; }
.section-page { padding: 72px 0; }

/* ---------- 16. 内页布局 ---------- */
.page-layout { display: grid; grid-template-columns: 268px 1fr; gap: 40px; align-items: start; }
.detail-layout { display: grid; grid-template-columns: 1fr 300px; gap: 44px; align-items: start; }

.page-side, .detail-side { display: flex; flex-direction: column; gap: 22px; position: sticky; top: 132px; }
.side-card { padding: 26px 24px; background: var(--white); border: 1px solid var(--ink-100); border-radius: var(--r-lg); }
.side-title { font-size: 16.5px; padding-bottom: 14px; margin-bottom: 12px; border-bottom: 1px solid var(--ink-100); }
.side-links li a { display: block; padding: 9px 0; font-size: 14.5px; color: var(--ink-600); border-bottom: 1px dashed var(--ink-100); transition: all var(--transition); }
.side-links li:last-child a { border-bottom: none; }
.side-links li a:hover { color: var(--brand-600); padding-left: 6px; }
.side-points li { position: relative; padding: 6px 0 6px 18px; font-size: 14px; color: var(--ink-600); }
.side-points li::before { content: ""; position: absolute; left: 0; top: 15px; width: 5px; height: 5px; background: var(--brand-400); border-radius: 50%; }
.side-cta { background: var(--brand-50); border-color: var(--brand-100); }
.side-cta h3 { font-size: 16.5px; margin-bottom: 10px; }
.side-cta p { font-size: 14px; color: var(--ink-600); line-height: 1.7; margin-bottom: 16px; }
.side-cta .btn { margin-top: 8px; }
.side-tiny { margin: 12px 0 0 !important; font-size: 12.5px; color: var(--ink-400); }

/* ---------- 17. 富文本正文 ---------- */
.rich-text { font-size: 16px; line-height: 1.95; color: var(--ink-700); }
.rich-text > *:first-child { margin-top: 0; }
.rich-text p { margin-bottom: 1.15em; }

.rich-text .lead, .detail-lead {
  padding: 20px 24px; margin-bottom: 32px;
  font-size: 16.5px; line-height: 1.85; color: var(--ink-800);
  background: var(--brand-50);
  border-left: 3px solid var(--brand-500);
  border-radius: 0 var(--r-md) var(--r-md) 0;
}
.rich-text .lead strong, .detail-lead strong { color: var(--brand-700); }

.rich-text h2.hd {
  position: relative; padding-left: 16px; margin: 44px 0 20px;
  font-size: 22px; line-height: 1.5;
}
.rich-text h2.hd::before {
  content: ""; position: absolute; left: 0; top: 8px; bottom: 8px; width: 4px;
  background: linear-gradient(180deg, var(--brand-500), var(--brand-300));
  border-radius: 4px;
}
.rich-text h3 { margin: 32px 0 14px; font-size: 18px; }
.rich-text h4 { margin: 24px 0 12px; font-size: 16px; }

.rich-text ul.tick-list { margin: 0 0 1.5em; }
.rich-text ul.tick-list li { position: relative; padding: 7px 0 7px 26px; line-height: 1.85; }
.rich-text ul.tick-list li .dot { position: absolute; left: 4px; top: 17px; width: 6px; height: 6px; background: var(--brand-400); border-radius: 50%; }
.rich-text ul.tick-list li strong { color: var(--ink-900); }

.rich-text img, .detail-thumb { width: 100%; margin: 24px 0; border-radius: var(--r-md); box-shadow: var(--shadow-md); }
.rich-text a { color: var(--brand-600); border-bottom: 1px solid var(--brand-300); }
.rich-text a:hover { border-bottom-color: var(--brand-600); }
.rich-text table { width: 100%; margin: 24px 0; border-collapse: collapse; font-size: 14.5px; }
.rich-text th, .rich-text td { padding: 12px 14px; border: 1px solid var(--ink-200); text-align: left; }
.rich-text th { background: var(--ink-50); font-weight: 600; color: var(--ink-900); }
.rich-text code { padding: 2px 6px; font-size: .9em; background: var(--ink-100); border-radius: var(--r-sm); }

/* ---------- 18. 卡片网格 ---------- */
.card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.info-card { display: flex; background: var(--white); border: 1px solid var(--ink-100); border-radius: var(--r-lg); overflow: hidden; transition: all var(--transition); }
.info-card:hover { transform: translateY(-4px); border-color: var(--brand-300); box-shadow: var(--shadow-lg); }
.info-card-body { display: flex; flex-direction: column; width: 100%; padding: 28px 26px; }
.card-tag { align-self: flex-start; padding: 4px 11px; margin-bottom: 14px; font-size: 12px; font-weight: 600; color: var(--brand-600); background: var(--brand-100); border-radius: 100px; }
.card-title { font-size: 18px; line-height: 1.5; margin-bottom: 12px; }
.card-title a:hover { color: var(--brand-600); }
.card-desc { flex: 1; font-size: 14.5px; color: var(--ink-500); line-height: 1.8; margin-bottom: 20px; }
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding-top: 16px; border-top: 1px solid var(--ink-100); }
.card-date { font-size: 13px; color: var(--ink-400); }
.card-more { font-size: 14px; font-weight: 600; color: var(--brand-600); white-space: nowrap; }

.honor-card { align-items: center; }
.honor-icon {
  flex-shrink: 0; display: grid; place-items: center; width: 64px; align-self: stretch;
  font-size: 24px; color: var(--gold);
  background: linear-gradient(180deg, #fef9ec, #fdf3d8);
  border-right: 1px solid var(--ink-100);
}

.empty-box { padding: 72px 20px; text-align: center; color: var(--ink-400); }
.empty-box i { font-size: 40px; margin-bottom: 16px; opacity: .45; }
.empty-box p { margin: 0; font-size: 15px; }

/* ---------- 19. 子栏目卡片 ---------- */
.sub-category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.sub-cat-card { display: block; padding: 34px 28px; background: var(--white); border: 1px solid var(--ink-100); border-radius: var(--r-lg); transition: all var(--transition); }
.sub-cat-card:hover { transform: translateY(-6px); border-color: var(--brand-300); box-shadow: var(--shadow-lg); }
.sub-cat-icon { display: grid; place-items: center; width: 54px; height: 54px; margin-bottom: 20px; font-size: 21px; color: var(--brand-600); background: var(--brand-50); border-radius: var(--r-md); }
.sub-cat-card h3 { font-size: 18.5px; margin-bottom: 10px; }
.sub-cat-card p { font-size: 14px; color: var(--ink-500); line-height: 1.7; margin-bottom: 18px; }
.sub-cat-link { font-size: 14px; font-weight: 600; color: var(--brand-600); }
.page-intro { margin-top: 44px; padding-top: 36px; border-top: 1px solid var(--ink-100); }

/* ---------- 20. 详情页 ---------- */
.detail-main { min-width: 0; }
.detail-meta { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 18px; font-size: 13.5px; color: rgba(255, 255, 255, .68); }
.detail-meta i { margin-right: 6px; }

.detail-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 48px; padding-top: 30px; border-top: 1px solid var(--ink-100); }
.dn-item { padding: 18px 22px; background: var(--ink-50); border-radius: var(--r-md); }
.dn-label { display: block; margin-bottom: 6px; font-size: 12.5px; color: var(--ink-400); }
.dn-item a { font-size: 14.5px; color: var(--ink-700); }
.dn-item a:hover { color: var(--brand-600); }
.dn-next { text-align: right; }

.detail-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-top: 36px; }
.dt-label { font-size: 13.5px; color: var(--ink-400); }
.tag-chip { padding: 5px 13px; font-size: 13px; color: var(--ink-600); background: var(--ink-100); border-radius: 100px; }
.tag-chip:hover { color: var(--brand-600); background: var(--brand-100); }

/* ---------- 21. 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.contact-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.contact-card { padding: 32px 26px; background: var(--white); border: 1px solid var(--ink-100); border-radius: var(--r-lg); text-align: center; transition: all var(--transition); }
.contact-card:hover { transform: translateY(-5px); border-color: var(--brand-300); box-shadow: var(--shadow-lg); }
.cc-icon { display: grid; place-items: center; width: 56px; height: 56px; margin: 0 auto 18px; font-size: 22px; color: var(--brand-600); background: var(--brand-50); border-radius: 50%; }
.contact-card h3 { font-size: 16px; margin-bottom: 10px; color: var(--ink-500); font-weight: 500; }
.cc-main { font-size: 20px; font-weight: 700; color: var(--ink-900); margin-bottom: 8px; word-break: break-all; }
.cc-main a:hover { color: var(--brand-600); }
.cc-addr, .cc-sm { font-size: 16px; }
.cc-note { font-size: 13px; color: var(--ink-400); margin: 0; }
.contact-content .rich-text { margin-bottom: 28px; }

/* ---------- 22. 留言页 ---------- */
.guestbook-layout { display: grid; grid-template-columns: 1fr 300px; gap: 44px; align-items: start; }
.gb-side { display: flex; flex-direction: column; gap: 22px; position: sticky; top: 132px; }

/* ---------- 23. 页脚 ---------- */
.site-footer { background: var(--brand-900); color: rgba(255, 255, 255, .68); }

.footer-cta { padding: 54px 0; background: var(--brand-700); }
.footer-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 36px; flex-wrap: wrap; }
.cta-text h2 { font-size: clamp(22px, 2.8vw, 30px); color: var(--white); margin-bottom: 10px; }
.cta-text p { max-width: 620px; font-size: 15px; color: rgba(255, 255, 255, .78); margin: 0; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.footer-main { padding: 66px 0 52px; }
.footer-logo { height: 40px; width: auto; margin-bottom: 20px; }
.footer-desc { font-size: 14px; line-height: 1.85; margin-bottom: 22px; max-width: 340px; }
.footer-contact li { display: flex; align-items: flex-start; gap: 11px; padding: 6px 0; font-size: 14px; }
.footer-contact i { color: var(--brand-300); margin-top: 5px; width: 15px; }
.footer-contact a:hover { color: var(--white); }

.footer-title { position: relative; padding-bottom: 14px; margin-bottom: 14px; font-size: 16px; color: var(--white); }
.footer-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 2px; background: var(--brand-400); border-radius: 2px; }
.footer-links li a { display: block; padding: 6px 0; font-size: 14px; color: rgba(255, 255, 255, .62); transition: all var(--transition); }
.footer-links li a:hover { color: var(--white); padding-left: 5px; }

.footer-bottom { padding: 22px 0; border-top: 1px solid rgba(255, 255, 255, .09); text-align: center; font-size: 13px; color: rgba(255, 255, 255, .48); }
.copyright p { margin: 4px 0; }
.icp a:hover { color: var(--white); }

.back-to-top {
  position: fixed; right: 26px; bottom: 26px;
  width: 46px; height: 46px; display: grid; place-items: center;
  font-size: 17px; color: var(--white); background: var(--brand-600);
  border: none; border-radius: 50%; box-shadow: var(--shadow-brand);
  cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: all var(--transition); z-index: 900;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--brand-700); transform: translateY(-3px); }

/* ---------- 24. 响应式 ---------- */
@media (max-width: 1180px) {
  .solution-grid { grid-template-columns: repeat(3, 1fr); }
  .path-steps { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
  :root { --section-y: 72px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-content { max-width: none; }
  .hero-visual { display: none; }
  .product-split, .why-grid, .contact-grid, .page-layout, .detail-layout, .guestbook-layout { grid-template-columns: 1fr; }
  .page-side, .detail-side, .gb-side { position: static; }
  .card-grid { grid-template-columns: 1fr; }
  .news-grid, .case-grid { grid-template-columns: 1fr 1fr; }
  .detail-nav { grid-template-columns: 1fr; }
  .dn-next { text-align: left; }
}

@media (max-width: 900px) {
  .navbar-toggle { display: flex; }
  .navbar-collapse {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 0 var(--gutter); max-height: 0; overflow: hidden;
    background: var(--white); box-shadow: var(--shadow-lg);
    transition: max-height var(--transition), padding var(--transition);
  }
  .navbar-collapse.show { max-height: 78vh; overflow-y: auto; padding: 16px var(--gutter) 24px; }
  .navbar-nav { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-link { padding: 13px 4px; border-bottom: 1px solid var(--ink-100); }
  .dropdown {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none; border-left: 2px solid var(--ink-100);
    border-radius: 0; margin: 0 0 6px 12px; min-width: 0; display: none;
  }
  .nav-item:hover .dropdown { display: block; }
  .navbar-actions { padding-top: 18px; justify-content: flex-start; }
  .search-overlay .search-form { flex-direction: column; }
  .search-form .btn { width: 100%; }
}

@media (max-width: 768px) {
  :root { --section-y: 60px; --gutter: 20px; }
  .header-top-left span { display: none; }
  .hero { padding: 72px 0 64px; }
  .hero-metrics { grid-template-columns: 1fr 1fr; gap: 24px 18px; }
  .hero-actions .btn { flex: 1; min-width: 200px; }
  .leak-grid, .solution-grid, .path-steps, .news-grid, .case-grid,
  .why-stats, .contact-cards { grid-template-columns: 1fr; }
  .product-panel { padding: 30px 24px; }
  .panel-head { flex-direction: column; }
  .faq-item { padding: 22px 20px; }
  .rich-text .lead, .detail-lead { padding: 16px 18px; font-size: 15.5px; }
  .rich-text h2.hd { font-size: 20px; margin: 36px 0 16px; }
  .footer-cta-inner { flex-direction: column; align-items: flex-start; }
  .cta-actions { width: 100%; }
  .cta-actions .btn { flex: 1; }
  .back-to-top { right: 16px; bottom: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .site-header, .site-footer, .back-to-top, .search-overlay, .footer-cta { display: none !important; }
  body { color: #000; }
  .hero, .page-banner { background: none !important; color: #000 !important; }
  .hero-title, .page-banner-title { color: #000 !important; }
}
/* ==========================================================================
   26. 页脚栅格（自建，替代 Bootstrap 的 row / col-lg-*）
   ========================================================================== */
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(4, 1fr);
  gap: 40px 28px;
  align-items: start;
}

.footer-col { min-width: 0; }

/* ==========================================================================
   27. 搜索输入框（自建，替代 Bootstrap 的 form-control）
   ========================================================================== */
.search-input {
  flex: 1;
  width: 100%;
  padding: 14px 20px;
  font-size: 16px;
  font-family: var(--font-base);
  color: var(--white);
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: var(--r-md);
  transition: border-color var(--transition), background var(--transition);
}
.search-input::placeholder { color: rgba(255, 255, 255, .5); }
.search-input:focus {
  outline: none;
  border-color: var(--brand-300);
  background: rgba(255, 255, 255, .14);
}

/* ==========================================================================
   28. Bootstrap 兼容层
   说明：后台表单、第三方插件或未重写的旧模板可能仍输出 Bootstrap 类名，
   这里提供最小可用定义，避免出现"无样式裸奔"。作用域仅限这些类名，
   不会影响上面已建立的品牌设计系统。
   ========================================================================== */
.row { display: grid; grid-template-columns: repeat(12, 1fr); gap: 20px; }
.row > * { min-width: 0; }

.col-1  { grid-column: span 1; }   .col-2  { grid-column: span 2; }
.col-3  { grid-column: span 3; }   .col-4  { grid-column: span 4; }
.col-5  { grid-column: span 5; }   .col-6  { grid-column: span 6; }
.col-7  { grid-column: span 7; }   .col-8  { grid-column: span 8; }
.col-9  { grid-column: span 9; }   .col-10 { grid-column: span 10; }
.col-11 { grid-column: span 11; }  .col-12 { grid-column: span 12; }

.col-sm-6 { grid-column: span 6; }
.col-md-6 { grid-column: span 6; }
.col-lg-2 { grid-column: span 2; }
.col-lg-3 { grid-column: span 3; }
.col-lg-4 { grid-column: span 4; }
.col-lg-5 { grid-column: span 5; }
.col-lg-6 { grid-column: span 6; }
.col-lg-7 { grid-column: span 7; }
.col-lg-8 { grid-column: span 8; }
.col-lg-9 { grid-column: span 9; }
.col-lg-12 { grid-column: span 12; }
.col-xl-3 { grid-column: span 3; }
.col-xl-9 { grid-column: span 9; }

/* 通用工具类 */
.d-flex { display: flex; }
.d-block { display: block; }
.align-items-center { align-items: center; }
.align-items-start { align-items: flex-start; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-end { justify-content: flex-end; }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Bootstrap 间距工具类（兼容） */
.m-0 { margin: 0; }          .p-0 { padding: 0; }
.mb-0 { margin-bottom: 0; }  .mt-0 { margin-top: 0; }
.mb-2 { margin-bottom: .5rem; }  .mt-2 { margin-top: .5rem; }
.mb-3 { margin-bottom: 1rem; }   .mt-3 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1.5rem; } .mt-4 { margin-top: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }   .mt-5 { margin-top: 3rem; }
.p-3 { padding: 1rem; }      .p-4 { padding: 1.5rem; }  .p-5 { padding: 3rem; }

/* Bootstrap 表单控件（兼容后台输出） */
.form-control {
  display: block;
  width: 100%;
  padding: 10px 14px;
  font-size: 15px;
  font-family: var(--font-base);
  line-height: 1.5;
  color: var(--ink-900);
  background: var(--white);
  border: 1px solid var(--ink-300);
  border-radius: var(--r-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--brand-400);
  box-shadow: 0 0 0 3px rgba(59, 130, 212, .18);
}
textarea.form-control { min-height: 120px; resize: vertical; }
label { display: inline-block; margin-bottom: 6px; font-weight: 500; }

/* Bootstrap 表格（兼容） */
.table { width: 100%; border-collapse: collapse; margin-bottom: 1rem; }
.table th, .table td { padding: 12px 14px; border: 1px solid var(--ink-200); text-align: left; }
.table th { background: var(--ink-50); font-weight: 600; }
.table-striped tbody tr:nth-of-type(odd) { background: var(--ink-50); }

/* Bootstrap 徽标（兼容） */
.badge {
  display: inline-block;
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--brand-700);
  background: var(--brand-100);
  border-radius: 100px;
}

/* Bootstrap 标签页（兼容） */
.nav-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  border-bottom: 1px solid var(--ink-200);
  margin-bottom: 20px;
}
.nav-tabs > li > a {
  display: block;
  padding: 10px 16px;
  font-size: 14.5px;
  color: var(--ink-600);
  border: 1px solid transparent;
  border-radius: var(--r-sm) var(--r-sm) 0 0;
}
.nav-tabs > li > a:hover { color: var(--brand-600); }
.nav-tabs > li.active > a {
  color: var(--brand-700);
  background: var(--white);
  border-color: var(--ink-200) var(--ink-200) var(--white);
  font-weight: 600;
}

/* Bootstrap 按钮尺寸（补充） */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; }

/* ---------- 兼容层响应式 ---------- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: span 3; }
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px 22px; }
  .footer-brand { grid-column: span 2; }
  .row { grid-template-columns: 1fr; }
  .row > [class*="col-"] { grid-column: span 1 !important; }
}
/* 四栏页脚（品牌 + 绿盾 + 蓝盾 + 资讯） */
.footer-grid-4 { grid-template-columns: 1.8fr 1fr 1fr 1fr 1fr; }

@media (max-width: 1024px) {
  .footer-grid-4 { grid-template-columns: 1fr 1fr 1fr; }
  .footer-grid-4 .footer-brand { grid-column: span 3; }
}
@media (max-width: 768px) {
  .footer-grid-4 { grid-template-columns: 1fr 1fr; gap: 30px 22px; }
  .footer-grid-4 .footer-brand { grid-column: span 2; }
}

/* 联系页底部行动区 */
.contact-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
  padding-top: 30px;
  border-top: 1px solid var(--ink-100);
}
.cc-mail { font-size: 17px; word-break: break-all; }

/* 联系页底部行动区 */
.contact-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
  padding-top: 30px;
  border-top: 1px solid var(--ink-100);
}
.cc-mail { font-size: 17px; word-break: break-all; }

/* 详情页上一篇/下一篇：无内容时的置灰样式 */
.dn-none { color: var(--ink-400); cursor: default; }
.dn-none:hover { color: var(--ink-400); }

/* 分页组件 */
.pagination { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: center; margin-top: 40px; }
.pagination li { display: block; }
.pagination a, .pagination span {
  display: flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 12px;
  font-size: 14.5px; color: var(--ink-600);
  background: var(--white); border: 1px solid var(--ink-200);
  border-radius: var(--r-sm); transition: all var(--transition);
}
.pagination a:hover { color: var(--brand-600); border-color: var(--brand-400); }
.pagination .active span, .pagination .current span {
  color: var(--white); background: var(--brand-600); border-color: var(--brand-600); font-weight: 600;
}
.pagination .disabled span { color: var(--ink-300); background: var(--ink-50); cursor: not-allowed; }
.pagination-info { width: 100%; text-align: center; font-size: 13px; color: var(--ink-400); margin-top: 10px; }

/* 详情页上一篇/下一篇：无内容时的置灰样式 */
.dn-none { color: var(--ink-400); cursor: default; }
.dn-none:hover { color: var(--ink-400); }

/* 分页组件 */
.pagination { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: center; margin-top: 40px; }
.pagination li { display: block; }
.pagination a, .pagination span {
  display: flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 12px;
  font-size: 14.5px; color: var(--ink-600);
  background: var(--white); border: 1px solid var(--ink-200);
  border-radius: var(--r-sm); transition: all var(--transition);
}
.pagination a:hover { color: var(--brand-600); border-color: var(--brand-400); }
.pagination .active span, .pagination .current span {
  color: var(--white); background: var(--brand-600); border-color: var(--brand-600); font-weight: 600;
}
.pagination .disabled span { color: var(--ink-300); background: var(--ink-50); cursor: not-allowed; }
.pagination-info { width: 100%; text-align: center; font-size: 13px; color: var(--ink-400); margin-top: 10px; }

/* ==========================================================================
   29. 留言表单
   ========================================================================== */
.gb-card {
  padding: 36px 34px;
  background: var(--white);
  border: 1px solid var(--ink-100);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
}
.gb-title {
  font-size: 22px;
  padding-bottom: 18px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--ink-100);
}
.gb-form { display: flex; flex-direction: column; gap: 20px; }
.gb-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.gb-field { display: flex; flex-direction: column; min-width: 0; }
.gb-field label {
  margin-bottom: 8px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-800);
}
.gb-field label em {
  font-style: normal;
  color: var(--danger);
  margin-left: 2px;
}
.gb-field input,
.gb-field textarea {
  width: 100%;
  padding: 12px 15px;
  font-size: 15px;
  font-family: var(--font-base);
  line-height: 1.6;
  color: var(--ink-900);
  background: var(--white);
  border: 1px solid var(--ink-300);
  border-radius: var(--r-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.gb-field input::placeholder,
.gb-field textarea::placeholder { color: var(--ink-400); }
.gb-field input:focus,
.gb-field textarea:focus {
  outline: none;
  border-color: var(--brand-400);
  box-shadow: 0 0 0 3px rgba(59, 130, 212, .15);
}
.gb-field textarea { resize: vertical; min-height: 130px; }
.gb-tip { margin: 8px 0 0 !important; font-size: 13px; color: var(--ink-400); }

.gb-captcha-img { justify-content: flex-end; }
.gb-captcha-img img {
  height: 44px;
  border: 1px solid var(--ink-200);
  border-radius: var(--r-sm);
  cursor: pointer;
}

.gb-submit {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding-top: 22px;
  border-top: 1px solid var(--ink-100);
}
.gb-privacy { font-size: 13px; color: var(--ink-400); }

@media (max-width: 768px) {
  .gb-card { padding: 26px 20px; }
  .gb-row { grid-template-columns: 1fr; }
  .gb-captcha-img { justify-content: flex-start; }
  .gb-submit { flex-direction: column; align-items: stretch; }
  .gb-submit .btn { width: 100%; }
}