/* ============================================
   Safe Startup 官方网站样式表
   配色基于 Logo：洋红 #C7459E + 白色
   风格：扁平 / 现代 / 专业
   ============================================ */

/* ---------- 设计令牌 ---------- */
:root {
  /* 品牌色 */
  --brand: #C7459E;
  --brand-dark: #A8357F;
  --brand-darker: #8B2A6A;
  --brand-light: #D957B0;
  --brand-pale: #F5D6EB;
  --brand-bg: #FDF2F8;
  --brand-bg-alt: #FAE6F2;

  /* 中性色 */
  --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;

  /* 功能色 */
  --success: #10B981;
  --success-bg: #D1FAE5;
  --warning: #F59E0B;
  --warning-bg: #FEF3C7;
  --danger: #EF4444;
  --danger-bg: #FEE2E2;

  /* 尺寸 */
  --container: 1200px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.10);
  --shadow-brand: 0 12px 32px rgba(199, 69, 158, 0.25);

  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", sans-serif;
  --font-mono: "SF Mono", Monaco, Consolas, "Liberation Mono", monospace;

  /* 过渡 */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-800);
  background: #FFFFFF;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; transition: color 0.2s var(--ease); }
a:hover { color: var(--brand-dark); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { padding-left: 1.25em; }

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.5em;
  color: var(--ink-900);
  font-weight: 700;
  line-height: 1.25;
}
h1 { font-size: clamp(28px, 4vw, 44px); letter-spacing: -0.02em; }
h2 { font-size: clamp(24px, 3vw, 34px); letter-spacing: -0.01em; }
h3 { font-size: clamp(18px, 2vw, 22px); }
h4 { font-size: 17px; }
p { margin: 0 0 1em; }

/* ---------- 容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 80px 0; }
.section-sm { padding: 56px 0; }
.section-bg { background: var(--ink-50); }
.section-brand { background: linear-gradient(135deg, var(--brand-bg) 0%, #FFFFFF 100%); }

/* 区块头 */
.section-head { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.section-head .eyebrow {
  display: inline-block;
  padding: 4px 14px;
  background: var(--brand-pale);
  color: var(--brand-dark);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}
.section-head h2 { margin-bottom: 14px; }
.section-head p { color: var(--ink-500); font-size: 17px; margin: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.2s var(--ease);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  border: 1.5px solid transparent;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary {
  background: var(--brand);
  color: #FFFFFF;
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover {
  background: var(--brand-dark);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(199, 69, 158, 0.32);
}
.btn-outline {
  background: #FFFFFF;
  color: var(--brand-dark);
  border-color: var(--ink-200);
}
.btn-outline:hover {
  border-color: var(--brand);
  color: var(--brand);
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  color: var(--ink-700);
}
.btn-ghost:hover { color: var(--brand); background: var(--brand-bg); }
.btn-lg { padding: 16px 32px; font-size: 17px; }
.btn-block { display: flex; width: 100%; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--ink-100);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.nav-brand img { height: 38px; }
.nav-brand .brand-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-900);
  letter-spacing: -0.01em;
}
.nav-brand .brand-sub {
  font-size: 11px;
  color: var(--ink-500);
  margin-top: 2px;
  font-weight: 500;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-700);
  border-radius: var(--radius-md);
  transition: all 0.2s var(--ease);
}
.nav-menu a:hover { color: var(--brand); background: var(--brand-bg); }
.nav-menu a.active { color: var(--brand); background: var(--brand-bg); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  color: var(--ink-700);
  align-items: center;
  justify-content: center;
}
.nav-toggle svg { width: 24px; height: 24px; }

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 16px 20px;
    background: #FFFFFF;
    border-bottom: 1px solid var(--ink-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-110%);
    transition: transform 0.3s var(--ease);
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu a { padding: 12px 16px; border-radius: var(--radius-md); }
  .nav-actions .btn-outline { display: none; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 80px 0 96px;
  background: linear-gradient(180deg, var(--brand-bg) 0%, #FFFFFF 100%);
}
.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(199, 69, 158, 0.18) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -180px;
  left: -100px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(168, 53, 127, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 6px;
  background: #FFFFFF;
  border: 1px solid var(--brand-pale);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--brand-dark);
  font-weight: 600;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.hero-badge .tag {
  background: var(--brand);
  color: #FFFFFF;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  font-size: 11px;
}
.hero h1 { margin-bottom: 20px; }
.hero h1 .grad {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  font-size: 18px;
  color: var(--ink-600);
  margin-bottom: 32px;
  max-width: 540px;
}
.hero-stats {
  display: flex;
  gap: 32px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.hero-stat .num {
  font-size: 28px;
  font-weight: 800;
  color: var(--ink-900);
  letter-spacing: -0.02em;
}
.hero-stat .num .unit { font-size: 16px; color: var(--brand); margin-left: 4px; }
.hero-stat .label { font-size: 13px; color: var(--ink-500); }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-trust {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
  font-size: 13px;
  color: var(--ink-500);
  flex-wrap: wrap;
}
.hero-trust .dot { color: var(--ink-300); }

.hero-visual {
  position: relative;
}
.hero-shot {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--ink-200);
  background: #FFFFFF;
}
.hero-float {
  position: absolute;
  background: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--ink-100);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
}
.hero-float .ic {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
}
.hero-float-1 { top: -24px; left: -32px; animation: float 4s ease-in-out infinite; }
.hero-float-2 { bottom: 24px; right: -28px; animation: float 4s ease-in-out infinite 1.5s; }
.hero-float-3 { bottom: -24px; left: 32px; animation: float 4s ease-in-out infinite 0.7s; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; }
  .hero-float-1 { left: 8px; }
  .hero-float-2 { right: 8px; }
}

/* ---------- 特性卡 ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: #FFFFFF;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all 0.25s var(--ease);
}
.feature-card:hover {
  border-color: var(--brand-pale);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.feature-card .ic {
  width: 56px; height: 56px;
  background: var(--brand-bg);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.feature-card h3 { margin-bottom: 10px; }
.feature-card p { color: var(--ink-600); font-size: 15px; margin: 0; }

@media (max-width: 900px) { .feature-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .feature-grid { grid-template-columns: 1fr; } }

/* ---------- 大特性块（左右图文） ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.split.reverse .split-text { order: 2; }
.split-text h2 { margin-bottom: 16px; }
.split-text .lead { font-size: 17px; color: var(--ink-600); margin-bottom: 24px; }
.split-text ul.check-list { list-style: none; padding: 0; margin: 0 0 28px; }
.split-text ul.check-list li {
  position: relative;
  padding: 8px 0 8px 36px;
  color: var(--ink-700);
}
.split-text ul.check-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 12px;
  width: 22px; height: 22px;
  background: var(--success-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2310B981' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/14px no-repeat;
  border-radius: 50%;
}
.split-visual img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--ink-200);
}
@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; gap: 32px; }
  .split.reverse .split-text { order: 0; }
}

/* ---------- 使用场景 ---------- */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.scene-card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: 32px;
  overflow: hidden;
  transition: all 0.25s var(--ease);
}
.scene-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brand) 0%, var(--brand-light) 100%);
  opacity: 0;
  transition: opacity 0.25s var(--ease);
}
.scene-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.scene-card:hover::before { opacity: 1; }
.scene-card .scene-ic {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  background: var(--brand-bg);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.scene-card h3 { margin-bottom: 8px; font-size: 19px; }
.scene-card p { color: var(--ink-600); font-size: 14.5px; margin: 0 0 14px; }
.scene-card .scene-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.scene-card .scene-tags span {
  font-size: 12px;
  padding: 3px 10px;
  background: var(--ink-50);
  color: var(--ink-600);
  border-radius: var(--radius-pill);
}
@media (max-width: 720px) { .scene-grid { grid-template-columns: 1fr; } }

/* ---------- 用户评价 ---------- */
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testi-card {
  background: #FFFFFF;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: all 0.25s var(--ease);
}
.testi-card:hover { border-color: var(--brand-pale); box-shadow: var(--shadow-md); }
.testi-stars {
  color: #FBBF24;
  font-size: 16px;
  letter-spacing: 2px;
  margin-bottom: 14px;
}
.testi-text {
  font-size: 15px;
  color: var(--ink-700);
  line-height: 1.7;
  margin-bottom: 20px;
  flex: 1;
}
.testi-user { display: flex; align-items: center; gap: 12px; }
.testi-user img { width: 44px; height: 44px; border-radius: 50%; }
.testi-user .name { font-weight: 600; color: var(--ink-900); font-size: 14px; }
.testi-user .role { color: var(--ink-500); font-size: 12px; }
@media (max-width: 900px) { .testi-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .testi-grid { grid-template-columns: 1fr; } }

/* ---------- 大数据条 ---------- */
.stat-band {
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  color: #FFFFFF;
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.stat-band::before {
  content: '';
  position: absolute;
  top: -50%; right: -10%;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
  border-radius: 50%;
}
.stat-item { position: relative; }
.stat-item .num { font-size: 38px; font-weight: 800; letter-spacing: -0.02em; }
.stat-item .num .unit { font-size: 18px; opacity: 0.9; margin-left: 4px; }
.stat-item .label { font-size: 14px; opacity: 0.9; margin-top: 6px; }
@media (max-width: 720px) { .stat-band { grid-template-columns: 1fr 1fr; padding: 32px 24px; } }

/* ---------- CTA 横幅 ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--brand-bg) 0%, var(--brand-bg-alt) 100%);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band h2 { margin-bottom: 14px; }
.cta-band p { color: var(--ink-600); font-size: 17px; max-width: 600px; margin: 0 auto 28px; }
.cta-band .btn-group { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- 下载弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.25s var(--ease);
}
.modal-mask.open { display: flex; opacity: 1; }
.modal {
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 720px;
  max-height: 92vh;
  overflow: auto;
  position: relative;
  transform: translateY(20px) scale(0.98);
  transition: transform 0.3s var(--ease);
  box-shadow: var(--shadow-lg);
}
.modal-mask.open .modal { transform: translateY(0) scale(1); }
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--ink-100);
  color: var(--ink-600);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s var(--ease);
  z-index: 2;
}
.modal-close:hover { background: var(--ink-200); color: var(--ink-900); }
.modal-close svg { width: 18px; height: 18px; }
.modal-head {
  padding: 36px 40px 20px;
  text-align: center;
  background: linear-gradient(180deg, var(--brand-bg) 0%, #FFFFFF 100%);
}
.modal-head .logo-circle {
  width: 64px; height: 64px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);
  margin: 0 auto 16px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-brand);
}
.modal-head .logo-circle img { width: 40px; height: 40px; }
.modal-head h3 { font-size: 24px; margin: 0 0 6px; }
.modal-head .ver { color: var(--ink-500); font-size: 14px; }
.modal-body { padding: 2px 40px 36px; }
.modal-info {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  background: var(--ink-50);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 28px;
  text-align: center;
}
.modal-info .item .v { font-size: 15px; font-weight: 700; color: var(--ink-900); }
.modal-info .item .l { font-size: 12px; color: var(--ink-500); margin-top: 2px; }
.qr-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.qr-card {
  border: 1.5px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  text-align: center;
  transition: all 0.2s var(--ease);
}
.qr-card:hover { border-color: var(--brand); box-shadow: var(--shadow-md); }
.qr-card .qr-img {
  width: 180px; height: 180px;
  margin: 0 auto 14px;
  padding: 10px;
  background: #FFFFFF;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-md);
}
.qr-card .qr-img img { width: 100%; height: 100%; }
.qr-card .ch-name { font-size: 15px; font-weight: 700; color: var(--ink-900); margin-bottom: 4px; }
.qr-card .ch-desc { font-size: 12px; color: var(--ink-500); }
.qr-card .ch-badge {
  display: inline-block;
  margin-top: 8px;
  padding: 2px 8px;
  background: var(--brand-bg);
  color: var(--brand-dark);
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-pill);
}
.qr-card.mirror .ch-badge { background: var(--success-bg); color: var(--success); }
.modal-tip {
  margin-top: 24px;
  padding: 14px 18px;
  background: var(--warning-bg);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: #92400E;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.modal-tip svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }

@media (max-width: 600px) {
  .modal-head { padding: 28px 20px 16px; }
  .modal-body { padding: 20px; }
  .modal-info { grid-template-columns: 1fr 1fr; }
  .qr-grid { grid-template-columns: 1fr; }
}

/* ---------- 页面横幅 ---------- */
.page-hero {
  background: linear-gradient(180deg, var(--brand-bg) 0%, #FFFFFF 100%);
  padding: 64px 0 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(199,69,158,0.12) 0%, transparent 70%);
  border-radius: 50%;
}
.page-hero .container { position: relative; }
.breadcrumb {
  font-size: 13px;
  color: var(--ink-500);
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--ink-500); }
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb .sep { margin: 0 8px; color: var(--ink-300); }
.page-hero h1 { margin-bottom: 14px; }
.page-hero p { color: var(--ink-600); font-size: 17px; max-width: 680px; margin: 0 auto; }

/* ---------- 下载中心 ---------- */
.dl-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: start;
}
.dl-main {
  background: #FFFFFF;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.dl-main h2 { font-size: 22px; margin-bottom: 8px; }
.dl-main .sub { color: var(--ink-500); margin-bottom: 24px; }
.dl-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  transition: all 0.2s var(--ease);
}
.dl-row:hover { border-color: var(--brand-pale); box-shadow: var(--shadow-sm); }
.dl-row .left { display: flex; align-items: center; gap: 16px; }
.dl-row .ic { width: 48px; height: 48px; background: var(--brand-bg); border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center; }
.dl-row .ic img { width: 28px; height: 28px; }
.dl-row .name { font-weight: 700; color: var(--ink-900); }
.dl-row .meta { font-size: 13px; color: var(--ink-500); margin-top: 2px; }

.dl-aside { display: flex; flex-direction: column; gap: 20px; }
.aside-card {
  background: #FFFFFF;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
  padding: 28px;
}
.aside-card h3 { font-size: 17px; margin-bottom: 16px; }
.aside-card.info-list { list-style: none; padding: 0; margin: 0; }
.aside-card .info-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--ink-100);
  font-size: 14px;
}
.aside-card .info-row:last-child { border-bottom: none; }
.aside-card .info-row .k { color: var(--ink-500); }
.aside-card .info-row .v { color: var(--ink-900); font-weight: 600; }
.aside-card.sha-list {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-600);
  word-break: break-all;
}
.aside-card.note { background: linear-gradient(135deg, var(--brand-bg) 0%, #FFFFFF 100%); }
.aside-card.note h3 { color: var(--brand-dark); }

@media (max-width: 900px) { .dl-layout { grid-template-columns: 1fr; } }

/* ---------- FAQ ---------- */
.faq-list { max-width: 880px; margin: 0 auto; }
.faq-item {
  background: #FFFFFF;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all 0.2s var(--ease);
}
.faq-item:hover { border-color: var(--brand-pale); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-900);
}
.faq-q .ic {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--brand-bg);
  color: var(--brand-dark);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  transition: transform 0.3s var(--ease);
}
.faq-item.open .faq-q .ic { transform: rotate(45deg); background: var(--brand); color: #FFFFFF; }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s var(--ease);
}
.faq-item.open .faq-a { max-height: 600px; }
.faq-a-inner { padding: 0 24px 22px; color: var(--ink-600); font-size: 15px; line-height: 1.75; }
.faq-a-inner p:last-child { margin-bottom: 0; }
.faq-a-inner ul { margin: 8px 0; }
.faq-a-inner code {
  background: var(--ink-100);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--brand-dark);
}

/* ---------- 步骤 ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.steps::before {
  content: '';
  position: absolute;
  top: 32px; left: 12%; right: 12%;
  height: 2px;
  background: var(--brand-pale);
  z-index: 0;
}
.step { position: relative; z-index: 1; text-align: center; }
.step .num {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 2px solid var(--brand-pale);
  color: var(--brand);
  font-size: 22px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
  transition: all 0.25s var(--ease);
}
.step:hover .num { background: var(--brand); color: #FFFFFF; border-color: var(--brand); transform: translateY(-4px); }
.step h4 { margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--ink-600); margin: 0; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr 1fr; } .steps::before { display: none; } }
@media (max-width: 500px) { .steps { grid-template-columns: 1fr; } }

/* ---------- 对比表 ---------- */
.compare-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--ink-100);
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  background: #FFFFFF;
}
.compare-table th, .compare-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--ink-100);
}
.compare-table thead th {
  background: var(--ink-50);
  font-size: 14px;
  color: var(--ink-700);
  font-weight: 700;
}
.compare-table tbody tr:hover { background: var(--brand-bg); }
.compare-table .col-feat { font-weight: 600; color: var(--ink-900); }
.compare-table .yes { color: var(--success); font-weight: 700; }
.compare-table .no { color: var(--ink-400); }
.compare-table .col-ours { background: var(--brand-bg); }

/* ---------- 关于页面 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.value-card {
  text-align: center;
  padding: 32px 24px;
  background: #FFFFFF;
  border: 1px solid var(--ink-100);
  border-radius: var(--radius-lg);
}
.value-card .ic {
  width: 64px; height: 64px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--brand-bg);
  display: flex; align-items: center; justify-content: center;
}
.value-card h4 { margin-bottom: 8px; }
.value-card p { font-size: 14px; color: var(--ink-600); margin: 0; }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; } .value-grid { grid-template-columns: 1fr; } }

.timeline { max-width: 760px; margin: 0 auto; position: relative; padding-left: 32px; }
.timeline::before {
  content: ''; position: absolute; left: 8px; top: 8px; bottom: 8px;
  width: 2px; background: var(--brand-pale);
}
.tl-item { position: relative; padding-bottom: 32px; }
.tl-item::before {
  content: ''; position: absolute; left: -32px; top: 4px;
  width: 18px; height: 18px;
  background: #FFFFFF;
  border: 3px solid var(--brand);
  border-radius: 50%;
}
.tl-item .date { font-size: 13px; color: var(--brand); font-weight: 700; }
.tl-item h4 { margin: 4px 0 6px; }
.tl-item p { color: var(--ink-600); margin: 0; font-size: 15px; }

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--ink-900);
  color: var(--ink-300);
  padding: 64px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .nav-brand .brand-text { color: #FFFFFF; }
.footer-brand .nav-brand .brand-sub { color: var(--ink-400); }
.footer-brand p { color: var(--ink-400); font-size: 14px; margin-top: 14px; max-width: 320px; }
.footer-col h5 {
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  color: var(--ink-400);
  font-size: 14px;
  transition: color 0.2s var(--ease);
}
.footer-col a:hover { color: #FFFFFF; }
.footer-bottom {
  border-top: 1px solid var(--ink-800);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--ink-500);
}
.footer-bottom .links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-bottom a { color: var(--ink-500); }
.footer-bottom a:hover { color: var(--ink-200); }
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .footer-grid { grid-template-columns: 1fr; } }

/* ---------- 工具类 ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-8 { margin-top: 32px; }
.hidden-mobile { display: initial; }
@media (max-width: 720px) { .hidden-mobile { display: none; } }

/* ---------- 滚动浮现 ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: all 0.6s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- 减少动画偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}