/* SynxiKey 官网主题 · 样式 v1.1 */
:root {
  --navy: #0b1b3a;
  --navy-2: #12306b;
  --ink: #16213a;
  --muted: #5f6b83;
  --muted-2: #8b95a9;
  --line: #e6eaf2;
  --bg: #ffffff;
  --soft: #f5f7fb;
  --soft-2: #edf1f8;
  --accent: #ff7a1a;
  --accent-2: #ff9a3c;
  --accent-deep: #e8640a;
  --accent-soft: #fff3e8;
  --blue: #2b6cf6;
  --blue-soft: #eaf1ff;
  --green: #1aa25a;
  --r-lg: 24px;
  --r: 16px;
  --r-sm: 12px;
  --shadow-sm: 0 1px 2px rgba(11, 27, 58, 0.04), 0 4px 14px rgba(11, 27, 58, 0.06);
  --shadow: 0 2px 6px rgba(11, 27, 58, 0.05), 0 18px 40px rgba(11, 27, 58, 0.10);
  --shadow-lg: 0 30px 80px rgba(11, 27, 58, 0.22);
  --container: 1120px;
  --header-h: 68px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg);
  line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "tnum" 1;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.2; letter-spacing: -0.02em; font-weight: 700; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }
svg { width: 1em; height: 1em; fill: currentColor; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: 820px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--navy); color: #fff; padding: 8px 12px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 24px; border-radius: 999px; font-weight: 600; font-size: 15px; line-height: 1.2;
  border: 1.5px solid transparent; white-space: nowrap; letter-spacing: 0.01em;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn small { font-weight: 500; font-size: 13px; opacity: .8; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent-2), var(--accent)); color: #fff;
  box-shadow: 0 10px 24px rgba(255, 122, 26, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.btn-primary:hover { box-shadow: 0 14px 30px rgba(255, 122, 26, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.25); }
.btn-dark { background: var(--navy); color: #fff; box-shadow: 0 10px 24px rgba(11, 27, 58, 0.22); }
.btn-dark:hover { background: var(--navy-2); }
.btn-outline { background: #fff; color: var(--navy); border-color: #cfd6e4; }
.btn-outline:hover { border-color: var(--navy); }
.btn-ghost { background: rgba(255, 255, 255, 0.06); color: #fff; border-color: rgba(255, 255, 255, 0.28); backdrop-filter: blur(6px); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.6); }
.btn-lg { padding: 16px 28px; font-size: 16px; }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-block { width: 100%; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  background: rgba(255, 255, 255, 0.82); backdrop-filter: saturate(180%) blur(14px); -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(11, 27, 58, 0.06);
}
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--navy); }
.brand-mark { width: 34px; height: 34px; border-radius: 9px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 17px; letter-spacing: -0.01em; }
.brand-text small { font-size: 11px; color: var(--muted-2); }
.nav { display: flex; gap: 30px; }
.nav a { color: var(--ink); font-weight: 500; font-size: 14.5px; opacity: .85; }
.nav a:hover { opacity: 1; color: var(--accent-deep); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.nav-toggle {
  display: none; width: 40px; height: 40px; border: 0; background: transparent; border-radius: 10px; padding: 9px;
  flex-direction: column; justify-content: center; gap: 5px;
}
.nav-toggle span { display: block; height: 2px; background: var(--navy); border-radius: 2px; transition: transform .2s, opacity .2s; }
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 首屏(浅色) ---------- */
.hero { position: relative; overflow: hidden; color: var(--ink); background: #fff; padding: 84px 0 92px; }
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(900px 520px at 88% 30%, rgba(43, 108, 246, 0.10) 0%, rgba(43, 108, 246, 0) 60%),
    radial-gradient(700px 480px at 4% 96%, rgba(255, 122, 26, 0.10) 0%, rgba(255, 122, 26, 0) 60%),
    linear-gradient(180deg, #ffffff 0%, #f7f9fd 100%);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0; opacity: .6;
  background-image: linear-gradient(rgba(11,27,58,0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(11,27,58,0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(70% 70% at 60% 50%, #000 20%, transparent 100%);
  mask-image: radial-gradient(70% 70% at 60% 50%, #000 20%, transparent 100%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1fr 1.05fr; gap: 56px; align-items: center; }
.pill {
  display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; letter-spacing: .04em;
  color: var(--accent-deep); background: var(--accent-soft); border: 1px solid #ffd9bd;
  padding: 7px 14px; border-radius: 999px; margin-bottom: 22px;
}
.pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px rgba(255, 122, 26, 0.18); }
.hero h1 { font-size: clamp(32px, 4.2vw, 54px); font-weight: 800; letter-spacing: -0.03em; line-height: 1.12; color: var(--navy); }
.hero h1 em { font-style: normal; color: var(--accent); }
.lead { font-size: 18px; line-height: 1.75; color: var(--muted); margin: 22px 0 32px; max-width: 520px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-ghost { background: #fff; color: var(--navy); border-color: #cfd6e4; }
.btn-ghost:hover { border-color: var(--navy); }
.trust { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 30px; }
.trust li { font-size: 14px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.trust li::before { content: ""; width: 16px; height: 16px; border-radius: 50%; background: rgba(26, 162, 90, 0.12); flex: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.3l2.2 2.2 4.8-4.8' fill='none' stroke='%231aa25a' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); }

.hero-visual { position: relative; }
.board-wrap { position: relative; padding: 18px 10px 18px 18px; }
.board-wrap::before {
  content: ""; position: absolute; inset: 16% 0 0 10%; border-radius: 40px;
  background: linear-gradient(135deg, rgba(43, 108, 246, 0.28), rgba(255, 122, 26, 0.22)); filter: blur(34px); opacity: .9;
}
.board-wrap img {
  position: relative; border-radius: 26px; transform: rotate(-2.5deg);
  box-shadow: 0 30px 70px rgba(11, 27, 58, 0.28), 0 6px 18px rgba(11, 27, 58, 0.12), 0 0 0 1px rgba(11, 27, 58, 0.06);
  transition: transform .6s ease;
}
.hero-visual:hover .board-wrap img { transform: rotate(-1deg); }
.chip {
  position: absolute; z-index: 2; display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, 0.92); color: var(--navy); font-size: 13px; font-weight: 600;
  padding: 8px 12px 8px 10px; border-radius: 999px; border: 1px solid rgba(11, 27, 58, 0.08);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); box-shadow: 0 10px 26px rgba(11, 27, 58, 0.14);
}
.chip::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 3px rgba(255, 122, 26, 0.18); }
.chip-a { top: 4%; left: 2%; }
.chip-b { top: 44%; right: -2%; }
.chip-c { bottom: 4%; left: 12%; }

/* ---------- 区块基础 ---------- */
.section { padding: 104px 0; }
.section-soft { background: var(--soft); }
.section-dark { background: linear-gradient(135deg, #0a1d45 0%, #12306b 100%); color: #fff; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.eyebrow { display: block; font-size: 13px; font-weight: 700; letter-spacing: .14em; color: var(--accent-deep); margin-bottom: 16px; }
.eyebrow-light { color: #ffb570; }
.section-head h2, .section-dark h2 { font-size: clamp(28px, 3.2vw, 40px); font-weight: 800; color: var(--navy); }
.section-dark h2 { color: #fff; }
.sub { color: var(--muted); font-size: 17px; margin-top: 16px; line-height: 1.7; }
.sub-light { color: rgba(255, 255, 255, 0.72); font-size: 17px; margin-top: 16px; line-height: 1.7; }

/* ---------- 选购卡 ---------- */
.choose-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: stretch; }
.choose {
  position: relative; overflow: hidden; background: #fff; border-radius: var(--r-lg); padding: 34px 32px 32px;
  border: 1px solid var(--line); box-shadow: var(--shadow-sm); display: flex; flex-direction: column; gap: 20px;
  transition: box-shadow .25s ease, transform .25s ease;
}
.choose:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.choose-a { border-top: 4px solid var(--accent); }
.choose-b { border-top: 4px solid var(--navy); }
.choose-letter {
  position: absolute; right: 18px; top: 2px; font-size: 128px; font-weight: 900; line-height: 1; letter-spacing: -0.06em;
  color: var(--navy); opacity: .04; pointer-events: none; user-select: none;
}
.choose-head { display: flex; gap: 16px; align-items: center; }
.choose-ico { flex: 0 0 60px; width: 60px; height: 60px; border-radius: 18px; display: grid; place-items: center; }
.choose-ico svg { width: 44px; height: 44px; }
.choose-ico-a { background: linear-gradient(135deg, #fff1e3, #ffe2c7); }
.choose-ico-b { background: linear-gradient(135deg, #e9f0ff, #d9e5ff); }
.choose-head h3 { font-size: 24px; font-weight: 800; color: var(--navy); }
.choose-desc { color: var(--muted); font-size: 14.5px; margin-top: 4px; }
.choose-how { display: flex; gap: 14px; align-items: flex-start; padding: 16px 18px; border-radius: var(--r); background: var(--accent-soft); }
.choose-b .choose-how { background: var(--blue-soft); }
.how-label {
  flex: none; margin-top: 2px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 800;
  padding: 5px 9px; border-radius: 8px; letter-spacing: .08em;
}
.choose-b .how-label { background: var(--navy); }
.choose-how strong { display: block; font-size: 17px; color: var(--navy); letter-spacing: -0.01em; }
.choose-how span { display: block; font-size: 14px; color: var(--muted); margin-top: 3px; line-height: 1.6; }
.price-list { display: flex; flex-direction: column; gap: 10px; }
.price-list li {
  display: flex; justify-content: space-between; align-items: center; gap: 14px;
  background: var(--soft); border-radius: var(--r-sm); padding: 15px 18px; border: 1px solid transparent; transition: border-color .2s;
}
.price-list li:hover { border-color: #d8e0ee; }
.price-name { font-weight: 700; font-size: 16px; display: flex; flex-direction: column; gap: 3px; color: var(--navy); }
.price-name small { font-weight: 400; font-size: 13px; color: var(--muted); line-height: 1.5; }
.price { color: var(--accent-deep); font-weight: 800; font-size: 32px; letter-spacing: -0.03em; white-space: nowrap; line-height: 1; }
.price i { font-style: normal; font-size: 16px; margin-right: 2px; font-weight: 700; vertical-align: 6px; }
.includes { display: flex; flex-direction: column; gap: 6px; }
.includes li { position: relative; padding-left: 26px; font-size: 15px; color: var(--ink); }
.includes li::before {
  content: ""; position: absolute; left: 0; top: 4px; width: 17px; height: 17px; border-radius: 50%; background: rgba(26, 162, 90, 0.12);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.3l2.2 2.2 4.8-4.8' fill='none' stroke='%231aa25a' stroke-width='1.9' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.tip { font-size: 14px; color: var(--muted); line-height: 1.65; padding: 12px 14px; border-left: 3px solid #d8e0ee; background: #fafbfd; border-radius: 0 10px 10px 0; }
.tip b { color: var(--navy); }
.choose .btn-block { margin-top: auto; padding: 16px 20px; font-size: 17px; }
.fine { text-align: center; color: var(--muted-2); font-size: 13px; margin-top: 26px; }

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; }
.flow::before { content: ""; position: absolute; left: 8%; right: 8%; top: 26px; height: 2px; background: linear-gradient(90deg, transparent, #cbd6ea 15%, #cbd6ea 85%, transparent); }
.flow li { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 22px 22px 24px; box-shadow: var(--shadow-sm); }
.flow-no {
  display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; margin: -48px auto 14px; position: relative;
  background: linear-gradient(135deg, var(--accent-2), var(--accent)); color: #fff; font-weight: 800; font-size: 20px;
  box-shadow: 0 8px 20px rgba(255, 122, 26, 0.35), 0 0 0 6px var(--soft);
}
.flow h3 { font-size: 18px; color: var(--navy); text-align: center; margin-bottom: 8px; }
.flow p { font-size: 14.5px; color: var(--muted); text-align: center; line-height: 1.65; }
.flow { padding-top: 26px; }

/* ---------- 功能 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 30px 28px; box-shadow: var(--shadow-sm); transition: transform .25s, box-shadow .25s; }
.feature:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.f-ico {
  width: 52px; height: 52px; border-radius: 16px; background: linear-gradient(135deg, #fff1e3, #ffe2c7); color: var(--accent-deep);
  display: grid; place-items: center; font-size: 24px; margin-bottom: 18px;
}
.feature h3 { font-size: 20px; color: var(--navy); margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 15px; line-height: 1.7; }
.notice {
  margin: 26px auto 0; max-width: 900px; display: flex; gap: 12px; align-items: flex-start;
  background: var(--soft); border-radius: var(--r); padding: 16px 20px; font-size: 14px; color: var(--muted); line-height: 1.7;
}
.notice b { flex: none; color: var(--navy); font-weight: 700; }

/* ---------- 先确认 ---------- */
.confirm-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.confirm-list { margin-top: 26px; display: flex; flex-direction: column; gap: 10px; }
.confirm-list li { padding-left: 30px; position: relative; font-size: 16px; color: rgba(255, 255, 255, 0.85); }
.confirm-list li::before {
  content: ""; position: absolute; left: 0; top: 3px; width: 20px; height: 20px; border-radius: 50%; background: var(--accent);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 8.3l2.2 2.2 4.8-4.8' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.confirm-list b { color: #fff; }
.confirm-card {
  background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.14); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-radius: var(--r-lg); padding: 34px 30px; text-align: center; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
}
.confirm-label { color: rgba(255, 255, 255, 0.6); font-size: 13px; font-weight: 700; letter-spacing: .12em; }
.confirm-wechat { font-size: 32px; font-weight: 800; color: #fff; margin: 8px 0 22px; letter-spacing: .01em; word-break: break-all; }
.confirm-hint { margin-top: 14px; font-size: 13px; color: rgba(255, 255, 255, 0.55); }

/* ---------- FAQ ---------- */
.faq { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 6px 28px; box-shadow: var(--shadow-sm); }
.faq details { border-bottom: 1px solid var(--line); }
.faq details:last-child { border-bottom: 0; }
.faq summary {
  cursor: pointer; list-style: none; padding: 20px 44px 20px 0; font-weight: 700; font-size: 16.5px; color: var(--navy); position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 2px; top: 50%; width: 22px; height: 22px; transform: translateY(-50%); border-radius: 50%;
  background: var(--soft-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 4v8M4 8h8' stroke='%230b1b3a' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E") center/14px no-repeat;
  transition: transform .2s;
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { padding: 0 0 20px; color: var(--muted); font-size: 15px; line-height: 1.75; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 28px; text-align: center; display: flex; flex-direction: column; gap: 12px; box-shadow: var(--shadow-sm); }
.c-label { color: var(--muted-2); font-size: 12.5px; font-weight: 700; letter-spacing: .12em; }
.c-value { font-size: 25px; font-weight: 800; color: var(--navy); word-break: break-all; letter-spacing: -0.01em; }
.c-hint { font-size: 13px; color: var(--muted); }
.contact-card-cta { justify-content: center; background: var(--soft); }

/* ---------- 页脚 ---------- */
.site-footer { background: #071634; color: rgba(255, 255, 255, 0.7); padding: 56px 0 120px; }
.footer-inner { display: grid; gap: 18px; }
.footer-brand { display: flex; flex-direction: column; gap: 4px; }
.footer-brand strong { color: #fff; font-size: 19px; letter-spacing: -0.01em; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a { color: rgba(255, 255, 255, 0.72); font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-copy { font-size: 13px; color: rgba(255, 255, 255, 0.4); display: flex; gap: 14px; flex-wrap: wrap; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, 0.08); }

/* ---------- 手机底栏 / 提示 ---------- */
.mobile-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; display: none; gap: 8px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom)); background: rgba(255, 255, 255, 0.94);
  border-top: 1px solid var(--line); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.mb-item { flex: 1; display: flex; align-items: center; justify-content: center; gap: 6px; height: 48px; border-radius: 14px; font-weight: 700; font-size: 15px; border: 0; background: var(--soft-2); color: var(--navy); }
.mb-item svg { font-size: 20px; }
.mb-item:first-child { flex: 0 0 88px; }
.mb-primary { background: linear-gradient(135deg, var(--accent-2), var(--accent)); color: #fff; box-shadow: 0 8px 18px rgba(255, 122, 26, 0.3); }
.mb-secondary { background: var(--navy); color: #fff; }
.toast {
  position: fixed; left: 50%; bottom: 100px; transform: translate(-50%, 10px); background: rgba(11, 27, 58, 0.94); color: #fff;
  padding: 10px 16px; border-radius: 12px; font-size: 14px; opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 70;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .55s ease, transform .55s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } .btn:hover, .choose:hover, .feature:hover { transform: none; } }

/* ---------- 文章 / 列表 / 错误页 ---------- */
.article { padding: 56px 0 72px; }
.article h1 { font-size: 34px; font-weight: 800; color: var(--navy); margin-bottom: 10px; }
.article .meta { color: var(--muted); font-size: 14px; margin-bottom: 30px; }
.article .content { font-size: 16.5px; line-height: 1.85; }
.article .content img { border-radius: 14px; margin: 18px 0; }
.article .content h2 { font-size: 24px; margin: 34px 0 12px; }
.article .content h3 { font-size: 20px; margin: 26px 0 10px; }
.article .content p { margin: 0 0 14px; }
.article .content pre { background: var(--soft); padding: 14px; border-radius: 10px; overflow-x: auto; }
.post-list { display: grid; gap: 12px; }
.post-list li { background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm); padding: 16px 18px; }
.post-list a { color: var(--navy); font-weight: 700; font-size: 17px; }
.post-list time { display: block; color: var(--muted); font-size: 13px; margin-top: 4px; }
.empty { color: var(--muted); text-align: center; padding: 40px 0; }
.error-page { text-align: center; padding: 100px 0; }
.error-page h1 { font-size: 64px; color: var(--navy); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero-grid { gap: 36px; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .flow::before { display: none; }
  .feature-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .confirm-grid { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 860px) {
  .nav {
    display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; gap: 0; padding: 8px 0; box-shadow: var(--shadow);
  }
  .nav a { padding: 13px 24px; }
  .nav-open .nav { display: flex; }
  .nav-toggle { display: flex; }
  .header-actions .btn { display: none; }
  .hero { padding: 48px 0 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .hero h1 { font-size: 31px; }
  .lead { font-size: 16px; margin: 16px 0 24px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .trust { gap: 8px 16px; margin-top: 22px; }
  .board-wrap { padding: 8px 0 12px; }
  .board-wrap img { border-radius: 20px; transform: rotate(-1.5deg); }
  .chip { font-size: 12px; padding: 6px 10px 6px 9px; }
  .chip-b { right: 0; }
  .section { padding: 64px 0; }
  .section-head { margin-bottom: 32px; }
  .sub, .sub-light { font-size: 15px; margin-top: 12px; }
  .choose-grid { grid-template-columns: 1fr; gap: 22px; }
  .choose { padding: 26px 20px 24px; gap: 16px; }
  .choose-letter { font-size: 96px; right: 12px; }
  .choose-head h3 { font-size: 22px; }
  .price { font-size: 28px; }
  .flow { grid-template-columns: 1fr; gap: 30px; }
  .notice { flex-direction: column; gap: 6px; }
  .faq { padding: 4px 18px; }
  .faq summary { font-size: 15.5px; padding: 16px 40px 16px 0; }
  .confirm-card { padding: 28px 22px; }
  .confirm-wechat { font-size: 28px; }
  .mobile-bar { display: flex; }
  .site-footer { padding: 44px 0 120px; }
}
@media (max-width: 380px) {
  .hero h1 { font-size: 28px; }
  .mb-item { font-size: 14px; }
}