:root {
  /* 蓝色 — 同色相、不同明度 */
  --blue-50:  oklch(0.985 0.012 235);
  --blue-100: oklch(0.965 0.022 235);
  --blue-200: oklch(0.92  0.045 235);
  --blue-300: oklch(0.85  0.075 235);
  --blue-400: oklch(0.74  0.12  235);
  --blue-500: oklch(0.64  0.16  240);
  --blue-600: oklch(0.55  0.17  245);
  --blue-700: oklch(0.44  0.15  248);
  --blue-900: oklch(0.27  0.08  248);

  /* 中性 — 微蓝调 */
  --ink-900: oklch(0.18 0.015 245);
  --ink-700: oklch(0.36 0.015 245);
  --ink-500: oklch(0.54 0.012 245);
  --ink-300: oklch(0.78 0.010 245);
  --ink-200: oklch(0.88 0.008 245);
  --ink-100: oklch(0.94 0.006 245);
  --bg:      oklch(0.992 0.005 230);
  --white:   #ffffff;

  /* 语义色 */
  --accent:  oklch(0.78 0.13 195);   /* 青蓝点缀 */
  --ok:      oklch(0.70 0.14 160);
  --warn:    oklch(0.78 0.13 75);

  /* 阴影 / 圆角 / 间距 */
  --shadow-sm: 0 1px 2px rgba(20,40,80,.04), 0 1px 1px rgba(20,40,80,.03);
  --shadow-md: 0 6px 24px -8px rgba(30,60,120,.12), 0 2px 6px rgba(30,60,120,.04);
  --shadow-lg: 0 24px 60px -20px rgba(30,60,120,.18), 0 8px 20px -8px rgba(30,60,120,.08);
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --r-xl: 32px;

  /* 字体 */
  --font-sans: "Inter", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink-900);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }

a { color: var(--blue-600); text-decoration: none; }
a:hover { color: var(--blue-700); }

h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-900);
  margin: 0;
  text-wrap: balance;
}
h1 { font-size: clamp(36px, 5.5vw, 64px); line-height: 1.08; letter-spacing: -0.025em; }
h2 { font-size: clamp(28px, 3.6vw, 44px); line-height: 1.15; letter-spacing: -0.02em; }
h3 { font-size: clamp(20px, 2.2vw, 26px); line-height: 1.3; }
h4 { font-size: 17px; line-height: 1.4; }

p { margin: 0; text-wrap: pretty; }

/* ===== 容器 ===== */
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 820px; margin: 0 auto; padding: 0 24px; }

/* ===== 顶部导航 ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklch, var(--bg) 80%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid color-mix(in oklch, var(--ink-200) 60%, transparent);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 14px 24px;
  display: flex; align-items: center; gap: 24px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 17px;
  color: var(--ink-900);
  letter-spacing: -0.01em;
}
.brand-mark {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--blue-400), var(--blue-600));
  border-radius: 9px;
  box-shadow: 0 3px 10px -2px color-mix(in oklch, var(--blue-500) 50%, transparent);
}
.brand-mark svg { width: 18px; height: 18px; }

.nav-links {
  display: flex; gap: 4px; margin-left: 16px;
}
.nav-links a {
  color: var(--ink-700);
  font-size: 14.5px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: background .15s, color .15s;
}
.nav-links a:hover { background: var(--blue-100); color: var(--blue-700); }
.nav-links a.active { color: var(--blue-700); background: var(--blue-100); }

.nav-cta { margin-left: auto; display: flex; gap: 10px; align-items: center; }

.nav-toggle {
  display: none;
  background: none; border: 0;
  width: 40px; height: 40px;
  border-radius: 8px;
  cursor: pointer;
  margin-left: auto;
}
.nav-toggle:hover { background: var(--ink-100); }
.nav-toggle svg { margin: 0 auto; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  font-size: 14.5px; font-weight: 600;
  border: 0; cursor: pointer;
  font-family: inherit;
  transition: transform .12s, box-shadow .15s, background .15s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--blue-600); color: white;
  box-shadow: 0 6px 16px -6px color-mix(in oklch, var(--blue-600) 70%, transparent);
}
.btn-primary:hover { background: var(--blue-700); color: white; transform: translateY(-1px); }
.btn-ghost {
  background: var(--blue-100); color: var(--blue-700);
}
.btn-ghost:hover { background: var(--blue-200); color: var(--blue-700); }
.btn-outline {
  background: white; color: var(--ink-900);
  border: 1px solid var(--ink-200);
}
.btn-outline:hover { border-color: var(--blue-400); color: var(--blue-700); }
.btn-lg { padding: 14px 26px; font-size: 15.5px; }

/* ===== 通用 section ===== */
section { padding: 80px 0; }
@media (max-width: 720px){ section { padding: 56px 0; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.05em;
  color: var(--blue-700);
  background: var(--blue-100);
  padding: 6px 12px; border-radius: 999px;
  text-transform: uppercase;
}

.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-head h2 { margin-top: 14px; }
.section-head p { color: var(--ink-500); font-size: 17px; margin-top: 14px; }

/* ===== 卡片 ===== */
.card {
  background: white;
  border: 1px solid var(--ink-100);
  border-radius: var(--r-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--blue-200);
}

/* ===== 页脚 ===== */
.footer {
  background: linear-gradient(180deg, var(--blue-50), color-mix(in oklch, var(--blue-100) 60%, var(--bg)));
  border-top: 1px solid var(--ink-100);
  padding: 64px 0 32px;
  margin-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 48px;
}
@media (max-width: 720px){
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
.footer h4 {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-500);
  margin-bottom: 16px;
  font-weight: 600;
}
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer ul a { color: var(--ink-700); font-size: 14.5px; }
.footer ul a:hover { color: var(--blue-700); }
.footer-bottom {
  margin-top: 56px; padding-top: 24px;
  border-top: 1px solid var(--ink-200);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  color: var(--ink-500); font-size: 13px;
}

/* ===== 海浪装饰 ===== */
.wave-bg {
  position: absolute; inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

/* ===== 移动端导航 ===== */
@media (max-width: 860px){
  .nav-links { display: none; }
  .nav-cta .btn:not(.nav-cta-primary) { display: none; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-inner { gap: 12px; }
  .nav.menu-open .nav-links {
    display: flex;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: var(--bg);
    padding: 12px 24px 20px;
    border-bottom: 1px solid var(--ink-200);
    gap: 4px;
  }
}

/* ===== 工具类 ===== */
.muted { color: var(--ink-500); }
.center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }

/* ===== 无障碍 skip-link（来自 _layout.php） ===== */
.skip-link { position: absolute; left: -9999px; top: -9999px; }
.skip-link:focus { left: 16px; top: 16px; background: var(--blue-700); color: white; padding: 8px 14px; border-radius: 6px; z-index: 100; }

/* ===== 多页共享的小组件 ===== */
.breadcrumbs { font-size: 13px; color: var(--ink-500); margin-bottom: 8px; }
.breadcrumbs a { color: var(--ink-700); }
.breadcrumbs span { margin: 0 8px; color: var(--ink-300); }
.detail-page .breadcrumbs { margin-bottom: 12px; }
.faq-page .breadcrumbs { text-align: left; }

.article-tag {
    display: inline-block;
    font-size: 12px; font-weight: 600;
    color: var(--blue-700); background: var(--blue-100);
    padding: 4px 10px; border-radius: 999px;
    letter-spacing: .03em; white-space: nowrap;
    align-self: flex-start;
}

/* ========================================================================
   首页 .home (index.php)
   ======================================================================== */
.home .hero {
    position: relative;
    padding: 88px 0 64px;
    overflow: hidden;
    background:
        radial-gradient(1200px 600px at 80% -10%, color-mix(in oklch, var(--blue-300) 35%, transparent), transparent 60%),
        radial-gradient(900px 500px at 5% 10%, color-mix(in oklch, var(--blue-200) 40%, transparent), transparent 60%),
        var(--bg);
}
.home .hero-grid {
    position: relative; z-index: 2;
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 64px;
    align-items: center;
}
.home .hero h1 { margin-top: 18px; }
.home .hero h1 .accent {
    background: linear-gradient(120deg, var(--blue-600), var(--accent));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.home .hero p.lead {
    margin-top: 22px;
    font-size: 19px;
    color: var(--ink-700);
    line-height: 1.65;
    max-width: 520px;
}
.home .hero-ctas { margin-top: 32px; display: flex; gap: 12px; flex-wrap: wrap; }
.home .hero-stats { margin-top: 44px; display: flex; gap: 36px; flex-wrap: wrap; }
.home .hero-stat .num { font-size: 30px; font-weight: 700; color: var(--blue-700); letter-spacing: -0.02em; }
.home .hero-stat .lbl { font-size: 13px; color: var(--ink-500); margin-top: 2px; }
@media (max-width: 860px){
    .home .hero-grid { grid-template-columns: 1fr; gap: 36px; }
    .home .hero { padding: 56px 0 40px; }
}

.home .demo {
    position: relative; padding: 24px;
    background: linear-gradient(160deg, var(--blue-700), var(--blue-500));
    border-radius: var(--r-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    aspect-ratio: 4 / 4.3;
    max-width: 460px; margin-left: auto;
}
.home .demo::before {
    content: ""; position: absolute; inset: 0;
    background:
        radial-gradient(400px 200px at 20% 10%, rgba(255,255,255,.18), transparent 60%),
        radial-gradient(500px 250px at 90% 90%, rgba(255,255,255,.08), transparent 60%);
}
.home .demo-screen {
    position: relative; height: 100%;
    background: rgba(255,255,255,0.10);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,.18);
    border-radius: 18px; padding: 22px;
    display: flex; flex-direction: column;
    color: white;
}
.home .demo-row { display: flex; justify-content: space-between; align-items: center; font-size: 13px; opacity: .85; }
.home .demo-orb {
    margin: 22px auto 18px;
    width: 168px; height: 168px;
    border-radius: 50%;
    background:
        radial-gradient(circle at 35% 35%, rgba(255,255,255,.9), rgba(255,255,255,0) 55%),
        radial-gradient(circle at 60% 70%, var(--accent), transparent 60%),
        conic-gradient(from 180deg, var(--blue-300), white, var(--blue-300), var(--blue-200), var(--blue-300));
    box-shadow: inset 0 0 40px rgba(255,255,255,.4), 0 16px 50px -8px rgba(0,0,0,.3);
    position: relative;
    animation: seagull-spin 12s linear infinite;
}
.home .demo-orb::after {
    content: ""; position: absolute; inset: -14px;
    border-radius: 50%;
    border: 1px dashed rgba(255,255,255,.35);
    animation: seagull-spin 24s linear infinite reverse;
}
@keyframes seagull-spin { to { transform: rotate(360deg); } }
.home .demo-status { text-align: center; }
.home .demo-status .t1 { font-size: 14px; opacity: .8; letter-spacing: .04em; }
.home .demo-status .t2 { font-size: 28px; font-weight: 700; margin-top: 4px; letter-spacing: -0.01em; }
.home .demo-meta {
    margin-top: auto;
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 12px; padding-top: 18px;
    border-top: 1px solid rgba(255,255,255,.18);
    font-size: 12px;
}
.home .demo-meta div { text-align: center; }
.home .demo-meta b { display: block; font-size: 17px; margin-bottom: 2px; font-weight: 600; letter-spacing: -0.01em; }
.home .demo-meta span { opacity: .75; }

.home .trust {
    position: relative; z-index: 2;
    margin-top: 64px; padding-top: 32px;
    border-top: 1px dashed var(--ink-200);
    display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
    color: var(--ink-500); font-size: 13px;
}
.home .trust b { color: var(--ink-700); margin-right: 6px; font-weight: 600; }

.home .features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 860px) { .home .features { grid-template-columns: 1fr; } }
.home .feature { padding: 32px 28px; }
.home .feature-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    background: var(--blue-100); color: var(--blue-700);
    display: grid; place-items: center;
    margin-bottom: 20px;
}
.home .feature h3 { font-size: 20px; }
.home .feature p { color: var(--ink-500); margin-top: 10px; font-size: 15px; }

.home .steps-bg {
    background: linear-gradient(180deg, white, var(--blue-50));
    border-top: 1px solid var(--ink-100);
    border-bottom: 1px solid var(--ink-100);
}
.home .steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
@media (max-width: 860px){ .home .steps { grid-template-columns: 1fr; } }
.home .step {
    background: white; border: 1px solid var(--ink-100);
    border-radius: var(--r-md); padding: 28px;
    position: relative;
}
.home .step::before {
    counter-increment: step;
    content: "0" counter(step);
    position: absolute; top: 20px; right: 24px;
    font-family: var(--font-mono);
    font-size: 14px; color: var(--blue-400);
    font-weight: 600;
}
.home .step h3 { font-size: 19px; margin-top: 8px; }
.home .step p { color: var(--ink-500); margin-top: 10px; font-size: 15px; }
.home .step-dot {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: var(--blue-100); color: var(--blue-700);
    display: grid; place-items: center;
    margin-bottom: 16px; font-weight: 700;
}

.home .metrics-band {
    background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
    color: white; padding: 56px 0;
    position: relative; overflow: hidden;
}
.home .metrics-band::before {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(500px 250px at 90% 50%, rgba(255,255,255,.10), transparent 60%);
}
.home .metrics-grid {
    position: relative;
    display: grid; grid-template-columns: repeat(4, 1fr);
    gap: 32px; text-align: center;
}
@media (max-width: 720px){ .home .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 32px 24px; } }
.home .metric .num { font-size: clamp(36px, 4vw, 48px); font-weight: 700; letter-spacing: -0.02em; }
.home .metric .lbl { font-size: 14px; opacity: .8; margin-top: 4px; }

.home .platforms-section {
    background:
        radial-gradient(800px 360px at 50% 0%, color-mix(in oklch, var(--blue-200) 35%, transparent), transparent 60%),
        linear-gradient(180deg, var(--blue-50), white);
    border-top: 1px solid var(--ink-100);
    border-bottom: 1px solid var(--ink-100);
}
.home .platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 860px){ .home .platforms { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px){ .home .platforms { grid-template-columns: 1fr; } }
.home .platform {
    position: relative;
    background: white;
    border: 1px solid var(--ink-100);
    border-radius: var(--r-lg);
    overflow: hidden;
    text-align: left;
    display: flex; flex-direction: column;
    transition: transform .25s cubic-bezier(.2,.7,.2,1), box-shadow .25s, border-color .25s;
    color: inherit;
}
.home .platform:hover {
    border-color: var(--blue-300);
    transform: translateY(-6px);
    box-shadow: 0 22px 50px -22px color-mix(in oklch, var(--blue-600) 38%, transparent);
    color: inherit;
}
.home .platform-visual {
    aspect-ratio: 5 / 4;
    position: relative; overflow: hidden;
    display: grid; place-items: center;
    color: white;
}
.home .platform-visual::before {
    content: ""; position: absolute; inset: 0;
    background:
        radial-gradient(220px 140px at 22% 18%, rgba(255,255,255,.30), transparent 60%),
        radial-gradient(260px 160px at 90% 95%, rgba(0,0,0,.08), transparent 60%);
}
.home .platform-visual svg.glyph {
    position: relative; z-index: 2;
    width: 56%; height: auto; max-width: 110px;
    filter: drop-shadow(0 8px 18px rgba(0,0,0,.18));
    opacity: .96;
}
.home .platform-deco { position: absolute; inset: 0; z-index: 1; opacity: .35; }
.home .platform-deco svg { width: 100%; height: 100%; }
.home .platform-info { padding: 22px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.home .platform-info b {
    font-size: 17px; color: var(--ink-900); font-weight: 700;
    letter-spacing: -0.01em;
    display: flex; align-items: center; justify-content: space-between;
}
.home .platform-info b .pill {
    font-size: 11px; font-weight: 600;
    color: var(--blue-700); background: var(--blue-100);
    padding: 3px 8px; border-radius: 999px;
    letter-spacing: .03em; white-space: nowrap;
}
.home .platform-info .req { font-size: 13px; color: var(--ink-500); margin-top: 4px; }
.home .platform-info .specs {
    margin-top: 16px;
    display: flex; gap: 14px; padding-top: 14px;
    border-top: 1px dashed var(--ink-200);
    font-size: 12.5px; color: var(--ink-500);
}
.home .platform-info .specs span { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
.home .platform-info .cta {
    margin-top: 18px;
    display: inline-flex; align-items: center; justify-content: space-between; gap: 8px;
    padding: 11px 16px;
    background: var(--blue-100); color: var(--blue-700);
    border-radius: 10px;
    font-size: 14px; font-weight: 600;
    transition: background .15s, color .15s;
}
.home .platform:hover .platform-info .cta { background: var(--blue-600); color: white; }
.home .platform-info .cta svg { transition: transform .2s; }
.home .platform:hover .platform-info .cta svg { transform: translateX(3px); }
.home .platform.and .platform-visual { background: linear-gradient(135deg, oklch(0.72 0.14 155), oklch(0.55 0.16 175)); }
.home .platform.ios .platform-visual { background: linear-gradient(135deg, oklch(0.42 0.04 250), oklch(0.22 0.02 250)); }
.home .platform.win .platform-visual { background: linear-gradient(135deg, oklch(0.65 0.16 235), oklch(0.45 0.17 245)); }
.home .platform.mac .platform-visual { background: linear-gradient(135deg, oklch(0.78 0.10 285), oklch(0.50 0.16 280)); }

.home .platforms-meta {
    margin-top: 32px;
    display: flex; justify-content: center; align-items: center;
    gap: 22px; flex-wrap: wrap;
    padding: 18px 24px;
    background: white;
    border: 1px solid var(--ink-100);
    border-radius: 999px;
    max-width: 760px; margin-left: auto; margin-right: auto;
    box-shadow: var(--shadow-sm);
    font-size: 13px; color: var(--ink-500);
}
.home .platforms-meta .item { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.home .platforms-meta .item svg { color: var(--blue-600); }
.home .platforms-meta .sep { width: 1px; height: 14px; background: var(--ink-200); }
@media (max-width: 720px){
    .home .platforms-meta { border-radius: var(--r-md); padding: 16px 20px; gap: 12px 18px; }
    .home .platforms-meta .sep { display: none; }
}

.home .faq-preview { display: grid; gap: 12px; max-width: 820px; margin: 0 auto; }
.home details.faq-q {
    background: white;
    border: 1px solid var(--ink-100);
    border-radius: var(--r-md);
    padding: 18px 24px;
    transition: border-color .2s;
}
.home details.faq-q[open] { border-color: var(--blue-300); }
.home details.faq-q summary {
    list-style: none; cursor: pointer;
    font-weight: 600; font-size: 16px;
    display: flex; justify-content: space-between; align-items: center;
    color: var(--ink-900);
}
.home details.faq-q summary::-webkit-details-marker { display: none; }
.home details.faq-q summary::after {
    content: "+";
    font-size: 22px; color: var(--blue-600); font-weight: 400;
    transition: transform .2s;
}
.home details.faq-q[open] summary::after { content: "−"; }
.home details.faq-q p { margin-top: 12px; color: var(--ink-700); font-size: 15px; }

.home .articles-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 860px){ .home .articles-strip { grid-template-columns: 1fr; } }
.home .article-card {
    background: white;
    border: 1px solid var(--ink-100);
    border-radius: var(--r-md);
    padding: 28px 26px;
    transition: all .2s;
    display: flex; flex-direction: column;
    position: relative; overflow: hidden;
}
.home .article-card::before {
    content: "";
    position: absolute; left: 0; top: 0; bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--blue-400), var(--blue-600));
    opacity: 0; transition: opacity .2s;
}
.home .article-card:hover {
    border-color: var(--blue-300);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}
.home .article-card:hover::before { opacity: 1; }
.home .article-card h3 { font-size: 19px; margin-top: 14px; line-height: 1.4; color: var(--ink-900); letter-spacing: -0.005em; }
.home .article-card p.excerpt { margin-top: 10px; font-size: 14px; color: var(--ink-500); line-height: 1.6; }
.home .article-card .meta {
    margin-top: 18px; padding-top: 14px;
    border-top: 1px dashed var(--ink-200);
    font-size: 13px; color: var(--ink-500);
    display: flex; justify-content: space-between; align-items: center;
}
.home .article-card .meta .read-more {
    color: var(--blue-700); font-weight: 600;
    display: inline-flex; align-items: center; gap: 4px;
}
.home .article-card:hover .meta .read-more svg { transform: translateX(3px); }
.home .article-card .meta .read-more svg { transition: transform .2s; }

.home .cta-block {
    background: linear-gradient(135deg, var(--blue-100), var(--blue-200));
    border-radius: var(--r-xl);
    padding: 64px 48px;
    text-align: center;
    position: relative; overflow: hidden;
}
.home .cta-block::before {
    content: "";
    position: absolute; right: -60px; top: -60px;
    width: 280px; height: 280px;
    background: radial-gradient(circle, color-mix(in oklch, var(--blue-300) 70%, transparent), transparent 65%);
    border-radius: 50%;
}
.home .cta-block::after {
    content: "";
    position: absolute; left: -40px; bottom: -80px;
    width: 240px; height: 240px;
    background: radial-gradient(circle, color-mix(in oklch, var(--accent) 50%, transparent), transparent 65%);
    border-radius: 50%;
}
.home .cta-block > * { position: relative; }
.home .cta-block h2 { letter-spacing: -0.025em; }
.home .cta-block p { margin: 16px auto 28px; max-width: 520px; color: var(--ink-700); font-size: 17px; }
@media (max-width: 720px){ .home .cta-block { padding: 48px 24px; } }

/* ========================================================================
   文章详情 .detail-page (detail.php)
   ======================================================================== */
.detail-page .read-progress {
    position: fixed; top: 0; left: 0; right: 0;
    height: 3px; background: var(--blue-100); z-index: 60;
}
.detail-page .read-progress > .bar {
    height: 100%;
    background: linear-gradient(90deg, var(--blue-400), var(--blue-600));
    width: 0; transition: width .1s linear;
}

.detail-page .art-hero {
    padding: 64px 0 32px;
    background:
        radial-gradient(800px 400px at 50% -100px, color-mix(in oklch, var(--blue-300) 40%, transparent), transparent 60%),
        var(--bg);
}
.detail-page .art-hero-wrap {
    max-width: 1100px; margin: 0 auto;
    padding: 0 24px;
    position: relative; z-index: 2;
}
.detail-page .art-hero .tags { display: flex; gap: 6px; margin-bottom: 16px; }
.detail-page .art-tag {
    font-size: 12px; font-weight: 600;
    color: var(--blue-700); background: var(--blue-100);
    padding: 5px 12px; border-radius: 999px;
    letter-spacing: .03em; white-space: nowrap;
    display: inline-block;
}
.detail-page .art-hero h1 { letter-spacing: -0.025em; max-width: 780px; }
.detail-page .art-hero .excerpt {
    margin-top: 20px;
    color: var(--ink-500);
    font-size: 19px; line-height: 1.6;
    max-width: 700px;
}
.detail-page .art-meta {
    margin-top: 32px;
    display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
    font-size: 14px; color: var(--ink-500);
}
.detail-page .art-meta .author { display: flex; align-items: center; gap: 10px; color: var(--ink-700); }
.detail-page .art-meta .author .avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: linear-gradient(135deg, var(--blue-400), var(--blue-600));
    display: grid; place-items: center;
    color: white; font-weight: 700; font-size: 13px;
}
.detail-page .art-meta .author b { font-weight: 600; color: var(--ink-900); }
.detail-page .art-meta .dot { color: var(--ink-300); }

.detail-page .art-divider {
    margin: 40px 0 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--blue-300), transparent);
}

.detail-page .art-body-wrap {
    max-width: 1100px; margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 56px;
}
@media (max-width: 860px){ .detail-page .art-body-wrap { grid-template-columns: 1fr; gap: 0; } }

.detail-page .art-body {
    font-size: 17px; line-height: 1.85;
    color: var(--ink-700);
    max-width: 760px;
}
.detail-page .art-body h2 { font-size: 28px; margin: 48px 0 16px; scroll-margin-top: 96px; letter-spacing: -0.015em; color: var(--ink-900); }
.detail-page .art-body h3 { font-size: 20px; margin: 32px 0 8px; color: var(--ink-900); }
.detail-page .art-body p { margin: 16px 0; }
.detail-page .art-body ul, .detail-page .art-body ol { padding-left: 24px; margin: 16px 0; }
.detail-page .art-body li { margin: 6px 0; }
.detail-page .art-body strong { color: var(--ink-900); font-weight: 600; }
.detail-page .art-body a { color: var(--blue-700); border-bottom: 1px solid color-mix(in oklch, var(--blue-300) 60%, transparent); }
.detail-page .art-body a:hover { border-bottom-color: var(--blue-600); }
.detail-page .art-body img { max-width: 100%; border-radius: var(--r-md); margin: 20px 0; }
.detail-page .art-body code {
    background: var(--ink-100);
    padding: 2px 8px; border-radius: 4px;
    font-family: var(--font-mono); font-size: 14px;
    color: var(--blue-700);
}
.detail-page .art-body blockquote {
    margin: 24px 0; padding: 18px 24px;
    border-left: 3px solid var(--blue-500);
    background: var(--blue-50);
    border-radius: 0 var(--r-md) var(--r-md) 0;
    color: var(--ink-700);
    font-size: 16px;
}
.detail-page .art-body blockquote p:first-child { margin-top: 0; }
.detail-page .art-body blockquote p:last-child { margin-bottom: 0; }
.detail-page .art-body table {
    width: 100%;
    border-collapse: separate; border-spacing: 0;
    margin: 24px 0; font-size: 15px;
    border: 1px solid var(--ink-100);
    border-radius: var(--r-md);
    overflow: hidden;
}
.detail-page .art-body th, .detail-page .art-body td { padding: 12px 16px; text-align: left; }
.detail-page .art-body th { background: var(--blue-50); color: var(--ink-900); font-weight: 600; font-size: 13px; letter-spacing: .04em; text-transform: uppercase; }
.detail-page .art-body tr + tr td { border-top: 1px solid var(--ink-100); }

.detail-page .cta-inline {
    margin: 40px 0; padding: 32px;
    background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
    color: white;
    border-radius: var(--r-lg);
    display: grid; grid-template-columns: 1fr auto;
    align-items: center; gap: 20px;
    overflow: hidden; position: relative;
}
.detail-page .cta-inline::before {
    content: ""; position: absolute; right: -40px; top: -40px;
    width: 160px; height: 160px;
    background: radial-gradient(circle, rgba(255,255,255,0.15), transparent 70%);
    border-radius: 50%;
}
.detail-page .cta-inline b { font-size: 19px; display: block; }
.detail-page .cta-inline p { font-size: 14.5px; opacity: .85; margin-top: 4px; }
.detail-page .cta-inline .btn { background: white; color: var(--blue-700); }
.detail-page .cta-inline .btn:hover { background: var(--blue-50); color: var(--blue-700); }
@media (max-width: 600px){ .detail-page .cta-inline { grid-template-columns: 1fr; padding: 24px; } }

.detail-page .art-nav {
    margin-top: 48px;
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 16px;
}
@media (max-width: 600px){ .detail-page .art-nav { grid-template-columns: 1fr; } }
.detail-page .art-nav a {
    background: white;
    border: 1px solid var(--ink-100);
    border-radius: var(--r-md);
    padding: 18px 22px;
    transition: all .2s;
    color: inherit;
}
.detail-page .art-nav a:hover { border-color: var(--blue-300); transform: translateY(-2px); box-shadow: var(--shadow-md); color: inherit; }
.detail-page .art-nav .label { font-size: 12px; color: var(--ink-500); text-transform: uppercase; letter-spacing: .05em; }
.detail-page .art-nav .t { margin-top: 6px; font-weight: 600; color: var(--ink-900); }
.detail-page .art-nav .next { text-align: right; }

.detail-page .related-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 16px; margin-top: 24px;
}
@media (max-width: 860px){ .detail-page .related-grid { grid-template-columns: 1fr; } }
.detail-page .related-card {
    background: white;
    border: 1px solid var(--ink-100);
    border-radius: var(--r-md);
    padding: 22px;
    transition: all .2s;
    display: flex; flex-direction: column;
    color: inherit;
}
.detail-page .related-card:hover { border-color: var(--blue-300); transform: translateY(-2px); box-shadow: var(--shadow-md); color: inherit; }
.detail-page .related-card h4 { font-size: 16px; line-height: 1.45; margin-top: 12px; }
.detail-page .related-card .meta { margin-top: auto; padding-top: 14px; font-size: 13px; color: var(--ink-500); }

.detail-page .art-toc { font-size: 14px; }
.detail-page .art-toc-inner {
    position: sticky; top: 88px;
    max-height: calc(100vh - 120px); overflow-y: auto;
    padding-right: 8px;
}
.detail-page .art-toc-label {
    font-size: 11px; font-weight: 700;
    letter-spacing: .1em; text-transform: uppercase;
    color: var(--ink-500);
    padding-bottom: 12px;
    border-bottom: 1px solid var(--ink-100);
    margin-bottom: 12px;
}
.detail-page .art-toc ul { list-style: none; padding: 0; margin: 0; }
.detail-page .art-toc li { margin: 0; }
.detail-page .art-toc li.toc-h3 a { padding-left: 24px; font-size: 13px; }
.detail-page .art-toc a {
    display: block;
    padding: 6px 12px;
    color: var(--ink-500);
    border-left: 2px solid transparent;
    line-height: 1.45;
    transition: color .15s, border-color .15s, background .15s;
}
.detail-page .art-toc a:hover { color: var(--blue-700); }
.detail-page .art-toc a.active {
    color: var(--blue-700);
    border-left-color: var(--blue-600);
    background: var(--blue-50);
    font-weight: 600;
}
@media (max-width: 860px){
    .detail-page .art-toc { display: none; }
}

/* ========================================================================
   下载页 .down-page (down.php)
   ======================================================================== */
.down-page .page-hero {
    position: relative;
    padding: 88px 0 40px;
    background:
        radial-gradient(800px 400px at 50% -100px, color-mix(in oklch, var(--blue-300) 40%, transparent), transparent 60%),
        var(--bg);
    text-align: center;
}
.down-page .page-hero h1 { margin-top: 14px; }
.down-page .page-hero p { color: var(--ink-500); font-size: 18px; margin: 18px auto 0; max-width: 620px; }

.down-page .platform-tabs {
    display: flex; justify-content: center; gap: 8px; flex-wrap: wrap;
    margin: 40px 0 0;
}
.down-page .platform-tabs button {
    background: white;
    border: 1px solid var(--ink-200);
    padding: 10px 20px; border-radius: 999px;
    font-size: 14px; font-weight: 600;
    font-family: inherit; color: var(--ink-700);
    cursor: pointer;
    display: inline-flex; align-items: center; gap: 8px;
    transition: all .15s; white-space: nowrap;
}
.down-page .platform-tabs button:hover { border-color: var(--blue-400); color: var(--blue-700); }
.down-page .platform-tabs button.active { background: var(--blue-600); color: white; border-color: var(--blue-600); }

.down-page .dl-panel {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 48px; align-items: center;
    background: white;
    border: 1px solid var(--ink-100);
    border-radius: var(--r-xl);
    padding: 56px;
    box-shadow: var(--shadow-lg);
    position: relative;
    scroll-margin-top: 80px;
}
@media (max-width: 860px){ .down-page .dl-panel { grid-template-columns: 1fr; padding: 32px 24px; gap: 32px; } }
.down-page .dl-meta-row {
    display: flex; align-items: center; gap: 14px;
    font-size: 13px; color: var(--ink-500);
    margin-bottom: 16px;
}
.down-page .dl-meta-row .badge {
    background: var(--blue-100); color: var(--blue-700);
    padding: 4px 10px; border-radius: 999px;
    font-size: 12px; font-weight: 600; white-space: nowrap;
}
.down-page .dl-panel h2 { letter-spacing: -0.02em; }
.down-page .dl-panel .desc { margin-top: 16px; color: var(--ink-700); font-size: 16px; }
.down-page .dl-stats {
    margin-top: 28px;
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 18px; padding: 20px 0;
    border-top: 1px solid var(--ink-100);
    border-bottom: 1px solid var(--ink-100);
}
.down-page .dl-stats div b { display: block; font-size: 18px; color: var(--ink-900); }
.down-page .dl-stats div span { font-size: 12.5px; color: var(--ink-500); }
.down-page .dl-cta { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }
.down-page .dl-cta .secondary {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 11px 18px;
    background: var(--ink-100); color: var(--ink-700);
    border-radius: 999px; font-weight: 600; font-size: 14.5px;
}
.down-page .dl-cta .secondary.disabled { opacity: .5; pointer-events: none; }
.down-page .dl-extra {
    margin-top: 18px;
    display: flex; gap: 18px; flex-wrap: wrap;
    font-size: 13px; color: var(--ink-500);
}
.down-page .dl-extra .kv { display: flex; align-items: center; gap: 6px; }

.down-page .dl-illust {
    aspect-ratio: 1 / 1;
    background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
    border-radius: var(--r-lg);
    position: relative; overflow: hidden;
    display: grid; place-items: center;
    color: white;
    box-shadow: 0 24px 60px -20px color-mix(in oklch, var(--blue-600) 50%, transparent);
}
.down-page .dl-illust::before {
    content: ""; position: absolute; inset: 0;
    background:
        radial-gradient(300px 200px at 20% 20%, rgba(255,255,255,.25), transparent 60%),
        radial-gradient(400px 200px at 90% 90%, rgba(255,255,255,.10), transparent 60%);
}
.down-page .dl-illust svg.platform-glyph {
    position: relative;
    width: 50%; height: auto; opacity: .95;
    filter: drop-shadow(0 8px 24px rgba(0,0,0,.2));
}

.down-page .install-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
@media (max-width: 720px){ .down-page .install-grid { grid-template-columns: 1fr; } }
.down-page .install-step {
    background: var(--blue-50);
    border: 1px solid var(--blue-100);
    border-radius: var(--r-md);
    padding: 22px;
}
.down-page .install-step .n {
    width: 32px; height: 32px;
    background: var(--blue-600); color: white;
    border-radius: 50%;
    display: grid; place-items: center;
    font-weight: 700; font-size: 14px;
    margin-bottom: 12px;
    font-family: var(--font-mono);
}
.down-page .install-step h4 { font-size: 16px; }
.down-page .install-step p { font-size: 14px; color: var(--ink-700); margin-top: 6px; }

.down-page .req-table {
    width: 100%;
    border-collapse: separate; border-spacing: 0;
    background: white;
    border: 1px solid var(--ink-100);
    border-radius: var(--r-md);
    overflow: hidden;
    font-size: 14.5px;
}
.down-page .req-table td { padding: 14px 20px; text-align: left; }
.down-page .req-table tr + tr td { border-top: 1px solid var(--ink-100); }
.down-page .req-table td:first-child { color: var(--ink-500); width: 35%; }
.down-page .req-table td:last-child { font-weight: 500; }

.down-page .all-platforms {
    margin-top: 40px;
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
@media (max-width: 720px){ .down-page .all-platforms { grid-template-columns: 1fr 1fr; } }
.down-page .all-platforms a {
    background: white;
    border: 1px solid var(--ink-100);
    padding: 20px;
    border-radius: var(--r-md);
    text-align: center;
    color: var(--ink-700);
}
.down-page .all-platforms a:hover { border-color: var(--blue-400); color: var(--blue-700); }
.down-page .all-platforms b { display: block; margin-top: 8px; font-size: 15px; color: var(--ink-900); }
.down-page .all-platforms span { font-size: 12.5px; color: var(--ink-500); }

/* ========================================================================
   列表页 .list-page (list.php)
   ======================================================================== */
.list-page .page-hero {
    padding: 88px 0 32px;
    background:
        radial-gradient(800px 400px at 50% -100px, color-mix(in oklch, var(--blue-300) 40%, transparent), transparent 60%),
        var(--bg);
}
.list-page .page-hero .wrap { position: relative; z-index: 2; }
.list-page .page-hero h1 { margin-top: 14px; max-width: 720px; }
.list-page .page-hero .lead { color: var(--ink-700); font-size: 18px; margin-top: 16px; max-width: 620px; }

.list-page .featured {
    display: grid; grid-template-columns: 1.4fr 1fr;
    gap: 24px;
    margin-bottom: 56px;
}
@media (max-width: 860px){ .list-page .featured { grid-template-columns: 1fr; } }
.list-page .featured-main {
    background: linear-gradient(135deg, var(--blue-700), var(--blue-500));
    color: white;
    border-radius: var(--r-lg);
    padding: 48px;
    display: flex; flex-direction: column;
    position: relative; overflow: hidden;
    transition: all .25s;
    min-height: 320px;
}
.list-page .featured-main::before {
    content: ""; position: absolute; right: -80px; top: -80px;
    width: 280px; height: 280px;
    background: radial-gradient(circle, rgba(255,255,255,.16), transparent 65%);
    border-radius: 50%;
}
.list-page .featured-main::after {
    content: ""; position: absolute; left: -60px; bottom: -80px;
    width: 240px; height: 240px;
    background: radial-gradient(circle, rgba(255,255,255,.10), transparent 65%);
    border-radius: 50%;
}
.list-page .featured-main:hover { transform: translateY(-3px); box-shadow: 0 24px 50px -20px color-mix(in oklch, var(--blue-700) 60%, transparent); color: white; }
.list-page .featured-main > * { position: relative; z-index: 2; }
.list-page .featured-main .pinned {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 12px; font-weight: 600;
    background: rgba(255,255,255,.18);
    color: white;
    padding: 5px 12px; border-radius: 999px;
    letter-spacing: .05em;
    align-self: flex-start; white-space: nowrap;
}
.list-page .featured-main h2 { color: white; font-size: 30px; line-height: 1.3; margin-top: 18px; letter-spacing: -0.015em; max-width: 560px; }
.list-page .featured-main .excerpt { color: rgba(255,255,255,.85); font-size: 15.5px; margin-top: 16px; max-width: 540px; line-height: 1.65; }
.list-page .featured-main .meta {
    margin-top: auto; padding-top: 28px;
    display: flex; gap: 16px; flex-wrap: wrap;
    font-size: 13px; color: rgba(255,255,255,.75);
}
.list-page .featured-main .meta b { color: white; font-weight: 600; }

.list-page .featured-side { display: grid; grid-template-rows: 1fr 1fr; gap: 16px; }
.list-page .featured-side-item {
    background: white;
    border: 1px solid var(--ink-100);
    border-radius: var(--r-md);
    padding: 26px;
    display: flex; flex-direction: column;
    transition: all .2s;
    position: relative; overflow: hidden;
    color: inherit;
}
.list-page .featured-side-item::before {
    content: ""; position: absolute; left: 0; top: 0; bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--blue-400), var(--blue-600));
    opacity: 0; transition: opacity .2s;
}
.list-page .featured-side-item:hover {
    border-color: var(--blue-300);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: inherit;
}
.list-page .featured-side-item:hover::before { opacity: 1; }
.list-page .featured-side-item h3 { font-size: 18px; line-height: 1.4; margin-top: 12px; color: var(--ink-900); }
.list-page .featured-side-item .meta { margin-top: auto; padding-top: 14px; font-size: 13px; color: var(--ink-500); }

.list-page .article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 860px){ .list-page .article-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px){ .list-page .article-grid { grid-template-columns: 1fr; } }
.list-page .article-card {
    background: white;
    border: 1px solid var(--ink-100);
    border-radius: var(--r-md);
    padding: 26px 24px;
    display: flex; flex-direction: column;
    transition: all .2s;
    position: relative; overflow: hidden;
    color: inherit;
}
.list-page .article-card::before {
    content: ""; position: absolute; left: 0; top: 0; bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--blue-400), var(--blue-600));
    opacity: 0; transition: opacity .2s;
}
.list-page .article-card:hover { border-color: var(--blue-300); transform: translateY(-3px); box-shadow: var(--shadow-md); color: inherit; }
.list-page .article-card:hover::before { opacity: 1; }
.list-page .article-card h3 { font-size: 17px; margin-top: 12px; line-height: 1.45; color: var(--ink-900); letter-spacing: -0.005em; }
.list-page .article-card .excerpt { font-size: 13.5px; color: var(--ink-500); margin-top: 8px; line-height: 1.6; }
.list-page .article-card .meta {
    margin-top: auto; padding-top: 14px;
    border-top: 1px dashed var(--ink-200);
    font-size: 12.5px; color: var(--ink-500);
    display: flex; justify-content: space-between; align-items: center;
}
.list-page .article-card .meta .read-more { color: var(--blue-700); font-weight: 600; }

.list-page .pagination {
    margin-top: 56px;
    display: flex; justify-content: center; align-items: center; gap: 8px;
}
.list-page .pagination a, .list-page .pagination span, .list-page .pagination .current {
    min-width: 40px; height: 40px;
    padding: 0 14px;
    background: white;
    border: 1px solid var(--ink-200);
    border-radius: 8px;
    font-size: 14px; color: var(--ink-700);
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 500;
}
.list-page .pagination a:hover { border-color: var(--blue-400); color: var(--blue-700); }
.list-page .pagination .current, .list-page .pagination .active { background: var(--blue-600); border-color: var(--blue-600); color: white; }
.list-page .pagination .disabled { color: var(--ink-300); border-color: var(--ink-100); }

.list-page .empty {
    margin: 80px auto;
    text-align: center;
    padding: 64px 24px;
    background: white;
    border: 1px dashed var(--ink-200);
    border-radius: var(--r-md);
    color: var(--ink-500);
    max-width: 520px;
}

/* ========================================================================
   FAQ 页 .faq-page (faq.php)
   ======================================================================== */
.faq-page .page-hero {
    padding: 88px 0 32px;
    background:
        radial-gradient(800px 400px at 50% -100px, color-mix(in oklch, var(--blue-300) 40%, transparent), transparent 60%),
        var(--bg);
    text-align: center;
}
.faq-page .page-hero h1 { margin-top: 14px; }
.faq-page .page-hero .lead { color: var(--ink-700); font-size: 18px; margin: 18px auto 0; max-width: 600px; }

.faq-page .faq-search { max-width: 540px; margin: 40px auto 0; position: relative; }
.faq-page .faq-search input {
    width: 100%;
    padding: 14px 18px 14px 48px;
    font-family: inherit; font-size: 15px;
    background: white;
    border: 1px solid var(--ink-200);
    border-radius: 999px;
    color: var(--ink-900);
    box-shadow: var(--shadow-sm);
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}
.faq-page .faq-search input:focus { border-color: var(--blue-400); box-shadow: 0 0 0 4px color-mix(in oklch, var(--blue-300) 30%, transparent); }
.faq-page .faq-search svg { position: absolute; left: 18px; top: 50%; transform: translateY(-50%); color: var(--ink-500); }

.faq-page .faq-groups { max-width: 880px; margin: 0 auto; }
.faq-page .faq-group h2 {
    font-size: 22px;
    margin: 48px 0 16px;
    letter-spacing: -0.01em;
    display: flex; align-items: center; gap: 10px;
}
.faq-page .faq-group h2 .num {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--blue-400);
    font-weight: 500;
    background: var(--blue-100);
    padding: 4px 10px;
    border-radius: 999px;
}
.faq-page .faq-list { display: grid; gap: 10px; }
.faq-page details.faq-item {
    background: white;
    border: 1px solid var(--ink-100);
    border-radius: var(--r-md);
    padding: 18px 22px;
    transition: border-color .2s;
}
.faq-page details.faq-item[open] { border-color: var(--blue-300); box-shadow: var(--shadow-sm); }
.faq-page details.faq-item summary {
    list-style: none;
    cursor: pointer;
    font-weight: 600; font-size: 16px;
    display: flex; justify-content: space-between; align-items: center; gap: 16px;
    color: var(--ink-900);
}
.faq-page details.faq-item summary::-webkit-details-marker { display: none; }
.faq-page details.faq-item summary::after {
    content: "+"; flex: 0 0 auto;
    font-size: 22px; color: var(--blue-600); font-weight: 400;
}
.faq-page details.faq-item[open] summary::after { content: "−"; }
.faq-page details.faq-item .body {
    margin-top: 14px;
    color: var(--ink-700); font-size: 15px;
    line-height: 1.7;
}
.faq-page details.faq-item .body p { margin: 8px 0; }
.faq-page details.faq-item .body ul { padding-left: 20px; margin: 8px 0; }
.faq-page details.faq-item .body li { margin: 4px 0; }
.faq-page details.faq-item .body code {
    background: var(--ink-100);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 13px;
}

.faq-page .need-help {
    margin-top: 80px;
    background: linear-gradient(135deg, var(--blue-100), var(--blue-200));
    border-radius: var(--r-xl);
    padding: 56px 40px;
    text-align: center;
    position: relative; overflow: hidden;
}
.faq-page .need-help::before {
    content: ""; position: absolute; right: -40px; top: -40px;
    width: 200px; height: 200px;
    background: radial-gradient(circle, color-mix(in oklch, var(--blue-300) 70%, transparent), transparent 65%);
    border-radius: 50%;
}
.faq-page .need-help h2 { letter-spacing: -0.02em; position: relative; }
.faq-page .need-help p { color: var(--ink-700); margin: 14px auto 24px; max-width: 480px; position: relative; }
.faq-page .need-help .actions { display: inline-flex; gap: 12px; flex-wrap: wrap; justify-content: center; position: relative; }

/* ========================================================================
   隐私政策 .privacy-page (privacy.php)
   ======================================================================== */
.privacy-page .page-hero {
    position: relative;
    padding: 88px 0 56px;
    background:
        radial-gradient(800px 400px at 50% -100px, color-mix(in oklch, var(--blue-300) 40%, transparent), transparent 60%),
        var(--bg);
}
.privacy-page .page-hero .wrap-narrow { position: relative; z-index: 2; }
.privacy-page .page-hero h1 { margin-top: 14px; }
.privacy-page .page-hero .lead { color: var(--ink-700); font-size: 18px; margin-top: 18px; max-width: 680px; }

.privacy-page .promises {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 16px; margin-top: 48px;
}
@media (max-width: 720px){ .privacy-page .promises { grid-template-columns: 1fr; } }
.privacy-page .promise {
    background: white;
    border: 1px solid var(--ink-100);
    border-radius: var(--r-md);
    padding: 24px;
    border-top: 3px solid var(--blue-500);
}
.privacy-page .promise b { display: block; font-size: 17px; color: var(--ink-900); margin-bottom: 6px; }
.privacy-page .promise p { font-size: 14.5px; color: var(--ink-500); }

.privacy-page .doc {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 64px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}
@media (max-width: 860px){ .privacy-page .doc { grid-template-columns: 1fr; gap: 24px; } }
.privacy-page .doc-toc {
    position: sticky; top: 96px;
    align-self: start;
    font-size: 14px;
}
@media (max-width: 860px){ .privacy-page .doc-toc { position: static; } }
.privacy-page .doc-toc h4 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--ink-500);
    font-weight: 600;
    margin-bottom: 12px;
}
.privacy-page .doc-toc ol {
    list-style: none; padding: 0; margin: 0;
    display: grid; gap: 4px;
    counter-reset: t;
}
.privacy-page .doc-toc a {
    display: block;
    padding: 8px 12px;
    color: var(--ink-700);
    border-radius: 6px;
    border-left: 2px solid transparent;
}
.privacy-page .doc-toc a::before {
    counter-increment: t;
    content: counter(t, decimal-leading-zero) " · ";
    color: var(--ink-300);
    font-family: var(--font-mono);
    font-size: 13px;
}
.privacy-page .doc-toc a:hover {
    background: var(--blue-50);
    color: var(--blue-700);
    border-left-color: var(--blue-400);
}

.privacy-page .doc-body { font-size: 16px; line-height: 1.75; color: var(--ink-700); }
.privacy-page .doc-body section { padding: 0; margin: 0 0 48px; }
.privacy-page .doc-body h2 {
    font-size: 26px;
    scroll-margin-top: 96px;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
    color: var(--ink-900);
}
.privacy-page .doc-body h2 .nb {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--blue-400);
    font-weight: 500;
    margin-right: 8px;
}
.privacy-page .doc-body h3 { font-size: 18px; margin-top: 28px; margin-bottom: 8px; color: var(--ink-900); }
.privacy-page .doc-body p { margin: 12px 0; }
.privacy-page .doc-body ul, .privacy-page .doc-body ol { padding-left: 22px; margin: 12px 0; }
.privacy-page .doc-body ul li, .privacy-page .doc-body ol li { margin: 6px 0; }
.privacy-page .doc-body strong { color: var(--ink-900); font-weight: 600; }

.privacy-page .do-dont {
    display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
    margin: 24px 0;
}
@media (max-width: 600px){ .privacy-page .do-dont { grid-template-columns: 1fr; } }
.privacy-page .do-block, .privacy-page .dont-block { padding: 20px 22px; border-radius: var(--r-md); font-size: 14.5px; }
.privacy-page .do-block { background: color-mix(in oklch, var(--ok) 12%, white); border: 1px solid color-mix(in oklch, var(--ok) 25%, var(--ink-100)); }
.privacy-page .dont-block { background: color-mix(in oklch, var(--warn) 12%, white); border: 1px solid color-mix(in oklch, var(--warn) 25%, var(--ink-100)); }
.privacy-page .do-block b, .privacy-page .dont-block b {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; letter-spacing: .05em;
    text-transform: uppercase;
    margin-bottom: 12px;
    color: var(--ink-900);
}
.privacy-page .do-block ul, .privacy-page .dont-block ul { list-style: none; padding: 0; margin: 0; }
.privacy-page .do-block li, .privacy-page .dont-block li {
    padding-left: 24px; position: relative;
    margin: 8px 0; color: var(--ink-700);
}
.privacy-page .do-block li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--ok); font-weight: 700; }
.privacy-page .dont-block li::before { content: "✕"; position: absolute; left: 0; top: 0; color: var(--warn); font-weight: 700; }

.privacy-page .meta-card {
    margin-top: 32px;
    background: var(--blue-50);
    border: 1px solid var(--blue-100);
    border-radius: var(--r-md);
    padding: 20px 24px;
    font-size: 14px; color: var(--ink-700);
}
.privacy-page .meta-card b { color: var(--ink-900); }

.privacy-page .callout {
    background: var(--blue-50);
    border-left: 3px solid var(--blue-500);
    padding: 16px 20px;
    margin: 20px 0;
    border-radius: 6px;
    font-size: 14.5px;
}