/* ============================================================
   CPU-Z 中文官网 · 共享样式表
   深色科技风 / 轻量 / 无框架依赖
   ============================================================ */

/* ---------- 设计令牌 ---------- */
:root {
  --bg: #05080f;
  --bg-2: #080d18;
  --bg-3: #0b1222;
  --card: rgba(148, 163, 184, 0.05);
  --card-solid: #0d1526;
  --border: rgba(148, 163, 184, 0.14);
  --border-strong: rgba(148, 163, 184, 0.24);
  --text: #e8eef8;
  --muted: #93a3ba;
  --faint: #5c6b83;
  --accent: #38bdf8;
  --accent-2: #2563eb;
  --accent-3: #818cf8;
  --green: #34d399;
  --red: #f87171;
  --amber: #fbbf24;
  --grad: linear-gradient(120deg, #38bdf8 0%, #2563eb 55%, #818cf8 100%);
  --grad-text: linear-gradient(92deg, #7dd3fc 0%, #38bdf8 40%, #818cf8 100%);
  --radius: 16px;
  --radius-sm: 10px;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, "Courier New", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --shadow-lg: 0 24px 70px -18px rgba(2, 8, 23, 0.9);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  background-image:
    radial-gradient(900px 480px at 85% -5%, rgba(37, 99, 235, 0.14), transparent 60%),
    radial-gradient(700px 420px at -10% 15%, rgba(56, 189, 248, 0.09), transparent 60%);
  background-repeat: no-repeat;
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color 0.25s var(--ease); }
a:hover { color: #7dd3fc; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }

::selection { background: rgba(56, 189, 248, 0.32); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-2); }
::-webkit-scrollbar-thumb { background: #1c2941; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #2a3a5c; }

/* ---------- 排版 ---------- */
h1, h2, h3, h4 { line-height: 1.28; font-weight: 700; color: #f3f7fd; }

.section { padding: 88px 0; position: relative; }
.section-alt { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.container { width: min(1180px, 92%); margin: 0 auto; }

.section-head { text-align: center; max-width: 760px; margin: 0 auto 54px; }
.section-head .tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 600; letter-spacing: 0.14em;
  color: var(--accent); text-transform: uppercase;
  padding: 6px 14px; border-radius: 999px;
  border: 1px solid rgba(56, 189, 248, 0.3);
  background: rgba(56, 189, 248, 0.07);
  margin-bottom: 18px;
}
.section-head .tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.section-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.35rem); margin-bottom: 14px; }
.section-head p { color: var(--muted); font-size: 16.5px; }

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

.text-left { text-align: left; margin-left: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 26px; border-radius: 12px;
  font-weight: 600; font-size: 15.5px; line-height: 1.2;
  border: 1px solid transparent;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-primary {
  background: var(--grad); color: #fff;
  box-shadow: 0 10px 34px -8px rgba(37, 99, 235, 0.65);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 44px -8px rgba(56, 189, 248, 0.5); color: #fff; }
.btn-ghost {
  background: rgba(148, 163, 184, 0.06); color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { border-color: rgba(56, 189, 248, 0.55); background: rgba(56, 189, 248, 0.08); transform: translateY(-2px); color: #e8f4ff; }
.btn-sm { padding: 9px 18px; font-size: 14px; border-radius: 10px; }
.btn-lg { padding: 16px 34px; font-size: 16.5px; border-radius: 14px; }
.btn-block { width: 100%; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: rgba(5, 8, 15, 0.72);
  -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--border); background: rgba(5, 8, 15, 0.9); }
.nav-wrap { display: flex; align-items: center; gap: 30px; height: 70px; }

.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 21px; font-weight: 800; color: #f5f8fd; letter-spacing: 0.02em; }
.brand:hover { color: #fff; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
  background: linear-gradient(140deg, #1d4ed8, #0ea5e9);
  box-shadow: 0 6px 20px -4px rgba(37, 99, 235, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  color: #e0f2fe; flex: none;
}
.brand-mark svg { width: 21px; height: 21px; }
.brand em { font-style: normal; color: var(--accent); }

.site-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-link {
  padding: 9px 15px; border-radius: 9px; font-size: 15px; font-weight: 500;
  color: var(--muted); position: relative; transition: color 0.2s;
}
.nav-link:hover { color: #e6edf7; }
.nav-link.is-active { color: #fff; background: rgba(56, 189, 248, 0.12); }
.nav-link.is-active::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 3px; height: 2px;
  border-radius: 2px; background: var(--grad);
}
.nav-cta { margin-left: 8px; }

.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--border-strong); margin-left: auto; position: relative; }
.nav-toggle span { position: absolute; left: 11px; right: 11px; height: 2px; border-radius: 2px; background: var(--text); transition: transform 0.3s var(--ease), opacity 0.2s; }
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
  font-size: 13.5px; color: var(--faint); margin-bottom: 26px;
}
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { opacity: 0.5; }
.breadcrumb .cur { color: var(--accent); }

/* ---------- Hero ---------- */
.hero { padding: 158px 0 96px; position: relative; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 7px 16px; border-radius: 999px; margin-bottom: 26px;
  font-size: 13.5px; color: #bae6fd;
  border: 1px solid rgba(56, 189, 248, 0.32);
  background: rgba(56, 189, 248, 0.08);
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 12px var(--green); animation: pulse 1.8s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero h1 { font-size: clamp(2.4rem, 5.2vw, 3.9rem); letter-spacing: 0.01em; margin-bottom: 22px; }
.hero-sub { color: var(--muted); font-size: clamp(16px, 1.6vw, 18.5px); max-width: 540px; margin-bottom: 34px; }
.hero-sub strong { color: #cde7ff; font-weight: 600; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }

.hero-meta { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.hero-meta li { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); }
.hero-meta svg { width: 15px; height: 15px; color: var(--green); flex: none; }

.page-hero { padding: 150px 0 64px; }
.page-hero h1 { font-size: clamp(2rem, 4.2vw, 3rem); margin-bottom: 16px; }
.page-hero .lead { color: var(--muted); font-size: 17.5px; max-width: 720px; }

/* ---------- CPU-Z 模拟窗口 ---------- */
.hero-visual { position: relative; }
.hero-visual .orb {
  position: absolute; inset: -8% -6%;
  background: radial-gradient(closest-side at 60% 40%, rgba(37, 99, 235, 0.3), rgba(56, 189, 248, 0.1) 55%, transparent 75%);
  filter: blur(34px); z-index: 0;
}
.float { animation: float 6.5s ease-in-out infinite; position: relative; z-index: 1; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

.cz-window {
  background: #edf1f7; border-radius: 14px; overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(148, 163, 184, 0.22), 0 0 80px -18px rgba(56, 189, 248, 0.35);
  color: #1f2937; font-size: 13px; text-align: left;
  max-width: 560px; margin-left: auto;
}
.cz-titlebar {
  display: flex; align-items: center; gap: 10px; padding: 9px 14px;
  background: linear-gradient(180deg, #e3e9f2, #d2dbe7);
  border-bottom: 1px solid #bcc8d9;
}
.cz-win-dots { display: flex; gap: 6px; }
.cz-win-dots i { width: 11px; height: 11px; border-radius: 50%; display: block; }
.cz-win-dots i:nth-child(1) { background: #f87171; }
.cz-win-dots i:nth-child(2) { background: #fbbf24; }
.cz-win-dots i:nth-child(3) { background: #34d399; }
.cz-win-title { font-weight: 600; font-size: 12px; color: #47536b; letter-spacing: 0.06em; }

.cz-tabs { display: flex; gap: 4px; padding: 9px 10px 0; background: #dbe2ec; border-bottom: 1px solid #bcc8d9; overflow-x: auto; scrollbar-width: none; }
.cz-tabs::-webkit-scrollbar { display: none; }
.cz-tab {
  padding: 7px 15px; border-radius: 9px 9px 0 0; font-size: 12.5px; font-weight: 600;
  color: #5b6b84; white-space: nowrap; transition: background 0.2s, color 0.2s;
}
.cz-tab:hover { color: #1e293b; }
.cz-tab.is-active { background: #edf1f7; color: #0f172a; box-shadow: 0 -1px 0 rgba(56, 189, 248, 0.35) inset; }

.cz-body { padding: 16px 18px 14px; min-height: 328px; }
.cz-pane { display: none; }
.cz-pane.is-active { display: block; animation: czFade 0.35s var(--ease); }
@keyframes czFade { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }

.cz-cols { display: grid; grid-template-columns: 148px 1fr; gap: 20px; }
.cz-side { text-align: center; border-right: 1px dashed #c3cedd; padding-right: 16px; align-self: start; }
.cz-chip {
  width: 86px; height: 86px; margin: 8px auto 12px; border-radius: 14px;
  background: linear-gradient(150deg, #33507a, #101a2e);
  display: grid; place-items: center; color: #7dd3fc;
  box-shadow: inset 0 0 0 3px rgba(125, 211, 252, 0.28), 0 10px 24px -8px rgba(15, 23, 42, 0.55);
}
.cz-chip svg { width: 44px; height: 44px; }
.cz-side-title { font-weight: 700; font-size: 15px; color: #0f172a; line-height: 1.35; }
.cz-side-sub { font-size: 11.5px; color: #64748b; margin-top: 3px; }
.cz-side-kv { margin-top: 12px; font-size: 11.5px; color: #475569; }
.cz-side-kv b { display: block; font-size: 17px; color: #0f172a; font-family: var(--mono); }

.cz-group { font-weight: 700; color: #be1240; font-size: 12px; margin: 11px 0 5px; letter-spacing: 0.04em; }
.cz-row { display: flex; justify-content: space-between; align-items: baseline; gap: 14px; padding: 2px 0; }
.cz-row .l { color: #4b5a72; flex: none; }
.cz-row .v { font-family: var(--mono); color: #101828; text-align: right; font-size: 12.5px; }
.cz-row .v.live { color: #0369a1; font-weight: 700; }
.cz-row .v.live::before {
  content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  background: #059669; margin-right: 7px; vertical-align: 1px; animation: pulse 1.4s infinite;
}

.cz-statusbar {
  display: flex; justify-content: space-between; gap: 12px; padding: 7px 14px;
  background: #e2e9f3; border-top: 1px solid #c4d0e0;
  font-size: 11px; color: #64748b; font-family: var(--mono);
}

/* Bench 面板 */
.cz-bench-note { font-size: 11.5px; color: #64748b; margin-bottom: 14px; }
.bench-row { margin-bottom: 16px; }
.bench-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.bench-top .bl { font-weight: 600; color: #334155; font-size: 12.5px; }
.bench-top .bv { font-family: var(--mono); font-weight: 700; color: #0f172a; }
.bench-bar { height: 10px; border-radius: 8px; background: #d5dde9; overflow: hidden; }
.bench-fill { height: 100%; border-radius: 8px; background: linear-gradient(90deg, #0ea5e9, #2563eb); width: 0; transition: width 1.1s var(--ease) 0.15s; }
.cz-pane.is-active .bench-fill { width: var(--w); }
.bench-ref { font-size: 11px; color: #64748b; margin-top: 5px; }

/* SPD 插槽选择 */
.cz-select {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 4px;
  padding: 5px 12px; border: 1px solid #b9c5d6; border-radius: 8px;
  background: #f6f8fb; font-size: 12.5px; color: #334155; font-weight: 600;
}
.cz-select svg { width: 13px; height: 13px; color: #64748b; }

/* ---------- 数据统计条 ---------- */
.stats-band {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  padding: 34px 8px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  background: rgba(11, 18, 34, 0.55);
}
.stat { text-align: center; position: relative; }
.stat + .stat::before { content: ""; position: absolute; left: -9px; top: 18%; bottom: 18%; width: 1px; background: var(--border); }
.stat b { display: block; font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 800; letter-spacing: 0.01em; }
.stat span { color: var(--muted); font-size: 14px; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px 26px; position: relative; overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.5), transparent);
  opacity: 0; transition: opacity 0.35s;
}
.card:hover { transform: translateY(-5px); border-color: rgba(56, 189, 248, 0.4); background: rgba(56, 189, 248, 0.055); box-shadow: 0 20px 50px -18px rgba(37, 99, 235, 0.45); }
.card:hover::before { opacity: 1; }

.icon-badge {
  width: 50px; height: 50px; border-radius: 13px; display: grid; place-items: center;
  background: linear-gradient(145deg, rgba(56, 189, 248, 0.16), rgba(37, 99, 235, 0.16));
  border: 1px solid rgba(56, 189, 248, 0.28); color: #7dd3fc; margin-bottom: 18px;
}
.icon-badge svg { width: 25px; height: 25px; }
.card h3 { font-size: 17.5px; margin-bottom: 9px; }
.card p { color: var(--muted); font-size: 14.5px; }
.card .more { display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; font-size: 14px; font-weight: 600; }
.card .more svg { width: 15px; height: 15px; transition: transform 0.25s var(--ease); }
.card:hover .more svg { transform: translateX(4px); }

/* 图片卡片 */
.img-card { padding: 0; overflow: hidden; }
.img-card figure { position: relative; aspect-ratio: 4 / 3; overflow: hidden; }
.img-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.img-card:hover img { transform: scale(1.06); }
.img-card .img-body { padding: 22px 24px 26px; }
.img-card .img-cap { position: absolute; left: 14px; bottom: 14px; padding: 5px 13px; border-radius: 999px; font-size: 12px; font-weight: 600; color: #e0f2fe; background: rgba(8, 13, 24, 0.72); border: 1px solid rgba(125, 211, 252, 0.3); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }

/* 人物/场景卡片 */
.persona { display: flex; gap: 14px; align-items: flex-start; padding: 22px 22px; }
.persona .p-icon {
  width: 42px; height: 42px; flex: none; border-radius: 11px; display: grid; place-items: center;
  background: rgba(129, 140, 248, 0.13); border: 1px solid rgba(129, 140, 248, 0.3); color: #a5b4fc;
}
.persona .p-icon svg { width: 21px; height: 21px; }
.persona h3 { font-size: 15.5px; margin-bottom: 4px; }
.persona p { font-size: 13.5px; }

/* ---------- 提示列表 ---------- */
.tips-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.tip {
  display: flex; gap: 13px; align-items: flex-start;
  padding: 17px 19px; border-radius: 13px;
  background: var(--card); border: 1px solid var(--border);
  transition: border-color 0.25s, background 0.25s, transform 0.25s var(--ease);
}
.tip:hover { border-color: rgba(52, 211, 153, 0.4); background: rgba(52, 211, 153, 0.05); transform: translateY(-3px); }
.tip .t-ico { width: 34px; height: 34px; flex: none; border-radius: 9px; display: grid; place-items: center; background: rgba(52, 211, 153, 0.13); color: var(--green); }
.tip .t-ico svg { width: 17px; height: 17px; }
.tip h3 { font-size: 15px; margin-bottom: 3px; }
.tip p { font-size: 13.5px; color: var(--muted); }

/* ---------- 对比双栏 ---------- */
.vs-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.vs-panel { border-radius: var(--radius); padding: 30px 30px; border: 1px solid var(--border); background: var(--card); }
.vs-panel h3 { display: flex; align-items: center; gap: 11px; font-size: 18px; margin-bottom: 20px; }
.vs-panel h3 .vs-ico { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; }
.vs-panel h3 svg { width: 19px; height: 19px; }
.vs-yes { border-color: rgba(52, 211, 153, 0.32); background: rgba(52, 211, 153, 0.05); }
.vs-yes h3 { color: #a7f3d0; }
.vs-yes .vs-ico { background: rgba(52, 211, 153, 0.15); color: var(--green); }
.vs-no { border-color: rgba(248, 113, 113, 0.28); background: rgba(248, 113, 113, 0.04); }
.vs-no h3 { color: #fecaca; }
.vs-no .vs-ico { background: rgba(248, 113, 113, 0.13); color: var(--red); }
.vs-panel li { display: flex; gap: 11px; align-items: flex-start; padding: 8px 0; color: #c7d2e4; font-size: 14.5px; }
.vs-panel li svg { width: 17px; height: 17px; flex: none; margin-top: 4px; }
.vs-yes li svg { color: var(--green); }
.vs-no li svg { color: var(--red); }

/* ---------- 误解卡片 ---------- */
.myth { padding: 26px 26px; }
.myth .q { font-size: 15.5px; font-weight: 700; color: #fde68a; margin-bottom: 10px; display: flex; gap: 10px; align-items: flex-start; }
.myth .q::before { content: "“"; font-size: 26px; line-height: 0.6; color: var(--amber); margin-top: 8px; }
.myth .a { font-size: 14px; color: var(--muted); }
.myth .a b { color: #cde7ff; font-weight: 600; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-3); }
table.data { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 520px; }
table.data th {
  text-align: left; padding: 14px 20px; font-size: 12.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: #7dd3fc; background: rgba(56, 189, 248, 0.07); border-bottom: 1px solid var(--border);
  font-weight: 700; white-space: nowrap;
}
table.data td { padding: 12.5px 20px; border-bottom: 1px solid rgba(148, 163, 184, 0.09); color: #c7d2e4; }
table.data tr:last-child td { border-bottom: 0; }
table.data tbody tr { transition: background 0.2s; }
table.data tbody tr:hover { background: rgba(56, 189, 248, 0.05); }
table.data td.mono, table.data td b { font-family: var(--mono); color: #e8eef8; font-weight: 600; }
table.data td .ok { color: var(--green); font-weight: 600; }

/* ---------- 下载卡片 ---------- */
.dl-card { display: flex; flex-direction: column; align-items: flex-start; }
.dl-card .dl-head { display: flex; align-items: center; gap: 14px; width: 100%; margin-bottom: 14px; }
.dl-card .dl-head h3 { margin: 0; font-size: 17px; }
.dl-card .dl-icon {
  width: 48px; height: 48px; border-radius: 12px; flex: none; display: grid; place-items: center;
  background: linear-gradient(145deg, rgba(56, 189, 248, 0.16), rgba(37, 99, 235, 0.2));
  border: 1px solid rgba(56, 189, 248, 0.3); color: #7dd3fc;
}
.dl-card .dl-icon svg { width: 23px; height: 23px; }
.dl-card .ver { font-size: 12px; color: var(--accent); font-family: var(--mono); font-weight: 700; letter-spacing: 0.05em; }
.dl-card p { flex: 1; }
.dl-card .dl-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%; margin-top: 18px; }
.dl-card .dl-size { font-size: 12.5px; color: var(--faint); font-family: var(--mono); }

/* ---------- 下载页 · 单一主按钮 ---------- */
.dl-hero {
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
  padding: 46px 52px; border-radius: 22px;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.11), rgba(37, 99, 235, 0.055));
  border: 1px solid rgba(56, 189, 248, 0.26);
}
.dl-hero-info h2 { font-size: clamp(1.7rem, 2.8vw, 2.2rem); margin-bottom: 10px; }
.dl-hero-info > p { color: var(--muted); font-size: 15.5px; max-width: 54ch; }
.dl-hero-meta { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 20px; }
.dl-hero-meta span { font-size: 13px; color: var(--faint); font-family: var(--mono); }
.btn-download { padding: 22px 54px; font-size: 19px; border-radius: 16px; flex: none; }
.btn-download svg { width: 22px; height: 22px; }
.dl-note { font-size: 12.5px; color: var(--faint); font-family: var(--mono); }

.brand-card { padding: 22px 22px; }
.brand-card .b-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.brand-card h3 { font-size: 16px; margin: 0; }
.brand-card .b-ver { font-size: 11.5px; font-family: var(--mono); color: var(--accent); border: 1px solid rgba(56, 189, 248, 0.3); padding: 3px 9px; border-radius: 999px; background: rgba(56, 189, 248, 0.07); }
.brand-card p { font-size: 13px; }
.brand-card .b-links { display: flex; gap: 10px; margin-top: 15px; }
.brand-card .b-links a {
  flex: 1; text-align: center; padding: 8px 0; border-radius: 9px; font-size: 13px; font-weight: 600;
  border: 1px solid var(--border-strong); color: var(--muted); transition: all 0.25s var(--ease);
}
.brand-card .b-links a:hover { border-color: rgba(56, 189, 248, 0.55); color: #7dd3fc; background: rgba(56, 189, 248, 0.07); }

/* ---------- 步骤时间线 ---------- */
.steps { counter-reset: step; display: grid; gap: 16px; }
.step {
  display: grid; grid-template-columns: 52px 1fr; gap: 20px; align-items: flex-start;
  padding: 24px 26px; border-radius: var(--radius);
  background: var(--card); border: 1px solid var(--border);
  transition: border-color 0.25s, background 0.25s, transform 0.25s var(--ease);
}
.step:hover { border-color: rgba(56, 189, 248, 0.4); background: rgba(56, 189, 248, 0.05); transform: translateX(4px); }
.step .s-num {
  counter-increment: step; width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center; font-size: 20px; font-weight: 800; font-family: var(--mono);
  background: linear-gradient(145deg, rgba(56, 189, 248, 0.16), rgba(37, 99, 235, 0.22));
  border: 1px solid rgba(56, 189, 248, 0.32); color: #7dd3fc;
}
.step .s-num::before { content: counter(step, decimal-leading-zero); }
.step h3 { font-size: 16.5px; margin-bottom: 6px; }
.step p { font-size: 14.5px; color: var(--muted); }
.step .kbd { margin-top: 4px; }

/* ---------- 键位标签 ---------- */
.kbd {
  display: inline-block; padding: 2px 9px; border-radius: 7px;
  font-family: var(--mono); font-size: 12.5px; font-weight: 600; color: #e8eef8;
  background: linear-gradient(180deg, #1a2540, #101828);
  border: 1px solid #2c3d5f; border-bottom-width: 2.5px; box-shadow: 0 2px 0 rgba(0, 0, 0, 0.35);
  margin: 0 2px; white-space: nowrap;
}
.kbd-row { display: flex; flex-wrap: wrap; gap: 10px 26px; }
.kbd-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--muted); }

/* ---------- 提示框 ---------- */
.callout {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 22px 24px; border-radius: var(--radius); font-size: 14.5px;
  border: 1px solid rgba(56, 189, 248, 0.3); background: rgba(56, 189, 248, 0.06);
}
.callout svg { width: 21px; height: 21px; flex: none; margin-top: 3px; color: var(--accent); }
.callout b { color: #e8f4ff; }
.callout p { color: #b6c6dd; }
.callout.warn { border-color: rgba(251, 191, 36, 0.32); background: rgba(251, 191, 36, 0.06); }
.callout.warn svg { color: var(--amber); }
.callout.green { border-color: rgba(52, 211, 153, 0.32); background: rgba(52, 211, 153, 0.06); }
.callout.green svg { color: var(--green); }

/* ---------- FAQ 手风琴 ---------- */
.acc { display: grid; gap: 12px; }
.acc-item { border: 1px solid var(--border); border-radius: 14px; background: var(--card); overflow: hidden; transition: border-color 0.25s; }
.acc-item.open { border-color: rgba(56, 189, 248, 0.4); background: rgba(56, 189, 248, 0.045); }
.acc-head {
  width: 100%; display: flex; align-items: center; gap: 15px; text-align: left;
  padding: 19px 22px; font-size: 15.5px; font-weight: 600; color: #e8eef8;
}
.acc-head .a-ico {
  width: 34px; height: 34px; flex: none; border-radius: 9px; display: grid; place-items: center;
  background: rgba(56, 189, 248, 0.12); color: #7dd3fc; font-family: var(--mono); font-size: 14px; font-weight: 700;
}
.acc-head .a-q { flex: 1; }
.acc-head .a-arrow { width: 20px; height: 20px; flex: none; color: var(--faint); transition: transform 0.3s var(--ease), color 0.25s; }
.acc-item.open .a-arrow { transform: rotate(180deg); color: var(--accent); }
.acc-body { max-height: 0; overflow: hidden; transition: max-height 0.4s var(--ease); }
.acc-inner { padding: 2px 22px 22px 71px; color: var(--muted); font-size: 14.5px; }
.acc-inner b { color: #cde7ff; font-weight: 600; }
.acc-inner .kbd { margin-right: 6px; }

/* ---------- 名人堂 ---------- */
.hof-list { display: grid; gap: 14px; }
.hof-row {
  display: grid; grid-template-columns: 52px 1fr auto; gap: 18px; align-items: center;
  padding: 18px 22px; border-radius: 14px; border: 1px solid var(--border); background: var(--card);
  transition: border-color 0.25s, transform 0.25s var(--ease);
}
.hof-row:hover { border-color: rgba(251, 191, 36, 0.45); transform: translateY(-3px); }
.hof-rank {
  width: 52px; height: 52px; border-radius: 13px; display: grid; place-items: center;
  font-family: var(--mono); font-weight: 800; font-size: 19px;
}
.hof-rank.r1 { background: linear-gradient(145deg, rgba(251, 191, 36, 0.25), rgba(245, 158, 11, 0.15)); border: 1px solid rgba(251, 191, 36, 0.5); color: #fde68a; }
.hof-rank.r2 { background: linear-gradient(145deg, rgba(203, 213, 225, 0.2), rgba(148, 163, 184, 0.12)); border: 1px solid rgba(203, 213, 225, 0.4); color: #e2e8f0; }
.hof-rank.r3 { background: linear-gradient(145deg, rgba(217, 119, 6, 0.25), rgba(180, 83, 9, 0.14)); border: 1px solid rgba(217, 119, 6, 0.45); color: #fed7aa; }
.hof-row h3 { font-size: 16px; margin-bottom: 3px; }
.hof-row .hof-meta { font-size: 13px; color: var(--muted); font-family: var(--mono); }
.hof-freq { text-align: right; }
.hof-freq b { display: block; font-size: 21px; font-family: var(--mono); color: #fde68a; font-weight: 800; }
.hof-freq span { font-size: 12px; color: var(--faint); }

/* ---------- 时间线（历史） ---------- */
.timeline { position: relative; display: grid; gap: 26px; padding-left: 34px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(180deg, var(--accent), rgba(37, 99, 235, 0.1)); border-radius: 2px; }
.tl-item { position: relative; }
.tl-item::before {
  content: ""; position: absolute; left: -33px; top: 7px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--bg); border: 3px solid var(--accent); box-shadow: 0 0 14px rgba(56, 189, 248, 0.55);
}
.tl-item .tl-time { font-family: var(--mono); font-size: 13px; color: var(--accent); font-weight: 700; letter-spacing: 0.06em; }
.tl-item h3 { font-size: 17px; margin: 5px 0 7px; }
.tl-item p { color: var(--muted); font-size: 14.5px; max-width: 640px; }

/* ---------- 术语表 ---------- */
.glossary dt { font-size: 15px; font-weight: 700; color: #e8eef8; margin-bottom: 5px; display: flex; align-items: center; gap: 8px; }
.glossary dt .g-en { font-size: 11.5px; color: var(--faint); font-family: var(--mono); font-weight: 500; }
.glossary dd { font-size: 13.5px; color: var(--muted); }

/* ---------- CTA 横幅 ---------- */
.cta-band {
  position: relative; overflow: hidden; text-align: center;
  padding: 72px 30px; border-radius: 24px;
  border: 1px solid rgba(56, 189, 248, 0.28);
  background:
    radial-gradient(700px 300px at 50% -40%, rgba(56, 189, 248, 0.22), transparent 65%),
    linear-gradient(160deg, rgba(13, 21, 38, 0.9), rgba(8, 13, 24, 0.95));
}
.cta-band h2 { font-size: clamp(1.6rem, 3.2vw, 2.2rem); margin-bottom: 14px; }
.cta-band p { color: var(--muted); max-width: 560px; margin: 0 auto 30px; font-size: 16px; }
.cta-band .cta-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; }
.cta-band .cta-note { margin-top: 22px; font-size: 13px; color: var(--faint); }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-2); padding: 64px 0 34px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 46px; }
.footer-brand .brand { margin-bottom: 16px; }
.footer-brand p { color: var(--muted); font-size: 14px; max-width: 300px; margin-bottom: 18px; }
.footer-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; font-family: var(--mono); color: var(--accent); border: 1px solid rgba(56, 189, 248, 0.3); background: rgba(56, 189, 248, 0.06); padding: 5px 13px; border-radius: 999px; }
.site-footer h3 { font-size: 14px; letter-spacing: 0.12em; text-transform: uppercase; color: #c3d2e8; margin-bottom: 18px; }
.footer-links li { margin-bottom: 11px; }
.footer-links a { color: var(--muted); font-size: 14.5px; transition: color 0.2s, padding-left 0.25s var(--ease); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 26px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px; }
.footer-bottom p { font-size: 13px; color: var(--faint); }

/* ---------- 友情链接 ---------- */
.friend-links { margin-top: 38px; text-align: center; font-size: 13px; line-height: 2.1; }
.friend-links .fl-label { color: var(--faint); }
.friend-links a { color: var(--muted); text-decoration: none; margin: 0 7px; transition: color 0.2s var(--ease); }
.friend-links a:hover { color: var(--accent); }
.friend-links .fl-sep { color: rgba(148, 163, 184, 0.25); }

/* ---------- 字段清单（指南页） ---------- */
.field-card { padding: 26px 28px; }
.field-card h3 { font-size: 16px; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.field-card h3 .fh-ico { width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center; background: rgba(56, 189, 248, 0.12); color: #7dd3fc; flex: none; }
.field-card h3 .fh-ico svg { width: 17px; height: 17px; }
.field-list { display: grid; gap: 1px; }
.f-row { display: flex; justify-content: space-between; align-items: baseline; gap: 18px; padding: 9px 2px; border-bottom: 1px dashed rgba(148, 163, 184, 0.14); font-size: 14.5px; }
.f-row:last-child { border-bottom: 0; }
.f-row .f-k { color: #cde7ff; font-weight: 600; white-space: nowrap; }
.f-row .f-k small { display: block; font-weight: 400; color: var(--faint); font-size: 11.5px; margin-top: 1px; }
.f-row .f-v { color: var(--muted); text-align: right; font-size: 13.5px; }

.read-card { padding: 26px 28px; }
.read-card h3 { font-size: 16px; margin-bottom: 14px; }
.read-card p { color: var(--muted); font-size: 14.5px; margin-bottom: 12px; }
.read-card p:last-child { margin-bottom: 0; }
.read-card b { color: #cde7ff; font-weight: 600; }

/* ---------- 场景胶囊 ---------- */
.pill-list { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.pill-list span {
  padding: 8px 20px; border-radius: 999px; font-size: 14px; color: #c7d2e4;
  border: 1px solid var(--border-strong); background: var(--card);
  transition: border-color 0.25s, color 0.25s, transform 0.25s var(--ease);
}
.pill-list span:hover { border-color: rgba(56, 189, 248, 0.5); color: #7dd3fc; transform: translateY(-2px); }

/* ---------- 指南页锚点导航 ---------- */
.anchor-nav { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 44px; }
.anchor-nav a {
  padding: 9px 20px; border-radius: 999px; font-size: 14px; font-weight: 600;
  color: var(--muted); border: 1px solid var(--border-strong); background: var(--card);
  transition: all 0.25s var(--ease);
}
.anchor-nav a:hover { color: #fff; border-color: rgba(56, 189, 248, 0.55); background: rgba(56, 189, 248, 0.09); transform: translateY(-2px); }

/* ---------- 代码块 ---------- */
.code-block {
  font-family: var(--mono); font-size: 13.5px; color: #a5d8ff;
  background: #0a1120; border: 1px solid var(--border); border-radius: 12px;
  padding: 16px 20px; overflow-x: auto; line-height: 1.9;
}
.code-block .cmt { color: var(--faint); }

/* ---------- 滚动显现动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); transition-delay: var(--d, 0ms); }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .float, .hero-badge .dot, .cz-row .v.live::before { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { max-width: 560px; margin: 0 auto; }
  .cz-window { margin: 0 auto; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .stats-band { grid-template-columns: repeat(2, 1fr); gap: 26px; }
  .stat:nth-child(3)::before { display: none; }
}

@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .hero { padding: 128px 0 72px; }
  .page-hero { padding: 122px 0 48px; }
  .grid-3, .grid-2, .tips-grid, .vs-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .cz-cols { grid-template-columns: 1fr; }
  .cz-side { border-right: 0; border-bottom: 1px dashed #c3cedd; padding: 0 0 14px; }
  .acc-inner { padding-left: 22px; }
  .hof-row { grid-template-columns: 44px 1fr; }
  .hof-freq { grid-column: 2; text-align: left; }
  .hof-rank { width: 44px; height: 44px; font-size: 16px; }
  .step { grid-template-columns: 44px 1fr; gap: 14px; padding: 20px; }
  .step .s-num { width: 44px; height: 44px; font-size: 16px; }
  .dl-hero { flex-direction: column; text-align: center; padding: 38px 26px; gap: 30px; }
  .dl-hero-info > p { margin: 0 auto; }
  .dl-hero-meta { justify-content: center; gap: 8px 18px; }
  .btn-download { width: 100%; }

  .nav-toggle { display: block; }
  .nav-cta { display: none; }
  .site-nav {
    position: fixed; top: 70px; left: 0; right: 0; z-index: 99;
    flex-direction: column; align-items: stretch; gap: 6px;
    background: rgba(6, 10, 19, 0.97); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 18px 5%; margin: 0;
    transform: translateY(-12px); opacity: 0; visibility: hidden; pointer-events: none;
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease), visibility 0.3s;
  }
  .site-nav.is-open { transform: none; opacity: 1; visibility: visible; pointer-events: auto; }
  .nav-link { padding: 13px 16px; font-size: 16px; }
  .nav-link.is-active::after { display: none; }
}