/* 圣堂投映系统官网样式表 —— Skyway × Drift 融合版。
   深海军蓝天空首屏（多层视差+大字轮播+双显示器）+ 奶油色关于区 + 固定背景特性叙事 + 五图画廊 + 页尾版本卡。
   工程约束：纯静态自包含、无第三方资源、CSS ≤ 30KB、移动优先、尊重 prefers-reduced-motion。 */
:root {
  --bg: #001B48;
  --surface: #02457A;
  --surface-2: rgba(255, 255, 255, 0.03);
  --text: #f5f5f7;
  --muted: #9bb1c4;
  --accent: #FFDE17;
  --accent-hover: #e5c50c;
  --amber: #FFB300;
  --border: rgba(255, 255, 255, 0.1);
  --radius-card: 12px;
  --radius-btn: 8px;
  --max-w: 1120px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: -apple-system, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; font-size: 16px; line-height: 1.6; overflow-x: clip; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 16px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ── 导航（透明 → 白色胶囊） ── */
.scroll-progress { position: fixed; left: 12px; top: 20vh; width: 2px; height: 60vh; background: rgba(255, 255, 255, 0.14); z-index: 60; }
.scroll-progress i { display: block; width: 100%; height: 0%; background: linear-gradient(var(--accent), var(--accent-hover)); }
.site-nav { position: fixed; top: 12px; left: 0; right: 0; margin: 0 auto; z-index: 50; width: 94%; max-width: 1240px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.22); background: rgba(255, 255, 255, 0.12); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); transition: background-color 0.25s ease-out, border-color 0.25s ease-out, box-shadow 0.25s ease-out; }
.site-nav .container { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px; min-height: 52px; padding-top: 6px; padding-bottom: 6px; }
.brand { font-size: 17px; font-weight: 800; color: #ffffff; display: flex; align-items: center; gap: 8px; letter-spacing: -0.01em; }
.brand svg { width: 20px; height: 20px; color: var(--accent); }
.nav-links { display: flex; flex-wrap: wrap; gap: 4px; margin-left: auto; }
.nav-links a { color: rgba(255, 255, 255, 0.85); padding: 8px 12px; border-radius: 999px; min-height: 40px; display: inline-flex; align-items: center; transition: color 0.15s ease-out, background-color 0.15s ease-out; }
.nav-links a:hover { color: #ffffff; background: rgba(255, 255, 255, 0.14); }
.nav-links a[aria-current="page"] { color: var(--bg); background: var(--accent); font-weight: 700; }
.site-nav.scrolled { background: rgba(255, 255, 255, 0.94); border-color: rgba(0, 27, 72, 0.08); box-shadow: 0 10px 34px rgba(0, 20, 60, 0.22); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }
.site-nav.scrolled .brand { color: var(--bg); }
.site-nav.scrolled .brand svg { color: var(--accent-hover); }
.site-nav.scrolled .nav-links a { color: rgba(0, 27, 72, 0.72); }
.site-nav.scrolled .nav-links a:hover { color: var(--bg); background: rgba(0, 27, 72, 0.07); }
.site-nav.scrolled .nav-links a[aria-current="page"] { color: var(--bg); background: rgba(255, 222, 23, 0.55); }

/* ── 天空视差首屏 ── */
.hero-pin.hero-sky { height: 100vh; min-height: 640px; overflow: hidden; position: relative; }
.hero-sky-bg { position: absolute; inset: 0; background: linear-gradient(180deg, #0b4ea8 0%, #1676d1 45%, #5fb9ff 100%); }
.hero-cloud { position: absolute; width: 220px; opacity: 0.9; animation: cloudDrift 26s ease-in-out infinite alternate; }
.hero-cloud--a { top: 12vh; left: 6vw; }
.hero-cloud--b { top: 22vh; right: 8vw; width: 160px; animation-duration: 34s; animation-delay: -8s; }
@keyframes cloudDrift { from { transform: translateX(-2%); } to { transform: translateX(2%); } }
.hero-sky-copy { position: relative; z-index: 3; text-align: center; padding-top: 15vh; }
.serif-tag { font-family: Georgia, "Times New Roman", "STZhongsong", "SimSun", serif; font-style: italic; font-size: 15px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); display: inline-block; margin-bottom: 14px; }
.cycle-word { font-size: clamp(4rem, 10vw, 9rem); font-weight: 900; letter-spacing: -0.04em; line-height: 1.05; color: #ffffff; text-shadow: 0 12px 44px rgba(0, 40, 90, 0.4); white-space: nowrap; }
.cycle-letter { display: inline-block; will-change: transform, opacity; }
.hero-title { font-size: clamp(1.4rem, 2.6vw, 2rem); font-weight: 800; color: #ffffff; margin: 18px 0 10px; letter-spacing: -0.01em; }
.hero-sub { color: rgba(255, 255, 255, 0.88); font-size: 15px; margin-bottom: 26px; }
/* 玻璃 CTA 条（唯一入口 → 下载页） */
.hero-cta-strip { position: relative; z-index: 6; padding: 0 16px 8px; margin-top: -30px; }
.strip-inner { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 14px 20px; max-width: 880px; margin: 0 auto; background: rgba(0, 27, 72, 0.35); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border: 1px solid rgba(255, 255, 255, 0.2); border-radius: 16px; padding: 10px 10px 10px 24px; }
.strip-text { color: rgba(255, 255, 255, 0.88); font-size: 14px; font-weight: 500; }
.strip-btn { background: #ffffff; color: var(--bg); font-weight: 700; font-size: 14px; padding: 10px 22px; border-radius: 12px; transition: background-color 0.15s ease-out; }
.strip-btn:hover { background: var(--accent); color: var(--bg); }
/* 群山 / 前景云 / 双显示器 */
.hero-mountain-wrap { position: absolute; left: -2vw; right: -2vw; bottom: -2px; }
.hero-mountain { display: block; width: 104%; height: auto; }
.hero-mountain.back { opacity: 0.85; }
.monitor-rig { position: absolute; left: 0; right: 0; bottom: 34px; display: flex; justify-content: center; align-items: flex-end; gap: 4vw; z-index: 5; }
.monitor { display: flex; flex-direction: column; align-items: center; margin: 0; }
.monitor-screen { background: #0a0e1a; border: 6px solid #10141f; border-radius: 12px; overflow: hidden; box-shadow: 0 26px 70px rgba(0, 12, 44, 0.5); }
.monitor-screen img { display: block; width: 100%; height: auto; }
.monitor-left .monitor-screen { width: min(42vw, 540px); }
.monitor-right .monitor-screen { width: min(31vw, 400px); }
.monitor-stand { width: 14px; height: 44px; background: linear-gradient(#1a2030, #0b0f1a); }
.monitor-base { width: 130px; height: 10px; border-radius: 6px; background: #0b0f1a; }
.monitor figcaption { margin-top: 10px; color: rgba(255, 255, 255, 0.92); font-size: 13px; }
.hero-clouds-front { position: absolute; left: -2vw; right: -2vw; bottom: -2px; width: 104%; z-index: 4; }
.hero-clouds-front svg { display: block; width: 100%; height: auto; }

/* ── 奶油色关于区 ── */
.about-section { position: relative; z-index: 10; background: #F6E4CF; color: #321C04; border-radius: 25px 25px 0 0; margin-top: -25px; padding: 56px 0 64px; }
.about-lead { text-align: center; color: #321C04; font-size: 16px; max-width: 560px; margin: 0 auto 24px; line-height: 1.8; }
.about-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-bottom: 48px; }
.pill-btn { display: inline-flex; align-items: center; gap: 10px; border-radius: 999px; padding: 10px 22px 10px 12px; font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; transition: filter 0.15s ease-out; }
.pill-ico { width: 26px; height: 26px; border-radius: 50%; background: #ffffff; display: inline-flex; align-items: center; justify-content: center; font-size: 12px; }
.pill-dark { background: #321C04; color: #FFF9F2; }
.pill-dark:hover { filter: brightness(1.25); color: #FFF9F2; }
.pill-mute { background: #D9C4AA; color: #321C04; }
.pill-mute:hover { filter: brightness(1.05); color: #321C04; }
.about-divider { display: flex; align-items: center; gap: 6px; margin: 40px 0 48px; }
.about-divider .dot { width: 8px; height: 8px; border-radius: 50%; background: #D9C4AA; }
.about-divider .line { flex: 1; height: 2px; background: #D9C4AA; }
.about-bottom { display: flex; flex-direction: column; gap: 32px; }
.about-brand { display: flex; align-items: center; gap: 12px; color: #321C04; }
.about-brand svg { width: 36px; height: 36px; }
.about-brand-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.18em; font-weight: 600; line-height: 1.4; }
.about-statement { font-size: clamp(20px, 3.4vw, 38px); line-height: 1.35; font-weight: 400; color: #321C04; }

/* ── 通用区块 ── */
.section { padding: 56px 0; position: relative; z-index: 10; }
.section h2 { font-size: clamp(24px, 3.4vw, 36px); line-height: 1.25; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 28px; background: linear-gradient(180deg, #ffffff 30%, var(--muted)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { color: var(--muted); max-width: 640px; }

/* ── 真机实拍（固定背景 + 吸附导航 + 滚动卡片） ── */
.feat-section { position: relative; padding: 72px 0; background: url("../img/hero-bg.webp") center / cover no-repeat fixed #06294f; }
.feat-section::before { content: ""; position: absolute; inset: 0; background: rgba(0, 27, 72, 0.62); }
.feat-inner { position: relative; display: grid; grid-template-columns: 1fr; gap: 40px; }
.feat-sticky h2 { font-size: clamp(24px, 3vw, 40px); line-height: 1.2; font-weight: 400; color: #ffffff; margin-bottom: 24px; }
.feat-nav { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.feat-nav-btn { text-align: left; background: rgba(0, 0, 0, 0.2); color: rgba(255, 255, 255, 0.45); border: none; border-radius: 999px; padding: 10px 18px; font-size: 14px; font-weight: 500; cursor: pointer; transition: color 0.2s ease-out; }
.feat-nav-btn:hover { color: rgba(255, 255, 255, 0.8); }
.feat-nav-btn.active { background: rgba(0, 0, 0, 0.2); color: #ffffff; }
.feat-cta-text { color: rgba(255, 255, 255, 0.75); font-size: 13px; margin-bottom: 12px; }
.feat-cta { display: inline-block; background: #ffffff; color: var(--bg); font-weight: 700; font-size: 14px; padding: 11px 22px; border-radius: 12px; }
.feat-cta:hover { background: var(--accent); color: var(--bg); }
.feat-cards { display: flex; flex-direction: column; gap: 32px; }
.feat-card { background: rgba(0, 0, 0, 0.25); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-radius: 24px; padding: 20px; }
html.js .feat-card { opacity: 0; transform: translateX(64px); transition: opacity 0.7s ease-out, transform 0.7s ease-out; }
html.js .feat-card.in { opacity: 1; transform: none; }
.feat-card img { width: 100%; height: auto; border-radius: 16px; background: rgba(0, 0, 0, 0.3); }
.feat-card figcaption { padding: 14px 6px 4px; }
.feat-card strong { display: block; color: #ffffff; font-size: 19px; font-weight: 600; margin-bottom: 4px; }
.feat-card span { color: rgba(255, 255, 255, 0.62); font-size: 14px; font-weight: 500; line-height: 1.7; }

/* ── 功能轮播（整卡不裁切） ── */
.car { position: relative; }
.car-track { display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; padding-bottom: 4px; }
.car-track::-webkit-scrollbar { display: none; }
.feature-card { position: relative; overflow: hidden; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 22px; scroll-snap-align: start; transition: transform 0.25s ease-out, border-color 0.25s ease-out; }
.feature-card::before { content: ""; position: absolute; inset: 0; background: radial-gradient(240px 160px at 100% 0%, rgba(255, 222, 23, 0.15), transparent 70%); opacity: 0; transition: opacity 0.25s ease-out; pointer-events: none; }
.feature-card:hover { transform: translateY(-8px); border-color: rgba(255, 222, 23, 0.35); }
.feature-card:hover::before { opacity: 1; }
.feature-card svg { width: 26px; height: 26px; color: var(--accent); margin-bottom: 12px; position: relative; transition: transform 0.25s ease-out; }
.feature-card:hover svg { transform: scale(1.1) rotate(5deg); }
.feature-card h3 { font-size: 18px; margin-bottom: 8px; position: relative; }
.feature-card p { color: var(--muted); font-size: 14px; position: relative; }
.car-track .feature-card { min-width: 100%; }
.car-arrow { position: absolute; top: 50%; transform: translateY(-50%); z-index: 3; width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--border); background: rgba(255, 255, 255, 0.92); color: var(--bg); cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3); }
.car-arrow svg { width: 20px; height: 20px; }
.car-prev { left: -8px; }
.car-next { right: -8px; }

/* ── 对比 ── */
.compare-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.compare-card { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 24px; }
.compare-tag { color: var(--accent); font-weight: 700; margin-bottom: 14px; }
.cmp-row { display: flex; gap: 12px; align-items: flex-start; padding: 7px 0; }
.cmp-them, .cmp-us-tag { flex: 0 0 auto; font-size: 12px; font-weight: 700; padding: 2px 8px; border-radius: 6px; margin-top: 2px; }
.cmp-them { color: var(--muted); border: 1px solid var(--border); }
.cmp-us-tag { background: var(--accent); color: var(--bg); }
.cmp-row p { font-size: 14px; color: var(--muted); }
.cmp-us p { color: var(--text); }

/* ── 数据条 ── */
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px 16px; padding: 32px 0; border-top: 1px solid rgba(255, 255, 255, 0.05); border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
.stat-value { font-size: 34px; font-weight: 800; letter-spacing: -0.02em; color: var(--accent); line-height: 1.2; }
.stat-label { color: var(--muted); font-size: 14px; }

/* ── 界面一览（五图画廊） ── */
.gallery-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.g-item { position: relative; overflow: hidden; border-radius: var(--radius-card); border: 1px solid var(--border); background: var(--surface-2); margin: 0; }
.g-item img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.3s ease-out; }
.g-item:hover img { transform: scale(1.03); }
.g-item figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 10px 14px; font-size: 13px; color: #ffffff; background: linear-gradient(transparent, rgba(0, 27, 72, 0.92)); }
.g-3 { grid-column: span 3; }
.g-3 img { height: 320px; }
.g-2 { grid-column: span 2; }
.g-2 img { height: 300px; }
.g-vocals img { object-fit: contain; background: #10141f; padding: 12px 0; }

/* ── 页尾版本卡 ── */
.end-card-section { padding: 16px 0 72px; }
.dl-card { background: #f5f5f7; color: var(--bg); border-radius: 14px; box-shadow: 0 14px 48px rgba(0, 0, 0, 0.35); padding: 22px 26px; }
.dl-options { display: flex; flex-wrap: wrap; gap: 8px 20px; padding-bottom: 14px; border-bottom: 1px solid rgba(0, 27, 72, 0.12); margin-bottom: 14px; }
.dl-badge { font-size: 13px; font-weight: 600; color: var(--surface); }
.dl-fields { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; }
.dl-field { display: flex; flex-direction: column; min-width: 110px; }
.dl-k { font-size: 12px; color: rgba(0, 27, 72, 0.6); }
.dl-v { font-size: 16px; font-weight: 700; color: var(--bg); }
.dl-cta { margin-left: auto; background: var(--amber); color: var(--bg); font-weight: 700; padding: 12px 26px; border-radius: var(--radius-btn); min-height: 48px; display: inline-flex; align-items: center; transition: filter 0.15s ease-out; }
.dl-cta:hover { filter: brightness(1.06); color: var(--bg); }

/* ── 页脚 / 渐显 ── */
.site-footer { border-top: 1px solid var(--border); padding: 32px 0; color: var(--muted); font-size: 14px; }
.site-footer .container { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }
html.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
html.js .reveal.in { opacity: 1; transform: none; }

/* ── 平板 ── */
@media (min-width: 640px) {
  .container { padding: 0 24px; }
  .cycle-word { font-size: clamp(4rem, 10vw, 9rem); }
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
  .stat-value { font-size: 44px; }
  .car-track .feature-card { min-width: calc((100% - 16px) / 2); }
  .about-bottom { flex-direction: row; justify-content: space-between; align-items: flex-start; }
  .dl-fields { flex-direction: row; }
  .dl-cta { margin-left: auto; }
}
/* ── 桌面 ── */
@media (min-width: 1024px) {
  .container { padding: 0 32px; }
  .hero-sky-copy { padding-top: 17vh; }
  .section { padding: 64px 0; }
  .feat-inner { grid-template-columns: 420px 1fr; gap: 64px; }
  .feat-sticky { position: sticky; top: 110px; align-self: start; }
  .car-track .feature-card { min-width: calc((100% - 48px) / 4); }
  .about-statement { font-size: clamp(24px, 2.6vw, 36px); }
}
/* ── 动效偏好 ── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
  html.js .reveal, html.js .feat-card { opacity: 1; transform: none; }
}

/* ── v9：feat 卡图统一限高 / about 深色化 / 天空页头 ── */
.feat-card img { width: 100%; height: auto; max-height: 460px; object-fit: contain; background: #10141f; border-radius: 16px; }
.about-section { background: linear-gradient(180deg, #0a2a5e 0%, #06204a 100%); color: var(--text); }
.about-lead { color: var(--text); }
.about-brand { color: var(--text); }
.about-statement { color: var(--text); }
.about-divider .dot, .about-divider .line { background: rgba(255, 255, 255, 0.18); }
.pill-dark { background: var(--accent); color: var(--bg); }
.pill-dark .pill-ico { background: rgba(0, 27, 72, 0.15); }
.pill-dark:hover { filter: brightness(1.06); color: var(--bg); }
.pill-mute { background: rgba(255, 255, 255, 0.12); color: var(--text); }
.pill-mute .pill-ico { background: rgba(255, 255, 255, 0.18); }
.pill-mute:hover { filter: brightness(1.15); color: var(--text); }
.page-hero { position: relative; overflow: hidden; background: linear-gradient(180deg, #0b4ea8 0%, #1676d1 60%, #2f7fd4 100%); padding: 150px 0 110px; text-align: center; }
.page-hero h1 { font-size: clamp(30px, 4.6vw, 52px); font-weight: 900; letter-spacing: -0.02em; color: #ffffff; margin-bottom: 12px; }
.ph-sub { color: rgba(255, 255, 255, 0.88); font-size: 15px; }
.ph-cloud { position: absolute; width: 190px; opacity: 0.55; animation: cloudDrift 30s ease-in-out infinite alternate; }
.ph-c1 { top: 16vh; left: 7vw; }
.ph-mountain { position: absolute; left: -2vw; right: -2vw; bottom: -2px; }
.ph-mountain svg { display: block; width: 104%; height: auto; }

/* ── 按钮 + 下载面板（子页使用） ── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 12px 24px; border-radius: var(--radius-btn); font-size: 16px; font-weight: 700; transition: filter 0.15s ease-out, background-color 0.15s ease-out; }
.btn svg { width: 18px; height: 18px; flex: 0 0 auto; }
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--accent); color: var(--bg); }
.btn-primary:hover { filter: brightness(1.06); }
.btn-secondary { background: rgba(255, 255, 255, 0.08); color: var(--accent); border: 1px solid var(--accent); }
.btn-secondary:hover { background: rgba(255, 222, 23, 0.12); }
.download-panel { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 28px 24px; }
.download-meta { color: var(--muted); font-size: 14px; margin: 8px 0 24px; }
.download-actions { display: flex; flex-direction: column; gap: 12px; }
/* ── v10：下载页 WebGL Shader 英雄区 + 玻璃卡 ── */
.shader-hero { position: relative; height: 76vh; min-height: 520px; overflow: hidden; }
#shader-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.shader-veil { position: absolute; inset: 0; background: rgba(0, 20, 50, 0.18); }
.shader-copy { position: relative; z-index: 2; text-align: center; padding-top: 18vh; }
.shader-copy h1 { font-size: clamp(30px, 4.6vw, 52px); font-weight: 900; letter-spacing: -0.02em; color: #ffffff; margin-bottom: 12px; }
.shader-copy .ph-sub { color: rgba(255, 255, 255, 0.88); font-size: 15px; margin-bottom: 26px; }
.shader-cta { display: inline-block; background: #ffffff; color: var(--bg); font-weight: 700; font-size: 15px; padding: 12px 28px; border-radius: 12px; transition: background-color 0.15s ease-out; }
.shader-cta:hover { background: var(--accent); color: var(--bg); }
.brand-logo { width: 26px; height: 26px; border-radius: 6px; }
.dl-links { margin-top: 18px; display: flex; flex-direction: column; gap: 12px; }
.dl-links .btn { width: 100%; }
.dl-note { color: var(--muted); font-size: 13px; margin: 4px 0 0; }
.dl-note strong { color: var(--accent); }
.dl-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.glass-card { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 26px; }
.glass-card h2 { font-size: 20px; font-weight: 800; color: var(--text); margin-bottom: 16px; }
.glass-card + .glass-card { margin-top: 16px; }
.glass-card h2 + h2 { margin-top: 26px; }
@media (min-width: 900px) {
  .dl-grid { grid-template-columns: 1fr 1fr; align-items: start; }
  .dl-links { flex-direction: row; }
  .dl-links .btn { flex: 1; }
}
/* ── v10b：教程仪表盘 + 更新日志展卷 ── */
.dash-section { padding: 56px 0 72px; }
.dash-head { display: flex; align-items: center; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); margin-bottom: 24px; }
.dash-avatar { width: 52px; height: 52px; border-radius: 50%; background: linear-gradient(135deg, #ff9a62, #FFB300); display: flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.dash-avatar svg { width: 26px; height: 26px; }
.dash-greet { font-family: Georgia, "Times New Roman", serif; font-size: clamp(26px, 3.4vw, 40px); color: #ffffff; }
.dash-side-note { margin-left: auto; color: var(--muted); font-size: 13px; text-align: right; }
.dash-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.dash-pill { display: flex; align-items: center; gap: 10px; background: #DBECFC; color: var(--bg); border-radius: 999px; padding: 10px 16px; }
.dash-pill-x { width: 22px; height: 22px; border-radius: 50%; background: #ffffff; position: relative; flex: 0 0 auto; }
.dash-pill-x::before, .dash-pill-x::after { content: ""; position: absolute; left: 50%; top: 50%; width: 10px; height: 3px; border-radius: 2px; background: #EAB308; transform: translate(-50%, -50%) rotate(45deg); }
.dash-pill-x::after { transform: translate(-50%, -50%) rotate(-45deg); }
.dash-pill-t { font-weight: 700; font-size: 14px; }
.dash-pill-s { font-size: 11px; color: rgba(0, 27, 72, 0.6); }
.dash-chev { width: 18px; height: 18px; margin-left: auto; }
.dash-big { font-size: clamp(72px, 9vw, 120px); font-weight: 900; letter-spacing: -0.04em; line-height: 1; color: #ffffff; }
.dash-big-sub { font-size: 0.35em; font-weight: 700; color: var(--accent); margin-left: 6px; }
.dash-big-cap { color: var(--muted); font-size: 13px; margin-top: 6px; }
.dash-center { display: flex; flex-direction: column; gap: 16px; }
.step-card { background: #f5f5f7; color: var(--bg); border-radius: 20px; padding: 16px 20px; box-shadow: 0 8px 30px rgba(0, 10, 40, 0.18); }
.step-row { display: flex; align-items: center; gap: 12px; padding-bottom: 10px; border-bottom: 1px solid rgba(0, 27, 72, 0.1); }
.step-ico { width: 30px; height: 30px; border-radius: 9px; background: var(--bg); color: var(--accent); font-weight: 800; display: inline-flex; align-items: center; justify-content: center; font-size: 14px; flex: 0 0 auto; }
.step-row strong { font-size: 16px; }
.step-tag { margin-left: auto; font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.tag-green { background: #22c55e; color: #ffffff; }
.tag-yellow { background: #facc15; color: #1f2937; }
.step-details { display: grid; grid-template-columns: 1fr 1fr 0.6fr; gap: 8px 16px; padding-top: 12px; }
.step-details i { display: block; font-style: normal; color: rgba(0, 27, 72, 0.55); font-size: 12px; }
.step-details b { font-size: 13px; font-weight: 600; color: var(--bg); }
.dash-right { display: flex; flex-direction: column; gap: 16px; }
.dash-card { background: #f5f5f7; color: var(--bg); border-radius: 20px; padding: 20px 22px; }
.dash-card-head { font-weight: 800; font-size: 17px; margin-bottom: 10px; }
.dash-list { list-style: none; }
.dash-list li { padding: 9px 0; border-top: 1px solid rgba(0, 27, 72, 0.08); font-size: 14px; color: #1f2937; }
.dash-blue { background: #DBECFC; border-radius: 20px; padding: 20px 22px; position: relative; overflow: hidden; }
.dash-badge { display: inline-block; background: #3b82f6; color: #ffffff; font-size: 11px; font-weight: 600; padding: 3px 10px; border-radius: 999px; margin-bottom: 10px; }
.dash-blue-t { font-family: Georgia, serif; font-size: 24px; color: var(--bg); margin-bottom: 6px; }
.dash-blue p { font-size: 13px; color: rgba(0, 27, 72, 0.75); margin-bottom: 14px; }
.dash-wave { list-style: none; display: flex; align-items: flex-end; gap: 3px; height: 48px; }
.dash-wave i { width: 2px; border-radius: 2px; background: #3b82f6; display: block; }
.dash-faq { margin-top: 48px; }
.dash-faq h2 { font-size: 26px; font-weight: 800; color: #ffffff; margin-bottom: 20px; }
.faq-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 900px) { .dash-grid { grid-template-columns: 3fr 6fr 3fr; } .faq-grid { grid-template-columns: repeat(3, 1fr); } }

.cs-wrap { position: relative; height: 240vh; }
.cs-sticky { position: sticky; top: 0; height: 100vh; display: flex; align-items: center; justify-content: center; perspective: 1400px; padding: 96px 16px 48px; }
.cs-stage { width: 100%; }
.cs-head { text-align: center; margin-bottom: 28px; }
.cs-head h1 { font-size: clamp(30px, 4.6vw, 52px); font-weight: 900; color: #ffffff; margin-bottom: 6px; }
.cs-container { width: min(1000px, 100%); max-height: 72vh; overflow-y: auto; margin: 0 auto; background: linear-gradient(180deg, #0a2a5e, #06204a); border: 1px solid var(--border); border-radius: 24px; box-shadow: 0 40px 100px rgba(0, 10, 40, 0.55); transform-origin: top center; will-change: transform; }
.cs-bar { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; gap: 8px; padding: 14px 18px; border-bottom: 1px solid var(--border); background: rgba(6, 32, 74, 0.9); backdrop-filter: blur(8px); }
.cs-dot { width: 11px; height: 11px; border-radius: 50%; }
.cs-bar-title { margin-left: 8px; color: var(--muted); font-size: 13px; }
.cs-body { padding: 26px 30px 34px; }
.cs-body .log-entry:last-child { margin-bottom: 0; }

/* ── v11：下载按钮不挤压 / 声部图居中 / 页头层级修复 ── */
.dl-links .btn { flex: 1 1 0; min-width: 240px; white-space: nowrap; }
.dl-note { flex-basis: 100%; }
.feat-card[data-idx="1"] img { width: auto; max-width: 100%; margin: 0 auto; }
.ph-inner { position: relative; z-index: 2; }
.ph-mountain { max-height: 200px; overflow: hidden; }
.cs-head { min-height: 0; padding: 88px 0 24px; display: flex; align-items: center; justify-content: center; }
.cs-head .container { text-align: center; }

/* ── v13：对比板块生成图画廊 ── */
.compare-gallery { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.cmp-fig { margin: 0; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-card); overflow: hidden; }
.cmp-fig img { width: 100%; height: auto; display: block; }
.cmp-fig figcaption { padding: 10px 14px; font-size: 13px; color: var(--muted); text-align: center; }
.cmp-fig-wide { grid-column: 1 / -1; }
@media (max-width: 760px) { .compare-gallery { grid-template-columns: 1fr; } }
/* v13 补充：两张分屏图统一 4:3 裁切等高；分区锚点跳转让出固定导航 */
.cmp-fig:not(.cmp-fig-wide) img { aspect-ratio: 4 / 3; object-fit: cover; }
.section { scroll-margin-top: 90px; }

/* ── v15：对齐 Aceternity Container Scroll 原版——标题紧接转正容器、版本条目呼吸间距 ── */
.cs-wrap { height: 230vh; }
.cs-sticky { padding: 84px 16px 40px; }
.log-entry { margin-bottom: 22px; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.log-entry h3 { margin-bottom: 8px; }
.cs-body .log-entry:last-child { margin-bottom: 0; border-bottom: none; padding-bottom: 0; }

/* ── v16：更新日志重构——Aceternity 原版贯穿式转正（去钉住）+ 超大标题 + 无干滚空白 ── */
.cs-wrap { height: auto; }
.cs-sticky { position: static; height: auto; display: flex; justify-content: center; padding: 20px 16px 140px; perspective: 1000px; }
.cs-head { padding: 76px 0 20px; }
.cs-head h1 { font-size: clamp(48px, 9vw, 128px); letter-spacing: 0.01em; }
.cs-head .ph-sub { font-size: clamp(15px, 1.6vw, 20px); }
.cs-container { max-height: none; overflow-y: visible; }

/* ── v18：对齐原版排版——小字在上、大标题紧贴容器上沿（负 margin 压住标题底部） ── */
.cs-head { padding: 32vh 0 0; }
.cs-head .ph-sub { margin-bottom: 6px; }
.cs-head h1 { margin-bottom: 0; }
.cs-sticky { padding: 0 16px 140px; }
.cs-stage { margin-top: -210px; }

/* ── v19：容器已无内部滚动，cs-bar 的 sticky 会让它钉在视口顶而卡片随页滚走 → 逐渐错位；回归流内头部 ── */
.cs-bar { position: static; }