/* ============================================================
   渡生产品子页 2026 · v2（saas / ai-engine / yingkebao）
   与官网 design-2026.css 共用品牌 token；类名带 pp- 前缀或仅在 main.pp2026 内生效。
   三页各有主题：theme-saas（品牌青）/ theme-ai（深色实验室）/ theme-ya（渡芽绿）
   ============================================================ */

@font-face {
  font-family: 'Taipei Sans TC Beta';
  src: url('../fonts/TaipeiSansTCBeta-Regular.woff2?v=20260906-2') format('woff2');
  font-weight: 400; font-display: swap;
}
@font-face {
  font-family: 'Taipei Sans TC Beta';
  src: url('../fonts/TaipeiSansTCBeta-Bold.woff2?v=20260906-2') format('woff2');
  font-weight: 700; font-display: swap;
}

:root {
  --pp-bg: #ecf7f9;
  --pp-accent: #43adc0;
  --pp-accent-dark: #35899a;
  --pp-accent-10: rgba(67, 173, 192, 0.10);
  --pp-accent-16: rgba(67, 173, 192, 0.16);
  --pp-accent-20: rgba(67, 173, 192, 0.20);
  --pp-accent-50: rgba(67, 173, 192, 0.50);
  --pp-ink: #101416;
  --pp-ink-soft: #3d4f55;
  --pp-muted: #6b8288;
  --pp-card: #f5fbfc;
  --pp-cube: #dbeff3;
  --pp-cube-strong: #cae8ee;
  --pp-footer: #36454b;
  --pp-line: rgba(67, 173, 192, 0.4);
  --pp-r-s: 12px;
  --pp-r-l: 24px;
  --pp-shadow: 2px 2px 8px rgba(16, 20, 22, 0.10);
  --pp-shadow-lift: 0 14px 40px rgba(16, 20, 22, 0.12);
  --pp-glow: 0 8px 44px rgba(67, 173, 192, 0.5);
  --pp-font: 'Taipei Sans TC Beta', 'Taipei Sans TC Ext', 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --pp-mono: 'Cascadia Code', Consolas, 'SFMono-Regular', Menlo, 'Taipei Sans TC Beta', 'Taipei Sans TC Ext', 'Microsoft YaHei', monospace;
  --pp-nav-h: 88px;
  /* 深色（AI 页） */
  --pp-dark: #0b1518;
  --pp-dark-2: #10222a;
  --pp-dark-line: rgba(90, 212, 232, 0.22);
  --pp-neon: #5ad4e8;
  --pp-on-dark: rgba(255, 255, 255, 0.86);
  --pp-on-dark-soft: rgba(255, 255, 255, 0.62);
  /* 渡芽绿 */
  --ya-green: #36a545;
  --ya-green-dark: #2b8a39;
  --ya-green-10: rgba(54, 165, 69, 0.10);
  --ya-green-16: rgba(54, 165, 69, 0.16);
  --ya-green-24: rgba(54, 165, 69, 0.24);
  --ya-bg: #eef8e3;
  --ya-bg-2: #e2f2d3;
  --ya-ink: #101410;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--pp-nav-h) + 72px); }
body.pp-body {
  font-family: var(--pp-font);
  background: var(--pp-bg);
  color: var(--pp-ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
main.pp2026 img { max-width: 100%; display: block; }
main.pp2026 a { color: inherit; text-decoration: none; }
main.pp2026 ul { list-style: none; }
main.pp2026 h1, main.pp2026 h2, main.pp2026 h3, main.pp2026 h4 { font-family: var(--pp-font); color: inherit; line-height: 1.25; }
main.pp2026 h3 { font-size: 22px; font-weight: 700; margin: 0; }
.pp2026 :where(p) { font-size: 17px; }
::selection { background: var(--pp-accent-50); color: #fff; }
@media (max-width: 860px) { :root { --pp-nav-h: 64px; } }

.pp-container { max-width: 1180px; margin: 0 auto; padding: 0 32px; }
.pp-wide { max-width: 1360px; margin: 0 auto; padding: 0 32px; }

/* ---------- 按钮 ---------- */
.pp-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 30px; border-radius: 999px;
  font-family: var(--pp-font); font-size: 16px; font-weight: 700;
  border: 2px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .25s, box-shadow .25s, background .25s, color .25s, border-color .25s;
}
.pp-btn-lg { padding: 16px 36px; font-size: 17px; }
.pp-btn-primary { background: var(--pp-accent-dark); color: #fff; }
.pp-btn-primary:hover { transform: translateY(-2px); box-shadow: var(--pp-glow); background: #2c7482; }
.pp-btn-ghost { border-color: var(--pp-accent); color: var(--pp-accent-dark); background: transparent; }
.pp-btn-ghost:hover { background: var(--pp-accent-10); transform: translateY(-2px); }
.pp-btn-light { background: #fff; color: var(--pp-ink); border-color: #fff; }
.pp-btn-light:hover { transform: translateY(-2px); box-shadow: var(--pp-shadow-lift); }
.pp-btn-dark { background: var(--pp-ink); color: #fff; }
.pp-btn-dark:hover { transform: translateY(-2px); background: #1d2a2e; box-shadow: var(--pp-shadow-lift); }
.pp-btn .arr { transition: transform .25s; }
.pp-btn:hover .arr { transform: translateX(4px); }
/* 站点有 .site-805 a / main.pp2026 a { color: inherit }，按钮文字色需更高优先级 */
main.pp2026 .pp-btn-primary, main.pp2026 .pp-btn-dark { color: #fff; }
main.pp2026 .pp-btn-light { color: var(--pp-ink); }
main.pp2026 .pp-btn-ghost { color: var(--pp-accent-dark); }
main.pp2026.theme-ya .pp-btn-ghost { color: var(--ya-green-dark); }
main.pp2026.theme-ai .pp-btn-ghost { color: var(--pp-neon); }
.pp-btn:focus-visible { outline: 3px solid var(--pp-accent-50); outline-offset: 3px; }
.theme-ya .pp-btn-primary { background: var(--ya-green-dark); }
.theme-ya .pp-btn-primary:hover { background: #237030; box-shadow: 0 8px 36px rgba(54, 165, 69, 0.45); }
.theme-ya .pp-btn-ghost { border-color: var(--ya-green); color: var(--ya-green-dark); }
.theme-ya .pp-btn-ghost:hover { background: var(--ya-green-10); }
.theme-ai .pp-btn-ghost { border-color: var(--pp-neon); color: var(--pp-neon); }
.theme-ai .pp-btn-ghost:hover { background: rgba(90, 212, 232, 0.12); }

/* ---------- 文字体系 ---------- */
.kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13.5px; font-weight: 700; letter-spacing: .18em;
  color: var(--pp-accent-dark); text-transform: uppercase; margin-bottom: 18px;
}
.kicker::before { content: ''; width: 26px; height: 2px; background: var(--pp-accent); }
.theme-ya .kicker { color: var(--ya-green-dark); }
.theme-ya .kicker::before { background: var(--ya-green); }
.section-dark .kicker { color: var(--pp-neon); }
.section-dark .kicker::before { background: var(--pp-neon); }

.section { padding: 96px 0; position: relative; }
.section-tint { background: var(--pp-cube); }
.theme-ya .section-tint { background: var(--ya-bg-2); }
.section-dark { background: var(--pp-dark); color: var(--pp-on-dark); }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p { color: var(--pp-on-dark-soft); }
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .kicker { justify-content: center; }
.section-head h2 { font-size: clamp(30px, 3.6vw, 44px); line-height: 1.22; letter-spacing: -.005em; }
.section-head p { margin-top: 16px; color: var(--pp-ink-soft); font-size: 17px; line-height: 1.8; }
.section-dark .section-head p { color: var(--pp-on-dark-soft); }
.hl { color: var(--pp-accent-dark); }
.theme-ya .hl { color: var(--ya-green-dark); }
.theme-ai .hl { color: var(--pp-neon); }

/* ---------- Hero 通用 ---------- */
.pp-hero { position: relative; overflow: hidden; padding: calc(var(--pp-nav-h) + 72px) 0 72px; }
.hero-blob {
  position: absolute; border-radius: 50%; filter: blur(80px);
  background: var(--pp-accent-20); pointer-events: none;
  animation: blob-drift 14s ease-in-out infinite alternate;
}
.hero-blob.b1 { width: 560px; height: 560px; top: -200px; right: -140px; }
.hero-blob.b2 { width: 400px; height: 400px; bottom: -180px; left: -120px; animation-delay: -6s; }
@keyframes blob-drift { from { transform: translate(0, 0) scale(1); } to { transform: translate(-40px, 30px) scale(1.12); } }
.hero-grid {
  position: absolute; inset: 0; pointer-events: none; opacity: .38;
  background-image: linear-gradient(var(--pp-accent-10) 1px, transparent 1px), linear-gradient(90deg, var(--pp-accent-10) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 75%);
}
.hero-inner { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.hero-inner > * { min-width: 0; }
.hero-inner.cols-ai { grid-template-columns: .9fr 1.1fr; }
.pp-hero h1 { font-size: clamp(38px, 4.9vw, 60px); line-height: 1.14; letter-spacing: -.01em; }
.hero-lede { margin: 22px 0 30px; font-size: 18px; color: var(--pp-ink-soft); max-width: 560px; line-height: 1.8; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero-cta .pp-btn { min-height: 56px; padding-top: 4px; padding-bottom: 4px; }
.hero-note { margin-top: 14px; font-size: 13.5px; color: var(--pp-muted); }
.trust-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.trust-chips span {
  padding: 6px 14px; border-radius: 999px; font-size: 13.5px;
  background: rgba(255, 255, 255, .7); border: 1px solid var(--pp-accent-20); color: var(--pp-ink-soft);
}
.trust-chips span::before { content: '✓ '; color: var(--pp-accent-dark); font-weight: 700; }
.theme-ya .trust-chips span::before { color: var(--ya-green-dark); }
.theme-ya .trust-chips span { border-color: var(--ya-green-24); }
.hero-visual { position: relative; }

/* 三个承诺（SaaS） */
.hero-promises { display: flex; gap: 12px; margin: 26px 0 8px; flex-wrap: wrap; }
.promise {
  flex: 1 1 140px; padding: 14px 16px; border-radius: 16px;
  background: rgba(255, 255, 255, .72); border: 1.5px solid var(--pp-accent-20);
  backdrop-filter: blur(6px);
}
.promise b { display: block; font-size: 22px; color: var(--pp-accent-dark); letter-spacing: .02em; }
.promise small { display: block; font-size: 12.5px; color: var(--pp-muted); margin-top: 2px; line-height: 1.5; }

/* 深色 Hero（AI） */
.pp-hero.hero-ai { background: radial-gradient(ellipse 80% 60% at 70% 20%, #16343d 0%, var(--pp-dark) 62%); color: var(--pp-on-dark); }
.hero-ai .hero-grid { opacity: .22; background-image: linear-gradient(var(--pp-dark-line) 1px, transparent 1px), linear-gradient(90deg, var(--pp-dark-line) 1px, transparent 1px); }
.hero-ai .hero-blob { background: rgba(90, 212, 232, 0.14); }
.hero-ai h1 { color: #fff; }
.hero-ai .hero-lede { color: var(--pp-on-dark-soft); }
.hero-ai .trust-chips span { background: rgba(255, 255, 255, .06); border-color: var(--pp-dark-line); color: var(--pp-on-dark-soft); }
.hero-ai .trust-chips span::before { color: var(--pp-neon); }
.hero-ai .hero-note { color: rgba(255, 255, 255, .45); }

/* 渡芽 Hero */
.pp-hero.hero-ya { background: linear-gradient(180deg, var(--ya-bg) 0%, var(--pp-bg) 100%); }
.hero-ya .hero-blob { background: var(--ya-green-16); }
.hero-ya .hero-grid { background-image: linear-gradient(var(--ya-green-10) 1px, transparent 1px), linear-gradient(90deg, var(--ya-green-10) 1px, transparent 1px); }

/* ---------- 窗口框 / 手机壳 / 浮动芯片 ---------- */
.app-frame {
  background: #fff; border-radius: 16px;
  border: 1px solid rgba(16, 20, 22, .08);
  box-shadow: 0 30px 80px rgba(16, 20, 22, .18), 0 2px 6px rgba(16, 20, 22, .06);
  overflow: hidden; position: relative;
}
.app-frame-bar {
  display: flex; align-items: center; gap: 6px; padding: 10px 14px;
  background: #f4f8f9; border-bottom: 1px solid #e3edf0;
}
.app-frame-bar i { width: 10px; height: 10px; border-radius: 50%; background: #d5e3e7; }
.app-frame-bar i:first-child { background: var(--pp-accent-50); }
.app-frame-bar .addr {
  flex: 1; margin-left: 10px; height: 20px; border-radius: 999px;
  background: #e9f1f3; font-size: 11px; color: var(--pp-muted);
  display: flex; align-items: center; padding: 0 12px; font-style: normal;
}
.app-frame-body { position: relative; background: #eef3f5; }
.app-frame-body img, .app-frame-body video { width: 100%; height: auto; display: block; }
.app-frame.is-tilt { transition: transform .2s ease-out; will-change: transform; }
.app-frame-dark { background: var(--pp-dark-2); border-color: var(--pp-dark-line); }
.app-frame-dark .app-frame-bar { background: #0d1c22; border-color: rgba(255, 255, 255, .06); }
.app-frame-dark .app-frame-bar .addr { background: rgba(255, 255, 255, .06); color: rgba(255, 255, 255, .5); }
.app-frame-dark .app-frame-body { background: #0d1c22; }

.float-chip {
  position: absolute; z-index: 3;
  display: flex; align-items: center; gap: 11px;
  background: #fff; border: 1.5px solid var(--pp-accent-20);
  border-radius: 14px; box-shadow: var(--pp-shadow-lift);
  padding: 11px 16px 11px 12px; line-height: 1.4;
  animation: chip-float 5s ease-in-out infinite alternate;
}
.float-chip .dot {
  flex: 0 0 auto; width: 38px; height: 38px; border-radius: 11px;
  background: var(--pp-accent-16); color: var(--pp-accent-dark);
  display: flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 700;
}
.float-chip b { display: block; font-size: 13.5px; color: var(--pp-ink); }
.float-chip small { display: block; font-size: 11.5px; color: var(--pp-muted); }
.float-chip.fc1 { top: -18px; left: -26px; }
.float-chip.fc2 { bottom: -18px; right: -26px; animation-delay: -2.5s; }
.float-chip.fc3 { top: 40%; right: -30px; animation-delay: -1.2s; }
.theme-ya .float-chip { border-color: var(--ya-green-24); }
.theme-ya .float-chip .dot { background: var(--ya-green-16); color: var(--ya-green-dark); }
.float-chip.ok .dot { background: rgba(54, 165, 69, .16); color: #2b8a39; }
@keyframes chip-float { from { transform: translateY(0); } to { transform: translateY(-12px); } }

.phone {
  width: 300px; margin: 0 auto; border-radius: 44px;
  border: 9px solid #0f1416; background: #0f1416;
  box-shadow: 0 30px 70px rgba(16, 20, 22, .28), inset 0 0 0 2px #2a3236;
  overflow: hidden; position: relative;
}
.phone::before {
  content: ''; position: absolute; top: 10px; left: 50%; transform: translateX(-50%);
  width: 96px; height: 26px; background: #0f1416; border-radius: 999px; z-index: 3;
}
.phone-screen { aspect-ratio: 390 / 844; overflow: hidden; background: #eef8e3; position: relative; border-radius: 34px; }
.phone-screen img { width: 100%; height: 100%; object-fit: cover; object-position: top; position: absolute; inset: 0; }
.phone-screen img.is-active { opacity: 1; }
.phone-screen.fade img { opacity: 0; transition: opacity .55s ease; }
.phone-screen.fade img.is-active { opacity: 1; }
.phone-sm { width: 220px; }
.phone-sm::before { width: 70px; height: 20px; top: 8px; }
.phone-sm .phone-screen { border-radius: 26px; }
.phone-scroll img { position: absolute; top: 0; height: auto; object-fit: initial; animation: none; }
.phone-scroll:hover img, .phone-scroll.is-playing img { animation: phone-scroll 12s ease-in-out infinite alternate; }
@keyframes phone-scroll { 0% { transform: translateY(0); } 100% { transform: translateY(calc(-100% + 844px * var(--phone-scale, 0.77))); } }

/* ---------- 数字条 ---------- */
.stat-band { padding: 26px 0 8px; position: relative; z-index: 2; }
.stat-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  background: rgba(255, 255, 255, .72); backdrop-filter: blur(8px);
  border: 2px solid var(--pp-accent-20); border-radius: var(--pp-r-l); padding: 28px 24px;
}
.stat { text-align: center; position: relative; }
.stat + .stat::before { content: ''; position: absolute; left: -9px; top: 14%; bottom: 14%; width: 1px; background: var(--pp-accent-20); }
.stat b { display: block; font-size: 50px; line-height: 1.15; color: var(--pp-accent-dark); font-weight: 700; letter-spacing: -.01em; }
.stat b i { font-style: normal; font-size: 16px; font-weight: 400; color: var(--pp-muted); margin-left: 5px; }
.stat b.txt { font-size: 24px; padding: 15px 0 7px; letter-spacing: .04em; }
.stat > span { font-size: 14px; color: var(--pp-muted); }
.theme-ya .stat b { color: var(--ya-green-dark); }
.theme-ya .stat-row { border-color: var(--ya-green-24); }
.stat-row.on-dark { background: rgba(255, 255, 255, .04); border-color: var(--pp-dark-line); }
.stat-row.on-dark .stat b { color: var(--pp-neon); }
.stat-row.on-dark .stat > span, .stat-row.on-dark .stat b i { color: var(--pp-on-dark-soft); }
.stat-band.in-dark { background: var(--pp-dark); margin-top: 0; padding: 0 0 56px; }

/* ---------- 卡片 ---------- */
.cards { display: grid; gap: 22px; }
.cards.c2 { grid-template-columns: repeat(2, 1fr); }
.cards.c3 { grid-template-columns: repeat(3, 1fr); }
.cards.c4 { grid-template-columns: repeat(4, 1fr); }
main.pp2026 .card {
  background: var(--pp-card); border: 2px solid var(--pp-accent-20);
  border-radius: var(--pp-r-l); padding: 30px 28px;
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
main.pp2026 .card:hover { transform: translateY(-6px); box-shadow: var(--pp-shadow-lift); border-color: var(--pp-accent-50); }
main.pp2026 .card .ico {
  width: 48px; height: 48px; border-radius: 14px;
  background: var(--pp-accent-16); color: var(--pp-accent-dark);
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
main.pp2026 .card .ico svg { width: 24px; height: 24px; }
main.pp2026 .card h4 { font-size: 18.5px; margin-bottom: 8px; font-weight: 700; }
main.pp2026 .card p { font-size: 15px; color: var(--pp-ink-soft); }
main.pp2026 .card .tagline { margin-top: 12px; font-size: 13px; color: var(--pp-accent-dark); font-weight: 700; }
.theme-ya main.pp2026 .card, main.pp2026.theme-ya .card { border-color: var(--ya-green-24); background: #fbfef7; }
main.pp2026.theme-ya .card:hover { border-color: var(--ya-green); }
main.pp2026.theme-ya .card .ico { background: var(--ya-green-16); color: var(--ya-green-dark); }
main.pp2026.theme-ya .card .tagline { color: var(--ya-green-dark); }
.section-dark .card { background: rgba(255, 255, 255, .04); border-color: var(--pp-dark-line); color: var(--pp-on-dark); }
.section-dark .card:hover { border-color: var(--pp-neon); box-shadow: 0 14px 40px rgba(0, 0, 0, .35); }
.section-dark .card .ico { background: rgba(90, 212, 232, .14); color: var(--pp-neon); }
.section-dark .card p { color: var(--pp-on-dark-soft); }
.section-dark .card h4 { color: #fff; }

.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  padding: 8px 18px; border-radius: 999px; font-size: 14.5px;
  background: #fff; border: 2px solid var(--pp-accent-20); color: var(--pp-ink-soft);
  transition: border-color .25s, color .25s, transform .25s;
}
.chip:hover { border-color: var(--pp-accent); color: var(--pp-accent-dark); transform: translateY(-2px); }

/* ---------- 图文交替模块 ---------- */
.feature-module { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; padding: 44px 0; }
.feature-module.reverse .fm-copy { order: 2; }
.feature-module.reverse .fm-visual { order: 1; }
.pp-module-label { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .16em; color: var(--pp-accent-dark); margin-bottom: 12px; }
.theme-ya .pp-module-label { color: var(--ya-green-dark); }
.fm-copy h3 { font-size: 27px; margin-bottom: 14px; line-height: 1.35; }
.fm-copy > p { color: var(--pp-ink-soft); font-size: 16px; }
.section-dark .fm-copy > p { color: var(--pp-on-dark-soft); }
.evidence { margin-top: 20px; display: grid; gap: 10px; }
.evidence li { padding: 2px 0 2px 16px; border-left: 3px solid var(--pp-accent); font-size: 15px; color: var(--pp-ink-soft); line-height: 1.65; }
.theme-ya .evidence li { border-color: var(--ya-green); }
.section-dark .evidence li { border-color: var(--pp-neon); color: var(--pp-on-dark-soft); }
.pub-tag { display: inline-block; margin-top: 18px; padding: 5px 14px; border-radius: 999px; background: var(--pp-accent-16); color: var(--pp-accent-dark); font-size: 13px; font-weight: 700; }
.section-dark .pub-tag { background: rgba(90, 212, 232, .14); color: var(--pp-neon); }
.fm-visual { position: relative; }
.fm-visual > img, .fm-visual .app-frame { position: relative; z-index: 1; }
.fm-visual > img { border-radius: var(--pp-r-s); border: 2px solid var(--pp-cube-strong); box-shadow: var(--pp-shadow); width: 100%; transition: transform .4s ease, box-shadow .4s ease; }
.fm-visual:hover > img { transform: translateY(-6px); box-shadow: var(--pp-shadow-lift); }
.fm-num { position: absolute; top: -52px; right: -10px; z-index: 0; font-size: 116px; font-weight: 700; line-height: 1; color: var(--pp-accent); opacity: .15; pointer-events: none; }
.mock-note { margin-top: 10px; font-size: 12.5px; color: var(--pp-muted); text-align: center; }
.img-duo { display: grid; gap: 16px; }
.img-duo.side { grid-template-columns: 1fr 1fr; align-items: start; }
.img-duo figure { margin: 0; }
.img-duo img { width: 100%; border-radius: var(--pp-r-s); border: 2px solid var(--pp-cube-strong); box-shadow: var(--pp-shadow); transition: transform .35s ease, box-shadow .35s ease; }
.img-duo figure:hover img { transform: translateY(-4px); box-shadow: var(--pp-shadow-lift); }
.img-duo figcaption { margin-top: 8px; font-size: 12.5px; color: var(--pp-muted); text-align: center; }

/* ---------- 网络开关演示（SaaS） ---------- */
.net-demo { display: grid; grid-template-columns: 340px 1fr; gap: 40px; align-items: start; }
.net-panel {
  background: #fff; border: 2px solid var(--pp-accent-20); border-radius: var(--pp-r-l);
  padding: 30px 28px; position: sticky; top: calc(var(--pp-nav-h) + 24px);
}
.net-panel h3 { font-size: 22px; margin-bottom: 6px; }
.net-panel > p { font-size: 14.5px; color: var(--pp-ink-soft); line-height: 1.65; }
.net-switch {
  display: flex; align-items: center; gap: 14px; margin: 22px 0 18px;
  background: none; border: 0; cursor: pointer; font-family: var(--pp-font); color: var(--pp-ink);
}
.net-switch-track {
  position: relative; width: 74px; height: 40px; border-radius: 999px;
  background: #cfe0e5; transition: background .3s; flex: 0 0 auto;
}
.net-switch-knob {
  position: absolute; top: 4px; left: 4px; width: 32px; height: 32px; border-radius: 50%;
  background: #fff; box-shadow: 0 2px 6px rgba(0, 0, 0, .2); transition: transform .3s cubic-bezier(.4, 0, .2, 1);
}
.net-demo.is-online .net-switch-track { background: var(--pp-accent); }
.net-demo.is-online .net-switch-knob { transform: translateX(34px); }
.net-switch-label { font-size: 16px; font-weight: 700; }
.net-switch-label small { display: block; font-size: 12.5px; color: var(--pp-muted); font-weight: 400; }
.net-status {
  display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 12px;
  background: var(--pp-cube); font-size: 13.5px; color: var(--pp-ink-soft); line-height: 1.5;
}
.net-status i { width: 10px; height: 10px; border-radius: 50%; background: #e0a100; flex: 0 0 auto; box-shadow: 0 0 0 4px rgba(224, 161, 0, .18); animation: pulse 1.6s infinite; }
.net-demo.is-online .net-status i { background: var(--pp-accent); box-shadow: 0 0 0 4px var(--pp-accent-20); }
@keyframes pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.25); } }
.net-groups { display: grid; gap: 22px; }
.net-group { background: rgba(255, 255, 255, .6); border: 2px solid var(--pp-accent-20); border-radius: var(--pp-r-l); padding: 22px 22px 18px; transition: opacity .35s, border-color .35s, background .35s; }
.net-group-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; gap: 12px; flex-wrap: wrap; }
.net-group-head h4 { font-size: 17px; }
.net-group-head span { font-size: 12.5px; padding: 3px 10px; border-radius: 999px; background: var(--pp-accent-16); color: var(--pp-accent-dark); font-weight: 700; }
.net-tiles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.net-tile {
  position: relative; display: flex; align-items: center; gap: 10px;
  padding: 12px 12px; border-radius: 12px; background: #fff; border: 1.5px solid var(--pp-cube-strong);
  font-size: 14px; font-weight: 700; color: var(--pp-ink); transition: opacity .35s, filter .35s, transform .35s, border-color .35s;
}
.net-tile svg { width: 20px; height: 20px; color: var(--pp-accent-dark); flex: 0 0 auto; }
.net-tile i { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); width: 8px; height: 8px; border-radius: 50%; background: #3fbf6f; box-shadow: 0 0 0 3px rgba(63, 191, 111, .2); }
.net-tile em { font-style: normal; font-size: 11px; color: var(--pp-muted); font-weight: 400; display: block; line-height: 1.3; }
.net-tile .ttl { display: block; }
.net-demo:not(.is-online) .net-group.needs-net { opacity: .55; border-style: dashed; background: rgba(255, 255, 255, .3); }
.net-demo:not(.is-online) .net-group.needs-net .net-tile { filter: grayscale(1); opacity: .6; }
.net-demo:not(.is-online) .net-group.needs-net .net-tile i { background: #b9c6ca; box-shadow: none; }
.net-demo:not(.is-online) .net-group.needs-net .net-group-head span { background: #eef2f3; color: var(--pp-muted); }
.net-demo:not(.is-online) .net-group.needs-net .net-group-head span::before { content: '已断网 · '; }
html[lang="en"] .net-demo:not(.is-online) .net-group.needs-net .net-group-head span::before { content: 'Offline · '; }
.net-demo.is-online .net-group.local .net-tile i { background: #3fbf6f; }
.net-tile.blink { animation: tile-in .5s ease both; }
@keyframes tile-in { from { transform: scale(.96); opacity: .4; } to { transform: scale(1); opacity: 1; } }
.net-panel .net-foot { margin-top: 18px; font-size: 13.5px; color: var(--pp-muted); line-height: 1.65; }

/* ---------- 功能巡游（粘性截图） ---------- */
.tour { display: grid; grid-template-columns: minmax(0, 420px) minmax(0, 1fr); gap: 56px; align-items: start; }
.tour-steps { display: grid; gap: 18px; }
.tour-step {
  padding: 24px 26px; border-radius: var(--pp-r-l); border: 2px solid transparent; background: transparent;
  transition: background .35s, border-color .35s, transform .35s; cursor: pointer;
}
.tour-step h3 { font-size: 21px; margin-bottom: 8px; display: flex; align-items: center; gap: 12px; }
.tour-step h3 .no { font-size: 12.5px; font-weight: 700; color: var(--pp-accent-dark); background: var(--pp-accent-16); padding: 3px 9px; border-radius: 999px; letter-spacing: .06em; }
.tour-step p { font-size: 15px; color: var(--pp-ink-soft); }
.tour-step .evidence { margin-top: 12px; gap: 6px; max-height: 0; overflow: hidden; opacity: 0; transition: max-height .45s ease, opacity .35s ease, margin .35s; margin-top: 0; }
.tour-step.is-active { background: #fff; border-color: var(--pp-accent-20); box-shadow: var(--pp-shadow-lift); }
.tour-step.is-active .evidence { max-height: 240px; opacity: 1; margin-top: 12px; }
.tour-stage { position: sticky; top: calc(var(--pp-nav-h) + 28px); }
.tour-stage .app-frame-body { aspect-ratio: 1440 / 900; }
.tour-shot img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top left; opacity: 0; transition: opacity .5s ease, transform .6s ease; transform: scale(1.01); }
.tour-shot img.is-active { opacity: 1; transform: scale(1); }
.tour-caption { margin-top: 14px; display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 13.5px; color: var(--pp-muted); }
.tour-caption b { color: var(--pp-ink-soft); }
.tour-dots { display: flex; gap: 6px; }
.tour-dots i { width: 22px; height: 4px; border-radius: 2px; background: var(--pp-cube-strong); transition: background .3s, width .3s; }
.tour-dots i.is-active { background: var(--pp-accent); width: 34px; }

/* ---------- 免费 / 下载 ---------- */
.price-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.price-zero { font-size: clamp(88px, 12vw, 160px); line-height: 1; font-weight: 700; color: var(--pp-accent-dark); letter-spacing: -.04em; display: flex; align-items: flex-start; gap: 6px; }
.price-zero small { font-size: .28em; margin-top: .35em; letter-spacing: 0; color: var(--pp-ink-soft); }
.price-sub { font-size: 18px; color: var(--pp-ink-soft); margin-top: 6px; }
.price-list { display: grid; gap: 12px; margin-top: 24px; }
.price-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 16px; color: var(--pp-ink); }
.price-list li::before { content: '✓'; flex: 0 0 26px; height: 26px; border-radius: 50%; background: var(--pp-accent); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; margin-top: 2px; }
.price-vs { background: #fff; border: 2px solid var(--pp-accent-20); border-radius: var(--pp-r-l); padding: 28px 30px; }
.price-vs h4 { font-size: 15px; letter-spacing: .12em; color: var(--pp-muted); margin-bottom: 16px; font-weight: 700; }
.price-vs table { width: 100%; border-collapse: collapse; font-size: 15px; }
.price-vs th, .price-vs td { padding: 12px 8px; border-bottom: 1px solid var(--pp-cube); text-align: left; vertical-align: top; }
.price-vs th { font-size: 13px; color: var(--pp-muted); font-weight: 700; }
.price-vs td.yes { color: var(--pp-accent-dark); font-weight: 700; }
.price-vs td.no { color: var(--pp-muted); }
.price-vs tr:last-child td { border-bottom: 0; }

.download-card {
  background: var(--pp-ink); color: #fff; border-radius: var(--pp-r-l);
  padding: 56px 56px; display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; position: relative; overflow: hidden;
}
.download-card::before { content: ''; position: absolute; right: -80px; top: -80px; width: 320px; height: 320px; border-radius: 50%; background: var(--pp-accent-20); filter: blur(60px); }
.download-card h2 { font-size: clamp(26px, 3vw, 36px); line-height: 1.3; }
.download-card p { margin-top: 12px; color: rgba(255, 255, 255, .72); font-size: 15.5px; }
.dl-meta { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 18px; font-size: 13.5px; color: rgba(255, 255, 255, .6); }
.dl-meta b { color: #fff; font-weight: 700; }
.dl-side { position: relative; display: grid; gap: 14px; justify-items: center; text-align: center; }
.dl-icon { width: 96px; height: 96px; border-radius: 26px; background: rgba(255, 255, 255, .08); border: 1.5px solid rgba(255, 255, 255, .14); display: grid; place-items: center; }
.dl-icon svg { width: 46px; height: 46px; color: var(--pp-neon); }
.dl-side small { font-size: 13px; color: rgba(255, 255, 255, .55); }
.pp-btn.is-fake { position: relative; }
.pp-toast {
  position: fixed; left: 50%; bottom: 32px; transform: translate(-50%, 20px);
  background: var(--pp-ink); color: #fff; padding: 12px 20px; border-radius: 999px; font-size: 14px;
  box-shadow: var(--pp-shadow-lift); opacity: 0; pointer-events: none; z-index: 2000; transition: opacity .3s, transform .3s;
}
.pp-toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- AI 分析演示（Hero） ---------- */
.analyzer { display: grid; grid-template-columns: 1fr; gap: 0; background: #0a1417; border: 1px solid var(--pp-dark-line); border-radius: 18px; overflow: hidden; box-shadow: 0 30px 80px rgba(0, 0, 0, .5); }
.analyzer-stage { position: relative; background: #05090b; display: flex; align-items: center; }
.an-frame { position: relative; width: 100%; --u: 4; }
.analyzer-stage img { width: 100%; height: auto; display: block; opacity: .96; }
.analyzer-stage svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.an-tooth { fill: rgba(90, 212, 232, .10); stroke: rgba(255, 255, 255, .85); stroke-width: calc(1.2px * var(--u)); stroke-dasharray: 3000; stroke-dashoffset: 3000; opacity: 0; }
.an-tooth.on { animation: draw-path 1.1s ease forwards; }
.an-fdi { fill: rgba(255, 255, 255, .95); font-family: var(--pp-font); font-weight: 700; font-size: calc(8px * var(--u)); text-anchor: middle; opacity: 0; transition: opacity .4s; }
.an-fdi.on { opacity: 1; }
.an-find { opacity: 0; transform-origin: center; transition: opacity .35s; }
.an-find.on { opacity: 1; }
.an-find path, .an-find rect { fill: rgba(255, 99, 99, .22); stroke: #ff6a6a; stroke-width: calc(1.8px * var(--u)); }
.an-find.c1 path, .an-find.c1 rect { fill: rgba(255, 180, 60, .22); stroke: #ffb43c; }
.an-find.c2 path, .an-find.c2 rect { fill: rgba(90, 212, 232, .2); stroke: var(--pp-neon); }
.an-find.c3 path, .an-find.c3 rect { fill: rgba(168, 118, 255, .22); stroke: #a876ff; }
.an-find.c4 path, .an-find.c4 rect { fill: rgba(60, 200, 140, .22); stroke: #3cc88c; }
.an-label rect { fill: #ff6a6a; stroke: none; }
.an-find.c1 .an-label rect { fill: #ffb43c; } .an-find.c2 .an-label rect { fill: var(--pp-neon); } .an-find.c3 .an-label rect { fill: #a876ff; } .an-find.c4 .an-label rect { fill: #3cc88c; }
.an-label text { fill: #0b1518; font-family: var(--pp-font); font-weight: 700; font-size: calc(10px * var(--u)); }
.an-scan { position: absolute; left: 0; right: 0; top: 0; height: 2px; background: linear-gradient(90deg, transparent, var(--pp-neon), transparent); box-shadow: 0 0 18px var(--pp-neon); opacity: 0; }
.an-scan.on { animation: scan 1.4s ease-in-out forwards; }
@keyframes scan { 0% { top: 0; opacity: 1; } 100% { top: 100%; opacity: 0; } }
@keyframes draw-path { to { stroke-dashoffset: 0; opacity: 1; } }
.analyzer-panel { background: #0d1c22; border-top: 1px solid var(--pp-dark-line); padding: 18px 18px 16px; display: flex; flex-direction: column; gap: 14px; }
.an-steps { display: grid; gap: 8px; grid-template-columns: repeat(2, 1fr); }
.an-step { display: flex; align-items: center; gap: 10px; font-size: 13px; color: rgba(255, 255, 255, .5); padding: 8px 10px; border-radius: 10px; border: 1px solid transparent; transition: all .35s; }
.an-step i { width: 18px; height: 18px; border-radius: 50%; border: 1.5px solid rgba(255, 255, 255, .25); display: grid; place-items: center; font-style: normal; font-size: 10px; flex: 0 0 auto; }
.an-step.on { color: #fff; border-color: var(--pp-dark-line); background: rgba(90, 212, 232, .08); }
.an-step.on i { background: var(--pp-neon); border-color: var(--pp-neon); color: #0b1518; }
.an-step.done { color: rgba(255, 255, 255, .8); }
.an-step.done i { background: rgba(90, 212, 232, .25); border-color: transparent; color: var(--pp-neon); }
.an-log { flex: 1; background: #07121a; border-radius: 10px; padding: 12px 14px; font-family: var(--pp-mono); font-size: 12px; line-height: 1.7; color: #a8d5df; overflow-x: auto; min-height: 96px; white-space: pre; }
.an-log .k { color: #7fd0e0; } .an-log .s { color: #a8e6a3; } .an-log .n { color: #f0c674; } .an-log .d { color: #5d7d86; }
.an-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 11.5px; color: rgba(255, 255, 255, .45); }
.an-replay { background: none; border: 1px solid var(--pp-dark-line); color: var(--pp-neon); padding: 8px 14px; border-radius: 999px; font-size: 12.5px; cursor: pointer; font-family: var(--pp-font); }
.an-replay:hover { background: rgba(90, 212, 232, .12); }
.analyzer-caption { margin-top: 12px; font-size: 12.5px; color: rgba(255, 255, 255, .45); text-align: center; }

/* ---------- 模态切换器 ---------- */
.ms-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 26px; }
.ms-tab {
  padding: 10px 18px; border-radius: 999px; font-family: var(--pp-font); font-size: 14.5px; font-weight: 700;
  background: rgba(255, 255, 255, .05); border: 1.5px solid var(--pp-dark-line); color: var(--pp-on-dark-soft); cursor: pointer; transition: all .25s;
}
.ms-tab:hover { color: #fff; border-color: rgba(90, 212, 232, .5); }
.ms-tab.is-active { background: var(--pp-neon); color: #0b1518; border-color: var(--pp-neon); }
.ms-panel { display: none; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: 32px; align-items: start; }
.ms-panel.is-active { display: grid; animation: fade-up .45s ease; }
@keyframes fade-up { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.ms-media { position: relative; border-radius: 16px; overflow: hidden; border: 1px solid var(--pp-dark-line); background: #05090b; box-shadow: 0 24px 60px rgba(0, 0, 0, .45); }
.ms-media img { width: 100%; display: block; }
.ms-media .tag { position: absolute; left: 14px; top: 14px; font-size: 12px; padding: 4px 10px; border-radius: 999px; background: rgba(11, 21, 24, .7); border: 1px solid var(--pp-dark-line); color: var(--pp-neon); backdrop-filter: blur(6px); }
.ms-facts h3 { font-size: 24px; color: #fff; margin-bottom: 10px; }
.ms-facts > p { color: var(--pp-on-dark-soft); font-size: 15.5px; }
.ms-kv { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 18px; }
.ms-kv div { background: rgba(255, 255, 255, .04); border: 1px solid var(--pp-dark-line); border-radius: 12px; padding: 12px 14px; }
.ms-kv b { display: block; font-size: 22px; color: var(--pp-neon); line-height: 1.2; }
.ms-kv small { font-size: 12px; color: var(--pp-on-dark-soft); }
.ms-facts .evidence { margin-top: 18px; }

/* ---------- 3D 查看器 ---------- */
.pp-3d { position: relative; border-radius: 18px; overflow: hidden; background: radial-gradient(ellipse at 50% 40%, #16323a 0%, #08131a 70%); border: 1px solid var(--pp-dark-line); min-height: 380px; aspect-ratio: 16 / 10; }
.pp-3d canvas { display: block; width: 100%; height: 100%; touch-action: pan-y; outline: none; }
.pp-3d-ui { position: absolute; left: 0; right: 0; bottom: 0; padding: 14px 16px; background: linear-gradient(180deg, rgba(8, 19, 26, 0) 0%, rgba(8, 19, 26, .85) 60%); display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.pp-3d-ui label { font-size: 12.5px; color: var(--pp-on-dark-soft); white-space: nowrap; }
.pp-3d-ui input[type=range] { flex: 1; min-width: 140px; accent-color: var(--pp-neon); }
.pp-3d-ui .val { font-family: var(--pp-mono); font-size: 13px; color: var(--pp-neon); min-width: 44px; text-align: right; }
.pp-3d-ui .ctrl { display: flex; gap: 6px; }
.pp-3d-ui button { background: rgba(255, 255, 255, .06); border: 1px solid var(--pp-dark-line); color: #fff; padding: 9px 13px; border-radius: 999px; font-size: 12.5px; cursor: pointer; font-family: var(--pp-font); transition: background .25s; }
.pp-3d-ui button:hover, .pp-3d-ui button.is-active { background: rgba(90, 212, 232, .2); border-color: var(--pp-neon); }
.pp-3d-hint { position: absolute; right: 14px; top: 12px; font-size: 12px; color: rgba(255, 255, 255, .62); background: rgba(8, 19, 26, .55); padding: 4px 10px; border-radius: 999px; border: 1px solid var(--pp-dark-line); backdrop-filter: blur(6px); pointer-events: none; }
.pp-3d-loading { position: absolute; inset: 0; display: grid; place-items: center; color: var(--pp-on-dark-soft); font-size: 13.5px; background: rgba(8, 19, 26, .35); transition: opacity .4s; }
.pp-3d.is-ready .pp-3d-loading { opacity: 0; pointer-events: none; }
.pp-3d-loading i { width: 26px; height: 26px; border-radius: 50%; border: 3px solid rgba(90, 212, 232, .25); border-top-color: var(--pp-neon); animation: spin 1s linear infinite; display: block; margin: 0 auto 10px; }
@keyframes spin { to { transform: rotate(360deg); } }
.pp-3d-fallback { position: absolute; inset: 0; display: none; }
.pp-3d-fallback video, .pp-3d-fallback img { width: 100%; height: 100%; object-fit: cover; }
.pp-3d.is-fallback .pp-3d-fallback { display: block; }
.pp-3d.is-fallback canvas, .pp-3d.is-fallback .pp-3d-ui, .pp-3d.is-fallback .pp-3d-loading, .pp-3d.is-fallback .pp-3d-hint { display: none; }
.pp-3d-legend { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 12px; font-size: 12.5px; color: var(--pp-on-dark-soft); }
.pp-3d-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; vertical-align: middle; }
.ortho-layout { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr); gap: 36px; align-items: center; }

/* ---------- 牙周热图 ---------- */
.perio-layout { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: 36px; align-items: start; }
.perio-board { background: rgba(255, 255, 255, .04); border: 1px solid var(--pp-dark-line); border-radius: 18px; padding: 26px 26px 20px; }
.perio-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.perio-head .ok { font-size: 12.5px; padding: 4px 10px; border-radius: 999px; background: rgba(60, 200, 140, .16); color: #6fe3ad; border: 1px solid rgba(60, 200, 140, .3); }
.perio-arch { display: grid; grid-template-columns: 52px 1fr; align-items: center; gap: 12px; margin: 10px 0; }
.perio-arch > span { font-size: 13px; color: var(--pp-on-dark-soft); }
.perio-row { display: grid; grid-template-columns: repeat(14, 1fr); gap: 6px; }
.perio-tooth {
  aspect-ratio: 1; border-radius: 9px; display: grid; place-items: center; font-size: 13px; font-weight: 700;
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .08); color: rgba(255, 255, 255, .5);
  cursor: pointer; transition: transform .25s, background .35s, color .35s, border-color .35s; opacity: 0; transform: translateY(6px); position: relative;
}
.perio-tooth.on { opacity: 1; transform: none; }
.perio-tooth.lv0.on { background: rgba(60, 200, 140, .22); border-color: rgba(60, 200, 140, .45); color: #b9f2d8; }
.perio-tooth.lv1.on { background: rgba(255, 180, 60, .3); border-color: rgba(255, 180, 60, .6); color: #ffe0a8; }
.perio-tooth.lv2.on { background: rgba(255, 99, 99, .32); border-color: rgba(255, 99, 99, .65); color: #ffc6c6; }
.perio-tooth small { position: absolute; bottom: -18px; font-size: 11.5px; color: var(--pp-on-dark-soft); font-weight: 400; }
.perio-tooth:hover, .perio-tooth.is-sel { transform: translateY(-3px) scale(1.06); border-color: var(--pp-neon); }
.perio-row + .perio-row { margin-top: 26px; }
.perio-legend { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 30px; font-size: 12.5px; color: var(--pp-on-dark-soft); }
.perio-legend i { display: inline-block; width: 12px; height: 12px; border-radius: 4px; margin-right: 6px; vertical-align: -1px; }
.perio-detail { margin-top: 18px; background: rgba(255, 255, 255, .04); border: 1px solid var(--pp-dark-line); border-radius: 14px; padding: 16px 18px; }
.perio-detail h4 { font-size: 15px; color: #fff; margin-bottom: 10px; }
.perio-sites { display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px; }
.perio-sites div { text-align: center; background: rgba(255, 255, 255, .04); border-radius: 10px; padding: 8px 4px; }
.perio-sites b { display: block; font-size: 16px; color: var(--pp-neon); font-family: var(--pp-mono); }
.perio-sites small { font-size: 11.5px; color: var(--pp-on-dark-soft); }
.perio-sites div.warn b { color: #ffb43c; }
.perio-slice { border-radius: 16px; overflow: hidden; border: 1px solid var(--pp-dark-line); background: #05090b; }
.perio-slice img { width: 100%; display: block; max-height: 520px; object-fit: cover; object-position: center 35%; }
.perio-slice-cap { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: var(--pp-on-dark-soft); margin-top: 10px; }
.perio-slice-cap i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }

/* ---------- 能力清单 ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cap-card { position: relative; background: #fff; border: 2px solid var(--pp-accent-20); border-radius: 16px; padding: 22px 22px 20px; transition: border-color .25s, transform .25s, box-shadow .25s; }
.cap-card:hover { border-color: var(--pp-accent); transform: translateY(-4px); box-shadow: var(--pp-shadow-lift); }
.cap-card .mod { position: absolute; top: 16px; right: 16px; font-size: 11px; font-weight: 700; letter-spacing: .06em; color: var(--pp-accent-dark); background: var(--pp-accent-10); padding: 2px 9px; border-radius: 999px; }
.cap-card .no { font-size: 12px; color: var(--pp-muted); letter-spacing: .1em; font-weight: 700; }
.cap-card h4 { font-size: 17.5px; margin: 6px 0 8px; padding-right: 64px; }
.cap-card p { font-size: 14.5px; color: var(--pp-ink-soft); line-height: 1.6; }
.cap-card .evidence { margin-top: 12px; gap: 6px; }
.cap-card .evidence li { font-size: 13.5px; padding: 1px 0 1px 12px; border-width: 2px; }
.cap-card .pub-tag { margin-top: 12px; font-size: 12px; padding: 4px 11px; }

/* ---------- 代码卡 ---------- */
.code-card { background: #0d1e23; border-radius: var(--pp-r-s); border: 1px solid rgba(67, 173, 192, .35); box-shadow: var(--pp-shadow-lift); font-family: var(--pp-mono); font-size: 12.5px; line-height: 1.75; color: #c9dfe5; padding: 6px 0 14px; overflow: hidden; }
.code-bar { display: flex; align-items: center; gap: 6px; padding: 10px 16px 12px; border-bottom: 1px solid rgba(67, 173, 192, .18); margin-bottom: 12px; }
.code-bar i { width: 9px; height: 9px; border-radius: 50%; background: rgba(67, 173, 192, .35); }
.code-bar span { margin-left: 8px; font-size: 11.5px; color: #5d7d86; font-family: var(--pp-font); }
.code-card pre { margin: 0; padding: 0 20px; white-space: pre-wrap; font-family: inherit; }
.c-dim { color: #5d7d86; } .c-key { color: #7fd0e0; } .c-str { color: #a8e6a3; } .c-num { color: #f0c674; } .c-method { color: #4fc3d8; font-weight: 700; }

/* ---------- 交付 / 步骤 / 流水线 / 手风琴 / 通知 ---------- */
.deploy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.deploy-card { position: relative; overflow: hidden; background: #fff; border: 2px solid var(--pp-accent-20); border-radius: var(--pp-r-l); padding: 38px 34px; transition: transform .3s, box-shadow .3s, border-color .3s; }
.deploy-card:hover { transform: translateY(-6px); border-color: var(--pp-accent); box-shadow: var(--pp-shadow-lift); }
.deploy-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 5px; background: linear-gradient(90deg, var(--pp-accent), var(--pp-cube-strong)); }
.deploy-card h3 { font-size: 23px; margin-bottom: 6px; }
.deploy-card .sub { color: var(--pp-accent-dark); font-size: 14px; font-weight: 700; margin-bottom: 18px; }
.deploy-card ul { display: grid; gap: 10px; }
.deploy-card li { padding-left: 24px; position: relative; font-size: 15px; color: var(--pp-ink-soft); }
.deploy-card li::before { content: '✓'; position: absolute; left: 0; color: var(--pp-accent-dark); font-weight: 700; }
.steps { position: relative; display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; counter-reset: step; }
.steps.s3 { grid-template-columns: repeat(3, 1fr); } .steps.s5 { grid-template-columns: repeat(5, 1fr); } .steps.s6 { grid-template-columns: repeat(6, 1fr); }
.steps::before { content: ''; position: absolute; top: 25px; left: 6%; right: 6%; height: 2px; background: var(--pp-accent-20); }
.steps::after { content: ''; position: absolute; top: 25px; left: 6%; height: 2px; width: calc(88% * var(--prog, 0)); background: var(--pp-accent); transition: width 1.6s cubic-bezier(.4, 0, .2, 1); }
.theme-ya .steps::after { background: var(--ya-green); }
.theme-ya .steps::before { background: var(--ya-green-24); }
.step { position: relative; z-index: 1; text-align: center; padding: 0 4px; }
.step i { counter-increment: step; display: flex; align-items: center; justify-content: center; width: 50px; height: 50px; margin: 0 auto 12px; border-radius: 50%; background: #fff; border: 2px solid var(--pp-accent-20); font-style: normal; font-weight: 700; color: var(--pp-accent-dark); font-size: 17px; transition: background .5s, color .5s, border-color .5s, transform .5s; }
.step i::before { content: counter(step); }
.steps.lit .step i { background: var(--pp-accent); border-color: var(--pp-accent); color: #fff; transition-delay: calc(var(--i) * .18s); }
.theme-ya .steps.lit .step i { background: var(--ya-green); border-color: var(--ya-green); }
.theme-ya .step i { color: var(--ya-green-dark); border-color: var(--ya-green-24); }
.step b { display: block; font-size: 14.5px; line-height: 1.45; }
.step small { display: block; font-size: 12.5px; color: var(--pp-muted); margin-top: 3px; line-height: 1.5; }
.pipeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; align-items: stretch; }
.pipe-node { position: relative; background: #fff; border: 2px solid var(--pp-accent-20); border-radius: var(--pp-r-s); padding: 22px 20px; margin-right: 34px; transition: border-color .3s, transform .3s; }
.pipe-node:last-child { margin-right: 0; }
.pipe-node:hover { border-color: var(--pp-accent); transform: translateY(-4px); }
.pipe-node::after { content: '→'; position: absolute; right: -28px; top: 50%; transform: translateY(-50%); color: var(--pp-accent); font-size: 20px; font-weight: 700; }
.pipe-node:last-child::after { content: none; }
.pipe-node b { display: block; font-size: 15.5px; margin-bottom: 6px; }
.pipe-node small { font-size: 13px; color: var(--pp-muted); line-height: 1.55; display: block; }
.accordion { display: grid; gap: 12px; max-width: 820px; margin: 0 auto; }
.acc-item { background: #fff; border: 2px solid var(--pp-accent-20); border-radius: var(--pp-r-s); overflow: hidden; transition: border-color .3s; }
.acc-item.open { border-color: var(--pp-accent); }
.theme-ya .acc-item.open { border-color: var(--ya-green); }
.acc-head { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 18px 24px; background: none; border: none; cursor: pointer; font-family: var(--pp-font); font-size: 16.5px; font-weight: 700; color: var(--pp-ink); text-align: left; }
.acc-head::after { content: '+'; font-size: 22px; color: var(--pp-accent-dark); transition: transform .3s; }
.acc-item.open .acc-head::after { transform: rotate(45deg); }
.acc-body { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.acc-body p { padding: 0 24px 20px; font-size: 16px; color: var(--pp-ink-soft); }
.notice { border: 2px dashed var(--pp-accent-50); border-radius: var(--pp-r-s); background: rgba(255, 255, 255, .6); padding: 20px 26px; font-size: 14.5px; color: var(--pp-ink-soft); }
.notice b { color: var(--pp-accent-dark); }
.theme-ya .notice { border-color: var(--ya-green); }
.theme-ya .notice b { color: var(--ya-green-dark); }
.section-dark .notice { background: rgba(255, 255, 255, .04); border-color: var(--pp-dark-line); color: var(--pp-on-dark-soft); }
.section-dark .notice b { color: var(--pp-neon); }
.safe-band { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.safe-band .card { padding: 22px 18px; text-align: center; border-radius: var(--pp-r-s); }
.safe-band .card .ico { margin: 0 auto 12px; }
.safe-band .card h4 { font-size: 15px; }
.safe-band .card p { font-size: 12.5px; }

/* ---------- 页内锚点栏 ---------- */
.anchor-bar { position: sticky; top: var(--pp-nav-h); z-index: 90; background: rgba(236, 247, 249, 0.97); border-bottom: 1px solid var(--pp-accent-20); }
.anchor-bar.on-dark { background: rgba(11, 21, 24, .88); border-color: var(--pp-dark-line); }
.anchor-bar-inner { max-width: 1180px; margin: 0 auto; padding: 0 24px; display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.anchor-bar-inner::-webkit-scrollbar { display: none; }
.anchor-bar a { flex: 0 0 auto; padding: 13px 15px; font-size: 14px; color: var(--pp-muted); border-bottom: 2.5px solid transparent; transition: color .25s, border-color .25s; }
.anchor-bar a:hover { color: var(--pp-ink); }
.anchor-bar a.active { color: var(--pp-accent-dark); border-bottom-color: var(--pp-accent); font-weight: 700; }
.anchor-bar.on-dark a { color: var(--pp-on-dark-soft); }
.anchor-bar.on-dark a:hover { color: #fff; }
.anchor-bar.on-dark a.active { color: var(--pp-neon); border-bottom-color: var(--pp-neon); }

/* ---------- 前后对比滑块 ---------- */
.ba-slider { position: relative; overflow: hidden; user-select: none; border-radius: var(--pp-r-s); border: 2px solid var(--pp-cube-strong); box-shadow: var(--pp-shadow); cursor: ew-resize; touch-action: pan-y; max-width: 520px; margin-left: auto; margin-right: auto; }
.ba-slider img { width: 100%; pointer-events: none; }
.ba-after { position: absolute; inset: 0; overflow: hidden; clip-path: inset(0 calc(100% - var(--ba, 50%)) 0 0); }
.ba-after img { position: absolute; inset: 0; height: 100%; width: 100%; object-fit: cover; }
.ba-handle { position: absolute; top: 0; bottom: 0; left: var(--ba, 50%); width: 3px; background: #fff; box-shadow: 0 0 12px rgba(16, 20, 22, .4); pointer-events: none; }
.ba-handle::after { content: '⇔'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 40px; height: 40px; border-radius: 50%; background: #fff; color: var(--pp-accent-dark); display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 700; box-shadow: var(--pp-shadow-lift); }
.ba-tag { position: absolute; bottom: 12px; padding: 3px 12px; border-radius: 999px; font-size: 12.5px; font-weight: 700; background: rgba(16, 20, 22, .55); color: #fff; pointer-events: none; }
.ba-tag.l { left: 12px; } .ba-tag.r { right: 12px; }

/* ---------- 渡芽：滚动叙事手机 ---------- */
.phone-flow { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 64px; align-items: start; }
.flow-sticky { position: sticky; top: calc(var(--pp-nav-h) + 24px); display: grid; justify-items: center; }
.flow-steps { display: grid; gap: 22px; padding: 12px 0; }
.flow-step { padding: 26px 28px; border-radius: var(--pp-r-l); border: 2px solid transparent; transition: background .35s, border-color .35s, box-shadow .35s; }
.flow-step.is-active { background: #fff; border-color: var(--ya-green-24); box-shadow: 0 14px 40px rgba(16, 20, 22, .08); }
.flow-step .no { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 50%; background: var(--ya-green-16); color: var(--ya-green-dark); font-weight: 700; font-size: 14px; margin-bottom: 12px; transition: background .3s, color .3s; }
.flow-step.is-active .no { background: var(--ya-green); color: #fff; }
.flow-step h3 { font-size: 22px; margin-bottom: 8px; }
.flow-step p { font-size: 15.5px; color: var(--pp-ink-soft); }
.flow-step .evidence { margin-top: 12px; gap: 6px; }
.flow-step .evidence li { font-size: 13.5px; }
.flow-caption { margin-top: 14px; font-size: 13px; color: var(--pp-muted); text-align: center; min-height: 20px; }
.flow-phone-wrap { position: relative; }
.flow-phone-wrap .float-chip { animation-duration: 6s; }

/* ---------- 渡芽：报告展示 / 后台标签 ---------- */
.report-showcase { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 48px; align-items: center; }
.report-phones { position: relative; display: flex; justify-content: center; align-items: flex-start; gap: 20px; }
.report-phones .phone { --phone-scale: .77; }
.report-phones .phone.back { position: absolute; left: 0; top: 60px; transform: rotate(-6deg) scale(.86); opacity: .95; }
.report-phones .phone.front { position: relative; z-index: 2; }
.tab-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; }
.tab-btn { padding: 10px 18px; border-radius: 999px; font-family: var(--pp-font); font-size: 14.5px; font-weight: 700; background: #fff; border: 2px solid var(--pp-accent-20); color: var(--pp-ink-soft); cursor: pointer; transition: all .25s; }
.tab-btn:hover { border-color: var(--pp-accent); color: var(--pp-ink); }
.tab-btn.is-active { background: var(--pp-ink); color: #fff; border-color: var(--pp-ink); }
main.pp2026.theme-ya .tab-btn.is-active { background: var(--ya-green-dark); color: #fff; border-color: var(--ya-green-dark); }
.theme-ya .tab-btn { border-color: var(--ya-green-24); }
.theme-ya .tab-btn:hover { border-color: var(--ya-green); }
.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: fade-up .45s ease; }
.backend-panel { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr); gap: 32px; align-items: center; }
.backend-panel.mobile { grid-template-columns: 320px minmax(0, 1fr); }
.backend-panel .app-frame { box-shadow: 0 24px 60px rgba(16, 20, 22, .16); }
.backend-facts h3 { font-size: 24px; margin-bottom: 10px; }
.backend-facts > p { font-size: 15px; color: var(--pp-ink-soft); }

/* ---------- 漏斗 / 二维码 / CTA ---------- */
.funnel { display: grid; gap: 10px; }
.funnel-row { display: grid; grid-template-columns: 130px 1fr; align-items: center; gap: 14px; }
.funnel-row span { font-size: 14px; color: var(--pp-ink-soft); text-align: right; }
.funnel-bar { height: 34px; border-radius: 8px; background: linear-gradient(90deg, var(--pp-accent), var(--pp-accent-dark)); width: 0; min-width: 46px; transition: width 1.1s cubic-bezier(.4, 0, .2, 1); display: flex; align-items: center; padding: 0 8px; color: #fff; font-size: 13px; font-weight: 700; white-space: nowrap; overflow: hidden; }
.theme-ya .funnel-bar { background: linear-gradient(90deg, var(--ya-green), var(--ya-green-dark)); }
.in-view .funnel-bar { width: calc(var(--w) * 1%); }
.funnel-row:nth-child(2) .funnel-bar { transition-delay: .12s; } .funnel-row:nth-child(3) .funnel-bar { transition-delay: .24s; } .funnel-row:nth-child(4) .funnel-bar { transition-delay: .36s; } .funnel-row:nth-child(5) .funnel-bar { transition-delay: .48s; } .funnel-row:nth-child(6) .funnel-bar { transition-delay: .6s; }
.qr-ph { width: 168px; height: 168px; margin: 0 auto; border: 2px dashed var(--pp-accent-50); border-radius: var(--pp-r-s); background: repeating-linear-gradient(0deg, var(--pp-accent-10) 0 8px, transparent 8px 16px), repeating-linear-gradient(90deg, var(--pp-accent-10) 0 8px, transparent 8px 16px); display: flex; align-items: center; justify-content: center; font-size: 13px; color: var(--pp-muted); text-align: center; line-height: 1.5; }
.cta-panel { background: var(--pp-ink); color: #fff; border-radius: var(--pp-r-l); padding: 64px 56px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; position: relative; overflow: hidden; }
.cta-panel::before { content: ''; position: absolute; right: -80px; top: -80px; width: 320px; height: 320px; border-radius: 50%; background: var(--pp-accent-20); filter: blur(60px); }
.theme-ya .cta-panel::before { background: var(--ya-green-24); }
.cta-panel h2 { font-size: clamp(26px, 3vw, 36px); line-height: 1.35; }
.cta-panel p { margin-top: 12px; color: rgba(255, 255, 255, .72); font-size: 15.5px; }
.cta-panel .side { position: relative; text-align: center; display: grid; gap: 16px; justify-items: center; }
.qr-code { width: 168px; height: 168px; margin: 0 auto; display: block; border-radius: var(--pp-r-s); background: #fff; padding: 8px; box-shadow: 0 6px 20px rgba(0, 0, 0, .18); }
.cta-panel .qr-ph { border-color: rgba(255, 255, 255, .35); color: rgba(255, 255, 255, .6); background: repeating-linear-gradient(0deg, rgba(255, 255, 255, .06) 0 8px, transparent 8px 16px), repeating-linear-gradient(90deg, rgba(255, 255, 255, .06) 0 8px, transparent 8px 16px); }
.cta-panel .side small { font-size: 13px; color: rgba(255, 255, 255, .6); }

/* ---------- 图片墙 / 横滑画廊 ---------- */
.gallery { display: flex; gap: 18px; overflow-x: auto; padding: 6px 6px 18px; scroll-snap-type: x mandatory; cursor: grab; -webkit-overflow-scrolling: touch; }
.gallery.dragging { cursor: grabbing; scroll-snap-type: none; }
.gallery::-webkit-scrollbar { height: 8px; }
.gallery::-webkit-scrollbar-thumb { background: var(--pp-accent-20); border-radius: 999px; }
.gallery figure { flex: 0 0 min(560px, 82vw); scroll-snap-align: start; margin: 0; }
.gallery img { border-radius: var(--pp-r-s); border: 2px solid var(--pp-cube-strong); box-shadow: var(--pp-shadow); width: 100%; height: auto; pointer-events: none; }
.gallery figcaption { margin-top: 10px; font-size: 13.5px; color: var(--pp-muted); text-align: center; }

/* ---------- 滚动显现 ---------- */
[data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
[data-reveal].shown { opacity: 1; transform: none; }
[data-reveal="left"] { transform: translateX(-36px); }
[data-reveal="right"] { transform: translateX(36px); }
[data-reveal="scale"] { transform: scale(.94); }
[data-reveal="left"].shown, [data-reveal="right"].shown, [data-reveal="scale"].shown { transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .net-tiles { grid-template-columns: repeat(2, 1fr); }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .tour { grid-template-columns: minmax(0, 360px) minmax(0, 1fr); gap: 32px; }
}
@media (max-width: 960px) {
  .hero-inner, .feature-module, .deploy-grid, .cta-panel, .download-card, .price-hero, .net-demo, .tour, .phone-flow, .report-showcase, .ms-panel.is-active, .ortho-layout, .perio-layout, .backend-panel, .backend-panel.mobile, .analyzer { grid-template-columns: 1fr; }
  .feature-module.reverse .fm-copy { order: 1; }
  .feature-module.reverse .fm-visual { order: 2; }
  .cards.c3, .cards.c4 { grid-template-columns: repeat(2, 1fr); }
  .stat-row { grid-template-columns: repeat(2, 1fr); row-gap: 26px; }
  .steps, .steps.s5, .steps.s6 { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  .steps.s3 { grid-template-columns: repeat(3, 1fr); }
  .steps::before, .steps::after { display: none; }
  .pipeline { grid-template-columns: 1fr; }
  .pipe-node { margin-right: 0; margin-bottom: 30px; }
  .pipe-node::after { content: '↓'; right: 50%; top: auto; bottom: -26px; transform: translateX(50%); }
  .pipe-node:last-child { margin-bottom: 0; }
  .safe-band { grid-template-columns: repeat(2, 1fr); }
  .float-chip { display: none; }
  .pp-3d { min-height: 0; aspect-ratio: 4 / 3; }
  .stat:nth-child(2n+1)::before { content: none; }
  .net-panel { position: static; }
  .tour-stage { position: relative; top: auto; order: -1; }
  .tour-step .evidence { max-height: none; opacity: 1; margin-top: 12px; }
  .flow-sticky { position: relative; top: auto; order: -1; }
  .analyzer-panel { border-left: 0; border-top: 1px solid var(--pp-dark-line); }
  .an-log { min-height: 120px; }
  .perio-row { gap: 4px; }
  .perio-tooth { font-size: 11px; border-radius: 6px; }
  .perio-tooth small { display: none; }
  .report-phones .phone.back { display: none; }
  .hero-visual { margin-top: 12px; }
  .hero-inner.cols-ai { grid-template-columns: 1fr; }
  .hero-ya .phone-sm, .hero-ya .float-chip { display: none; }
  .hero-ya .hero-phones { justify-content: center; }
  .hero-ya .hero-phones .phone { margin: 0; }
}
@media (max-width: 600px) {
  .pp-container, .pp-wide { padding: 0 20px; }
  .cards.c2, .cards.c3, .cards.c4, .cap-grid, .net-tiles, .steps, .steps.s3, .steps.s5, .steps.s6, .safe-band, .ms-kv, .perio-sites { grid-template-columns: 1fr 1fr; }
  .cards.c2, .cards.c3, .cards.c4, .cap-grid { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .cta-panel, .download-card { padding: 40px 28px; }
  .stat-row { padding: 22px 16px; }
  .stat b { font-size: 38px; }
  .phone { width: 260px; }
  .price-vs { padding: 20px 18px; }
  .price-vs th, .price-vs td { padding: 10px 6px; font-size: 13.5px; }
  .perio-row { grid-template-columns: repeat(7, 1fr); }
  .perio-arch { grid-template-columns: 1fr; }
  .hero-promises { gap: 8px; }
  .promise { padding: 10px 12px; }
  .promise b { font-size: 18px; }
  .pp-hero h1 { font-size: 34px; }
  .section-head h2 { font-size: 28px; }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  main.pp2026 *, main.pp2026 *::before, main.pp2026 *::after { animation: none !important; transition: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
  .funnel-bar { width: calc(var(--w) * 1%); }
  .an-tooth { stroke-dashoffset: 0; opacity: 1; }
}

/* ---------- 按下态（2026-09-05 交互优化） ---------- */
.pp-btn:active { transform: translateY(0) scale(0.98); transition-duration: .08s; }
.tab-btn:active, .acc-head:active, .anchor-bar a:active, .ms-tab:active { transform: scale(0.97); }