/* ============================================================
   涅槃 AI 系列 — 产品介绍站
   双主题：亮色（默认）/ 深色 · 玻璃拟态 · 三产品配色系统
   ============================================================ */

/* ---------- 亮色（默认） ---------- */
:root {
  color-scheme: light;

  --bg: #f4f5fa;
  --panel: rgba(255, 255, 255, 0.74);
  --panel-strong: #ffffff;
  --line: rgba(23, 27, 60, 0.11);
  --line-soft: rgba(23, 27, 60, 0.07);
  --text: #171a2e;
  --text-2: #4b4e66;
  --text-3: #85899f;

  --nav-bg: rgba(255, 255, 255, 0.84);
  --card-shadow: 0 16px 40px rgba(30, 40, 90, 0.08);
  --card-shadow-hover: 0 26px 58px rgba(30, 40, 90, 0.15);
  --aurora-1: rgba(111, 124, 247, 0.13);
  --aurora-2: rgba(176, 124, 247, 0.09);
  --aurora-3: rgba(47, 212, 184, 0.06);
  --hero-glow: rgba(111, 124, 247, 0.15);
  --orbit: rgba(23, 27, 60, 0.11);
  --ghost-bg: rgba(23, 27, 60, 0.045);
  --ghost-hover: rgba(23, 27, 60, 0.085);
  --ghost-border-hover: rgba(23, 27, 60, 0.2);
  --mock-shadow: 0 24px 60px rgba(30, 40, 90, 0.16);
  --footer-bg: rgba(255, 255, 255, 0.72);
  --cta-grad-1: rgba(111, 124, 247, 0.1);
  --cta-grad-2: rgba(176, 124, 247, 0.05);
  --cta-glow: rgba(111, 124, 247, 0.2);

  --canvas: #5b68f0;
  --canvas-soft: rgba(91, 104, 240, 0.1);
  --manager: #0da98f;
  --manager-soft: rgba(13, 169, 143, 0.1);
  --director: #9a55ee;
  --director-soft: rgba(154, 85, 238, 0.1);
  --redraw: #e8447f;
  --redraw-soft: rgba(232, 68, 127, 0.1);

  --grad-1: #4f5bd6;
  --grad-2: #8b46d6;
  --grad-3: #0da98f;

  --radius: 18px;
  --nav-h: 68px;
  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ---------- 深色 ---------- */
[data-theme="dark"] {
  color-scheme: dark;

  --bg: #07070f;
  --panel: rgba(255, 255, 255, 0.032);
  --panel-strong: rgba(255, 255, 255, 0.055);
  --line: rgba(255, 255, 255, 0.09);
  --line-soft: rgba(255, 255, 255, 0.055);
  --text: #f2f2f8;
  --text-2: #b6b6c8;
  --text-3: #7f7f93;

  --nav-bg: rgba(7, 7, 15, 0.72);
  --card-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --card-shadow-hover: 0 28px 70px rgba(0, 0, 0, 0.55);
  --aurora-1: rgba(111, 124, 247, 0.16);
  --aurora-2: rgba(176, 124, 247, 0.12);
  --aurora-3: rgba(47, 212, 184, 0.08);
  --hero-glow: rgba(111, 124, 247, 0.13);
  --orbit: rgba(255, 255, 255, 0.07);
  --ghost-bg: rgba(255, 255, 255, 0.045);
  --ghost-hover: rgba(255, 255, 255, 0.09);
  --ghost-border-hover: rgba(255, 255, 255, 0.2);
  --mock-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  --footer-bg: rgba(4, 4, 10, 0.6);
  --cta-grad-1: rgba(111, 124, 247, 0.1);
  --cta-grad-2: rgba(176, 124, 247, 0.05);
  --cta-glow: rgba(111, 124, 247, 0.25);

  --canvas: #6f7cf7;
  --canvas-soft: rgba(111, 124, 247, 0.14);
  --manager: #2fd4b8;
  --manager-soft: rgba(47, 212, 184, 0.13);
  --director: #b07cf7;
  --director-soft: rgba(176, 124, 247, 0.14);
  --redraw: #ff6ea3;
  --redraw-soft: rgba(255, 110, 163, 0.14);

  --grad-1: #8b9bff;
  --grad-2: #b07cf7;
  --grad-3: #6ee7d8;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background 0.4s, color 0.4s;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { display: block; max-width: 100%; }

.wrap { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }

/* ---------- 背景：星空 + 极光 ---------- */
#stars {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(900px 520px at 12% -6%, var(--aurora-1), transparent 62%),
    radial-gradient(860px 520px at 88% 4%, var(--aurora-2), transparent 62%),
    radial-gradient(1000px 640px at 50% 108%, var(--aurora-3), transparent 60%);
}

main, .nav, .footer { position: relative; z-index: 1; }

/* ===================== 导航 ===================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 0 32px;
  /* 刘海屏 / 圆角屏安全区：横屏时左右会被系统裁切，用 env() 让开 */
  padding-left: max(32px, env(safe-area-inset-left));
  padding-right: max(32px, env(safe-area-inset-right));
  z-index: 50;
  background: var(--nav-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.4s;
}
.nav.is-scrolled { border-bottom-color: var(--line-soft); }

.nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; letter-spacing: 0.5px; }
.nav-logo { border-radius: 8px; }
.nav-brand-text em { font-style: normal; background: linear-gradient(100deg, var(--canvas), var(--director)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.nav-links { display: flex; gap: 6px; margin-left: auto; }
/* 导航链接：统一用「下载中心」同款渐变胶囊背景 + 白色字体 */
.nav-links a {
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(100deg, var(--canvas), var(--director));
  box-shadow: 0 2px 10px rgba(111, 124, 247, 0.22);
  white-space: nowrap;
  transition: transform 0.25s, box-shadow 0.25s, filter 0.25s;
}
.nav-links a:hover {
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(111, 124, 247, 0.42);
  filter: brightness(1.06);
}
/* 当前页高亮：渐变反向加深 + 白色内描边，与其它项区分 */
.nav-links a[aria-current="page"] {
  color: #fff;
  background: linear-gradient(100deg, var(--director), var(--canvas));
  box-shadow: 0 4px 18px rgba(111, 124, 247, 0.5), inset 0 0 0 2px rgba(255, 255, 255, 0.28);
}
.foot-links a[aria-current="page"] { color: var(--text); font-weight: 600; }

/* 主题切换按钮 */
.theme-toggle {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-2);
  cursor: pointer;
  flex: none;
  transition: color 0.25s, background 0.25s, border-color 0.25s, transform 0.25s;
}
.theme-toggle:hover { color: var(--text); background: var(--ghost-hover); border-color: var(--ghost-border-hover); transform: rotate(15deg); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.nav-cta {
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(100deg, var(--canvas), var(--director));
  box-shadow: 0 4px 22px rgba(111, 124, 247, 0.35);
  transition: transform 0.25s, box-shadow 0.25s;
  white-space: nowrap;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 8px 28px rgba(111, 124, 247, 0.5); }

/* ===================== HERO ===================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 56px) 0 80px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  left: 50%;
  top: 42%;
  transform: translate(-50%, -50%);
  width: 900px;
  height: 900px;
  max-width: 92vw;
  max-height: 92vw;
  border-radius: 50%;
  background: radial-gradient(circle, var(--hero-glow) 0%, transparent 68%);
  pointer-events: none;
}

.hero-inner { position: relative; z-index: 2; max-width: 760px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-size: 13.5px;
  letter-spacing: 2px;
  color: var(--text-2);
}
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--manager); box-shadow: 0 0 12px var(--manager); }

.hero-title {
  margin-top: 26px;
  font-size: clamp(44px, 7.2vw, 76px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: 1px;
}
.grad-text {
  background: linear-gradient(100deg, var(--grad-1) 0%, var(--grad-2) 52%, var(--grad-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  margin-top: 24px;
  max-width: 620px;
  font-size: clamp(15px, 1.8vw, 17.5px);
  color: var(--text-2);
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.25s, box-shadow 0.25s, background 0.25s, border-color 0.25s;
}
.btn-primary {
  color: #fff;
  background: linear-gradient(100deg, var(--canvas), var(--director));
  box-shadow: 0 8px 30px rgba(111, 124, 247, 0.38);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 38px rgba(111, 124, 247, 0.52); }
.btn-ghost { color: var(--text); background: var(--ghost-bg); border-color: var(--line); }
.btn-ghost:hover { background: var(--ghost-hover); border-color: var(--ghost-border-hover); }
.btn-outline { color: var(--text); border-color: var(--line); background: transparent; }
.btn-outline:hover { border-color: var(--ghost-border-hover); background: var(--ghost-bg); }

.hero-chips { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 44px; }
.chip {
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  border: 1px solid var(--line);
  background: var(--panel);
}
.chip-canvas { color: var(--canvas); border-color: color-mix(in srgb, var(--canvas) 35%, transparent); background: var(--canvas-soft); }
.chip-manager { color: var(--manager); border-color: color-mix(in srgb, var(--manager) 32%, transparent); background: var(--manager-soft); }
.chip-director { color: var(--director); border-color: color-mix(in srgb, var(--director) 35%, transparent); background: var(--director-soft); }
.chip-redraw { color: var(--redraw); border-color: color-mix(in srgb, var(--redraw) 35%, transparent); background: var(--redraw-soft); }

/* hero 轨道装饰 */
.hero-orbit {
  position: absolute;
  right: -180px;
  top: 50%;
  transform: translateY(-50%);
  width: 640px;
  height: 640px;
  pointer-events: none;
}
.orbit-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--orbit);
}
.orbit-ring.r2 { inset: 90px; }
.orbit-logo {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 150px;
  height: 150px;
  filter: drop-shadow(0 0 46px rgba(111, 124, 247, 0.45));
  animation: floaty 7s ease-in-out infinite;
}
@keyframes floaty { 0%, 100% { transform: translate(-50%, -50%); } 50% { transform: translate(-50%, calc(-50% - 14px)); } }

/* ===================== 通用 section ===================== */
.section { padding: 108px 0; position: relative; }

.sec-head { max-width: 680px; margin-bottom: 56px; }
.sec-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--text-3);
  text-transform: uppercase;
}
.sec-title { margin-top: 14px; font-size: clamp(28px, 4vw, 40px); line-height: 1.28; font-weight: 800; letter-spacing: 0.5px; }
.sec-desc { margin-top: 16px; color: var(--text-2); font-size: 16px; }

/* ===================== 产品矩阵卡片 ===================== */
/* 四列布局：宽屏一行放下四款产品，窄屏降为两列 / 单列 */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.p-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 30px 28px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel-strong);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: transform 0.35s, border-color 0.35s, box-shadow 0.35s;
}
/* 四列布局下收紧内边距与字号，保证四张卡片视觉重量一致 */
.grid-4 .p-card { padding: 26px 22px 22px; }
.grid-4 .p-name { margin-top: 16px; font-size: 20px; }
.grid-4 .p-desc { margin-top: 10px; font-size: 13.5px; }
.grid-4 .p-points { margin-top: 14px; gap: 6px; }
.grid-4 .p-points li { font-size: 12.5px; padding-left: 17px; }
.grid-4 .p-points li::before { width: 5px; height: 5px; }
.grid-4 .p-foot { margin-top: 18px; padding-top: 14px; }
.grid-4 .p-icon { width: 42px; height: 42px; border-radius: 12px; }
.grid-4 .p-icon svg { width: 21px; height: 21px; }
.grid-4 .p-tag { font-size: 11.5px; }
.p-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ac, var(--canvas)), transparent);
  opacity: 0.7;
}
.p-card:hover { transform: translateY(-6px); border-color: color-mix(in srgb, var(--ac) 40%, transparent); box-shadow: var(--card-shadow-hover); }

.p-card[data-accent="canvas"] { --ac: var(--canvas); --ac-soft: var(--canvas-soft); }
.p-card[data-accent="manager"] { --ac: var(--manager); --ac-soft: var(--manager-soft); }
.p-card[data-accent="director"] { --ac: var(--director); --ac-soft: var(--director-soft); }
.p-card[data-accent="redraw"] { --ac: var(--redraw); --ac-soft: var(--redraw-soft); }

.p-card-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.p-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  color: var(--ac);
  background: var(--ac-soft);
  border: 1px solid color-mix(in srgb, var(--ac) 30%, transparent);
}
.p-icon svg { width: 23px; height: 23px; }
.p-tag { font-size: 12.5px; color: var(--text-3); letter-spacing: 1px; }

.p-name { margin-top: 20px; font-size: 23px; font-weight: 800; letter-spacing: 0.3px; }
.p-desc { margin-top: 12px; font-size: 14.5px; color: var(--text-2); flex: 1; }

.p-points { margin-top: 18px; display: grid; gap: 8px; }
.p-points li { position: relative; padding-left: 20px; font-size: 13.5px; color: var(--text-2); }
.p-points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ac);
  box-shadow: 0 0 8px var(--ac);
}

.p-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}
.p-platform { font-size: 12.5px; color: var(--text-3); }
.p-link { font-size: 14px; font-weight: 700; color: var(--ac); transition: opacity 0.25s; }
.p-link:hover { opacity: 0.78; }

/* ===================== 产品详情 ===================== */
.detail { padding-top: 96px; padding-bottom: 96px; }
.detail + .detail { border-top: 1px solid var(--line-soft); }

.detail[data-accent="canvas"] { --ac: var(--canvas); --ac-soft: var(--canvas-soft); }
.detail[data-accent="manager"] { --ac: var(--manager); --ac-soft: var(--manager-soft); }
.detail[data-accent="director"] { --ac: var(--director); --ac-soft: var(--director-soft); }
.detail[data-accent="redraw"] { --ac: var(--redraw); --ac-soft: var(--redraw-soft); }

.detail-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}
.detail-grid.reverse .detail-copy { order: 2; }
.detail-grid.reverse .detail-visual { order: 1; }

.detail-title { font-size: clamp(30px, 3.6vw, 42px); line-height: 1.22; font-weight: 800; letter-spacing: 0.5px; }
.detail-title small { display: block; margin-top: 10px; font-size: clamp(15px, 1.7vw, 18px); font-weight: 500; color: var(--text-2); letter-spacing: 0.3px; }
.detail-lead { margin-top: 20px; color: var(--text-2); font-size: 15.5px; }

.feat-grid { margin-top: 34px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.feat {
  padding: 18px 18px 16px;
  border-radius: 14px;
  border: 1px solid var(--line-soft);
  background: var(--panel);
  transition: border-color 0.3s, background 0.3s, transform 0.3s;
}
.feat:hover { border-color: color-mix(in srgb, var(--ac) 38%, transparent); background: var(--ac-soft); transform: translateY(-3px); }
.feat h4 { font-size: 15px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.feat h4::before { content: ""; width: 7px; height: 7px; border-radius: 2px; background: var(--ac); box-shadow: 0 0 8px var(--ac); }
.feat p { margin-top: 8px; font-size: 13px; line-height: 1.65; color: var(--text-2); }

.flow-strip {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.flow-strip li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px dashed color-mix(in srgb, var(--ac) 42%, transparent);
  background: var(--ac-soft);
  font-size: 13px;
  color: var(--text);
}
.flow-strip span { font-size: 10.5px; font-weight: 800; letter-spacing: 1px; color: var(--ac); }

.detail-extra {
  margin-top: 26px;
  padding: 14px 18px;
  border-radius: 12px;
  border-left: 3px solid var(--ac);
  background: var(--panel);
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-2);
}

.detail .btn { margin-top: 32px; }

/* ---------- 产品视觉 mock（模拟软件界面，保持深色） ---------- */
.detail-visual { position: relative; }

.mock {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, #101020, #0b0b16);
  box-shadow: var(--mock-shadow);
  overflow: hidden;
  transform: perspective(1400px) rotateY(-4deg);
  transition: transform 0.5s;
}
.mock:hover { transform: perspective(1400px) rotateY(0deg); }

.mock-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.025);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.45);
}
.mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, 0.14); }
.mock-bar i:first-child { background: rgba(255, 107, 107, 0.55); }
.mock-bar i:nth-child(2) { background: rgba(255, 190, 90, 0.55); }
.mock-bar i:nth-child(3) { background: rgba(90, 220, 140, 0.55); }
.mock-bar span { margin-left: 10px; letter-spacing: 0.5px; }

/* 画布 mock */
.mock-canvas .mock-body { position: relative; height: 340px; background: radial-gradient(420px 260px at 30% 20%, rgba(111, 124, 247, 0.09), transparent 70%); }
.mock-lines { position: absolute; inset: 0; width: 100%; height: 100%; }
.mock-lines path { fill: none; stroke: rgba(255, 255, 255, 0.22); stroke-width: 1.4; stroke-dasharray: 5 6; }

.node {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 13px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(20, 20, 38, 0.92);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  font-size: 12.5px;
  color: #f2f2f8;
  animation: nodeFloat 6s ease-in-out infinite;
}
.node strong { display: block; font-size: 13px; }
.node small { display: block; color: rgba(255, 255, 255, 0.45); font-size: 11px; }
.node-ico {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 9px;
  background: var(--canvas-soft);
  color: #aab4ff;
  font-size: 14px;
  flex: none;
}
.node-story { left: 6%; top: 8%; animation-delay: 0s; }
.node-director { left: 47%; top: 42%; animation-delay: 1.2s; }
.node-director .node-ico { background: var(--director-soft); color: #cfaaff; }
.node-video { left: 6%; top: 66%; animation-delay: 2.1s; }
.node-video .node-ico { background: var(--manager-soft); color: #7fe8d2; }
.node-agent { right: 5%; top: 66%; border-color: rgba(47, 212, 184, 0.3); animation-delay: 3s; }
.node-agent .node-ico { background: var(--manager-soft); color: #7fe8d2; }
@keyframes nodeFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }

/* 管理器 mock */
.mock-manager .mock-body { display: grid; grid-template-columns: 168px 1fr; min-height: 340px; }
.mgr-side { padding: 16px 12px; border-right: 1px solid rgba(255, 255, 255, 0.06); display: grid; gap: 6px; align-content: start; }
.mgr-side-title { font-size: 12px; color: rgba(255, 255, 255, 0.45); letter-spacing: 1px; padding: 0 6px 8px; }
.mgr-side-title em { font-style: normal; color: var(--manager); font-weight: 700; }
.mgr-acc {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.028);
  font-size: 12.5px;
  color: #e8e8f2;
}
.mgr-acc small { margin-left: auto; font-size: 10.5px; color: rgba(255, 255, 255, 0.45); }
.mgr-acc .dot { width: 7px; height: 7px; border-radius: 50%; flex: none; }
.mgr-acc.is-online .dot { background: #4ade80; box-shadow: 0 0 8px #4ade80; }
.mgr-acc.is-busy .dot { background: #fbbf24; box-shadow: 0 0 8px #fbbf24; }
.mgr-acc.is-cool .dot { background: #60a5fa; box-shadow: 0 0 8px #60a5fa; }
.mgr-acc.is-off .dot { background: #6b7280; }

.mgr-main { padding: 18px 20px; display: grid; gap: 12px; align-content: center; }
.mgr-row { display: grid; grid-template-columns: 62px 1fr 44px; align-items: center; gap: 12px; font-size: 12px; color: #d5d5e4; }
.tag { padding: 3px 9px; border-radius: 6px; font-size: 10.5px; font-weight: 700; text-align: center; }
.tag-run { color: #ffd98a; background: rgba(251, 191, 36, 0.14); }
.tag-queue { color: #9aa6ff; background: rgba(111, 124, 247, 0.16); }
.tag-dl { color: #7dd3fc; background: rgba(125, 211, 252, 0.13); }
.tag-done { color: #6fe3cc; background: rgba(47, 212, 184, 0.13); }
.bar { height: 7px; border-radius: 99px; background: rgba(255, 255, 255, 0.07); overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--canvas), var(--manager)); }
.mgr-row em { font-style: normal; text-align: right; color: rgba(255, 255, 255, 0.45); font-size: 11px; }

/* 导演台截图 */
.shot { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--mock-shadow); background: #101020; }
.shot img { width: 100%; height: auto; }

/* ---------- 导演台模块组 ---------- */
.mod-groups { margin-top: 32px; display: grid; gap: 12px; }
.mod-group {
  display: grid;
  grid-template-columns: 74px 1fr;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  border-radius: 13px;
  border: 1px solid var(--line-soft);
  background: var(--panel);
}
.mod-group h4 { font-size: 14px; font-weight: 800; color: var(--director); letter-spacing: 2px; }
.mod-group p { font-size: 13.5px; color: var(--text-2); }

.director-3d {
  margin-top: 16px;
  padding: 20px 22px;
  border-radius: 14px;
  border: 1px solid color-mix(in srgb, var(--director) 32%, transparent);
  background: linear-gradient(120deg, var(--director-soft), transparent 70%);
}
.director-3d h4 { font-size: 15.5px; font-weight: 800; display: flex; align-items: center; gap: 8px; }
.director-3d h4::before { content: "◈"; color: var(--director); }
.director-3d p { margin-top: 8px; font-size: 13.5px; color: var(--text-2); }

/* ===================== 协同工作流 ===================== */
.steps { counter-reset: step; }
.step {
  position: relative;
  padding: 32px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel-strong);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: transform 0.35s, border-color 0.35s;
}
.step:hover { transform: translateY(-5px); border-color: color-mix(in srgb, var(--ac) 40%, transparent); }
.step[data-accent="canvas"] { --ac: var(--canvas); }
.step[data-accent="manager"] { --ac: var(--manager); }
.step[data-accent="director"] { --ac: var(--director); }
.step[data-accent="redraw"] { --ac: var(--redraw); }
.step-no {
  font-size: 44px;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(180deg, var(--ac), transparent 130%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.9;
}
.step h3 { margin-top: 16px; font-size: 20px; font-weight: 800; }
.step p { margin-top: 10px; font-size: 14px; color: var(--text-2); }
.step::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--ac) 20%, transparent), transparent 70%);
}

/* ===================== 下载区块 ===================== */
.dl-sec { padding-bottom: 40px; }

.dl-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.dl-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px 26px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel-strong);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: transform 0.35s, border-color 0.35s, box-shadow 0.35s;
}
.dl-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ac, var(--canvas)), transparent);
  opacity: 0.7;
}
.dl-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--ac) 40%, transparent);
  box-shadow: var(--card-shadow-hover);
}
.dl-card[data-accent="canvas"] { --ac: var(--canvas); --ac-soft: var(--canvas-soft); }
.dl-card[data-accent="manager"] { --ac: var(--manager); --ac-soft: var(--manager-soft); }
.dl-card[data-accent="director"] { --ac: var(--director); --ac-soft: var(--director-soft); }
.dl-card[data-accent="redraw"] { --ac: var(--redraw); --ac-soft: var(--redraw-soft); }

.dl-card-top { display: flex; align-items: center; gap: 13px; }
.dl-card .p-name { margin-top: 0; font-size: 20px; }
.dl-plat { margin-top: 4px; font-size: 12.5px; color: var(--text-3); }
.dl-desc { margin-top: 16px; font-size: 14px; color: var(--text-2); flex: 1; }

/* 「即将上线」标记 —— 安装包尚未上架时使用 */
.soon-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.4px;
  color: var(--ac);
  background: var(--ac-soft);
  border: 1px solid color-mix(in srgb, var(--ac) 30%, transparent);
}
.soon-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ac);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ac) 18%, transparent);
}
.soon-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.7;
}
.dl-card.is-soon .dl-btn,
.pp-cta.is-soon .btn-primary {
  background: transparent;
  border-color: var(--line);
  color: var(--text-2);
  box-shadow: none;
  pointer-events: none;
  opacity: 0.72;
}
.dl-card.is-soon .dl-btn:hover,
.pp-cta.is-soon .btn-primary:hover { transform: none; box-shadow: none; }

.dl-card .dl-btn {
  margin-top: 22px;
  width: 100%;
  justify-content: center;
  background: var(--ac);
  border-color: var(--ac);
  color: #fff;
  box-shadow: 0 10px 26px color-mix(in srgb, var(--ac) 34%, transparent);
}
.dl-card .dl-btn:hover {
  background: var(--ac);
  border-color: var(--ac);
  transform: translateY(-2px);
  box-shadow: 0 14px 32px color-mix(in srgb, var(--ac) 42%, transparent);
}

.dl-all {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--line-soft);
}
.dl-all-text { font-size: 14px; color: var(--text-3); }
.dl-all-link { font-size: 14px; font-weight: 700; color: var(--canvas); transition: opacity 0.25s; }

/* ---------- 四列下载卡片收紧 ---------- */
.grid-4 .dl-card { padding: 24px 20px 20px; }
.grid-4 .dl-card .p-name { margin-top: 12px; font-size: 18px; }
.grid-4 .dl-plat { font-size: 12px; }
.grid-4 .dl-desc { font-size: 13px; }
.grid-4 .dl-btn { margin-top: 18px; font-size: 13.5px; padding: 12px 18px; }

/* ---------- 转绘详情区：真实界面截图组 ---------- */
.shot-pair { display: grid; gap: 18px; }
.shot-pair .shot figcaption {
  padding: 10px 14px;
  font-size: 12.5px;
  color: var(--text-3);
  background: var(--panel);
  border-top: 1px solid var(--line-soft);
}
.shot figcaption { display: block; }

/* ---------- 转绘工作流四步条 ---------- */
.redraw-flow { margin-top: 30px; display: grid; gap: 10px; }
.redraw-flow li {
  position: relative;
  padding: 13px 16px 13px 52px;
  border-radius: 12px;
  border: 1px solid var(--line-soft);
  background: var(--panel);
  font-size: 13.5px;
  color: var(--text-2);
}
.redraw-flow li::before {
  content: counter(rf);
  counter-increment: rf;
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 800;
  color: var(--redraw);
  background: var(--redraw-soft);
  border: 1px solid color-mix(in srgb, var(--redraw) 32%, transparent);
}
.redraw-flow { counter-reset: rf; }
.redraw-flow strong { color: var(--text); font-weight: 700; }
.dl-all-link:hover { opacity: 0.78; }

/* ===================== CTA ===================== */
.cta-sec { padding-bottom: 130px; }
.cta-box {
  position: relative;
  text-align: center;
  padding: 76px 32px;
  border-radius: 26px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--cta-grad-1), var(--cta-grad-2));
  overflow: hidden;
}
.cta-glow {
  position: absolute;
  left: 50%;
  top: -40%;
  transform: translateX(-50%);
  width: 700px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--cta-glow), transparent 65%);
  pointer-events: none;
}
.cta-box h2 { position: relative; font-size: clamp(28px, 4vw, 40px); font-weight: 800; letter-spacing: 0.5px; }
.cta-box p { position: relative; margin-top: 14px; color: var(--text-2); }
.cta-actions { position: relative; display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 36px; }

/* ===================== 页脚 ===================== */
.footer { border-top: 1px solid var(--line-soft); padding: 40px 0 46px; background: var(--footer-bg); }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 20px 32px; }
.foot-brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 15.5px; }
.foot-brand img { border-radius: 7px; }
.foot-brand em { font-style: normal; background: linear-gradient(100deg, var(--canvas), var(--director)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.foot-links { display: flex; flex-wrap: wrap; gap: 22px; margin-left: auto; }
.foot-links a { font-size: 13.5px; color: var(--text-2); transition: color 0.25s; }
.foot-links a:hover { color: var(--text); }
.foot-copy { width: 100%; padding-top: 20px; border-top: 1px solid var(--line-soft); font-size: 12.5px; color: var(--text-3); }
.foot-copy a { color: var(--text-3); text-decoration: underline; text-underline-offset: 3px; }
.foot-copy a:hover { color: var(--text-2); }

/* ===================== 入场动画 ===================== */
/* 只有在 JS 正常运行时才隐藏初始状态：
   head 内联脚本给 <html> 加 .js 类，JS 失效 / 被拦截时内容依然完整可见 */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s cubic-bezier(0.2, 0.6, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.6, 0.2, 1); }
.js .reveal.is-in { opacity: 1; transform: none; }
.reveal:nth-child(2) { transition-delay: 0.06s; }
.reveal:nth-child(3) { transition-delay: 0.12s; }
.reveal:nth-child(4) { transition-delay: 0.18s; }

/* ===================== 响应式 ===================== */
@media (max-width: 1200px) {
  /* 四列产品矩阵在中等屏降为两列，避免卡片过窄 */
  .grid-4 { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .dl-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1080px) {
  .detail-grid { grid-template-columns: 1fr; gap: 44px; }
  .detail-grid.reverse .detail-copy { order: 1; }
  .detail-grid.reverse .detail-visual { order: 2; }
  .hero-orbit { opacity: 0.4; right: -240px; }
  .mock { transform: none; }
  .mock:hover { transform: none; }
}

@media (max-width: 860px) {
  .nav { padding: 0 20px; gap: 14px; }
  .nav-links { display: none; }
  .theme-toggle { margin-left: auto; }
  .nav-cta { margin-left: 0; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .dl-grid { grid-template-columns: 1fr; }
  .section { padding: 76px 0; }
  .detail { padding-top: 70px; padding-bottom: 70px; }
  .feat-grid { grid-template-columns: 1fr; }
  .hero-orbit { display: none; }
  .mock-manager .mock-body { grid-template-columns: 132px 1fr; }
  .mgr-side { padding: 12px 8px; }
  .mgr-acc { font-size: 11.5px; }
}

@media (max-width: 560px) {
  .wrap { width: calc(100% - 36px); }
  .hero { padding-top: calc(var(--nav-h) + 36px); }
  .hero-actions .btn { flex: 1; justify-content: center; }
  .mock-manager .mock-body { grid-template-columns: 1fr; }
  .mgr-side { border-right: none; border-bottom: 1px solid rgba(255, 255, 255, 0.06); grid-template-columns: 1fr 1fr; display: grid; }
  .mgr-side-title { grid-column: 1 / -1; }
  .foot-links { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ============================================================
   独立产品页（product page）专用样式
   ============================================================ */

/* ---------- 产品页 Hero ---------- */
.pp-hero { padding-top: calc(var(--nav-h) + 72px); padding-bottom: 68px; position: relative; overflow: hidden; }
.pp-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(900px 420px at 22% -8%, color-mix(in srgb, var(--ac) 16%, transparent), transparent 70%);
  pointer-events: none;
}
.pp-hero-inner { position: relative; display: grid; grid-template-columns: 1.06fr 0.94fr; gap: 56px; align-items: center; }
.pp-crumb { display: flex; align-items: center; gap: 9px; font-size: 13px; color: var(--text-3); margin-bottom: 20px; }
.pp-crumb a { color: var(--text-3); transition: color 0.2s; }
.pp-crumb a:hover { color: var(--ac); }
.pp-crumb i { font-style: normal; opacity: 0.5; }
.pp-title { font-size: clamp(34px, 4.6vw, 56px); font-weight: 800; line-height: 1.14; letter-spacing: 0.5px; }
.pp-title em {
  font-style: normal;
  background: linear-gradient(100deg, var(--ac), color-mix(in srgb, var(--ac) 45%, var(--canvas)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.pp-tagline { margin-top: 20px; font-size: 18px; color: var(--text-2); line-height: 1.7; max-width: 30em; }
.pp-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.pp-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 15px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ac);
  border: 1px solid color-mix(in srgb, var(--ac) 32%, transparent);
  background: var(--ac-soft);
}
.pp-badge svg { width: 15px; height: 15px; }
.pp-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 32px; }

/* ---------- 关键指标条 ---------- */
.pp-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 54px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--line);
}
.pp-stat { padding: 20px 18px; background: var(--panel-strong); }
.pp-stat b { display: block; font-size: 21px; font-weight: 800; color: var(--ac); letter-spacing: 0.3px; }
.pp-stat span { display: block; margin-top: 5px; font-size: 12.5px; color: var(--text-3); }

/* ---------- 产品页 Hero 视觉块（独立页专属，与首页详情区隔离） ---------- */
/* 首页 .detail-visual 位于窄栏详情区，带 3D 透视倾斜；
   独立页 Hero 是宽屏两栏，倾斜会导致变形，这里覆盖为正视 + 更强投影 */
.pp-hero .detail-visual { position: relative; order: 0; }
.pp-hero .mock {
  transform: none;
  box-shadow: 0 30px 80px rgba(20, 24, 60, 0.22);
}
[data-theme="dark"] .pp-hero .mock { box-shadow: 0 30px 90px rgba(0, 0, 0, 0.6); }
.pp-hero .mock-body { height: 360px; }
.pp-hero .mock-manager .mock-body { min-height: 360px; }

/* ---------- 产品页章节（与首页 .section / .sec-head 保持同一节奏） ---------- */
.pp-sec { padding: 108px 0; }
.pp-sec + .pp-sec { border-top: 1px solid var(--line-soft); }
/* 独立页的分区头直接复用首页 .sec-head / .sec-title / .sec-desc 的规格 */
.pp-sec-head { max-width: 680px; margin-bottom: 56px; }
.pp-sec-head .sec-label { color: var(--text-3); }
.pp-sec-head h2 {
  margin-top: 14px;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.28;
  font-weight: 800;
  letter-spacing: 0.5px;
}
.pp-sec-head p { margin-top: 16px; color: var(--text-2); font-size: 16px; }

/* ---------- 功能网格（3 列） ---------- */
.pp-feats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.pp-feat {
  padding: 26px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel-strong);
  box-shadow: var(--card-shadow);
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.pp-feat:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--ac) 38%, transparent); box-shadow: var(--card-shadow-hover); }
.pp-feat-ico {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  color: var(--ac);
  background: var(--ac-soft);
  border: 1px solid color-mix(in srgb, var(--ac) 28%, transparent);
}
/* SVG 兜底：任何未显式定尺寸的行内 SVG 都不允许撑爆布局
   （旧版 CSS 缓存与新版 HTML 混搭时，内联 SVG 会退化成 300x150 甚至撑满容器） */
svg:not([width]):not([height]) { max-width: 100%; max-height: 100%; }
.pp-badge svg { width: 15px; height: 15px; flex: 0 0 auto; }
.pp-feat-ico svg { width: 22px; height: 22px; flex: 0 0 auto; }
.pp-feat h3 { margin-top: 18px; font-size: 20px; font-weight: 800; letter-spacing: 0.3px; }
.pp-feat p { margin-top: 10px; font-size: 13.5px; color: var(--text-2); line-height: 1.78; }
.pp-feat ul { margin-top: 14px; display: grid; gap: 7px; }
.pp-feat ul li { position: relative; padding-left: 18px; font-size: 13px; color: var(--text-2); }
.pp-feat ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.6em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--ac);
}

/* ---------- 深度图文（截图 + 文案） ---------- */
.pp-showcase { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.pp-showcase.reverse .pp-show-copy { order: 2; }
.pp-showcase.reverse .pp-show-media { order: 1; }
.pp-show-copy h3 { font-size: clamp(22px, 2.6vw, 30px); font-weight: 800; line-height: 1.3; }
.pp-show-copy p { margin-top: 16px; color: var(--text-2); font-size: 15px; line-height: 1.86; }
.pp-show-media figure { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--mock-shadow); background: #101020; }
.pp-show-media img { width: 100%; height: auto; display: block; }
.pp-show-media figcaption { display: block; padding: 11px 15px; font-size: 12.5px; color: var(--text-3); background: var(--panel); border-top: 1px solid var(--line-soft); }

/* ---------- 规格表 ---------- */
.pp-spec {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--panel-strong);
  box-shadow: var(--card-shadow);
}
.pp-spec-row { display: grid; grid-template-columns: 210px 1fr; border-bottom: 1px solid var(--line-soft); }
.pp-spec-row:last-child { border-bottom: none; }
.pp-spec-row dt { padding: 15px 22px; font-size: 13.5px; font-weight: 700; color: var(--text-3); background: var(--panel); }
.pp-spec-row dd { padding: 15px 24px; margin: 0; font-size: 14px; color: var(--text-2); }

/* ---------- FAQ ---------- */
.pp-faq { display: grid; gap: 12px; max-width: 900px; }
.pp-faq details {
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  overflow: hidden;
  transition: border-color 0.25s;
}
.pp-faq details[open] { border-color: color-mix(in srgb, var(--ac) 34%, transparent); }
.pp-faq summary {
  padding: 17px 22px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.pp-faq summary::-webkit-details-marker { display: none; }
.pp-faq summary::after {
  content: "+";
  flex: none;
  font-size: 20px;
  font-weight: 400;
  color: var(--ac);
  line-height: 1;
  transition: transform 0.25s;
}
.pp-faq details[open] summary::after { transform: rotate(45deg); }
.pp-faq p { padding: 0 22px 19px; font-size: 14px; color: var(--text-2); line-height: 1.82; }

/* ---------- 步骤流程 ---------- */
.pp-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: pps; }
.pp-step {
  position: relative;
  padding: 28px 22px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel-strong);
  box-shadow: var(--card-shadow);
}
.pp-step::before {
  content: counter(pps);
  counter-increment: pps;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  font-size: 15px;
  font-weight: 800;
  color: var(--ac);
  background: var(--ac-soft);
  border: 1px solid color-mix(in srgb, var(--ac) 30%, transparent);
}
.pp-step h3 { margin-top: 18px; font-size: 16.5px; font-weight: 800; }
.pp-step p { margin-top: 10px; font-size: 13.5px; color: var(--text-2); line-height: 1.76; }

/* ---------- 上下产品导航 ---------- */
.pp-switch { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pp-switch-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel-strong);
  transition: transform 0.3s, border-color 0.3s;
}
.pp-switch-item:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--sw-ac, var(--canvas)) 40%, transparent); }
.pp-switch-item span { font-size: 12px; color: var(--text-3); letter-spacing: 1px; }
.pp-switch-item strong { font-size: 17px; font-weight: 800; color: var(--sw-ac, var(--canvas)); }
.pp-switch-item em { font-style: normal; font-size: 13px; color: var(--text-2); }
.pp-switch-item.next { text-align: right; align-items: flex-end; }

/* ---------- 产品页 CTA ---------- */
.pp-cta {
  margin-top: 68px;
  padding: 52px 46px;
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid var(--line);
  background: linear-gradient(135deg, color-mix(in srgb, var(--ac) 13%, transparent), transparent 62%), var(--panel-strong);
  box-shadow: var(--card-shadow);
  text-align: center;
}
.pp-cta h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; letter-spacing: 0.4px; }
.pp-cta p { margin-top: 13px; color: var(--text-2); font-size: 15px; }
.pp-cta-actions { display: flex; flex-wrap: wrap; gap: 13px; justify-content: center; margin-top: 28px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .pp-hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .pp-showcase { grid-template-columns: 1fr; gap: 34px; }
  .pp-showcase.reverse .pp-show-copy { order: 1; }
  .pp-showcase.reverse .pp-show-media { order: 2; }
  .pp-feats { grid-template-columns: repeat(2, 1fr); }
  .pp-steps { grid-template-columns: repeat(2, 1fr); }
  .pp-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .pp-hero { padding-top: calc(var(--nav-h) + 40px); padding-bottom: 52px; }
  .pp-sec { padding: 62px 0; }
  .pp-feats { grid-template-columns: 1fr; }
  .pp-steps { grid-template-columns: 1fr; }
  .pp-switch { grid-template-columns: 1fr; }
  .pp-switch-item.next { text-align: left; align-items: flex-start; }
  .pp-spec-row { grid-template-columns: 1fr; }
  .pp-spec-row dt { padding-bottom: 4px; }
  .pp-cta { padding: 40px 24px; }
}

/* ---------- 下载卡片的详情次级链接 ---------- */
.dl-more {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-3);
  transition: color 0.22s;
}
.dl-more:hover { color: var(--ac); }

/* ===================== 视频教程区块（转绘产品页） ===================== */
/* 视频走 DO Spaces CDN 直链（video/mp4），原生 <video> 播放，不经过站点服务器 */

.pp-video { margin-top: 8px; }

.pp-video-frame {
  position: relative;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #101020;
  box-shadow: var(--mock-shadow);
  overflow: hidden;
}

.pp-video-frame video {
  display: block;
  width: 100%;
  height: auto;
  background: #101020;
}

/* ---------- 封面遮罩 + 醒目播放按钮 ---------- */
/* 未播放时用海报图打底，中间一枚大圆形播放按钮；播放后遮罩淡出露出原生控件 */
.pp-video-cover {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  width: 100%;
  height: 100%;
  padding: 20px;
  border: 0;
  cursor: pointer;
  font: inherit;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(8, 9, 20, 0.34) 0%, rgba(8, 9, 20, 0.62) 100%),
    url("/assets/shot-redraw-storyboard.jpg") center / cover no-repeat;
  -webkit-tap-highlight-color: transparent;
  transition: opacity 0.32s ease, visibility 0.32s ease;
}
.pp-video-cover.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* 大圆播放键：渐变底 + 光晕脉冲，尺寸足够手指点击 */
.pp-video-cover-ico {
  position: relative;
  display: grid;
  place-items: center;
  width: 86px;
  height: 86px;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, #e8447f 0%, #9a55ee 100%);
  box-shadow:
    0 12px 34px rgba(0, 0, 0, 0.4),
    0 0 0 8px rgba(255, 255, 255, 0.14);
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}
/* 光晕脉冲动画，提示"可点击" */
.pp-video-cover-ico::after {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.5);
  animation: ppVideoPulse 2s ease-out infinite;
}
@keyframes ppVideoPulse {
  0% { transform: scale(1); opacity: 0.75; }
  70% { transform: scale(1.42); opacity: 0; }
  100% { transform: scale(1.42); opacity: 0; }
}
.pp-video-cover:hover .pp-video-cover-ico { transform: scale(1.07); }
.pp-video-cover:active .pp-video-cover-ico { transform: scale(0.96); }
.pp-video-cover:focus-visible { outline: 3px solid rgba(255, 255, 255, 0.85); outline-offset: -4px; }

/* 播放键下方的文字 */
.pp-video-cover-txt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
}
.pp-video-cover-txt strong {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.6px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.55);
}
.pp-video-cover-txt em {
  font-style: normal;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.84);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* 手机端横屏引导条（桌面端由 JS 隐藏） */
.pp-video-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--line-soft);
  background: var(--ac-soft);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
}
.pp-video-hint svg { flex: none; color: var(--ac); }

/* 视频加载失败时隐藏播放遮罩，避免挡住降级提示 */
.pp-video-frame.is-failed .pp-video-cover { display: none; }

/* 无 <video> 源时的降级提示条（视频加载失败时给出直链入口） */
.pp-video-fallback {
  display: none;
  padding: 16px 20px;
  font-size: 13.5px;
  color: var(--text-2);
  background: var(--panel);
  border-top: 1px solid var(--line-soft);
}
.pp-video-fallback a { color: var(--ac); font-weight: 700; }
.pp-video-frame.is-failed video { display: none; }
.pp-video-frame.is-failed .pp-video-fallback { display: block; }

/* 播放器下方信息条 */
.pp-video-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: 16px;
  padding: 14px 18px;
  border-radius: 13px;
  border: 1px solid var(--line-soft);
  background: var(--panel);
}
.pp-video-meta-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.4px;
  color: var(--ac);
  background: var(--ac-soft);
}
.pp-video-meta-note { font-size: 13px; color: var(--text-2); }
.pp-video-meta-link {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ac);
  text-decoration: none;
  transition: opacity 0.22s;
}
.pp-video-meta-link:hover { opacity: 0.72; }

/* 教程要点列表 */
.pp-video-points {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.pp-video-point {
  padding: 18px 18px 18px 46px;
  position: relative;
  border-radius: 13px;
  border: 1px solid var(--line-soft);
  background: var(--panel);
  font-size: 13.5px;
  color: var(--text-2);
}
.pp-video-point h4 {
  margin-bottom: 5px;
  font-size: 14px;
  font-weight: 800;
  color: var(--text);
}
.pp-video-point::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 21px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ac-soft);
  box-shadow: inset 0 0 0 1.5px color-mix(in srgb, var(--ac) 45%, transparent);
}
.pp-video-point::after {
  content: "";
  position: absolute;
  left: 23px;
  top: 26px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ac);
}

@media (max-width: 1080px) {
  .pp-video-points { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .pp-video-points { grid-template-columns: 1fr; }
  .pp-video-meta-link { margin-left: 0; }
}

/* ============================================================
   移动端适配（手机端兼容）
   ============================================================ */

/* ---------- 视频区块：窄屏 ---------- */
@media (max-width: 860px) {
  /* 视频容器：锁定 16:9，避免加载时高度跳动 */
  .pp-video-frame {
    border-radius: 14px;
    box-shadow: 0 12px 34px rgba(30, 40, 90, 0.14);
  }
  .pp-video-frame video {
    width: 100%;
    height: auto;
    min-height: 190px;
    object-fit: contain;
    background: #101020;
  }
  /* 播放键放大到 76px，手指更好点 */
  .pp-video-cover-ico { width: 76px; height: 76px; }
  .pp-video-cover-ico svg { width: 26px; height: 26px; }
  .pp-video-cover-txt strong { font-size: 16px; }
  .pp-video-cover-txt em { font-size: 12px; }

  /* 信息条：竖排堆叠 */
  .pp-video-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 9px;
    padding: 13px 15px;
    margin-top: 13px;
  }
  .pp-video-meta-link { margin-left: 0; }
  .pp-video-meta-note { font-size: 12.5px; line-height: 1.5; }

  /* 要点卡：左侧圆点缩进减小 */
  .pp-video-point { padding: 15px 15px 15px 40px; font-size: 13px; }
  .pp-video-point::before { left: 15px; top: 18px; }
  .pp-video-point::after { left: 20px; top: 23px; }

  .pp-video-hint { font-size: 12px; padding: 9px 12px; line-height: 1.5; }
}

@media (max-width: 560px) {
  /* 超窄屏：播放键再放大一点，触摸目标 >= 60px */
  .pp-video-cover-ico { width: 66px; height: 66px; }
  .pp-video-cover-ico svg { width: 23px; height: 23px; }
  .pp-video-cover-txt strong { font-size: 15px; }
  .pp-video-cover-txt em { font-size: 11.5px; }
  .pp-video-frame video { min-height: 160px; }
}

/* ---------- 触摸设备：去掉 hover 位移，避免点击后元素乱跳 ---------- */
@media (hover: none) {
  .pp-video-cover:hover .pp-video-cover-ico { transform: none; }
  .nav-links a:hover { transform: none; box-shadow: 0 2px 10px rgba(111, 124, 247, 0.22); }
  .nav-cta:hover { transform: none; }
  .btn:hover { transform: none; }
}

/* ============================================================
   移动端导航（汉堡菜单）
   ≤860px 时 .nav-links 原为 display:none（完全无入口），
   改为可展开的下拉面板，保证「视频教程」等入口在手机上可达
   ============================================================ */

/* 汉堡按钮：桌面端隐藏 */
.nav-burger {
  position: relative;
  display: none;
  width: 40px;
  height: 40px;
  flex: none;
  padding: 0;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text-2);
  cursor: pointer;
  place-items: center;
  transition: color 0.25s, background 0.25s, border-color 0.25s, transform 0.25s;
}
.nav-burger:hover { color: var(--text); background: var(--ghost-hover); border-color: var(--ghost-border-hover); }
/* 三条线绝对定位居中：展开时能精确交叉成 X，不受行高/外边距干扰 */
.nav-burger span {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 18px;
  height: 1.9px;
  margin-left: -9px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.3s ease, opacity 0.2s ease;
}
.nav-burger span:nth-child(1) { transform: translateY(-6px); }
.nav-burger span:nth-child(2) { transform: translateY(0); }
.nav-burger span:nth-child(3) { transform: translateY(6px); }
/* 展开态：第一条下移右转、第三条上移左转 → 交叉成 X，中间一条淡出 */
.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(0) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; transform: scaleX(0.4); }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(0) rotate(-45deg); }

/* 遮罩层：菜单展开时压暗背景，点外部关闭 */
.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: 48;
  background: rgba(8, 10, 24, 0.42);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.28s ease, visibility 0.28s ease;
}
.nav-scrim.is-on { opacity: 1; visibility: visible; pointer-events: auto; }

@media (max-width: 860px) {
  .nav {
    gap: 12px;
    padding: 0 16px;
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }
  /* 品牌文字在窄屏收窄，给汉堡按钮腾位置 */
  .nav-brand-text { font-size: 15px; }
  .nav-burger { display: grid; }
  .theme-toggle { margin-left: auto; }

  /* 导航链接改为可展开的下拉面板 */
  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    z-index: 49;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 7px;
    margin-left: 0;
    padding: 14px 16px calc(16px + env(safe-area-inset-bottom));
    background: var(--panel-strong);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 44px rgba(12, 16, 40, 0.18);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    max-height: calc(100dvh - var(--nav-h));
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transition: transform 0.28s ease, opacity 0.28s ease, visibility 0.28s ease;
  }
  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  /* 面板内链接改为整行可点，触摸目标更大 */
  .nav-links a {
    padding: 11px 16px;
    border-radius: 12px;
    font-size: 14.5px;
    text-align: center;
    white-space: normal;
  }
  .nav-links a[aria-current="page"] {
    box-shadow: 0 4px 18px rgba(111, 124, 247, 0.4), inset 0 0 0 2px rgba(255, 255, 255, 0.28);
  }
}

/* 平板（561~860px）：菜单项排两列，减少面板高度 */
@media (min-width: 561px) and (max-width: 860px) {
  .nav-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px 10px;
    padding: 16px 20px calc(18px + env(safe-area-inset-bottom));
  }
  .nav-links a { font-size: 15px; padding: 12px 14px; }
}

@media (max-width: 560px) {
  .nav {
    padding: 0 12px;
    padding-left: max(12px, env(safe-area-inset-left));
    padding-right: max(12px, env(safe-area-inset-right));
    gap: 9px;
  }
  .nav-brand-text { font-size: 14px; }
  .nav-cta { padding: 7px 13px; font-size: 13px; }
  .nav-burger { width: 38px; height: 38px; }
}

/* 横屏且屏幕很矮时（如手机横放看视频）：压缩导航高度，避免遮挡内容 */
@media (orientation: landscape) and (max-height: 480px) {
  .nav { height: 54px; }
  .nav-links { top: 54px; }
}

/* ============================================================
   移动端横屏播放 · CSS 旋转兜底层
   由 assets/landscape.js 驱动（canvas.html / redraw.html 共用）
   —— 微信 / QQ / 各类内置浏览器不支持 Fullscreen API 时使用
   ============================================================ */
body.fu-ls-rot-open { overflow: hidden; }
.fu-ls-rot {
  position: fixed;
  inset: 0;
  z-index: 2147483000;
  background: #000;
  overflow: hidden;
}
.fu-ls-rot video {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100vh;
  height: 100vw;
  transform: translate(-50%, -50%) rotate(90deg);
  object-fit: contain;
  background: #000;
}
/* 设备已经横过来时不再旋转，直接铺满 */
.fu-ls-rot.is-land video {
  width: 100vw;
  height: 100vh;
  transform: translate(-50%, -50%);
}
.fu-ls-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 3;
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 50%;
  font-size: 24px;
  line-height: 1;
  color: #fff;
  background: rgba(255, 255, 255, .16);
  cursor: pointer;
}
.fu-ls-close:active { background: rgba(255, 255, 255, .3); }
/* 旋转层里隐藏封面遮罩（视频已全屏铺满） */
.fu-ls-rot .pp-video-cover { display: none !important; }

/* ---------- 悬浮「横屏」按钮（移动端） ---------- */
.pp-ls-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 6;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 34px;
  padding: 0 12px;
  border: 0;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .3px;
  color: #fff;
  background: rgba(10, 12, 30, .62);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, .28);
  cursor: pointer;
  transition: background .2s ease, transform .2s ease;
}
.pp-ls-btn svg { flex: none; }
.pp-ls-btn:active { transform: scale(.94); }
.pp-ls-btn.is-on { background: rgba(10, 12, 30, .82); }
@media (min-width: 861px) {
  .pp-ls-btn { display: none; }
}