/* ============================================================
   涅槃 AI · 综合站点（授权 + 官网）
   视觉体系移植自 niepanai.net 原站，默认亮色主题（可切深色）
   玻璃拟态 · 极光/星空背景 · 产品四色系统 · 真实界面 mock
   域名无关：所有路径使用相对路径，换域名即可直接生效
   ============================================================ */

/* ---------- 深色（可选，html 加 data-theme="dark" 即切换） ---------- */
html[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;

  --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;
}

/* ---------- 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;
}

* { 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;
  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; flex: none; filter: drop-shadow(0 6px 16px rgba(111,124,247,.45)); }
.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; }
.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); }
.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);
}

.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); }

.menu-btn { display: none; margin-left: auto; width: 42px; height: 42px; border-radius: 11px; border: 1px solid var(--line); background: var(--panel-strong); color: var(--text); font-size: 20px; cursor: pointer; }

/* 主题切换 */
.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 .25s, background .25s, border-color .25s, transform .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; }
html[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
html[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* ===================== 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); }

.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：浮动盾牌 logo */
.hero-orbit {
  position: absolute;
  right: -120px; top: 50%;
  transform: translateY(-50%);
  width: 560px; height: 560px;
  pointer-events: none;
  z-index: 1;
}
.orbit-ring { position: absolute; inset: 0; border-radius: 50%; border: 1px solid var(--orbit); }
.orbit-ring.r2 { inset: 80px; }
.orbit-logo {
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 132px; height: 132px;
  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 ===================== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }

.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;
}
.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; }
.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);
  font-size: 21px;
}
.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; }
.p-price { color: var(--ac); font-weight: 800; font-size: 15px; }

/* ===================== 产品实力展示（mock 真实界面） ===================== */
.showcase { padding-top: 96px; padding-bottom: 96px; }
.showcase + .showcase { border-top: 1px solid var(--line-soft); }
.showcase[data-accent="canvas"] { --ac: var(--canvas); --ac-soft: var(--canvas-soft); }
.showcase[data-accent="manager"] { --ac: var(--manager); --ac-soft: var(--manager-soft); }
.showcase[data-accent="director"] { --ac: var(--director); --ac-soft: var(--director-soft); }
.showcase[data-accent="redraw"] { --ac: var(--redraw); --ac-soft: var(--redraw-soft); }
.showcase-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 64px; align-items: center; }
.showcase-grid.reverse .showcase-copy { order: 2; }
.showcase-grid.reverse .showcase-visual { order: 1; }
.showcase-title { font-size: clamp(30px, 3.6vw, 42px); line-height: 1.22; font-weight: 800; letter-spacing: 0.5px; }
.showcase-title small { display: block; margin-top: 10px; font-size: clamp(15px, 1.7vw, 18px); font-weight: 500; color: var(--text-2); }
.showcase-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); }

/* 流程条（STEP 虚线胶囊） */
.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); }

/* 说明补充块 */
.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);
}

.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: 320px; 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: 320px; }
.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-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; }

/* ===================== 协同工作流 / 步骤 ===================== */
.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%);
}

/* ===================== 下载卡片 ===================== */
.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; }
.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 { transform: translateY(-2px); box-shadow: 0 14px 32px color-mix(in srgb, var(--ac) 42%, transparent); }

/* ===================== 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; }

/* ===================== 状态徽章 ===================== */
.status { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; border-radius: 999px; background: rgba(47,210,184,.12); color: var(--manager); font-size: 13.5px; border: 1px solid rgba(47,210,184,.3); margin-top: 28px; }
.status .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--manager); box-shadow: 0 0 8px var(--manager); }
.status.bad { background: rgba(255,93,108,.12); color: #ff5d6c; border-color: rgba(255,93,108,.3); }
.status.bad .dot { background: #ff5d6c; box-shadow: 0 0 8px #ff5d6c; }

/* ===================== 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 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); }

/* ===================== 入场动画 ===================== */
.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) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .dl-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 1080px) {
  .showcase-grid { grid-template-columns: 1fr; gap: 44px; }
  .showcase-grid.reverse .showcase-copy { order: 1; }
  .showcase-grid.reverse .showcase-visual { order: 2; }
  .hero-orbit { opacity: 0.35; right: -200px; }
  .mock { transform: none; }
  .mock:hover { transform: none; }
}
@media (max-width: 860px) {
  .nav { padding: 0 20px; gap: 14px; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-brand { margin-right: auto; }
  .theme-toggle { order: 2; }
  .menu-btn { display: grid; place-items: center; order: 3; margin-left: 0; }
  .nav-links.open {
    display: flex; position: absolute; top: calc(var(--nav-h) + 8px); right: 16px; left: 16px;
    flex-direction: column; align-items: stretch; gap: 6px;
    background: var(--panel-strong); border: 1px solid var(--line); border-radius: 14px; padding: 10px;
    box-shadow: 0 20px 50px rgba(0,0,0,.5);
  }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .grid-5 { grid-template-columns: 1fr 1fr; }
  .dl-grid { grid-template-columns: 1fr; }
  .section { padding: 76px 0; }
  .showcase { 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; }
  .grid-5 { grid-template-columns: 1fr; }
  .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; }
}