/* ============================================================
   剪影官网 · 暗色影院风
   设计变量在 :root，改配色/圆角/阴影只动这里
   ============================================================ */
:root {
  --bg: #0b0d14;
  --bg-2: #0e1120;
  --panel: #141825;
  --panel-2: #181d30;
  --glass: rgba(255, 255, 255, .04);
  --glass-2: rgba(255, 255, 255, .07);
  --line: rgba(255, 255, 255, .08);
  --line-2: rgba(255, 255, 255, .14);
  --text: #e6e9f0;
  --text-2: #9aa3b5;
  --text-3: #6b7488;
  --brand-1: #6c7bff;
  --brand-2: #9a5cff;
  --brand-grad: linear-gradient(135deg, #6c7bff 0%, #9a5cff 100%);
  --ok: #34d399;
  --amber: #fbbf24;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow: 0 20px 60px rgba(0, 0, 0, .5);
  --glow: 0 10px 40px rgba(108, 123, 255, .28);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color-scheme: dark;
  --nav-bg: rgba(11, 13, 20, .82);
  --nav-bg-mobile: rgba(11, 13, 20, .97);
  --footer-bg: rgba(0, 0, 0, .25);
  --chip-bg: rgba(20, 24, 37, .9);
  --to-top-bg: rgba(20, 24, 37, .9);
  --modal-bg: linear-gradient(180deg, #171c2e, #101426);
  --mini-bg: rgba(0, 0, 0, .18);
  --stroke-faint: rgba(255, 255, 255, .05);
  --grid-line: rgba(255, 255, 255, .018);
  --vignette: rgba(0, 0, 0, .6);
  --hero-glass: rgba(255, 255, 255, .03);
  --card-hover: rgba(255, 255, 255, .06);
  --btn-ghost-bg: rgba(255, 255, 255, .03);
  --hero-fade: rgba(11, 13, 20, .55);
  --cta-bg: radial-gradient(800px 300px at 50% 0%, rgba(108,123,255,.22), transparent 70%), linear-gradient(180deg, rgba(20,24,37,.9), rgba(14,17,32,.96));
}

/* ============ 浅色模式 ============ */
html[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f6fb;
  --bg-2: #eef0f7;
  --panel: #ffffff;
  --panel-2: #f3f4fa;
  --glass: rgba(20, 24, 37, .04);
  --glass-2: rgba(20, 24, 37, .08);
  --line: rgba(20, 24, 37, .10);
  --line-2: rgba(20, 24, 37, .16);
  --text: #151a2b;
  --text-2: #565e75;
  --text-3: #8b92a7;
  --shadow: 0 20px 60px rgba(30, 40, 90, .12);
  --glow: 0 10px 40px rgba(108, 123, 255, .20);
  --nav-bg: rgba(245, 246, 251, .85);
  --nav-bg-mobile: rgba(245, 246, 251, .97);
  --footer-bg: rgba(20, 24, 37, .05);
  --chip-bg: rgba(255, 255, 255, .92);
  --to-top-bg: rgba(255, 255, 255, .92);
  --modal-bg: linear-gradient(180deg, #ffffff, #eef0f7);
  --mini-bg: rgba(20, 24, 37, .06);
  --stroke-faint: rgba(20, 24, 37, .08);
  --grid-line: rgba(20, 24, 37, .05);
  --vignette: rgba(255, 255, 255, .5);
  --hero-glass: rgba(20, 24, 37, .04);
  --card-hover: rgba(20, 24, 37, .05);
  --btn-ghost-bg: rgba(20, 24, 37, .04);
  --hero-fade: rgba(245, 246, 251, .5);
  --cta-bg: radial-gradient(800px 300px at 50% 0%, rgba(108,123,255,.14), transparent 70%), linear-gradient(180deg, #ffffff, #f2f3fa);
}
/* 浅色模式局部修正 */
html[data-theme="light"] .aud-note { color: #7a5a0e; }
html[data-theme="light"] .cmp-before .cmp-badge { color: #7a5a0e; }
html[data-theme="light"] .cmp-after .cmp-badge { color: #0f7a4d; }
html[data-theme="light"] .app-window { box-shadow: 0 46px 120px rgba(30, 40, 90, .18), 0 0 90px rgba(108, 123, 255, .10); }
html[data-theme="light"] .grain { opacity: .03; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
section[id], div[id] { scroll-margin-top: 76px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}
/* 影院胶片颗粒 */
.grain {
  position: fixed; inset: -2px; z-index: 4; pointer-events: none; opacity: .045;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='160' height='160' filter='url(%23n)'/></svg>");
}
img { max-width: 100%; }
svg { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
sup { font-size: .55em; color: var(--text-3); }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.section { padding: clamp(84px, 9vw, 132px) 0; position: relative; }
.section .wrap { position: relative; z-index: 1; }
.sec-bigword {
  position: absolute; top: 34px; left: 50%; transform: translateX(-50%);
  font-size: clamp(96px, 17vw, 220px); font-weight: 900; line-height: 1;
  color: transparent; -webkit-text-stroke: 1px var(--stroke-faint);
  white-space: nowrap; pointer-events: none; user-select: none; z-index: 0;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: .18em; font-weight: 600;
  color: var(--text-2); text-transform: uppercase;
  margin: 0 0 14px;
}
.eyebrow.center { display: flex; justify-content: center; }
.eyebrow::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--brand-grad); }
.sec-title { font-size: clamp(30px, 4vw, 46px); line-height: 1.22; font-weight: 800; margin: 0 0 12px; letter-spacing: -.02em; }
.sec-sub { color: var(--text-2); max-width: 640px; margin: 0 auto 48px; font-size: 16px; }
.sec-title, .sec-sub { text-align: center; }
.grad {
  background: var(--brand-grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: 10px; border: 1px solid transparent;
  font-size: 15px; font-weight: 600; white-space: nowrap;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn .ico { width: 18px; height: 18px; }
.btn:active { transform: translateY(1px) scale(.99); }
.btn-primary {
  background: var(--brand-grad); color: #fff;
  box-shadow: var(--glow);
}
.btn-primary:hover { box-shadow: 0 14px 44px rgba(108, 123, 255, .42); transform: translateY(-2px); }
.btn-ghost { background: var(--btn-ghost-bg); color: var(--text); border-color: var(--line-2); }
.btn-ghost:hover { background: var(--glass-2); border-color: rgba(108,123,255,.4); transform: translateY(-2px); }
.btn-sm { padding: 8px 15px; font-size: 13.5px; }
.btn-lg { padding: 14px 26px; font-size: 16px; }
.btn-xl { padding: 16px 34px; font-size: 17px; }
.btn-block { width: 100%; }

/* ---------------- 顶部导航 ---------------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding-top: env(safe-area-inset-top, 0px);
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled { background: var(--nav-bg); backdrop-filter: blur(14px); border-color: var(--line); box-shadow: 0 8px 30px rgba(0,0,0,.35); }
.nav-inner { max-width: 1120px; margin: 0 auto; padding: 0 24px; height: 64px; display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-logo { width: 32px; height: 32px; flex: none; }
.brand-name { font-weight: 800; font-size: 18px; letter-spacing: .02em; }
.brand-tag { color: var(--text-3); font-size: 12px; border-left: 1px solid var(--line-2); padding-left: 10px; }
.nav-links { display: flex; gap: 26px; margin-left: auto; }
.nav-links a { color: var(--text-2); font-size: 15px; transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--text); font-weight: 700; }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.theme-toggle {
  width: 38px; height: 38px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--btn-ghost-bg); border: 1px solid var(--line-2); color: var(--text-2);
  padding: 0; transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.theme-toggle:hover { color: var(--text); border-color: rgba(108,123,255,.4); background: var(--glass-2); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .ic-moon { display: none; }
html[data-theme="light"] .theme-toggle .ic-sun { display: none; }
html[data-theme="light"] .theme-toggle .ic-moon { display: block; }
.nav-burger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; padding: 8px; }
.nav-burger span { width: 20px; height: 2px; background: var(--text); border-radius: 2px; transition: .25s; }

/* ---------------- Hero ---------------- */
.hero {
  position: relative; min-height: 100vh;
  min-height: 100dvh; /* 移动端 URL 栏动态高度，防止首屏被裁 */
  display: flex; align-items: center;
  padding: 150px 0 72px; overflow: hidden;
}
/* 首屏底部渐隐 · 视觉向内容区下沉 */
.hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 180px;
  background: linear-gradient(180deg, transparent, var(--hero-fade) 70%, var(--bg));
  pointer-events: none;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none; overflow: hidden;
  background:
    linear-gradient(180deg, rgba(108,123,255,.16), rgba(255,255,255,0) 42%),
    radial-gradient(120% 95% at 50% 18%, transparent 52%, var(--vignette) 100%),
    radial-gradient(900px 520px at 82% 8%, rgba(108,123,255,.15), transparent 60%),
    radial-gradient(820px 460px at 12% 22%, rgba(154,92,255,.13), transparent 60%),
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%, 46px 46px, 46px 46px;
  mask-image: radial-gradient(1300px 760px at 50% 26%, #000 26%, transparent 82%);
  -webkit-mask-image: radial-gradient(1300px 760px at 50% 26%, #000 26%, transparent 82%);
}
/* 极光光晕 */
.blob { position: absolute; border-radius: 50%; filter: blur(80px); opacity: .5; pointer-events: none; }
.b1 { width: 560px; height: 560px; top: -160px; left: -120px; background: rgba(108,123,255,.55); animation: drift1 20s ease-in-out infinite; }
.b2 { width: 480px; height: 480px; top: 16%; right: -140px; background: rgba(154,92,255,.5); animation: drift2 24s ease-in-out infinite; }
.b3 { width: 420px; height: 420px; bottom: -120px; left: 30%; background: rgba(52,211,153,.16); animation: drift3 28s ease-in-out infinite; }
@keyframes drift1 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(70px,50px) scale(1.14); } }
@keyframes drift2 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(-80px,30px) scale(1.1); } }
@keyframes drift3 { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(40px,-60px) scale(1.16); } }
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-inner {
  position: relative; z-index: 2; max-width: 1120px; margin: 0 auto; padding: 0 24px;
  text-align: center;
}
/* Hero 眉标 · 胶囊徽章 */
.hero .eyebrow {
  padding: 8px 18px; border: 1px solid var(--line-2);
  border-radius: 999px; background: var(--hero-glass);
  letter-spacing: .16em;
}
.hero .eyebrow::before { width: 5px; height: 5px; }
.hero-copy { max-width: 900px; margin: 0 auto; }
.hero-title {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  font-size: clamp(64px, 10vw, 132px); line-height: 1.02; font-weight: 900;
  letter-spacing: -.02em; margin: 30px 0 30px;
}
/* 前置词 · 与主词差异化：小号、疏排、弱化 */
.hero-title .t-pre {
  font-size: clamp(20px, 2.6vw, 34px); font-weight: 600; color: var(--text-2);
  letter-spacing: .6em; margin-right: -.6em;
}
.hero-title .grad { filter: drop-shadow(0 0 34px rgba(108,123,255,.32)); }
.hero-sub { color: var(--text-2); font-size: 18px; margin: 0 auto 40px; max-width: 640px; }
.hero-sub .hs-main strong { color: var(--text); }
.hero-sub .hs-note { display: block; margin-top: 12px; font-size: 14px; color: var(--text-3); letter-spacing: .02em; }
.hero-sub strong { color: var(--text); }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-bottom: 0; }
.hero-note { color: var(--text-3); font-size: 12px; margin: 18px 0 0; }

/* 下滑引导 · 渐变流光双箭头 */
.scroll-cue {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  color: var(--text-3); z-index: 3; text-decoration: none;
  transition: color .2s ease;
}
.scroll-cue:hover { color: var(--text-2); }
.sc-arrows { position: relative; width: 26px; height: 48px; }
.sc-chev {
  position: absolute; left: 0; top: 0; width: 26px; height: 26px;
  animation: scChev 2s ease-in-out infinite;
}
.sc-chev path {
  fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
  stroke: url(#chev-grad);
  filter: drop-shadow(0 2px 6px rgba(108, 123, 255, .45));
}
.sc-chev:nth-child(2) { top: 22px; animation-delay: 1s; }
@keyframes scChev {
  0%, 100% { transform: translateY(-2px); opacity: 0; }
  30% { opacity: 1; }
  70% { transform: translateY(6px); opacity: 0; }
}
.sc-text { font-size: 12px; letter-spacing: .24em; }

/* ---- CSS 拟真产品窗口 ---- */
.showcase-visual { position: relative; margin: 56px auto 0; max-width: 920px; }
.showcase-visual::after {
  content: ""; position: absolute; left: 50%; bottom: -46px; width: 84%; height: 56px;
  transform: translateX(-50%);
  background: radial-gradient(50% 100% at 50% 100%, rgba(108,123,255,.28), transparent 70%);
  filter: blur(6px); pointer-events: none;
}

/* ---------------- 核心价值卡片 ---------------- */
.values .sec-sub { max-width: 820px; }
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.value {
  position: relative; overflow: hidden;
  background: var(--glass); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 30px 26px 34px;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.value::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(108,123,255,.65), transparent);
  opacity: 0; transition: opacity .3s ease;
}
.value::after {
  content: attr(data-num);
  position: absolute; right: 14px; bottom: -8px;
  font-size: 86px; font-weight: 900; line-height: 1;
  color: transparent; -webkit-text-stroke: 1px var(--stroke-faint);
  pointer-events: none;
}
.value:hover {
  transform: translateY(-6px); border-color: rgba(108,123,255,.4);
  box-shadow: 0 24px 60px rgba(0,0,0,.45), 0 0 0 1px rgba(108,123,255,.08);
}
.value:hover::before { opacity: 1; }
.value-ico {
  width: 48px; height: 48px; border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(108,123,255,.12); border: 1px solid rgba(108,123,255,.25);
  color: #a9b4ff; margin-bottom: 22px;
}
.value-ico svg { width: 24px; height: 24px; }
.value h3 { font-size: 18px; margin: 0 0 8px; }
.value p { font-size: 13.5px; line-height: 1.75; color: var(--text-2); margin: 0; max-width: 220px; }
.app-window {
  position: relative; border-radius: 22px; overflow: hidden;
  border: 1px solid transparent;
  background:
    linear-gradient(180deg, #161b2e, #0f1322) padding-box,
    linear-gradient(140deg, rgba(108,123,255,.55), rgba(255,255,255,.10) 30%, rgba(154,92,255,.55) 100%) border-box;
  box-shadow: 0 46px 120px rgba(0,0,0,.62), 0 0 90px rgba(108,123,255,.16);
  animation: windowFloat 8s ease-in-out infinite;
}
@keyframes windowFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.app-titlebar {
  display: flex; align-items: center; gap: 8px; padding: 12px 16px;
  background: rgba(255,255,255,.03); border-bottom: 1px solid var(--line);
}
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.r { background: #ff5f57; } .dot.y { background: #febc2e; } .dot.g { background: #28c840; }
.tbar-title { margin-left: 10px; color: var(--text-3); font-size: 12.5px; }
.tbar-live { margin-left: auto; font-size: 11px; color: #a9b4ff; border: 1px solid rgba(108,123,255,.35); background: rgba(108,123,255,.1); border-radius: 20px; padding: 2px 10px; }

/* 实机截图 */
.shot-stage { position: relative; }
.shot-stage img { display: block; width: 100%; height: auto; aspect-ratio: 1280 / 870; object-fit: cover; background: #0f1322; transition: opacity .3s ease; }
.shot-stage::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(255,255,255,.03), transparent 12%, transparent 88%, rgba(0,0,0,.25));
}
.shot-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 20px; }
.st-tab {
  font-family: inherit; font-size: 13px; font-weight: 600; color: var(--text-2);
  background: var(--btn-ghost-bg); border: 1px solid var(--line-2); border-radius: 30px;
  padding: 7px 16px; transition: all .2s ease;
}
.st-tab:hover { color: var(--text); border-color: rgba(108,123,255,.4); }
.st-tab.active { color: #fff; background: var(--brand-grad); border-color: transparent; box-shadow: var(--glow); }

/* 进度条（功能卡片复用） */
.bar { flex: 1; height: 7px; border-radius: 4px; background: rgba(255,255,255,.06); overflow: hidden; }
.bar .fill { display: block; height: 100%; width: 0; border-radius: 4px; }
.bar .fill.ok { background: var(--ok); width: var(--w); }
.bar .fill.run {
  background: var(--brand-grad); width: var(--w);
  position: relative; animation: fillShimmer 2s linear infinite;
}
@keyframes fillShimmer { 0% { filter: brightness(1); } 50% { filter: brightness(1.35); } 100% { filter: brightness(1); } }

.float-chip {
  position: absolute; z-index: 3;
  font-size: 12.5px; font-weight: 600; color: var(--text);
  background: var(--chip-bg); border: 1px solid var(--line-2);
  backdrop-filter: blur(8px);
  padding: 8px 14px; border-radius: 30px;
  box-shadow: var(--shadow);
  animation: chipFloat 5s ease-in-out infinite;
}
.chip-1 { top: -18px; right: -8px; }
.chip-2 { bottom: 84px; left: -30px; animation-delay: .8s; }
.chip-3 { bottom: -18px; right: 44px; animation-delay: 1.6s; }
.chip-1::before, .chip-2::before, .chip-3::before { content: ""; width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: 7px; background: var(--brand-grad); vertical-align: middle; }
@keyframes chipFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* ---------------- 数字条 ---------------- */
.stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: linear-gradient(180deg, rgba(255,255,255,.02), transparent); }
.stats-inner { max-width: 1120px; margin: 0 auto; padding: 40px 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat { text-align: center; }
.stat .num {
  font-size: clamp(38px, 4.6vw, 52px); font-weight: 800; line-height: 1;
  background: var(--brand-grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  font-variant-numeric: tabular-nums;
}
.stat .unit { font-size: 15px; color: var(--text-2); margin-left: 5px; font-weight: 600; }
.stat .label { display: block; margin-top: 8px; color: var(--text-3); font-size: 13px; }

/* ---------------- 卡片通用 ---------------- */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card, .aud, .plan, .grow-card {
  background: var(--glass); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; position: relative;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease, background .25s ease;
}
.card:hover, .aud:hover, .plan:hover, .grow-card:hover {
  transform: translateY(-5px);
  border-color: rgba(108,123,255,.35);
  box-shadow: 0 18px 40px rgba(0,0,0,.35), 0 0 0 1px rgba(108,123,255,.08);
  background: var(--card-hover);
}
.card-ico, .bent-ico, .grow-ico {
  width: 46px; height: 46px; border-radius: 12px;
  background: rgba(108,123,255,.12); border: 1px solid rgba(108,123,255,.25);
  display: inline-flex; align-items: center; justify-content: center; color: #a9b4ff;
  margin-bottom: 16px;
}
.card-ico svg, .bent-ico svg, .grow-ico svg { width: 22px; height: 22px; }
.card h3, .bent h3, .aud h3, .grow-card h3 { font-size: 17px; margin: 0 0 8px; }
.card p, .bent p, .aud p, .grow-card p { color: var(--text-2); font-size: 14px; margin: 0; }
.pain-cards { margin-bottom: 40px; }
.pain-bridge { text-align: center; color: var(--text); font-size: 17px; font-weight: 600; }

/* ---------------- 前后对比 ---------------- */
.compare-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px;
  max-width: 920px; margin: 0 auto;
}
.cmp-col {
  position: relative; border-radius: var(--radius-lg);
  border: 1px solid var(--line); background: var(--glass);
  padding: 30px 28px 34px;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.cmp-col:hover { transform: translateY(-4px); }
.cmp-before { border-color: rgba(251, 191, 36, .28); }
.cmp-before:hover { border-color: rgba(251, 191, 36, .45); box-shadow: 0 18px 40px rgba(0,0,0,.35); }
.cmp-after {
  border-color: rgba(52, 211, 153, .35);
  background: linear-gradient(180deg, rgba(52,211,153,.06), rgba(108,123,255,.04));
}
.cmp-after:hover { border-color: rgba(52, 211, 153, .5); box-shadow: 0 18px 40px rgba(0,0,0,.35), 0 0 0 1px rgba(52,211,153,.12); }
.cmp-badge {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .06em;
  padding: 4px 12px; border-radius: 20px; margin-bottom: 16px;
}
.cmp-before .cmp-badge { color: #e8d9b0; background: rgba(251,191,36,.12); border: 1px solid rgba(251,191,36,.3); }
.cmp-after .cmp-badge { color: #9ff0cf; background: rgba(52,211,153,.12); border: 1px solid rgba(52,211,153,.35); }
.cmp-col h3 { font-size: 20px; margin: 0 0 14px; }
.cmp-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.cmp-col li { position: relative; padding-left: 24px; color: var(--text-2); font-size: 14.5px; line-height: 1.7; }
.cmp-col li::before {
  content: ""; position: absolute; left: 0; top: .68em;
  width: 7px; height: 7px; border-radius: 50%;
}
.cmp-before li::before { background: var(--amber); }
.cmp-after li::before { background: var(--ok); }
.cmp-col li b { color: var(--text); font-weight: 700; }
.cmp-bridge { text-align: center; color: var(--text); font-size: 17px; font-weight: 600; margin: 36px 0 0; }

/* ---------------- 三步流程 ---------------- */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; gap: 18px; }
.step {
  display: flex; gap: 22px; align-items: flex-start;
  background: var(--glass); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 28px; transition: transform .25s ease, border-color .25s ease;
}
.step:hover { transform: translateY(-4px); border-color: rgba(108,123,255,.35); }
.step-no {
  flex: none; width: 52px; height: 52px; border-radius: 14px;
  background: var(--brand-grad); color: #fff;
  font-size: 22px; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--glow);
}
.step-body h3 { font-size: 18px; margin: 0 0 6px; }
.step-body p { color: var(--text-2); font-size: 15px; margin: 0; max-width: 760px; }

/* ---------------- Bento 功能 ---------------- */
.bento { display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; }
.bent { grid-column: span 4; background: var(--glass); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease, background .25s ease; position: relative; overflow: hidden; }
.bent.cell-lg { grid-column: span 6; }
.bent:hover { transform: translateY(-5px); border-color: rgba(108,123,255,.35); background: var(--card-hover); box-shadow: 0 18px 40px rgba(0,0,0,.35); }
.bent-top { display: flex; align-items: center; justify-content: space-between; }
.bent-tag { font-size: 11px; color: #a9b4ff; border: 1px solid rgba(108,123,255,.3); background: rgba(108,123,255,.1); border-radius: 20px; padding: 2px 10px; }
.bent h3 { margin: 0 0 8px; }
.mini-batch { margin-top: 18px; border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; background: var(--mini-bg); }
.mb-row { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--text-2); margin-bottom: 8px; }
.mb-row > span { flex: none; width: 110px; }
.mb-time { display: block; text-align: right; font-size: 11.5px; color: var(--text-3); }

/* ---------------- 适用人群 ---------------- */
.aud-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 40px; }
.aud h3 { font-size: 17px; }
.aud-note {
  border: 1px solid rgba(251, 191, 36, .28); background: rgba(251, 191, 36, .06);
  border-radius: var(--radius); padding: 18px 22px;
  color: #e8d9b0; font-size: 14px; line-height: 1.8;
}

/* ---------------- 定价 ---------------- */
.plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; align-items: stretch; }
.plan { display: flex; flex-direction: column; padding: 30px 26px; }
.plan h3 { font-size: 16px; margin: 0 0 10px; color: var(--text-2); font-weight: 600; }
.price { display: flex; align-items: baseline; gap: 8px; margin: 0 0 4px; }
.p-num { font-size: 46px; font-weight: 800; background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; font-variant-numeric: tabular-nums; }
.p-unit { font-size: 14px; color: var(--text-2); }
.p-per { display: block; font-size: 12.5px; color: var(--ok); font-weight: 600; }
.p-desc { color: var(--text-3); font-size: 13px; margin: 0 0 18px; }
.p-list { list-style: none; margin: 0 0 24px; padding: 0; display: grid; gap: 8px; flex: 1; }
.p-list li { font-size: 14px; color: var(--text-2); padding-left: 22px; position: relative; }
.p-list li::before { content: "✓"; position: absolute; left: 0; color: var(--ok); font-weight: 700; }
.plan.hot { border-color: rgba(108,123,255,.55); box-shadow: var(--glow); background: linear-gradient(180deg, rgba(108,123,255,.12), rgba(154,92,255,.06)); }
.plan.hot:hover { border-color: rgba(108,123,255,.8); }
.hot-badge { position: absolute; top: -11px; left: 50%; transform: translateX(-50%); background: var(--brand-grad); color: #fff; font-size: 12px; font-weight: 700; padding: 3px 14px; border-radius: 20px; box-shadow: var(--glow); }

/* ---------------- 裂变 ---------------- */
.grow-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 30px; }
.grow-card h3 { font-size: 19px; }
.grow-lead { font-size: 15px; margin-bottom: 18px !important; }
.grow-lead strong { color: var(--text); }
.grow-table, .grow-ladder { display: grid; gap: 8px; }
.grow-table div, .ladder-row { display: flex; justify-content: space-between; align-items: center; background: var(--mini-bg); border: 1px solid var(--line); border-radius: 9px; padding: 10px 14px; font-size: 14px; color: var(--text-2); }
.grow-table b, .ladder-row b { color: var(--text); font-size: 14px; }
.grow-table div:nth-child(1) b { color: #a9b4ff; }
.grow-note { font-size: 12px; color: var(--text-3); margin-top: 12px; }
.ladder-row .l-people { flex: none; width: 62px; color: var(--text); font-weight: 600; }
.ladder-row .l-disc { flex: none; width: 44px; font-weight: 700; color: #a9b4ff; }
.ladder-row.on { border-color: rgba(108,123,255,.5); background: rgba(108,123,255,.08); }
.ladder-row.on .l-disc { color: #fff; }
.grow-cta { text-align: center; color: var(--text-2); font-size: 15px; }
.grow-cta b { color: var(--text); }
.grow-cta .btn { margin-left: 8px; }

/* ---------------- FAQ ---------------- */
.faq-list { max-width: 780px; margin: 0 auto; display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: 12px; background: var(--glass); overflow: hidden; transition: border-color .2s; }
.faq-item[open] { border-color: rgba(108,123,255,.35); }
.faq-item summary {
  list-style: none; cursor: pointer; position: relative;
  padding: 18px 46px 18px 22px; font-size: 15.5px; font-weight: 600;
  display: flex; align-items: center; gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%);
  font-size: 22px; font-weight: 400; color: var(--text-2); transition: transform .25s;
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); color: #a9b4ff; }
.faq-item p { margin: 0; padding: 0 22px 20px; color: var(--text-2); font-size: 14.5px; line-height: 1.85; }

/* ---------------- 最终 CTA ---------------- */
.cta-card {
  position: relative; text-align: center;
  border-radius: 26px; padding: 64px 32px;
  border: 1px solid rgba(108,123,255,.3);
  background: var(--cta-bg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.cta-card::before { content: ""; position: absolute; inset: 0; background: radial-gradient(500px 200px at 50% 110%, rgba(154,92,255,.25), transparent 70%); pointer-events: none; }
.cta-title { font-size: clamp(26px, 3.6vw, 40px); font-weight: 800; margin: 0 0 12px; }
.cta-sub { color: var(--text-2); font-size: 16px; margin: 0 0 34px; }
.cta-steps { display: flex; justify-content: center; gap: 40px; margin-bottom: 38px; }
.cstep { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.cstep span { width: 40px; height: 40px; border-radius: 50%; background: var(--brand-grad); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; box-shadow: var(--glow); }
.cstep p { margin: 0; font-size: 13.5px; color: var(--text-2); line-height: 1.5; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-bottom: 40px; }
.wechat-box {
  max-width: 210px; margin: 0 auto;
  border: 1px solid var(--line-2); border-radius: var(--radius); padding: 18px;
  background: var(--hero-glass);
}
.wechat-box img { width: 132px; height: 132px; border-radius: 8px; display: block; margin: 0 auto 10px; background: #fff; object-fit: contain; }
.wechat-tip { font-size: 14px; font-weight: 600; margin: 0 0 4px; }
.wechat-note { font-size: 12px; color: var(--text-3); margin: 0; }

/* ---------------- 页脚 ---------------- */
.footer { border-top: 1px solid var(--line); padding: 44px 0 calc(36px + env(safe-area-inset-bottom, 0px)); background: var(--footer-bg); }
.footer-inner { display: flex; flex-direction: column; gap: 20px; }
.f-brand { display: flex; align-items: center; gap: 12px; }
.f-name { margin: 0; font-weight: 700; font-size: 15px; }
.f-meta { margin: 2px 0 0; color: var(--text-3); font-size: 12.5px; }
.f-links { display: flex; flex-wrap: wrap; gap: 22px; }
.f-links a { color: var(--text-2); font-size: 14px; }
.f-links a:hover { color: var(--text); }
.f-copy { color: var(--text-3); font-size: 12.5px; margin: 0; }

/* ---------------- 微信弹窗 ---------------- */
.modal { position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center; padding: 24px; opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s; }
.modal.open { opacity: 1; visibility: visible; }
.modal-mask { position: absolute; inset: 0; background: rgba(5, 7, 12, .72); backdrop-filter: blur(6px); }
.modal-card {
  position: relative; width: 100%; max-width: 360px;
  max-height: 86vh; max-height: 86dvh; overflow-y: auto;
  background: var(--modal-bg);
  border: 1px solid var(--line-2); border-radius: var(--radius-lg);
  padding: 32px 26px; text-align: center;
  box-shadow: var(--shadow);
  transform: translateY(18px) scale(.97); transition: transform .25s ease;
}
.modal.open .modal-card { transform: none; }
.modal-close { position: absolute; top: 14px; right: 14px; background: none; border: 0; color: var(--text-3); padding: 6px; border-radius: 8px; }
.modal-close svg { width: 20px; height: 20px; }
.modal-close:hover { color: var(--text); background: var(--card-hover); }
.modal-card h3 { margin: 0 0 18px; font-size: 20px; }
.modal-qr { display: flex; justify-content: center; margin-bottom: 16px; }
.modal-qr img { width: 160px; height: 160px; border-radius: 10px; background: #fff; padding: 4px; object-fit: contain; }
.modal-copy { font-size: 15px; font-weight: 600; margin: 0 0 8px; }
.modal-hint { font-size: 12.5px; color: var(--text-3); margin: 0; }

/* ---------------- 宣传文案库 ---------------- */
.promo-modal-box {
  position: relative; width: 100%; max-width: 620px; max-height: 84vh;
  max-height: 84dvh;
  display: flex; flex-direction: column;
  background: var(--modal-bg); border: 1px solid var(--line-2); border-radius: var(--radius-lg);
  padding: 30px 28px 24px; text-align: center;
  box-shadow: var(--shadow);
  transform: translateY(18px) scale(.97); transition: transform .25s ease;
}
.modal.open .promo-modal-box { transform: none; }
.promo-title { margin: 0 0 6px; font-size: 20px; }
.promo-sub { margin: 0 0 18px; font-size: 13px; color: var(--text-3); line-height: 1.7; }
.promo-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; flex: none; }
.promo-tab {
  font-size: 14px; font-weight: 600; color: var(--text-2);
  background: var(--btn-ghost-bg); border: 1px solid var(--line-2);
  border-radius: 30px; padding: 8px 20px; cursor: pointer; transition: all .2s ease;
}
.promo-tab:hover { color: var(--text); border-color: rgba(108,123,255,.4); }
.promo-tab.active { color: #fff; background: var(--brand-grad); border-color: transparent; box-shadow: var(--glow); }
.promo-panels {
  flex: 1; min-height: 0; overflow-y: auto; text-align: left;
  margin: 18px -6px 0; padding: 0 6px 4px;
}
.promo-panel { display: none; flex-direction: column; gap: 12px; }
.promo-panel.active { display: flex; }
.promo-item {
  border: 1px solid var(--line); border-radius: 12px;
  background: var(--glass); padding: 14px 16px;
  display: flex; flex-direction: column; gap: 10px;
}
.promo-tag {
  align-self: flex-start;
  font-size: 11.5px; color: #a9b4ff; border: 1px solid rgba(108,123,255,.3);
  background: rgba(108,123,255,.1); border-radius: 20px; padding: 2px 10px;
}
.promo-text {
  margin: 0; font-family: inherit; font-size: 14px; line-height: 1.85;
  color: var(--text-2); white-space: pre-wrap; word-break: break-word;
}
.promo-copy {
  align-self: flex-end;
  font-size: 13px; font-weight: 600; color: var(--text);
  background: var(--btn-ghost-bg); border: 1px solid var(--line-2);
  border-radius: 8px; padding: 7px 18px; cursor: pointer; transition: all .2s ease;
}
.promo-copy:hover { border-color: rgba(108,123,255,.4); background: var(--glass-2); }
.promo-copy.copied { color: var(--ok); border-color: rgba(52,211,153,.45); }
.promo-actions { display: flex; justify-content: flex-end; gap: 10px; }
.promo-save {
  font-size: 13px; font-weight: 600; color: var(--text);
  background: var(--btn-ghost-bg); border: 1px solid var(--line-2);
  border-radius: 8px; padding: 7px 18px; cursor: pointer; transition: all .2s ease;
}
.promo-save:hover { border-color: rgba(108,123,255,.4); background: var(--glass-2); }
.promo-save.saved { color: var(--ok); border-color: rgba(52,211,153,.45); }

/* 海报预览（配色跟随日/夜模式） */
.poster {
  position: relative; overflow: hidden; border-radius: 16px;
  aspect-ratio: 4 / 3;
  background: linear-gradient(160deg, #1a1f36, #0c0f1e);
  border: 1px solid var(--line-2);
  padding: 22px 24px;
  display: flex; flex-direction: column;
  text-align: left;
}
.poster::before, .poster::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(46px); pointer-events: none;
}
.poster::before { width: 240px; height: 240px; top: -70px; left: -50px; background: rgba(108,123,255,.4); }
.poster::after { width: 220px; height: 220px; top: -30px; right: -60px; background: rgba(154,92,255,.32); }
.poster-label {
  position: relative; flex: none; display: flex; align-items: center; gap: 9px;
  font-size: 12px; color: #9aa3b5; letter-spacing: .18em;
}
.poster-label::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--brand-grad); box-shadow: 0 0 8px rgba(108,123,255,.6);
}
.poster-slogan {
  position: relative; flex: 1; display: flex; align-items: center; justify-content: center; margin: 0;
  font-size: clamp(26px, 5vw, 44px); font-weight: 800; line-height: 1.25; letter-spacing: .02em;
  text-align: center; max-width: 86%;
  background: linear-gradient(135deg, #9aabff, #c9a0ff);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.poster-bottom {
  position: relative; flex: none; display: flex; justify-content: flex-end; align-items: center; gap: 12px;
}
.poster-bottom img {
  width: 84px; height: 84px; border-radius: 10px; background: #fff; padding: 5px; object-fit: contain;
}
.poster-bottom p { margin: 0; font-size: 12px; color: #c9cfff; text-align: right; line-height: 1.5; }
.poster-foot { position: relative; flex: none; margin-top: 12px; font-size: 10.5px; color: #6b7488; letter-spacing: .08em; }

/* 浅色模式海报 */
html[data-theme="light"] .poster {
  background: linear-gradient(160deg, #ffffff, #eef1f9);
  border-color: rgba(20, 24, 37, .12);
}
html[data-theme="light"] .poster::before { background: rgba(108,123,255,.10); }
html[data-theme="light"] .poster::after { background: rgba(154,92,255,.08); }
html[data-theme="light"] .poster-label { color: #6b7488; }
html[data-theme="light"] .poster-slogan { background-image: linear-gradient(135deg, #3a48c8, #7a4dd8); }
html[data-theme="light"] .poster-bottom img { border: 1px solid rgba(20,24,37,.12); }
html[data-theme="light"] .poster-bottom p { color: #565e75; }
html[data-theme="light"] .poster-foot { color: #6b7488; }
.promo-hint { margin: 16px 0 0; font-size: 12px; color: var(--text-3); text-align: left; line-height: 1.7; }

/* ---------------- 返回顶部 ---------------- */
.to-top {
  position: fixed; right: 22px; bottom: calc(22px + env(safe-area-inset-bottom, 0px)); z-index: 90;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--to-top-bg); border: 1px solid var(--line-2); color: var(--text-2);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: .25s ease; box-shadow: var(--shadow);
}
.to-top.show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { color: #fff; border-color: rgba(108,123,255,.5); }
.to-top svg { width: 18px; height: 18px; }

/* ---------------- 滚动渐显 ---------------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------------- 响应式 ---------------- */
@media (max-width: 1024px) {
  .showcase-visual { max-width: 720px; margin: 48px auto 0; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .chip-1 { right: 6px; } .chip-2 { left: -6px; } .chip-3 { right: 12px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .aud-grid { grid-template-columns: repeat(2, 1fr); }
  .plans { grid-template-columns: repeat(2, 1fr); gap: 26px 18px; }
  .bent { grid-column: span 6; }
  .bent.cell-lg { grid-column: span 12; }
  .grow-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 68px 0; }
  .nav-links {
    position: fixed; top: calc(64px + env(safe-area-inset-top, 0px)); left: 0; right: 0;
    flex-direction: column; gap: 0; background: var(--nav-bg-mobile);
    border-bottom: 1px solid var(--line);
    padding: 8px 24px 16px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .nav-links a:last-child { border-bottom: 0; }
  .nav-burger { display: inline-flex; }
  .nav-cta .btn { display: none; }
  .brand-tag { display: none; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); gap: 28px 12px; }
  .hero { min-height: 100vh; padding: 108px 0 72px; }
  .hero-title { font-size: clamp(44px, 12vw, 72px); }
  .hero-actions .btn { width: 100%; }
  .values-grid { grid-template-columns: 1fr; }
  .value p { max-width: none; }
  .shot-tabs { flex-wrap: nowrap; justify-content: flex-start; overflow-x: auto; padding-bottom: 6px; -webkit-overflow-scrolling: touch; }
  .st-tab { flex: none; }
  .cards { grid-template-columns: 1fr; }
  .aud-grid { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .bent { grid-column: span 12; }
  .bent.cell-lg { grid-column: span 12; }
  .cta-steps { gap: 18px; }
  .cta-actions .btn { width: 100%; }
  .promo-copy, .promo-save { padding: 10px 20px; }
  .promo-tab { padding: 10px 22px; }
  .float-chip { font-size: 11px; padding: 6px 11px; }
  .chip-2 { display: none; }
}

/* 矮屏 / 横屏隐藏下滑引导 */
@media (max-height: 640px) { .scroll-cue { display: none; } }