/* ============================================================
   趣万词 · 宣传站主样式 (v1.0.14)
   主色: 森林青绿 #5EAEA1
   辅色: PK红 #FF6B4A / 战队深绿 #2C7268 / 句子蓝 #4A90E2
         会员紫 #7C5BC8 / 强调橙 #E9A23B / 合伙人橙 #C77F1E
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: #1A2530;
  background: #F7F8FA;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }

:root {
  --brand: #5EAEA1;
  --brand-deep: #3F8E84;
  --brand-soft: #E9F4F0;
  --accent: #E9A23B;
  --accent-deep: #C77F1E;
  --bg: #F7F8FA;
  --card: #ffffff;
  --ink: #1A2530;
  --ink-2: #4B5563;
  --ink-3: #6B7280;
  --ink-4: #9CA3AF;
  --line: #E5E8EC;
  --line-2: #EEF1F5;
  --shadow-sm: 0 2px 8px rgba(31, 40, 55, 0.05);
  --shadow-md: 0 6px 18px rgba(31, 40, 55, 0.06);
  --shadow-lg: 0 18px 48px rgba(31, 40, 55, 0.08);
  --shadow-xl: 0 24px 64px rgba(31, 40, 55, 0.12);

  --c-pk: #FF6B4A;
  --c-pk-bg: #FFEAE4;
  --c-team: #2C7268;
  --c-team-bg: #E0EEEC;
  --c-sentence: #4A90E2;
  --c-sentence-bg: #E5F0FB;
  --c-member: #7C5BC8;
  --c-member-bg: #F0E9F8;
  --c-partner: #C77F1E;
  --c-partner-bg: #FFF1DC;

  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 28px;
  --radius-xl: 36px;
  --container: 1200px;
}

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; width: 100%; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  border-radius: 999px;
  border: 0;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
  user-select: none;
}
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-lg { padding: 16px 28px; font-size: 16px; }
.btn-block { display: flex; width: 100%; }

.btn-primary {
  background: linear-gradient(135deg, #5EAEA1, #3F8E84);
  color: #fff;
  box-shadow: 0 10px 24px rgba(94, 174, 161, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(94, 174, 161, 0.45); }
.btn-primary:active { transform: translateY(0); }

.btn-ghost { background: #fff; color: var(--brand-deep); border: 2px solid var(--brand); }
.btn-ghost:hover { background: var(--brand-soft); transform: translateY(-2px); }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(247, 248, 250, 0.85);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--line-2);
  box-shadow: 0 4px 16px rgba(31, 40, 55, 0.04);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--ink); }
.brand-mark { display: inline-flex; align-items: center; justify-content: center; filter: drop-shadow(0 4px 8px rgba(94, 174, 161, 0.25)); }
.brand-name { font-size: 20px; letter-spacing: 0.5px; }
.nav-links { display: flex; align-items: center; gap: 22px; flex: 1; justify-content: center; }
.nav-links a { font-size: 14px; color: var(--ink-2); font-weight: 500; position: relative; padding: 4px 0; transition: color .2s ease; }
.nav-links a::after { content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 2px; background: var(--brand); border-radius: 2px; transition: width .25s ease; }
.nav-links a:hover { color: var(--brand-deep); }
.nav-links a:hover::after { width: 100%; }
.nav-cta { flex-shrink: 0; }
.nav-burger { display: none; width: 40px; height: 40px; background: transparent; border: 0; padding: 0; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.nav-burger span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .25s ease, opacity .2s ease; }
.nav-burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.is-open span:nth-child(2) { opacity: 0; }
.nav-burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   Hero
   ============================================================ */
.hero { position: relative; padding: 130px 0 70px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.blob { position: absolute; border-radius: 50%; filter: blur(40px); opacity: 0.5; }
.blob-1 { width: 480px; height: 480px; background: radial-gradient(circle, rgba(94, 174, 161, 0.45), transparent 70%); top: -120px; right: -120px; animation: float 14s ease-in-out infinite; }
.blob-2 { width: 360px; height: 360px; background: radial-gradient(circle, rgba(255, 107, 74, 0.30), transparent 70%); top: 200px; left: -80px; animation: float 16s ease-in-out infinite reverse; }
.blob-3 { width: 280px; height: 280px; background: radial-gradient(circle, rgba(94, 174, 161, 0.30), transparent 70%); bottom: -40px; left: 30%; animation: float 18s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(20px, -30px); } }
.dot { position: absolute; border-radius: 50%; background: var(--accent); opacity: 0.4; }
.dot-1 { width: 12px; height: 12px; top: 180px; right: 28%; animation: float 8s ease-in-out infinite; }
.dot-2 { width: 8px; height: 8px; top: 240px; right: 22%; animation: float 10s ease-in-out infinite reverse; }
.dot-3 { width: 6px; height: 6px; top: 120px; right: 38%; background: var(--brand); animation: float 7s ease-in-out infinite; }

.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.hero-copy { max-width: 580px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; background: #fff; border: 1px solid var(--line-2);
  border-radius: 999px; font-size: 13px; font-weight: 500;
  color: var(--ink-2); box-shadow: var(--shadow-sm);
}
.eyebrow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 4px rgba(94, 174, 161, 0.18); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 4px rgba(94, 174, 161, 0.18); } 50% { box-shadow: 0 0 0 8px rgba(94, 174, 161, 0.0); } }
.hero-title { font-size: clamp(38px, 5.2vw, 64px); line-height: 1.18; font-weight: 800; margin: 22px 0 0; letter-spacing: -0.5px; color: var(--ink); }
.title-accent {
  background: linear-gradient(135deg, var(--brand) 0%, var(--c-pk) 60%, var(--c-sentence) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  position: relative;
}
.title-accent::after { content: ''; position: absolute; left: 0; bottom: 4px; width: 100%; height: 8px; background: var(--accent); opacity: 0.35; border-radius: 4px; z-index: -1; }
.hero-sub { margin: 22px 0 0; font-size: 18px; color: var(--ink-3); line-height: 1.7; }
.hero-sub-break { display: none; }
.hero-cta { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-meta { margin-top: 44px; display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.meta-item { display: flex; flex-direction: column; align-items: flex-start; }
.meta-num { font-size: 28px; font-weight: 800; color: var(--ink); line-height: 1; }
.meta-stars { margin-top: 2px; color: var(--accent); font-size: 14px; letter-spacing: 1px; }
.meta-label { margin-top: 6px; font-size: 13px; color: var(--ink-3); }
.meta-divider { width: 1px; height: 36px; background: var(--line); }

.hero-art { position: relative; display: flex; justify-content: center; align-items: center; }
.owl-scene { width: 100%; max-width: 520px; height: auto; animation: floatY 6s ease-in-out infinite; }
@keyframes floatY { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ============================================================
   Stats
   ============================================================ */
.stats { padding: 30px 0 70px; }
.stats-grid { background: #fff; border-radius: var(--radius-lg); padding: 36px 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; box-shadow: var(--shadow-md); }
.stats-grid-6 { grid-template-columns: repeat(6, 1fr); padding: 28px 16px; gap: 12px; }
.stat-item { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.stat-num { font-size: 44px; font-weight: 800; color: var(--brand-deep); line-height: 1; font-variant-numeric: tabular-nums; }
.stats-grid-6 .stat-num { font-size: 34px; }
.stat-suffix { font-size: 16px; font-weight: 700; color: var(--brand-deep); margin-left: 4px; margin-top: 6px; display: inline-block; }
.stats-grid-6 .stat-suffix { font-size: 13px; margin-top: 4px; }
.stat-item .stat-label { margin-top: 6px; font-size: 13px; color: var(--ink-3); }
.stats-grid-6 .stat-label { font-size: 12px; }

/* ============================================================
   Section common
   ============================================================ */
section { scroll-margin-top: 96px; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-tag { display: inline-block; padding: 6px 14px; background: var(--brand-soft); color: var(--brand-deep); font-size: 13px; font-weight: 600; border-radius: 999px; letter-spacing: 0.5px; }
.section-title { font-size: clamp(28px, 3.4vw, 42px); line-height: 1.25; font-weight: 800; margin: 16px 0 0; letter-spacing: -0.3px; color: var(--ink); }
.section-desc { margin: 14px auto 0; font-size: 16px; color: var(--ink-3); line-height: 1.7; max-width: 600px; }

/* ============================================================
   Features (6 卡)
   ============================================================ */
.features { padding: 70px 0; }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.features-grid-6 { grid-template-columns: repeat(3, 1fr); }
.feature-card { position: relative; background: #fff; border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease; border: 1px solid var(--line-2); overflow: hidden; }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-icon { width: 56px; height: 56px; border-radius: 18px; display: flex; align-items: center; justify-content: center; background: var(--icon-bg, var(--brand-soft)); color: var(--icon-color, var(--brand-deep)); margin-bottom: 18px; }
.feature-card h3 { font-size: 19px; font-weight: 800; margin: 0 0 8px; color: var(--ink); }
.feature-card p { font-size: 13px; color: var(--ink-3); line-height: 1.65; margin: 0; }
.badge-new {
  position: absolute; top: 16px; right: 16px;
  padding: 3px 10px; background: var(--c-pk); color: #fff;
  font-size: 10px; font-weight: 800; border-radius: 999px;
  letter-spacing: 0.5px; box-shadow: 0 4px 10px rgba(255, 107, 74, 0.30);
}

/* ============================================================
   Matrix 产品矩阵 (新增)
   ============================================================ */
.matrix { padding: 70px 0; background: #fff; }
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.matrix-card {
  position: relative;
  display: block;
  padding: 24px 20px;
  background: #F7F8FA;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  transition: transform .25s ease, box-shadow .25s ease, background .2s ease;
  overflow: hidden;
}
.matrix-card::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--card-color, var(--brand));
  border-radius: 4px 0 0 4px;
}
.matrix-card:hover {
  transform: translateY(-4px);
  background: #fff;
  box-shadow: 0 12px 28px rgba(31, 40, 55, 0.08);
  border-color: var(--card-color, var(--brand));
}
.matrix-icon {
  width: 44px; height: 44px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--card-color, var(--brand)) 12%, white);
  color: var(--card-color, var(--brand));
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 14px;
}
.matrix-card h4 { font-size: 16px; font-weight: 800; margin: 0 0 6px; color: var(--ink); }
.matrix-card p { font-size: 12px; color: var(--ink-3); line-height: 1.6; margin: 0; }

/* ============================================================
   PK 对战 (新增)
   ============================================================ */
.pk { padding: 80px 0; background: linear-gradient(180deg, #F7F8FA 0%, #fff 100%); }
.pk-wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }
.pk-copy .section-tag { background: var(--c-pk-bg); color: var(--c-pk); }
.pk-features { list-style: none; margin: 28px 0 32px; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.pk-features li { display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: #fff; border-radius: 14px; box-shadow: var(--shadow-sm); }
.pk-features li strong { color: var(--ink); font-size: 15px; font-weight: 800; }
.pk-features li span { color: var(--ink-3); font-size: 13px; }
.pk-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.pk-art { max-width: 380px; margin: 0 auto; width: 100%; filter: drop-shadow(0 24px 48px rgba(199, 61, 31, 0.25)); }

/* ============================================================
   Method
   ============================================================ */
.method { padding: 70px 0; background: #F7F8FA; }
.method-head { text-align: center; max-width: 720px; margin: 0 auto 50px; }
.method-steps { display: flex; flex-direction: column; gap: 20px; max-width: 980px; margin: 0 auto; }
.step-item { display: grid; grid-template-columns: 88px 1fr 280px; gap: 28px; align-items: center; background: #fff; border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow-md); border: 1px solid var(--line-2); transition: transform .25s ease, box-shadow .25s ease; }
.step-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.step-num { font-size: 52px; font-weight: 800; background: linear-gradient(135deg, var(--brand), var(--brand-deep)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; font-variant-numeric: tabular-nums; }
.step-body h3 { font-size: 24px; font-weight: 800; margin: 0 0 6px; color: var(--ink); }
.step-body p { font-size: 14px; color: var(--ink-3); line-height: 1.7; margin: 0 0 12px; }
.step-tags { list-style: none; margin: 0; padding: 0; display: flex; gap: 6px; flex-wrap: wrap; }
.step-tags li { padding: 4px 12px; background: var(--brand-soft); color: var(--brand-deep); font-size: 12px; font-weight: 600; border-radius: 999px; }
.step-art { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); }

/* ============================================================
   Screens 产品预览
   ============================================================ */
.screens { padding: 70px 0; background: #fff; }
.phones-wrap { position: relative; display: flex; align-items: center; gap: 16px; }
.phones-track { flex: 1; display: flex; gap: 24px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth; padding: 24px 4px 32px; scrollbar-width: thin; scrollbar-color: var(--brand) transparent; -ms-overflow-style: none; }
.phones-track::-webkit-scrollbar { height: 6px; }
.phones-track::-webkit-scrollbar-thumb { background: var(--brand); border-radius: 3px; }
.phones-track::-webkit-scrollbar-track { background: transparent; }
.phone { flex: 0 0 260px; scroll-snap-align: center; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.phone-frame { width: 260px; height: 540px; background: #1A2530; border-radius: 36px; padding: 10px; box-shadow: 0 20px 48px rgba(31, 40, 55, 0.20), 0 0 0 2px rgba(255,255,255,0.04) inset; position: relative; }
.phone-frame::before { content: ''; position: absolute; top: 16px; left: 50%; transform: translateX(-50%); width: 72px; height: 20px; background: #1A2530; border-radius: 999px; z-index: 2; }
.phone-screen { width: 100%; height: 100%; background: #F7F8FA; border-radius: 28px; overflow: hidden; position: relative; }
.phone-statusbar { padding: 12px 16px 0; font-size: 11px; font-weight: 700; color: #1A2530; display: flex; justify-content: space-between; align-items: center; }
.phone-content { padding: 0 14px 18px; height: calc(100% - 22px); overflow: hidden; }
.phone-label { font-size: 13px; font-weight: 700; color: var(--ink-2); letter-spacing: 0.3px; }
.phone-arrow { flex-shrink: 0; width: 44px; height: 44px; border-radius: 50%; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-md); color: var(--ink); display: flex; align-items: center; justify-content: center; transition: background .2s ease, transform .2s ease; z-index: 2; }
.phone-arrow:hover { background: var(--brand); color: #fff; transform: scale(1.06); }
.phone-arrow:disabled { opacity: 0.4; cursor: not-allowed; }
.phones-dots { display: flex; gap: 8px; justify-content: center; margin-top: 12px; }
.phones-dots .dot-item { width: 8px; height: 8px; border-radius: 50%; background: var(--line); transition: background .2s ease, width .2s ease; border: 0; padding: 0; }
.phones-dots .dot-item.is-active { background: var(--brand); width: 24px; border-radius: 4px; }

/* ============================================================
   Member 会员 (新增)
   ============================================================ */
.member { padding: 80px 0; background: linear-gradient(180deg, #fff 0%, #F5F0FB 100%); }
.member-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 56px; }
.member-benefit { background: #fff; border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); border: 1px solid var(--line-2); transition: transform .25s ease, box-shadow .25s ease; }
.member-benefit:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.mb-icon { width: 48px; height: 48px; border-radius: 14px; display: inline-flex; align-items: center; justify-content: center; font-size: 22px; margin-bottom: 14px; }
.member-benefit h4 { font-size: 18px; font-weight: 800; margin: 0 0 6px; color: var(--ink); }
.member-benefit p { font-size: 13px; color: var(--ink-3); line-height: 1.6; margin: 0; }

.member-plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.plan-card { position: relative; background: #fff; border-radius: var(--radius-lg); padding: 32px 28px; box-shadow: var(--shadow-md); border: 1px solid var(--line-2); display: flex; flex-direction: column; text-align: center; }
.plan-card-featured { border-color: var(--c-member); box-shadow: 0 24px 64px rgba(124, 91, 200, 0.18); transform: scale(1.04); z-index: 1; }
.plan-tag { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: linear-gradient(135deg, #7C5BC8, #5A3FA0); color: #fff; padding: 4px 14px; border-radius: 999px; font-size: 11px; font-weight: 800; letter-spacing: 0.5px; box-shadow: 0 4px 12px rgba(124, 91, 200, 0.30); }
.plan-name { font-size: 16px; font-weight: 700; color: var(--ink-2); margin-bottom: 14px; }
.plan-price { display: flex; align-items: baseline; justify-content: center; gap: 6px; margin-bottom: 6px; }
.price-num { font-size: 44px; font-weight: 800; color: var(--ink); line-height: 1; }
.plan-card-featured .price-num { color: var(--c-member); }
.price-unit { font-size: 14px; color: var(--ink-3); }
.plan-save { font-size: 12px; color: var(--c-pk); font-weight: 700; margin-bottom: 18px; }
.plan-features { list-style: none; margin: 0 0 24px; padding: 0; flex: 1; text-align: left; }
.plan-features li { padding: 6px 0; font-size: 13px; color: var(--ink-2); display: flex; align-items: center; gap: 8px; }
.plan-features li::before { content: '✓'; color: var(--c-member); font-weight: 800; }

/* ============================================================
   Download
   ============================================================ */
.download { padding: 70px 0 100px; }
.download-card { position: relative; background: linear-gradient(135deg, #5EAEA1 0%, #3F8E84 50%, #2C7268 100%); border-radius: var(--radius-xl); padding: 64px 56px; overflow: hidden; box-shadow: 0 30px 80px rgba(94, 174, 161, 0.30); }
.download-bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.dblob { position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.35; }
.dblob-1 { width: 360px; height: 360px; background: #E9A23B; top: -120px; right: -100px; }
.dblob-2 { width: 280px; height: 280px; background: #7DC1B5; bottom: -100px; left: 10%; }
.download-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.download-copy .section-tag { background: rgba(255, 255, 255, 0.18); color: #fff; backdrop-filter: blur(8px); }
.download-copy .section-title { color: #fff; font-size: clamp(28px, 3.4vw, 42px); }
.download-buttons { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }
.dbtn { display: inline-flex; align-items: center; gap: 12px; padding: 16px 24px; background: #1A2530; color: #fff; border-radius: 16px; transition: transform .2s ease, background .2s ease; min-width: 200px; }
.dbtn:hover { transform: translateY(-2px); background: #000; }
.dbtn-disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; box-shadow: none; }
.dbtn-disabled:hover { transform: none; background: #1A2530; }
.dbtn-mini { font-size: 11px; color: rgba(255, 255, 255, 0.7); text-transform: uppercase; letter-spacing: 1px; line-height: 1.2; }
.dbtn-main { font-size: 16px; font-weight: 800; line-height: 1.2; margin-top: 2px; }
.download-version { margin-top: 18px; font-size: 13px; color: rgba(255, 255, 255, 0.7); }
.download-qr { display: flex; justify-content: center; }
.qr-card { background: #fff; border-radius: var(--radius); padding: 20px; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15); text-align: center; }
.qr-frame { width: 200px; height: 200px; border-radius: 12px; overflow: hidden; position: relative; }
.qr-img { display: block; width: 200px; height: 200px; }
.qr-logo-overlay { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 36px; height: 36px; background: #fff; border-radius: 8px; padding: 0; display: flex; align-items: center; justify-content: center; box-shadow: 0 0 0 4px #fff; }
.qr-tip { margin-top: 14px; font-size: 13px; color: var(--ink-2); font-weight: 600; }

/* ============================================================
   FAQ
   ============================================================ */
.faq { padding: 70px 0; background: #fff; }
.faq-wrap { max-width: 820px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: #F7F8FA; border-radius: 18px; border: 1px solid var(--line-2); transition: background .2s ease, border-color .2s ease; }
.faq-item[open] { background: #fff; border-color: var(--brand); box-shadow: var(--shadow-md); }
.faq-item summary { list-style: none; cursor: pointer; padding: 18px 22px; display: flex; align-items: center; justify-content: space-between; gap: 16px; font-size: 15px; font-weight: 700; color: var(--ink); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-arrow { color: var(--brand); flex-shrink: 0; transition: transform .25s ease; }
.faq-item[open] .faq-arrow { transform: rotate(180deg); }
.faq-body { padding: 0 22px 20px; color: var(--ink-3); font-size: 14px; line-height: 1.75; }

/* ============================================================
   Final CTA
   ============================================================ */
.final-cta { padding: 70px 0; background: linear-gradient(180deg, #F7F8FA 0%, #E9F4F0 100%); text-align: center; }
.final-wrap { max-width: 720px; margin: 0 auto; }
.final-wrap h2 { font-size: clamp(28px, 3.2vw, 40px); font-weight: 800; margin: 0; color: var(--ink); letter-spacing: -0.3px; }
.final-wrap p { margin: 16px 0 30px; color: var(--ink-3); font-size: 17px; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: #1A2530; color: rgba(255, 255, 255, 0.7); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-col h4 { font-size: 14px; font-weight: 700; color: #fff; margin: 0 0 18px; letter-spacing: 0.5px; }
.footer-col a { display: block; font-size: 14px; color: rgba(255, 255, 255, 0.6); padding: 6px 0; transition: color .2s ease; }
.footer-col a:hover { color: #fff; }
.brand--footer .brand-name { color: #fff; }
.footer-tagline { margin: 14px 0 0; font-size: 14px; color: rgba(255, 255, 255, 0.5); line-height: 1.7; max-width: 280px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 20px 0; }
.footer-bottom-wrap { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; font-size: 12px; color: rgba(255, 255, 255, 0.4); }
.footer-bottom-cols { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.footer-icp-item { font-size: 12px; color: rgba(255, 255, 255, 0.55); display: inline-flex; align-items: center; gap: 4px; }
.footer-link { display: inline-flex; align-items: center; gap: 5px; color: rgba(255, 255, 255, 0.55); transition: color .2s ease; }
.footer-link:hover { color: #fff; }
.footer-beian-icon { width: 14px; height: 14px; display: inline-block; filter: invert(1); opacity: .75; }
.footer-bottom-extra { display: flex; flex-wrap: wrap; gap: 10px; font-size: 12px; color: rgba(255, 255, 255, 0.4); }
.footer-bottom-extra span:nth-child(even) { color: rgba(255, 255, 255, 0.25); }

/* ============================================================
   Features 8 卡
   ============================================================ */
.features-grid-8 { grid-template-columns: repeat(4, 1fr); }

/* ============================================================
   趣玩玩法卡片
   ============================================================ */
.play-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 56px;
}
.play-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px 20px;
  border: 1px solid var(--line-2);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: transform .25s ease, box-shadow .25s ease;
}
.play-card::before {
  content: '';
  position: absolute; left: 0; top: 0; right: 0; height: 4px;
  background: var(--play-color, var(--brand));
}
.play-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.play-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.play-icon {
  width: 42px; height: 42px;
  border-radius: 13px;
  background: var(--play-bg, var(--brand-soft));
  color: var(--play-color, var(--brand-deep));
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 19px; font-weight: 800;
}
.play-kind {
  font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: 999px;
  background: var(--play-bg, var(--brand-soft));
  color: var(--play-color, var(--brand-deep));
}
.play-card h4 { font-size: 17px; font-weight: 800; margin: 0 0 6px; color: var(--ink); }
.play-card p { font-size: 12.5px; color: var(--ink-3); line-height: 1.6; margin: 0; }

/* ============================================================
   劲词团
   ============================================================ */
.team { padding: 80px 0; background: #fff; }
.team-wrap { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: center; }
.team-art { max-width: 380px; width: 100%; margin: 0 auto; filter: drop-shadow(0 24px 48px rgba(44, 114, 104, 0.25)); }
.team-copy .section-tag { background: #E0EEEC; color: #2C7268; }
.team-features { list-style: none; margin: 28px 0 32px; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.team-features li { display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: #F7F8FA; border-radius: 14px; }
.team-features li strong { color: var(--ink); font-size: 15px; font-weight: 800; }
.team-features li span { color: var(--ink-3); font-size: 13px; }
.team-dot { width: 10px; height: 10px; border-radius: 50%; background: #2C7268; flex-shrink: 0; }
.team-btn { background: linear-gradient(135deg, #2C7268, #1A4A44); box-shadow: 0 10px 24px rgba(44, 114, 104, 0.35); }
.team-btn:hover { box-shadow: 0 14px 28px rgba(44, 114, 104, 0.45); }

/* ============================================================
   会员 4 档
   ============================================================ */
.member-plans-4 { grid-template-columns: repeat(4, 1fr); }
.plan-card-premium { border-color: var(--accent); box-shadow: 0 20px 48px rgba(233, 162, 59, 0.16); }
.plan-tag-gold { background: linear-gradient(135deg, #E9A23B, #C77F1E); box-shadow: 0 4px 12px rgba(233, 162, 59, 0.30); }
.plan-card-premium .plan-features li::before { color: var(--accent-deep); }

/* ============================================================
   合伙人
   ============================================================ */
.partner { padding: 80px 0; background: linear-gradient(180deg, #F7F8FA 0%, #FFF8EC 100%); }
.partner-tag { background: #FFF1DC; color: #C77F1E; }
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.partner-card {
  background: #fff; border-radius: var(--radius);
  padding: 28px 22px; border: 1px solid var(--line-2);
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}
.partner-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.partner-num {
  font-size: 32px; font-weight: 800; line-height: 1;
  background: linear-gradient(135deg, #E9A23B, #C77F1E);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 14px;
}
.partner-card h4 { font-size: 17px; font-weight: 800; margin: 0 0 8px; color: var(--ink); }
.partner-card p { font-size: 13px; color: var(--ink-3); line-height: 1.65; margin: 0; }
.partner-cta { text-align: center; margin-top: 44px; }


/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .hero { padding: 110px 0 50px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-art { order: -1; max-width: 360px; margin: 0 auto; }
  .features-grid-6 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid-6 { grid-template-columns: repeat(3, 1fr); }
  .matrix-grid { grid-template-columns: repeat(2, 1fr); }
  .member-grid { grid-template-columns: repeat(2, 1fr); }
  .member-plans { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto; }
  .plan-card-featured { transform: scale(1.02); }
  .pk-wrap { grid-template-columns: 1fr; gap: 36px; }
  .download-card { padding: 48px 32px; }
  .download-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .download-buttons { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { position: fixed; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 24px; gap: 12px; border-bottom: 1px solid var(--line-2); box-shadow: var(--shadow-md); transform: translateY(-110%); transition: transform .3s ease; align-items: stretch; max-height: calc(100vh - 72px); overflow-y: auto; }
  .nav-links.is-open { transform: translateY(0); }
  .nav-links a { padding: 12px 0; text-align: center; border-bottom: 1px solid var(--line-2); font-size: 16px; }
  .nav-cta { display: none; }
  .nav-burger { display: flex; }

  .hero { padding: 96px 0 32px; }
  .hero-sub-break { display: inline; }
  .hero-cta .btn { flex: 1; min-width: 0; }
  .hero-cta { gap: 10px; }
  .hero-cta .btn-lg { padding: 14px 18px; font-size: 15px; }
  .hero-meta { gap: 14px; margin-top: 28px; }
  .meta-num { font-size: 22px; }
  .meta-divider { display: none; }

  .stats { padding: 20px 0 50px; }
  .stats-grid-6 { padding: 24px 12px; gap: 16px 8px; }
  .stats-grid-6 .stat-num { font-size: 28px; }
  .stats-grid-6 .stat-suffix { font-size: 11px; }

  .features, .matrix, .pk, .method, .screens, .member, .download, .faq, .final-cta { padding: 56px 0; }
  .download { padding-bottom: 72px; }
  .features-grid-6 { grid-template-columns: 1fr; }
  .matrix-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .matrix-card { padding: 18px 14px; }
  .matrix-card h4 { font-size: 14px; }
  .matrix-card p { font-size: 11px; }
  .matrix-icon { width: 36px; height: 36px; }
  .member-grid { grid-template-columns: 1fr 1fr; }

  .step-item { grid-template-columns: 1fr; gap: 14px; padding: 22px; }
  .step-num { font-size: 38px; }
  .step-art { order: -1; max-width: 280px; margin: 0 auto; }

  .phone-arrow { display: none; }
  .phones-track { padding-left: 24px; padding-right: 24px; -webkit-overflow-scrolling: touch; }
  .phone { flex: 0 0 78vw; max-width: 320px; }
  .phone-frame { width: 100%; }

  .download-card { padding: 36px 24px; border-radius: 24px; }
  .dbtn { flex: 1; min-width: 0; padding: 14px 18px; }
  .qr-frame { width: 180px; height: 180px; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
  .footer-bottom-wrap { flex-direction: column; align-items: center; text-align: center; }
  .footer-bottom-cols { justify-content: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .hero-title { font-size: 36px; }
  .section-title { font-size: 24px; }
  .nav-wrap { height: 64px; }
  .brand-name { font-size: 18px; }
  .matrix-grid { grid-template-columns: 1fr; }
  .member-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Animations
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}