/* ============================================================
   芯思考 GEO 落地页 — 手写样式（移动优先，断点 640/768/1024）
   ============================================================ */
:root {
  --navy-950: #060D24;
  --navy-900: #0B1B3F;
  --navy-700: #16305E;
  --blue-600: #1E6BFF;
  --blue-500: #2563EB;
  --blue-400: #4C8DFF;
  --blue-100: #DBEAFE;
  --ice-50: #EFF5FF;
  --amber-400: #FBBF24;
  --green-500: #22C55E;
  --red-500: #EF4444;
  --slate-500: #64748B;
  --slate-400: #94A3B8;
  --slate-300: #CBD5E1;
  --slate-200: #E2E8F0;
  --slate-100: #F1F5F9;
  --shadow-card: 0 8px 30px rgba(11, 27, 63, 0.08);
  --shadow-card-hover: 0 16px 44px rgba(11, 27, 63, 0.14);
  --shadow-blue: 0 8px 30px rgba(30, 107, 255, 0.45);
  --font-cn: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', sans-serif;
  --font-num: 'Space Grotesk', 'Noto Sans SC', 'PingFang SC', sans-serif;
}

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

html, body { overflow-x: hidden; }
@supports (overflow: clip) {
  html, body { overflow-x: clip; }
}

html { scroll-behavior: smooth; }
section[id], footer { scroll-margin-top: 72px; }

body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  color: var(--navy-900);
  background: var(--navy-950);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; background: none; border: none; color: inherit; }

.container { max-width: 72rem; margin: 0 auto; padding-left: 20px; padding-right: 20px; }
.mt-5 { margin-top: 20px; }
.mt-14 { margin-top: 56px; }
.mt-16 { margin-top: 64px; }
.text-white { color: #fff; }
.text-blue { color: var(--blue-600); }
.text-blue-400 { color: var(--blue-400); }
.ic-red { color: var(--red-500); flex-shrink: 0; }
.ic-green { color: var(--green-500); flex-shrink: 0; }

/* ---------- 标题阶梯 ---------- */
h1, h2, h3 { line-height: 1.2; }
h2 { font-size: 1.875rem; font-weight: 900; letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; font-weight: 700; }
@media (min-width: 768px) {
  h2 { font-size: 3rem; }
  h3 { font-size: 1.5rem; }
}

/* ---------- 段落标签 ---------- */
.tag {
  display: inline-flex; align-items: center;
  padding: 6px 16px; border-radius: 999px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.2em;
  background: var(--blue-100); color: var(--blue-600);
}
.tag-dark { background: rgba(30, 107, 255, 0.15); color: var(--blue-400); box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.3); }
.tag-glass { background: rgba(255, 255, 255, 0.1); color: #fff; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 999px; font-weight: 700; text-align: center;
  transition: transform 0.3s, background 0.3s, box-shadow 0.3s, border-color 0.3s, color 0.3s;
}
.btn-primary { background: var(--blue-600); color: #fff; box-shadow: var(--shadow-blue); }
.btn-primary:hover { background: var(--blue-500); transform: scale(1.05); }
.btn-ghost { border: 1px solid rgba(255, 255, 255, 0.25); color: #fff; }
.btn-ghost:hover { border-color: var(--blue-500); color: var(--blue-400); }
.btn-outline { border: 2px solid var(--slate-200); color: var(--navy-900); }
.btn-outline:hover { border-color: var(--slate-300); background: #F8FAFC; }
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-xl { padding: 16px 32px; font-size: 18px; font-weight: 900; }
.btn-block { width: 100%; padding: 14px 24px; font-size: 16px; }

/* ---------- 段落骨架（深浅交替） ---------- */
.section { padding: 80px 0; }
@media (min-width: 768px) { .section { padding: 112px 0; } }
.section-ice { background: var(--ice-50); color: var(--navy-900); }
.section-white { background: #fff; color: var(--navy-900); }
.section-navy900 { background: var(--navy-900); color: #fff; }
.section-navy950 { background: var(--navy-950); color: #fff; }

.section-head { max-width: 55rem; margin: 0 auto; text-align: center; }
.section-head h2 { margin-top: 20px; }
.lead { margin-top: 24px; font-size: 16px; line-height: 1.75; color: var(--slate-500); }
.lead-dark { margin-top: 24px; font-size: 16px; line-height: 1.75; color: var(--slate-300); max-width: 28rem; }
@media (min-width: 768px) { .lead, .lead-dark { font-size: 18px; } }

.grid { display: grid; gap: 20px; }
@media (min-width: 768px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

/* ---------- 通用卡片 ---------- */
.card {
  background: #fff; border-radius: 16px; padding: 28px;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.card-ice { background: var(--ice-50); box-shadow: none; }
.card-ice:hover { box-shadow: var(--shadow-card); }
.card-title { margin-top: 20px; }
.card-body { margin-top: 12px; font-size: 16px; line-height: 1.75; color: var(--slate-500); }
.card-body strong { color: var(--navy-900); }

.icon-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--blue-100); color: var(--blue-600);
  transition: background 0.2s, color 0.2s, transform 0.5s;
}
.card:hover .icon-badge { background: var(--blue-600); color: #fff; }
.icon-badge-solid { background: var(--blue-600); color: #fff; }
.icon-badge-amber { background: rgba(251, 191, 36, 0.15); color: var(--amber-400); width: 44px; height: 44px; }
.icon-badge-glass { background: rgba(255, 255, 255, 0.15); color: #fff; width: 44px; height: 44px; }
.icon-rotate:hover { transform: rotate(360deg); }

.big-num { margin-top: 20px; font-size: 3rem; font-weight: 700; font-family: var(--font-num); color: var(--navy-900); }
.big-suffix { font-size: 1.25rem; font-family: var(--font-cn); font-weight: 700; }

/* ---------- 每屏悬念钩子 ---------- */
.hook { margin-top: 56px; display: flex; flex-direction: column; align-items: center; gap: 12px; text-align: center; }
.hook-left { align-items: flex-start; text-align: left; }
.hook-text { font-size: 18px; font-weight: 700; color: var(--blue-600); }
.hook-dark { color: var(--blue-400); }
.hook-icon { color: var(--blue-600); }
.hook-icon-dark { color: var(--blue-400); }
@media (min-width: 768px) { .hook-text { font-size: 20px; } }

.bounce { animation: bounce 1.6s infinite; }
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}

/* ============================================================
   Navbar
   ============================================================ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50; height: 64px;
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s;
}
.navbar.scrolled {
  background: rgba(6, 13, 36, 0.7);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom-color: rgba(255, 255, 255, 0.05);
}
.navbar-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.navbar-brand { display: flex; align-items: center; gap: 10px; }
.navbar-logo { height: 50px; width: auto; }
.navbar-sub { display: none; font-size: 16px; font-weight: 500; letter-spacing: 0.15em; color: var(--slate-300); }
@media (min-width: 640px) { .navbar-sub { display: inline; } }

.navbar-nav { display: flex; align-items: center; gap: 24px; }
.nav-link { display: none; font-size: 14px; font-weight: 500; color: var(--slate-300); transition: color 0.2s; }
.nav-link:hover { color: #fff; }
@media (min-width: 768px) { .nav-link { display: inline; } }
.nav-cta { box-shadow: 0 4px 20px rgba(30, 107, 255, 0.4); }

/* 移动端汉堡菜单（2026-09-08 兼容性修复：去掉 flex gap——iOS Safari≤14/老安卓不支持会
   把三条线挤没；改用 span 间距 margin 全浏览器通吃；加胶囊底+描边+白条 !important——
   小米等浏览器的强制深色/夜间模式会把 #fff 线条反色成深色融进背景，容器胶囊保证按钮可见） */
.nav-toggle {
  display: flex; flex-direction: column; justify-content: center;
  width: 40px; height: 40px; padding: 8px;
  -webkit-appearance: none; appearance: none; border: 1px solid rgba(255,255,255,.35);
  background: rgba(255,255,255,.12); border-radius: 10px;
}
.nav-toggle span { display: block; height: 2px; width: 100%; background: #fff !important; border-radius: 2px; transition: transform 0.25s, opacity 0.25s; }
.nav-toggle span + span { margin-top: 5px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (min-width: 768px) { .nav-toggle { display: none; } }

@media (max-width: 767px) {
  .navbar-nav {
    position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: rgba(6, 13, 36, 0.96);
    -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
    padding: 12px 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: none;
  }
  .navbar-nav.open { display: flex; }
  .navbar-nav .nav-link { display: block; padding: 12px 8px; font-size: 16px; }
  .navbar-nav .nav-cta { margin-top: 8px; padding: 12px; }
}

/* ============================================================
   Section 1 · Hero
   ============================================================ */
.hero { position: relative; overflow: hidden; background: var(--navy-950); color: #fff; margin-top: 0; }
.hero-grid-bg {
  position: absolute; inset: 0; opacity: 0.06;
  background-image: linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero-glow {
  position: absolute; right: -10%; top: 50%; transform: translateY(-50%);
  width: 80vmin; height: 80vmin; border-radius: 50%;
  background: radial-gradient(circle, rgba(30, 107, 255, 0.35), transparent 70%);
  animation: glow-breathe 6s ease-in-out infinite;
}
.hero-orb-wrap {
  position: absolute; top: 0; right: 0; bottom: 0; left: 0; overflow: hidden; pointer-events: none;
}
.hero-orb {
  position: absolute; top: 50%; transform: translateY(-50%);
  right: -30%; width: 130%; max-width: none;
  opacity: 0.5; mix-blend-mode: screen;
  animation: float 8s ease-in-out infinite;
}
@media (min-width: 640px) { .hero-orb { right: -15%; width: 90%; } }
@media (min-width: 1024px) { .hero-orb { right: -8%; width: 62%; } }

@keyframes float {
  0%, 100% { transform: translateY(calc(-50% - 16px)); }
  50% { transform: translateY(calc(-50% + 16px)); }
}
@keyframes float-y {
  0%, 100% { transform: translateY(-12px); }
  50% { transform: translateY(12px); }
}
@keyframes glow-breathe {
  0%, 100% { opacity: 0.25; }
  50% { opacity: 0.4; }
}

.hero-body { position: relative; padding-top: 64px; }
.hero-grid {
  min-height: 100svh; display: grid; align-items: center; gap: 48px;
  padding: 80px 0;
}
@media (min-width: 1024px) { .hero-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }

.hero-title { font-size: 2.25rem; font-weight: 900; line-height: 1.15; letter-spacing: -0.02em; margin-top: 24px; }
.hero-title .line { display: block; }
.line-white { color: #fff; }
.line-blue { color: var(--blue-500); text-shadow: 0 0 24px rgba(30, 107, 255, 0.5); }
@media (min-width: 768px) { .hero-title { font-size: 3.75rem; } }
@media (min-width: 1024px) { .hero-title { font-size: 4rem; } }

.hero-sub { margin-top: 24px; max-width: 36rem; font-size: 16px; line-height: 1.75; color: var(--slate-300); }
@media (min-width: 768px) { .hero-sub { font-size: 18px; } }

.hero-actions { margin-top: 32px; display: flex; flex-direction: column; gap: 12px; }
@media (min-width: 640px) { .hero-actions { flex-direction: row; } }

.hero-platforms { margin-top: 48px; }
.platforms-label { font-size: 12px; font-weight: 500; letter-spacing: 0.2em; color: var(--slate-400); }
.platforms-row { margin-top: 16px; display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; }
.platform-logo { height: 28px; width: auto; opacity: 0.6; filter: brightness(0) invert(1); transition: opacity 0.3s; }
.platform-logo:hover { opacity: 1; }

/* AI 对话模拟卡片 */
.hero-chat-col { display: flex; justify-content: center; }
@media (min-width: 1024px) { .hero-chat-col { justify-content: flex-end; } }
.chat-card {
  width: 100%; max-width: 28rem; border-radius: 24px; background: #fff;
  padding: 20px; color: var(--navy-900); box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  transition: transform 0.2s; will-change: transform;
}
@media (min-width: 768px) { .chat-card { padding: 24px; } }
.chat-head { display: flex; align-items: center; gap: 8px; border-bottom: 1px solid var(--slate-100); padding-bottom: 12px; margin-bottom: 16px; }
.chat-avatar { display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 50%; background: var(--blue-600); color: #fff; }
.chat-head-title { font-size: 14px; font-weight: 700; }
.chat-head-note { margin-left: auto; font-size: 12px; color: var(--slate-400); }
.chat-msg { width: fit-content; border-radius: 16px; padding: 10px 16px; font-size: 14px; line-height: 1.6; }
.chat-msg-user { margin-left: auto; margin-bottom: 12px; max-width: 85%; background: var(--blue-600); color: #fff; font-weight: 500; border-bottom-right-radius: 4px; }
.chat-msg-ai { max-width: 92%; background: var(--ice-50); color: var(--navy-900); border-bottom-left-radius: 4px; min-height: 44px; }
.chat-caret { color: var(--blue-600); animation: caret-blink 0.9s steps(2) infinite; }
@keyframes caret-blink { 50% { opacity: 0; } }
.chat-alert {
  margin-top: 12px; width: fit-content; border-radius: 12px;
  border: 2px solid rgba(239, 68, 68, 0.7); background: #FEF2F2;
  padding: 8px 16px; font-size: 14px; font-weight: 700; color: var(--red-500);
}
.chat-foot { margin-top: 16px; border-top: 1px solid var(--slate-100); padding-top: 12px; text-align: center; font-size: 12px; font-weight: 700; color: rgba(11, 27, 63, 0.7); }

.hero-hook { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 8px; padding-bottom: 40px; text-align: center; }
.hero-hook .hook-text { font-size: 18px; }
@media (min-width: 768px) { .hero-hook .hook-text { font-size: 20px; } }
.hook-arrow { color: var(--blue-400); display: inline-flex; }

/* ============================================================
   Section 3 · 定义
   ============================================================ */
.define-grid { display: grid; align-items: center; gap: 56px; }
@media (min-width: 1024px) { .define-grid { grid-template-columns: 1fr 1fr; } }

.define-card {
  margin-top: 32px; border-radius: 16px; border-left: 4px solid var(--blue-600);
  background: var(--navy-700); padding: 24px;
  font-size: 16px; line-height: 1.75; color: var(--slate-300);
}
@media (min-width: 768px) { .define-card { font-size: 18px; } }

.contrast-list { margin-top: 32px; display: flex; flex-direction: column; gap: 16px; }
.contrast-list li { display: flex; flex-direction: column; gap: 8px; }
.contrast-wrong { display: inline-flex; align-items: center; gap: 8px; width: fit-content; color: var(--slate-400); }
.strike { position: relative; }
.strike::after {
  content: ""; position: absolute; left: 0; top: 50%; height: 2px; width: 100%;
  transform: translateY(-50%); background: rgba(239, 68, 68, 0.7);
}
.contrast-arrow { display: none; color: var(--slate-500); }
.contrast-right { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: #fff; }
@media (min-width: 640px) {
  .contrast-list li { flex-direction: row; align-items: center; gap: 16px; }
  .contrast-arrow { display: inline; }
}

/* 右侧 5 层梯形漏斗 */
.define-funnel { margin: 0 auto; width: 100%; max-width: 24rem; }
.funnel-layer {
  position: relative; height: 64px; margin: 0 auto 12px;
  display: flex; align-items: center; justify-content: center;
  width: var(--w);
  border-radius: 12px; font-size: 14px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, rgba(30,107,255,var(--o1)) 0%, rgba(37,99,235,var(--o2)) 60%, #0B1B3F 100%);
  clip-path: polygon(0 0, 100% 0, 92% 100%, 8% 100%);
  transition: transform 0.3s;
  cursor: default;
}
.funnel-layer:hover { transform: scale(1.03); }
.funnel-layer::after {
  content: attr(data-tip);
  position: absolute; top: -8px; left: 50%; transform: translate(-50%, -100%);
  background: #fff; color: var(--navy-900); font-size: 12px; font-weight: 700;
  padding: 4px 12px; border-radius: 999px; box-shadow: 0 8px 20px rgba(0,0,0,.35);
  white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity 0.2s;
  clip-path: none;
}
.funnel-layer:hover::after { opacity: 1; }
@media (min-width: 768px) { .funnel-layer { height: 72px; font-size: 16px; } }
.funnel-note { margin-top: 16px; text-align: center; font-size: 12px; letter-spacing: 0.2em; color: var(--slate-400); }

/* ============================================================
   Section 4 · 五层漏斗卡片栈
   ============================================================ */
#geo-funnel { overflow: hidden; }
.funnel-grid { display: grid; gap: 48px; }
@media (min-width: 1024px) {
  .funnel-grid { grid-template-columns: 1fr 1.2fr; }
  .funnel-sticky { position: sticky; top: 112px; align-self: start; }
}
.funnel-conclusion {
  border-radius: 16px; border-left: 4px solid var(--green-500);
  background: var(--navy-900); padding: 20px;
  font-size: 16px; font-weight: 700; line-height: 1.75; color: #fff;
}
.funnel-conclusion-desktop { display: none; margin-top: 40px; }
.funnel-conclusion-mobile { margin-top: 24px; }
@media (min-width: 768px) {
  .funnel-conclusion-desktop { display: block; }
  .funnel-conclusion-mobile { display: none; }
}

.funnel-stack-wrap { position: relative; }
.funnel-progress {
  position: absolute; left: -20px; top: 8px; bottom: 8px; width: 4px;
  border-radius: 999px; background: var(--navy-700); display: none;
}
.funnel-progress span { display: block; width: 100%; height: 0; border-radius: 999px; background: linear-gradient(to bottom, var(--blue-600), var(--green-500)); transition: height 0.5s ease; }
@media (min-width: 768px) { .funnel-progress { display: block; } }

.funnel-stack { display: flex; flex-direction: column; gap: 16px; }
.funnel-card {
  border-radius: 16px; border: 1px solid rgba(255, 255, 255, 0.05);
  background: var(--navy-900); padding: 20px;
  transition: border-color 0.3s, opacity 0.5s, transform 0.5s;
}
.funnel-card:hover { border-color: rgba(30, 107, 255, 0.4); }
@media (min-width: 768px) { .funnel-card { padding: 24px; } }
/* JS 点亮模式 */
html.js .funnel-card { opacity: 0.35; transform: scale(0.98); }
html.js .funnel-card.lit { opacity: 1; transform: scale(1); }
html.js .funnel-card.lit .funnel-num { color: var(--layer-color, var(--blue-600)); }

.funnel-card-head { display: flex; align-items: center; gap: 16px; width: 100%; text-align: left; }
.funnel-num { font-family: var(--font-num); font-size: 1.875rem; font-weight: 700; color: #475569; transition: color 0.4s; }
@media (min-width: 768px) { .funnel-num { font-size: 2.25rem; } }
.funnel-card-text { flex: 1; min-width: 0; }
.funnel-card-name { display: block; font-size: 1.25rem; font-weight: 700; color: #fff; }
.funnel-card-brief { display: block; margin-top: 4px; font-size: 14px; color: var(--slate-300); }
@media (min-width: 768px) {
  .funnel-card-name { font-size: 1.5rem; }
  .funnel-card-brief { font-size: 16px; }
}
.funnel-plus { flex-shrink: 0; color: var(--slate-400); transition: transform 0.3s; }
.funnel-card.open .funnel-plus { transform: rotate(45deg); }
.funnel-detail { margin-top: 12px; border-top: 1px solid rgba(255, 255, 255, 0.1); padding-top: 12px; font-size: 14px; line-height: 1.75; color: var(--slate-300); }
html.js .funnel-detail { display: none; }
html.js .funnel-card.open .funnel-detail { display: block; }

/* ============================================================
   Section 5 · 作用链路
   ============================================================ */
.chain-list { position: relative; margin-top: 48px; display: flex; flex-direction: column; gap: 16px; }
.chain-list::before {
  content: ""; position: absolute; top: 8px; bottom: 8px; left: 22px; width: 2px;
  background: linear-gradient(to bottom, var(--blue-600), rgba(37, 99, 235, 0.2));
}
.chain-node { display: flex; align-items: center; gap: 16px; }
.chain-dot {
  z-index: 1; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--blue-600); color: #fff;
  font-family: var(--font-num); font-size: 14px; font-weight: 700;
}
.chain-card { flex: 1; border-radius: 16px; border: 1px solid var(--slate-100); background: #fff; padding: 16px; box-shadow: var(--shadow-card); }
.chain-name { font-size: 14px; font-weight: 700; }
.chain-tip { margin-top: 4px; font-size: 12px; color: var(--slate-500); }

@media (min-width: 1024px) {
  .chain-list {
    flex-direction: row; flex-wrap: wrap; gap: 16px;
  }
  .chain-list::before {
    left: 0; right: 0; top: 50%; bottom: auto; width: auto; height: 2px;
    transform: translateY(-50%);
    background: linear-gradient(to right, var(--blue-600), rgba(37, 99, 235, 0.3));
  }
  .chain-node { flex-direction: column; width: calc(25% - 12px); text-align: center; }
  .chain-card { width: 100%; transition: transform 0.3s, box-shadow 0.3s; }
  .chain-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
}

.chain-darkcard {
  margin-top: 24px; border-radius: 24px; background: var(--navy-900); color: #fff;
  padding: 32px; text-align: center; font-size: 16px; font-weight: 700; line-height: 1.75;
}
@media (min-width: 768px) { .chain-darkcard { font-size: 18px; } }

.chain-badges { margin-top: 48px; text-align: center; }
.badge-row { margin-top: 16px; display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.badge {
  border-radius: 999px; background: var(--blue-100); color: var(--blue-600);
  padding: 6px 16px; font-size: 14px; font-weight: 700;
  transition: transform 0.2s;
}
.badge:hover { transform: scale(1.08); }
.badge-dark { background: rgba(30, 107, 255, 0.15); color: var(--blue-400); box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.3); }

/* ============================================================
   Section 6 · 误区翻转卡
   ============================================================ */
.flip { height: 18rem; perspective: 1200px; cursor: pointer; outline: none; }
.flip-inner { position: relative; height: 100%; width: 100%; transition: transform 0.6s; transform-style: preserve-3d; }
.flip.flipped .flip-inner { transform: rotateY(180deg); }
@media (min-width: 1024px) {
  .flip:hover .flip-inner, .flip:focus .flip-inner { transform: rotateY(180deg); }
}
.flip-face {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  border-radius: 16px; padding: 28px; backface-visibility: hidden; -webkit-backface-visibility: hidden;
}
.flip-front { background: var(--navy-700); }
.flip-back { background: var(--blue-600); transform: rotateY(180deg); }
.flip-top { display: flex; align-items: center; justify-content: space-between; }
.flip-hint { display: flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; color: var(--slate-300); }
.flip-no { margin-top: 24px; font-family: var(--font-num); font-size: 14px; font-weight: 700; letter-spacing: 0.15em; color: var(--amber-400); }
.flip-title { margin-top: 8px; font-size: 1.25rem; font-weight: 700; color: #fff; }
.flip-body { margin-top: 12px; font-size: 16px; line-height: 1.75; color: var(--slate-300); }
.flip-back-label { margin-top: 24px; font-size: 14px; font-weight: 700; letter-spacing: 0.15em; color: rgba(255, 255, 255, 0.8); }
.flip-back-body { margin-top: 12px; font-size: 16px; font-weight: 700; line-height: 1.75; color: #fff; }

.mistake-banner {
  margin-top: 56px; border-radius: 24px; padding: 40px 32px; text-align: center;
  background: linear-gradient(135deg, #1E6BFF 0%, #2563EB 50%, #0B1B3F 100%);
  background-size: 200% 200%;
  animation: gradient-flow 8s ease infinite;
}
@keyframes gradient-flow {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.mistake-banner-main { font-size: 1.5rem; font-weight: 900; line-height: 1.4; color: #fff; }
.mistake-banner-sub { margin-top: 12px; font-size: 18px; font-weight: 700; color: rgba(255, 255, 255, 0.85); }
@media (min-width: 768px) {
  .mistake-banner-main { font-size: 2.25rem; }
  .mistake-banner-sub { font-size: 1.5rem; }
}

/* ============================================================
   Section 7 · 见效周期
   ============================================================ */
.phase-num { font-family: var(--font-num); font-size: 3.75rem; font-weight: 700; color: var(--navy-900); }
@media (min-width: 768px) { .phase-num { font-size: 4rem; } }
.phase-suffix { font-size: 1.5rem; font-family: var(--font-cn); font-weight: 700; }
@media (min-width: 768px) { .phase-suffix { font-size: 1.875rem; } }
.phase-title { margin-top: 12px; font-size: 1.25rem; font-weight: 700; color: var(--blue-600); }
@media (min-width: 768px) { .phase-title { font-size: 1.5rem; } }
.dot-list { margin-top: 16px; display: flex; flex-direction: column; gap: 8px; font-size: 16px; line-height: 1.75; color: var(--slate-500); }
.dot-list li { display: flex; align-items: flex-start; gap: 8px; }
.dot-list li::before { content: ""; margin-top: 10px; width: 6px; height: 6px; flex-shrink: 0; border-radius: 50%; background: var(--blue-600); }

/* 5 阶段步骤条 */
.stepper { margin-top: 64px; }
.stepper-track { position: relative; }
.stepper-line { display: none; position: absolute; left: 0; right: 0; top: 24px; height: 2px; background: var(--blue-100); }
.stepper-line-fill { display: none; position: absolute; left: 0; right: 0; top: 24px; height: 2px; background: var(--blue-600); transform-origin: left center; }
@media (min-width: 768px) { .stepper-line, .stepper-line-fill { display: block; } }
.stepper-steps { display: grid; gap: 16px; }
@media (min-width: 768px) { .stepper-steps { grid-template-columns: repeat(5, 1fr); } }
.step { display: flex; align-items: center; gap: 12px; text-align: left; }
@media (min-width: 768px) { .step { flex-direction: column; text-align: center; } }
.step-dot {
  z-index: 1; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: 50%; border: 2px solid var(--blue-100);
  background: #fff; color: var(--blue-600);
  font-family: var(--font-num); font-size: 14px; font-weight: 700;
  transition: all 0.3s;
}
.step:hover .step-dot { border-color: var(--blue-600); }
.step.is-active .step-dot {
  border-color: var(--blue-600); background: var(--blue-600); color: #fff;
  box-shadow: 0 6px 20px rgba(30, 107, 255, 0.4);
}
.step-name { display: block; font-size: 14px; font-weight: 700; color: var(--navy-900); }
.step.is-active .step-name { color: var(--blue-600); }
.step-sub { display: block; font-size: 12px; color: var(--slate-500); }
.stepper-watch {
  margin-top: 24px; min-height: 64px; border-radius: 16px; background: #fff;
  padding: 20px; text-align: center; font-size: 16px; font-weight: 700;
  color: var(--navy-900); box-shadow: var(--shadow-card);
}

.notice-card { margin-top: 40px; border-radius: 16px; border-left: 4px solid var(--amber-400); background: #fff; padding: 24px; box-shadow: var(--shadow-card); }
.notice-card p { font-size: 16px; line-height: 1.75; color: var(--slate-500); }
.notice-card strong { color: var(--navy-900); }

/* ============================================================
   Section 8 · Tabs
   ============================================================ */
.tabs { margin-top: 48px; }
.tabs-head { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
@media (min-width: 768px) { .tabs-head { gap: 16px; } }
.tab-btn {
  display: inline-flex; align-items: center; gap: 8px;
  border-radius: 999px; padding: 10px 20px;
  font-size: 14px; font-weight: 700; color: var(--slate-300);
  transition: color 0.2s, background 0.2s;
}
@media (min-width: 768px) { .tab-btn { font-size: 16px; } }
.tab-btn:hover { color: #fff; }
.tab-btn.is-active { background: var(--blue-600); color: #fff; }

.tabs-panels { margin-top: 32px; }
html.js .tab-panel { display: none; }
.tab-panel {
  display: grid; gap: 24px; border-radius: 24px;
  background: rgba(6, 13, 36, 0.6); padding: 24px;
  margin-bottom: 16px;
}
html.js .tab-panel { margin-bottom: 0; }
html.js .tab-panel.is-active { display: grid; }
@media (min-width: 768px) {
  .tab-panel { grid-template-columns: 1fr 1fr; padding: 40px; }
}
.tab-scene { font-size: 14px; font-weight: 500; letter-spacing: 0.15em; color: var(--slate-400); }
.tab-question { margin-top: 12px; font-size: 1.25rem; font-weight: 700; color: var(--blue-400); }
@media (min-width: 768px) { .tab-question { font-size: 1.5rem; } }
.tab-note { margin-top: 16px; border-radius: 12px; background: rgba(251, 191, 36, 0.1); padding: 16px; font-size: 14px; font-weight: 700; color: var(--amber-400); }
.tab-warning { margin-top: 16px; display: flex; align-items: flex-start; gap: 8px; border-radius: 12px; background: rgba(239, 68, 68, 0.1); padding: 16px; font-size: 14px; font-weight: 700; color: var(--red-500); }
.tab-warning svg { flex-shrink: 0; margin-top: 2px; }
.metric-grid { display: grid; gap: 12px; align-content: start; }
@media (min-width: 640px) { .metric-grid { grid-template-columns: 1fr 1fr; } }
.metric-card {
  display: flex; align-items: center; justify-content: center; text-align: center;
  border-radius: 16px; border: 1px solid rgba(30, 107, 255, 0.25);
  background: var(--navy-700); padding: 16px;
  font-size: 14px; font-weight: 700; color: #fff;
  transition: transform 0.2s;
}
.metric-card:hover { transform: translateY(-2px); }

.method-bar {
  margin-top: 48px; display: flex; flex-direction: column; align-items: center; gap: 16px;
  border-radius: 16px; border: 1px solid rgba(255, 255, 255, 0.1); padding: 24px; text-align: center;
}
.method-bar .badge-row { margin-top: 0; }
.method-title { font-size: 16px; font-weight: 700; }
@media (min-width: 768px) {
  .method-bar { flex-direction: row; justify-content: space-between; text-align: left; }
  .method-title { font-size: 18px; }
}

/* ============================================================
   Section 9 · 投入
   ============================================================ */
.flow-card { margin-top: 56px; border-radius: 24px; background: var(--ice-50); padding: 24px; }
@media (min-width: 768px) { .flow-card { padding: 32px; } }
.flow-cols { display: flex; flex-direction: column; align-items: center; gap: 24px; }
@media (min-width: 768px) { .flow-cols { flex-direction: row; justify-content: space-between; } }
.flow-col { width: 100%; }
@media (min-width: 768px) { .flow-col { width: auto; } }
.flow-label { font-size: 12px; font-weight: 500; letter-spacing: 0.15em; color: var(--slate-500); }
.flow-label.text-blue { color: var(--blue-600); }
.flow-chips { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border-radius: 999px; padding: 6px 16px; font-size: 14px; font-weight: 700; box-shadow: 0 1px 2px rgba(11,27,63,.06); }
.chip-plain { background: #fff; color: var(--slate-500); }
.chip-blue { background: var(--blue-600); color: #fff; }
.flow-arrow { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.flow-arrow-svg { display: none; }
.flow-arrow-m { color: var(--blue-600); transform: rotate(90deg); }
@media (min-width: 768px) {
  .flow-arrow-svg { display: block; }
  .flow-arrow-m { display: none; }
}
.flow-arrow-label { font-size: 12px; font-weight: 700; color: var(--blue-600); }
.flow-conclusion { margin-top: 24px; text-align: center; font-size: 14px; font-weight: 700; color: rgba(11, 27, 63, 0.7); }

.asset-grid { margin-top: 56px; display: grid; gap: 20px; }
@media (min-width: 640px) { .asset-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .asset-grid { grid-template-columns: repeat(6, 1fr); } .asset-card:nth-child(-n+2) { grid-column: span 3; } .asset-card:nth-child(n+3) { grid-column: span 2; } }
.asset-card { padding: 24px; }
.asset-card:hover { transform: translateY(-6px); }
.asset-top { display: flex; align-items: center; justify-content: space-between; }
.asset-no { font-family: var(--font-num); font-size: 1.5rem; font-weight: 700; color: var(--slate-200); }
.asset-brief { margin-top: 8px; font-size: 14px; font-weight: 700; color: rgba(11, 27, 63, 0.8); }
.asset-body { margin-top: 4px; font-size: 14px; line-height: 1.75; color: var(--slate-500); }

.ladder { margin-top: 64px; }
.ladder-steps { display: flex; align-items: flex-end; justify-content: center; gap: 12px; }
@media (min-width: 768px) { .ladder-steps { gap: 20px; } }
.ladder-step { display: flex; flex-direction: column; align-items: center; gap: 8px; width: 100%; max-width: 10rem; }
.ladder-name { text-align: center; font-size: 14px; font-weight: 700; }
@media (min-width: 768px) { .ladder-name { font-size: 16px; } }
.ladder-bar { width: 100%; border-radius: 16px 16px 0 0; }
.ladder-note { margin: 32px auto 0; max-width: 48rem; text-align: center; font-size: 16px; line-height: 1.75; color: var(--slate-500); }
.ladder-note strong { color: var(--navy-900); }
@media (min-width: 768px) { .ladder-note { font-size: 18px; } }

/* ============================================================
   Section 10 · 监测看板
   ============================================================ */
#geo-dashboard { overflow: hidden; }
.mockup { margin-top: 56px; overflow: hidden; border-radius: 24px; border: 1px solid rgba(255, 255, 255, 0.1); background: var(--navy-900); box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5); }
.mockup-bar { display: flex; align-items: center; gap: 8px; border-bottom: 1px solid rgba(255, 255, 255, 0.1); padding: 14px 20px; }
.mockup-dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-red { background: rgba(239, 68, 68, 0.8); }
.dot-amber { background: rgba(251, 191, 36, 0.8); }
.dot-green { background: rgba(34, 197, 94, 0.8); }
.mockup-url {
  margin-left: 16px; display: flex; align-items: center; gap: 8px;
  border-radius: 999px; background: var(--navy-950); padding: 4px 16px;
  font-size: 12px; color: var(--slate-400); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.mockup-url svg { flex-shrink: 0; color: var(--blue-400); }
.mockup-body { padding: 20px; }
@media (min-width: 768px) { .mockup-body { padding: 32px; } }

.kpi-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (min-width: 1024px) { .kpi-grid { grid-template-columns: repeat(4, 1fr); } }
.kpi-card { position: relative; border-radius: 16px; background: var(--navy-700); padding: 20px; transition: background 0.3s; }
.kpi-card:hover { background: rgba(22, 48, 94, 0.7); }
.kpi-label { font-size: 14px; font-weight: 500; color: var(--slate-300); }
.kpi-value { margin-top: 8px; font-family: var(--font-num); font-size: 1.875rem; font-weight: 700; color: #fff; }
@media (min-width: 768px) { .kpi-value { font-size: 2.25rem; } }
.kpi-delta { margin-top: 8px; display: flex; align-items: center; gap: 4px; font-size: 14px; font-weight: 700; color: var(--green-500); }
.kpi-tip {
  position: absolute; top: -8px; left: 50%; transform: translate(-50%, -100%);
  width: 12rem; border-radius: 12px; background: #fff; color: var(--navy-900);
  padding: 8px 12px; font-size: 12px; line-height: 1.5; box-shadow: 0 20px 40px rgba(0,0,0,.4);
  opacity: 0; pointer-events: none; transition: opacity 0.2s; z-index: 20;
}
.kpi-card:hover .kpi-tip, .kpi-card:focus .kpi-tip { opacity: 1; }

.bars-card { margin-top: 32px; border-radius: 16px; background: rgba(6, 13, 36, 0.6); padding: 20px; }
@media (min-width: 768px) { .bars-card { padding: 24px; } }
.bars-title { font-size: 14px; font-weight: 700; color: var(--slate-300); }
.bars-list { margin-top: 16px; display: flex; flex-direction: column; gap: 16px; }
.bar-row { display: flex; align-items: center; gap: 12px; }
@media (min-width: 768px) { .bar-row { gap: 16px; } }
.bar-logo { height: 24px; width: 80px; flex-shrink: 0; object-fit: contain; object-position: left; opacity: 0.8; filter: brightness(0) invert(1); transition: opacity 0.3s; }
.bar-row:hover .bar-logo { opacity: 1; }
.bar-track { flex: 1; height: 28px; overflow: hidden; border-radius: 999px; background: var(--navy-700); }
.bar-fill {
  display: flex; align-items: center; justify-content: flex-end; height: 100%;
  border-radius: 999px; padding-right: 12px;
  background: linear-gradient(90deg, #1E6BFF 0%, #2563EB 60%, #7EA6FF 100%);
  transition: filter 0.3s, transform 1s cubic-bezier(0.22, 1, 0.36, 1);
  transform-origin: left center;
}
.bar-row:hover .bar-fill { filter: brightness(1.25); }
html.js .bar-fill { transform: scaleX(0); }
html.js .bar-fill.grown { transform: scaleX(1); }
.bar-pct { font-family: var(--font-num); font-size: 12px; font-weight: 700; color: #fff; }

.volatility-note { margin-top: 24px; border-radius: 16px; border: 1px solid rgba(251, 191, 36, 0.3); background: rgba(251, 191, 36, 0.05); padding: 16px; font-size: 14px; line-height: 1.75; color: var(--slate-300); }
.vol-num { font-family: var(--font-num); font-weight: 700; color: var(--amber-400); }

/* ============================================================
   Section 11 · 老板自检
   ============================================================ */
.quiz-card {
  margin: 48px auto 0; max-width: 42rem; border-radius: 24px;
  background: #fff; padding: 24px; box-shadow: var(--shadow-card);
}
@media (min-width: 768px) { .quiz-card { padding: 40px; } }
.quiz-progress-row { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.quiz-progress { flex: 1; height: 8px; border-radius: 999px; background: var(--slate-100); overflow: hidden; }
.quiz-progress span { display: block; height: 100%; width: 0; border-radius: 999px; background: var(--blue-600); transition: width 0.35s ease; }
.quiz-count { font-family: var(--font-num); font-size: 14px; font-weight: 700; color: var(--slate-400); }
.quiz-stage { min-height: 10rem; }
.quiz-question { font-size: 18px; font-weight: 700; line-height: 1.75; }
@media (min-width: 768px) { .quiz-question { font-size: 20px; } }
html.js .quiz-question { display: none; }
html.js .quiz-question.is-current { display: block; animation: quiz-in 0.3s ease; }
@keyframes quiz-in { from { opacity: 0; transform: translateX(40px); } to { opacity: 1; transform: none; } }
.quiz-actions { margin-top: 32px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.quiz-actions .btn { padding: 14px; font-size: 16px; }
.quiz-actions .btn:active { transform: scale(0.95); }
.quiz-noscript { margin-top: 16px; font-size: 13px; color: var(--slate-400); text-align: center; }

.quiz-result { text-align: center; animation: result-pop 0.45s cubic-bezier(0.34, 1.56, 0.64, 1); }
@keyframes result-pop { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }
.quiz-result-meta { font-size: 14px; font-weight: 500; letter-spacing: 0.15em; color: var(--slate-500); }
.quiz-result-title { margin-top: 12px; font-size: 1.5rem; font-weight: 900; color: var(--blue-600); }
@media (min-width: 768px) { .quiz-result-title { font-size: 1.875rem; } }
.quiz-result-desc { margin-top: 8px; font-size: 18px; font-weight: 700; color: var(--navy-900); }
.quiz-result-advice { margin: 16px auto 0; max-width: 28rem; border-radius: 16px; background: var(--ice-50); padding: 16px; font-size: 16px; line-height: 1.75; color: var(--slate-500); }
.quiz-result-actions { margin-top: 32px; display: flex; flex-direction: column; justify-content: center; gap: 12px; }
.quiz-result-actions .btn { padding: 14px 28px; font-size: 16px; }
@media (min-width: 640px) { .quiz-result-actions { flex-direction: row; } }

/* 该调整的信号（折叠） */
.signals { margin: 40px auto 0; max-width: 42rem; border-radius: 16px; background: #fff; padding: 0 24px; box-shadow: var(--shadow-card); }
.signals-toggle {
  display: flex; align-items: center; justify-content: space-between; width: 100%;
  padding: 20px 0; font-size: 16px; font-weight: 700; color: var(--navy-900);
}
.signals-chevron { transition: transform 0.3s; color: var(--slate-400); }
.signals.open .signals-chevron { transform: rotate(180deg); }
.signals-body { padding-bottom: 20px; }
html.js .signals-body { display: none; }
html.js .signals.open .signals-body { display: block; }
.signals-list { display: grid; gap: 8px; }
@media (min-width: 640px) { .signals-list { grid-template-columns: 1fr 1fr; } }
.signals-list li {
  display: flex; align-items: center; gap: 8px; border-radius: 12px;
  background: var(--ice-50); padding: 10px 16px;
  font-size: 14px; font-weight: 500; color: var(--slate-500);
}

/* ============================================================
   Section 12 · 最终 CTA
   ============================================================ */
.section-cta {
  position: relative; overflow: hidden; color: #fff; padding: 112px 0;
  background: linear-gradient(135deg, #1E6BFF 0%, #2563EB 40%, #0B1B3F 80%, #060D24 100%);
}
.cta-glow {
  pointer-events: none; position: absolute; left: 50%; top: 0; transform: translateX(-50%);
  width: 90vmin; height: 70vmin; border-radius: 50%; opacity: 0.4;
  background: radial-gradient(circle, rgba(30, 107, 255, 0.5), transparent 70%);
}
.cta-grid { position: relative; display: grid; align-items: center; gap: 56px; }
@media (min-width: 1024px) { .cta-grid { grid-template-columns: 1.2fr 1fr; } }
.cta-title { margin-top: 24px; font-size: 1.875rem; font-weight: 900; line-height: 1.15; }
@media (min-width: 768px) { .cta-title { font-size: 3rem; } }
@media (min-width: 1024px) { .cta-title { font-size: 3.75rem; } }
.cta-sub { margin-top: 16px; font-size: 20px; font-weight: 700; color: #BFD4FF; }
@media (min-width: 768px) { .cta-sub { font-size: 24px; } }
.cta-values { margin-top: 32px; display: flex; flex-direction: column; gap: 12px; }
.cta-values li { display: flex; align-items: center; gap: 12px; font-size: 16px; font-weight: 500; }
@media (min-width: 768px) { .cta-values li { font-size: 18px; } }
.cta-check { display: flex; align-items: center; justify-content: center; width: 28px; height: 28px; flex-shrink: 0; border-radius: 50%; background: var(--green-500); color: #fff; }
.cta-actions { margin-top: 40px; display: flex; flex-direction: column; gap: 16px; }
@media (min-width: 640px) { .cta-actions { flex-direction: row; align-items: center; } }

.btn-pulse { animation: pulse-ring 2s ease-out infinite; }
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(30, 107, 255, 0.55); }
  70% { box-shadow: 0 0 0 18px rgba(30, 107, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(30, 107, 255, 0); }
}

.cta-trust { margin-top: 40px; border-top: 1px solid rgba(255, 255, 255, 0.1); padding-top: 24px; }
.cta-trust .platform-logo { height: 24px; opacity: 0.7; }
.cta-trust-note { margin-top: 12px; font-size: 14px; color: rgba(255, 255, 255, 0.7); }

.cta-figure { position: relative; margin: 0 auto; width: 100%; max-width: 28rem; }
.cta-portrait { width: 100%; border-radius: 24px; }
.cta-bubble {
  position: absolute; border-radius: 16px; padding: 8px 16px;
  font-size: 14px; font-weight: 700; box-shadow: 0 16px 32px rgba(0, 0, 0, 0.25);
  animation: float-y 6s ease-in-out infinite;
}
.bubble-1 { left: -12px; top: 40px; background: #fff; color: var(--navy-900); animation-delay: -2s; }
.bubble-2 { right: -8px; top: 33%; background: var(--blue-600); color: #fff; animation-delay: -5s; }
.bubble-3 { left: -8px; bottom: 64px; background: var(--green-500); color: #fff; }

/* ============================================================
   Footer
   ============================================================ */
.footer { border-top: 1px solid rgba(255, 255, 255, 0.05); background: var(--navy-950); color: #fff; }
.footer .container { padding-top: 64px; padding-bottom: 64px; }
.footer-grid { display: grid; gap: 48px; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 1.4fr 1fr; align-items: start; } }
.footer-logo { height: 36px; width: auto; }
.footer-slogan { margin-top: 16px; font-size: 18px; font-weight: 700; }
.footer-platforms-label { margin-top: 24px; font-size: 14px; font-weight: 500; letter-spacing: 0.15em; color: var(--slate-300); }
.footer .platform-logo { opacity: 0.7; }
.footer-qr { display: flex; align-items: center; gap: 20px; border-radius: 24px; background: var(--navy-900); padding: 20px; }
@media (min-width: 768px) { .footer-qr { justify-self: end; } }
.footer-qr-img { width: 112px; height: 112px; border-radius: 16px; }
.footer-qr-title { font-size: 16px; font-weight: 700; }
.footer-qr-book { margin-top: 4px; font-size: 16px; font-weight: 700; color: var(--blue-400); }
.footer-qr-note { margin-top: 8px; font-size: 12px; color: var(--slate-300); }
.footer-bottom {
  margin-top: 56px; border-top: 1px solid rgba(255, 255, 255, 0.05); padding-top: 24px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  text-align: center; font-size: 12px; color: var(--slate-500);
}
.footer-share-hint { color: var(--slate-300); }
@media (min-width: 768px) { .footer-bottom { flex-direction: row; justify-content: space-between; } }

/* ============================================================
   浮动分享按钮 / 弹窗 / Toast
   ============================================================ */
.share-float {
  position: fixed; bottom: 24px; right: 16px; z-index: 50;
  display: flex; align-items: center; gap: 8px;
  border-radius: 999px; background: var(--blue-600); color: #fff;
  padding: 12px 20px; font-size: 14px; font-weight: 700;
  box-shadow: var(--shadow-blue);
  transition: background 0.3s, transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.25s;
}
.share-float:hover { background: var(--blue-500); }
.share-float[hidden] { display: none; }
.share-float.pop { animation: pop-in 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); }
@keyframes pop-in { from { transform: scale(0); opacity: 0; } to { transform: scale(1); opacity: 1; } }
@media (min-width: 768px) {
  .share-float {
    bottom: auto; right: 0; top: 50%; transform: translateY(-50%);
    flex-direction: column; gap: 6px;
    border-radius: 16px 0 0 16px; padding: 20px 12px;
  }
  .share-float-text { writing-mode: vertical-lr; letter-spacing: 0.3em; }
}

/* 弹窗 */
.dialog { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 20px; }
.dialog[hidden] { display: none; }
.dialog-mask { position: absolute; inset: 0; background: rgba(6, 13, 36, 0.75); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.dialog-panel {
  position: relative; width: 100%; max-width: 28rem; max-height: calc(100svh - 40px);
  overflow-y: auto; overflow-x: hidden;
  border-radius: 24px; border: 1px solid var(--navy-700);
  background: var(--navy-900); color: #fff; padding: 28px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
  animation: dialog-in 0.3s cubic-bezier(0.34, 1.3, 0.64, 1);
  /* 禁止超长文本撑爆布局 */
  word-break: break-word; overflow-wrap: anywhere;
}
@keyframes dialog-in { from { opacity: 0; transform: scale(0.92) translateY(12px); } to { opacity: 1; transform: none; } }
.dialog-close {
  position: absolute; top: 16px; right: 16px;
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 50%;
  color: var(--slate-400); transition: background 0.2s, color 0.2s;
}
.dialog-close:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }
.dialog-title { font-size: 20px; font-weight: 700; }
.dialog-desc { margin-top: 8px; font-size: 14px; color: var(--slate-300); }
.dialog-body { margin-top: 20px; display: flex; flex-direction: column; gap: 12px; }
.dialog-body-center { align-items: center; }
.dialog-qr { width: 208px; height: 208px; border-radius: 16px; background: #fff; }
.dialog-tip {
  display: flex; align-items: flex-start; gap: 12px;
  border-radius: 16px; background: rgba(22, 48, 94, 0.6); padding: 16px;
  font-size: 14px; color: var(--slate-300);
}
.dialog-tip svg { flex-shrink: 0; margin-top: 2px; color: var(--blue-400); }
.dialog-tip p { min-width: 0; word-break: break-word; overflow-wrap: anywhere; }
.tip-mono { font-family: var(--font-num); color: var(--blue-400); }

/* Toast */
.toast {
  position: fixed; bottom: 96px; left: 50%; transform: translateX(-50%);
  z-index: 110; border-radius: 999px; background: #fff; color: var(--navy-900);
  padding: 12px 24px; font-size: 14px; font-weight: 700;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  animation: toast-in 0.3s ease;
}
.toast[hidden] { display: none; }
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, 12px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* ============================================================
   滚动显现（JS 渐进增强：无 JS 时内容默认可见）
   ============================================================ */
html.js .reveal { opacity: 0; transform: translateY(48px); transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1), transform 0.8s cubic-bezier(0.22, 1, 0.36, 1); }
html.js .reveal.visible { opacity: 1; transform: none; }

/* 减少动效偏好：全部直接显示 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  html.js .reveal { opacity: 1; transform: none; }
  html.js .bar-fill { transform: scaleX(1); }
  html.js .funnel-card { opacity: 1; transform: none; }
}