/* =========================================================
   企业 GEO 内容工厂 · 实战培训课程
   Design tokens
   ========================================================= */
:root {
  --navy: #0a1622;
  --navy-soft: #0f2131;
  --navy-3: #16324a;
  --gold: #c8a46a;
  --gold-light: #e2c99a;
  --gold-deep: #8a6a3a;
  --paper: #f6f3ec;
  --paper-deep: #ece7dd;
  --ink: #161f28;
  --muted: #6b757d;
  --line: rgba(10, 22, 34, 0.12);
  --line-dark: rgba(255, 255, 255, 0.13);
  --white: #ffffff;
  --container: 1180px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --shadow-sm: 0 8px 24px rgba(10, 22, 34, 0.06);
  --shadow-md: 0 20px 50px rgba(10, 22, 34, 0.1);
  --header-h: 80px;
  --hero-img: url("https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=professional%20corporate%20training%20workshop%20in%20a%20modern%20dark%20conference%20room%2C%20attendees%20with%20laptops%2C%20presenter%20silhouette%20beside%20a%20large%20glowing%20screen%20showing%20abstract%20data%20maps%20and%20charts%2C%20deep%20navy%20blue%20and%20warm%20gold%20lighting%2C%20cinematic%20wide%20shot%2C%20premium%20editorial%20photography%2C%20soft%20haze%2C%20no%20text%2C%20no%20logos%2C%20no%20watermark&image_size=landscape_16_9");
}

/* =========================================================
   Base
   ========================================================= */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC",
    "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; }
p { margin: 0; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; }
table { border-collapse: collapse; width: 100%; }

::selection { background: rgba(200, 164, 106, 0.28); }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}

/* =========================================================
   Scroll progress + header
   ========================================================= */
.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-light));
  z-index: 300;
  transition: width 0.1s linear;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  color: #fff;
  transition: background 0.35s var(--ease), color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.site-header.scrolled {
  background: rgba(246, 243, 236, 0.94);
  color: var(--ink);
  box-shadow: 0 1px 0 rgba(10, 22, 34, 0.1);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  flex-shrink: 0;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.3; }
.brand-text strong { font-size: 15px; letter-spacing: 0.04em; font-weight: 600; }
.brand-text em {
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.16em;
  opacity: 0.66;
}

.nav { display: flex; align-items: center; gap: 30px; }
.nav a {
  position: relative;
  font-size: 14px;
  letter-spacing: 0.03em;
  padding: 6px 0;
  opacity: 0.82;
  transition: opacity 0.2s, color 0.2s;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--gold);
  transition: right 0.3s var(--ease);
}
.nav a:hover,
.nav a.active { opacity: 1; }
.nav a:hover::after,
.nav a.active::after { right: 0; }

.header-actions { display: flex; align-items: center; gap: 14px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  border: 1px solid transparent;
  font-size: 14px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.25s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--gold);
  color: var(--navy);
  border-color: var(--gold);
  font-weight: 600;
}
.btn-primary:hover { background: var(--gold-light); border-color: var(--gold-light); }
.btn-outline {
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
  background: transparent;
}
.btn-outline:hover { border-color: var(--gold); color: var(--gold-light); }
.btn-header {
  min-height: 38px;
  padding: 0 18px;
  border-color: rgba(200, 164, 106, 0.55);
  color: var(--gold);
  font-size: 13px;
}
.site-header.scrolled .btn-header { color: var(--gold-deep); }
.site-header.scrolled .brand-mark { color: var(--gold-deep); border-color: rgba(138, 106, 58, 0.7); }
.btn-header:hover { background: rgba(200, 164, 106, 0.12); }
.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}
.btn-outline-light:hover { border-color: var(--gold); color: var(--gold-light); }

.nav-toggle {
  display: none;
  position: relative;
  z-index: 140;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: transparent;
  cursor: pointer;
}
.nav-toggle span {
  position: absolute;
  left: 13px;
  width: 20px;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 22px; }
.nav-toggle span:nth-child(3) { top: 28px; }
.site-header.scrolled .nav-toggle { border-color: rgba(10, 22, 34, 0.2); }
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); background: #fff; }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); background: #fff; }
body.nav-open .nav-toggle { border-color: rgba(255, 255, 255, 0.35); }

.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 110;
  background: rgba(5, 12, 20, 0.55);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

/* =========================================================
   Hero
   ========================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-h) + 44px) 0 28px;
  overflow: hidden;
  background: #07111c;
  color: #fff;
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -3;
  background-image: var(--hero-img);
  background-size: cover;
  background-position: center 42%;
  animation: heroZoom 20s var(--ease) both;
  filter: saturate(0.92);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(6, 15, 24, 0.96) 0%, rgba(6, 15, 24, 0.84) 44%, rgba(6, 15, 24, 0.38) 100%),
    linear-gradient(180deg, rgba(6, 15, 24, 0.62) 0%, rgba(6, 15, 24, 0) 32%, rgba(6, 15, 24, 0.95) 100%);
}

.hero-frame {
  position: absolute;
  inset: calc(var(--header-h) + 14px) 18px 18px;
  z-index: -1;
  border: 1px solid rgba(200, 164, 106, 0.18);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 372px;
  align-items: end;
  gap: 64px;
  flex: 1;
  padding-top: 28px;
}

.hero-copy > * { animation: heroIn 0.9s var(--ease) both; }
.hero-copy > .hero-eyebrow { animation-delay: 0.1s; }
.hero-copy > h1 { animation-delay: 0.18s; }
.hero-copy > .hero-sub { animation-delay: 0.28s; }
.hero-copy > .hero-meta { animation-delay: 0.36s; }
.hero-copy > .hero-actions { animation-delay: 0.44s; }

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--gold-light);
  font-size: 12px;
  letter-spacing: 0.3em;
  margin-bottom: 26px;
}
.hero-eyebrow .rule { width: 46px; height: 1px; background: var(--gold); }

.hero h1 {
  margin: 0 0 26px;
  font-weight: 700;
}
.hero-name {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: clamp(30px, 3.2vw, 48px);
  line-height: 1.1;
  letter-spacing: 0.1em;
  color: var(--gold-light);
  margin-bottom: 14px;
}
.hero-name::before {
  content: "主讲";
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.18em;
  color: var(--gold-light);
  border: 1px solid rgba(200, 164, 106, 0.55);
  padding: 4px 8px;
  line-height: 1.4;
}
.hero-name::after {
  content: "";
  width: 54px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
}
.hero-course {
  display: block;
  font-size: clamp(42px, 5.6vw, 82px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  white-space: nowrap;
}
.hero-course .plus {
  color: var(--gold-light);
  font-weight: 400;
  margin: 0 0.18em;
}
.hero h1 .gold {
  color: var(--gold-light);
  background: linear-gradient(100deg, #b98f52 0%, #f0dcb4 48%, #c8a46a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  max-width: 640px;
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.hero-meta i {
  width: 1px; height: 12px;
  background: rgba(255, 255, 255, 0.28);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.hero-card {
  align-self: center;
  padding: 30px 28px 26px;
  background: rgba(10, 22, 34, 0.48);
  border: 1px solid rgba(200, 164, 106, 0.32);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  margin-bottom: 8px;
  position: relative;
}
.hero-card::before {
  content: "";
  position: absolute;
  top: -1px; left: -1px;
  width: 54px; height: 2px;
  background: var(--gold);
}
.hero-card-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--gold-light);
  font-size: 12px;
  letter-spacing: 0.24em;
}
.hero-card-label span {
  color: rgba(255, 255, 255, 0.4);
  font-size: 10px;
  letter-spacing: 0.2em;
}
.hero-card dl { margin: 4px 0 0; }
.hero-card dl div {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}
.hero-card dl div:last-child { border-bottom: 0; }
.hero-card dt { color: rgba(255, 255, 255, 0.55); font-size: 12px; letter-spacing: 0.06em; }
.hero-card dd { margin: 0; color: rgba(255, 255, 255, 0.88); font-size: 13px; line-height: 1.7; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid rgba(200, 164, 106, 0.28);
  margin-top: 44px;
  padding-top: 22px;
  gap: 12px;
  position: relative;
  z-index: 2;
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-num {
  font-size: 40px;
  line-height: 1;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.stat-num::after {
  content: "";
  display: inline-block;
  width: 5px; height: 5px;
  margin-left: 7px;
  background: var(--gold);
  vertical-align: 8px;
}
.stat-label { font-size: 12px; letter-spacing: 0.12em; color: rgba(255, 255, 255, 0.55); }

.scroll-hint {
  position: absolute;
  right: 34px;
  top: 52%;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: rgba(255, 255, 255, 0.45);
  font-size: 11px;
  letter-spacing: 0.2em;
  writing-mode: vertical-rl;
}
.scroll-hint i {
  width: 1px; height: 46px;
  background: linear-gradient(180deg, var(--gold), transparent);
}

/* =========================================================
   Section shell
   ========================================================= */
.section {
  position: relative;
  padding: 108px 0;
}
.section-tint { background: var(--paper-deep); }
.section-dark { background: var(--navy); color: #fff; }

.section-head { max-width: 900px; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  color: var(--gold-deep);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.26em;
}
.eyebrow span {
  display: inline-grid;
  place-items: center;
  min-width: 28px;
  height: 28px;
  padding: 0 6px;
  border: 1px solid rgba(200, 164, 106, 0.5);
  font-size: 11px;
  letter-spacing: 0.08em;
}
.eyebrow-light { color: var(--gold-light); }

.section h2 {
  font-size: clamp(32px, 4vw, 50px);
  line-height: 1.22;
  letter-spacing: -0.02em;
  font-weight: 700;
}
.lead {
  max-width: 780px;
  margin-top: 22px;
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--muted);
}
.section-dark .lead { color: rgba(255, 255, 255, 0.68); }

/* =========================================================
   01 Overview
   ========================================================= */
.overview-grid {
  display: grid;
  grid-template-columns: 332px minmax(0, 1fr);
  gap: 56px;
  margin-top: 64px;
}

.method-card {
  position: relative;
  align-self: start;
  padding: 38px 34px 32px;
  background: var(--navy);
  color: #fff;
  overflow: hidden;
}
.method-card::after {
  content: "";
  position: absolute;
  right: -60px; bottom: -80px;
  width: 200px; height: 200px;
  border: 1px solid rgba(200, 164, 106, 0.22);
  border-radius: 50%;
}
.method-label {
  color: var(--gold-light);
  font-size: 11px;
  letter-spacing: 0.24em;
  margin-bottom: 26px;
}
.method-line {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.6;
  color: #fff;
}
.method-line i { color: var(--gold); font-style: normal; margin: 0 2px; }
.method-text {
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14.5px;
  line-height: 1.9;
}
.method-foot {
  margin-top: 30px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.48);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.problem-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  padding: 0 0 12px 52px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.18em;
  border-bottom: 1px solid var(--line);
}
.problem-item {
  display: grid;
  grid-template-columns: 40px 1fr 1fr;
  gap: 28px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s, padding 0.25s;
}
.problem-item:hover { background: rgba(255, 255, 255, 0.55); }
.p-index {
  color: var(--gold-deep);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding-top: 2px;
}
.p-issue { font-size: 15px; color: var(--ink); line-height: 1.8; }
.p-fix {
  font-size: 15px;
  color: #3f4d59;
  line-height: 1.8;
  padding-left: 20px;
  border-left: 1px solid rgba(200, 164, 106, 0.55);
}

.method-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 74px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}
.flow-step { position: relative; padding-right: 16px; }
.flow-no {
  display: block;
  color: var(--gold-deep);
  font-size: 12px;
  letter-spacing: 0.18em;
  margin-bottom: 14px;
}
.flow-step h3 { font-size: 19px; margin-bottom: 10px; letter-spacing: 0.01em; }
.flow-step p { font-size: 14px; color: var(--muted); line-height: 1.85; }

/* =========================================================
   02 Architecture
   ========================================================= */
.architecture-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: 64px;
  margin-top: 64px;
  align-items: start;
}

.layer-map { display: flex; flex-direction: column; gap: 10px; }
.layer {
  width: var(--w, 100%);
  padding: 17px 22px 16px;
  background: rgba(10, 22, 34, 0.055);
  border-left: 2px solid rgba(200, 164, 106, 0.55);
  transition: background 0.25s, transform 0.25s var(--ease);
}
.layer:hover { background: rgba(10, 22, 34, 0.09); transform: translateX(4px); }
.layer-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}
.layer-name { font-size: 15px; font-weight: 600; letter-spacing: 0.04em; }
.layer-mod { font-size: 11px; color: var(--muted); letter-spacing: 0.1em; flex-shrink: 0; }
.layer p { margin-top: 7px; font-size: 13.5px; color: var(--muted); line-height: 1.75; }
.layer-strong {
  background: var(--navy);
  color: #fff;
  border-left-color: var(--gold);
}
.layer-strong .layer-mod { color: rgba(255, 255, 255, 0.5); }
.layer-strong p { color: rgba(255, 255, 255, 0.7); }
.layer-strong:hover { background: var(--navy-soft); }

.teach-lines { display: grid; gap: 20px; }
.line-card { padding: 34px 32px; border: 1px solid var(--line); background: #fff; }
.line-card .line-tag {
  color: var(--gold-deep);
  font-size: 11px;
  letter-spacing: 0.2em;
}
.line-card h3 { font-size: 21px; line-height: 1.5; margin: 16px 0 12px; }
.line-card p { font-size: 14px; color: var(--muted); line-height: 1.9; }
.line-dark { background: var(--navy); color: #fff; border-color: var(--navy); }
.line-dark .line-tag { color: var(--gold-light); }
.line-dark p { color: rgba(255, 255, 255, 0.72); }

/* =========================================================
   03 Modules
   ========================================================= */
.tabs {
  display: inline-flex;
  margin-top: 48px;
  border: 1px solid var(--line);
}
.tab {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  min-width: 210px;
  padding: 16px 28px 14px;
  background: transparent;
  border: 0;
  border-right: 1px solid var(--line);
  cursor: pointer;
  text-align: left;
  transition: background 0.25s, color 0.25s;
}
.tab:last-child { border-right: 0; }
.tab-kicker { font-size: 11px; letter-spacing: 0.18em; color: var(--muted); }
.tab-title { font-size: 15px; font-weight: 600; }
.tab:hover { background: rgba(255, 255, 255, 0.6); }
.tab.is-active { background: var(--navy); color: #fff; }
.tab.is-active .tab-kicker { color: var(--gold-light); }

.tab-panel { margin-top: 44px; }
.tab-panel[hidden] { display: none; }

.phase-head {
  display: grid;
  grid-template-columns: 64px 1fr;
  grid-template-areas: "no title" "no desc";
  column-gap: 20px;
  align-items: start;
  margin: 46px 0 10px;
  padding-left: 2px;
}
.phase-head:first-child { margin-top: 0; }
.phase-no {
  grid-area: no;
  color: var(--gold-deep);
  font-size: 11px;
  letter-spacing: 0.18em;
  padding-top: 8px;
  border-top: 1px solid var(--gold);
  padding-bottom: 6px;
}
.phase-head h3 { grid-area: title; font-size: 24px; letter-spacing: 0.01em; }
.phase-desc { grid-area: desc; margin-top: 6px; font-size: 14px; color: var(--muted); }

.module {
  border-top: 1px solid var(--line);
  background: transparent;
  transition: background 0.3s;
}
.module[open] { background: rgba(255, 255, 255, 0.72); }
.module summary {
  list-style: none;
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) 104px 20px;
  align-items: center;
  gap: 18px;
  padding: 21px 10px;
  cursor: pointer;
}
.module summary::-webkit-details-marker { display: none; }
.module summary:hover { background: rgba(255, 255, 255, 0.55); }
.m-no {
  font-size: 25px;
  line-height: 1;
  font-weight: 600;
  color: rgba(10, 22, 34, 0.3);
  font-variant-numeric: tabular-nums;
  transition: color 0.25s;
}
.module[open] .m-no,
.module summary:hover .m-no { color: var(--gold-deep); }
.m-main strong { display: block; font-size: 16.5px; line-height: 1.6; letter-spacing: 0.008em; }
.m-main em {
  display: block;
  margin-top: 4px;
  font-style: normal;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.65;
}
.m-tag {
  justify-self: end;
  padding: 4px 10px;
  border: 1px solid rgba(200, 164, 106, 0.5);
  color: var(--gold-deep);
  font-size: 11px;
  letter-spacing: 0.12em;
  white-space: nowrap;
}
.m-arrow { position: relative; width: 16px; height: 16px; }
.m-arrow::before,
.m-arrow::after {
  content: "";
  position: absolute;
  background: var(--muted);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.m-arrow::before { left: 3px; top: 7.5px; width: 10px; height: 1.5px; }
.m-arrow::after { left: 7.5px; top: 3px; width: 1.5px; height: 10px; }
.module[open] .m-arrow::after { transform: scaleY(0); opacity: 0; }

.m-body {
  padding: 2px 36px 30px 86px;
  animation: panelIn 0.4s var(--ease) both;
}
.m-cols {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.95fr);
  gap: 44px;
  padding-top: 18px;
  border-top: 1px dashed rgba(10, 22, 34, 0.14);
}
.m-cols h4 {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold-deep);
  margin-bottom: 12px;
  font-weight: 600;
}
.m-cols ul { list-style: none; display: grid; gap: 9px; }
.m-cols li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: #40505d;
  line-height: 1.8;
}
.m-cols li::before {
  content: "";
  position: absolute;
  left: 0; top: 10px;
  width: 4px; height: 4px;
  background: var(--gold);
}
.m-side {
  padding: 20px 22px;
  background: var(--paper);
  border-left: 2px solid rgba(200, 164, 106, 0.5);
}
.m-side p {
  font-size: 13.5px;
  color: #40505d;
  line-height: 1.8;
  margin-bottom: 10px;
}
.m-side p:last-child { margin-bottom: 0; }
.m-side p span {
  display: inline-block;
  min-width: 36px;
  margin-right: 8px;
  color: var(--gold-deep);
  font-size: 11px;
  letter-spacing: 0.1em;
}

/* =========================================================
   04 Platforms (dark)
   ========================================================= */
.section-dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}
.section-dark .container { position: relative; z-index: 1; }

.mind-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 60px;
  border-top: 1px solid var(--line-dark);
}
.mind-card {
  padding: 32px 34px 12px 0;
  border-right: 1px solid var(--line-dark);
  margin-right: 34px;
}
.mind-card:last-child { border-right: 0; margin-right: 0; padding-right: 0; }
.mind-no {
  color: var(--gold-light);
  font-size: 11px;
  letter-spacing: 0.2em;
}
.mind-card h3 {
  font-size: 20px;
  line-height: 1.55;
  margin: 18px 0 14px;
  color: #fff;
}
.mind-card p { font-size: 14px; line-height: 1.9; color: rgba(255, 255, 255, 0.66); }

.platform-table-wrap,
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.platform-table-wrap { margin-top: 64px; }

.data-table { font-size: 14px; min-width: 620px; }
.data-table caption { text-align: left; }
.data-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  padding: 0 18px 14px;
}
.data-table td { padding: 18px; vertical-align: top; line-height: 1.8; }
.data-table-dark th {
  color: var(--gold-light);
  border-bottom: 1px solid rgba(200, 164, 106, 0.4);
}
.data-table-dark td { border-bottom: 1px solid var(--line-dark); color: rgba(255, 255, 255, 0.72); }
.data-table-dark td strong { color: #fff; font-weight: 600; }
.data-table-dark tbody tr:hover td { background: rgba(255, 255, 255, 0.03); }

.identity-block {
  margin-top: 88px;
  padding-top: 64px;
  border-top: 1px solid var(--line-dark);
}
.identity-head { max-width: 860px; }
.identity-head h3 {
  font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.identity-head > p {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 15.5px;
  line-height: 1.9;
}

.identity-platforms {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 42px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}
.id-card { padding: 22px 22px 20px; background: var(--navy); }
.id-card h4 { font-size: 15px; color: var(--gold-light); margin-bottom: 7px; letter-spacing: 0.04em; }
.id-card p { font-size: 13px; line-height: 1.75; color: rgba(255, 255, 255, 0.62); }

.sop-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin-top: 36px;
  padding: 20px 0 4px;
  border-top: 1px dashed rgba(255, 255, 255, 0.14);
}
.sop-row span {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.78);
}
.sop-row i {
  display: grid;
  place-items: center;
  width: 22px; height: 22px;
  border: 1px solid rgba(200, 164, 106, 0.5);
  border-radius: 50%;
  color: var(--gold-light);
  font-style: normal;
  font-size: 11px;
}

.identity-block .platform-table-wrap { margin-top: 40px; }

/* =========================================================
   AI tools & models
   ========================================================= */
.tool-list {
  margin-top: 48px;
  border-top: 1px solid var(--line);
}
.tool-row {
  display: grid;
  grid-template-columns: 200px 1fr 1.15fr;
  gap: 0 34px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.25s var(--ease);
}
.tool-row:hover { background: rgba(255, 255, 255, 0.5); }
.tool-id {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 16px;
}
.tool-id::before {
  content: "";
  position: absolute;
  left: 0; top: 5px;
  width: 2px;
  height: calc(100% - 10px);
  background: var(--gold);
}
.tool-no {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--gold-deep);
}
.tool-id strong { font-size: 20px; line-height: 1.3; letter-spacing: -0.01em; }
.tool-id em { font-style: normal; font-size: 12px; color: var(--muted); }
.tool-cell span {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-deep);
}
.tool-cell p { font-size: 13.5px; line-height: 1.85; color: #40505d; }

.model-panel {
  margin-top: 56px;
  padding: 44px 40px 38px;
  background: var(--navy);
  color: #fff;
}
.model-head { max-width: 820px; }
.model-kicker {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold-light);
}
.model-head h3 {
  margin: 12px 0 10px;
  font-size: clamp(23px, 2.6vw, 30px);
  line-height: 1.35;
}
.model-head p { font-size: 13.5px; line-height: 1.85; color: rgba(255, 255, 255, 0.6); }

.model-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  margin-top: 32px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.1);
  list-style: none;
}
.model-grid li { padding: 20px 18px; background: var(--navy); }
.model-grid strong {
  display: block;
  font-size: 15px;
  color: var(--gold-light);
  letter-spacing: 0.01em;
}
.model-grid span {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.42);
}
.model-grid p {
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.66);
}
.model-note {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px dashed rgba(255, 255, 255, 0.14);
  font-size: 12.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.52);
}
.model-note strong { color: var(--gold-light); font-weight: 600; }

/* =========================================================
   AD 视频号外贸获客
   ========================================================= */
.section-ad { padding: 64px 0 96px; }
.ad-card {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 44px;
  padding: 52px 48px 48px;
  background: linear-gradient(135deg, #10202f 0%, var(--navy) 55%, #0d1b29 100%);
  color: #fff;
  border: 1px solid rgba(200, 164, 106, 0.35);
  overflow: hidden;
}
.ad-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold) 30%, var(--gold-light) 70%, transparent);
}
.ad-tag {
  position: absolute;
  top: 18px; right: 22px;
  padding: 3px 10px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: rgba(255, 255, 255, 0.55);
}
.ad-kicker {
  font-size: 11.5px;
  letter-spacing: 0.22em;
  color: var(--gold-light);
  margin-bottom: 16px;
}
.ad-card .ad-title {
  font-size: clamp(26px, 2.8vw, 34px);
  line-height: 1.4;
  letter-spacing: -0.01em;
  font-weight: 700;
}
.ad-gold {
  background: linear-gradient(120deg, var(--gold), var(--gold-light));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.ad-text {
  margin-top: 16px;
  max-width: 640px;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.68);
}
.ad-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
  list-style: none;
}
.ad-points li {
  padding: 7px 14px;
  border: 1px solid rgba(200, 164, 106, 0.4);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--gold-light);
}
.ad-cta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  padding-left: 40px;
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}
.btn-ad {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 22px;
  background: linear-gradient(120deg, var(--gold), var(--gold-light));
  color: #1a1206;
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: filter 0.2s, transform 0.2s;
}
.btn-ad:hover { filter: brightness(1.06); transform: translateY(-2px); }
.ad-wechat {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.78);
  text-align: center;
  letter-spacing: 0.05em;
}
.ad-note {
  font-size: 11px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.38);
  text-align: center;
}

/* =========================================================
   05 Schedule
   ========================================================= */
.stage-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.stage-card { padding-top: 20px; border-top: 2px solid var(--gold); }
.stage-card span { font-size: 11px; letter-spacing: 0.18em; color: var(--gold-deep); }
.stage-card h3 { font-size: 21px; margin: 12px 0 9px; }
.stage-card p { font-size: 13.5px; color: var(--muted); line-height: 1.8; }

.table-wrap { margin-top: 40px; }
.data-table:not(.data-table-dark) th {
  color: var(--navy);
  background: rgba(10, 22, 34, 0.04);
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}
.data-table:not(.data-table-dark) td {
  border-bottom: 1px solid var(--line);
  color: #40505d;
}
.data-table:not(.data-table-dark) td strong { color: var(--navy); }
.data-table:not(.data-table-dark) tbody tr:hover td { background: rgba(255, 255, 255, 0.55); }

.schedule-table td:first-child { width: 96px; white-space: nowrap; }
.table-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.8;
}

.slim-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
  gap: 44px;
  margin-top: 48px;
}
.slim-main { padding-top: 8px; }
.slim-main h3 { font-size: 26px; line-height: 1.45; margin-bottom: 14px; }
.slim-main > p { color: var(--muted); font-size: 15px; line-height: 1.9; }
.slim-main ul { list-style: none; margin-top: 26px; display: grid; gap: 12px; }
.slim-main li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  color: #40505d;
  line-height: 1.85;
}
.slim-main li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 7px; height: 7px;
  border: 1px solid var(--gold-deep);
  transform: rotate(45deg);
}
.slim-side {
  padding: 32px 30px;
  background: var(--navy);
  color: #fff;
  align-self: start;
}
.slim-label {
  color: var(--gold-light);
  font-size: 11px;
  letter-spacing: 0.2em;
  margin-bottom: 8px;
}
.slim-side > p:not(.slim-label) {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  line-height: 1.85;
  margin-bottom: 22px;
}
.slim-side > p:last-child { margin-bottom: 0; }

.role-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.role-card {
  padding: 30px 28px;
  border: 1px solid var(--line);
  background: #fff;
  transition: transform 0.3s var(--ease), box-shadow 0.3s;
}
.role-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.role-days { font-size: 12px; letter-spacing: 0.16em; color: var(--gold-deep); }
.role-card h3 { font-size: 23px; margin: 12px 0 8px; }
.role-modules {
  font-size: 12.5px;
  color: var(--gold-deep);
  letter-spacing: 0.04em;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.role-card p:last-child { margin-top: 12px; font-size: 13.5px; color: var(--muted); line-height: 1.8; }

/* =========================================================
   06 Delivery & assessment
   ========================================================= */
.deliver-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 48px;
  margin-top: 56px;
  border-top: 1px solid var(--line);
}
.deliver-item {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  align-items: baseline;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.deliver-item span {
  color: var(--gold-deep);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.deliver-item p { font-size: 14.5px; line-height: 1.7; color: var(--ink); }
.deliver-item em {
  font-style: normal;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.assessment {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 56px;
  margin-top: 84px;
  padding-top: 60px;
  border-top: 1px solid var(--line);
}
.assess-head h3 { font-size: 30px; margin-bottom: 12px; }
.assess-head > p { color: var(--muted); font-size: 14.5px; line-height: 1.85; max-width: 340px; }
.bars { display: grid; gap: 18px; align-content: center; }
.bar-row {
  display: grid;
  grid-template-columns: 140px 1fr 52px;
  align-items: center;
  gap: 18px;
}
.bar-label { font-size: 13.5px; color: var(--ink); }
.bar-track { height: 7px; background: rgba(10, 22, 34, 0.1); }
.bar-track i {
  display: block;
  height: 100%;
  width: var(--pct, 0%);
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-light));
}
.bar-value { font-size: 13.5px; font-weight: 600; color: var(--gold-deep); text-align: right; }

.assess-notes {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 44px;
  margin-top: 18px;
}
.assess-notes p { font-size: 13px; color: var(--muted); line-height: 1.8; }
.assess-notes strong { color: var(--ink); font-weight: 600; }

.materials {
  margin-top: 76px;
  padding-top: 44px;
  border-top: 1px solid var(--line);
}
.materials h3 { font-size: 22px; }
.materials-lead { margin-top: 8px; font-size: 13.5px; color: var(--muted); }
.material-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.material-tags span {
  padding: 8px 16px;
  border: 1px solid rgba(10, 22, 34, 0.16);
  background: rgba(255, 255, 255, 0.5);
  font-size: 12.5px;
  color: #40505d;
  letter-spacing: 0.03em;
}

/* =========================================================
   07 FAQ
   ========================================================= */
.faq-list { max-width: 920px; margin-top: 52px; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  list-style: none;
  display: grid;
  grid-template-columns: 44px 1fr 18px;
  align-items: center;
  gap: 16px;
  padding: 24px 6px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  transition: color 0.2s, background 0.2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--gold-deep); background: rgba(255, 255, 255, 0.5); }
.faq-item summary span {
  color: var(--gold-deep);
  font-size: 11px;
  letter-spacing: 0.12em;
  font-weight: 600;
}
.faq-item summary i { position: relative; width: 16px; height: 16px; }
.faq-item summary i::before,
.faq-item summary i::after {
  content: "";
  position: absolute;
  background: var(--muted);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.faq-item summary i::before { left: 3px; top: 7.5px; width: 10px; height: 1.5px; }
.faq-item summary i::after { left: 7.5px; top: 3px; width: 1.5px; height: 10px; }
.faq-item[open] summary i::after { transform: scaleY(0); opacity: 0; }
.faq-item > p {
  padding: 0 70px 26px 60px;
  font-size: 14.5px;
  color: var(--muted);
  line-height: 1.95;
  animation: panelIn 0.4s var(--ease) both;
}

/* =========================================================
   08 Pricing
   ========================================================= */
.section-pricing { background: var(--paper-deep); }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 56px;
  align-items: stretch;
}
.price-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 32px 26px 28px;
  background: var(--paper);
  border: 1px solid rgba(10, 22, 34, 0.1);
  transition: transform 0.3s var(--ease), box-shadow 0.3s;
}
.price-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.price-type { font-size: 13px; letter-spacing: 0.1em; color: var(--muted); }
.price-amount {
  margin: 18px 0 16px;
  font-size: 34px;
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--navy);
  font-variant-numeric: tabular-nums;
}
.price-amount span {
  display: block;
  margin-top: 8px;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.price-desc { font-size: 13.5px; line-height: 1.85; color: #40505d; }
.price-fit {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
}
.price-card-featured {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
  transform: translateY(-14px);
  box-shadow: 0 26px 60px rgba(10, 22, 34, 0.18);
}
.price-card-featured:hover { transform: translateY(-18px); }
.price-badge {
  position: absolute;
  top: -1px; right: 22px;
  padding: 4px 10px;
  background: var(--gold);
  color: var(--navy);
  font-size: 10px;
  letter-spacing: 0.12em;
}
.price-card-featured .price-type { color: var(--gold-light); }
.price-card-featured .price-amount { color: #fff; }
.price-card-featured .price-amount span { color: rgba(255, 255, 255, 0.55); }
.price-card-featured .price-desc { color: rgba(255, 255, 255, 0.76); }
.price-card-featured .price-fit {
  border-top-color: rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.58);
}

.price-notes {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 36px;
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid rgba(10, 22, 34, 0.14);
}
.price-notes p { font-size: 12.5px; line-height: 1.85; color: var(--muted); }
.price-notes strong { color: var(--ink); }

/* =========================================================
   09 Instructor
   ========================================================= */
.instructor-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 64px;
  align-items: start;
}
.instructor-card {
  position: relative;
  padding: 44px 40px 38px;
  background: var(--navy);
  color: #fff;
  overflow: hidden;
}
.instructor-card::after {
  content: "GEO";
  position: absolute;
  right: -18px; bottom: -26px;
  font-size: 118px;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}
.instructor-label { color: var(--gold-light); font-size: 11px; letter-spacing: 0.24em; }
.instructor-name {
  font-size: 46px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 22px 0 4px;
}
.instructor-role { color: rgba(255, 255, 255, 0.72); font-size: 14px; letter-spacing: 0.04em; }
.instructor-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 24px;
}
.instructor-meta span {
  padding: 5px 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 11px;
  color: rgba(255, 255, 255, 0.62);
  letter-spacing: 0.06em;
}
.instructor-note {
  font-size: 13px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.6);
  max-width: 320px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.section-head-compact { max-width: none; }
.section-head-compact h3 { font-size: 27px; line-height: 1.4; }
.startup-notes { padding-top: 6px; }
.notes-list {
  list-style: none;
  margin-top: 32px;
  border-top: 1px solid var(--line);
}
.notes-list li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 18px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}
.notes-list span { color: var(--gold-deep); font-size: 12px; font-weight: 600; padding-top: 2px; }
.notes-list p { font-size: 14px; line-height: 1.85; color: #40505d; }
.notes-list strong { color: var(--ink); }

/* =========================================================
   Final CTA + footer
   ========================================================= */
.final-cta {
  position: relative;
  padding: 112px 0;
  background: var(--navy);
  color: #fff;
  overflow: hidden;
  text-align: center;
}
.final-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(200, 164, 106, 0.2), transparent 45%),
    radial-gradient(circle at 82% 70%, rgba(22, 50, 74, 0.8), transparent 55%);
}
.final-cta::before {
  content: "";
  position: absolute;
  inset: 24px;
  border: 1px solid rgba(200, 164, 106, 0.18);
  pointer-events: none;
}
.final-inner { position: relative; z-index: 1; }
.final-kicker {
  color: var(--gold-light);
  font-size: 11px;
  letter-spacing: 0.24em;
  margin-bottom: 22px;
}
.final-cta h2 {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.35;
  letter-spacing: -0.015em;
}
.final-text {
  max-width: 680px;
  margin: 20px auto 0;
  color: rgba(255, 255, 255, 0.64);
  font-size: 15px;
  line-height: 1.9;
}
.final-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.site-footer { background: #060f18; color: rgba(255, 255, 255, 0.62); }
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 46px 0 30px;
}
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand p { font-size: 14px; color: rgba(255, 255, 255, 0.82); }
.footer-sub { margin-top: 4px; font-size: 11.5px; color: rgba(255, 255, 255, 0.4) !important; letter-spacing: 0.06em; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 10px 24px; }
.footer-nav a { font-size: 12.5px; color: rgba(255, 255, 255, 0.52); transition: color 0.2s; }
.footer-nav a:hover { color: var(--gold-light); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.32);
}
.footer-bottom a:hover { color: var(--gold-light); }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 28px;
  padding: 0 0 30px;
  font-size: 11.5px;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.56);
}
.footer-copy { color: rgba(255, 255, 255, 0.82); }
.footer-legal a {
  color: rgba(255, 255, 255, 0.62);
  border-bottom: 1px solid rgba(200, 164, 106, 0.3);
  padding-bottom: 1px;
  transition: color 0.2s, border-color 0.2s;
}
.footer-legal a:hover { color: var(--gold-light); border-color: var(--gold-light); }
.footer-icp, .footer-contact { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; }
.footer-legal .sep { color: rgba(200, 164, 106, 0.42); }

/* =========================================================
   Motion
   ========================================================= */
@keyframes heroZoom {
  from { transform: scale(1.07); }
  to { transform: scale(1); }
}
@keyframes heroIn {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes panelIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.js .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }

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

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1180px) {
  .hero-inner { grid-template-columns: minmax(0, 1fr) 330px; gap: 44px; }
  .nav { gap: 22px; }
  .problem-item { grid-template-columns: 36px 1fr 1fr; gap: 22px; }
  .p-fix { padding-left: 16px; }
  .scroll-hint { display: none; }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  .price-card-featured { transform: none; }
  .price-card-featured:hover { transform: translateY(-4px); }
}

@media (max-width: 1080px) {
  .nav { display: none; }
  .nav-toggle { display: block; }
  .site-header.scrolled .nav-toggle span { background: var(--ink); }
  body.nav-open .site-header { background: transparent; box-shadow: none; color: #fff; }
  body.nav-open .nav-toggle span { background: #fff !important; }

  .nav.is-open {
    display: flex;
    position: fixed;
    top: 0; right: 0; bottom: 0;
    z-index: 120;
    width: min(380px, 86vw);
    padding: 116px 36px 44px;
    background: var(--navy);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    overflow-y: auto;
  }
  .nav.is-open a {
    width: 100%;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 16px;
    color: #fff;
    opacity: 0.9;
  }
  .nav.is-open a::after { display: none; }
  .nav.is-open a:hover,
  .nav.is-open a.active { color: var(--gold-light); opacity: 1; }

  .hero-inner { grid-template-columns: minmax(0, 1fr) 300px; gap: 32px; }
  .hero-course { font-size: clamp(44px, 5.6vw, 66px); }
  .hero-name { font-size: clamp(30px, 3.6vw, 38px); }
  .hero-card { padding: 24px 22px 22px; }
  .hero-card dl div { grid-template-columns: 66px 1fr; gap: 10px; }
  .hero-stats { margin-top: 36px; }
  .stat-num { font-size: 34px; }

  .overview-grid { grid-template-columns: 1fr; gap: 36px; }
  .method-card { max-width: none; }
  .architecture-grid { grid-template-columns: 1fr; gap: 40px; }
  .layer { width: 100%; }

  .mind-grid { grid-template-columns: 1fr; border-top: 0; }
  .mind-card {
    border-right: 0;
    border-top: 1px solid var(--line-dark);
    margin-right: 0;
    padding: 28px 0 8px;
  }
  .identity-platforms { grid-template-columns: repeat(2, 1fr); }
  .role-grid { grid-template-columns: repeat(2, 1fr); }
  .assessment { grid-template-columns: 1fr; gap: 32px; }
  .assess-head > p { max-width: none; }
  .instructor-grid { grid-template-columns: 1fr; gap: 40px; }
  .instructor-card { max-width: none; }
  .tool-row { grid-template-columns: 170px 1fr 1.1fr; gap: 0 24px; }
  .model-panel { padding: 38px 30px 32px; }
}

@media (max-width: 860px) {
  .section { padding: 76px 0; }
  .container { width: calc(100% - 40px); }
  .header-inner { height: 70px; }
  :root { --header-h: 70px; }

  .hero { min-height: auto; padding-top: calc(var(--header-h) + 64px); padding-bottom: 34px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-frame { inset: calc(var(--header-h) + 10px) 10px 10px; }
  .hero-course { font-size: clamp(38px, 7.6vw, 58px); }
  .hero-name { font-size: clamp(28px, 4.2vw, 34px); margin-bottom: 10px; }
  .hero-eyebrow { font-size: 11px; letter-spacing: 0.22em; margin-bottom: 20px; }
  .hero-actions { margin-top: 30px; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 18px 10px; }
  .hero-card { display: none; }

  .method-flow { grid-template-columns: repeat(2, 1fr); gap: 30px 24px; margin-top: 52px; }
  .problem-head { display: none; }
  .problem-item { grid-template-columns: 32px 1fr; padding: 18px 0; }
  .problem-item .p-fix {
    grid-column: 2;
    padding-left: 0;
    border-left: 0;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed rgba(200, 164, 106, 0.5);
    font-size: 14px;
  }
  .problem-item .p-fix::before {
    content: "解法 · ";
    color: var(--gold-deep);
    font-size: 11px;
    letter-spacing: 0.1em;
  }

  .tabs { width: 100%; }
  .tab { flex: 1; min-width: 0; padding: 14px 18px; }
  .module summary { grid-template-columns: 44px minmax(0, 1fr) 18px; gap: 12px; }
  .m-tag { display: none; }
  .m-body { padding-left: 8px; padding-right: 8px; }
  .m-cols { grid-template-columns: 1fr; gap: 24px; }
  .m-main strong { font-size: 15.5px; }
  .m-main em { font-size: 12px; }

  .tool-row { grid-template-columns: 1fr; gap: 10px; padding: 22px 0; }
  .tool-id { flex-direction: row; flex-wrap: wrap; align-items: baseline; gap: 0 10px; }
  .model-grid { grid-template-columns: repeat(2, 1fr); }
  .model-panel { margin-top: 40px; }
  .ad-card { grid-template-columns: 1fr; gap: 30px; padding: 42px 32px 36px; }
  .ad-cta { padding-left: 0; padding-top: 26px; border-left: 0; border-top: 1px solid rgba(255, 255, 255, 0.12); align-items: flex-start; }
  .btn-ad { width: 100%; }
  .ad-wechat, .ad-note { text-align: left; }

  .stage-strip { grid-template-columns: 1fr; gap: 22px; }
  .stage-card { padding-top: 16px; }
  .data-table { min-width: 0; }
  .schedule-table thead { display: none; }
  .schedule-table,
  .schedule-table tbody { display: block; }
  .schedule-table tr {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 4px 14px;
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
  }
  .schedule-table td { display: block; padding: 0; border: 0 !important; }
  .schedule-table td:first-child { grid-row: 1 / span 2; width: auto; padding-top: 2px !important; }
  .schedule-table td::before {
    content: attr(data-label);
    display: inline-block;
    min-width: 40px;
    margin-right: 8px;
    color: var(--gold-deep);
    font-size: 10px;
    letter-spacing: 0.1em;
  }
  .schedule-table td:first-child::before { display: none; }
  .schedule-table tr:hover td { background: transparent !important; }

  .slim-grid { grid-template-columns: 1fr; gap: 28px; }
  .role-grid { grid-template-columns: 1fr; }
  .deliver-grid { grid-template-columns: 1fr; }
  .deliver-item { grid-template-columns: 38px 1fr; }
  .deliver-item em { grid-column: 2; margin-top: -4px; }
  .bar-row { grid-template-columns: 108px 1fr 46px; gap: 14px; }
  .assess-notes { grid-template-columns: 1fr; gap: 8px; }
  .pricing-grid { grid-template-columns: 1fr; }
  .price-notes { grid-template-columns: 1fr; gap: 14px; }
  .price-amount { font-size: 30px; }
  .instructor-name { font-size: 38px; }
  .instructor-card { padding: 34px 28px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 26px; padding: 36px 0 24px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
  .footer-legal { flex-direction: column; align-items: flex-start; gap: 8px; }
  .footer-contact { flex-direction: column; align-items: flex-start; gap: 4px; }
  .footer-contact .sep { display: none; }
  .identity-platforms { grid-template-columns: 1fr 1fr; }
  .final-cta { padding: 80px 0; }
  .final-cta::before { inset: 12px; }
}

@media (max-width: 560px) {
  .container { width: calc(100% - 32px); }
  .brand-text em { display: none; }
  .brand-text strong { font-size: 13.5px; }
  .btn-header { display: none; }
  .hero-course { font-size: clamp(31px, 8.4vw, 42px); }
  .hero-name { font-size: 28px; gap: 10px; }
  .hero-name::before { font-size: 10px; padding: 3px 6px; letter-spacing: 0.14em; }
  .hero-name::after { display: none; }
  .hero-sub { font-size: 15px; }
  .hero-meta { font-size: 12px; gap: 8px 10px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 18px 8px; }
  .stat-num { font-size: 30px; }
  .stat-label { font-size: 11px; }
  .section h2 { font-size: 28px; }
  .lead { font-size: 15px; }
  .method-card { padding: 30px 24px 26px; }
  .method-line { font-size: 19px; }
  .flow-step h3 { font-size: 17px; }
  .tab { padding: 12px 14px; }
  .tab-title { font-size: 13px; }
  .phase-head { grid-template-columns: 1fr; grid-template-areas: "no" "title" "desc"; row-gap: 6px; margin-top: 36px; }
  .phase-no { border-top: 0; padding-top: 0; }
  .m-body { padding-bottom: 24px; }
  .m-cols li { font-size: 13.5px; }
  .identity-platforms { grid-template-columns: 1fr; }
  .model-panel { padding: 30px 22px 26px; }
  .model-grid { grid-template-columns: 1fr; margin-top: 26px; }
  .model-grid li { padding: 16px 16px; }
  .section-ad { padding: 44px 0 64px; }
  .ad-card { padding: 34px 22px 28px; gap: 24px; }
  .ad-card .ad-title { font-size: clamp(22px, 6.4vw, 27px); }
  .ad-tag { top: 14px; right: 16px; letter-spacing: 0.18em; }
  .sop-row { gap: 10px 18px; }
  .deliver-item p { font-size: 13.5px; }
  .bar-row { grid-template-columns: 1fr 44px; }
  .bar-label { grid-column: 1 / -1; margin-bottom: -6px; }
  .price-card { padding: 26px 22px 24px; }
  .faq-item summary { grid-template-columns: 36px 1fr 18px; gap: 12px; font-size: 15px; padding: 20px 2px; }
  .faq-item > p { padding: 0 6px 22px 48px; font-size: 13.5px; }
  .notes-list li { grid-template-columns: 32px 1fr; gap: 12px; }
  .material-tags span { font-size: 12px; }
  .final-actions { flex-direction: column; }
  .final-actions .btn { width: 100%; }
}

/* Print */
@media print {
  .site-header, .nav-toggle, .hero-media, .hero-overlay, .scroll-hint, .scroll-progress, .final-cta, .site-footer { display: none !important; }
  .hero { min-height: auto; color: #000; background: #fff; }
  .hero h1 .gold { -webkit-text-fill-color: #000; color: #000; }
  .section-dark { background: #fff; color: #000; }
  .js .reveal { opacity: 1; transform: none; }
  .module { break-inside: avoid; }
}