:root {
  --brand: #ffb400;
  --brand-deep: #e69e00;
  --brand-soft: #fff3d6;
  --accent: #0fa3b1;
  --accent-soft: #e7f7f8;
  --ink: #172033;
  --muted: #687084;
  --line: #eee5d2;
  --paper: #fffbf2;
  --white: #fff;
  --shadow: 0 24px 70px rgba(53, 42, 17, .10);
  --radius: 22px;
  --max: 1200px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
.site-wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--brand-deep);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 22px; height: 2px; background: var(--brand); }
.rich-text p:first-child { margin-top: 0; }
.rich-text p:last-child { margin-bottom: 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 251, 242, .88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: background .2s, border-color .2s, box-shadow .2s;
}
.site-header.scrolled { background: rgba(255, 255, 255, .96); border-color: var(--line); box-shadow: 0 8px 30px rgba(40, 31, 10, .05); }
.header-inner { min-height: 76px; display: flex; align-items: center; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 13px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, #ffbd1a, #ffd875);
  color: #332500; font-size: 21px; font-weight: 900;
  box-shadow: 0 9px 22px rgba(255, 180, 0, .3);
}
.brand-copy strong, .brand-copy small { display: block; }
.brand-copy strong { font-size: 20px; line-height: 1.2; letter-spacing: -.02em; }
.brand-copy small { color: var(--muted); font-size: 10px; line-height: 1.5; letter-spacing: .02em; }
.desktop-nav { display: flex; align-items: center; gap: 24px; margin-left: auto; }
.desktop-nav a { color: #454c5d; font-size: 14px; white-space: nowrap; position: relative; }
.desktop-nav a:hover, .desktop-nav a.active { color: var(--ink); }
.desktop-nav a.active::after {
  content: ""; position: absolute; left: 50%; bottom: -13px;
  width: 20px; height: 3px; border-radius: 9px; background: var(--brand); transform: translateX(-50%);
}
.header-actions { display: flex; align-items: center; gap: 9px; }
.phone-link { font-size: 13px; font-weight: 700; color: #4c5261; white-space: nowrap; }
.text-action { padding: 8px 9px; font-size: 13px; color: #4c5261; white-space: nowrap; }
.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 24px; border-radius: 13px;
  border: 1px solid transparent; font-size: 15px; font-weight: 700;
  transition: transform .16s, box-shadow .16s, background .16s;
}
.button:hover { transform: translateY(-1px); }
.button-primary { background: var(--brand); color: #2e2200; box-shadow: 0 10px 25px rgba(255, 180, 0, .26); }
.button-primary:hover { background: #ffc126; box-shadow: 0 14px 34px rgba(255, 180, 0, .32); }
.button-soft { background: var(--brand-soft); color: #8b6100; }
.button-ghost { border-color: rgba(23, 32, 51, .14); background: rgba(255, 255, 255, .7); color: var(--ink); }
.button-small { min-height: 38px; padding: 0 15px; border-radius: 10px; font-size: 13px; }
.button-wide { width: 100%; }
.menu-toggle { display: none; width: 42px; height: 42px; border: 0; background: transparent; padding: 10px; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--ink); border-radius: 2px; }
.mobile-panel {
  border-top: 1px solid var(--line); background: #fff;
  padding: 14px 24px 22px; display: grid; gap: 3px;
}
.mobile-panel a { padding: 11px 8px; font-size: 15px; }
.mobile-panel .mobile-primary { background: var(--brand); border-radius: 10px; text-align: center; font-weight: 700; }

.hero-section {
  position: relative;
  overflow: hidden;
  padding: 74px 0 34px;
  background:
    radial-gradient(circle at 8% 5%, rgba(255, 214, 102, .35), transparent 26%),
    radial-gradient(circle at 90% 20%, rgba(15, 163, 177, .11), transparent 30%),
    var(--paper);
}
.hero-section::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(65, 49, 15, .12) .7px, transparent .7px);
  background-size: 22px 22px; opacity: .22; pointer-events: none;
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(6px); pointer-events: none; }
.hero-glow-one { width: 260px; height: 260px; right: 5%; top: 6%; background: rgba(255, 209, 82, .17); }
.hero-glow-two { width: 200px; height: 200px; left: 4%; bottom: 6%; background: rgba(15, 163, 177, .07); }
.hero-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(480px, .95fr);
  align-items: center; gap: 54px;
}
.hero-copy h1 {
  max-width: 650px; margin: 0 0 22px;
  font-size: clamp(44px, 5.1vw, 72px); line-height: 1.08; letter-spacing: -.055em;
}
.hero-subtitle { max-width: 590px; color: #535b6d; font-size: 18px; line-height: 1.9; }
.hero-subtitle p { margin: 0; }
.hero-actions, .cta-actions { display: flex; flex-wrap: wrap; gap: 13px; align-items: center; }
.hero-actions { margin-top: 30px; }
.hero-proof { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 34px; color: var(--muted); font-size: 13px; }
.hero-proof span { display: flex; align-items: center; gap: 7px; }
.hero-proof span::before { content: "✓"; width: 19px; height: 19px; border-radius: 50%; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); font-size: 11px; font-weight: 800; }
.hero-proof b { color: var(--ink); }
.hero-visual { position: relative; min-height: 460px; }
.dashboard-card {
  position: absolute; inset: 28px 16px 28px 30px;
  display: flex; overflow: hidden; border-radius: 22px;
  border: 1px solid rgba(255,255,255,.75);
  background: rgba(255, 255, 255, .88);
  box-shadow: var(--shadow);
  transform: rotate(-1.2deg);
}
.mock-sidebar { width: 74px; padding: 16px 12px; background: #1f2838; display: flex; align-items: center; flex-direction: column; gap: 13px; }
.mock-brand { width: 32px; height: 32px; border-radius: 10px; display: grid; place-items: center; background: var(--brand); color: #392800; font-weight: 900; }
.mock-sidebar i { width: 30px; height: 6px; border-radius: 9px; background: rgba(255,255,255,.2); }
.mock-sidebar i:nth-of-type(2) { background: var(--brand); width: 35px; }
.mock-main { flex: 1; padding: 18px 20px; }
.mock-top { display: flex; justify-content: flex-end; gap: 7px; }
.mock-top span { width: 28px; height: 7px; border-radius: 9px; background: #e5e8ee; }
.mock-title { margin: 25px 0 15px; font-size: 19px; font-weight: 800; }
.mock-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.mock-stats span { border-radius: 12px; padding: 13px; background: #f8f5ed; }
.mock-stats b, .mock-stats small { display: block; }
.mock-stats b { font-size: 16px; }
.mock-stats small { margin-top: 4px; color: #9a9fae; font-size: 9px; }
.mock-chart { height: 125px; margin-top: 15px; display: flex; align-items: end; gap: 9px; padding: 15px 16px 0; background: #fbfaf7; border-radius: 13px; }
.mock-chart i { flex: 1; border-radius: 7px 7px 0 0; background: linear-gradient(180deg, var(--accent), #99dfe4); }
.mock-lines { margin-top: 13px; display: grid; gap: 7px; }
.mock-lines i { height: 8px; border-radius: 5px; background: #eef0f4; }
.mock-lines i:nth-child(2) { width: 75%; }
.phone-card {
  position: absolute; width: 170px; padding: 14px; border-radius: 24px;
  background: #fff; border: 5px solid #1e2838; box-shadow: 0 22px 55px rgba(27, 35, 50, .22);
}
.phone-teacher { left: -4px; bottom: -4px; transform: rotate(-4deg); }
.phone-parent { right: 0; top: 0; transform: rotate(5deg); }
.phone-head { margin-bottom: 10px; font-size: 13px; font-weight: 800; }
.phone-block { padding: 9px; margin-top: 7px; border-radius: 11px; background: #f7f7f8; }
.phone-block.accent { background: var(--brand-soft); }
.phone-block b, .phone-block span, .phone-block em { display: block; }
.phone-block b { font-size: 13px; }
.phone-block span { margin-top: 2px; color: #6b7280; font-size: 9px; }
.phone-block em { margin-top: 5px; color: var(--accent); font-size: 9px; font-style: normal; font-weight: 700; }
.phone-parent p { color: #5d6472; font-size: 10px; line-height: 1.5; }
.stars { color: var(--brand); font-size: 12px; letter-spacing: 1px; }
.phone-photo { height: 56px; margin-top: 8px; border-radius: 10px; background: linear-gradient(135deg, #ffd873, #a9e3e7); }
.hero-industries {
  position: relative; z-index: 2;
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 36px; padding-top: 22px;
  border-top: 1px solid rgba(184, 166, 125, .25);
}
.hero-industries span { padding: 7px 13px; border-radius: 999px; background: rgba(255,255,255,.66); color: #5f6572; font-size: 12px; }

.section { padding: 94px 0; }
.section-heading { max-width: 760px; margin-bottom: 36px; }
.section-heading h2, .callout-card h2, .final-cta h2, .success-card h2 {
  margin: 0 0 12px; font-size: clamp(30px, 3.2vw, 44px); line-height: 1.22; letter-spacing: -.035em;
}
.section-heading p { max-width: 680px; margin: 0; color: var(--muted); font-size: 16px; }
.features-section { background: #fff; border-block: 1px solid var(--line); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card {
  min-height: 218px; padding: 27px; border-radius: var(--radius);
  border: 1px solid var(--line); background: #fff;
  transition: transform .18s, box-shadow .18s, border-color .18s;
}
.feature-card:hover { transform: translateY(-4px); border-color: #dfcd9e; box-shadow: 0 18px 45px rgba(54, 43, 16, .08); }
.feature-icon { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 20px; border-radius: 12px; background: var(--brand-soft); color: #9b6b00; font-weight: 800; }
.feature-card:nth-child(even) .feature-icon { background: var(--accent-soft); color: #087d88; }
.feature-card h3 { margin: 0 0 9px; font-size: 19px; }
.feature-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.text-link { color: var(--brand-deep); font-size: 14px; font-weight: 700; }
.feature-card .text-link { display: inline-block; margin-top: 16px; }
.steps-section { background: linear-gradient(180deg, #fff8e8, var(--paper)); }
.step-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--line); }
.step-card { min-height: 230px; padding: 28px; background: rgba(255,255,255,.86); }
.step-card > span { display: block; margin-bottom: 42px; color: var(--brand-deep); font-size: 13px; font-weight: 900; letter-spacing: .12em; }
.step-card h3 { margin: 0 0 10px; font-size: 20px; }
.step-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }
.industry-section { background: #fff; }
.industry-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.industry-grid span { padding: 26px 14px; border-radius: 16px; border: 1px solid var(--line); text-align: center; background: #fffdf8; font-weight: 700; }
.industry-grid span:nth-child(3n+2) { background: var(--accent-soft); border-color: #cbeef0; }
.image-text-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 58px; }
.image-text-grid.image-left .image-text-copy { order: 2; }
.image-text-grid.image-left .image-text-visual { order: 1; }
.image-text-copy h2 { margin: 0 0 18px; font-size: clamp(30px, 3.4vw, 46px); line-height: 1.2; letter-spacing: -.03em; }
.image-text-copy .rich-text { color: var(--muted); font-size: 16px; line-height: 1.9; }
.image-text-copy .button { margin-top: 18px; }
.image-text-visual img { border-radius: 24px; box-shadow: var(--shadow); }
.visual-placeholder { min-height: 360px; border-radius: 28px; background: radial-gradient(circle at 25% 20%, #ffe49a, transparent 32%), linear-gradient(145deg, #1f2a3a, #0d7c84); display: grid; place-content: center; text-align: center; color: #fff; }
.visual-placeholder span { font-size: 70px; font-weight: 900; letter-spacing: -.08em; }
.visual-placeholder small { color: rgba(255,255,255,.7); }
.callout-section { padding-block: 70px; }
.callout-card {
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
  padding: 48px; border-radius: 30px; background: #1e2837; color: #fff;
  overflow: hidden; position: relative;
}
.callout-card::after { content: ""; position: absolute; width: 280px; height: 280px; border-radius: 50%; right: -60px; top: -120px; background: rgba(255,180,0,.16); }
.callout-card > * { position: relative; z-index: 1; }
.callout-card h2 { margin-bottom: 8px; font-size: 34px; }
.callout-card p { margin: 0; color: rgba(255,255,255,.68); }
.callout-card .button-ghost { border-color: rgba(255,255,255,.25); background: rgba(255,255,255,.08); color: #fff; }

.customer-section { background: #fff; border-block: 1px solid var(--line); }
.logo-wall { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-bottom: 30px; }
.customer-logo { min-height: 100px; display: flex; align-items: center; justify-content: center; gap: 9px; border: 1px solid var(--line); border-radius: 15px; color: #4e5664; background: #fffdf9; }
.customer-logo img { max-height: 46px; width: auto; opacity: .8; }
.logo-letter { display: grid; place-items: center; width: 33px; height: 33px; border-radius: 10px; background: var(--brand-soft); color: var(--brand-deep); font-weight: 900; }
.customer-logo strong { font-size: 14px; }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.testimonial-card { padding: 28px; border-radius: var(--radius); background: #faf8f2; }
.quote-mark { height: 30px; color: var(--brand); font-family: Georgia, serif; font-size: 58px; line-height: .8; }
.testimonial-card p { min-height: 96px; margin: 12px 0 22px; color: #4d5564; font-size: 15px; line-height: 1.85; }
.testimonial-card footer { display: grid; }
.testimonial-card footer b { font-size: 14px; }
.testimonial-card footer span { color: var(--muted); font-size: 12px; }
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 18px; }
.case-card { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.case-label { color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .08em; }
.case-card h3 { margin: 10px 0 8px; font-size: 21px; }
.case-card p { margin: 0 0 14px; color: var(--muted); font-size: 14px; }
.case-card small { color: #8b919d; }
.news-preview { background: var(--paper); }
.split-heading { max-width: none; display: flex; align-items: end; justify-content: space-between; gap: 24px; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.news-card { min-height: 250px; padding: 27px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.news-meta { display: flex; justify-content: space-between; color: #8a909c; font-size: 12px; }
.news-meta span { color: var(--brand-deep); font-weight: 700; }
.news-card h3 { margin: 25px 0 12px; font-size: 21px; line-height: 1.45; }
.news-card p { margin: 0 0 22px; color: var(--muted); font-size: 14px; line-height: 1.8; }

.page-hero { padding: 90px 0 68px; background: radial-gradient(circle at 85% 20%, rgba(15,163,177,.09), transparent 28%), linear-gradient(180deg, #fff7e5, var(--paper)); border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 840px; margin: 0; font-size: clamp(42px, 5vw, 66px); line-height: 1.12; letter-spacing: -.045em; }
.page-intro { max-width: 720px; margin-top: 22px; color: var(--muted); font-size: 18px; line-height: 1.9; }
.final-cta { background: #fff; border-top: 1px solid var(--line); }
.final-cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 30px; }
.final-cta h2 { margin-bottom: 0; font-size: 36px; }
.contact-section { background: #fff; border-block: 1px solid var(--line); }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.contact-card { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius); }
.contact-card span { display: block; margin-bottom: 13px; color: var(--muted); font-size: 13px; }
.contact-card a, .contact-card b { display: block; font-size: 21px; color: var(--ink); }
.contact-card p { margin: 9px 0 0; color: var(--muted); font-size: 13px; }
.legal-content { max-width: 850px; padding-top: 70px; padding-bottom: 90px; }
.legal-content h2 { margin: 38px 0 13px; font-size: 27px; }
.legal-content h3 { margin: 28px 0 10px; }
.legal-content p, .legal-content li { color: #4f5765; }
.legal-updated { margin-top: 48px; color: var(--muted); font-size: 13px; }
.category-tabs { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 30px; }
.category-tabs a { padding: 9px 16px; border: 1px solid var(--line); border-radius: 999px; background: #fff; font-size: 14px; }
.category-tabs a.active { background: var(--brand); border-color: var(--brand); font-weight: 700; }
.empty-state { padding: 80px 20px; grid-column: 1/-1; text-align: center; color: var(--muted); }
.article-header { padding: 86px 0 46px; background: linear-gradient(180deg, #fff8e8, var(--paper)); }
.article-header-inner { max-width: 900px; }
.article-category { display: inline-flex; padding: 6px 13px; border-radius: 999px; background: var(--brand-soft); color: #8d6100; font-size: 12px; font-weight: 700; }
.article-header h1 { margin: 22px 0 16px; font-size: clamp(38px, 5vw, 62px); line-height: 1.16; letter-spacing: -.04em; }
.article-header p { max-width: 760px; margin: 0; color: var(--muted); font-size: 18px; }
.article-byline { margin-top: 22px; color: #8b919d; font-size: 13px; }
.article-cover { margin-top: -30px; }
.article-cover img { width: 100%; max-height: 540px; object-fit: cover; border-radius: 24px; box-shadow: var(--shadow); }
.article-body { max-width: 820px; padding-top: 62px; padding-bottom: 90px; font-size: 17px; }
.article-body h2 { margin: 42px 0 14px; font-size: 30px; }
.article-body .rich-text p { color: #414958; line-height: 1.95; }
.article-body blockquote { margin: 32px 0; padding: 24px 28px; border-left: 4px solid var(--brand); background: #fff8e7; color: #4a5261; font-size: 18px; }
.article-image img { border-radius: 18px; }
.article-back { margin-top: 50px; }

.demo-hero-grid { display: grid; grid-template-columns: 1fr 360px; align-items: end; gap: 60px; }
.demo-hero p { max-width: 640px; color: var(--muted); font-size: 18px; }
.demo-note-card { padding: 28px; border-radius: 20px; background: #1f2937; color: #fff; }
.demo-note-card span { color: rgba(255,255,255,.6); font-size: 13px; }
.demo-note-card a { display: block; margin: 8px 0 14px; color: #ffd363; font-size: 27px; font-weight: 800; }
.demo-note-card p { margin: 0; color: rgba(255,255,255,.65); font-size: 13px; }
.demo-form-wrap { max-width: 920px; }
.lead-form { padding: 38px; border-radius: 26px; border: 1px solid var(--line); background: #fff; box-shadow: 0 20px 60px rgba(42, 32, 10, .06); }
.form-heading { margin-bottom: 26px; }
.form-heading h2 { margin: 0; font-size: 32px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field-wrap { display: grid; gap: 8px; font-size: 14px; font-weight: 600; }
.field-wrap--full { grid-column: 1/-1; }
.field-wrap em { color: #d33d3d; font-style: normal; margin-left: 3px; }
.field-input { width: 100%; border: 1px solid #ded6c5; border-radius: 12px; background: #fffdf9; padding: 13px 14px; outline: none; }
.field-input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(255,180,0,.16); }
.field-textarea { resize: vertical; min-height: 120px; }
.field-error { color: #c73737; font-weight: 500; }
.form-errors { padding: 12px 15px; margin-bottom: 20px; border-radius: 10px; background: #fff0f0; color: #a52e2e; font-size: 14px; }
.captcha-field { grid-column: 1/-1; }
.captcha-row { display: flex; align-items: center; gap: 12px; }
.captcha-row img { width: 150px; height: 52px; border-radius: 9px; border: 1px solid var(--line); }
.captcha-row .field-input { max-width: 260px; }
.captcha-refresh { border: 0; background: none; color: var(--brand-deep); cursor: pointer; white-space: nowrap; }
.hp-field { position: absolute !important; left: -10000px !important; width: 1px !important; height: 1px !important; opacity: 0 !important; }
.form-submit-row { margin-top: 28px; }
.form-submit-row p { margin: 12px 0 0; color: var(--muted); font-size: 12px; text-align: center; }
.form-submit-row p a { color: var(--brand-deep); }
.captcha-row .field-input { margin: 0; }
.success-card { max-width: 640px; margin: 0 auto; padding: 55px; border: 1px solid var(--line); border-radius: 28px; background: #fff; text-align: center; box-shadow: var(--shadow); }
.success-icon { display: grid; place-items: center; width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-size: 34px; font-weight: 900; }
.success-card p { margin: 0 0 28px; color: var(--muted); }

.site-footer { padding: 64px 0 20px; background: #182130; color: #fff; }
.footer-main { display: grid; grid-template-columns: 1.2fr 1fr; gap: 70px; padding-bottom: 50px; }
.brand-light .brand-copy strong { color: #fff; }
.brand-light .brand-copy small { color: rgba(255,255,255,.5); }
.footer-brand > p { max-width: 420px; color: rgba(255,255,255,.58); }
.footer-contact { display: grid; gap: 4px; margin-top: 24px; color: rgba(255,255,255,.55); font-size: 13px; }
.footer-contact a { color: #ffd363; font-size: 22px; font-weight: 800; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; }
.footer-links h3 { margin: 0 0 14px; color: #fff; font-size: 14px; }
.footer-links a { display: block; margin: 9px 0; color: rgba(255,255,255,.58); font-size: 13px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.42); font-size: 12px; }
.footer-bottom nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px 17px; }
.footer-bottom a { color: rgba(255,255,255,.48); }
.footer-bottom .missing { color: #ffb4b4; }
.back-top { position: fixed; right: 22px; bottom: 24px; width: 42px; height: 42px; border: 0; border-radius: 50%; background: var(--brand); color: #322400; font-size: 19px; font-weight: 900; cursor: pointer; box-shadow: 0 10px 25px rgba(0,0,0,.15); z-index: 30; }

@media (max-width: 1080px) {
  .desktop-nav { gap: 14px; }
  .phone-link, .text-action { display: none; }
  .hero-grid { grid-template-columns: 1fr 470px; gap: 25px; }
  .hero-copy h1 { font-size: 53px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .step-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(3, 1fr); }
  .logo-wall { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 860px) {
  .site-wrap { width: min(100% - 30px, 720px); }
  .desktop-nav, .header-actions { display: none; }
  .menu-toggle { display: block; margin-left: auto; }
  .header-inner { min-height: 66px; }
  .hero-section { padding-top: 50px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy h1 { font-size: 45px; }
  .hero-visual { min-height: 430px; margin-top: 10px; }
  .dashboard-card { inset: 20px 35px 30px 10px; }
  .phone-teacher { left: 0; bottom: -8px; }
  .phone-parent { right: 4px; top: 0; }
  .section { padding: 70px 0; }
  .feature-grid, .testimonial-grid, .news-grid, .contact-grid { grid-template-columns: 1fr; }
  .step-grid { grid-template-columns: 1fr; }
  .step-card { min-height: auto; }
  .step-card > span { margin-bottom: 24px; }
  .image-text-grid, .image-text-grid.image-left { grid-template-columns: 1fr; }
  .image-text-grid.image-left .image-text-copy, .image-text-grid.image-left .image-text-visual { order: initial; }
  .case-grid { grid-template-columns: 1fr; }
  .callout-card, .final-cta-inner, .split-heading { align-items: flex-start; flex-direction: column; }
  .callout-card { padding: 34px; }
  .demo-hero-grid { grid-template-columns: 1fr; }
  .demo-note-card { max-width: 420px; }
  .footer-main { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { gap: 20px; }
  .footer-bottom { flex-direction: column; }
  .footer-bottom nav { justify-content: flex-start; }
}
@media (max-width: 560px) {
  .brand-copy small { display: none; }
  .hero-copy h1 { font-size: 38px; }
  .hero-subtitle, .page-intro, .demo-hero p { font-size: 16px; }
  .hero-actions, .cta-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .button, .cta-actions .button { width: 100%; }
  .hero-visual { min-height: 360px; }
  .dashboard-card { inset: 20px 0 25px 0; }
  .mock-sidebar { width: 54px; padding-inline: 9px; }
  .mock-main { padding: 14px; }
  .mock-stats { grid-template-columns: 1fr 1fr; }
  .mock-stats span:nth-child(3) { display: none; }
  .phone-card { width: 135px; padding: 10px; border-width: 3px; }
  .phone-teacher { left: -6px; }
  .phone-parent { right: -6px; }
  .phone-parent p, .phone-photo { display: none; }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .logo-wall { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: 1fr; }
  .captcha-field { grid-column: auto; }
  .captcha-row { flex-wrap: wrap; }
  .lead-form { padding: 25px 18px; }
  .success-card { padding: 38px 22px; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .article-header { padding-top: 60px; }
  .page-hero { padding: 64px 0 48px; }
}

/* 2026-10-20 现代中式教育品牌版式：稳定、对称、以真实场景和信息层级为主。 */
:root {
  --line: #e8dfcf;
  --paper: #fbfaf5;
  --radius: 16px;
  --max: 1240px;
}

.site-header {
  background: rgba(251, 250, 245, .94);
}
.header-inner { min-height: 84px; gap: 34px; }
.desktop-nav { gap: 27px; }
.desktop-nav a {
  color: #333b47;
  font-size: 16px;
  font-weight: 600;
  line-height: 84px;
}
.desktop-nav a.active::after { bottom: 20px; width: 24px; height: 3px; }
.text-action { font-size: 14px; font-weight: 600; }
.header-actions { margin-left: 3px; }

.hero-section {
  padding: 28px 0 58px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .72), transparent 72%),
    var(--paper);
}
.hero-section::before {
  background: linear-gradient(90deg, transparent 49.95%, rgba(137, 113, 69, .08) 50%, transparent 50.05%);
  background-size: 120px 100%;
  opacity: .5;
}
.hero-banner {
  position: relative;
  min-height: 552px;
  overflow: hidden;
  border: 1px solid rgba(150, 130, 90, .2);
  border-radius: 5px;
  background: #f7f0e2;
  box-shadow: 0 26px 65px rgba(48, 41, 26, .12);
}
.hero-banner-media,
.hero-banner-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-banner-media img { object-fit: cover; object-position: center; }
.hero-banner-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255, 251, 242, .99) 0%, rgba(255, 251, 242, .94) 36%, rgba(255, 251, 242, .62) 58%, rgba(255, 251, 242, .05) 80%);
}
.hero-banner::after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(155, 127, 67, .18);
  pointer-events: none;
}
.hero-banner-inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
  padding: 74px 72px 66px;
}
.hero-copy h1 {
  max-width: 620px;
  margin-bottom: 22px;
  font-size: clamp(42px, 4.5vw, 64px);
  line-height: 1.16;
  letter-spacing: -.035em;
  font-weight: 800;
}
.hero-subtitle {
  max-width: 560px;
  color: #4c5663;
  font-size: 18px;
  line-height: 1.9;
}
.hero-proof { margin-top: 30px; gap: 18px 24px; }
.hero-proof span::before { background: #e6f4f1; }
.hero-seal {
  position: absolute;
  z-index: 3;
  right: 38px;
  top: 42px;
  display: grid;
  gap: 8px;
  padding: 12px 9px;
  border: 2px solid rgba(185, 48, 38, .72);
  color: #a73b30;
  font-family: "STKaiti", "KaiTi", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .16em;
  writing-mode: vertical-rl;
  background: rgba(255, 251, 242, .66);
}
.hero-seal span { display: block; }
.hero-capabilities {
  position: relative;
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: -1px 34px 0;
  border: 1px solid var(--line);
  border-top: 0;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 14px 30px rgba(50, 43, 27, .06);
}
.hero-capabilities > div {
  position: relative;
  display: grid;
  gap: 3px;
  padding: 20px 24px;
}
.hero-capabilities > div + div { border-left: 1px solid var(--line); }
.hero-capabilities strong { font-size: 17px; letter-spacing: .08em; }
.hero-capabilities span { color: var(--muted); font-size: 13px; }
.hero-capabilities strong::after {
  content: "";
  display: inline-block;
  width: 18px;
  height: 2px;
  margin: 0 0 4px 9px;
  background: var(--brand);
}

.section { padding: 88px 0; }
.section-heading--center {
  max-width: 760px;
  margin-right: auto;
  margin-left: auto;
  text-align: center;
}
.section-heading--center p { margin-right: auto; margin-left: auto; }
.section-heading--center .eyebrow { justify-content: center; }
.section-heading h2 { letter-spacing: -.025em; }

.feature-card {
  position: relative;
  min-height: 226px;
  padding: 30px 28px;
  border-radius: 12px;
  background: #fffefa;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 28px;
  width: 42px;
  height: 3px;
  background: var(--brand);
}
.feature-card:nth-child(even)::before { background: var(--accent); }
.feature-icon {
  width: 62px;
  height: 62px;
  margin-bottom: 22px;
  border-radius: 14px;
  background: #fff8e5;
}
.feature-card:nth-child(even) .feature-icon { background: #edf8f7; }
.feature-icon img { width: 46px; height: 46px; object-fit: contain; }

.industry-grid { gap: 14px; }
.industry-grid span {
  position: relative;
  padding: 25px 12px 23px;
  border-radius: 10px;
  background: #fff;
  font-size: 16px;
  letter-spacing: .04em;
}
.industry-grid span:nth-child(3n+2) { background: #fff; border-color: var(--line); }
.industry-grid span::before {
  content: "";
  display: block;
  width: 24px;
  height: 2px;
  margin: 0 auto 12px;
  background: var(--brand);
}
.industry-grid span:nth-child(3n+2)::before { background: var(--accent); }

.page-hero {
  padding: 70px 0 64px;
  background:
    linear-gradient(90deg, transparent 49.96%, rgba(145, 118, 63, .06) 50%, transparent 50.04%),
    linear-gradient(180deg, #fff9eb, var(--paper));
  background-size: 110px 100%, auto;
}
.page-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
  align-items: center;
  gap: 54px;
}
.page-hero-grid--single { grid-template-columns: 1fr; }
.page-hero h1 { letter-spacing: -.025em; }
.page-hero-image img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  border: 1px solid rgba(145, 118, 63, .18);
  border-radius: 6px;
  box-shadow: 0 20px 48px rgba(45, 38, 23, .11);
}

@media (max-width: 1080px) {
  .desktop-nav { gap: 15px; }
  .desktop-nav a { font-size: 15px; }
  .hero-banner-inner { padding: 62px 54px; }
  .hero-seal { right: 28px; }
}
@media (max-width: 860px) {
  .header-inner { min-height: 70px; }
  .hero-section { padding: 20px 0 38px; }
  .hero-banner { min-height: 590px; }
  .hero-banner-shade {
    background: linear-gradient(180deg, rgba(255, 251, 242, .96) 0%, rgba(255, 251, 242, .91) 52%, rgba(255, 251, 242, .28) 100%);
  }
  .hero-banner-inner { padding: 52px 34px; }
  .hero-copy h1 { font-size: 44px; }
  .hero-seal { display: none; }
  .hero-capabilities {
    grid-template-columns: 1fr 1fr;
    margin: 0;
  }
  .hero-capabilities > div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .hero-capabilities > div:nth-child(4) { border-top: 1px solid var(--line); }
  .page-hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .page-hero-image img { height: auto; aspect-ratio: 16 / 9; }
}
@media (max-width: 560px) {
  .hero-banner { min-height: 570px; border-right: 0; border-left: 0; border-radius: 0; }
  .site-wrap .hero-banner { margin-right: -15px; margin-left: -15px; }
  .hero-banner::after { inset: 9px; }
  .hero-banner-inner { padding: 44px 25px; }
  .hero-copy h1 { font-size: 36px; line-height: 1.2; }
  .hero-subtitle { font-size: 16px; }
  .hero-proof { gap: 12px; }
  .hero-capabilities { margin: 0 -15px; }
  .hero-capabilities > div { padding: 17px 18px; }
  .section { padding: 68px 0; }
  .feature-card { padding: 27px 24px; }
  .industry-grid { gap: 9px; }
  .industry-grid span { padding: 20px 8px; font-size: 14px; }
  .page-hero { padding: 52px 0 46px; }
}