/* =========================================================
   星纪教育 · AI赋能家庭教育  —  全局样式
   设计语言：藏青蓝 #1a365d / #2a4a7f  +  暖橙 #ed8936 / #dd7825
   纯静态、零依赖，兼容宝塔 Nginx 直接托管
   ========================================================= */

:root {
  /* 品牌色 */
  --navy-900: #1a365d;
  --navy-800: #1e3a6b;
  --navy-700: #2a4a7f;
  --navy-600: #34568f;
  --orange-500: #ed8936;
  --orange-600: #dd7825;
  --orange-400: #f6ad55;

  /* 中性色 */
  --gray-50: #f7fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e5e7eb;
  --gray-300: #e2e8f0;
  --gray-400: #cbd5e1;
  --gray-500: #9ca3af;
  --gray-600: #718096;
  --gray-700: #4a5568;
  --gray-800: #2d3748;
  --white: #ffffff;

  /* 语义 */
  --primary: var(--navy-700);
  --accent: var(--orange-500);
  --accent-dark: var(--orange-600);
  --text: var(--gray-800);
  --text-soft: var(--gray-600);
  --bg: var(--gray-50);
  --border: var(--gray-200);

  --radius: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 1px 3px rgba(26, 54, 93, .08);
  --shadow: 0 8px 24px rgba(26, 54, 93, .10);
  --shadow-lg: 0 18px 48px rgba(26, 54, 93, .16);
  --maxw: 1180px;
  --header-h: 68px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- 通用排版 ---------- */
.section { padding: 84px 0; }
.section.alt { background: var(--white); }
.section.navy { background: linear-gradient(135deg, var(--navy-900), var(--navy-700)); color: #fff; }

.eyebrow {
  display: inline-block;
  font-size: 13px; font-weight: 700; letter-spacing: .12em;
  color: var(--accent-dark);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.eyebrow.light { color: var(--orange-400); }

.section-title {
  font-size: 30px; font-weight: 800; line-height: 1.3;
  color: var(--navy-900); letter-spacing: -.01em;
}
.section.navy .section-title { color: #fff; }
.section-sub { margin-top: 12px; color: var(--text-soft); font-size: 16px; max-width: 620px; }
.section.navy .section-sub { color: rgba(255,255,255,.78); }
.center { text-align: center; }
.center .section-sub { margin-left: auto; margin-right: auto; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-weight: 700; font-size: 15px;
  cursor: pointer; border: 1.5px solid transparent; transition: all .2s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 8px 20px rgba(237,137,54,.32); }
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(237,137,54,.42); }
.btn-navy { background: var(--navy-700); color: #fff; }
.btn-navy:hover { background: var(--navy-900); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-outline { background: #fff; color: var(--navy-700); border-color: var(--gray-200); }
.btn-outline:hover { border-color: var(--navy-600); color: var(--navy-900); }
.btn-lg { padding: 16px 34px; font-size: 16px; }
.btn-block { width: 100%; }

/* ---------- 顶部导航 ---------- */
.header {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.header .container { display: flex; align-items: center; height: 100%; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--navy-900); font-size: 18px; }
.brand img { height: 38px; width: auto; }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  padding: 9px 14px; border-radius: 8px; font-weight: 600; color: var(--gray-700);
  font-size: 15px; transition: all .15s;
}
.nav a:hover, .nav a.active { color: var(--navy-700); background: var(--gray-100); }
.nav-cta { margin-left: 8px; }
.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; color: var(--navy-900); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-700) 55%, var(--navy-600) 100%);
  color: #fff; padding: 96px 0 110px;
}
.hero::after {
  content: ""; position: absolute; right: -120px; top: -120px;
  width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(237,137,54,.32), transparent 68%);
}
.hero::before {
  content: ""; position: absolute; left: -100px; bottom: -140px;
  width: 380px; height: 380px; border-radius: 50%;
  background: radial-gradient(circle, rgba(42,74,127,.6), transparent 70%);
}
.hero .container { position: relative; z-index: 1; }
.hero-inner { max-width: 760px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22);
  padding: 7px 16px; border-radius: 999px; font-size: 14px; font-weight: 600; margin-bottom: 22px;
}
.hero h1 {
  font-size: 46px; line-height: 1.22; font-weight: 800; letter-spacing: -.02em;
  margin-bottom: 20px;
}
.hero h1 .hl { color: var(--orange-400); }
.hero p.lead { font-size: 19px; color: rgba(255,255,255,.86); max-width: 600px; margin-bottom: 34px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-urgency {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 18px; padding: 9px 16px;
  background: rgba(237,137,54,.16);
  border: 1px solid rgba(237,137,54,.55);
  border-radius: 999px;
  color: #ffd9a8; font-size: 14px; font-weight: 700;
  animation: urgencyPulse 2.2s ease-in-out infinite;
}
@keyframes urgencyPulse { 0%,100% { opacity: 1; } 50% { opacity: .68; } }
.hero-note { margin-top: 20px; font-size: 13px; color: rgba(255,255,255,.6); }

/* ---------- 卡片通用 ---------- */
.card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* ---------- 场景板块 ---------- */
.scenario-icon { font-size: 30px; margin-bottom: 14px; }
.scenario h3 { font-size: 19px; color: var(--navy-900); margin-bottom: 10px; }
.scenario p { color: var(--gray-600); font-size: 15px; }

/* ---------- 引言条 ---------- */
.quote-band { text-align: center; }
.quote-band blockquote {
  font-size: 28px; font-weight: 800; line-height: 1.5; max-width: 820px; margin: 0 auto;
  color: #fff;
}
.quote-band blockquote .em { color: var(--orange-400); }
.quote-band .src { margin-top: 18px; color: rgba(255,255,255,.66); font-size: 15px; }

/* ---------- 五大元能力 ---------- */
.ability .num {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--orange-500), var(--orange-600));
  color: #fff; font-weight: 800; font-size: 18px; margin-bottom: 16px;
}
.ability h3 { font-size: 20px; color: var(--navy-900); margin-bottom: 8px; }
.ability p { color: var(--gray-600); font-size: 15px; margin-bottom: 12px; }
.ability .method {
  background: var(--gray-50); border-left: 3px solid var(--orange-500);
  padding: 10px 14px; border-radius: 0 8px 8px 0; font-size: 14px; color: var(--gray-700);
}

/* ---------- 7:3 对比 ---------- */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 8px; }
.compare-col { border-radius: var(--radius); padding: 30px; }
.compare-wrong { background: #fff5f5; border: 1px solid #fed7d7; }
.compare-right { background: #f0fff4; border: 1px solid #c6f6d5; }
.compare-col h3 { font-size: 20px; margin-bottom: 18px; }
.compare-wrong h3 { color: #c53030; }
.compare-right h3 { color: #276749; }
.compare-col ol { counter-reset: li; }
.compare-col li {
  position: relative; padding: 10px 0 10px 38px; border-bottom: 1px dashed var(--gray-200);
  font-size: 15px; color: var(--gray-700);
}
.compare-col li:last-child { border-bottom: none; }
.compare-col li::before {
  counter-increment: li; content: counter(li);
  position: absolute; left: 0; top: 9px; width: 26px; height: 26px; border-radius: 50%;
  display: grid; place-items: center; font-size: 13px; font-weight: 700; color: #fff;
}
.compare-wrong li::before { background: #fc8181; }
.compare-right li::before { background: #48bb78; }
.compare-result {
  margin-top: 18px; padding: 14px 16px; border-radius: 10px; font-weight: 700; font-size: 15px;
}
.compare-wrong .compare-result { background: #fed7d7; color: #9b2c2c; }
.compare-right .compare-result { background: #c6f6d5; color: #22543d; }

/* ---------- 数据/资质 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 36px; }
.stat { text-align: center; }
.stat .n { font-size: 44px; font-weight: 800; color: var(--orange-500); line-height: 1; }
.stat .l { margin-top: 8px; color: var(--gray-600); font-size: 15px; }
.badges { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--gray-100); border: 1px solid var(--border); color: var(--gray-700);
  padding: 9px 16px; border-radius: 999px; font-size: 14px; font-weight: 600;
}

/* ---------- 课程卡片 ---------- */
.course { display: flex; flex-direction: column; position: relative; overflow: hidden; }
.course.featured { border-color: var(--orange-500); box-shadow: var(--shadow); }
.course .ribbon {
  position: absolute; top: 16px; right: -34px; transform: rotate(45deg);
  background: var(--orange-500); color: #fff; font-size: 12px; font-weight: 700;
  padding: 5px 40px;
}
.course .tier { font-size: 13px; font-weight: 700; color: var(--accent-dark); letter-spacing: .08em; }
.course h3 { font-size: 24px; color: var(--navy-900); margin: 6px 0 4px; }
.course .tagline { color: var(--gray-600); font-size: 14px; min-height: 40px; }
.course .price { font-size: 38px; font-weight: 800; color: var(--navy-900); margin: 16px 0; }
.course .price small { font-size: 16px; font-weight: 600; color: var(--gray-500); }
.course .price .full { font-size: 16px; color: var(--gray-500); font-weight: 600; }
.course ul.feat { margin: 6px 0 22px; display: grid; gap: 9px; }
.course ul.feat li { position: relative; padding-left: 26px; font-size: 14.5px; color: var(--gray-700); }
.course ul.feat li::before {
  content: "✓"; position: absolute; left: 0; top: 0; color: var(--orange-600); font-weight: 800;
}
.course .btn { margin-top: auto; }

/* ---------- 家长改变 ---------- */
.change { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.change-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
.change-step { margin-bottom: 14px; }
.change-step .k {
  display: inline-block; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 6px; margin-bottom: 6px;
}
.change-step.before .k { background: #fed7d7; color: #c53030; }
.change-step.method .k { background: #feebc8; color: #c05621; }
.change-step.after .k { background: #c6f6d5; color: #276749; }
.change-step p { font-size: 15px; color: var(--gray-700); }

/* ---------- 师资 ---------- */
.team { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.member { text-align: center; }
.member .avatar {
  width: 120px; height: 120px; border-radius: 50%; object-fit: cover; margin: 0 auto 14px;
  border: 3px solid #fff; box-shadow: var(--shadow);
}
.member h4 { font-size: 17px; color: var(--navy-900); }
.member .role { font-size: 14px; color: var(--accent-dark); font-weight: 600; margin: 2px 0 6px; }
.member p { font-size: 13.5px; color: var(--gray-600); }

/* ---------- CTA 区块 ---------- */
.cta-band { text-align: center; }
.cta-band h2 { font-size: 32px; font-weight: 800; color: #fff; margin-bottom: 14px; }
.cta-band p { color: rgba(255,255,255,.82); margin-bottom: 28px; font-size: 17px; }
.cta-band .hero-actions { justify-content: center; }

/* ---------- 页脚 ---------- */
.footer { background: var(--navy-900); color: rgba(255,255,255,.72); padding: 56px 0 26px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 30px; }
.footer .brand { color: #fff; margin-bottom: 14px; }
.footer h5 { color: #fff; font-size: 15px; margin-bottom: 14px; font-weight: 700; }
.footer a { color: rgba(255,255,255,.72); display: block; padding: 5px 0; transition: color .15s; }
.footer a:hover { color: var(--orange-400); }
.footer .contact-line { display: flex; align-items: center; gap: 8px; padding: 5px 0; }
.footer .cert-row { display: flex; align-items: center; gap: 12px; margin-top: 14px; flex-wrap: wrap; }
.footer .cert-row img { height: 54px; width: auto; border-radius: 6px; background: #fff; padding: 3px; }
.footer .qr-mini { height: 64px; border-radius: 6px; }
.footer-bottom {
  margin-top: 36px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12);
  display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap;
  color: rgba(255,255,255,.55); font-size: 13px;
}
.footer-bottom .beian { display: inline-flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.footer-bottom .beian img { height: 16px; }
.footer-bottom .beian a { display: inline; padding: 0; color: rgba(255,255,255,.85); text-decoration: underline; text-underline-offset: 3px; }
.footer-bottom .beian a:hover { color: var(--orange-400); }

/* ---------- 报名咨询页 ---------- */
.contact-wrap { display: grid; grid-template-columns: 1.3fr 1fr; gap: 36px; align-items: start; }
.form-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow-sm); }
.form-card h3 { font-size: 22px; color: var(--navy-900); margin-bottom: 6px; }
.form-card .hint { color: var(--gray-500); font-size: 13px; margin-bottom: 22px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; color: var(--gray-800); margin-bottom: 7px; font-size: 14.5px; }
.field label .req { color: #e53e3e; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--gray-200); border-radius: 10px;
  font-size: 15px; font-family: inherit; color: var(--text); background: #fff; transition: border .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--navy-600); box-shadow: 0 0 0 3px rgba(42,74,127,.12);
}
.field textarea { resize: vertical; min-height: 96px; }
.field .err { color: #e53e3e; font-size: 13px; margin-top: 5px; display: none; }
.field.invalid input, .field.invalid select { border-color: #e53e3e; }
.field.invalid .err { display: block; }
.form-msg { margin-top: 14px; padding: 12px 14px; border-radius: 10px; font-size: 14px; display: none; }
.form-msg.ok { display: block; background: #f0fff4; color: #22543d; border: 1px solid #c6f6d5; }
.form-msg.bad { display: block; background: #fff5f5; color: #9b2c2c; border: 1px solid #fed7d7; }

.aside-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); margin-bottom: 22px; }
.aside-card h4 { font-size: 17px; color: var(--navy-900); margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.aside-card .qr { width: 160px; border-radius: 10px; margin: 0 auto 12px; border: 1px solid var(--border); }
.aside-card.center { text-align: center; }
.aside-list li { display: flex; gap: 10px; padding: 8px 0; border-bottom: 1px dashed var(--gray-200); font-size: 14.5px; }
.aside-list li:last-child { border-bottom: none; }
.aside-list .ico { color: var(--orange-600); font-weight: 800; }

.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-top: 8px; }
.step { text-align: center; }
.step .dot {
  width: 44px; height: 44px; border-radius: 50%; background: var(--navy-700); color: #fff;
  display: grid; place-items: center; font-weight: 800; margin: 0 auto 10px; font-size: 17px;
}
.step h5 { font-size: 15px; color: var(--navy-900); margin-bottom: 4px; }
.step p { font-size: 13.5px; color: var(--gray-600); }

.promise { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 8px; }
.promise .pc { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; display: flex; gap: 14px; align-items: flex-start; }
.promise .pc .ico { font-size: 26px; }
.promise .pc h4 { font-size: 16px; color: var(--navy-900); margin-bottom: 4px; }
.promise .pc p { font-size: 14px; color: var(--gray-600); }

.resources { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 8px; }
.resource { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; text-align: center; }
.resource .tag { display: inline-block; font-size: 12px; font-weight: 700; color: var(--accent-dark); background: #feebc8; padding: 3px 10px; border-radius: 6px; margin-bottom: 10px; }
.resource h4 { font-size: 17px; color: var(--navy-900); margin-bottom: 6px; }
.resource p { font-size: 13.5px; color: var(--gray-600); margin-bottom: 16px; min-height: 38px; }

/* 二维码弹窗 */
.qr-modal { position: fixed; inset: 0; background: rgba(15,23,42,.6); display: none; place-items: center; z-index: 200; padding: 20px; }
.qr-modal.show { display: grid; }
.qr-modal .box { background: #fff; border-radius: 16px; padding: 28px; max-width: 320px; text-align: center; }
.qr-modal .box img { width: 220px; margin: 0 auto 12px; border-radius: 10px; }
.qr-modal .box h4 { color: var(--navy-900); margin-bottom: 6px; }
.qr-modal .box p { font-size: 14px; color: var(--gray-600); margin-bottom: 16px; }
.qr-modal .close { position: absolute; top: 14px; right: 18px; font-size: 26px; color: #fff; cursor: pointer; }

/* ---------- 师资详情页 team.html ---------- */
.member-detail { display: grid; grid-template-columns: 300px 1fr; gap: 40px; align-items: start; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; box-shadow: var(--shadow-sm); }
.avatar-lg { width: 100%; max-width: 260px; border-radius: 16px; aspect-ratio: 1/1; object-fit: cover; border: 3px solid #fff; box-shadow: var(--shadow); }
.md-left { text-align: center; }
.md-name { font-size: 24px; font-weight: 800; color: var(--navy-900); margin-top: 18px; }
.md-role { color: var(--orange-600); font-weight: 700; margin: 6px 0 16px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.tag-list span, .tag-list a.book-link { font-size: 12.5px; color: var(--navy-700); background: var(--gray-100); border: 1px solid var(--border); border-radius: 20px; padding: 5px 12px; text-decoration: none; display: inline-block; transition: .2s; }
.tag-list a.book-link { background: linear-gradient(135deg, rgba(237,137,54,.12), rgba(237,137,54,.05)); border-color: rgba(237,137,54,.35); color: var(--accent-dark); }
.tag-list a.book-link:hover { background: var(--orange-500); color: #fff; border-color: var(--orange-500); }
.md-right { padding-top: 6px; }
.md-ip { color: var(--gray-700); line-height: 1.9; font-size: 15.5px; }
.ip-kernel { margin-top: 18px; padding: 14px 18px; background: linear-gradient(135deg, rgba(237,137,54,.10), rgba(237,137,54,.04)); border-left: 4px solid var(--orange-500); border-radius: 8px; color: var(--navy-900); line-height: 1.7; }

/* ---------- 关于我们 about.html ---------- */
.story { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: center; }
.story-text p { color: var(--gray-700); line-height: 1.9; margin-bottom: 14px; }
.story-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.timeline { max-width: 760px; margin: 0 auto; }
.tl-item { position: relative; padding: 0 0 28px 34px; border-left: 2px solid var(--gray-200); }
.tl-item:last-child { border-left-color: transparent; padding-bottom: 0; }
.tl-dot { position: absolute; left: -9px; top: 2px; width: 16px; height: 16px; border-radius: 50%; background: var(--orange-500); box-shadow: 0 0 0 4px rgba(237,137,54,.18); }
.tl-item h4 { color: var(--navy-900); font-size: 18px; margin-bottom: 6px; }
.tl-item p { color: var(--gray-600); font-size: 14.5px; }

/* ---------- 案例 cases.html ---------- */
.case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.case-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); }
.case-card .who { font-size: 13px; color: var(--orange-600); font-weight: 700; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.case-card .who::before { content: "👪"; }
.case-step { margin-bottom: 14px; }
.case-step .k { display: inline-block; font-size: 12px; font-weight: 800; padding: 2px 10px; border-radius: 20px; margin-bottom: 5px; }
.case-step.before .k { background: #fff5f5; color: #c53030; }
.case-step.method .k { background: #ebf8ff; color: #2b6cb0; }
.case-step.after .k { background: #f0fff4; color: #22543d; }
.case-step p { font-size: 14.5px; color: var(--gray-700); line-height: 1.7; margin: 0; }

/* ---------- 活动 events.html ---------- */
.event-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.event-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.event-card .ev-head { padding: 22px 24px; background: linear-gradient(135deg, var(--navy-700), var(--navy-900)); color: #fff; }
.event-card .ev-head .tag { font-size: 12px; background: rgba(237,137,54,.9); padding: 3px 10px; border-radius: 6px; font-weight: 700; }
.event-card .ev-head h3 { font-size: 20px; margin: 12px 0 6px; }
.event-card .ev-body { padding: 22px 24px; }
.event-card .ev-meta { display: flex; gap: 14px; color: var(--gray-700); font-weight: 600; margin-bottom: 12px; font-size: 14px; }
.event-card .ev-body p { color: var(--gray-600); font-size: 14.5px; line-height: 1.7; }

/* ---------- FAQ faq.html ---------- */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 26px; margin-bottom: 14px; box-shadow: var(--shadow-sm); }
.faq-item .q { font-size: 17px; font-weight: 700; color: var(--navy-900); margin-bottom: 10px; display: flex; gap: 10px; }
.faq-item .q::before { content: "Q"; background: var(--orange-500); color: #fff; width: 26px; height: 26px; border-radius: 7px; display: grid; place-items: center; font-size: 14px; flex: none; }
.faq-item .a { color: var(--gray-700); line-height: 1.8; font-size: 15px; padding-left: 36px; }

/* ---------- 干货 insights.html ---------- */
.insight-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.insight-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; }
.insight-card .cat { font-size: 12px; font-weight: 700; color: var(--accent-dark); background: #feebc8; padding: 3px 10px; border-radius: 6px; align-self: flex-start; margin-bottom: 12px; }
.insight-card h3 { font-size: 19px; color: var(--navy-900); margin-bottom: 10px; line-height: 1.4; }
.insight-card p { color: var(--gray-600); font-size: 14.5px; line-height: 1.7; flex: 1; }
.insight-card .more { margin-top: 16px; color: var(--orange-600); font-weight: 700; font-size: 14px; }

@media (max-width: 768px) {
  .member-detail, .story, .case-grid, .event-grid, .insight-grid { grid-template-columns: 1fr; }
  .member-detail { text-align: center; }
  .member-detail .md-right { text-align: left; }
  .story-stats { margin-top: 24px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .promise, .resources { grid-template-columns: 1fr; }
}

/* 滚动进入动画 */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

/* ---------- 响应式 ---------- */
/* ---------- 著作 book.html ---------- */
.book-intro { display: grid; grid-template-columns: 420px 1fr; gap: 50px; align-items: center; max-width: 1100px; margin: 0 auto; }
.book-cover img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow); }
.book-summary p { color: var(--gray-700); line-height: 1.9; margin-bottom: 14px; font-size: 15.5px; }
.book-meta { display: grid; gap: 10px; margin-top: 22px; padding-top: 22px; border-top: 1px dashed var(--gray-200); }
.book-meta div { display: flex; gap: 14px; font-size: 14.5px; color: var(--gray-700); }
.book-meta b { color: var(--navy-900); min-width: 48px; }
.book-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.book-img img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--border); }
.coauthors { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.coauthor { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 26px; text-align: center; box-shadow: var(--shadow-sm); }
.coauthor .avatar { width: 110px; height: 110px; border-radius: 50%; object-fit: cover; border: 3px solid #fff; box-shadow: var(--shadow); margin-bottom: 16px; }
.coauthor h4 { font-size: 20px; color: var(--navy-900); margin-bottom: 4px; }
.coauthor .role { color: var(--orange-600); font-weight: 700; font-size: 14px; margin-bottom: 10px; }
.coauthor p { color: var(--gray-600); font-size: 14px; line-height: 1.7; margin-bottom: 16px; }
.book-badge { margin-bottom: 14px; }
.book-badge a { display: inline-block; font-size: 12px; font-weight: 700; color: var(--accent-dark); background: linear-gradient(135deg, rgba(237,137,54,.12), rgba(237,137,54,.05)); border: 1px solid rgba(237,137,54,.35); border-radius: 20px; padding: 5px 12px; text-decoration: none; transition: .2s; }
.book-badge a:hover { background: var(--orange-500); color: #fff; }
.member .book-badge { margin-top: 8px; }
.member .book-badge a { font-size: 11.5px; padding: 4px 10px; }
.btn-sm { padding: 8px 16px; font-size: 13px; }

@media (max-width: 980px) {
  .book-intro { grid-template-columns: 1fr; }
  .book-gallery, .coauthors { grid-template-columns: 1fr; }
  .grid-3, .team, .resources { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .nav { display: none; }
  .nav.open {
    display: flex; flex-direction: column; align-items: stretch; gap: 4px;
    position: absolute; top: var(--header-h); left: 0; right: 0; background: #fff;
    padding: 14px 20px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow);
  }
  .menu-toggle { display: block; }
  .hero h1 { font-size: 32px; }
  .hero p.lead { font-size: 16px; }
  .section { padding: 56px 0; }
  .section-title { font-size: 24px; }
  .grid-3, .grid-2, .team, .resources, .change, .compare, .promise, .stats, .footer-grid, .steps { grid-template-columns: 1fr; }
  .quote-band blockquote { font-size: 22px; }
  .course .price { font-size: 32px; }
}