/* =========================================================
   赛柏蓝杯 · 医药行业 WorkBuddy 技能应用大赛官网
   全局样式（浅色主题）
   ========================================================= */
:root {
  --blue: #1a56db;
  --blue-deep: #163a9e;
  --blue-bg: #eff6ff;
  --green: #047857;
  --green-bg: #ecfdf5;
  --orange: #c2410c;
  --orange-bg: #fff7ed;
  --purple: #7c3aed;
  --purple-bg: #f3e8ff;
  --dark: #0f172a;
  --text: #1e293b;
  --muted: #64748b;
  --border: #e2e8f0;
  --bg: #f8fafc;
  --card: #ffffff;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 16px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 8px 30px rgba(15, 23, 42, 0.10);
  --radius: 12px;
  --radius-sm: 8px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.75; -webkit-font-smoothing: antialiased; }
a { color: var(--blue); text-decoration: none; }
img { max-width: 100%; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.section { padding: 64px 0; }
.section-title { font-size: 28px; font-weight: 800; letter-spacing: 0.5px; margin-bottom: 12px; }
.section-sub { color: var(--muted); font-size: 15px; margin-bottom: 36px; max-width: 760px; }
.text-muted { color: var(--muted); }
.hl { border-radius: var(--radius-sm); padding: 18px 22px; margin: 16px 0; font-size: 14px; line-height: 1.8; }
.hl-blue { background: var(--blue-bg); border-left: 4px solid var(--blue); }
.hl-green { background: var(--green-bg); border-left: 4px solid var(--green); }
.hl-orange { background: var(--orange-bg); border-left: 4px solid var(--orange); }

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 16px; color: var(--dark); flex-shrink: 0; }
.nav-logo .logo-mark {
  width: 34px; height: 34px; border-radius: 9px; background: linear-gradient(135deg, var(--blue), #3b82f6);
  display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px;
}
.nav-logo .logo-mark small { font-size: 9px; line-height: 1; }
.nav-logo .logo-img { height: 44px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 22px; flex: 1; min-width: 0; justify-content: center; overflow-x: auto; overflow-y: hidden; scrollbar-width: none; -ms-overflow-style: none; }
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a { color: var(--text); font-size: 14px; font-weight: 500; transition: color .15s; white-space: nowrap; flex-shrink: 0; }
.nav-links a:hover { color: var(--blue); }
.nav-cta { display: flex; gap: 10px; }
.nav-toggle { display: none; background: none; border: none; font-size: 22px; cursor: pointer; color: var(--dark); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 22px; border-radius: 10px; border: 1px solid transparent;
  font-size: 14px; font-weight: 700; cursor: pointer; transition: all .18s; font-family: var(--font);
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-deep); transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn-green { background: var(--green); color: #fff; }
.btn-green:hover { background: #065f46; transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn-orange { background: var(--orange); color: #fff; }
.btn-orange:hover { background: #9a3412; transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.btn-outline { background: #fff; color: var(--blue); border-color: var(--blue); }
.btn-outline:hover { background: var(--blue-bg); }
.btn-ghost { background: #fff; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--muted); }
.btn-sm { padding: 6px 14px; font-size: 13px; border-radius: 8px; }
.btn-lg { padding: 14px 32px; font-size: 16px; border-radius: 12px; }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none !important; }
.btn-block { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(145deg, #0f172a 0%, #1a365d 40%, #1a56db 78%, #3b82f6 100%);
  color: #fff; padding: 88px 0 110px; text-align: center;
}
.hero::after {
  content: ''; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 L55 30 L30 55 L5 30Z' fill='none' stroke='rgba(255,255,255,0.05)' stroke-width='1'/%3E%3C/svg%3E") repeat;
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; }
.hero-badge {
  display: inline-block; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.22);
  border-radius: 50px; padding: 6px 22px; font-size: 13px; letter-spacing: 3px; margin-bottom: 26px;
}
.hero h1 { font-size: 44px; font-weight: 800; letter-spacing: 2px; line-height: 1.3; }
.hero h1 .wb { color: #60a5fa; }
.hero-slogan {
  font-size: 30px; font-weight: 800; letter-spacing: 2px; margin: 18px auto 2px; line-height: 1.4;
  color: #fbbf24; text-shadow: 0 2px 18px rgba(251,191,36,0.25);
}
.hero-slogan em {
  display: block; font-style: normal; font-size: 17px; font-weight: 700; letter-spacing: 4px;
  color: #fdba74; margin-top: 4px;
}
.hero .sub { font-size: 18px; color: rgba(255,255,255,0.85); margin: 14px auto 8px; max-width: 640px; }
.hero .sub b { color: #fdba74; }
.hero .dept-row { display: flex; justify-content: center; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.dept-tag { padding: 8px 22px; border-radius: 8px; font-weight: 700; font-size: 14px; color: #fff; }
.dt-blue { background: var(--blue); } .dt-green { background: var(--green); } .dt-orange { background: var(--orange); }
.hero .cta-row { display: flex; justify-content: center; gap: 16px; margin-top: 38px; flex-wrap: wrap; }
.hero-meta { margin-top: 34px; font-size: 13px; color: rgba(255,255,255,0.55); }

/* 统计看板 */
.stats-strip {
  position: relative; z-index: 2; margin-top: -56px;
}
.stats-card {
  background: var(--card); border-radius: 16px; box-shadow: var(--shadow-lg);
  display: grid; grid-template-columns: repeat(4, 1fr); overflow: hidden; border: 1px solid var(--border);
}
.stat-item { padding: 26px 16px; text-align: center; border-right: 1px solid var(--border); }
.stat-item:last-child { border-right: none; }
.stat-item .num { font-size: 32px; font-weight: 800; color: var(--blue); line-height: 1.2; }
.stat-item .label { font-size: 13px; color: var(--muted); margin-top: 4px; }

/* ---------- 卡片 ---------- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow); transition: transform .18s, box-shadow .18s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card.blue { border-top: 3px solid var(--blue); }
.card.green { border-top: 3px solid var(--green); }
.card.orange { border-top: 3px solid var(--orange); }
.card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.card.blue h3 { color: var(--blue); } .card.green h3 { color: var(--green); } .card.orange h3 { color: var(--orange); }
.card p, .card li { font-size: 14px; color: var(--muted); line-height: 1.75; }
.card ul { padding-left: 18px; margin-top: 6px; } .card li { margin-bottom: 4px; }

/* 赛道示例 */
.skill-example { background: #f8fafc; border: 1px dashed var(--border); border-radius: var(--radius-sm); padding: 16px 18px; }
.skill-example h4 { font-size: 14px; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.skill-example p { font-size: 13px; color: var(--muted); line-height: 1.7; }
.skill-example .code {
  font-family: "SF Mono", Consolas, Monaco, monospace; font-size: 12px; color: var(--muted);
  background: #fff; border: 1px solid var(--border); padding: 8px 12px; border-radius: 6px;
  white-space: pre-wrap; line-height: 1.6; margin-top: 8px;
}

/* 赛道头 */
.track-head { display: flex; align-items: center; gap: 10px; margin: 40px 0 14px; }
.track-head .t-icon { font-size: 22px; }
.track-head h3 { font-size: 19px; font-weight: 800; }
.track-head .t-desc { font-size: 14px; color: var(--muted); margin-top: 2px; }

/* 阶段流程 */
.phase-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* 飞轮效应 */
.flywheel-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 28px 14px; margin: 24px 0; position: relative;
}
.fw-step {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px 16px; text-align: center; font-size: 13px; font-weight: 700;
  color: var(--text); box-shadow: var(--shadow);
  position: relative; line-height: 1.6;
}
.fw-step::after {
  content: '→'; position: absolute; right: -16px; top: 50%;
  transform: translateY(-50%); color: var(--muted); font-size: 20px; font-weight: 400;
}
.fw-step:nth-child(3n)::after {
  content: '↘'; right: -10px; bottom: -22px; top: auto; transform: none;
  color: var(--blue);
}
.fw-step:last-child::after { display: none; }
.phase-card {
  background: var(--card); border: 2px solid var(--border); border-radius: var(--radius);
  padding: 22px 18px; text-align: center; box-shadow: var(--shadow); position: relative;
}
.phase-card .num {
  display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px;
  background: var(--blue); color: #fff; border-radius: 50%; font-size: 18px; font-weight: 800; margin-bottom: 12px;
}
.phase-card .date { display: inline-block; font-size: 12px; font-weight: 700; color: var(--orange); background: var(--orange-bg); padding: 3px 10px; border-radius: 20px; margin-bottom: 8px; }
.phase-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.phase-card p { font-size: 13px; color: var(--muted); line-height: 1.7; }

/* 表格 */
.table-wrap { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: 14px; background: var(--card); }
th, td { border-bottom: 1px solid var(--border); padding: 11px 14px; text-align: left; vertical-align: top; }
th { background: #f1f5f9; font-weight: 700; font-size: 13px; color: var(--text); white-space: nowrap; }
td { color: var(--text); }
tbody tr:last-child td { border-bottom: none; }

/* 时间线 */
.tl { position: relative; padding-left: 30px; }
.tl::before { content: ''; position: absolute; left: 9px; top: 4px; bottom: 4px; width: 2px; background: var(--border); }
.tli { position: relative; margin-bottom: 24px; }
.tli::before {
  content: ''; position: absolute; left: -25px; top: 7px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--blue); border: 2px solid #fff; box-shadow: var(--shadow);
}
.tli .tld { font-size: 14px; font-weight: 700; color: var(--blue); margin-bottom: 3px; }
.tli .tlc { font-size: 14px; color: var(--muted); }

/* 奖项 */
.prize-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 20px; }
.prize-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 24px; box-shadow: var(--shadow); text-align: center; position: relative; overflow: hidden; }
.prize-card.gold { background: linear-gradient(180deg, #fffbeb 0%, #fff 60%); border-top: 4px solid #d97706; }
.prize-card.silver { background: linear-gradient(180deg, #f8fafc 0%, #fff 60%); border-top: 4px solid #94a3b8; }
.prize-card.bronze { background: linear-gradient(180deg, #fff7ed 0%, #fff 60%); border-top: 4px solid #b45309; }
.prize-card .p-icon { font-size: 36px; margin-bottom: 8px; }
.prize-card h3 { font-size: 17px; font-weight: 800; }
.prize-card .p-count { font-size: 13px; color: var(--muted); margin: 2px 0 10px; }
.prize-card .p-money { font-size: 26px; font-weight: 800; color: var(--orange); margin-bottom: 10px; }
.prize-card .p-reward { font-size: 13px; color: var(--text); line-height: 1.7; text-align: left; }
.prize-card .p-reward li { margin-bottom: 4px; }

/* 评分表 */
.score-note { font-size: 13px; color: var(--muted); margin-top: 8px; }

/* 徽章/标签 */
.badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: 700; }
.badge-blue { background: var(--blue-bg); color: var(--blue); }
.badge-green { background: var(--green-bg); color: var(--green); }
.badge-orange { background: var(--orange-bg); color: var(--orange); }
.badge-gold { background: #fef3c7; color: #b45309; }

/* ---------- 表单 ---------- */
.form-card { max-width: 640px; margin: 0 auto; background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 36px; box-shadow: var(--shadow-lg); }
.form-card.wide { max-width: 800px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 700; margin-bottom: 7px; }
.form-group label .req { color: #dc2626; }
.form-group .hint { font-size: 12px; color: var(--muted); margin-top: 5px; }
.form-control {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 10px;
  font-size: 14px; font-family: var(--font); background: #fff; color: var(--text); transition: border-color .15s, box-shadow .15s;
}
.form-control:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.12); }
textarea.form-control { resize: vertical; min-height: 90px; line-height: 1.7; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.radio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.radio-card {
  border: 2px solid var(--border); border-radius: 12px; padding: 14px 10px; text-align: center;
  cursor: pointer; transition: all .15s; background: #fff;
}
.radio-card:hover { border-color: var(--blue); }
.radio-card.active { border-color: var(--blue); background: var(--blue-bg); }
.radio-card .rc-icon { font-size: 22px; }
.radio-card .rc-name { font-size: 14px; font-weight: 700; margin-top: 4px; }
.radio-card .rc-desc { font-size: 12px; color: var(--muted); }
.form-actions { display: flex; gap: 12px; margin-top: 8px; }
.form-error { background: #fef2f2; border: 1px solid #fecaca; color: #b91c1c; border-radius: 8px; padding: 12px 16px; font-size: 14px; margin-bottom: 18px; display: none; }
.form-error.show { display: block; }
.form-success { background: var(--green-bg); border: 1px solid #a7f3d0; color: var(--green); border-radius: 8px; padding: 14px 16px; font-size: 14px; margin-bottom: 18px; display: none; }
.form-success.show { display: block; }

/* ===== 报名成功模态框 ===== */
.success-modal-overlay {
  position: fixed; inset: 0; background: rgba(15, 23, 42, 0.65);
  display: flex; align-items: center; justify-content: center; z-index: 1000;
  padding: 20px; opacity: 0; transition: opacity .2s;
  backdrop-filter: blur(4px);
}
.success-modal-overlay.show { opacity: 1; }
.success-modal {
  background: #fff; border-radius: 16px; max-width: 720px; width: 100%;
  box-shadow: 0 25px 80px rgba(15, 23, 42, 0.35);
  overflow: hidden; position: relative;
  transform: scale(0.94); transition: transform .25s cubic-bezier(.2, .9, .3, 1.2);
  max-height: 90vh; overflow-y: auto;
}
.success-modal-overlay.show .success-modal { transform: scale(1); }
.sm-close {
  position: absolute; top: 12px; right: 12px; width: 32px; height: 32px;
  border: none; background: rgba(0,0,0,0.04); border-radius: 50%;
  font-size: 22px; line-height: 1; cursor: pointer; color: var(--muted);
  transition: all .15s; z-index: 2;
}
.sm-close:hover { background: rgba(0,0,0,0.1); color: var(--dark); }
.sm-head {
  background: linear-gradient(135deg, #1a56db 0%, #3b82f6 100%);
  color: #fff; padding: 32px 28px 26px; text-align: center;
}
.sm-check {
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(255,255,255,0.18); border: 3px solid #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 30px; font-weight: 700; margin-bottom: 12px;
  animation: smPop .35s cubic-bezier(.2, .9, .3, 1.4);
}
@keyframes smPop { 0% { transform: scale(0); } 100% { transform: scale(1); } }
.sm-head h2 { font-size: 24px; font-weight: 800; margin-bottom: 6px; }
.sm-no { font-size: 14px; opacity: 0.92; }
.sm-no b { background: rgba(255,255,255,0.2); padding: 2px 10px; border-radius: 4px; font-size: 15px; }
.sm-body { display: grid; grid-template-columns: 220px 1fr; gap: 24px; padding: 24px 28px; }
.sm-qr { text-align: center; }
.sm-qr-img {
  width: 200px; height: 200px; border: 2px solid var(--border);
  border-radius: 12px; display: flex; align-items: center; justify-content: center;
  background: #fafbfc; margin: 0 auto 12px; overflow: hidden;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.05);
}
.sm-qr-img img { width: 100%; height: 100%; object-fit: contain; }
.sm-qr-placeholder {
  color: var(--muted); font-size: 32px; line-height: 1.6; padding: 16px;
}
.sm-qr-placeholder span { font-size: 13px; }
.sm-qr-title { font-size: 14px; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
.sm-qr-note { font-size: 12px; color: var(--muted); }
.sm-info { display: flex; flex-direction: column; gap: 14px; }
.sm-row { display: flex; gap: 12px; align-items: flex-start; }
.sm-row-icon {
  width: 36px; height: 36px; border-radius: 8px; background: var(--blue-bg);
  display: flex; align-items: center; justify-content: center; font-size: 18px; flex-shrink: 0;
}
.sm-row-label { font-size: 12px; color: var(--muted); margin-bottom: 2px; }
.sm-row-value { font-size: 14px; color: var(--text); font-weight: 600; }
.sm-row-value b { color: var(--blue); }
.sm-actions { display: flex; gap: 12px; padding: 0 28px 18px; }
.sm-act { flex: 1; }
.sm-foot { padding: 14px 28px 22px; font-size: 12px; color: var(--muted); line-height: 1.7; border-top: 1px solid var(--border); background: #fafbfc; }
.sm-foot b { color: var(--purple); }
@media (max-width: 640px) {
  .sm-body { grid-template-columns: 1fr; gap: 18px; padding: 20px; }
  .sm-qr-img { width: 180px; height: 180px; }
  .sm-actions { flex-direction: column; padding: 0 20px 16px; }
  .sm-head { padding: 28px 20px 22px; }
  .sm-head h2 { font-size: 21px; }
  .sm-foot { padding: 12px 20px 18px; }
}

/* 上传区域 */
.upload-box {
  border: 2px dashed var(--border); border-radius: 12px; padding: 26px; text-align: center;
  cursor: pointer; transition: all .15s; background: #fafbfc;
}
.upload-box:hover, .upload-box.drag { border-color: var(--blue); background: var(--blue-bg); }
.upload-box .up-icon { font-size: 32px; }
.upload-box .up-title { font-size: 14px; font-weight: 700; margin-top: 6px; }
.upload-box .up-hint { font-size: 12px; color: var(--muted); margin-top: 4px; }
.upload-box .up-file { display: none; }
.file-chip {
  display: inline-flex; align-items: center; gap: 8px; background: var(--blue-bg); color: var(--blue);
  border: 1px solid #bfdbfe; padding: 6px 14px; border-radius: 8px; font-size: 13px; font-weight: 600; margin-top: 10px;
}
.file-chip .x { cursor: pointer; color: var(--muted); }

/* ---------- 技能市场 ---------- */
.market-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.market-toolbar .search-box { display: flex; align-items: center; background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 0 14px; gap: 8px; }
.market-toolbar .search-box input { border: none; outline: none; padding: 10px 0; width: 260px; font-size: 14px; font-family: var(--font); }
.filter-tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-tab {
  padding: 7px 18px; border-radius: 30px; border: 1px solid var(--border); background: #fff;
  font-size: 13px; font-weight: 600; cursor: pointer; transition: all .15s; color: var(--text);
}
.filter-tab:hover { border-color: var(--blue); color: var(--blue); }
.filter-tab.active { background: var(--blue); border-color: var(--blue); color: #fff; }

.market-grid { display: grid; grid-template-columns: 1fr 320px; gap: 24px; align-items: start; }

/* 百通AI技能市场引导横幅 */
.more-skills-banner {
  display: flex; align-items: center; gap: 16px;
  background: linear-gradient(120deg, #fdf2f8 0%, #eff6ff 60%, #f0fdf4 100%);
  border: 1px solid #e9d5ff; border-radius: var(--radius);
  padding: 16px 22px; margin-bottom: 24px; text-decoration: none;
  transition: box-shadow .2s, transform .2s;
}
.more-skills-banner:hover { box-shadow: 0 6px 18px rgba(168, 85, 247, .15); transform: translateY(-2px); text-decoration: none; }
.msb-icon { font-size: 30px; flex-shrink: 0; }
.msb-text { flex: 1; min-width: 0; }
.msb-title { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.msb-sub { font-size: 13px; color: var(--muted); line-height: 1.6; }
.msb-btn { flex-shrink: 0; }
.skill-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.skill-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 10px; transition: transform .18s, box-shadow .18s;
}
.skill-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.skill-card.featured { border: 2px solid var(--blue); }
.skill-card .sc-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.skill-card .sc-icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 22px; flex-shrink: 0; }
.skill-card .sc-name { font-size: 16px; font-weight: 800; line-height: 1.4; }
.skill-card .sc-dev { font-size: 12px; color: var(--muted); }
.skill-card .sc-desc { font-size: 13px; color: var(--muted); line-height: 1.7; flex: 1; }
.skill-card .sc-meta { display: flex; align-items: center; gap: 14px; font-size: 12px; color: var(--muted); }
.skill-card .sc-meta span { display: inline-flex; align-items: center; gap: 4px; }
.skill-card .sc-foot { display: flex; align-items: center; justify-content: space-between; padding-top: 12px; border-top: 1px solid var(--border); }
.skill-card .download-count { font-size: 13px; font-weight: 700; color: var(--green); }
.skill-card .sc-badge { font-size: 11px; font-weight: 800; background: #fef3c7; color: #b45309; padding: 3px 10px; border-radius: 20px; }

.sidebar .side-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); margin-bottom: 20px; }
.side-card h4 { font-size: 15px; font-weight: 800; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.rank-item { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px dashed var(--border); }
.rank-item:last-child { border-bottom: none; }
.rank-item .rank-num { width: 22px; height: 22px; border-radius: 6px; background: #f1f5f9; color: var(--muted); font-size: 12px; font-weight: 800; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.rank-item .rank-num.top { background: var(--blue); color: #fff; }
.rank-item .rank-info { flex: 1; min-width: 0; }
.rank-item .rank-name { font-size: 13px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rank-item .rank-dev { font-size: 11px; color: var(--muted); }
.rank-item .rank-dl { font-size: 12px; font-weight: 700; color: var(--green); flex-shrink: 0; }

/* ---------- 用户覆盖与推广价值 ---------- */
.audience-section {
  background: linear-gradient(135deg, #1a56db 0%, #0f7be8 100%);
  color: #fff;
  padding: 64px 0 72px;
  position: relative;
  overflow: hidden;
}
.audience-section::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='80' height='80' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M40 5 L70 40 L40 75 L10 40Z' fill='none' stroke='rgba(255,255,255,0.08)' stroke-width='1'/%3E%3C/svg%3E") repeat;
  pointer-events: none;
}
.audience-inner { position: relative; z-index: 1; text-align: center; }
.audience-header {
  display: inline-block;
  background: rgba(0,0,0,0.14);
  border-radius: var(--radius);
  padding: 28px 44px 24px;
  margin-bottom: 24px;
  border-left: 5px solid #fff;
}
.ah-title { font-size: 22px; font-weight: 800; margin-bottom: 10px; }
.ah-num { font-size: 64px; font-weight: 900; line-height: 1.05; letter-spacing: 1px; }
.ah-note { font-size: 13px; opacity: 0.78; margin-top: 4px; }
.audience-desc {
  max-width: 820px;
  margin: 0 auto 32px;
  font-size: 15px;
  line-height: 1.85;
  opacity: 0.94;
}
.audience-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
  max-width: 960px;
  margin: 0 auto;
}
.audience-card {
  background: rgba(255,255,255,0.13);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-sm);
  padding: 18px 10px;
  text-align: center;
  backdrop-filter: blur(2px);
}
.audience-card strong { display: block; font-size: 24px; font-weight: 800; margin-bottom: 6px; }
.audience-card span { display: block; font-size: 13px; opacity: 0.9; }

@media (max-width: 960px) {
  .audience-grid { grid-template-columns: repeat(3, 1fr); }
  .audience-header { padding: 22px 28px 18px; }
  .ah-num { font-size: 52px; }
}
@media (max-width: 640px) {
  .audience-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .audience-section { padding: 44px 0 52px; }
  .audience-header { padding: 18px 20px 16px; border-left-width: 4px; }
  .ah-title { font-size: 17px; }
  .ah-num { font-size: 42px; }
  .audience-desc { font-size: 14px; }
  .audience-card { padding: 14px 8px; }
  .audience-card strong { font-size: 20px; }
  .audience-card span { font-size: 12px; }
}

/* ---------- 页脚 ---------- */
.footer { background: var(--dark); color: rgba(255,255,255,0.7); padding: 44px 0 30px; margin-top: 60px; }
.footer .f-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; margin-bottom: 28px; }
.footer h5 { color: #fff; font-size: 15px; font-weight: 800; margin-bottom: 12px; }
.footer p, .footer a { font-size: 13px; color: rgba(255,255,255,0.65); line-height: 1.9; }
.footer a:hover { color: #fff; }
.footer .f-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; text-align: center; font-size: 12px; color: rgba(255,255,255,0.4); }
.footer .f-beian { text-align: center; font-size: 12px; color: rgba(255,255,255,0.45); margin-bottom: 12px; }
.footer .f-beian a { color: rgba(255,255,255,0.6); text-decoration: underline; margin-right: 12px; }
.footer .f-beian a:hover { color: #fff; }
.footer .f-beian span { margin-right: 12px; }

/* 页面头部（子页面） */
.page-head {
  background: linear-gradient(135deg, #0f172a 0%, #1a56db 100%); color: #fff;
  padding: 56px 0 64px; text-align: center; position: relative; overflow: hidden;
}
.page-head::after { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 5 L55 30 L30 55 L5 30Z' fill='none' stroke='rgba(255,255,255,0.06)' stroke-width='1'/%3E%3C/svg%3E") repeat; pointer-events: none; }
.page-head-inner { position: relative; z-index: 1; }
.page-head h1 { font-size: 32px; font-weight: 800; letter-spacing: 1px; }
.page-head .crumb { font-size: 13px; color: rgba(255,255,255,0.6); margin-top: 8px; }
.page-head .crumb a { color: rgba(255,255,255,0.85); }

/* 流程步骤条 */
.steps { display: flex; align-items: center; justify-content: center; gap: 0; margin: 10px 0 34px; flex-wrap: wrap; }
.step-item { display: flex; align-items: center; gap: 8px; }
.step-item .s-num { width: 30px; height: 30px; border-radius: 50%; background: #fff; border: 2px solid var(--border); color: var(--muted); font-size: 13px; font-weight: 800; display: flex; align-items: center; justify-content: center; }
.step-item .s-label { font-size: 13px; font-weight: 600; color: var(--muted); }
.step-item.done .s-num { background: var(--blue); border-color: var(--blue); color: #fff; }
.step-item.done .s-label { color: var(--blue); }
.step-arrow { color: var(--border); font-size: 18px; margin: 0 10px; }

/* 提示框 */
.notice { border-radius: var(--radius-sm); padding: 16px 18px; font-size: 14px; margin: 14px 0; }
.notice-blue { background: var(--blue-bg); border: 1px solid #bfdbfe; }
.notice-green { background: var(--green-bg); border: 1px solid #a7f3d0; }
.notice-orange { background: var(--orange-bg); border: 1px solid #fed7aa; }
.notice h4 { font-size: 14px; margin-bottom: 4px; }

/* 空状态 */
.empty { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty .e-icon { font-size: 44px; margin-bottom: 10px; }
.empty p { font-size: 14px; }

/* Toast */
#toast-box { position: fixed; top: 80px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: var(--dark); color: #fff; padding: 12px 20px; border-radius: 10px; font-size: 14px;
  box-shadow: var(--shadow-lg); animation: slideIn .25s ease; max-width: 340px;
}
.toast.success { background: var(--green); }
.toast.error { background: #dc2626; }
@keyframes slideIn { from { transform: translateX(40px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* 加载 */
#page-loading { position: fixed; inset: 0; background: rgba(248,250,252,0.92); z-index: 10000; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; }
.spinner { width: 36px; height: 36px; border: 3px solid var(--border); border-top-color: var(--blue); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* 模态 */
.modal-mask { position: fixed; inset: 0; background: rgba(15,23,42,0.5); z-index: 2000; display: none; align-items: flex-start; justify-content: center; padding: 6vh 20px; overflow-y: auto; }
.modal-mask.show { display: flex; }
.modal { background: #fff; border-radius: 16px; width: 100%; max-width: 720px; box-shadow: var(--shadow-lg); animation: modalIn .2s ease; }
.modal-sm { max-width: 460px; }
.modal-head { padding: 20px 24px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.modal-head h3 { font-size: 17px; font-weight: 800; }
.modal-close { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--muted); line-height: 1; }
.modal-body { padding: 24px; }
.modal-foot { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }
@keyframes modalIn { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* 进度条 */
.progress { height: 6px; background: #e2e8f0; border-radius: 10px; overflow: hidden; margin-top: 6px; }
.progress .bar { height: 100%; background: linear-gradient(90deg, var(--blue), #3b82f6); border-radius: 10px; transition: width .3s; }

/* 响应式 — 平板 */
@media (max-width: 960px) {
  .grid-3, .grid-4, .phase-grid, .prize-row { grid-template-columns: repeat(2, 1fr); }
  .market-grid { grid-template-columns: 1fr; }
  .skill-list { grid-template-columns: 1fr; }
  .footer .f-grid { grid-template-columns: 1fr; gap: 20px; }
  .nav-cta { display: none; }
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); flex-direction: column; padding: 16px 24px; gap: 14px; align-items: flex-start; box-shadow: var(--shadow-lg); }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .hero h1 { font-size: 30px; }
  .hero .sub { font-size: 16px; }
  .hero-slogan { font-size: 22px; letter-spacing: 1px; }
  .hero-slogan em { font-size: 13.5px; letter-spacing: 2px; }
  .hero-badge { letter-spacing: 1px; padding: 5px 16px; font-size: 12px; }
  .section-title { font-size: 23px; }
  .section-sub { font-size: 14px; }
  .flywheel-grid { gap: 16px 8px; }
  .stats-strip { margin-top: -40px; }
  .stat-item .num { font-size: 26px; }
}

/* 响应式 — 手机 */
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4, .phase-grid, .prize-row, .form-row { grid-template-columns: 1fr !important; }
  .stats-card { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-bottom: 1px solid var(--border); padding: 18px 12px; }
  .stat-item .num { font-size: 22px; }
  .stat-item .label { font-size: 12px; }
  .container { padding: 0 16px; }
  .section { padding: 40px 0; }
  .section-title { font-size: 20px; }
  .section-sub { font-size: 13px; margin-bottom: 24px; }
  /* Hero */
  .hero { padding: 48px 0 70px; }
  .hero-badge { letter-spacing: 0.5px; padding: 4px 14px; font-size: 11px; margin-bottom: 18px; }
  .hero h1 { font-size: 24px; letter-spacing: 1px; }
  .hero .sub { font-size: 14px; margin-top: 10px; }
  .hero-slogan { font-size: 18px; letter-spacing: 0.5px; }
  .hero-slogan em { font-size: 12px; letter-spacing: 1px; }
  .hero .dept-row { gap: 8px; margin-top: 20px; }
  .dept-tag { padding: 6px 14px; font-size: 12px; width: 100%; text-align: center; }
  .hero .cta-row { gap: 10px; margin-top: 28px; }
  .hero .cta-row .btn { width: 100%; font-size: 15px; padding: 12px 20px; }
  .hero-meta { font-size: 11px; margin-top: 24px; line-height: 1.8; }
  .stats-strip { margin-top: -36px; }
  /* 卡片 */
  .card { padding: 16px; }
  .card h3 { font-size: 15px; }
  .card p, .card li { font-size: 13px; }
  .hl { padding: 14px 16px; font-size: 13px; line-height: 1.7; }
  /* 赛道示例 */
  .skill-example { padding: 12px 14px; }
  .skill-example h4 { font-size: 13px; }
  .skill-example p { font-size: 12px; }
  .skill-example .code { font-size: 11px; padding: 6px 10px; }
  .track-head { margin: 28px 0 12px; gap: 8px; }
  .track-head .t-icon { font-size: 18px; }
  .track-head h3 { font-size: 16px; }
  .track-head .t-desc { font-size: 13px; }
  /* 阶段卡片 */
  .phase-card { padding: 16px 14px; }
  .phase-card .num { width: 34px; height: 34px; font-size: 16px; }
  .phase-card h3 { font-size: 15px; }
  .phase-card p { font-size: 12px; }
  /* 表格 */
  .table-wrap { font-size: 13px; }
  th, td { padding: 8px 10px; font-size: 12px; }
  th { font-size: 12px; }
  /* 奖项卡片 */
  .prize-card { padding: 20px 16px; }
  .prize-card .p-icon { font-size: 28px; }
  .prize-card h3 { font-size: 15px; }
  .prize-card .p-money { font-size: 22px; }
  .prize-card .p-reward { font-size: 12px; }
  /* 表单 */
  .form-card { padding: 20px 16px; border-radius: 12px; }
  .form-group label { font-size: 13px; }
  .form-control { padding: 10px 12px; font-size: 13px; }
  .radio-grid { grid-template-columns: 1fr; }
  .radio-card { padding: 12px 8px; }
  .form-actions { flex-direction: column; }
  .form-actions .btn { width: 100%; }
  /* 时间线 */
  .tl { padding-left: 24px; }
  .tl::before { left: 7px; }
  .tli::before { left: -21px; width: 10px; height: 10px; }
  .tli .tld { font-size: 13px; }
  .tli .tlc { font-size: 13px; }
  /* 飞轮 */
  .flywheel-grid { grid-template-columns: 1fr; gap: 32px 8px; }
  .fw-step { padding: 14px 16px; font-size: 12px; }
  /* 页脚 */
  .footer { padding: 32px 0 24px; }
  .footer .f-grid { gap: 18px; margin-bottom: 20px; }
  .footer h5 { font-size: 14px; }
  .footer p, .footer a { font-size: 12px; }
  .footer .f-bottom { font-size: 11px; padding-top: 16px; }
  /* 子页面头部 */
  .page-head { padding: 40px 0 48px; }
  .page-head h1 { font-size: 24px; }
  /* 按钮 */
  .btn-lg { padding: 12px 24px; font-size: 15px; }
  .btn-sm { padding: 6px 12px; font-size: 12px; }
  /* 导航logo */
  .nav-logo { font-size: 14px; }
  .nav-logo .logo-mark { width: 30px; height: 30px; font-size: 14px; }
  /* 技能市场 */
  .market-toolbar { flex-direction: column; align-items: stretch; }
  .market-toolbar .search-box input { width: 100%; }
  .filter-tabs { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; padding-bottom: 4px; }
  .filter-tab { white-space: nowrap; }
  /* 百通AI横幅（手机端竖排） */
  .more-skills-banner { flex-direction: column; text-align: center; padding: 18px 16px; gap: 10px; }
  .msb-btn { width: 100%; }
  /* 模态 */
  .modal { border-radius: 12px; }
  .modal-head, .modal-body, .modal-foot { padding: 16px; }
  .modal-head h3 { font-size: 15px; }
  /* Toast */
  #toast-box { top: 70px; right: 12px; left: 12px; }
  .toast { max-width: none; font-size: 13px; padding: 10px 16px; }
}

/* 响应式 — 小屏手机 */
@media (max-width: 380px) {
  .hero h1 { font-size: 20px; }
  .hero .sub { font-size: 13px; }
  .hero-slogan { font-size: 16px; }
  .hero-slogan em { font-size: 11px; }
  .hero-badge { font-size: 10px; padding: 3px 10px; }
  .section-title { font-size: 18px; }
  .stat-item .num { font-size: 18px; }
  .stat-item .label { font-size: 11px; }
  .container { padding: 0 12px; }
  .card { padding: 14px 12px; }
  .prize-card .p-money { font-size: 18px; }
  .nav-logo { font-size: 12px; gap: 6px; }
  .nav-logo .logo-mark { width: 26px; height: 26px; font-size: 12px; }
}

/* ---------- 首页 · 路演排期公示 ---------- */
.roadshow-journey { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: center; margin: 20px 0 24px; padding: 16px 18px; background: var(--purple-bg); border-radius: 12px; }
.roadshow-journey .rj-step { background: #fff; border: 1px solid var(--border); color: var(--text); font-size: 13px; font-weight: 700; padding: 7px 14px; border-radius: 20px; }
.roadshow-journey .rj-step.rj-hot { background: var(--purple); border-color: var(--purple); color: #fff; }
.roadshow-journey i { color: var(--muted); font-style: normal; font-size: 13px; }
.rs-summary { text-align: center; font-size: 13.5px; color: var(--muted); margin-bottom: 14px; }
.rs-summary b { color: var(--purple); font-size: 16px; }
.rs-table-wrap { max-height: 480px; overflow-y: auto; border: 1px solid var(--border); border-radius: 12px; }
.rs-table-wrap table { margin: 0; }
.rs-table-wrap thead th { position: sticky; top: 0; background: var(--bg); z-index: 2; }
.rs-presenter-list { display: flex; flex-wrap: wrap; gap: 6px; }
.rs-presenter { display: inline-flex; align-items: center; gap: 6px; background: var(--bg); border: 1px solid var(--border); border-radius: 16px; padding: 3px 10px; font-size: 12.5px; font-weight: 600; }
.rs-presenter em { font-style: normal; color: var(--muted); font-weight: 400; max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rs-state { display: inline-block; font-size: 12px; font-weight: 700; padding: 2px 10px; border-radius: 12px; }
.rs-st-open { background: #d1fae5; color: #047857; }
.rs-st-full { background: #fee2e2; color: #b91c1c; }
.rs-st-closed { background: var(--bg); color: var(--muted); }

@media (max-width: 760px) {
  .roadshow-journey .rj-step { font-size: 11.5px; padding: 5px 10px; }
  .rs-presenter em { max-width: 110px; }
  .rs-table-wrap { max-height: 380px; }
}

/* ========================================================
   首页 · "大赛介绍" 侧边栏目录 + 顶部锚点条
   ======================================================== */
.intro-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 36px;
  align-items: start;
}

/* 左侧：sticky 目录 */
.toc-sidebar {
  position: sticky;
  top: 88px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 0;
  box-shadow: var(--shadow);
  max-height: calc(100vh - 110px);
  overflow-y: auto;
}
.toc-sidebar::-webkit-scrollbar { width: 4px; }
.toc-sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.toc-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--muted);
  padding: 0 18px 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 10px;
}
.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.toc-list li {
  margin: 0;
  padding: 0;
}
.toc-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
  border-left: 3px solid transparent;
  transition: all .15s;
  cursor: pointer;
  text-decoration: none;
}
.toc-list a:hover { background: var(--bg); color: var(--blue); }
.toc-list a.active {
  color: var(--blue);
  font-weight: 700;
  background: var(--blue-bg);
  border-left-color: var(--blue);
}
.toc-list a .toc-icon {
  font-size: 16px;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
}

/* 顶部锚点条（sticky，吸附在顶部导航下方） */
.intro-bar {
  position: sticky;
  top: 64px;
  z-index: 99;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  margin: -1px 0 0;
}
.intro-bar-inner {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.intro-bar-inner::-webkit-scrollbar { display: none; }
.intro-bar-inner a {
  flex-shrink: 0;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  border-radius: 18px;
  white-space: nowrap;
  transition: all .15s;
  text-decoration: none;
}
.intro-bar-inner a:hover { background: var(--bg); color: var(--blue); }
.intro-bar-inner a.active {
  background: var(--blue);
  color: #fff;
}
.intro-bar-inner .bar-spacer { flex: 1; }
.intro-bar-inner .bar-cta {
  flex-shrink: 0;
  background: var(--orange);
  color: #fff !important;
  padding: 7px 16px;
  border-radius: 18px;
  font-size: 13px;
  font-weight: 700;
  margin-left: 8px;
}
.intro-bar-inner .bar-cta:hover { background: #9a3412; color: #fff !important; }

/* 内容区 */
.intro-content { min-width: 0; }
.intro-content section { scroll-margin-top: 130px; }
.intro-section-anchor {
  display: block;
  height: 0;
  scroll-margin-top: 130px;
}

.intro-section-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 28px;
  border-bottom: 2px solid var(--border);
}
.intro-section-head .ish-num {
  width: 38px; height: 38px;
  background: linear-gradient(135deg, var(--blue), #3b82f6);
  color: #fff;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 16px;
  flex-shrink: 0;
}
.intro-section-head h2 {
  font-size: 26px; font-weight: 800;
  margin: 0; color: var(--dark);
}
.intro-section-head .ish-en {
  font-size: 12px; color: var(--muted);
  letter-spacing: 1px; margin-top: 2px;
}
.intro-section-head .ish-tag {
  display: inline-block;
  font-size: 11px; font-weight: 700;
  background: var(--orange-bg); color: var(--orange);
  padding: 2px 10px; border-radius: 20px;
  margin-left: auto; flex-shrink: 0;
}

/* FAB：移动端的目录按钮 */
.toc-fab {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 18px;
  z-index: 95;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--blue);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 22px;
  box-shadow: 0 6px 20px rgba(26, 86, 219, 0.4);
}

/* 抽屉：移动端目录 */
.toc-drawer-mask {
  position: fixed; inset: 0;
  background: rgba(15, 23, 42, 0.55);
  z-index: 9999;
  display: none;
  align-items: flex-end;
}
.toc-drawer-mask.open { display: flex; }
.toc-drawer {
  background: #fff;
  width: 100%;
  max-width: 320px;
  height: 80vh;
  margin-left: auto;
  padding: 22px 0 16px;
  overflow-y: auto;
  animation: tocDrawerIn .25s ease;
  box-shadow: -10px 0 30px rgba(0,0,0,0.15);
}
.toc-drawer .toc-close {
  position: absolute; top: 14px; right: 18px;
  background: none; border: none;
  font-size: 22px; cursor: pointer; color: var(--muted);
}
.toc-drawer { position: relative; }
@keyframes tocDrawerIn {
  from { transform: translateX(40px); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

/* 响应式 */
@media (max-width: 960px) {
  .intro-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .toc-sidebar { display: none; }
  .toc-fab { display: block; }
  .intro-section-head h2 { font-size: 22px; }
  .intro-section-head .ish-num { width: 34px; height: 34px; font-size: 14px; }
  .intro-content section { scroll-margin-top: 120px; }
}

@media (max-width: 640px) {
  .intro-section-head { gap: 10px; }
  .intro-section-head h2 { font-size: 19px; }
  .intro-section-head .ish-num { width: 30px; height: 30px; font-size: 13px; }
  .intro-section-head .ish-en { display: none; }
  .intro-section-head .ish-tag { font-size: 10px; padding: 2px 8px; }
  .intro-bar-inner a { padding: 5px 11px; font-size: 12px; }
  .intro-bar-inner .bar-cta { padding: 6px 12px; font-size: 12px; }
}

/* ---- 首页内容区内嵌的全宽区块适配 ---- */
.intro-content .stats-strip { margin-top: 0; margin-bottom: 24px; }
.intro-content .audience-section {
  border-radius: 16px;
  overflow: hidden;
  margin: 8px 0 28px;
  padding: 48px 32px 52px;
}
.intro-content .audience-grid { max-width: 680px; margin: 0 auto; }
.intro-content section { padding-bottom: 48px; }
.intro-content section + section { padding-top: 44px; border-top: 1px solid var(--border); }
.intro-content .iw-viewport::before { background: linear-gradient(90deg, transparent, transparent); }
.intro-content .iw-viewport::after { background: linear-gradient(270deg, transparent, transparent); }