:root {
  --c-primary: #0d9488;
  --c-primary-dark: #0f766e;
  --c-primary-light: #14b8a6;
  --c-accent: #f59e0b;
  --c-accent-soft: #fef3c7;
  --c-ink: #0f172a;
  --c-muted: #64748b;
  --c-line: #e2e8f0;
  --c-bg: #f5f7f8;
  --c-card: #ffffff;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(15, 118, 110, .08);
  --shadow-sm: 0 4px 14px rgba(15, 23, 42, .06);
  --maxw: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  color: var(--c-ink);
  background: var(--c-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-line);
}
.nav {
  display: flex; align-items: center; gap: 28px;
  height: 66px; max-width: var(--maxw); margin: 0 auto; padding: 0 20px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; letter-spacing: .5px; }
.brand .logo {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(135deg, var(--c-primary-light), var(--c-primary-dark));
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 18px;
  box-shadow: 0 6px 16px rgba(13, 148, 136, .35);
}
.brand small { display: block; font-size: 11px; color: var(--c-muted); font-weight: 500; letter-spacing: 0; }
.nav-links { display: flex; gap: 4px; margin-left: auto; flex-wrap: wrap; }
.nav-links a {
  padding: 8px 14px; border-radius: 999px; color: var(--c-muted); font-weight: 600; font-size: 15px;
  transition: .18s;
}
.nav-links a:hover { color: var(--c-primary-dark); background: #ecfdf9; }
.nav-links a.active { color: #fff; background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark)); }
.nav-cta {
  background: var(--c-accent); color: #fff !important; box-shadow: 0 6px 14px rgba(245, 158, 11, .3);
}
.nav-cta:hover { background: #d97706 !important; }
.nav-toggle { display: none; margin-left: auto; background: none; border: 0; font-size: 26px; cursor: pointer; color: var(--c-ink); }

/* ---------- 通用 ---------- */
.section { padding: 56px 0; }
.section-head { text-align: center; margin-bottom: 36px; }
.section-head .eyebrow { color: var(--c-primary); font-weight: 700; letter-spacing: 2px; font-size: 13px; text-transform: uppercase; }
.section-head h2 { font-size: 30px; margin: 8px 0 6px; }
.section-head p { color: var(--c-muted); margin: 0; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  padding: 12px 24px; border-radius: 999px; border: 0; font-weight: 700; font-size: 15px;
  transition: .18s; text-decoration: none;
}
.btn-primary { background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark)); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-accent { background: var(--c-accent); color: #fff; }
.btn-ghost { background: #fff; color: var(--c-primary-dark); border: 1px solid var(--c-line); }
.btn-ghost:hover { border-color: var(--c-primary); }
.tag { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.tag-teal { background: #ccfbf1; color: #0f766e; }
.tag-amber { background: var(--c-accent-soft); color: #b45309; }
.tag-gray { background: #f1f5f9; color: #475569; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(1200px 500px at 80% -10%, #99f6e4 0%, transparent 60%),
              linear-gradient(135deg, #0f766e 0%, #0d9488 50%, #115e59 100%);
  color: #fff;
}
.hero-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; padding: 72px 20px 84px; }
.hero h1 { font-size: 44px; line-height: 1.2; margin: 14px 0 18px; }
.hero h1 .hl { color: #fde68a; }
.hero p.lead { font-size: 18px; opacity: .92; margin: 0 0 28px; max-width: 540px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.15); padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 28px; margin-top: 36px; }
.hero-stats .num { font-size: 30px; font-weight: 800; color: #fde68a; }
.hero-stats .lbl { font-size: 13px; opacity: .85; }
.hero-card {
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22);
  border-radius: 20px; padding: 26px; backdrop-filter: blur(6px);
}
.hero-card h3 { margin: 0 0 16px; font-size: 17px; }
.mini-q { background: rgba(255,255,255,.92); color: var(--c-ink); border-radius: 12px; padding: 14px 16px; margin-bottom: 12px; box-shadow: var(--shadow-sm); }
.mini-q .q { font-weight: 700; font-size: 14px; margin-bottom: 10px; }
.mini-bar { height: 8px; background: #e2e8f0; border-radius: 999px; overflow: hidden; margin: 6px 0; }
.mini-bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--c-primary-light), var(--c-accent)); border-radius: 999px; }
.mini-q small { color: var(--c-muted); font-size: 12px; }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--c-card); border-radius: var(--radius); padding: 22px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--c-line); transition: .2s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: #cbd5e1; }
.feature-icon { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; font-size: 22px; margin-bottom: 14px; background: #ecfdf9; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { color: var(--c-muted); margin: 0; font-size: 14px; }

/* 服务/数据条 */
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat-strip .stat { background: #fff; border-radius: var(--radius); padding: 22px; text-align: center; border: 1px solid var(--c-line); }
.stat-strip .num { font-size: 32px; font-weight: 800; color: var(--c-primary-dark); }
.stat-strip .lbl { color: var(--c-muted); font-size: 14px; }

/* 列表 */
.news-item { display: flex; gap: 18px; align-items: center; padding: 18px 0; border-bottom: 1px solid var(--c-line); }
.news-item:last-child { border-bottom: 0; }
.news-date { flex: 0 0 64px; text-align: center; }
.news-date .d { font-size: 24px; font-weight: 800; color: var(--c-primary-dark); }
.news-date .m { font-size: 12px; color: var(--c-muted); }
.news-body h4 { margin: 0 0 4px; font-size: 17px; }
.news-body p { margin: 0; color: var(--c-muted); font-size: 14px; }
.news-meta { font-size: 12px; color: #94a3b8; margin-top: 4px; }

/* 表格 */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--c-line); background: #fff; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; }
table.tbl th, table.tbl td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--c-line); white-space: nowrap; }
table.tbl thead th { background: #f8fafc; color: var(--c-muted); font-weight: 700; position: sticky; top: 0; }
table.tbl tbody tr:hover { background: #f0fdfa; }

/* 过滤工具条 */
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 20px; }
.input, select.input {
  padding: 10px 14px; border: 1px solid var(--c-line); border-radius: 10px; font-size: 14px; background: #fff;
  color: var(--c-ink); outline: none;
}
.input:focus { border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(13,148,136,.12); }

/* ---------- 问卷 ---------- */
.survey-wrap { max-width: 820px; margin: 0 auto; }
.survey-card { background: #fff; border-radius: 18px; box-shadow: var(--shadow); border: 1px solid var(--c-line); overflow: hidden; }
.survey-head { background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark)); color: #fff; padding: 28px 30px; }
.survey-head h1 { margin: 0 0 6px; font-size: 24px; }
.survey-head p { margin: 0; opacity: .9; font-size: 14px; }
.survey-stats { display: flex; gap: 22px; margin-top: 14px; font-size: 14px; opacity: .95; flex-wrap: wrap; }
.survey-stats strong { color: #fde68a; font-size: 17px; }
.progress { height: 6px; background: rgba(255,255,255,.25); border-radius: 999px; margin-top: 16px; overflow: hidden; }
.progress > i { display: block; height: 100%; width: 0; background: var(--c-accent); transition: width .3s; }
.survey-body { padding: 26px 30px 34px; }
.q-block { padding: 20px 0; border-bottom: 1px dashed var(--c-line); }
.q-block:last-of-type { border-bottom: 0; }
.q-title { font-weight: 700; font-size: 16px; margin-bottom: 14px; display: flex; gap: 10px; }
.q-no { flex: 0 0 26px; height: 26px; border-radius: 8px; background: var(--c-primary); color: #fff; display: grid; place-items: center; font-size: 13px; }
.opt {
  display: flex; align-items: center; gap: 12px; padding: 13px 16px; border: 1.5px solid var(--c-line);
  border-radius: 12px; margin-bottom: 10px; cursor: pointer; transition: .15s; font-size: 15px;
}
.opt:hover { border-color: var(--c-primary-light); background: #f0fdfa; }
.opt.sel { border-color: var(--c-primary); background: #ecfdf9; }
.opt .mark { flex: 0 0 26px; height: 26px; border-radius: 8px; background: #f1f5f9; color: var(--c-muted); display: grid; place-items: center; font-weight: 700; font-size: 13px; }
.opt.sel .mark { background: var(--c-primary); color: #fff; }
.field-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-bottom: 12px; }
.field label { font-size: 13px; color: var(--c-muted); display: block; margin-bottom: 6px; font-weight: 600; }
.field input, .field select { width: 100%; padding: 11px 14px; border: 1px solid var(--c-line); border-radius: 10px; font-size: 14px; }

/* 报告 */
.report-hero { background: linear-gradient(135deg, #0f766e, #115e59); color: #fff; padding: 44px 0; }
.report-hero h1 { margin: 0 0 6px; font-size: 30px; }
.kpi-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 26px; }
.kpi { background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2); border-radius: 14px; padding: 18px; text-align: center; }
.kpi .n { font-size: 30px; font-weight: 800; color: #fde68a; }
.kpi .l { font-size: 13px; opacity: .9; }
.chart-card { background: #fff; border-radius: var(--radius); border: 1px solid var(--c-line); box-shadow: var(--shadow-sm); padding: 20px; }
.chart-card h4 { margin: 0 0 4px; font-size: 16px; display: flex; gap: 10px; align-items: flex-start; }
.chart-card .sub { color: #94a3b8; font-size: 12px; margin: 0 0 14px 36px; }
.chart-box { position: relative; height: 240px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #0b1220; color: #cbd5e1; padding: 48px 0 26px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 36px; }
.site-footer h4 { color: #fff; font-size: 15px; margin: 0 0 14px; }
.site-footer a { color: #cbd5e1; display: block; padding: 4px 0; font-size: 14px; }
.site-footer a:hover { color: var(--c-primary-light); }
.footer-contact p { margin: 6px 0; font-size: 14px; }
.footer-contact .hot { color: var(--c-accent); font-size: 22px; font-weight: 800; }
.footer-bottom { border-top: 1px solid #1e293b; margin-top: 30px; padding-top: 18px; text-align: center; font-size: 13px; color: #64748b; }
.footer-beian { text-align: center; padding: 8px 0 4px; }
.footer-beian a { font-size: 13px; color: #64748b; text-decoration: none; }
.footer-beian a:hover { color: #93c5fd; }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px 20px; }
.footer-links a { padding: 2px 0; }

/* 弹窗 */
.modal-mask { position: fixed; inset: 0; background: rgba(15,23,42,.55); display: none; place-items: center; z-index: 100; padding: 20px; }
.modal-mask.show { display: grid; }
.modal { background: #fff; border-radius: 16px; max-width: 560px; width: 100%; max-height: 86vh; overflow: auto; box-shadow: 0 30px 60px rgba(0,0,0,.3); }
.modal-head { padding: 18px 22px; border-bottom: 1px solid var(--c-line); display: flex; justify-content: space-between; align-items: center; }
.modal-head h3 { margin: 0; font-size: 18px; }
.modal-body { padding: 22px; }
.close-x { background: none; border: 0; font-size: 24px; cursor: pointer; color: var(--c-muted); }

/* toast */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(20px);
  background: #0f172a; color: #fff; padding: 12px 22px; border-radius: 999px; font-size: 14px;
  opacity: 0; pointer-events: none; transition: .25s; z-index: 200; box-shadow: 0 10px 30px rgba(0,0,0,.3);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.err { background: #b91c1c; }

.empty { text-align: center; color: var(--c-muted); padding: 40px 0; }
.pager { display: flex; gap: 8px; justify-content: center; align-items: center; margin-top: 20px; }
.pager button { padding: 8px 14px; border: 1px solid var(--c-line); background: #fff; border-radius: 8px; cursor: pointer; }
.pager button:disabled { opacity: .5; cursor: not-allowed; }

/* 响应式 */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; padding: 50px 20px 60px; }
  .hero h1 { font-size: 34px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .kpi-row, .stat-strip { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; position: absolute; top: 66px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 12px; border-bottom: 1px solid var(--c-line); }
  .nav-links.open { display: flex; }
  .nav-links a { width: 100%; }
  .nav-toggle { display: block; }
}
@media (max-width: 560px) {
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .kpi-row, .stat-strip { grid-template-columns: 1fr 1fr; }
  .field-row { grid-template-columns: 1fr; }
}