:root {
  --blue: #1f6feb;
  --blue-dark: #1a5fd0;
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1b2330;
  --muted: #6b7280;
  --border: #e6e9f0;
  --green: #1a7f37;
  --amber: #b3700a;
  --red: #cf222e;
  --shadow: 0 1px 3px rgba(16,24,40,.06), 0 1px 2px rgba(16,24,40,.04);
  --shadow-lg: 0 12px 32px rgba(16,24,40,.12);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
a { color: var(--blue); text-decoration: none; }
.muted { color: var(--muted); }
.hidden { display: none; }
.good { color: var(--green); } .bad { color: var(--red); } .mid { color: var(--amber); } .na { color: var(--muted); }

/* ===== 顶部导航 ===== */
.nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 28px; background: rgba(255,255,255,.85); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20;
}
.nav-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; color: var(--text); }
.nav-logo {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 8px; color: #fff; font-size: 15px;
  background: linear-gradient(135deg, #2f80ff, #1f6feb);
}
.nav-link { font-size: 14px; color: var(--muted); }
.nav-link:hover { color: var(--blue); }

main { max-width: 920px; margin: 0 auto; padding: 0 20px 48px; }

/* ===== 按钮 ===== */
.btn {
  background: var(--blue); color: #fff; border: none; border-radius: 10px;
  padding: 12px 24px; font-size: 15px; font-weight: 600; cursor: pointer; white-space: nowrap;
  transition: background .15s; text-decoration: none; display: inline-block;
}
.btn:hover { background: var(--blue-dark); }
.btn:disabled { opacity: .55; cursor: default; }
.btn.ghost { background: #fff; color: var(--text); border: 1px solid var(--border); padding: 9px 16px; font-size: 14px; font-weight: 500; }
.btn.ghost:hover { background: #f3f5f8; }

/* ===== 首屏 ===== */
.hero {
  text-align: center; padding: 60px 16px 40px; margin: 0 -20px 8px;
  background:
    radial-gradient(1100px 420px at 50% -150px, #e6efff 0%, rgba(230,239,255,0) 70%),
    linear-gradient(180deg, #fbfcff 0%, var(--bg) 100%);
}
.eyebrow {
  display: inline-block; font-size: 12.5px; color: var(--blue); background: #e9f1ff;
  border: 1px solid #d3e3ff; border-radius: 999px; padding: 5px 14px; margin-bottom: 16px; font-weight: 600;
}
.hero h1 {
  font-size: 36px; line-height: 1.2; margin: 0 0 14px;
  background: linear-gradient(120deg, #1f6feb, #5b9bff); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { color: #4a5568; font-size: 16px; max-width: 600px; margin: 0 auto 26px; }
.hero-form {
  display: flex; align-items: center; gap: 8px; max-width: 600px; margin: 0 auto;
  background: #fff; padding: 8px 8px 8px 16px; border-radius: 16px; box-shadow: var(--shadow-lg); border: 1px solid var(--border);
}
.hf-ico { font-size: 18px; opacity: .55; }
.hero-form input { flex: 1; border: none; font-size: 16px; padding: 11px 6px; background: transparent; }
.hero-form input:focus { outline: none; }
.hero-form .btn { border-radius: 12px; }

.examples { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px; margin: 18px auto 0; max-width: 660px; }
.ex-label { font-size: 13px; color: var(--muted); }
.ex-chip { font-size: 13px; border: 1px solid var(--border); background: #fff; border-radius: 999px; padding: 5px 13px; cursor: pointer; color: #3a4759; transition: all .15s; }
.ex-chip:hover { border-color: var(--blue); color: var(--blue); }

.features { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 26px auto 0; max-width: 680px; }
.feature { display: flex; align-items: center; gap: 7px; background: #fff; border: 1px solid var(--border); border-radius: 999px; padding: 7px 14px; font-size: 13px; color: #44505f; box-shadow: var(--shadow); }
.feature .fi { font-size: 14px; }

/* ===== 三步说明 ===== */
.how { display: flex; align-items: stretch; gap: 10px; justify-content: center; flex-wrap: wrap; margin: 8px 0 0; }
.how-step { flex: 1; min-width: 210px; display: flex; gap: 12px; align-items: flex-start; background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 16px; box-shadow: var(--shadow); }
.how-num { width: 28px; height: 28px; border-radius: 50%; background: var(--blue); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px; flex-shrink: 0; }
.how-t { font-weight: 600; font-size: 14px; }
.how-d { font-size: 12.5px; color: var(--muted); margin-top: 2px; }
.how-arrow { display: flex; align-items: center; color: #b7c0cf; font-size: 20px; }
@media (max-width: 700px) { .how-arrow { display: none; } }

/* ===== 卡片 ===== */
.card { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 20px 24px; margin-bottom: 16px; box-shadow: var(--shadow); }
.card h2 { margin: 0 0 14px; font-size: 16px; display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.card h2 .sub { font-weight: 400; color: var(--muted); font-size: 12.5px; }
.card.center { text-align: center; }

/* ===== 加载页 ===== */
.card.loading { text-align: center; padding: 36px 24px 30px; }
.card.loading h2 { display: block; font-size: 18px; margin: 0 0 4px; }
.load-orb { position: relative; width: 60px; height: 60px; margin: 4px auto 18px; }
.load-orb::before, .load-orb::after { content: ""; position: absolute; inset: 0; border-radius: 50%; background: var(--blue); opacity: .28; animation: pulse 1.8s ease-out infinite; }
.load-orb::after { animation-delay: .9s; }
.orb-core { position: absolute; inset: 19px; border-radius: 50%; background: var(--blue); box-shadow: 0 4px 12px rgba(31,111,235,.4); }
@keyframes pulse { 0% { transform: scale(.55); opacity: .4; } 100% { transform: scale(1.7); opacity: 0; } }

.steps { display: flex; flex-direction: column; gap: 0; margin: 18px auto 0; max-width: 320px; text-align: left; }
.step { display: flex; align-items: center; gap: 13px; padding: 9px 0; position: relative; }
.step:not(:last-child)::after { content: ""; position: absolute; left: 13px; top: 32px; bottom: -5px; width: 2px; background: var(--border); }
.step.done:not(:last-child)::after { background: var(--blue); }
.step-ico { width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; z-index: 1; }
.step.done .step-ico { background: var(--blue); color: #fff; }
.step.active .step-ico { background: #fff; border: 2px solid var(--blue); }
.step.todo .step-ico { background: #eef1f5; color: var(--muted); }
.step-tx { font-size: 14px; }
.step.todo .step-tx { color: var(--muted); }
.step.active .step-tx { font-weight: 600; }
.sp { width: 14px; height: 14px; border-radius: 50%; border: 2px solid #cfe0ff; border-top-color: var(--blue); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.fail-card .fail-ico { font-size: 42px; margin-bottom: 4px; }
.fail-card .btn { margin-top: 10px; }

/* ===== 报告头 ===== */
.report-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; margin: 26px 0 18px; flex-wrap: wrap; }
.rh-eyebrow { font-size: 12.5px; color: var(--blue); font-weight: 600; margin-bottom: 4px; }
.report-head h1 { font-size: 24px; margin: 0; word-break: break-word; }

.correction { display: flex; gap: 12px; align-items: flex-start; background: #eef4ff; border: 1px solid #d6e4ff; border-radius: 14px; padding: 14px 16px; margin-bottom: 16px; font-size: 14px; color: #2a4a7a; line-height: 1.7; }
.corr-ico { font-size: 18px; color: var(--blue); flex-shrink: 0; }

/* ===== 指标卡片 ===== */
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 16px; }
.metric { display: flex; gap: 14px; align-items: flex-start; background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 16px 18px; box-shadow: var(--shadow); }
.m-ico { width: 40px; height: 40px; border-radius: 11px; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; background: #eef1f5; }
.m-body { min-width: 0; }
.m-label { font-size: 13px; color: var(--muted); }
.m-value { font-size: 24px; font-weight: 800; margin: 2px 0; line-height: 1.2; word-break: break-word; }
.m-sub { font-size: 12px; color: var(--muted); word-break: break-word; }
.m-blue .m-ico { background: #e7f0ff; } .m-teal .m-ico { background: #dff5f0; }
.m-amber .m-ico { background: #fdf0d9; } .m-purple .m-ico { background: #efeaff; }
.m-good .m-ico { background: #e6f6ec; } .m-bad .m-ico { background: #fdecec; }
.m-mid .m-ico { background: #fdf0d9; } .m-na .m-ico { background: #eef1f5; }
.m-accent { background: linear-gradient(135deg, #eef4ff, #f7faff); border-color: #cfe0ff; }
.m-accent .m-ico { background: #dbe8ff; }
.m-accent .m-value { color: var(--blue-dark); }
@media (max-width: 760px) { .metric-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 440px) { .metric-grid { grid-template-columns: 1fr; } }

/* ===== 趋势面积图 ===== */
.spark { display: block; width: 100%; }
.spark-foot { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); margin-top: 8px; }
.spark-foot span:nth-child(2) { color: #3a4759; }

/* ===== 国家分布 ===== */
.cbars { display: flex; flex-direction: column; gap: 3px; }
.cbar { display: flex; align-items: center; gap: 12px; padding: 6px 0; font-size: 14px; }
.cbar-rank { width: 22px; height: 22px; border-radius: 6px; background: #eef1f5; color: var(--muted); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.cbar:nth-child(-n+3) .cbar-rank { background: #e7f0ff; color: var(--blue); }
.cbar-name { width: 84px; flex-shrink: 0; }
.cbar-track { flex: 1; background: #eef1f5; border-radius: 6px; height: 12px; overflow: hidden; }
.cbar-track > i { display: block; height: 100%; border-radius: 6px; background: linear-gradient(90deg, #5b9bff, #1f6feb); }
.cbar-val { width: 34px; text-align: right; color: var(--muted); font-size: 13px; }

/* ===== 询盘成本三档 ===== */
.cpl-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 4px; }
.cpl { position: relative; text-align: center; border: 1px solid var(--border); border-radius: 14px; padding: 20px 14px 16px; background: #fbfcff; }
.cpl.rec { border-color: var(--blue); box-shadow: 0 0 0 3px #e7f0ff; background: #fff; }
.cpl-tag { position: absolute; top: -11px; left: 50%; transform: translateX(-50%); background: var(--blue); color: #fff; font-size: 11px; font-weight: 600; padding: 2px 12px; border-radius: 999px; white-space: nowrap; }
.cpl-name { font-size: 13px; color: var(--muted); }
.cpl-val { font-size: 27px; font-weight: 800; margin: 4px 0; color: var(--text); }
.cpl.rec .cpl-val { color: var(--blue); }
.cpl-sub { font-size: 12px; color: var(--muted); }
@media (max-width: 560px) { .cpl-row { grid-template-columns: 1fr; } }

/* ===== 分析师速览 ===== */
.summary { border-left: 4px solid var(--blue); }
.sum-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.sum-head h2 { margin: 0; }
.sum-ico { font-size: 18px; }
.summary p { margin: 0; font-size: 15px; line-height: 1.85; color: #2c3645; }

/* ===== 锁定区 / 解锁门 ===== */
.locked-zone { position: relative; display: grid; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: #fff; margin-bottom: 16px; box-shadow: var(--shadow); }
.locked-preview { grid-area: 1 / 1; padding: 22px 24px; filter: blur(6px); opacity: .5; pointer-events: none; user-select: none; }
.lock-gate { grid-area: 1 / 1; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 36px 24px; background: linear-gradient(180deg, rgba(244,246,251,.55) 0%, rgba(244,246,251,.92) 42%); }
.lg-taste { display: flex; flex-direction: column; gap: 3px; align-items: center; background: #eef4ff; border: 1px solid #cfe0ff; border-radius: 12px; padding: 12px 20px; margin-bottom: 14px; max-width: 460px; }
.lg-taste-cap { font-size: 12px; color: var(--muted); }
.lg-taste-num { font-size: 16px; color: var(--text); }
.lg-taste-num b { color: var(--blue); font-size: 19px; }
.lg-badge { font-size: 13px; font-weight: 600; color: var(--blue); background: #e9f1ff; border: 1px solid #d3e3ff; border-radius: 999px; padding: 5px 14px; }
.lg-badge.done { color: var(--green); background: #eaf7ee; border-color: #c6ecd0; }
.lock-gate h2 { font-size: 21px; margin: 12px 0 8px; max-width: 540px; }
.lg-desc { font-size: 14.5px; color: #4a5568; max-width: 540px; margin: 0 0 16px; line-height: 1.7; }
.lg-list { text-align: left; max-width: 460px; width: 100%; margin: 0 0 20px; padding: 0; list-style: none; display: grid; gap: 8px; }
.lg-list li { font-size: 14px; color: #2c3645; padding-left: 26px; position: relative; }
.lg-list li::before { content: "🔒"; position: absolute; left: 0; top: 0; font-size: 13px; }
.lock-gate .lead-form { display: flex; gap: 10px; width: 100%; max-width: 480px; }
.lock-gate .lead-form input { flex: 1; border: 1px solid var(--border); border-radius: 10px; padding: 13px 14px; font-size: 15px; background: #fff; }
.lock-gate .lead-form input:focus { outline: none; border-color: var(--blue); }
.lock-gate .lead-form .btn { white-space: nowrap; }
.lock-gate .err { margin-top: 8px; }
.lg-trust { font-size: 12px; color: var(--muted); margin-top: 14px; max-width: 540px; }
@media (max-width: 560px) { .lock-gate .lead-form { flex-direction: column; } .lock-gate { padding: 28px 18px; } }

/* 锁定区里的模糊骨架（仅展示结构，无真实数据）*/
.lp-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 20px; }
.lp-card { border: 1px solid var(--border); border-radius: 14px; padding: 16px 18px; }
.lp-cap { font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.lp-num { height: 26px; width: 72%; background: #e6e9f0; border-radius: 6px; }
.lp-block { margin-bottom: 20px; }
.lp-h { font-size: 15px; color: var(--blue); font-weight: 600; margin-bottom: 12px; }
.lp-row { display: flex; gap: 14px; margin-bottom: 11px; }
.lp-bar { height: 14px; background: #e6e9f0; border-radius: 6px; display: inline-block; }
.lp-crow { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.lp-pill { width: 72px; height: 14px; background: #e6e9f0; border-radius: 6px; flex-shrink: 0; }
.lp-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.lp-chip { height: 26px; background: #e6e9f0; border-radius: 999px; }
/* 打码占位：询盘成本数值 / 国家名 */
.masked-bar { display: inline-block; width: 84px; height: 24px; background: #e0e4ec; border-radius: 6px; filter: blur(3px); vertical-align: middle; }
.m-value .masked-bar { height: 22px; }
.masked-pill { width: 84px; height: 14px; background: #e0e4ec; border-radius: 6px; flex-shrink: 0; filter: blur(2px); }
.masked-row .cbar-track > i { background: #dfe3ea; filter: blur(1.5px); }
.lp-srow { margin-bottom: 9px; }
.cbar.more { color: var(--muted); font-size: 13px; padding-top: 8px; }

.err { color: var(--red); font-size: 13px; min-height: 20px; margin: 10px 0 0; text-align: center; }
.disclaimer { color: var(--muted); font-size: 12px; margin: 6px 0; line-height: 1.6; }

/* ===== 页脚 ===== */
.site-foot { text-align: center; color: var(--muted); font-size: 13px; padding: 28px 16px 44px; }
.site-foot a { color: var(--muted); }
.site-foot a:hover { color: var(--blue); }
.foot-sep { margin: 0 8px; opacity: .5; }

@media (max-width: 600px) {
  .hero { padding: 44px 12px 32px; }
  .hero h1 { font-size: 27px; }
  .hero-form { flex-direction: column; align-items: stretch; padding: 12px; gap: 10px; }
  .hf-ico { display: none; }
  .hero-form .btn { width: 100%; }
  .nav { padding: 12px 16px; }
  .report-head h1 { font-size: 21px; }
}