* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #0a0e17;
  --bg2: #111827;
  --bg3: #1a2233;
  --card: #151d2e;
  --border: #243049;
  --text: #e8eefc;
  --text2: #8fa3c8;
  --gold: #f5b942;
  --cyan: #2ee6d6;
  --red: #ff4d5e;
  --green: #22c77a;
  --blue: #3b82f6;
}
body {
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }

.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,14,23,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center;
  padding: 0 20px; height: 64px; gap: 20px;
}
.role-selector {
  position: relative;
  display: flex; align-items: center; gap: 8px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 14px;
  cursor: pointer;
  transition: all .2s;
  min-width: 150px;
}
.role-selector:hover { border-color: var(--gold); }
.role-selector .role-icon { font-size: 18px; }
.role-selector .role-name { font-size: 14px; font-weight: 600; }
.role-selector .arrow { margin-left: auto; font-size: 10px; color: var(--text2); }
.role-dropdown {
  position: absolute; top: 110%; left: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;
  min-width: 220px;
  display: none;
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  z-index: 1001;
}
.role-dropdown.open { display: block; }
.role-option {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: 8px;
  transition: background .15s;
  cursor: pointer;
}
.role-option:hover { background: var(--bg3); }
.role-option.active { background: rgba(245,185,66,0.12); }
.role-option .ro-icon { font-size: 20px; }
.role-option .ro-info { display: flex; flex-direction: column; }
.role-option .ro-name { font-size: 14px; font-weight: 600; }
.role-option .ro-desc { font-size: 11px; color: var(--text2); }

.logo {
  font-size: 20px; font-weight: 800;
  background: linear-gradient(90deg, var(--gold), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  white-space: nowrap;
}
.nav-menu { display: flex; gap: 22px; margin-left: 10px; }
.nav-menu a {
  font-size: 14px; color: var(--text2); transition: color .2s;
  padding: 4px 0; border-bottom: 2px solid transparent;
}
.nav-menu a:hover, .nav-menu a.active {
  color: var(--text); border-bottom-color: var(--gold);
}
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.search-box {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; padding: 7px 12px; width: 220px;
}
.search-box input {
  background: none; border: none; outline: none;
  color: var(--text); font-size: 13px; width: 100%;
}
.search-box input::placeholder { color: var(--text2); }
.btn-login {
  background: linear-gradient(90deg, var(--gold), #e0a52e);
  color: #1a1200; border: none; border-radius: 8px;
  padding: 8px 18px; font-size: 13px; font-weight: 700;
}
.ticker-bar {
  position: fixed; top: 64px; left: 0; right: 0; z-index: 999;
  background: var(--bg2); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 28px;
  padding: 7px 20px; font-size: 12px; overflow-x: auto;
  white-space: nowrap;
}
.ticker-item { display: flex; gap: 6px; align-items: center; }
.ticker-item .t-name { color: var(--text2); }
.ticker-item .t-up { color: var(--red); }
.ticker-item .t-down { color: var(--green); }

.page { display: none; }
.page.active { display: block; }
#home { padding-top: 96px; }

.hero {
  position: relative; height: 520px; overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.slide {
  position: absolute; inset: 0;
  opacity: 0; transition: opacity 1s ease;
  display: flex; align-items: center;
  padding: 0 8%;
}
.slide.active { opacity: 1; z-index: 1; }
.slide-bg {
  position: absolute; inset: 0; z-index: -1;
  background-size: cover; background-position: center;
}
.slide-1 .slide-bg { background: linear-gradient(135deg, #0f2027, #203a43, #2c5364); }
.slide-2 .slide-bg { background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d); }
.slide-3 .slide-bg { background: linear-gradient(135deg, #0f0c29, #302b63, #24243e); }
.slide-4 .slide-bg { background: linear-gradient(135deg, #134e5e, #71b280); }
.slide-5 .slide-bg { background: linear-gradient(135deg, #3a1c71, #d76d77, #ffaf7b); }
.slide::after {
  content: ''; position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(90deg, rgba(10,14,23,0.92) 0%, rgba(10,14,23,0.6) 60%, rgba(10,14,23,0.2) 100%);
}
.slide-content { position: relative; z-index: 1; max-width: 620px; }
.slide-tag {
  display: inline-block; font-size: 12px; letter-spacing: 2px;
  color: var(--gold); border: 1px solid var(--gold);
  padding: 4px 12px; border-radius: 20px; margin-bottom: 18px;
}
.slide-title { font-size: 44px; font-weight: 800; line-height: 1.2; margin-bottom: 16px; }
.slide-title span { color: var(--gold); }
.slide-desc { font-size: 16px; color: var(--text2); margin-bottom: 28px; max-width: 500px; }
.slide-btns { display: flex; gap: 14px; }
.btn-primary {
  background: linear-gradient(90deg, var(--gold), #e0a52e);
  color: #1a1200; border: none; border-radius: 10px;
  padding: 13px 28px; font-size: 15px; font-weight: 700;
  transition: transform .2s;
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost {
  background: transparent; color: var(--text);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 13px 28px; font-size: 15px; font-weight: 600;
  transition: all .2s;
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.hero-dots {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; z-index: 2;
}
.hero-dots .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,0.3); cursor: pointer; transition: all .3s;
}
.hero-dots .dot.active { background: var(--gold); width: 28px; border-radius: 5px; }

.section { padding: 64px 8%; }
.section-head { text-align: center; margin-bottom: 44px; }
.section-tag {
  font-size: 12px; letter-spacing: 3px; color: var(--gold);
  text-transform: uppercase; margin-bottom: 10px;
}
.section-title { font-size: 32px; font-weight: 800; margin-bottom: 12px; }
.section-sub { color: var(--text2); font-size: 15px; max-width: 620px; margin: 0 auto; }

.tools-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.tool-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 24px;
  transition: all .25s; cursor: pointer; position: relative; overflow: hidden;
}
.tool-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--cyan));
  transform: scaleX(0); transform-origin: left; transition: transform .3s;
}
.tool-card:hover { transform: translateY(-6px); border-color: var(--gold); box-shadow: 0 18px 36px rgba(0,0,0,0.4); }
.tool-card:hover::before { transform: scaleX(1); }
.tool-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: var(--bg3); display: flex; align-items: center;
  justify-content: center; font-size: 24px; margin-bottom: 16px;
}
.tool-name { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.tool-desc { font-size: 13px; color: var(--text2); margin-bottom: 16px; }
.tool-link { font-size: 13px; color: var(--gold); font-weight: 600; }

.dashboard { background: var(--bg2); }
.index-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px; margin-bottom: 32px;
}
.index-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 18px;
}
.index-name { font-size: 13px; color: var(--text2); margin-bottom: 8px; }
.index-value { font-size: 24px; font-weight: 800; margin-bottom: 4px; }
.index-change { font-size: 13px; font-weight: 600; }
.up { color: var(--red); }
.down { color: var(--green); }
.chart-grid {
  display: grid; grid-template-columns: 2fr 1fr; gap: 20px;
}
.chart-box {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 20px;
}
.chart-box h3 { font-size: 15px; margin-bottom: 16px; }
canvas { width: 100%; display: block; }

.learn-grid {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 24px;
}
.article-list { display: flex; flex-direction: column; gap: 16px; }
.article-item {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px; transition: all .2s; cursor: pointer;
}
.article-item:hover { border-color: var(--cyan); transform: translateX(4px); }
.article-tag {
  display: inline-block; font-size: 11px; color: var(--cyan);
  border: 1px solid var(--cyan); padding: 2px 10px;
  border-radius: 10px; margin-bottom: 10px;
}
.article-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.article-summary { font-size: 13px; color: var(--text2); }
.side-panel {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 22px;
}
.side-panel h3 { font-size: 15px; margin-bottom: 16px; }
.formula-item {
  padding: 12px 0; border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.formula-item:last-child { border-bottom: none; }
.formula-item .f-name { color: var(--text2); margin-bottom: 4px; font-size: 12px; }
.formula-item .f-val { font-family: monospace; color: var(--gold); font-size: 14px; }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  text-align: center;
}
.stat-num {
  font-size: 38px; font-weight: 800;
  background: linear-gradient(90deg, var(--gold), var(--cyan));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label { font-size: 13px; color: var(--text2); margin-top: 6px; }

footer {
  background: var(--bg2); border-top: 1px solid var(--border);
  padding: 48px 8% 24px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  gap: 32px; margin-bottom: 36px;
}
.footer-brand p { font-size: 13px; color: var(--text2); margin-top: 12px; }
.footer-col h4 { font-size: 14px; margin-bottom: 16px; }
.footer-col a {
  display: block; font-size: 13px; color: var(--text2);
  margin-bottom: 10px; transition: color .2s;
}
.footer-col a:hover { color: var(--gold); }
.subscribe { display: flex; gap: 8px; margin-top: 12px; }
.subscribe input {
  flex: 1; background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; padding: 9px 12px; color: var(--text);
  font-size: 13px; outline: none;
}
.subscribe button {
  background: var(--gold); color: #1a1200; border: none;
  border-radius: 8px; padding: 9px 16px; font-weight: 700; font-size: 13px;
}
.footer-bottom {
  border-top: 1px solid var(--border); padding-top: 20px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 12px; color: var(--text2);
}

.workspace { padding: 120px 8% 64px; }
.ws-header {
  display: flex; align-items: center; gap: 20px;
  margin-bottom: 32px; flex-wrap: wrap;
}
.ws-avatar {
  width: 64px; height: 64px; border-radius: 16px;
  background: var(--bg3); display: flex; align-items: center;
  justify-content: center; font-size: 32px;
  border: 1px solid var(--border);
}
.ws-title h1 { font-size: 28px; font-weight: 800; }
.ws-title p { font-size: 14px; color: var(--text2); }
.ws-stats { margin-left: auto; display: flex; gap: 28px; }
.ws-stat { text-align: right; }
.ws-stat .n { font-size: 22px; font-weight: 800; color: var(--gold); }
.ws-stat .l { font-size: 12px; color: var(--text2); }
.ws-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px; margin-bottom: 32px;
}
.ws-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 24px;
  transition: all .2s;
}
.ws-card:hover { border-color: var(--gold); transform: translateY(-4px); }
.ws-card .wc-icon { font-size: 28px; margin-bottom: 12px; }
.ws-card .wc-title { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.ws-card .wc-desc { font-size: 13px; color: var(--text2); margin-bottom: 14px; }
.ws-card .wc-btn {
  background: var(--bg3); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 16px; font-size: 13px; font-weight: 600;
}
.ws-card .wc-btn:hover { background: var(--gold); color: #1a1200; border-color: var(--gold); }

.calc-page { padding: 120px 8% 64px; }
.calc-back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; color: var(--text2); margin-bottom: 20px;
  cursor: pointer;
}
.calc-back:hover { color: var(--gold); }
.calc-title { font-size: 30px; font-weight: 800; margin-bottom: 8px; }
.calc-sub { color: var(--text2); margin-bottom: 32px; }
.calc-layout {
  display: grid; grid-template-columns: 1fr 1.2fr; gap: 24px;
}
.calc-form {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 26px;
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-size: 13px; color: var(--text2);
  margin-bottom: 6px;
}
.form-group input, .form-group select {
  width: 100%; background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; padding: 11px 14px; color: var(--text);
  font-size: 14px; outline: none; transition: border .2s;
}
.form-group input:focus, .form-group select:focus { border-color: var(--gold); }
.calc-btn {
  width: 100%; background: linear-gradient(90deg, var(--gold), #e0a52e);
  color: #1a1200; border: none; border-radius: 10px;
  padding: 13px; font-size: 15px; font-weight: 700; margin-top: 8px;
}
.calc-btn:hover { opacity: 0.92; }
.calc-result {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 26px;
  min-height: 300px;
}
.result-cards {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 12px; margin-bottom: 22px;
}
.result-card {
  background: var(--bg3); border-radius: 10px; padding: 16px;
}
.result-card .rc-label { font-size: 12px; color: var(--text2); margin-bottom: 6px; }
.result-card .rc-value { font-size: 20px; font-weight: 800; color: var(--gold); word-break: break-all; }
.result-table {
  width: 100%; border-collapse: collapse; font-size: 13px;
  max-height: 260px; overflow-y: auto; display: block;
}
.result-table th, .result-table td {
  padding: 8px 10px; text-align: right;
  border-bottom: 1px solid var(--border);
}
.result-table th {
  color: var(--text2); font-weight: 600; font-size: 12px;
  position: sticky; top: 0; background: var(--card);
}
.result-table td:first-child, .result-table th:first-child { text-align: left; }
.disclaimer {
  margin-top: 24px; font-size: 12px; color: var(--text2);
  background: rgba(255,77,94,0.08); border-left: 3px solid var(--red);
  padding: 12px 16px; border-radius: 6px;
}

@media (max-width: 900px) {
  .nav-menu, .search-box { display: none; }
  .hero { height: 460px; }
  .slide-title { font-size: 30px; }
  .chart-grid, .learn-grid, .calc-layout { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .result-cards { grid-template-columns: 1fr; }
  .ws-stats { margin-left: 0; }
  .section { padding: 48px 5%; }
}

/* ===== 搜索下拉建议 ===== */
.search-box { position: relative; }
.search-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px;
  display: none;
  max-height: 320px;
  overflow-y: auto;
  box-shadow: 0 16px 40px rgba(0,0,0,0.55);
  z-index: 1100;
}
.search-dropdown.open { display: block; }
.search-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: 8px;
  cursor: pointer; font-size: 13px;
  transition: background .15s;
}
.search-item:hover { background: var(--bg3); }
.search-item .si-icon { font-size: 16px; }
.search-item .si-name { font-weight: 600; }
.search-item .si-tag {
  margin-left: auto; font-size: 11px; color: var(--text2);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 1px 7px;
}
.search-empty {
  padding: 14px 12px; text-align: center;
  font-size: 12px; color: var(--text2);
}


/* ===== 结果折线图容器 ===== */
.result-chart-box {
  background: var(--bg3);
  border-radius: 10px;
  padding: 16px;
  margin-top: 6px;
}

/* ===== 计算历史 ===== */
.history-box {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}
.history-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--text2);
}
.history-clear {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text2);
  border-radius: 6px;
  padding: 3px 10px;
  font-size: 11px;
  transition: all .2s;
}
.history-clear:hover {
  border-color: var(--red);
  color: var(--red);
}
.history-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.history-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: var(--bg3);
  border-radius: 8px;
  font-size: 12px;
  cursor: pointer;
  transition: all .2s;
}
.history-item:hover {
  background: rgba(245,185,66,0.08);
  transform: translateX(3px);
}
.history-item .hi-title {
  font-weight: 600;
  color: var(--gold);
  white-space: nowrap;
}
.history-item .hi-summary {
  color: var(--text2);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.history-item .hi-time {
  color: var(--text2);
  font-size: 11px;
  white-space: nowrap;
}