/* MT4 交易终端 — 深色机构交易桌面 */

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body {
  margin: 0;
  padding: 0;
  background: #070E18;
  color: #B8C0CC;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
}

img,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: #C9A227;
  text-decoration: none;
}

a:hover {
  color: #E0C35A;
}

h1, h2, h3, h4 {
  font-family: "Songti SC", "SimSun", serif;
  color: #F4F0E6;
  font-weight: 600;
  line-height: 1.35;
  margin: 0 0 16px;
}

h1 {
  font-size: 32px;
  letter-spacing: 0.02em;
}

h2 {
  font-size: 24px;
  border-left: 3px solid #C9A227;
  padding-left: 12px;
}

h3 {
  font-size: 18px;
}

p {
  margin: 0 0 14px;
}

ul, ol {
  margin: 0 0 16px;
  padding-left: 22px;
}

li {
  margin-bottom: 8px;
}

.wrap {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

/* —— 顶栏 —— */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: #0B1F3A;
  border-bottom: 1px solid #1C2E48;
}

.header-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #F4F0E6;
  font-family: "Songti SC", "SimSun", serif;
  font-size: 18px;
  letter-spacing: 0.04em;
}

.brand:hover {
  color: #F4F0E6;
}

.brand svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid #C9A227;
  border-radius: 4px;
  background: transparent;
  color: #C9A227;
  cursor: pointer;
}

.nav-toggle:hover {
  background: #C9A227;
  color: #070E18;
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
  margin: 0 auto;
}

.site-nav {
  display: flex;
  align-items: stretch;
  gap: 4px;
}

.site-nav a {
  position: relative;
  display: flex;
  align-items: center;
  padding: 20px 16px;
  color: #B8C0CC;
  font-size: 15px;
  letter-spacing: 0.06em;
}

.site-nav a:hover {
  color: #F4F0E6;
}

.site-nav a.active {
  color: #F4F0E6;
}

.site-nav a.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 2px;
  background: #C9A227;
}

.page-body {
  padding-top: 64px;
}

/* —— 按钮 —— */
.btn-gold,
.btn-line {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: 4px;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 15px;
  cursor: pointer;
  border: 1px solid #C9A227;
}

.btn-gold {
  background: #C9A227;
  color: #070E18;
}

.btn-gold:hover {
  background: #E0C35A;
  border-color: #E0C35A;
}

.btn-line {
  background: transparent;
  color: #C9A227;
}

.btn-line:hover {
  background: #C9A227;
  color: #070E18;
}

.btn-gold svg,
.btn-line svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 18px 0 8px;
}

/* —— Hero —— */
.hero {
  background: linear-gradient(180deg, #0B1F3A 0%, #070E18 100%);
  border-bottom: 1px solid #1C2E48;
  padding: 56px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.hero-kicker {
  color: #C9A227;
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.hero p {
  color: #B8C0CC;
}

.hero-note {
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid #C9A227;
  border-radius: 4px;
  background: rgba(201, 162, 39, 0.08);
  color: #F4F0E6;
  font-size: 14px;
}

.hero-chart {
  background: #101A2A;
  border: 1px solid #1C2E48;
  border-radius: 4px;
  padding: 16px;
}

.hero-chart svg {
  width: 100%;
  height: auto;
}

.chart-caption {
  margin: 10px 0 0;
  font-size: 12px;
  color: #8A93A3;
  text-align: right;
}

/* —— 通用区块 —— */
.section {
  padding: 48px 0;
}

.section-lead {
  max-width: 860px;
  margin-bottom: 24px;
}

.section-muted {
  background: #0A1422;
  border-top: 1px solid #1C2E48;
  border-bottom: 1px solid #1C2E48;
}

/* —— 能力卡 —— */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card {
  background: #101A2A;
  border: 1px solid #1C2E48;
  border-radius: 4px;
  padding: 22px 20px;
}

.feature-card .card-icon {
  width: 32px;
  height: 32px;
  margin-bottom: 12px;
  color: #C9A227;
}

.feature-card h3 {
  margin-bottom: 10px;
}

.feature-card p:last-child {
  margin-bottom: 0;
}

/* —— 下载入口 —— */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.platform-card {
  background: #101A2A;
  border: 1px solid #1C2E48;
  border-radius: 4px;
  padding: 22px 20px;
}

.platform-card.alert {
  border-color: #C9A227;
}

.platform-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.platform-head svg {
  width: 24px;
  height: 24px;
  color: #C9A227;
}

.platform-head h3 {
  margin: 0;
}

.file-tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 2px 8px;
  border: 1px solid #C9A227;
  border-radius: 4px;
  color: #C9A227;
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* —— 对比表 —— */
.compare-wrap {
  overflow-x: auto;
  border: 1px solid #1C2E48;
  border-radius: 4px;
  background: #101A2A;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.compare-table th,
.compare-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid #1C2E48;
  vertical-align: top;
}

.compare-table th {
  background: #0B1F3A;
  color: #F4F0E6;
  font-family: "Songti SC", "SimSun", serif;
  font-weight: 600;
}

.compare-table tr:last-child td {
  border-bottom: 0;
}

.compare-table td:first-child {
  color: #F4F0E6;
  width: 22%;
}

/* —— 两列 —— */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.split-panel {
  background: #101A2A;
  border: 1px solid #1C2E48;
  border-radius: 4px;
  padding: 22px 20px;
}

/* —— 规格 —— */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.spec-item {
  background: #101A2A;
  border: 1px solid #1C2E48;
  border-radius: 4px;
  padding: 18px 18px 8px;
}

.spec-item h3 {
  color: #C9A227;
  font-size: 16px;
}

/* —— 风险条 —— */
.risk-banner {
  background: #101A2A;
  border: 1px solid #1C2E48;
  border-left: 4px solid #C9A227;
  border-radius: 4px;
  padding: 20px 22px;
}

.risk-banner h2 {
  border-left: 0;
  padding-left: 0;
}

.risk-inline {
  margin: 20px 0 0;
}

/* —— FAQ —— */
.faq-list {
  display: grid;
  gap: 12px;
}

.faq-panel {
  background: #101A2A;
  border: 1px solid #1C2E48;
  border-radius: 4px;
  padding: 18px 20px;
}

.faq-panel h3 {
  color: #C9A227;
  margin-bottom: 8px;
}

.faq-panel p:last-child {
  margin-bottom: 0;
}

/* —— 文章页 —— */
.article-block {
  margin-bottom: 36px;
}

.article-block h3 {
  margin-top: 20px;
}

/* —— 步骤 —— */
.step-list {
  display: grid;
  gap: 14px;
}

.step-item {
  background: #101A2A;
  border: 1px solid #1C2E48;
  border-radius: 4px;
  padding: 18px 20px;
}

.step-num {
  color: #C9A227;
  font-family: "Songti SC", "SimSun", serif;
  font-size: 13px;
  letter-spacing: 0.12em;
  margin-bottom: 6px;
}

/* —— 页脚 —— */
.site-footer {
  background: #0B1F3A;
  border-top: 1px solid #1C2E48;
  padding: 36px 0 28px;
  color: #8A93A3;
  font-size: 13px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 18px;
}

.footer-nav a {
  color: #B8C0CC;
}

.footer-nav a.active {
  color: #C9A227;
}

.site-footer p {
  margin: 0 0 10px;
}

.site-footer p:last-child {
  margin-bottom: 0;
}

/* —— 窄屏 —— */
@media (max-width: 900px) {
  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: #0B1F3A;
    border-bottom: 1px solid #1C2E48;
    gap: 0;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 14px 20px;
    border-top: 1px solid #1C2E48;
  }

  .site-nav a.active::after {
    left: 20px;
    right: auto;
    width: 48px;
    bottom: 8px;
  }

  .hero-grid,
  .feature-grid,
  .platform-grid,
  .split-grid,
  .spec-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 36px 0 32px;
  }

  .section {
    padding: 36px 0;
  }
}

@media (max-width: 600px) {
  .wrap,
  .header-inner {
    width: calc(100% - 24px);
  }

  .btn-row {
    flex-direction: column;
    align-items: stretch;
  }
}