/* 广西江晚网络科技 - 商务版企业官网 */

:root {
  --navy: #1a2332;
  --navy-light: #243044;
  --navy-dark: #111822;
  --gold: #c9a227;
  --gold-light: #dbb94a;
  --gold-dark: #a8861f;
  --text: #2c3e50;
  --text-muted: #6b7c93;
  --text-light: #94a3b8;
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --bg-muted: #eef1f5;
  --border: #dde3ea;
  --shadow: 0 2px 16px rgba(26, 35, 50, 0.06);
  --shadow-md: 0 8px 32px rgba(26, 35, 50, 0.1);
  --wrap: 1180px;
  --header-h: 76px;
  --topbar-h: 40px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  line-height: 1.7;
  background: var(--bg);
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 28px;
}

a { text-decoration: none; color: inherit; transition: color 0.25s; }

/* ========== 顶栏 ========== */
.topbar {
  height: var(--topbar-h);
  background: var(--navy-dark);
  color: rgba(255, 255, 255, 0.65);
  font-size: 13px;
}

.topbar-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar a:hover { color: var(--gold-light); }
.topbar .divider { opacity: 0.3; }

/* ========== 导航 ========== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: #fff;
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}

.header.scrolled { box-shadow: var(--shadow); }

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 40px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.brand-mark {
  width: 44px;
  height: 44px;
  background: var(--navy);
  color: var(--gold);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(201, 162, 39, 0.3);
}

.brand-text strong {
  display: block;
  font-size: 17px;
  color: var(--navy);
  letter-spacing: 1px;
}

.brand-text small {
  font-size: 10px;
  color: var(--text-light);
  letter-spacing: 2px;
}

.nav {
  display: flex;
  gap: 4px;
  flex: 1;
}

.nav a {
  padding: 8px 16px;
  font-size: 14px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.nav a:hover { color: var(--navy); }

.btn-consult {
  padding: 10px 24px;
  background: var(--navy);
  color: #fff;
  font-size: 14px;
  letter-spacing: 1px;
  border: 1px solid var(--navy);
  transition: all 0.25s;
  flex-shrink: 0;
}

.btn-consult:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--navy-dark);
}

.menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-btn span {
  width: 22px;
  height: 2px;
  background: var(--navy);
}

/* ========== 按钮 ========== */
.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background: var(--gold);
  color: var(--navy-dark);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  border: none;
  cursor: pointer;
  transition: all 0.25s;
}

.btn-primary:hover {
  background: var(--gold-light);
}

.btn-primary.full { width: 100%; text-align: center; }

.btn-secondary {
  display: inline-block;
  padding: 14px 32px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #fff;
  font-size: 14px;
  letter-spacing: 1px;
  transition: all 0.25s;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  background: var(--navy);
  color: #fff;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(26, 35, 50, 0.95) 0%, rgba(36, 48, 68, 0.9) 100%),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 80px,
      rgba(201, 162, 39, 0.03) 80px,
      rgba(201, 162, 39, 0.03) 81px
    );
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  padding: 100px 28px 80px;
}

.hero-eyebrow {
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--gold);
  margin-bottom: 24px;
}

.hero-copy h1 {
  font-size: clamp(32px, 4.5vw, 48px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.hero-lead {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.72);
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.9;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-panel {
  display: flex;
  justify-content: flex-end;
}

.panel-card {
  width: 100%;
  max-width: 400px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 32px;
  backdrop-filter: blur(8px);
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
}

.panel-head em {
  font-style: normal;
  color: var(--gold);
  font-weight: 600;
}

.panel-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  list-style: none;
  margin-bottom: 28px;
}

.panel-stats strong {
  display: block;
  font-size: 32px;
  font-weight: 600;
  color: #fff;
  line-height: 1.2;
}

.panel-stats span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

.panel-bar {
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  margin-bottom: 12px;
}

.bar-fill {
  height: 100%;
  width: 0;
  background: var(--gold);
  transition: width 2s ease;
}

.panel-bar.animated .bar-fill { width: 98.6%; }

.panel-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ========== 信任背书 ========== */
.trust {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  padding: 28px 0;
}

.trust-inner {
  text-align: center;
}

.trust-inner > p {
  font-size: 13px;
  color: var(--text-light);
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.trust-logos {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 32px;
}

.trust-logos span {
  font-size: 14px;
  color: var(--text-muted);
  letter-spacing: 1px;
  position: relative;
}

.trust-logos span:not(:last-child)::after {
  content: "·";
  position: absolute;
  right: -20px;
  color: var(--border);
}

/* ========== 通用区块头 ========== */
.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-head .label {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 4px;
  color: var(--gold-dark);
  margin-bottom: 12px;
}

.section-head .label.light { color: var(--gold-light); }

.section-head h2 {
  font-size: clamp(26px, 3.5vw, 34px);
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.section-head p {
  font-size: 15px;
  color: var(--text-muted);
}

.section-head.light h2 { color: #fff; }
.section-head.light p { color: rgba(255, 255, 255, 0.65); }

/* ========== 关于我们 ========== */
.about {
  padding: 96px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: start;
}

.about-text h3 {
  font-size: 22px;
  color: var(--navy);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.about-text p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.9;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.about-tags span {
  padding: 6px 16px;
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-cards article {
  padding: 24px 28px;
  background: var(--bg-soft);
  border-left: 3px solid var(--gold);
}

.about-cards h4 {
  font-size: 15px;
  color: var(--navy);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.about-cards p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ========== 核心业务 ========== */
.services {
  padding: 96px 0;
  background: var(--navy);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.service-item {
  background: var(--navy);
  padding: 36px 32px;
  transition: background 0.3s;
}

.service-item:hover {
  background: var(--navy-light);
}

.service-num {
  font-size: 13px;
  color: var(--gold);
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.service-item h3 {
  font-size: 18px;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.service-item > p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 20px;
  line-height: 1.8;
}

.service-item ul {
  list-style: none;
}

.service-item li {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  padding: 6px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.service-item li::before {
  content: "—";
  margin-right: 8px;
  color: var(--gold);
}

/* ========== 服务流程 ========== */
.process {
  padding: 96px 0;
  background: var(--bg-soft);
}

.process-track {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.process-step {
  flex: 1;
  max-width: 180px;
  text-align: center;
}

.step-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  background: var(--navy);
  color: var(--gold);
  font-size: 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--gold);
}

.process-step h4 {
  font-size: 15px;
  color: var(--navy);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.process-step p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

.process-line {
  width: 40px;
  height: 2px;
  background: var(--border);
  margin-top: 24px;
  flex-shrink: 0;
}

/* ========== 成功案例 ========== */
.cases {
  padding: 96px 0;
}

.case-list {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.case-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 40px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
}

.case-row.reverse { direction: rtl; }
.case-row.reverse > * { direction: ltr; }

.case-tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--gold-dark);
  border: 1px solid var(--gold);
  padding: 3px 12px;
  margin-bottom: 16px;
}

.case-meta h3 {
  font-size: 22px;
  color: var(--navy);
  margin-bottom: 14px;
  letter-spacing: 1px;
  line-height: 1.4;
}

.case-meta > p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 24px;
}

.case-metrics {
  display: flex;
  gap: 32px;
}

.case-metrics strong {
  display: block;
  font-size: 26px;
  color: var(--navy);
  font-weight: 600;
}

.case-metrics span {
  font-size: 12px;
  color: var(--text-light);
  letter-spacing: 1px;
}

.case-visual {
  height: 260px;
  background: var(--bg-muted);
  border: 1px solid var(--border);
}

.case-visual.v1 { background: linear-gradient(160deg, #e8edf3 0%, #c5d0de 100%); }
.case-visual.v2 { background: linear-gradient(160deg, #edf0e8 0%, #c8d4c0 100%); }
.case-visual.v3 { background: linear-gradient(160deg, #ede8e3 0%, #d4c8bc 100%); }

/* ========== 企业动态 ========== */
.news {
  padding: 96px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
}

.news-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 20px;
}

.news-card {
  background: #fff;
  border: 1px solid var(--border);
  padding: 28px;
  transition: box-shadow 0.3s;
}

.news-card:hover { box-shadow: var(--shadow-md); }

.news-card.featured {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
}

.news-card time {
  font-size: 12px;
  color: var(--text-light);
  letter-spacing: 1px;
}

.news-card h3 {
  font-size: 16px;
  color: var(--navy);
  margin: 12px 0;
  line-height: 1.6;
  letter-spacing: 0.5px;
}

.news-card.featured h3 { font-size: 20px; }

.news-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  flex: 1;
  margin-bottom: 16px;
}

.news-card a {
  font-size: 13px;
  color: var(--gold-dark);
  letter-spacing: 1px;
}

.news-card a:hover { color: var(--gold); }

/* ========== 联系 ========== */
.contact {
  padding: 96px 0;
  background: var(--navy);
  color: #fff;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info h2 {
  font-size: 32px;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.contact-info > p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 36px;
}

.contact-list {
  list-style: none;
}

.contact-list li {
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.contact-list strong {
  display: block;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--gold);
  margin-bottom: 4px;
}

.contact-list span {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
}

.contact-form {
  background: #fff;
  padding: 40px;
  color: var(--text);
}

.contact-form h3 {
  font-size: 20px;
  color: var(--navy);
  letter-spacing: 1px;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.field { margin-bottom: 20px; }

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: var(--bg-soft);
  transition: border-color 0.25s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--navy);
  background: #fff;
}

.field textarea { resize: vertical; }

.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
  cursor: pointer;
}

.checkbox input { width: auto; }

/* ========== 页脚 ========== */
.footer {
  background: var(--navy-dark);
  color: rgba(255, 255, 255, 0.55);
  padding-top: 56px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand p {
  font-size: 13px;
  margin-top: 16px;
  line-height: 1.8;
}

.footer-brand .brand-text strong { color: #fff; }

.footer-col h4 {
  font-size: 13px;
  color: #fff;
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.footer-col a,
.footer-col p {
  display: block;
  font-size: 13px;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-col a:hover { color: var(--gold-light); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 28px;
  font-size: 12px;
}

.beian a {
  color: rgba(255, 255, 255, 0.45);
}

.beian a:hover { color: var(--gold-light); }

/* ========== Toast ========== */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--navy);
  color: #fff;
  padding: 14px 32px;
  font-size: 14px;
  letter-spacing: 0.5px;
  border-left: 3px solid var(--gold);
  opacity: 0;
  transition: all 0.4s;
  z-index: 200;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .hero-inner,
  .about-grid,
  .contact-grid,
  .case-row {
    grid-template-columns: 1fr;
  }

  .case-row.reverse { direction: ltr; }

  .service-grid { grid-template-columns: 1fr 1fr; }

  .news-grid {
    grid-template-columns: 1fr 1fr;
  }

  .news-card.featured { grid-row: auto; }

  .footer-top { grid-template-columns: 1fr 1fr; }

  .process-track { flex-wrap: wrap; gap: 24px; }
  .process-line { display: none; }
}

@media (max-width: 768px) {
  .topbar { display: none; }

  .nav, .btn-consult { display: none; }

  .menu-btn { display: flex; margin-left: auto; }

  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: #fff;
    padding: 16px 28px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
  }

  .service-grid { grid-template-columns: 1fr; }

  .news-grid { grid-template-columns: 1fr; }

  .field-row { grid-template-columns: 1fr; }

  .footer-top { grid-template-columns: 1fr; }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  .case-metrics { gap: 20px; }
}