/* ============================================================
   Fivem 星途智联 — 全局样式
   配色：深空蓝 + 星光金 + 冷白
   ============================================================ */

:root {
  --c-bg:        #090e1a;
  --c-bg2:       #0d1526;
  --c-bg3:       #111d35;
  --c-surface:   #131e33;
  --c-border:    #1e2f4d;
  --c-gold:      #c8a84b;
  --c-gold2:     #e4c26e;
  --c-blue:      #1565c0;
  --c-blue2:     #1e88e5;
  --c-cyan:      #00b4d8;
  --c-text:      #e8edf5;
  --c-muted:     #8a9ab8;
  --c-white:     #ffffff;
  --radius:      0px;
  --transition:  0.25s cubic-bezier(.4,0,.2,1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 15px;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ---- 滚动条 ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--c-bg2); }
::-webkit-scrollbar-thumb { background: var(--c-border); }
::-webkit-scrollbar-thumb:hover { background: var(--c-gold); }

/* ============================================================
   导航栏
   ============================================================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
  border-bottom: 1px solid transparent;
}

#navbar.scrolled {
  background: rgba(9,14,26,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  box-shadow: 0 2px 24px rgba(0,0,0,0.5);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  padding: 0 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 16px;
  color: #fff;
  letter-spacing: 0;
  clip-path: polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px));
}

.nav-logo-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: 1px;
}

.nav-logo-text span {
  color: var(--c-gold);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 6px 14px;
  font-size: 14px;
  color: var(--c-muted);
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 14px; right: 14px;
  height: 2px;
  background: var(--c-gold);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--c-white);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-btn {
  padding: 7px 18px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  outline: none;
}

.nav-btn-outline {
  background: transparent;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
}

.nav-btn-outline:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
}

.nav-btn-solid {
  background: linear-gradient(135deg, var(--c-blue), var(--c-blue2));
  color: #fff;
  border: 1px solid transparent;
}

.nav-btn-solid:hover {
  background: linear-gradient(135deg, var(--c-blue2), var(--c-cyan));
  box-shadow: 0 0 16px rgba(0,180,216,0.3);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--c-gold);
  font-weight: 600;
}

.nav-user span { color: var(--c-muted); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--c-text);
  transition: all var(--transition);
}

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-bg);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 20% 50%, rgba(21,101,192,0.18) 0%, transparent 70%),
    radial-gradient(ellipse 50% 60% at 80% 30%, rgba(0,180,216,0.1) 0%, transparent 60%),
    linear-gradient(180deg, #090e1a 0%, #0d1526 100%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--c-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.15;
}

.hero-inner {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  padding: 120px 32px 80px;
  display: grid;
  grid-template-columns: 55% 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(200,168,75,0.4);
  background: rgba(200,168,75,0.08);
  padding: 5px 14px;
  font-size: 12px;
  color: var(--c-gold);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(32px, 5vw, 58px);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--c-white);
}

.hero-title .highlight {
  background: linear-gradient(90deg, var(--c-gold), var(--c-gold2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 16px;
  color: var(--c-muted);
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  padding: 13px 32px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-blue2));
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  display: inline-block;
  clip-path: polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--c-blue2), var(--c-cyan));
  box-shadow: 0 0 30px rgba(0,180,216,0.4);
  transform: translateY(-2px);
}

.btn-secondary {
  padding: 12px 32px;
  background: transparent;
  color: var(--c-gold);
  font-weight: 700;
  font-size: 15px;
  border: 1px solid rgba(200,168,75,0.5);
  cursor: pointer;
  transition: all var(--transition);
  display: inline-block;
}

.btn-secondary:hover {
  background: rgba(200,168,75,0.1);
  border-color: var(--c-gold);
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--c-border);
}

.hero-stat-num {
  font-size: 28px;
  font-weight: 900;
  color: var(--c-gold);
}

.hero-stat-label {
  font-size: 12px;
  color: var(--c-muted);
  margin-top: 2px;
}

/* 右侧装饰卡片 */
.hero-visual {
  position: relative;
  height: 420px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.hero-card-main {
  position: relative;
  width: 280px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  padding: 28px;
  margin-right: 20px;
}

.hero-card-main::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-blue), var(--c-cyan));
}

.hero-card-tag {
  font-size: 11px;
  color: var(--c-cyan);
  letter-spacing: 2px;
  margin-bottom: 10px;
}

.hero-card-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--c-white);
  margin-bottom: 6px;
}

.hero-card-sub {
  font-size: 13px;
  color: var(--c-muted);
}

.hero-card-bar {
  margin-top: 20px;
  height: 4px;
  background: var(--c-border);
  position: relative;
  overflow: hidden;
}

.hero-card-bar-fill {
  position: absolute;
  left: 0; top: 0; height: 100%;
  background: linear-gradient(90deg, var(--c-blue2), var(--c-cyan));
  animation: barFill 2s ease forwards;
}

@keyframes barFill {
  from { width: 0; }
  to   { width: 78%; }
}

.hero-card-float {
  position: absolute;
  right: 0;
  top: 50px;
  width: 160px;
  background: var(--c-surface);
  border: 1px solid var(--c-gold);
  padding: 16px 18px;
}

.hero-card-float-val {
  font-size: 22px;
  font-weight: 900;
  color: var(--c-gold);
}

.hero-card-float-label {
  font-size: 11px;
  color: var(--c-muted);
  margin-top: 4px;
}

/* ============================================================
   Section 通用
   ============================================================ */
.section {
  padding: 90px 0;
}

.section-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.section-header {
  margin-bottom: 56px;
}

.section-label {
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(24px, 3vw, 38px);
  font-weight: 900;
  color: var(--c-white);
  line-height: 1.25;
}

.section-title span {
  color: var(--c-gold);
}

.section-line {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--c-gold), var(--c-cyan));
  margin-top: 14px;
}

.section-desc {
  margin-top: 14px;
  color: var(--c-muted);
  max-width: 600px;
  font-size: 15px;
  line-height: 1.8;
}

/* ============================================================
   Feature Cards (首页特性)
   ============================================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--c-border);
}

.feature-card {
  background: var(--c-surface);
  padding: 36px 32px;
  transition: background var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-blue2), var(--c-cyan));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.feature-card:hover {
  background: var(--c-bg3);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(21,101,192,0.15);
  border: 1px solid rgba(21,101,192,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  font-size: 20px;
  color: var(--c-cyan);
}

.feature-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.7;
}

/* ============================================================
   不对称分割 Banner
   ============================================================ */
.split-banner {
  padding: 80px 0;
  background: var(--c-bg2);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  position: relative;
  overflow: hidden;
}

.split-banner::before {
  content: '';
  position: absolute;
  right: -10%;
  top: -20%;
  width: 45%;
  height: 140%;
  background: rgba(21,101,192,0.05);
  transform: skewX(-8deg);
}

.split-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 42% 1fr;
  gap: 80px;
  align-items: center;
}

.split-visual {
  position: relative;
}

.split-box {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  padding: 32px;
  position: relative;
}

.split-box::after {
  content: '';
  position: absolute;
  right: -16px; bottom: -16px;
  width: 100%; height: 100%;
  border: 1px solid var(--c-border);
  z-index: -1;
}

.split-content {
  padding-left: 20px;
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 32px;
}

.stat-item {
  padding: 20px 22px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-gold);
}

.stat-item-num {
  font-size: 26px;
  font-weight: 900;
  color: var(--c-gold);
}

.stat-item-label {
  font-size: 13px;
  color: var(--c-muted);
  margin-top: 4px;
}

/* ============================================================
   公告预览 (首页)
   ============================================================ */
.announcements-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--c-border);
}

.ann-item {
  background: var(--c-surface);
  padding: 22px 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  transition: background var(--transition);
  cursor: pointer;
}

.ann-item:hover { background: var(--c-bg3); }

.ann-item-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-white);
  margin-bottom: 5px;
}

.ann-item-excerpt {
  font-size: 13px;
  color: var(--c-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 580px;
}

.ann-item-date {
  font-size: 12px;
  color: var(--c-muted);
  white-space: nowrap;
}

/* ============================================================
   弹窗公告
   ============================================================ */
.ann-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.ann-modal-overlay.show {
  opacity: 1;
  pointer-events: all;
}

.ann-modal {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  width: 560px;
  max-width: 95vw;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  transform: scale(0.95) translateY(10px);
  transition: transform var(--transition);
  position: relative;
}

.ann-modal-overlay.show .ann-modal {
  transform: scale(1) translateY(0);
}

.ann-modal::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-blue), var(--c-cyan));
}

.ann-modal-head {
  padding: 22px 26px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--c-border);
}

.ann-modal-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-white);
}

.ann-modal-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  cursor: pointer;
  font-size: 14px;
  transition: all var(--transition);
}

.ann-modal-close:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
}

.ann-modal-body {
  padding: 24px 26px;
  overflow-y: auto;
  flex: 1;
  color: var(--c-text);
  font-size: 14px;
  line-height: 1.8;
}

.ann-modal-foot {
  padding: 16px 26px;
  border-top: 1px solid var(--c-border);
  display: flex;
  justify-content: flex-end;
}

.btn-confirm {
  padding: 9px 26px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-blue2));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-confirm:hover {
  background: linear-gradient(135deg, var(--c-blue2), var(--c-cyan));
  box-shadow: 0 0 16px rgba(0,180,216,0.3);
}

/* ============================================================
   截图画廊
   ============================================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  filter: brightness(0.8);
}

.gallery-item:hover img {
  transform: scale(1.06);
  filter: brightness(1);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(9,14,26,0.8) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 16px;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-label {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
}

/* ============================================================
   登录 / 注册页
   ============================================================ */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: stretch;
  background: var(--c-bg);
}

.auth-visual {
  flex: 1;
  background: linear-gradient(135deg, var(--c-bg2) 0%, var(--c-bg3) 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 60px;
  position: relative;
  overflow: hidden;
  min-height: 100vh;
}

.auth-visual::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--c-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-border) 1px, transparent 1px);
  background-size: 50px 50px;
  opacity: 0.2;
}

.auth-visual-content {
  position: relative;
  z-index: 1;
  max-width: 420px;
}

.auth-visual-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 48px;
}

.auth-visual-logo-icon {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: #fff;
  font-size: 18px;
  clip-path: polygon(0 0,calc(100% - 10px) 0,100% 10px,100% 100%,10px 100%,0 calc(100% - 10px));
}

.auth-visual-logo-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--c-white);
}

.auth-visual-logo-text span { color: var(--c-gold); }

.auth-visual h2 {
  font-size: 32px;
  font-weight: 900;
  color: var(--c-white);
  line-height: 1.3;
  margin-bottom: 16px;
}

.auth-visual p {
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.8;
}

.auth-visual-deco {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-visual-deco-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--c-muted);
}

.auth-visual-deco-dot {
  width: 8px;
  height: 8px;
  background: var(--c-cyan);
  flex-shrink: 0;
}

.auth-form-wrap {
  width: 480px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px 56px;
  background: var(--c-bg2);
  border-left: 1px solid var(--c-border);
}

.auth-form-head {
  margin-bottom: 36px;
}

.auth-form-head h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--c-white);
  margin-bottom: 8px;
}

.auth-form-head p {
  font-size: 14px;
  color: var(--c-muted);
}

.form-group {
  margin-bottom: 20px;
}

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

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  color: var(--c-text);
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition);
  font-family: inherit;
}

.form-input:focus {
  border-color: var(--c-blue2);
  box-shadow: 0 0 0 2px rgba(30,136,229,0.15);
}

.form-input::placeholder { color: var(--c-muted); opacity: 0.6; }

.form-submit {
  width: 100%;
  padding: 13px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-blue2));
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 8px;
  font-family: inherit;
}

.form-submit:hover {
  background: linear-gradient(135deg, var(--c-blue2), var(--c-cyan));
  box-shadow: 0 0 24px rgba(0,180,216,0.3);
}

.form-link {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--c-muted);
}

.form-link a {
  color: var(--c-cyan);
}

.form-link a:hover {
  text-decoration: underline;
}

.form-msg {
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}

.form-msg.error {
  display: block;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  color: #f87171;
}

.form-msg.success {
  display: block;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.3);
  color: #4ade80;
}

/* ============================================================
   内容页面（关于/公告/隐私/条款/GDPR）
   ============================================================ */
.page-hero {
  padding: 140px 0 60px;
  background: var(--c-bg2);
  border-bottom: 1px solid var(--c-border);
  position: relative;
  overflow: hidden;
}

.page-hero::after {
  content: '';
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 40%;
  background: linear-gradient(90deg, transparent, rgba(21,101,192,0.06));
  clip-path: polygon(15% 0,100% 0,100% 100%,0 100%);
}

.page-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.page-hero-tag {
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-bottom: 12px;
}

.page-hero-title {
  font-size: clamp(26px, 4vw, 44px);
  font-weight: 900;
  color: var(--c-white);
  margin-bottom: 10px;
}

.page-hero-sub {
  font-size: 15px;
  color: var(--c-muted);
}

.content-layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: 60px 32px 80px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}

.content-layout.full {
  grid-template-columns: 1fr;
}

.content-body {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  padding: 40px 44px;
}

.content-body h2 {
  font-size: 20px;
  font-weight: 800;
  color: var(--c-white);
  margin: 32px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-border);
}

.content-body h2:first-child { margin-top: 0; }

.content-body h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-gold);
  margin: 20px 0 8px;
}

.content-body p {
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 12px;
}

.content-body ul {
  list-style: disc;
  padding-left: 20px;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 12px;
}

.content-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 90px;
}

.sidebar-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  padding: 24px;
}

.sidebar-card h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-white);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-border);
}

.sidebar-card ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-card ul li a {
  font-size: 13px;
  color: var(--c-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color var(--transition);
}

.sidebar-card ul li a:hover { color: var(--c-cyan); }

/* ============================================================
   Footer
   ============================================================ */
footer {
  background: var(--c-bg2);
  border-top: 1px solid var(--c-border);
  padding: 60px 0 0;
  margin-top: auto;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--c-border);
}

.footer-brand-desc {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.8;
  margin-top: 14px;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 13px;
  color: var(--c-muted);
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: var(--c-cyan);
}

.footer-bottom {
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}

.footer-bottom-line {
  font-size: 13px;
  color: var(--c-muted);
  line-height: 1.8;
}

.footer-bottom-line a {
  color: var(--c-cyan);
  transition: color var(--transition);
}

.footer-bottom-line a:hover {
  color: var(--c-gold);
  text-decoration: underline;
}

.footer-divider {
  display: inline-block;
  margin: 0 10px;
  color: var(--c-border);
}

/* ============================================================
   后台管理
   ============================================================ */
.admin-layout {
  display: flex;
  min-height: 100vh;
  background: var(--c-bg);
}

.admin-sidebar {
  width: 240px;
  background: var(--c-bg2);
  border-right: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  left: 0; top: 0; bottom: 0;
}

.admin-sidebar-logo {
  padding: 24px 20px;
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.admin-sidebar-logo-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 900;
  color: #fff;
  clip-path: polygon(0 0,calc(100% - 8px) 0,100% 8px,100% 100%,8px 100%,0 calc(100% - 8px));
}

.admin-sidebar-logo-text {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-white);
}

.admin-sidebar-nav {
  flex: 1;
  padding: 16px 0;
  overflow-y: auto;
}

.admin-nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 20px;
  font-size: 14px;
  color: var(--c-muted);
  cursor: pointer;
  transition: all var(--transition);
  border-left: 3px solid transparent;
}

.admin-nav-item:hover,
.admin-nav-item.active {
  background: rgba(30,136,229,0.08);
  color: var(--c-white);
  border-left-color: var(--c-blue2);
}

.admin-nav-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.admin-sidebar-foot {
  padding: 16px 20px;
  border-top: 1px solid var(--c-border);
}

.admin-main {
  flex: 1;
  margin-left: 240px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.admin-topbar {
  height: 60px;
  background: var(--c-bg2);
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.admin-topbar-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-white);
}

.admin-topbar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--c-muted);
}

.admin-content {
  flex: 1;
  padding: 32px;
}

.admin-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.admin-section-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--c-white);
}

.admin-table-wrap {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  overflow: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th {
  padding: 14px 18px;
  text-align: left;
  font-size: 12px;
  font-weight: 700;
  color: var(--c-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  background: var(--c-bg2);
  border-bottom: 1px solid var(--c-border);
}

.admin-table td {
  padding: 14px 18px;
  font-size: 14px;
  color: var(--c-text);
  border-bottom: 1px solid var(--c-border);
}

.admin-table tr:last-child td { border-bottom: none; }

.admin-table tr:hover td { background: var(--c-bg3); }

.badge {
  display: inline-block;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.badge-active {
  background: rgba(34,197,94,0.12);
  color: #4ade80;
  border: 1px solid rgba(34,197,94,0.3);
}

.badge-inactive {
  background: rgba(239,68,68,0.1);
  color: #f87171;
  border: 1px solid rgba(239,68,68,0.2);
}

.badge-popup {
  background: rgba(200,168,75,0.1);
  color: var(--c-gold);
  border: 1px solid rgba(200,168,75,0.3);
}

/* 后台弹窗 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.show {
  opacity: 1;
  pointer-events: all;
}

.modal-box {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  width: 600px;
  max-width: 95vw;
  transform: scale(0.95) translateY(10px);
  transition: transform var(--transition);
  position: relative;
}

.modal-overlay.show .modal-box {
  transform: scale(1) translateY(0);
}

.modal-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-blue), var(--c-cyan));
}

.modal-head {
  padding: 20px 24px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--c-border);
}

.modal-head h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-white);
}

.modal-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  cursor: pointer;
  font-size: 14px;
  transition: all var(--transition);
}

.modal-close:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
}

.modal-body {
  padding: 24px;
}

.modal-foot {
  padding: 16px 24px;
  border-top: 1px solid var(--c-border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.btn-cancel {
  padding: 9px 22px;
  background: transparent;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}

.btn-cancel:hover {
  border-color: var(--c-muted);
  color: var(--c-text);
}

.btn-danger {
  padding: 9px 22px;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.3);
  color: #f87171;
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition);
  font-family: inherit;
}

.btn-danger:hover {
  background: rgba(239,68,68,0.2);
}

.form-checkbox-group {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
}

.form-checkbox-group input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--c-blue2);
  cursor: pointer;
}

.form-checkbox-group label {
  font-size: 14px;
  color: var(--c-muted);
  cursor: pointer;
}

textarea.form-input {
  resize: vertical;
  min-height: 120px;
}

/* 管理员登录 */
.admin-login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-bg);
  position: relative;
}

.admin-login-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--c-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.1;
}

.admin-login-box {
  position: relative;
  z-index: 1;
  width: 420px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
}

.admin-login-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-blue), var(--c-cyan));
}

.admin-login-head {
  padding: 32px 32px 24px;
  border-bottom: 1px solid var(--c-border);
  text-align: center;
}

.admin-login-head h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--c-white);
  margin-top: 16px;
  margin-bottom: 6px;
}

.admin-login-head p {
  font-size: 13px;
  color: var(--c-muted);
}

.admin-login-form {
  padding: 28px 32px 32px;
}

/* 响应式 */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .split-inner { grid-template-columns: 1fr; }
  .split-visual { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .content-layout { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .auth-visual { display: none; }
  .auth-form-wrap { width: 100%; }
  .admin-sidebar { width: 200px; }
  .admin-main { margin-left: 200px; }
  .hamburger { display: flex; }
  .nav-links, .nav-actions { display: none; }
}

@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
  .admin-main { margin-left: 0; }
  .hero-stats { flex-direction: column; gap: 20px; }
}

/* ============================================================
   工具类
   ============================================================ */
.text-gold { color: var(--c-gold); }
.text-cyan { color: var(--c-cyan); }
.text-muted { color: var(--c-muted); }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-0 { margin-bottom: 0; }
.flex { display: flex; align-items: center; }
.gap-8 { gap: 8px; }
.fw-700 { font-weight: 700; }
.fs-13 { font-size: 13px; }

/* ============================================================
   音乐播放器（右下角悬浮）
   ============================================================ */
#musicPlayer {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 1500;
  width: 300px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
  transition: all var(--transition);
}

#musicPlayer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-blue2), var(--c-cyan));
}

#musicPlayer.collapsed {
  width: 52px;
  height: 52px;
  overflow: hidden;
}

.mp-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--c-border);
  cursor: pointer;
  user-select: none;
}

.mp-bar-left {
  display: flex;
  align-items: center;
  gap: 9px;
}

.mp-disc {
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
}

.mp-disc svg {
  width: 14px;
  height: 14px;
  color: #fff;
  animation: mpSpin 4s linear infinite;
  animation-play-state: paused;
}

.mp-disc.playing svg {
  animation-play-state: running;
}

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

.mp-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--c-white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 160px;
}

.mp-collapse-btn {
  width: 22px;
  height: 22px;
  background: transparent;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  transition: all var(--transition);
  flex-shrink: 0;
}

.mp-collapse-btn:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
}

.mp-body {
  padding: 14px 16px 16px;
}

.mp-progress-wrap {
  position: relative;
  height: 4px;
  background: var(--c-border);
  margin-bottom: 12px;
  cursor: pointer;
}

.mp-progress-fill {
  position: absolute;
  left: 0; top: 0; height: 100%;
  background: linear-gradient(90deg, var(--c-blue2), var(--c-cyan));
  transition: width 0.5s linear;
  pointer-events: none;
}

.mp-progress-thumb {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background: var(--c-cyan);
  cursor: pointer;
  pointer-events: none;
  transition: left 0.5s linear;
}

.mp-time {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--c-muted);
  margin-bottom: 12px;
}

.mp-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.mp-ctrl-btn {
  width: 34px;
  height: 34px;
  background: transparent;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  font-family: inherit;
}

.mp-ctrl-btn:hover {
  border-color: var(--c-blue2);
  color: var(--c-white);
}

.mp-ctrl-btn.play-btn {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--c-blue), var(--c-blue2));
  border-color: transparent;
  color: #fff;
}

.mp-ctrl-btn.play-btn:hover {
  background: linear-gradient(135deg, var(--c-blue2), var(--c-cyan));
  box-shadow: 0 0 14px rgba(0,180,216,0.35);
}

.mp-volume-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.mp-vol-icon {
  color: var(--c-muted);
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.mp-volume-wrap {
  flex: 1;
  position: relative;
  height: 4px;
  background: var(--c-border);
  cursor: pointer;
}

.mp-volume-fill {
  position: absolute;
  left: 0; top: 0; height: 100%;
  background: linear-gradient(90deg, var(--c-gold), var(--c-gold2));
  pointer-events: none;
}

/* loading */
.loading-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--c-cyan);
  animation: blink 1s infinite;
}

@keyframes blink {
  0%,100% { opacity: 1; }
  50% { opacity: 0.2; }
}