/* ============================================================
   邮轮游页 - 样式
   设计风格：深空蓝 + 科技蓝 + 鎏金
   ============================================================ */

:root {
    --deep-blue: #071D49;
    --tech-blue: #0D6EFD;
    --tech-blue-light: #3B8BFF;
    --gold: #D4AF37;
    --white: #FFFFFF;
    --bg-dark: #020C24;
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255,255,255,0.7);
    --text-muted: rgba(255,255,255,0.45);
    --border-subtle: rgba(255,255,255,0.06);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: 0.3s ease;
}

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

body {
    font-family: "PingFang SC","Microsoft YaHei","HarmonyOS Sans",-apple-system,sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 3px; }

/* ============================================================
   导航栏
   ============================================================ */
.header {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    background: rgba(2,12,36,0.85); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle); padding: 0 24px;
}
.nav-container {
    max-width: 1440px; margin: 0 auto; display: flex;
    align-items: center; justify-content: space-between; height: 64px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: var(--white); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links > a, .nav-links .nav-dropdown > a {
    font-size: 14px; color: var(--text-secondary); padding: 8px 0;
    transition: color var(--transition); white-space: nowrap;
}
.nav-links a:hover { color: var(--white); }
.nav-links a.active, .nav-links .nav-dropdown > a.active { color: var(--tech-blue-light); font-weight: 600; }
.nav-dropdown { position: relative; }
.nav-dropdown .arrow { font-size: 10px; margin-left: 4px; }
.dropdown-menu {
    position: absolute; top: 100%; left: 0; min-width: 130px;
    background: rgba(6,14,43,0.95); border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-sm); padding: 8px 0; opacity: 0; visibility: hidden;
    transform: translateY(8px); transition: all var(--transition); backdrop-filter: blur(20px);
}
.nav-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-menu a { display: block; padding: 8px 20px; font-size: 13px; color: var(--text-secondary); transition: all var(--transition); }
.dropdown-menu a:hover { background: rgba(13,110,253,0.1); color: var(--tech-blue-light); }
.dropdown-menu a.active { color: var(--tech-blue-light); font-weight: 600; }
.nav-actions { display: flex; align-items: center; gap: 16px; font-size: 13px; }
.nav-actions a { color: var(--text-secondary); transition: color var(--transition); }
.nav-actions a:hover { color: var(--white); }
.btn-register { padding: 8px 20px; background: linear-gradient(135deg, var(--tech-blue), #2563EB); color: var(--white)!important; border-radius: 20px; font-weight: 600; }

/* ============================================================
   Banner大图
   ============================================================ */
.hero-banner {
    position: relative; width: 100%; height: 520px; overflow: hidden; margin-top: 64px;
}
.hero-img {
    position: absolute; inset: 0; background-size: cover; background-position: center;
    transform: scale(1.05); transition: transform 8s ease;
}
.hero-banner:hover .hero-img { transform: scale(1.0); }
.hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to bottom, rgba(2,12,36,0.25) 0%, rgba(2,12,36,0.75) 100%);
}
.hero-content {
    position: absolute; inset: 0; display: flex; flex-direction: column;
    align-items: center; justify-content: center; text-align: center; padding: 0 24px;
}
.hero-tag {
    font-size: 12px; font-weight: 700; color: var(--gold);
    letter-spacing: 4px; text-transform: uppercase; margin-bottom: 16px;
    border: 1px solid rgba(212,175,55,0.3); padding: 6px 18px; border-radius: 20px;
}
.hero-title { font-size: 52px; font-weight: 700; color: var(--white); margin-bottom: 12px; letter-spacing: 2px; }
.hero-subtitle { font-size: 20px; color: var(--text-secondary); margin-bottom: 10px; }
.hero-desc { font-size: 15px; color: var(--text-muted); max-width: 500px; }

/* ============================================================
   搜索栏区域
   ============================================================ */
.search-section { padding: 32px 0 8px; }
.search-inner {
    max-width: 900px; margin: 0 auto; padding: 0 24px;
    display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
}
.search-box {
    flex: 1; min-width: 260px; position: relative; display: flex;
    background: rgba(255,255,255,0.04); border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md); overflow: hidden; transition: all var(--transition);
}
.search-box:focus-within { border-color: rgba(13,110,253,0.3); background: rgba(13,110,253,0.04); }
.search-box input {
    flex: 1; padding: 14px 18px; font-size: 15px; color: var(--white);
    background: none; border: none; outline: none;
}
.search-box input::placeholder { color: var(--text-muted); }
.btn-search {
    padding: 0 18px; background: none; border: none; cursor: pointer;
    color: var(--text-secondary); transition: color var(--transition);
    display: flex; align-items: center; justify-content: center;
}
.btn-search:hover { color: var(--tech-blue-light); }
.btn-my-trip {
    padding: 14px 24px; font-size: 14px; font-weight: 600; color: var(--white);
    background: linear-gradient(135deg, var(--tech-blue), #2563EB);
    border-radius: var(--radius-md); transition: all var(--transition); white-space: nowrap;
}
.btn-my-trip:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(13,110,253,0.35); }

.search-tags { width: 100%; display: flex; gap: 10px; margin-top: 4px; }
.search-tag {
    padding: 6px 16px; font-size: 13px; color: var(--text-muted);
    background: rgba(255,255,255,0.03); border: 1px solid var(--border-subtle);
    border-radius: 20px; cursor: pointer; transition: all var(--transition);
}
.search-tag.active { color: var(--tech-blue-light); background: rgba(13,110,253,0.08); border-color: rgba(13,110,253,0.25); font-weight: 600; }
.search-tag:hover:not(.active) { color: var(--text-secondary); background: rgba(255,255,255,0.05); }

/* ============================================================
   五分类标签栏
   ============================================================ */
.tab-section { padding: 20px 0 16px; }
.tab-inner { max-width: 1300px; margin: 0 auto; padding: 0 24px; }
.tab-bar {
    display: flex; gap: 10px; flex-wrap: wrap;
    padding: 8px; background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-subtle); border-radius: var(--radius-md);
}
.tab-btn {
    flex: 1; min-width: 100px; padding: 12px 20px; font-size: 14px; font-weight: 600;
    color: var(--text-secondary); background: transparent; border: none; border-radius: var(--radius-sm);
    cursor: pointer; transition: all var(--transition); white-space: nowrap;
}
.tab-btn:hover { color: var(--white); background: rgba(255,255,255,0.04); }
.tab-btn.active {
    color: var(--white); background: linear-gradient(135deg, var(--tech-blue), #2563EB);
    box-shadow: 0 4px 14px rgba(13,110,253,0.3);
}

/* ============================================================
   线路卡片列表
   ============================================================ */
.list-section { padding: 8px 0 60px; }
.list-inner { max-width: 1300px; margin: 0 auto; padding: 0 24px; }

.card-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(380px, 1fr)); gap: 20px;
}

.route-card {
    display: flex; align-items: stretch; background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-subtle); border-radius: var(--radius-md);
    overflow: hidden; transition: all var(--transition);
}
.route-card:hover {
    border-color: rgba(13,110,253,0.2);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

/* 左侧竖排标签 */
.card-tag {
    writing-mode: vertical-rl; text-orientation: mixed;
    padding: 18px 10px; font-size: 13px; font-weight: 700; color: var(--white);
    background: linear-gradient(180deg, var(--tech-blue), #2563EB);
    letter-spacing: 2px; display: flex; align-items: center; justify-content: center;
    min-width: 36px;
}

/* 图片 */
.card-img {
    width: 160px; min-height: 180px; flex-shrink: 0;
    background-size: cover; background-position: center;
    position: relative;
}

/* 中间内容 */
.card-body {
    flex: 1; padding: 18px 20px; display: flex; flex-direction: column; justify-content: center;
    min-width: 0;
}
.card-title {
    font-size: 17px; font-weight: 700; color: var(--white); margin-bottom: 8px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.card-route {
    font-size: 13px; color: var(--text-muted); line-height: 1.6;
    margin-bottom: 12px; overflow: hidden; text-overflow: ellipsis;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}
.card-meta {
    display: flex; gap: 16px; align-items: center;
}
.card-meta span {
    font-size: 12px; color: var(--text-secondary); display: flex; align-items: center; gap: 4px;
}
.card-meta .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--text-muted); }

/* 右侧按钮 */
.card-action {
    padding: 0 20px; display: flex; align-items: center; flex-shrink: 0;
}
.card-action .btn-view {
    padding: 10px 22px; font-size: 13px; font-weight: 700; color: var(--white);
    background: linear-gradient(135deg, var(--tech-blue), #2563EB);
    border: none; border-radius: 24px; cursor: pointer;
    transition: all var(--transition); white-space: nowrap;
}
.card-action .btn-view:hover {
    transform: translateY(-2px); box-shadow: 0 6px 20px rgba(13,110,253,0.4);
}

/* ============================================================
   页脚
   ============================================================ */
.footer { background: rgba(0,0,0,0.3); border-top: 1px solid var(--border-subtle); padding: 40px 0 0; }
.footer-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.footer-top { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; margin-bottom: 30px; }
.footer-brand p { font-size: 13px; color: var(--text-muted); margin-top: 6px; }
.footer-tel { font-size: 18px; font-weight: 700; color: var(--gold); margin-top: 8px; }
.footer-links { display: flex; gap: 60px; flex-wrap: wrap; }
.footer-col h4 { font-size: 14px; font-weight: 700; color: var(--white); margin-bottom: 14px; }
.footer-col a { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 10px; transition: color var(--transition); }
.footer-col a:hover { color: var(--tech-blue-light); }
.footer-bottom { border-top: 1px solid var(--border-subtle); padding: 18px 0; text-align: center; }
.footer-bottom p { font-size: 12px; color: var(--text-muted); }
.footer-copy { margin-top: 4px; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
    .card-grid { grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }
    .hero-title { font-size: 40px; }
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero-banner { height: 400px; }
    .hero-title { font-size: 32px; }
    .search-inner { flex-direction: column; align-items: stretch; }
    .btn-my-trip { text-align: center; }
    .tab-btn { min-width: calc(50% - 5px); }
    .card-grid { grid-template-columns: 1fr; }
    .route-card { flex-direction: column; }
    .card-tag { writing-mode: horizontal-tb; padding: 8px 16px; min-width: auto; justify-content: flex-start; }
    .card-img { width: 100%; height: 180px; }
    .card-action { padding: 0 20px 20px; }
    .card-action .btn-view { width: 100%; }
}