/* ==========================================
   KUNXIN CLUB — 坤鑫健身游泳房 官方网站
   主样式表 | Main Stylesheet
   ========================================== */

/* ===============================
   1. CSS Variables & Design Tokens
   =============================== */
:root {
    /* 主色调 */
    --bg: #080b11;
    --bg-surface: #0d1119;
    --card: #111827;
    --card-hover: #182233;
    --card-border: rgba(255, 255, 255, 0.06);

    /* 金色系 */
    --gold: #d4af37;
    --gold-light: #f5df8a;
    --gold-dark: #b8941f;
    --gold-glow: rgba(212, 175, 55, 0.25);
    --gold-subtle: rgba(212, 175, 55, 0.08);

    /* 辅助色 */
    --blue-deep: #0b2345;
    --blue-card: #172235;

    /* 文字色 */
    --white: #ffffff;
    --text-primary: #e8eaed;
    --text-secondary: #b8c0cc;
    --text-muted: #9ca3af;
    --text-dim: #6b7280;

    /* 玻璃效果 */
    --glass-bg: rgba(7, 11, 18, 0.75);
    --glass-border: rgba(212, 175, 55, 0.15);
    --glass-blur: blur(20px);

    /* 间距 */
    --container-padding: 20px;
    --section-gap: 70px;
    --card-radius: 18px;
    --card-radius-sm: 12px;

    /* 动画 */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);

    /* 阴影 */
    --shadow-gold: 0 0 40px rgba(212, 175, 55, 0.12);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
}

/* ===============================
   2. Reset & Base
   =============================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: var(--bg);
    color: var(--text-primary);
    font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    font-weight: 400;
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
}

::selection {
    background: var(--gold);
    color: var(--bg);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
    font-size: inherit;
}

/* ===============================
   3. Typography
   =============================== */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.3;
}

.gold-text {
    color: var(--gold);
    font-weight: inherit;
}

/* ===============================
   4. Layout Utilities
   =============================== */
.container {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-gap) 0;
}

.section-title {
    text-align: center;
    margin-bottom: 42px;
}

.section-title small {
    display: block;
    color: var(--gold);
    letter-spacing: 4px;
    font-size: 11px;
    font-weight: 500;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.section-title h2 {
    font-size: 28px;
    margin-bottom: 10px;
    color: var(--white);
}

.title-desc {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 8px;
}

/* ===============================
   5. Navigation
   =============================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(7, 11, 18, 0.8);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--transition-smooth);
}

.navbar.scrolled {
    background: rgba(7, 11, 18, 0.95);
    border-bottom-color: rgba(212, 175, 55, 0.3);
}

.nav-inner {
    height: 60px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--white);
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 2px;
}

.logo-gold {
    color: var(--gold);
}

.nav-links {
    display: none;
}

.nav-call {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid var(--gold);
    color: var(--gold-light);
    transition: all var(--transition-smooth);
    white-space: nowrap;
}

.nav-call:hover {
    background: rgba(212, 175, 55, 0.12);
    border-color: var(--gold-light);
    box-shadow: 0 0 20px var(--gold-glow);
}

/* ===============================
   6. Hero Section
   =============================== */
.hero {
    height: 100vh;
    min-height: 700px;
    max-height: 900px;
    position: relative;
    display: flex;
    align-items: flex-end;
    padding-bottom: 50px;
    overflow: hidden;
}

/* 背景图 */
.hero-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(180deg, rgba(5, 10, 20, 0.35) 0%, rgba(5, 10, 20, 0.6) 50%, rgba(7, 11, 18, 0.95) 100%),
        url("images/hero-bg.jpg");
    background-size: cover;
    background-position: center;
    will-change: transform;
    animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
    from { transform: scale(1); }
    to { transform: scale(1.08); }
}

/* 光影叠加 */
.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 60% 40%, rgba(212, 175, 55, 0.06) 0%, transparent 55%),
        radial-gradient(ellipse at 30% 70%, rgba(11, 35, 69, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-light-effect {
    position: absolute;
    top: 15%;
    right: 10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.04) 0%, transparent 70%);
    pointer-events: none;
    animation: lightFloat 8s ease-in-out infinite;
}

@keyframes lightFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-30px, 20px); }
}

/* Hero 内容 */
.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid rgba(212, 175, 55, 0.4);
    background: rgba(212, 175, 55, 0.08);
    font-size: 12px;
    color: var(--gold-light);
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--gold);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: 40px;
    line-height: 1.2;
    margin-bottom: 14px;
    font-weight: 700;
    letter-spacing: 1px;
}

.hero-desc {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.8;
}

.hero-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 22px;
}

.hero-tags span {
    padding: 5px 14px;
    font-size: 12px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.hero-tags span:hover {
    background: rgba(212, 175, 55, 0.1);
    border-color: rgba(212, 175, 55, 0.3);
    color: var(--gold-light);
}

.hero-address {
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(10px);
    border-left: 3px solid var(--gold);
    padding: 14px 16px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 24px;
}

.address-main {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    color: var(--text-primary);
    font-size: 13px;
    line-height: 1.5;
}

.address-sub {
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 6px;
    margin-left: 24px;
}

/* Hero 按钮 */
.hero-buttons {
    display: flex;
    gap: 12px;
}

.btn-primary {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    color: #111;
    padding: 14px 20px;
    border-radius: var(--card-radius-sm);
    text-align: center;
    font-weight: 700;
    font-size: 15px;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-primary::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 30%, rgba(255, 255, 255, 0.2) 70%);
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.3);
}

.btn-primary:hover::after {
    opacity: 1;
}

.btn-primary:active {
    transform: translateY(0);
    transition: transform 0.1s;
}

.btn-outline {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    border-radius: var(--card-radius-sm);
    text-align: center;
    font-weight: 500;
    font-size: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.06);
    color: var(--white);
    transition: all var(--transition-smooth);
    backdrop-filter: blur(10px);
    white-space: nowrap;
}

.btn-outline:hover {
    border-color: var(--gold);
    background: rgba(212, 175, 55, 0.08);
    box-shadow: 0 0 30px var(--gold-glow);
}

/* 滚动指示器 */
.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    margin-top: 30px;
    color: var(--text-muted);
    font-size: 11px;
    letter-spacing: 2px;
    animation: bounceDown 2s ease-in-out infinite;
}

@keyframes bounceDown {
    0%, 100% { transform: translateY(0); opacity: 0.6; }
    50% { transform: translateY(8px); opacity: 1; }
}

/* Fade-up 入场动画 */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUpIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: var(--delay, 0s);
}

@keyframes fadeUpIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===============================
   7. Brand Section
   =============================== */
.brand-card {
    background: linear-gradient(145deg, var(--blue-card), var(--bg));
    border-radius: 24px;
    padding: 32px 24px;
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.brand-card::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.04) 0%, transparent 70%);
    pointer-events: none;
}

.brand-header {
    margin-bottom: 20px;
}

.title-sm {
    color: var(--gold);
    letter-spacing: 4px;
    font-size: 11px;
    font-weight: 500;
    margin-bottom: 8px;
}

.brand-title {
    font-size: 26px;
}

.brand-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.85;
    margin-bottom: 30px;
}

.brand-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    gap: 8px;
}

.stat-item {
    text-align: center;
    position: relative;
}

.stat-icon {
    margin-bottom: 10px;
    display: flex;
    justify-content: center;
}

.stat-num {
    font-size: 26px;
    font-weight: 700;
    color: var(--gold);
    font-family: "Cormorant Garamond", "Georgia", serif;
    line-height: 1;
}

.stat-unit {
    font-size: 13px;
    color: var(--gold-light);
    margin-top: 2px;
    font-weight: 500;
}

.stat-label {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 6px;
    letter-spacing: 1px;
}

/* ===============================
   8. Why KUNXIN Section
   =============================== */
.why-grid {
    display: grid;
    gap: 14px;
}

.why-card {
    background: var(--card);
    padding: 22px 20px;
    border-radius: 16px;
    border: 1px solid var(--card-border);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.why-card::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 16px;
    opacity: 0;
    transition: opacity var(--transition-smooth);
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.03), transparent 60%);
    pointer-events: none;
}

.why-card:hover {
    border-color: var(--glass-border);
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold);
    background: var(--card-hover);
}

.why-card:hover::after {
    opacity: 1;
}

.why-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.why-card h3 {
    font-size: 17px;
    margin-bottom: 8px;
    color: var(--white);
}

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

/* ===============================
   9. Spaces Section
   =============================== */
.spaces-grid {
    display: grid;
    gap: 16px;
}

.space-card {
    height: 260px;
    border-radius: 18px;
    overflow: hidden;
    position: relative;
    background: var(--card);
    cursor: pointer;
    transition: all var(--transition-smooth);
}

.space-card:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.space-card:hover .space-img-real {
    transform: scale(1.06);
}

.space-img {
    width: 100%;
    height: 100%;
    position: relative;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.space-img-pattern {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(255, 255, 255, 0.03) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 80%, rgba(212, 175, 55, 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.space-mask {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 24px 20px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.88));
    pointer-events: none;
}

.space-mask h3 {
    font-size: 20px;
    margin-bottom: 6px;
    color: var(--white);
}

.space-mask p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 实际图片替换 */
.space-img-real {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    inset: 0;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.space-card:hover .space-img-real {
    transform: scale(1.06);
}

/* ===============================
   10. Course Tabs Section
   =============================== */
.tab-nav {
    display: flex;
    gap: 10px;
    margin-bottom: 28px;
    justify-content: center;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all var(--transition-smooth);
}

.tab-btn:hover {
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.2);
}

.tab-btn.active {
    color: var(--bg);
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    border-color: var(--gold);
    font-weight: 700;
    box-shadow: 0 4px 20px var(--gold-glow);
}

.tab-icon {
    font-size: 18px;
}

/* Tab Panels */
.tab-panel {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Course Cards */
.course-cards {
    display: grid;
    gap: 16px;
}

.course-card {
    background: linear-gradient(145deg, var(--blue-card), var(--bg));
    padding: 26px 22px;
    border-radius: 18px;
    border: 1px solid var(--glass-border);
    position: relative;
    transition: all var(--transition-smooth);
}

.course-card:hover {
    border-color: rgba(212, 175, 55, 0.25);
    box-shadow: var(--shadow-gold);
}

.course-badge {
    position: absolute;
    right: 18px;
    top: 18px;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    color: #111;
    padding: 4px 12px;
    font-size: 11px;
    border-radius: 20px;
    font-weight: 700;
}

.course-card h3 {
    font-size: 19px;
    margin-bottom: 12px;
    padding-right: 60px;
}

.course-card > p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 18px;
    line-height: 1.7;
}

.course-features {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-bottom: 20px;
}

.course-features li {
    font-size: 13px;
    color: var(--text-muted);
    padding: 6px 0 6px 20px;
    position: relative;
}

.course-features li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--gold);
}

.course-btn {
    width: 100%;
    font-size: 14px;
}

/* ===============================
   11. Summer Training Section（暑期游泳培训专区）
   =============================== */
.summer-section {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, var(--bg) 0%, #0a1628 40%, #0b2345 70%, var(--bg) 100%);
}

/* 泳池波浪 SVG */
.wave-top {
    width: 100%;
    height: 100px;
    margin-bottom: -2px;
    color: #0a1628;
    overflow: hidden;
}

.wave-top svg {
    width: 100%;
    height: 100%;
    display: block;
}

.wave-path {
    fill: #0b2345;
    opacity: 0.6;
    animation: waveMove 6s ease-in-out infinite alternate;
}

.wave-path-1 {
    fill: rgba(11, 35, 69, 0.85);
    animation-duration: 6s;
}

.wave-path-2 {
    fill: rgba(13, 45, 88, 0.5);
    animation-duration: 4.5s;
    animation-delay: -1s;
}

.wave-path-3 {
    fill: rgba(8, 30, 55, 0.4);
    animation-duration: 7s;
    animation-delay: -2s;
}

@keyframes waveMove {
    0% { transform: translateX(0) scaleY(1); }
    50% { transform: translateX(-2%) scaleY(1.08); }
    100% { transform: translateX(2%) scaleY(0.92); }
}

/* 暑期课程卡片 */
.summer-cards {
    display: grid;
    gap: 20px;
    margin-bottom: 24px;
}

.summer-card {
    background: linear-gradient(160deg, rgba(20, 35, 60, 0.9), rgba(8, 15, 28, 0.95));
    border: 1px solid rgba(212, 175, 55, 0.15);
    border-radius: 20px;
    padding: 28px 22px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-smooth);
}

.summer-card:hover {
    transform: translateY(-4px);
    border-color: rgba(212, 175, 55, 0.35);
    box-shadow: 0 12px 40px rgba(212, 175, 55, 0.1);
}

.summer-card-shine {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.5), transparent);
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.summer-card:hover .summer-card-shine {
    opacity: 1;
}

.summer-card-badge {
    position: absolute;
    right: 16px;
    top: 16px;
    background: linear-gradient(135deg, #d4af37, #f5df8a);
    color: #111;
    padding: 5px 14px;
    font-size: 11px;
    border-radius: 20px;
    font-weight: 700;
    letter-spacing: 1px;
    box-shadow: 0 2px 12px rgba(212, 175, 55, 0.3);
}

.summer-card-icon {
    font-size: 42px;
    margin-bottom: 12px;
    display: block;
}

.summer-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 6px;
}

.summer-card-meta {
    margin-bottom: 16px;
}

.summer-age {
    display: inline-block;
    font-size: 13px;
    color: var(--text-muted);
    padding: 4px 14px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.summer-price {
    margin-bottom: 12px;
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.summer-price-symbol {
    font-size: 18px;
    color: var(--gold);
    font-weight: 700;
    align-self: flex-start;
    margin-top: 4px;
}

.summer-price-num {
    font-size: 46px;
    font-weight: 900;
    color: var(--gold-light);
    line-height: 1;
    font-family: "Cormorant Garamond", "Georgia", serif;
    letter-spacing: 1px;
    /* 金色渐变文字 */
    background: linear-gradient(180deg, #f5df8a 0%, #d4af37 50%, #b8941f 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.summer-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 18px;
}

.summer-btn {
    width: 100%;
}

/* 活动横幅 */
.summer-promos {
    display: grid;
    gap: 10px;
}

.promo-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    border-radius: 14px;
    font-size: 14px;
    color: var(--text-primary);
    transition: all var(--transition-smooth);
}

.promo-gift {
    background: rgba(212, 175, 55, 0.08);
    border: 1px dashed rgba(212, 175, 55, 0.3);
}

.promo-share {
    background: rgba(7, 193, 96, 0.06);
    border: 1px dashed rgba(7, 193, 96, 0.2);
}

.promo-icon {
    font-size: 22px;
    flex-shrink: 0;
}

.promo-text strong {
    color: var(--gold-light);
    font-weight: 700;
}

/* ===============================
   12. Splash Section（夏日畅游活动）
   =============================== */
.splash-section {
    background: linear-gradient(180deg, var(--bg), #0a1628 50%, var(--bg));
}

.splash-card {
    background: linear-gradient(160deg, #0d1f3c 0%, #0a1628 40%, #071220 100%);
    border: 2px solid rgba(212, 175, 55, 0.25);
    border-radius: 24px;
    padding: 40px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 60px rgba(212, 175, 55, 0.08);
}

.splash-ribbon {
    position: absolute;
    right: 20px;
    top: 20px;
    background: linear-gradient(135deg, #d4af37, #b8941f);
    color: #111;
    padding: 6px 16px;
    font-size: 12px;
    border-radius: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
    animation: ribbonPulse 3s ease-in-out infinite;
}

@keyframes ribbonPulse {
    0%, 100% { box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3); }
    50% { box-shadow: 0 4px 35px rgba(212, 175, 55, 0.5); }
}

/* 背景光效 */
.splash-glow {
    position: absolute;
    top: -30%;
    left: 50%;
    transform: translateX(-50%);
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.07) 0%, transparent 70%);
    pointer-events: none;
    animation: glowPulse 4s ease-in-out infinite;
}

.splash-glow-secondary {
    position: absolute;
    bottom: -20%;
    right: -20%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(11, 35, 69, 0.3) 0%, transparent 70%);
    pointer-events: none;
}

@keyframes glowPulse {
    0%, 100% { transform: translateX(-50%) scale(1); opacity: 0.8; }
    50% { transform: translateX(-50%) scale(1.2); opacity: 1; }
}

.splash-content {
    position: relative;
    z-index: 1;
}

.splash-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid rgba(212, 175, 55, 0.4);
    background: rgba(212, 175, 55, 0.08);
    font-size: 13px;
    color: var(--gold-light);
    margin-bottom: 20px;
}

.splash-price-block {
    margin-bottom: 16px;
}

.splash-price-symbol {
    font-size: 28px;
    color: var(--gold);
    font-weight: 700;
    vertical-align: super;
}

.splash-price-num {
    font-size: 72px;
    font-weight: 900;
    color: var(--gold-light);
    line-height: 1;
    font-family: "Cormorant Garamond", "Georgia", serif;
    background: linear-gradient(180deg, #f5df8a 0%, #d4af37 40%, #b8941f 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 4px 20px rgba(212, 175, 55, 0.3));
}

.splash-highlight {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
}

.highlight-line {
    display: block;
    width: 40px;
    height: 1px;
    background: var(--gold);
    opacity: 0.5;
}

.splash-features {
    margin-bottom: 28px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    text-align: left;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
}

.splash-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.splash-check {
    flex-shrink: 0;
    margin-top: 2px;
}

.splash-buttons {
    display: flex;
    gap: 12px;
}

.splash-buttons .btn-primary,
.splash-buttons .btn-outline {
    flex: 1;
    font-size: 15px;
}

/* ===== 主推爆款增强样式 ===== */

/* 爆款标签 */
.splash-hot-tag {
    position: absolute;
    left: 20px;
    top: 20px;
    background: linear-gradient(135deg, #dc2626, #ef4444);
    color: #fff;
    padding: 5px 14px;
    font-size: 12px;
    border-radius: 20px;
    font-weight: 800;
    letter-spacing: 2px;
    box-shadow: 0 4px 20px rgba(220, 38, 38, 0.4);
    animation: hotTagPulse 1.5s ease-in-out infinite;
    z-index: 2;
}

@keyframes hotTagPulse {
    0%, 100% { transform: scale(1); box-shadow: 0 4px 20px rgba(220, 38, 38, 0.4); }
    50% { transform: scale(1.08); box-shadow: 0 4px 35px rgba(220, 38, 38, 0.65); }
}

/* 第三层光效 */
.splash-glow-tertiary {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 350px;
    height: 350px;
    background: radial-gradient(ellipse, rgba(212, 175, 55, 0.04) 0%, rgba(212, 175, 55, 0.01) 50%, transparent 70%);
    pointer-events: none;
    animation: glowPulseTertiary 6s ease-in-out infinite;
}

@keyframes glowPulseTertiary {
    0%, 100% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.3); opacity: 1; }
}

/* 闪光粒子 */
.splash-sparkle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: #f5df8a;
    border-radius: 50%;
    pointer-events: none;
    box-shadow: 0 0 6px 2px rgba(245, 223, 138, 0.6);
}

.splash-sparkle-1 {
    top: 15%;
    left: 10%;
    animation: sparkleFloat 3s ease-in-out infinite;
}

.splash-sparkle-2 {
    top: 70%;
    right: 12%;
    width: 3px;
    height: 3px;
    animation: sparkleFloat 3.5s ease-in-out 0.8s infinite;
}

.splash-sparkle-3 {
    top: 40%;
    left: 85%;
    width: 5px;
    height: 5px;
    animation: sparkleFloat 4s ease-in-out 1.6s infinite;
}

@keyframes sparkleFloat {
    0%, 100% { opacity: 0.2; transform: translateY(0) scale(0.8); }
    50% { opacity: 1; transform: translateY(-12px) scale(1.4); }
}

/* 流动金光边框 */
.splash-shimmer-border {
    position: absolute;
    inset: 0;
    border-radius: 24px;
    pointer-events: none;
    z-index: 0;
    background: linear-gradient(
        135deg,
        transparent 30%,
        rgba(212, 175, 55, 0.15) 45%,
        rgba(245, 223, 138, 0.35) 50%,
        rgba(212, 175, 55, 0.15) 55%,
        transparent 70%
    );
    background-size: 300% 300%;
    animation: shimmerMove 4s ease-in-out infinite;
}

@keyframes shimmerMove {
    0% { background-position: 0% 0%; }
    25% { background-position: 100% 0%; }
    50% { background-position: 100% 100%; }
    75% { background-position: 0% 100%; }
    100% { background-position: 0% 0%; }
}

/* 价格周期 */
.splash-price-period {
    display: block;
    font-size: 14px;
    color: var(--gold);
    opacity: 0.7;
    font-weight: 500;
    letter-spacing: 2px;
    margin-top: 2px;
}

/* 星星装饰 */
.highlight-star {
    color: var(--gold);
    font-size: 14px;
    opacity: 0.7;
}

/* 紧急提示 */
.splash-urgency {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-bottom: 20px;
    padding: 10px 16px;
    background: rgba(220, 38, 38, 0.08);
    border: 1px solid rgba(220, 38, 38, 0.2);
    border-radius: 8px;
    font-size: 13px;
    color: #fca5a5;
    animation: urgencyPulse 2s ease-in-out infinite;
}

@keyframes urgencyPulse {
    0%, 100% { border-color: rgba(220, 38, 38, 0.2); background: rgba(220, 38, 38, 0.06); }
    50% { border-color: rgba(220, 38, 38, 0.4); background: rgba(220, 38, 38, 0.12); }
}

.urgency-icon {
    font-size: 16px;
    flex-shrink: 0;
}

/* 主按钮加大 */
.splash-main-btn {
    display: block !important;
    width: 100%;
    padding: 16px 32px !important;
    font-size: 17px !important;
    letter-spacing: 2px;
    background: linear-gradient(135deg, #d4af37 0%, #f5df8a 50%, #b8941f 100%) !important;
    color: #111 !important;
    font-weight: 800 !important;
    border-radius: 50px !important;
    box-shadow: 0 8px 35px rgba(212, 175, 55, 0.4);
    animation: mainBtnGlow 2.5s ease-in-out infinite;
}

.splash-main-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 45px rgba(212, 175, 55, 0.55);
}

@keyframes mainBtnGlow {
    0%, 100% { box-shadow: 0 8px 35px rgba(212, 175, 55, 0.35); }
    50% { box-shadow: 0 8px 50px rgba(212, 175, 55, 0.6); }
}

/* 卡片强化 */
.splash-card {
    border: 2px solid rgba(212, 175, 55, 0.3);
    box-shadow:
        0 0 80px rgba(212, 175, 55, 0.1),
        0 0 150px rgba(11, 35, 69, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

/* 增强光效 */
.splash-glow {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
}

/* 价格数字增强 */
.splash-price-num {
    font-size: 80px;
    filter: drop-shadow(0 4px 25px rgba(212, 175, 55, 0.4))
            drop-shadow(0 0 60px rgba(212, 175, 55, 0.2));
}

/* 修改ribbon配合hot-tag */
.splash-ribbon {
    right: 20px;
    top: 24px;
    font-size: 11px;
    padding: 5px 14px;
}

/* ===============================
   13. Pricing Section（专业课程体系）
   =============================== */
.pricing-section {
    background: linear-gradient(180deg, var(--bg), #0c111c 50%, var(--bg));
}

.pricing-grid {
    display: grid;
    gap: 14px;
    margin-bottom: 24px;
}

.pricing-card {
    background: linear-gradient(145deg, rgba(17, 25, 42, 0.8), rgba(10, 15, 25, 0.9));
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    padding: 22px 20px;
    transition: all var(--transition-smooth);
    position: relative;
}

.pricing-card:hover {
    border-color: rgba(212, 175, 55, 0.2);
    background: linear-gradient(145deg, rgba(20, 30, 50, 0.9), rgba(12, 18, 30, 0.95));
}

.pricing-card-header {
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.pricing-icon {
    font-size: 24px;
}

.pricing-card-header h3 {
    font-size: 17px;
    color: var(--white);
    font-weight: 600;
}

.pricing-subtitle {
    font-size: 11px;
    color: var(--text-dim);
    display: block;
    width: 100%;
    margin-top: 2px;
    margin-left: 34px;
}

.pricing-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pricing-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.pricing-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.pricing-label {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
    white-space: nowrap;
}

.pricing-dots {
    flex: 1;
    border-bottom: 1px dotted rgba(255, 255, 255, 0.1);
    min-width: 12px;
}

.pricing-value {
    font-size: 14px;
    color: var(--text-secondary);
    white-space: nowrap;
}

/* 到店咨询提示 */
.pricing-footer {
    text-align: center;
}

.pricing-footer-inner {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: 30px;
    background: rgba(212, 175, 55, 0.06);
    border: 1px solid rgba(212, 175, 55, 0.15);
    font-size: 13px;
    color: var(--text-muted);
}

.pricing-footer-inner p {
    color: var(--text-muted);
}

/* ===============================
   14. Membership Section（会员价格）
   =============================== */
.membership-section {
    background: linear-gradient(180deg, var(--bg), #0a1420 50%, var(--bg));
}

.membership-grid {
    display: grid;
    gap: 14px;
    margin-bottom: 24px;
}

.membership-card {
    background: linear-gradient(160deg, #111c2e, #0b1320);
    border: 1px solid rgba(212, 175, 55, 0.12);
    border-radius: 18px;
    padding: 2px;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.membership-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.08), transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-smooth);
    pointer-events: none;
    z-index: 1;
}

.membership-card:hover {
    border-color: rgba(212, 175, 55, 0.3);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(212, 175, 55, 0.06);
}

.membership-card:hover::before {
    opacity: 1;
}

.membership-card-inner {
    background: linear-gradient(160deg, rgba(17, 28, 46, 0.6), rgba(11, 19, 32, 0.8));
    border-radius: 16px;
    padding: 22px 20px;
    text-align: center;
    position: relative;
    z-index: 0;
}

.membership-icon-wrap {
    width: 48px;
    height: 48px;
    margin: 0 auto 12px;
    border-radius: 50%;
    background: rgba(212, 175, 55, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.membership-icon {
    font-size: 24px;
}

.membership-card-inner h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 12px;
}

.membership-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
    margin-bottom: 12px;
}

.membership-symbol {
    font-size: 16px;
    color: var(--gold);
    font-weight: 700;
}

.membership-num {
    font-size: 34px;
    font-weight: 900;
    color: var(--gold-light);
    line-height: 1;
    font-family: "Cormorant Garamond", "Georgia", serif;
    background: linear-gradient(180deg, #f5df8a 0%, #d4af37 50%, #b8941f 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.membership-unit {
    font-size: 13px;
    color: var(--text-muted);
}

.membership-tag {
    display: inline-block;
    font-size: 10px;
    color: var(--gold);
    padding: 3px 12px;
    border-radius: 12px;
    background: rgba(212, 175, 55, 0.08);
    border: 1px solid rgba(212, 175, 55, 0.2);
    letter-spacing: 1px;
}

/* 到店咨询提示 */
.membership-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    margin-bottom: 24px;
    border-radius: 12px;
    background: rgba(212, 175, 55, 0.04);
    border: 1px solid rgba(212, 175, 55, 0.1);
    font-size: 13px;
    color: var(--text-muted);
    text-align: center;
}

.notice-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

/* CTA 按钮组 */
.membership-cta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.membership-cta .btn-primary,
.membership-cta .btn-outline,
.membership-cta .btn-outline-dark {
    flex: 1;
    min-width: 100px;
    font-size: 14px;
    padding: 12px 16px;
}

/* ===============================
   12. Contact Section
   =============================== */
.contact-card {
    background: linear-gradient(180deg, var(--blue-card), var(--bg));
    border-radius: 24px;
    padding: 36px 24px;
    text-align: center;
    border: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    opacity: 0.5;
}

.contact-avatar {
    width: 72px;
    height: 72px;
    margin: 0 auto;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    color: #111;
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.25);
}

.contact-card h3 {
    margin-top: 16px;
    font-size: 22px;
    color: var(--white);
}

.contact-subtitle {
    color: var(--gold);
    font-size: 14px;
    margin-bottom: 18px;
}

.contact-phone {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--white);
    margin: 16px 0;
    transition: all var(--transition-fast);
}

.contact-phone:hover {
    color: var(--gold-light);
}

.contact-info {
    color: var(--text-muted);
    font-size: 14px;
    margin: 16px 0;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.info-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.6;
}

.contact-buttons {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.contact-btn {
    flex: 1;
    font-size: 14px;
}

/* ===============================
   13. Footer
   =============================== */
.footer {
    padding: 40px 0 100px;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand {
    margin-bottom: 18px;
}

.footer-brand .logo {
    justify-content: center;
    font-size: 18px;
    margin-bottom: 6px;
}

.footer-brand p {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-info {
    margin-bottom: 20px;
}

.footer-info p {
    font-size: 12px;
    color: var(--text-muted);
    margin: 4px 0;
}

.footer-copy {
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.footer-copy p {
    font-size: 11px;
    color: var(--text-dim);
}

/* ===============================
   14. Mobile Bottom Bar
   =============================== */
.mobile-bar {
    position: fixed;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 32px);
    max-width: 440px;
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    padding: 8px 12px 8px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1000;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
    transition: all var(--transition-smooth);
}

.mobile-bar:hover {
    border-color: rgba(212, 175, 55, 0.4);
}

.mobile-bar-info strong {
    font-size: 13px;
    display: block;
    color: var(--white);
    line-height: 1.4;
}

.mobile-bar-info span {
    font-size: 10px;
    color: var(--text-muted);
}

.mobile-bar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mobile-bar-call {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--white);
    transition: all var(--transition-fast);
}

.mobile-bar-call:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--gold);
}

.mobile-bar-btn {
    padding: 10px 22px;
    border-radius: 30px;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    color: #111;
    font-weight: 700;
    font-size: 14px;
    transition: all var(--transition-smooth);
    white-space: nowrap;
}

.mobile-bar-btn:hover {
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.35);
}

.mobile-bar-btn:active {
    transform: scale(0.95);
}

/* ===============================
   15. Back to Top Button
   =============================== */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 16px;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(17, 24, 39, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-smooth);
    cursor: pointer;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    border-color: var(--gold);
    color: var(--gold);
    box-shadow: 0 4px 20px var(--gold-glow);
}

/* ===============================
   16. Image Lightbox
   =============================== */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    padding: 20px;
    cursor: zoom-out;
}

.lightbox-overlay.active {
    display: flex;
}

.lightbox-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all var(--transition-fast);
    z-index: 10;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--gold);
    color: var(--gold);
}

.lightbox-img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    cursor: default;
    animation: lightboxIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes lightboxIn {
    from {
        opacity: 0;
        transform: scale(0.92);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 空间卡片可点击提示 */
.space-card {
    cursor: pointer;
}

/* ===============================
   18b. Splash Detail Modal（夏日畅游活动详情弹窗）
   =============================== */
.splash-detail-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.splash-detail-overlay.active {
    opacity: 1;
    visibility: visible;
}

.splash-detail-modal {
    background: linear-gradient(170deg, #0d1f3c 0%, #0a1628 30%, #071220 100%);
    border: 1.5px solid rgba(212, 175, 55, 0.35);
    border-radius: 20px;
    padding: 32px 24px 24px;
    max-width: 440px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow:
        0 0 80px rgba(212, 175, 55, 0.12),
        0 0 200px rgba(11, 35, 69, 0.4),
        0 24px 60px rgba(0, 0, 0, 0.6);
    animation: splashDetailIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes splashDetailIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.splash-detail-close {
    position: absolute;
    right: 12px;
    top: 12px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    z-index: 2;
}

.splash-detail-close:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--white);
}

/* 头部 */
.splash-detail-header {
    text-align: center;
    margin-bottom: 20px;
}

.splash-detail-badge {
    display: inline-block;
    padding: 4px 14px;
    background: linear-gradient(135deg, #d4af37, #b8941f);
    color: #111;
    font-size: 12px;
    font-weight: 800;
    border-radius: 20px;
    letter-spacing: 2px;
    margin-bottom: 10px;
}

.splash-detail-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 2px;
    line-height: 1.4;
}

/* 价格区 */
.splash-detail-price-box {
    text-align: center;
    padding: 20px;
    margin-bottom: 24px;
    background: rgba(212, 175, 55, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.15);
    border-radius: 16px;
    position: relative;
}

.splash-detail-price {
    line-height: 1;
    margin-bottom: 8px;
}

.splash-detail-symbol {
    font-size: 24px;
    color: var(--gold);
    font-weight: 700;
    vertical-align: super;
}

.splash-detail-num {
    font-size: 64px;
    font-weight: 900;
    font-family: "Cormorant Garamond", "Georgia", serif;
    background: linear-gradient(180deg, #f5df8a 0%, #d4af37 40%, #b8941f 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 4px 20px rgba(212, 175, 55, 0.35));
}

.splash-detail-price-tip {
    font-size: 13px;
    color: #f87171;
    font-weight: 600;
    letter-spacing: 1px;
}

/* 内容区 */
.splash-detail-section {
    margin-bottom: 20px;
}

.splash-detail-section-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--gold-light);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: 1px;
}

.section-title-icon {
    font-size: 18px;
}

/* 福利列表 */
.splash-detail-benefits {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.splash-detail-benefits li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.04);
}

.benefit-dot {
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    background: var(--gold);
    border-radius: 50%;
    margin-top: 8px;
    box-shadow: 0 0 8px rgba(212, 175, 55, 0.5);
}

/* 适用项目标签 */
.splash-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.splash-detail-tags span {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(212, 175, 55, 0.08);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.splash-detail-tags span:hover {
    background: rgba(212, 175, 55, 0.15);
    border-color: rgba(212, 175, 55, 0.4);
    color: var(--gold-light);
}

/* CTA */
.splash-detail-cta {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.splash-detail-urge {
    font-size: 13px;
    color: #fca5a5;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.splash-detail-btn {
    display: block !important;
    width: 100%;
    padding: 14px 24px !important;
    font-size: 16px !important;
    font-weight: 800 !important;
    letter-spacing: 2px;
    border-radius: 50px !important;
    background: linear-gradient(135deg, #d4af37 0%, #f5df8a 50%, #b8941f 100%) !important;
    color: #111 !important;
    box-shadow: 0 6px 30px rgba(212, 175, 55, 0.35);
}

.splash-detail-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(212, 175, 55, 0.5);
}

/* ===============================
   17. WeChat Modal
   =============================== */
.wechat-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.88);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 20px;
}

.wechat-overlay.active {
    display: flex;
}

.wechat-modal {
    width: 100%;
    max-width: 340px;
    background: linear-gradient(180deg, #1a2335, var(--card));
    padding: 32px 24px;
    border-radius: 24px;
    text-align: center;
    border: 1px solid var(--glass-border);
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.wechat-close {
    position: absolute;
    right: 12px;
    top: 12px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--transition-fast);
    background: rgba(255, 255, 255, 0.04);
}

.wechat-close:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

.wechat-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.wechat-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #d4af37, #b8941f);
    color: #111;
    font-size: 20px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(212, 175, 55, 0.3);
}

.wechat-header-text {
    text-align: left;
}

.wechat-header-text h3 {
    font-size: 18px;
    color: var(--white);
    font-weight: 700;
}

.wechat-header-text span {
    font-size: 12px;
    color: var(--text-muted);
}

.wechat-qrcode {
    margin: 12px 0;
}

.qrcode-img {
    width: 200px;
    height: 200px;
    margin: 0 auto;
    border-radius: 12px;
    display: block;
    border: 2px solid rgba(212, 175, 55, 0.15);
}

.wechat-text {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 12px 0;
    line-height: 1.8;
}

.wechat-actions {
    margin-top: 4px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.wechat-call-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px 20px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
    background: rgba(212, 175, 55, 0.12);
    border: 1px solid rgba(212, 175, 55, 0.3);
    transition: all var(--transition-smooth);
}

.wechat-call-btn:hover {
    background: rgba(212, 175, 55, 0.2);
    border-color: var(--gold);
    box-shadow: 0 0 20px var(--gold-glow);
}

.wechat-phone {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 8px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.wechat-phone a {
    color: var(--gold-light);
    font-weight: 600;
}

.wechat-phone a:hover {
    color: var(--gold);
}

/* ===============================
   17. Scroll Reveal Animations
   =============================== */
.reveal {
    opacity: 0;
    transform: translateY(35px);
    transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 交错延迟 */
.why-card.reveal:nth-child(1) { transition-delay: 0s; }
.why-card.reveal:nth-child(2) { transition-delay: 0.07s; }
.why-card.reveal:nth-child(3) { transition-delay: 0.14s; }
.why-card.reveal:nth-child(4) { transition-delay: 0.21s; }
.why-card.reveal:nth-child(5) { transition-delay: 0.28s; }
.why-card.reveal:nth-child(6) { transition-delay: 0.35s; }

.space-card.reveal:nth-child(1) { transition-delay: 0s; }
.space-card.reveal:nth-child(2) { transition-delay: 0.05s; }
.space-card.reveal:nth-child(3) { transition-delay: 0.10s; }
.space-card.reveal:nth-child(4) { transition-delay: 0.15s; }
.space-card.reveal:nth-child(5) { transition-delay: 0.20s; }
.space-card.reveal:nth-child(6) { transition-delay: 0.25s; }
.space-card.reveal:nth-child(7) { transition-delay: 0.30s; }
.space-card.reveal:nth-child(8) { transition-delay: 0.35s; }
.space-card.reveal:nth-child(9) { transition-delay: 0.40s; }
.space-card.reveal:nth-child(10) { transition-delay: 0.45s; }

.course-card.reveal:nth-child(1) { transition-delay: 0s; }
.course-card.reveal:nth-child(2) { transition-delay: 0.08s; }
.course-card.reveal:nth-child(3) { transition-delay: 0.16s; }
.course-card.reveal:nth-child(4) { transition-delay: 0.24s; }

.summer-card.reveal:nth-child(1) { transition-delay: 0s; }
.summer-card.reveal:nth-child(2) { transition-delay: 0.08s; }
.summer-card.reveal:nth-child(3) { transition-delay: 0.16s; }

.pricing-card.reveal:nth-child(1) { transition-delay: 0s; }
.pricing-card.reveal:nth-child(2) { transition-delay: 0.06s; }
.pricing-card.reveal:nth-child(3) { transition-delay: 0.12s; }
.pricing-card.reveal:nth-child(4) { transition-delay: 0.18s; }
.pricing-card.reveal:nth-child(5) { transition-delay: 0.24s; }

.membership-card.reveal:nth-child(1) { transition-delay: 0s; }
.membership-card.reveal:nth-child(2) { transition-delay: 0.06s; }
.membership-card.reveal:nth-child(3) { transition-delay: 0.12s; }
.membership-card.reveal:nth-child(4) { transition-delay: 0.18s; }
.membership-card.reveal:nth-child(5) { transition-delay: 0.24s; }

/* ===============================
   18. Interactive States
   =============================== */
/* 所有按钮按下反馈 */
.btn-primary:active,
.btn-outline:active,
.btn-outline-dark:active,
.mobile-bar-btn:active,
.tab-btn:active {
    transform: scale(0.96) !important;
    transition: transform 0.1s !important;
}

/* 链接悬停光泽 */
a[href^="tel"]:hover {
    filter: brightness(1.1);
}

/* 卡片悬停整体 */
.why-card:hover,
.course-card:hover,
.summer-card:hover,
.splash-card:hover,
.pricing-card:hover,
.membership-card:hover {
    border-color: rgba(212, 175, 55, 0.2);
}

/* 可点击卡片光标反馈 */
.pricing-card,
.membership-card,
.promo-banner,
.pricing-footer-inner,
.brand-card {
    cursor: pointer;
}

.promo-banner:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.pricing-footer-inner:hover {
    background: rgba(212, 175, 55, 0.12);
    border-color: rgba(212, 175, 55, 0.3);
    color: var(--gold-light);
}

.pricing-footer-inner:hover p {
    color: var(--gold-light);
}

/* ===============================
   19. Performance Optimizations
   =============================== */
/* 使用 will-change 提示浏览器优化 */
.hero-bg {
    will-change: transform;
}

.space-card {
    will-change: transform;
}

/* 减少重绘 */
.navbar,
.mobile-bar,
.back-to-top {
    will-change: transform;
}

/* 图片懒加载预留样式 */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.4s ease;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

/* ===============================
   20. Reduced Motion
   =============================== */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .hero-bg {
        animation: none;
    }

    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .fade-up {
        animation: none;
        opacity: 1;
        transform: none;
    }

    .scroll-indicator {
        animation: none;
    }

    .hero-light-effect {
        animation: none;
    }
}

/* ===============================
   21. Desktop & Tablet Responsive
   =============================== */

/* 平板 (≥ 768px) */
@media (min-width: 768px) {
    :root {
        --container-padding: 32px;
        --section-gap: 90px;
    }

    .container {
        max-width: 720px;
    }

    /* 导航 */
    .nav-links {
        display: flex;
        gap: 28px;
        align-items: center;
    }

    .nav-links a {
        font-size: 13px;
        color: var(--text-muted);
        position: relative;
        padding: 4px 0;
        transition: color var(--transition-fast);
    }

    .nav-links a::after {
        content: "";
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 0;
        height: 1px;
        background: var(--gold);
        transition: width var(--transition-smooth);
    }

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

    .nav-links a:hover::after {
        width: 100%;
    }

    /* Hero */
    .hero {
        align-items: center;
        padding-bottom: 0;
    }

    .hero-title {
        font-size: 56px;
    }

    .hero-desc {
        font-size: 17px;
    }

    .hero-tags span {
        font-size: 13px;
        padding: 6px 16px;
    }

    .scroll-indicator {
        position: absolute;
        bottom: 30px;
        left: 50%;
        transform: translateX(-50%);
        margin-top: 0;
    }

    /* 品牌 */
    .brand-card {
        padding: 48px 40px;
    }

    .brand-title {
        font-size: 32px;
    }

    .brand-stats {
        gap: 20px;
    }

    .stat-num {
        font-size: 32px;
    }

    /* 为什么选择 */
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    /* 空间 */
    .spaces-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }

    .space-card {
        height: 300px;
    }

    /* 课程 */
    .course-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 18px;
    }

    /* 暑期培训 */
    .summer-cards {
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }

    .summer-promos {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 专业课程 */
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .pricing-card:last-child {
        grid-column: 1 / -1;
        max-width: 400px;
        justify-self: center;
        width: 100%;
    }

    /* 会员价格 */
    .membership-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .membership-card:last-child {
        grid-column: 1 / -1;
        max-width: 380px;
        justify-self: center;
        width: 100%;
    }

    .membership-cta {
        max-width: 500px;
        margin: 0 auto;
    }

    /* 联系 */
    .contact-card {
        padding: 48px 40px;
    }

    .contact-buttons {
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }
}

/* 桌面 (≥ 1024px) */
@media (min-width: 1024px) {
    .container {
        max-width: 960px;
    }

    .hero-title {
        font-size: 64px;
    }

    .hero-desc {
        font-size: 18px;
    }

    .hero-buttons {
        max-width: 480px;
    }

    .brand-card {
        padding: 56px 56px;
        border-radius: 28px;
    }

    .brand-title {
        font-size: 36px;
    }

    .brand-desc {
        font-size: 15px;
        max-width: 700px;
    }

    .brand-stats {
        max-width: 500px;
        margin: 0 auto;
        padding-top: 28px;
    }

    .stat-num {
        font-size: 36px;
    }

    /* 为什么选择 — 3列 */
    .why-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }

    /* 空间 — 3列 */
    .spaces-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .space-card:nth-child(1) {
        grid-column: span 2;
        height: 340px;
    }

    /* 课程 */
    .course-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .tab-btn {
        padding: 12px 32px;
        font-size: 15px;
    }

    /* 专业课程 — 3列 */
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }

    .pricing-card:last-child {
        grid-column: span 1;
        max-width: none;
    }

    /* 会员价格 */
    .membership-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }

    .membership-card:last-child {
        grid-column: span 1;
        max-width: none;
    }

    .splash-price-num {
        font-size: 96px;
    }

    .splash-main-btn {
        font-size: 18px !important;
        padding: 18px 36px !important;
    }

    .splash-card {
        max-width: 600px;
        margin: 0 auto;
        padding: 56px 40px;
    }

    .splash-urgency {
        font-size: 14px;
    }

    /* Contact */
    .contact-card {
        max-width: 500px;
        margin: 0 auto;
        border-radius: 28px;
    }

    /* 每屏区块更大间距 */
    .section {
        padding: 100px 0;
    }

    .section-title h2 {
        font-size: 34px;
    }
}

/* 大桌面 (≥ 1280px) */
@media (min-width: 1280px) {
    .container {
        max-width: 1200px;
    }

    .hero {
        min-height: 800px;
    }

    .hero-title {
        font-size: 72px;
    }

    .spaces-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }

    .space-card:nth-child(1) {
        grid-column: span 2;
        grid-row: span 2;
        height: auto;
    }

    .space-card:nth-child(10) {
        grid-column: span 2;
    }

    .space-card {
        height: 280px;
    }

    .course-cards {
        grid-template-columns: repeat(3, 1fr);
    }

    /* 主推活动大屏强化 */
    .splash-card {
        max-width: 650px;
        padding: 64px 48px;
    }

    .splash-price-num {
        font-size: 108px;
    }

    .splash-main-btn {
        font-size: 19px !important;
        padding: 20px 40px !important;
    }

    .why-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .pricing-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* ===============================
   22. Print Styles
   =============================== */
@media print {
    .navbar,
    .mobile-bar,
    .back-to-top,
    .wechat-overlay,
    .scroll-indicator {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .hero {
        height: auto;
        min-height: auto;
    }
}