/* roulang page: index */
:root {
    --primary: #d4342a;
    --primary-dark: #a62b24;
    --primary-light: #ff6b61;
    --accent: #f5a623;
    --dark: #0f1920;
    --dark-2: #1a2630;
    --dark-3: #232f3b;
    --light: #f6f7f2;
    --white: #ffffff;
    --text: #1a1a2e;
    --text-light: #6c757d;
    --text-mute: #9aa5b4;
    --border: #e5e7ed;
    --border-light: #eef0f3;
    --success: #27ae60;
    --radius: 18px;
    --radius-sm: 10px;
    --radius-lg: 28px;
    --shadow: 0 4px 28px rgba(15, 25, 32, 0.08);
    --shadow-lg: 0 16px 48px rgba(15, 25, 32, 0.14);
    --shadow-primary: 0 8px 30px rgba(212, 52, 42, 0.28);
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --container-w: 1280px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    background: var(--light);
    color: var(--text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul,
ol {
    list-style: none;
}

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

input,
textarea,
select {
    font: inherit;
    border: none;
    outline: none;
}

/* ========== 容器 ========== */
.container {
    max-width: var(--container-w);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 88px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}

.section-tag {
    display: inline-block;
    padding: 6px 20px;
    background: rgba(212, 52, 42, 0.08);
    color: var(--primary);
    border-radius: 40px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.25;
    color: var(--dark);
    letter-spacing: -0.5px;
    margin-bottom: 14px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 34px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 700;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    letter-spacing: 0.3px;
}

.btn i {
    font-size: 14px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(212, 52, 42, 0.4);
    color: #fff;
}

.btn-primary:active {
    transform: translateY(0px);
    box-shadow: 0 4px 16px rgba(212, 52, 42, 0.25);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: #fff;
    color: #fff;
    transform: translateY(-3px);
}

.btn-outline-dark {
    background: transparent;
    color: var(--dark);
    border-color: var(--dark);
}

.btn-outline-dark:hover {
    background: var(--dark);
    color: #fff;
    transform: translateY(-3px);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), #f08c00);
    color: #1a1a2e;
    box-shadow: 0 8px 28px rgba(245, 166, 35, 0.32);
}

.btn-accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 36px rgba(245, 166, 35, 0.42);
    color: #1a1a2e;
}

.btn-sm {
    padding: 9px 22px;
    font-size: 13px;
}

.btn-lg {
    padding: 18px 44px;
    font-size: 16px;
}

/* ========== 导航 ========== */
.site-nav {
    position: fixed;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    width: calc(100% - 48px);
    max-width: 1240px;
    background: rgba(15, 25, 32, 0.75);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 60px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0 8px 0 20px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.25);
    transition: var(--transition);
}

.site-nav.scrolled {
    background: rgba(15, 25, 32, 0.9);
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.35);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 19px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.5px;
}

.nav-logo i {
    color: var(--accent);
    font-size: 22px;
    background: rgba(245, 166, 35, 0.15);
    border-radius: 50%;
    padding: 7px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.nav-links a {
    color: rgba(255, 255, 255, 0.8);
    padding: 10px 20px;
    border-radius: 40px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

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

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: 16px;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 90px;
    left: 24px;
    right: 24px;
    background: var(--dark);
    border-radius: 20px;
    padding: 20px;
    z-index: 999;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: translateY(-16px);
    pointer-events: none;
    transition: var(--transition);
}

.mobile-menu.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.mobile-menu a {
    display: block;
    padding: 14px 20px;
    border-radius: 14px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 16px;
    font-weight: 500;
}

.mobile-menu a:hover,
.mobile-menu a.active {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

/* ========== Hero ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    background: var(--dark);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('/assets/images/backpic/back-1.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.45;
    transform: scale(1.05);
    animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
    0% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1.12);
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15, 25, 32, 0.92) 0%, rgba(15, 25, 32, 0.65) 50%, rgba(15, 25, 32, 0.82) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding-top: 140px;
    padding-bottom: 80px;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 40px;
    padding-right: 40px;
    width: 100%;
}

.hero-countdown-bar {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    padding: 8px 24px;
    margin-bottom: 28px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-countdown-bar i {
    color: var(--accent);
}

.countdown-timer {
    font-weight: 700;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.5px;
}

.hero h1 {
    font-size: 46px;
    font-weight: 900;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -1px;
    max-width: 800px;
}

.hero-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    max-width: 620px;
    margin-bottom: 36px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 56px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 36px;
}

.hero-stat {
    display: flex;
    flex-direction: column;
}

.hero-stat .number {
    font-size: 32px;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
}

.hero-stat .label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 4px;
}

/* ========== 玩法介绍 ========== */
.play-section {
    background: var(--white);
}

.play-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.play-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.play-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.play-card-image {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.play-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.play-card:hover .play-card-image img {
    transform: scale(1.08);
}

.play-card-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60%;
    background: linear-gradient(to top, rgba(15, 25, 32, 0.3), transparent);
}

.play-card-body {
    padding: 28px;
}

.play-card-body .card-number {
    display: inline-block;
    font-size: 12px;
    font-weight: 800;
    color: var(--primary);
    background: rgba(212, 52, 42, 0.08);
    padding: 4px 14px;
    border-radius: 30px;
    letter-spacing: 1px;
    margin-bottom: 14px;
}

.play-card-body h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.play-card-body p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ========== 奖励预览 ========== */
.reward-section {
    background: var(--dark);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.reward-section::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -100px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(212, 52, 42, 0.25), transparent);
}

.reward-section .section-title {
    color: #fff;
}

.reward-section .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.reward-section .section-tag {
    background: rgba(245, 166, 35, 0.15);
    color: var(--accent);
}

.reward-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.reward-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    padding: 36px 32px;
    transition: var(--transition);
    position: relative;
    backdrop-filter: blur(8px);
}

.reward-card:hover {
    background: rgba(255, 255, 255, 0.09);
    transform: translateY(-6px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.reward-card.featured {
    background: linear-gradient(160deg, rgba(245, 166, 35, 0.15), rgba(212, 52, 42, 0.1));
    border-color: rgba(245, 166, 35, 0.4);
}

.reward-card .badge-hot {
    position: absolute;
    top: -10px;
    right: 20px;
    background: linear-gradient(135deg, var(--accent), #f08c00);
    color: #1a1a2e;
    font-size: 12px;
    font-weight: 800;
    padding: 4px 16px;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.reward-card .reward-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent);
}

.reward-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 6px;
}

.reward-card .reward-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 16px;
}

.reward-card .reward-price {
    font-size: 28px;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 20px;
}

.reward-card .reward-price span {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 400;
}

.reward-list {
    margin-bottom: 24px;
}

.reward-list li {
    padding: 5px 0;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    gap: 8px;
}

.reward-list li i {
    color: var(--accent);
    font-size: 12px;
}

/* ========== 任务进度 ========== */
.progress-section {
    background: var(--white);
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    position: relative;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 32px;
    left: 8%;
    right: 8%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 50%, var(--primary) 100%);
    opacity: 0.25;
}

.step-item {
    text-align: center;
    position: relative;
    z-index: 2;
}

.step-number {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--dark);
    color: #fff;
    font-size: 20px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    border: 4px solid var(--white);
    box-shadow: var(--shadow);
    position: relative;
    z-index: 3;
    transition: var(--transition);
}

.step-item:hover .step-number {
    background: var(--primary);
    transform: scale(1.1);
}

.step-item h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--dark);
}

.step-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    padding: 0 10px;
}

/* ========== 数据指标 ========== */
.metrics-section {
    background: var(--dark-2);
    padding: 72px 0;
    position: relative;
    overflow: hidden;
}

.metrics-section::before {
    content: '\f2ed';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: -60px;
    bottom: -60px;
    font-size: 280px;
    color: rgba(255, 255, 255, 0.04);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    position: relative;
    z-index: 2;
}

.metric-item {
    text-align: center;
}

.metric-item .metric-value {
    font-size: 44px;
    font-weight: 900;
    color: #fff;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
}

.metric-item .metric-value em {
    font-style: normal;
    color: var(--accent);
}

.metric-item .metric-label {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.55);
    margin-top: 8px;
    letter-spacing: 1px;
}

/* ========== 资讯 ========== */
.news-section {
    background: var(--light);
}

.news-layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 44px;
    align-items: start;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.news-item {
    display: flex;
    gap: 20px;
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow);
    transition: var(--transition);
    align-items: flex-start;
}

.news-item:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(212, 52, 42, 0.2);
}

.news-item-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 72px;
    padding: 10px 12px;
    border-radius: 14px;
    background: rgba(212, 52, 42, 0.08);
    color: var(--primary);
    text-align: center;
}

.news-item-date .day {
    font-size: 24px;
    font-weight: 800;
    line-height: 1.2;
}

.news-item-date .month {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.news-item-content {
    flex: 1;
}

.news-item-content h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-item-content h3 a:hover {
    color: var(--primary);
}

.news-item-content p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 8px;
}

.news-item-meta {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--text-mute);
}

.news-item-meta i {
    margin-right: 4px;
}

.news-sidebar {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.news-widget {
    background: var(--white);
    border-radius: var(--radius);
    padding: 28px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow);
}

.news-widget h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--light);
    position: relative;
}

.news-widget h3::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 32px;
    height: 2px;
    background: var(--primary);
}

.widget-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 14px;
    color: var(--text);
}

.widget-list li:last-child {
    border-bottom: none;
}

.widget-list li i {
    color: var(--primary);
    font-size: 12px;
    margin-top: 5px;
}

.widget-list li a:hover {
    color: var(--primary);
}

.widget-card {
    background: linear-gradient(160deg, var(--dark) 0%, var(--dark-2) 100%);
    border-radius: var(--radius);
    padding: 0;
    overflow: hidden;
    border: none;
}

.widget-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.widget-card .widget-card-body {
    padding: 24px;
    color: #fff;
}

.widget-card .widget-card-body h4 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
}

.widget-card .widget-card-body p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 16px;
    line-height: 1.7;
}

.widget-card .btn {
    width: 100%;
}

/* ========== 用户评价 ========== */
.reviews-section {
    background: var(--dark);
    color: #fff;
}

.reviews-section .section-title {
    color: #fff;
}

.reviews-section .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.reviews-section .section-tag {
    background: rgba(212, 52, 42, 0.2);
    color: var(--primary-light);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.review-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
}

.review-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-6px);
}

.review-stars {
    display: flex;
    gap: 4px;
    margin-bottom: 16px;
    color: var(--accent);
    font-size: 13px;
}

.review-text {
    font-size: 15px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 24px;
    font-style: italic;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.review-avatar {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
}

.review-author-info .name {
    font-size: 15px;
    font-weight: 700;
}

.review-author-info .role {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
}

/* ========== FAQ ========== */
.faq-section {
    background: var(--white);
}

.faq-container {
    max-width: 860px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
    background: var(--white);
}

.faq-item:hover {
    border-color: rgba(212, 52, 42, 0.3);
    box-shadow: var(--shadow);
}

.faq-summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 28px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    transition: var(--transition);
}

.faq-summary i {
    color: var(--primary);
    font-size: 14px;
    transition: transform 0.3s;
    flex-shrink: 0;
}

.faq-item details[open] .faq-summary i {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 28px 22px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-light);
    border-top: 1px solid var(--border-light);
    padding-top: 16px;
}

/* ========== CTA ========== */
.cta-section {
    position: relative;
    padding: 100px 0;
    background: url('/assets/images/backpic/back-2.jpg') no-repeat center center;
    background-size: cover;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(15, 25, 32, 0.9) 0%, rgba(212, 52, 42, 0.4) 100%);
}

.cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-inner h2 {
    font-size: 40px;
    font-weight: 900;
    color: #fff;
    margin-bottom: 20px;
    line-height: 1.25;
}

.cta-inner p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: 36px;
}

.cta-inner .btn {
    margin: 0 8px;
}

.cta-tel {
    display: inline-block;
    margin-top: 24px;
    font-size: 22px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 1px;
}

.cta-tel i {
    color: var(--accent);
    margin-right: 8px;
}

/* ========== 保障图标条 ========== */
.guarantee-section {
    background: var(--light);
    padding: 56px 0;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.guarantee-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.guarantee-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    border-radius: var(--radius);
    background: var(--white);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.guarantee-item:hover {
    box-shadow: var(--shadow);
    transform: translateY(-3px);
}

.guarantee-icon {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    background: rgba(212, 52, 42, 0.1);
    color: var(--primary);
    flex-shrink: 0;
}

.guarantee-item h4 {
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--dark);
}

.guarantee-item p {
    font-size: 13px;
    color: var(--text-light);
}

/* ========== 页脚 ========== */
.site-footer {
    background: var(--dark);
    padding: 64px 0 32px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 48px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 340px;
}

.footer-logo {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo i {
    color: var(--accent);
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.55);
}

.footer-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-nav h4,
.footer-contact h4 {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.footer-nav a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    transition: var(--transition);
}

.footer-nav a:hover {
    color: var(--accent);
    padding-left: 6px;
}

.footer-contact {
    max-width: 280px;
}

.footer-contact p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.footer-contact i {
    color: var(--accent);
    margin-top: 3px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 28px;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a:hover {
    color: var(--accent);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .section {
        padding: 72px 0;
    }

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

    .hero h1 {
        font-size: 38px;
    }

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

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

    .steps-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }

    .steps-container::before {
        display: none;
    }

    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

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

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

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

@media (max-width: 768px) {
    .section {
        padding: 56px 0;
    }

    .container {
        padding: 0 20px;
    }

    .site-nav {
        top: 10px;
        width: calc(100% - 32px);
        padding: 0 6px 0 16px;
    }

    .nav-inner {
        height: 56px;
    }

    .nav-logo {
        font-size: 16px;
    }

    .nav-logo i {
        font-size: 16px;
        padding: 5px;
        width: 30px;
        height: 30px;
    }

    .nav-links,
    .nav-actions .btn {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .hero-content {
        padding-top: 120px;
        padding-bottom: 60px;
        padding-left: 20px;
        padding-right: 20px;
    }

    .hero h1 {
        font-size: 30px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-stats {
        gap: 24px;
    }

    .hero-stat .number {
        font-size: 24px;
    }

    .play-cards {
        grid-template-columns: 1fr;
    }

    .reward-cards {
        grid-template-columns: 1fr;
    }

    .steps-container {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .metrics-grid {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }

    .metric-item .metric-value {
        font-size: 32px;
    }

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

    .guarantee-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .cta-inner h2 {
        font-size: 30px;
    }

    .cta-inner .btn {
        margin-bottom: 12px;
        width: 100%;
    }

    .footer-inner {
        flex-direction: column;
        gap: 32px;
    }
}

@media (max-width: 520px) {
    .hero-countdown-bar {
        font-size: 12px;
        padding: 6px 16px;
        flex-wrap: wrap;
    }

    .hero h1 {
        font-size: 26px;
        line-height: 1.3;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .hero-stats {
        gap: 16px;
        flex-direction: column;
    }

    .news-item {
        flex-direction: column;
        padding: 20px;
    }

    .news-item-date {
        flex-direction: row;
        justify-content: flex-start;
        gap: 8px;
        min-width: auto;
        padding: 6px 14px;
    }

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

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