/* ===== 全局重置与字体 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", "PingFang SC", sans-serif;
    background: linear-gradient(160deg, #082f49 0%, #0c4a6e 50%, #0e7490 100%);
    color: #e2f3fb;
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ===== 导航 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(8, 47, 73, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(103, 232, 249, 0.18);
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.3);
}
.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}
.nav-logo {
    font-size: 22px;
    font-weight: 700;
    color: #67e8f9;
    text-decoration: none;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, #67e8f9, #a5f3fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.nav-links {
    display: flex;
    gap: 6px;
    align-items: center;
}
.nav-links a {
    color: #d1f4ff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: 20px;
    transition: all 0.25s ease;
    white-space: nowrap;
}
.nav-links a:hover {
    background: rgba(103, 232, 249, 0.18);
    color: #ffffff;
    transform: translateY(-1px);
}
@media (max-width: 768px) {
    .nav-links a {
        font-size: 12px;
        padding: 6px 8px;
    }
    .nav-logo {
        font-size: 18px;
    }
}

/* ===== Hero 区 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding: 120px 24px 80px;
    background: radial-gradient(ellipse at 20% 50%, rgba(14, 116, 144, 0.4) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(103, 232, 249, 0.15) 0%, transparent 50%);
}
.hero::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 120px;
    background: linear-gradient(to top, #0b3b5e 0%, transparent 100%);
    border-radius: 50% 50% 0 0 / 15% 15% 0 0;
    opacity: 0.35;
}
.hero-content {
    max-width: 960px;
    position: relative;
    z-index: 2;
}
.hero h1 {
    font-size: clamp(2rem, 5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 28px;
    letter-spacing: 1px;
    color: #ffffff;
    text-shadow: 0 4px 30px rgba(103, 232, 249, 0.3);
}
.hero .subtitle {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: #a5f3fc;
    margin-bottom: 24px;
    background: rgba(8, 47, 73, 0.5);
    display: inline-block;
    padding: 8px 22px;
    border-radius: 30px;
    border: 1px solid rgba(103, 232, 249, 0.25);
}
.hero-img {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}
.hero-img img {
    max-width: 220px;
    border-radius: 20px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
    border: 2px solid rgba(103, 232, 249, 0.25);
    transition: all 0.4s ease;
}
.hero-img img:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: rgba(165, 243, 252, 0.8);
    box-shadow: 0 22px 60px rgba(103, 232, 249, 0.25);
}

/* ===== 通用区块 ===== */
.section {
    padding: 90px 24px;
    max-width: 1280px;
    margin: 0 auto;
    position: relative;
}
.section-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #67e8f9;
    background: rgba(103, 232, 249, 0.12);
    padding: 6px 18px;
    border-radius: 30px;
    margin-bottom: 14px;
    border: 1px solid rgba(103, 232, 249, 0.2);
}
.section-title {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 700;
    margin-bottom: 20px;
    color: #ffffff;
    line-height: 1.3;
}
.section-desc {
    font-size: 1rem;
    color: #b8dff0;
    max-width: 800px;
    margin: 0 auto 50px;
}

/* ===== GEO 介绍 ===== */
#geo-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 80px 24px;
}
.geo-text p {
    font-size: 1.05rem;
    color: #c3e8f6;
    margin-bottom: 24px;
    text-align: justify;
}
.geo-img img {
    width: 100%;
    max-width: 480px;
    border-radius: 24px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(103, 232, 249, 0.3);
}
@media (max-width: 992px) {
    #geo-intro {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .geo-text p {
        text-align: center;
    }
    .geo-img img {
        margin: 0 auto;
    }
}

/* ===== 数据统计 ===== */
#data-stats {
    padding: 80px 24px;
    background: rgba(8, 47, 73, 0.35);
    border-radius: 32px;
    margin: 40px auto;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}
.stat-card {
    text-align: center;
    padding: 36px 20px;
    background: linear-gradient(145deg, rgba(14, 116, 144, 0.3), rgba(8, 47, 73, 0.5));
    border-radius: 20px;
    border: 1px solid rgba(103, 232, 249, 0.2);
    box-shadow: inset 0 0 40px rgba(103, 232, 249, 0.05);
    transition: all 0.3s ease;
}
.stat-card:hover {
    transform: translateY(-6px);
    border-color: rgba(103, 232, 249, 0.5);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), 0 0 40px rgba(103, 232, 249, 0.08);
}
.stat-card .num {
    font-size: 2.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #67e8f9, #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}
.stat-card .label {
    font-size: 0.95rem;
    color: #a5d8ef;
    letter-spacing: 1px;
}
@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 520px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== 核心优势 ===== */
#core-advantages {
    padding: 80px 24px;
}
.adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 40px;
}
.adv-card {
    background: linear-gradient(160deg, rgba(14, 116, 144, 0.25), rgba(8, 47, 73, 0.4));
    border-radius: 24px;
    padding: 40px 30px;
    border: 1px solid rgba(103, 232, 249, 0.15);
    position: relative;
    overflow: hidden;
    transition: all 0.35s ease;
}
.adv-card::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 140px;
    height: 140px;
    background: radial-gradient(circle, rgba(103, 232, 249, 0.2), transparent 70%);
    border-radius: 50%;
}
.adv-card:hover {
    transform: translateY(-8px);
    background: linear-gradient(160deg, rgba(14, 116, 144, 0.4), rgba(8, 47, 73, 0.6));
    border-color: rgba(103, 232, 249, 0.4);
}
.adv-card img {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: 16px;
    margin-bottom: 20px;
}
.adv-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
}
.adv-card p {
    color: #b0d5e8;
    font-size: 0.95rem;
}
@media (max-width: 768px) {
    .adv-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== 品牌故事 ===== */
#brand-story {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 80px 24px;
    margin: 40px auto;
    background: rgba(8, 47, 73, 0.4);
    border-radius: 32px;
}
.story-text p {
    margin-bottom: 20px;
    color: #c3e8f6;
    font-size: 1.02rem;
    text-align: justify;
}
.story-img img {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(103, 232, 249, 0.2);
}
@media (max-width: 992px) {
    #brand-story {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .story-text p {
        text-align: center;
    }
}

/* ===== 游戏推荐 ===== */
#game-recommend {
    padding: 80px 24px;
}
.game-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 40px;
}
.game-card {
    background: linear-gradient(150deg, rgba(14, 116, 144, 0.3), rgba(8, 47, 73, 0.5));
    border-radius: 22px;
    overflow: hidden;
    border: 1px solid rgba(103, 232, 249, 0.15);
    transition: all 0.35s ease;
}
.game-card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}
.game-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid rgba(103, 232, 249, 0.15);
}
.game-card-body {
    padding: 24px;
}
.game-card-body h3 {
    font-size: 1.2rem;
    color: #ffffff;
    margin-bottom: 8px;
}
.game-card-body p {
    color: #b0d5e8;
    font-size: 0.9rem;
    margin-bottom: 16px;
}
.game-tag {
    display: inline-block;
    background: rgba(103, 232, 249, 0.15);
    color: #67e8f9;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-right: 6px;
}
@media (max-width: 992px) {
    .game-grid {
        grid-template-columns: 1fr 1fr;
    }
}
@media (max-width: 620px) {
    .game-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== 热门排行 ===== */
#rankings {
    padding: 80px 24px;
    background: rgba(8, 47, 73, 0.35);
    border-radius: 32px;
    margin: 40px auto;
}
.rank-list {
    max-width: 800px;
    margin: 0 auto;
}
.rank-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 16px 24px;
    background: rgba(14, 116, 144, 0.15);
    border-radius: 16px;
    margin-bottom: 14px;
    border: 1px solid rgba(103, 232, 249, 0.1);
    transition: all 0.25s ease;
}
.rank-item:hover {
    background: rgba(14, 116, 144, 0.3);
    border-color: rgba(103, 232, 249, 0.4);
    transform: translateX(8px);
}
.rank-num {
    font-size: 1.5rem;
    font-weight: 800;
    color: #67e8f9;
    min-width: 40px;
    text-align: center;
}
.rank-name {
    flex: 1;
    color: #ffffff;
    font-weight: 600;
}
.rank-score {
    color: #a5f3fc;
    font-weight: 700;
}
.rank-item img {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    object-fit: cover;
}

/* ===== 用户口碑 ===== */
#testimonials {
    padding: 80px 24px;
}
.test-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 40px;
}
.test-card {
    background: linear-gradient(150deg, rgba(14, 116, 144, 0.2), rgba(8, 47, 73, 0.4));
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(103, 232, 249, 0.12);
}
.test-card .stars {
    color: #fbbf24;
    font-size: 1rem;
    margin-bottom: 14px;
    letter-spacing: 4px;
}
.test-card p {
    color: #c3e8f6;
    font-size: 0.9rem;
    font-style: italic;
    margin-bottom: 20px;
}
.test-user {
    display: flex;
    align-items: center;
    gap: 12px;
}
.test-user img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}
.test-user span {
    color: #ffffff;
    font-weight: 600;
    font-size: 0.9rem;
}
@media (max-width: 992px) {
    .test-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== 赛事直播 ===== */
#live-stream {
    padding: 80px 24px;
    background: rgba(8, 47, 73, 0.4);
    border-radius: 32px;
    margin: 40px auto;
}
.live-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}
.live-card {
    background: linear-gradient(145deg, rgba(14, 116, 144, 0.3), rgba(8, 47, 73, 0.5));
    border-radius: 22px;
    padding: 30px;
    border: 1px solid rgba(103, 232, 249, 0.2);
    transition: all 0.3s ease;
}
.live-card:hover {
    transform: translateY(-4px);
    border-color: rgba(103, 232, 249, 0.6);
}
.live-card .live-badge {
    display: inline-block;
    background: rgba(239, 68, 68, 0.7);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 12px;
    margin-bottom: 14px;
    letter-spacing: 1px;
}
.live-card h3 {
    color: #ffffff;
    font-size: 1.3rem;
    margin-bottom: 10px;
}
.live-card p {
    color: #b0d5e8;
    font-size: 0.9rem;
    margin-bottom: 16px;
}
.live-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 14px;
    margin-top: 12px;
}
@media (max-width: 768px) {
    .live-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== 新闻 ===== */
#news-list {
    padding: 80px 24px;
    max-width: 1280px;
    margin: 0 auto;
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}
.news-card {
    background: linear-gradient(150deg, rgba(14, 116, 144, 0.2), rgba(8, 47, 73, 0.4));
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(103, 232, 249, 0.15);
    transition: all 0.3s ease;
}
.news-card:hover {
    transform: translateY(-4px);
    border-color: rgba(103, 232, 249, 0.4);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}
.news-date {
    display: inline-block;
    background: rgba(103, 232, 249, 0.12);
    color: #67e8f9;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 16px;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}
.news-card h3 {
    color: #ffffff;
    font-size: 1.2rem;
    margin-bottom: 12px;
    line-height: 1.4;
}
.news-card h3 a {
    color: inherit;
    text-decoration: none;
}
.news-card h3 a:hover {
    color: #67e8f9;
}
.news-card p {
    color: #b0d5e8;
    font-size: 0.9rem;
    line-height: 1.8;
}
.news-footer-link {
    text-align: center;
    margin-top: 40px;
}
.news-footer-link a {
    display: inline-block;
    background: linear-gradient(135deg, rgba(103, 232, 249, 0.2), rgba(14, 116, 144, 0.2));
    color: #67e8f9;
    padding: 12px 36px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid rgba(103, 232, 249, 0.3);
    transition: all 0.3s ease;
}
.news-footer-link a:hover {
    background: rgba(103, 232, 249, 0.3);
    transform: translateY(-2px);
}
@media (max-width: 900px) {
    .news-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== FAQ ===== */
#faq {
    padding: 80px 24px;
    max-width: 960px;
    margin: 0 auto;
}
.faq-item {
    background: linear-gradient(145deg, rgba(14, 116, 144, 0.15), rgba(8, 47, 73, 0.3));
    border-radius: 18px;
    margin-bottom: 18px;
    border: 1px solid rgba(103, 232, 249, 0.12);
    transition: all 0.3s ease;
    overflow: hidden;
}
.faq-item summary {
    padding: 22px 28px;
    font-size: 1.05rem;
    font-weight: 700;
    color: #ffffff;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}
.faq-item summary::-webkit-details-marker {
    display: none;
}
.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: #67e8f9;
    font-weight: 400;
    transition: transform 0.3s ease;
}
.faq-item[open] summary::after {
    transform: rotate(45deg);
}
.faq-item summary:hover {
    background: rgba(103, 232, 249, 0.05);
}
.faq-answer {
    padding: 0 28px 24px;
    color: #b0d5e8;
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ===== 页脚 ===== */
.footer {
    background: linear-gradient(to bottom, #061e2e, #04121c);
    padding: 60px 24px 30px;
    border-top: 1px solid rgba(103, 232, 249, 0.1);
}
.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
}
.footer h4 {
    color: #67e8f9;
    font-size: 1.1rem;
    margin-bottom: 16px;
    letter-spacing: 1px;
    font-weight: 700;
}
.footer p {
    color: #7ea8c0;
    font-size: 0.9rem;
    line-height: 1.8;
    margin-bottom: 8px;
}
.footer-links a {
    display: block;
    color: #7ea8c0;
    text-decoration: none;
    font-size: 0.9rem;
    padding: 5px 0;
    transition: all 0.2s ease;
}
.footer-links a:hover {
    color: #67e8f9;
    padding-left: 6px;
}
.footer-bottom {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid rgba(103, 232, 249, 0.08);
    text-align: center;
    font-size: 0.85rem;
    color: #557e96;
}
.footer-bottom a {
    color: #67e8f9;
    text-decoration: none;
    margin: 0 8px;
}
.footer-bottom a:hover {
    text-decoration: underline;
}
@media (max-width: 768px) {
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* ===== 通用工具箱 ===== */
.text-center {
    text-align: center;
}
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.lead {
    font-size: 1.1rem;
    color: #a5f3fc;
}

/* 行动呼吁 */
#cta {
    padding: 80px 24px;
    text-align: center;
    background: linear-gradient(150deg, rgba(103, 232, 249, 0.1), rgba(14, 116, 144, 0.2));
    border-radius: 32px;
    margin: 40px auto;
}
.cta-btn {
    display: inline-block;
    background: linear-gradient(135deg, #0e7490, #0891b2);
    color: #fff;
    font-size: 1.1rem;
    font-weight: 700;
    padding: 16px 48px;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 8px 30px rgba(14, 116, 144, 0.5);
    transition: all 0.3s ease;
    letter-spacing: 2px;
    margin: 8px;
}
.cta-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 40px rgba(103, 232, 249, 0.3);
    background: linear-gradient(135deg, #0891b2, #06b6d4);
}