/* ========================================
   MFC - 必撸大赛 主样式表
   CSS/ID前缀: mfc-
   设计风格: 拳击/格斗比赛风格
   ======================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Anton&family=Oswald:wght@300;400;500;600;700&display=swap');

/* ========== CSS Variables ========== */
:root {
    --mfc-primary: #990000;
    --mfc-dark: #1a1a1a;
    --mfc-gold: #d4af37;
    --mfc-text: #ffffff;
    --mfc-link: #ffcc00;
    --mfc-bg-dark: #0d0d0d;
    --mfc-bg-card: #1f1f1f;
    --mfc-border: #333333;
    --mfc-gradient-fire: linear-gradient(135deg, #990000 0%, #cc3300 50%, #d4af37 100%);
    --mfc-gradient-dark: linear-gradient(180deg, #0d0d0d 0%, #1a1a1a 100%);
    --mfc-font-title: 'Anton', sans-serif;
    --mfc-font-body: 'Oswald', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--mfc-font-body);
    background-color: var(--mfc-bg-dark);
    color: var(--mfc-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: var(--mfc-link);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--mfc-gold);
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--mfc-font-title);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ========== 干扰标签隐藏 ========== */
.fight-jammer-block {
    display: none;
}

/* ========== 导航栏 ========== */
#mfc-header {
    background-color: var(--mfc-dark);
    border-bottom: 3px solid var(--mfc-primary);
    padding: 0;
    width: 100%;
    z-index: 1000;
    position: relative;
}

.mfc-nav-container {
    max-width: 1440px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
}

.mfc-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.mfc-logo img {
    height: 50px;
    width: auto;
}

.mfc-logo-text {
    font-family: var(--mfc-font-title);
    font-size: 1.5rem;
    color: var(--mfc-primary);
    letter-spacing: 3px;
}

.mfc-nav-links {
    display: flex;
    list-style: none;
    gap: 0;
}

.mfc-nav-links li a {
    display: block;
    padding: 15px 20px;
    color: var(--mfc-primary);
    font-family: var(--mfc-font-title);
    font-size: 1.1rem;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
}

.mfc-nav-links li a:hover {
    color: var(--mfc-link);
    transform: scale(1.05);
}

.mfc-nav-links li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--mfc-gold);
    transition: width 0.3s ease;
}

.mfc-nav-links li a:hover::after {
    width: 80%;
}

/* 汉堡菜单 */
.mfc-hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    padding: 10px;
}

.mfc-hamburger span {
    width: 28px;
    height: 3px;
    background-color: var(--mfc-primary);
    transition: all 0.3s ease;
}

.mfc-hamburger.mfc-active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mfc-hamburger.mfc-active span:nth-child(2) {
    opacity: 0;
}

.mfc-hamburger.mfc-active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* 侧边滑出菜单 */
.mfc-mobile-menu {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background: var(--mfc-dark);
    border-left: 3px solid var(--mfc-primary);
    z-index: 9999;
    transition: right 0.4s ease;
    padding-top: 80px;
}

.mfc-mobile-menu.mfc-open {
    right: 0;
}

.mfc-mobile-menu a {
    display: block;
    padding: 18px 30px;
    color: var(--mfc-primary);
    font-family: var(--mfc-font-title);
    font-size: 1.2rem;
    border-bottom: 1px solid var(--mfc-border);
    transition: all 0.3s ease;
}

.mfc-mobile-menu a:hover {
    color: var(--mfc-link);
    background: rgba(153, 0, 0, 0.2);
    padding-left: 40px;
}

.mfc-mobile-close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    color: var(--mfc-primary);
    cursor: pointer;
    background: none;
    border: none;
    font-family: var(--mfc-font-title);
}

.mfc-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9998;
}

.mfc-overlay.mfc-show {
    display: block;
}

/* ========== Hero Banner ========== */
#mfc-hero {
    position: relative;
    width: 100%;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.mfc-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    filter: brightness(0.4);
}

.mfc-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(13,13,13,1));
    z-index: 2;
}

.mfc-hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 40px 20px;
}

.mfc-hero-content h1 {
    font-size: 3.5rem;
    color: var(--mfc-text);
    text-shadow: 0 0 30px rgba(153, 0, 0, 0.8), 0 0 60px rgba(153, 0, 0, 0.4);
    margin-bottom: 20px;
    animation: mfc-glow 2s ease-in-out infinite alternate;
}

.mfc-hero-content p {
    font-size: 1.3rem;
    color: #cccccc;
    max-width: 700px;
    margin: 0 auto 30px;
    font-weight: 300;
}

@keyframes mfc-glow {
    from { text-shadow: 0 0 20px rgba(153, 0, 0, 0.6), 0 0 40px rgba(153, 0, 0, 0.3); }
    to { text-shadow: 0 0 40px rgba(212, 175, 55, 0.8), 0 0 80px rgba(212, 175, 55, 0.4); }
}

/* ========== 通用Section ========== */
.mfc-section {
    padding: 80px 20px;
    max-width: 1440px;
    margin: 0 auto;
}

.mfc-section-title {
    font-size: 2.5rem;
    color: var(--mfc-gold);
    text-align: center;
    margin-bottom: 15px;
    position: relative;
}

.mfc-section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--mfc-gradient-fire);
    margin: 15px auto 0;
}

.mfc-section-subtitle {
    text-align: center;
    color: #999;
    font-size: 1.1rem;
    margin-bottom: 50px;
    font-weight: 300;
}

/* ========== 卡片网格 ========== */
.mfc-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.mfc-card {
    background: var(--mfc-bg-card);
    border: 1px solid var(--mfc-border);
    border-radius: 4px;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.mfc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--mfc-gradient-fire);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.mfc-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(153, 0, 0, 0.3);
    border-color: var(--mfc-primary);
}

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

.mfc-card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.mfc-card-body {
    padding: 20px;
}

.mfc-card-title {
    font-size: 1.3rem;
    color: var(--mfc-text);
    margin-bottom: 10px;
    font-family: var(--mfc-font-title);
}

.mfc-card-text {
    color: #aaa;
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 15px;
}

.mfc-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #666;
    font-size: 0.85rem;
}

/* ========== 按钮 ========== */
.mfc-btn {
    display: inline-block;
    padding: 14px 35px;
    font-family: var(--mfc-font-title);
    font-size: 1.1rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    border: 2px solid var(--mfc-primary);
    background: linear-gradient(135deg, var(--mfc-primary), #cc1100);
    color: var(--mfc-text);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    text-align: center;
    clip-path: polygon(8% 0%, 100% 0%, 92% 100%, 0% 100%);
}

.mfc-btn:hover {
    background: linear-gradient(135deg, #cc1100, var(--mfc-gold));
    color: var(--mfc-dark);
    transform: scale(1.03);
    box-shadow: 0 0 20px rgba(153, 0, 0, 0.6);
    animation: mfc-shake 0.3s ease;
}

.mfc-btn-gold {
    background: linear-gradient(135deg, var(--mfc-gold), #b8941e);
    border-color: var(--mfc-gold);
    color: var(--mfc-dark);
}

.mfc-btn-gold:hover {
    background: linear-gradient(135deg, #e6c84a, var(--mfc-gold));
}

@keyframes mfc-shake {
    0%, 100% { transform: translateX(0) scale(1.03); }
    25% { transform: translateX(-2px) scale(1.03); }
    75% { transform: translateX(2px) scale(1.03); }
}

/* ========== 重量级赛事 ========== */
#mfc-heavyweight-bouts {
    background: url('../images/hero-banner.webp') center/cover no-repeat fixed;
    position: relative;
    padding: 80px 20px;
}

#mfc-heavyweight-bouts::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 13, 13, 0.85);
}

#mfc-heavyweight-bouts .mfc-section {
    position: relative;
    z-index: 2;
    padding: 0;
}

.mfc-bout-poster {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 30px;
    background: linear-gradient(135deg, rgba(153,0,0,0.2), rgba(26,26,26,0.9));
    border: 2px solid var(--mfc-primary);
    border-radius: 4px;
    padding: 30px;
    margin-bottom: 30px;
}

.mfc-bout-fighter {
    text-align: center;
}

.mfc-bout-fighter img {
    width: 100%;
    max-width: 300px;
    height: 200px;
    object-fit: cover;
    border: 2px solid var(--mfc-gold);
    margin: 0 auto 15px;
}

.mfc-bout-fighter h3 {
    color: var(--mfc-gold);
    font-size: 1.5rem;
}

.mfc-bout-vs {
    font-family: var(--mfc-font-title);
    font-size: 3rem;
    color: var(--mfc-primary);
    text-shadow: 0 0 20px rgba(153, 0, 0, 0.8);
}

.mfc-countdown {
    text-align: center;
    margin-top: 20px;
}

.mfc-countdown-timer {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.mfc-countdown-item {
    background: var(--mfc-dark);
    border: 1px solid var(--mfc-primary);
    padding: 15px 20px;
    min-width: 80px;
    text-align: center;
}

.mfc-countdown-item .mfc-num {
    font-family: var(--mfc-font-title);
    font-size: 2rem;
    color: var(--mfc-gold);
    display: block;
}

.mfc-countdown-item .mfc-label {
    font-size: 0.8rem;
    color: #999;
    text-transform: uppercase;
}

/* ========== 金腰带得主 ========== */
.mfc-champion-wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.mfc-champion-card {
    background: linear-gradient(135deg, var(--mfc-bg-card), #2a2a2a);
    border: 2px solid var(--mfc-gold);
    border-radius: 4px;
    overflow: hidden;
    text-align: center;
    padding-bottom: 20px;
    transition: all 0.3s ease;
}

.mfc-champion-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
}

.mfc-champion-card img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.mfc-champion-card h3 {
    color: var(--mfc-gold);
    font-size: 1.3rem;
    margin: 15px 0 5px;
    padding: 0 15px;
}

.mfc-champion-card .mfc-record {
    color: #999;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.mfc-champion-card .mfc-belt-icon {
    color: var(--mfc-gold);
    font-size: 1.5rem;
}

/* ========== 挑战者报名 ========== */
#mfc-registration {
    background: var(--mfc-gradient-dark);
    text-align: center;
}

.mfc-reg-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--mfc-bg-card);
    border: 2px solid var(--mfc-primary);
    padding: 40px;
    border-radius: 4px;
}

.mfc-form-group {
    margin-bottom: 20px;
    text-align: left;
}

.mfc-form-group label {
    display: block;
    color: var(--mfc-gold);
    font-family: var(--mfc-font-title);
    margin-bottom: 8px;
    font-size: 1rem;
}

.mfc-form-group input,
.mfc-form-group select,
.mfc-form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: var(--mfc-dark);
    border: 3px solid var(--mfc-border);
    color: var(--mfc-text);
    font-family: var(--mfc-font-body);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.mfc-form-group input:focus,
.mfc-form-group select:focus,
.mfc-form-group textarea:focus {
    outline: none;
    border-color: var(--mfc-primary);
    box-shadow: 0 0 10px rgba(153, 0, 0, 0.3);
}

/* ========== 裁判席 ========== */
.mfc-judge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.mfc-judge-card {
    display: flex;
    gap: 20px;
    background: var(--mfc-bg-card);
    border: 1px solid var(--mfc-border);
    padding: 20px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.mfc-judge-card:hover {
    border-color: var(--mfc-primary);
    box-shadow: 0 5px 20px rgba(153, 0, 0, 0.2);
}

.mfc-judge-card img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--mfc-gold);
    flex-shrink: 0;
}

.mfc-judge-info h3 {
    color: var(--mfc-gold);
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.mfc-judge-info .mfc-role {
    color: var(--mfc-primary);
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.mfc-judge-info p {
    color: #aaa;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* ========== 训练营 ========== */
#mfc-training {
    background: url('../images/training-camp.webp') center/cover no-repeat;
    position: relative;
}

#mfc-training::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 13, 13, 0.9);
}

#mfc-training .mfc-section {
    position: relative;
    z-index: 2;
}

/* ========== 冠军会员 ========== */
.mfc-membership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.mfc-membership-card {
    background: var(--mfc-bg-card);
    border: 2px solid var(--mfc-border);
    border-radius: 4px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.mfc-membership-card.mfc-featured {
    border-color: var(--mfc-gold);
    transform: scale(1.05);
}

.mfc-membership-card:hover {
    border-color: var(--mfc-primary);
    box-shadow: 0 10px 30px rgba(153, 0, 0, 0.3);
}

.mfc-membership-card h3 {
    color: var(--mfc-gold);
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.mfc-membership-price {
    font-family: var(--mfc-font-title);
    font-size: 3rem;
    color: var(--mfc-text);
    margin: 20px 0;
}

.mfc-membership-price span {
    font-size: 1rem;
    color: #999;
}

.mfc-membership-features {
    list-style: none;
    margin-bottom: 30px;
}

.mfc-membership-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--mfc-border);
    color: #ccc;
    font-size: 0.95rem;
}

/* ========== 赞助商 ========== */
#mfc-sponsors {
    background: var(--mfc-dark);
    padding: 60px 20px;
    overflow: hidden;
}

.mfc-sponsor-track {
    display: flex;
    gap: 60px;
    animation: mfc-scroll 20s linear infinite;
}

.mfc-sponsor-track img {
    height: 60px;
    width: auto;
    filter: grayscale(100%) brightness(0.6);
    transition: filter 0.3s ease;
    flex-shrink: 0;
}

.mfc-sponsor-track img:hover {
    filter: grayscale(0%) brightness(1);
}

@keyframes mfc-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ========== APP下载 ========== */
#mfc-app-download {
    background: url('../images/app-gym-bg.webp') center/cover no-repeat;
    position: relative;
    text-align: center;
}

#mfc-app-download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 13, 13, 0.85);
}

#mfc-app-download .mfc-section {
    position: relative;
    z-index: 2;
}

.mfc-app-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.mfc-app-phone img {
    max-width: 280px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(153, 0, 0, 0.4);
}

.mfc-app-info {
    max-width: 500px;
    text-align: left;
}

.mfc-app-info h2 {
    font-size: 2.5rem;
    color: var(--mfc-text);
    margin-bottom: 15px;
}

.mfc-app-info p {
    color: #ccc;
    font-size: 1.1rem;
    margin-bottom: 30px;
    line-height: 1.6;
}

.mfc-app-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

/* ========== 赛场规则 ========== */
.mfc-rules-list {
    max-width: 800px;
    margin: 0 auto;
}

.mfc-rule-item {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: var(--mfc-bg-card);
    border-left: 4px solid var(--mfc-primary);
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.mfc-rule-item:hover {
    border-left-color: var(--mfc-gold);
    background: #252525;
}

.mfc-rule-num {
    font-family: var(--mfc-font-title);
    font-size: 2rem;
    color: var(--mfc-gold);
    min-width: 50px;
}

.mfc-rule-content h3 {
    color: var(--mfc-text);
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.mfc-rule-content p {
    color: #aaa;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* ========== 页脚 ========== */
#mfc-footer {
    background: var(--mfc-dark);
    border-top: 3px solid var(--mfc-primary);
    padding: 60px 20px 30px;
}

.mfc-footer-grid {
    max-width: 1440px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.mfc-footer-col h4 {
    color: var(--mfc-gold);
    font-size: 1.2rem;
    margin-bottom: 20px;
    font-family: var(--mfc-font-title);
}

.mfc-footer-col ul {
    list-style: none;
}

.mfc-footer-col ul li {
    margin-bottom: 10px;
}

.mfc-footer-col ul li a {
    color: #999;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

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

.mfc-social-links {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.mfc-social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--mfc-bg-card);
    border: 1px solid var(--mfc-border);
    border-radius: 50%;
    color: #999;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.mfc-social-links a:hover {
    background: var(--mfc-primary);
    border-color: var(--mfc-primary);
    color: var(--mfc-text);
}

.mfc-footer-bottom {
    max-width: 1440px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid var(--mfc-border);
    text-align: center;
}

.mfc-footer-bottom p {
    color: #666;
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.mfc-age-badge {
    display: inline-block;
    background: var(--mfc-primary);
    color: var(--mfc-text);
    padding: 3px 10px;
    font-family: var(--mfc-font-title);
    font-size: 0.9rem;
    border-radius: 3px;
    margin-right: 10px;
}

.mfc-cert-badge {
    display: inline-block;
    border: 1px solid var(--mfc-gold);
    color: var(--mfc-gold);
    padding: 3px 10px;
    font-size: 0.8rem;
    border-radius: 3px;
}

/* ========== 内页通用 ========== */
.mfc-page-hero {
    position: relative;
    height: 40vh;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.mfc-page-hero img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.3);
}

.mfc-page-hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.mfc-page-hero-content h1 {
    font-size: 3rem;
    color: var(--mfc-text);
    text-shadow: 0 0 30px rgba(153, 0, 0, 0.8);
}

.mfc-page-hero-content p {
    color: #ccc;
    font-size: 1.1rem;
    margin-top: 10px;
}

/* 文章内容 */
.mfc-article {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 20px;
}

.mfc-article h2 {
    color: var(--mfc-gold);
    font-size: 1.8rem;
    margin: 40px 0 15px;
}

.mfc-article h3 {
    color: var(--mfc-primary);
    font-size: 1.3rem;
    margin: 30px 0 10px;
}

.mfc-article p {
    color: #ccc;
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.mfc-article img {
    width: 100%;
    border: 2px solid var(--mfc-border);
    margin: 20px 0;
}

/* ========== 视频播放器占位 ========== */
.mfc-video-placeholder {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    background: var(--mfc-dark);
    border: 2px solid var(--mfc-border);
    margin: 20px 0;
}

.mfc-video-placeholder .mfc-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: rgba(153, 0, 0, 0.8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mfc-video-placeholder .mfc-play-btn::after {
    content: '';
    border-left: 25px solid var(--mfc-text);
    border-top: 15px solid transparent;
    border-bottom: 15px solid transparent;
    margin-left: 5px;
}

.mfc-video-placeholder .mfc-play-btn:hover {
    background: rgba(212, 175, 55, 0.9);
    transform: translate(-50%, -50%) scale(1.1);
}

/* ========== 面包屑导航 ========== */
.mfc-breadcrumb {
    padding: 15px 20px;
    max-width: 1440px;
    margin: 0 auto;
}

.mfc-breadcrumb a {
    color: #999;
    font-size: 0.9rem;
}

.mfc-breadcrumb span {
    color: #666;
    margin: 0 8px;
}

.mfc-breadcrumb .mfc-current {
    color: var(--mfc-gold);
}

/* ========== 火焰加载动画 ========== */
#mfc-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--mfc-bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease;
}

#mfc-loader.mfc-loaded {
    opacity: 0;
    pointer-events: none;
}

.mfc-fire-loader {
    width: 60px;
    height: 60px;
    border: 4px solid var(--mfc-primary);
    border-top-color: var(--mfc-gold);
    border-radius: 50%;
    animation: mfc-spin 0.8s linear infinite;
}

@keyframes mfc-spin {
    to { transform: rotate(360deg); }
}

/* ========== 响应式 ========== */
/* 360px - 移动端 */
@media (max-width: 480px) {
    .mfc-hero-content h1 {
        font-size: 2rem;
    }
    .mfc-section-title {
        font-size: 1.8rem;
    }
    .mfc-bout-poster {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .mfc-bout-vs {
        font-size: 2rem;
    }
    .mfc-card-grid {
        grid-template-columns: 1fr;
    }
    .mfc-footer-grid {
        grid-template-columns: 1fr;
    }
    .mfc-judge-grid {
        grid-template-columns: 1fr;
    }
    .mfc-judge-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .mfc-page-hero-content h1 {
        font-size: 2rem;
    }
    .mfc-membership-card.mfc-featured {
        transform: none;
    }
}

/* 768px - 平板 */
@media (max-width: 768px) {
    .mfc-nav-links {
        display: none;
    }
    .mfc-hamburger {
        display: flex;
    }
    .mfc-hero-content h1 {
        font-size: 2.5rem;
    }
    .mfc-bout-poster {
        grid-template-columns: 1fr;
    }
    .mfc-app-content {
        flex-direction: column;
        text-align: center;
    }
    .mfc-app-info {
        text-align: center;
    }
    .mfc-app-buttons {
        justify-content: center;
    }
    .mfc-footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* 1024px */
@media (max-width: 1024px) {
    .mfc-nav-links li a {
        padding: 15px 12px;
        font-size: 1rem;
    }
    .mfc-section {
        padding: 60px 20px;
    }
}

/* 1440px+ */
@media (min-width: 1441px) {
    .mfc-section {
        padding: 100px 40px;
    }
}

/* ========== 八角笼网格纹理背景 ========== */
.mfc-cage-bg {
    background-image: 
        linear-gradient(30deg, rgba(153,0,0,0.05) 12%, transparent 12.5%, transparent 87%, rgba(153,0,0,0.05) 87.5%),
        linear-gradient(150deg, rgba(153,0,0,0.05) 12%, transparent 12.5%, transparent 87%, rgba(153,0,0,0.05) 87.5%),
        linear-gradient(30deg, rgba(153,0,0,0.05) 12%, transparent 12.5%, transparent 87%, rgba(153,0,0,0.05) 87.5%),
        linear-gradient(150deg, rgba(153,0,0,0.05) 12%, transparent 12.5%, transparent 87%, rgba(153,0,0,0.05) 87.5%);
    background-size: 40px 70px;
    background-position: 0 0, 0 0, 20px 35px, 20px 35px;
}

/* ========== 金属拉丝质感 ========== */
.mfc-metallic {
    background: linear-gradient(135deg, #2a2a2a 0%, #3a3a3a 25%, #2a2a2a 50%, #3a3a3a 75%, #2a2a2a 100%);
    background-size: 200% 200%;
}

/* ========== 标签/徽章 ========== */
.mfc-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(153, 0, 0, 0.3);
    border: 1px solid var(--mfc-primary);
    color: var(--mfc-primary);
    font-size: 0.8rem;
    font-family: var(--mfc-font-title);
    letter-spacing: 1px;
}

.mfc-tag-gold {
    background: rgba(212, 175, 55, 0.2);
    border-color: var(--mfc-gold);
    color: var(--mfc-gold);
}

/* ========== APP下载页面专用 ========== */
.mfc-app-page-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('../images/app-gym-bg.webp') center/cover no-repeat;
    position: relative;
}

.mfc-app-page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(13, 13, 13, 0.8);
}

.mfc-app-page-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 80px;
    max-width: 1200px;
    padding: 40px;
    flex-wrap: wrap;
    justify-content: center;
}

.mfc-app-page-phone {
    max-width: 320px;
}

.mfc-app-page-phone img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 30px 80px rgba(153, 0, 0, 0.5);
}

.mfc-app-page-info {
    max-width: 550px;
}

.mfc-app-page-info h1 {
    font-size: 3rem;
    color: var(--mfc-text);
    margin-bottom: 20px;
    line-height: 1.2;
}

.mfc-app-page-info .mfc-subtitle {
    font-size: 1.3rem;
    color: var(--mfc-gold);
    margin-bottom: 20px;
}

.mfc-app-page-info p {
    color: #ccc;
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 30px;
}

.mfc-app-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 40px;
}

.mfc-app-feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #ccc;
    font-size: 0.95rem;
}

.mfc-app-feature-item .mfc-check {
    color: var(--mfc-gold);
    font-size: 1.2rem;
}

.mfc-qr-section {
    display: flex;
    gap: 30px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.mfc-qr-item {
    text-align: center;
}

.mfc-qr-item .mfc-qr-placeholder {
    width: 120px;
    height: 120px;
    background: var(--mfc-text);
    border: 3px solid var(--mfc-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mfc-dark);
    font-family: var(--mfc-font-title);
    font-size: 0.8rem;
    margin-bottom: 8px;
}

.mfc-qr-item p {
    color: #999;
    font-size: 0.85rem;
    margin: 0;
}