/* ============================================
   财神烟花 - 全黑高级版 Nike风格
   ============================================ */

/* ==================== 变量 ==================== */
:root {
    /* 颜色 */
    --black: #000000;
    --black-light: #0a0a0a;
    --black-lighter: #111111;
    --gray-900: #171717;
    --gray-800: #1f1f1f;
    --gray-700: #2a2a2a;
    --gray-600: #3a3a3a;
    --gray-500: #555555;
    --gray-400: #777777;
    --gray-300: #999999;
    --gray-200: #bbbbbb;
    --gray-100: #dddddd;
    --white: #ffffff;
    
    /* 更鲜艳的金色 */
    --gold: #e6b93d;
    --gold-light: #ffd54f;
    --gold-dark: #c9a030;
    --gold-glow: rgba(230, 185, 61, 0.6);
    
    /* 字体 */
    --font-main: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Bebas Neue', sans-serif;
    
    /* 动画 */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --duration-fast: 0.15s;
    --duration-normal: 0.3s;
    --duration-slow: 0.5s;
    
    /* 间距 */
    --container-width: 1400px;
    --section-padding: 100px;
    --header-height: 70px;
}

/* ==================== 全页面星空背景 ==================== */
#global-starfield {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

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

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

body {
    font-family: var(--font-main);
    background: var(--black);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

body.no-scroll {
    overflow: hidden;
}

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

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

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

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 5%;
}

/* ==================== 页面加载 ==================== */
#page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--black);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
}

#page-loader.loaded {
    opacity: 0;
    visibility: hidden;
}

.loader-logo {
    width: 150px;
    height: 150px;
    animation: pulse 1.5s ease-in-out infinite;
}

.loader-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(0.95); }
    50% { opacity: 1; transform: scale(1); }
}

/* ==================== 滚动进度条 ==================== */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gold), var(--gold-light));
    width: 0%;
    z-index: 9999;
    transition: width 0.1s;
}

/* ==================== Header ==================== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5%;
    z-index: 1000;
    background: transparent;
    transition: background var(--duration-normal), transform var(--duration-normal);
}

#navbar.scrolled {
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

#navbar.hidden {
    transform: translateY(-100%);
}

#navbar.navbar-solid {
    background: rgba(0, 0, 0, 0.95);
}

/* Logo */
.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: 8px;
    border: 1px solid rgba(230, 185, 61, 0.3);
    transition: all var(--duration-normal);
}

.logo:hover .logo-img {
    box-shadow: 0 0 25px var(--gold-glow);
    border-color: var(--gold);
}

.logo-text-wrap {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
}

.logo-sub {
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    color: var(--gold);
}

/* Nav Links */
.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--white);
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--duration-fast);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: width var(--duration-normal) var(--ease-out);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--gold);
}

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

/* Nav Right */
.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-300);
    border-radius: 50%;
    transition: all var(--duration-fast);
}

.icon-btn:hover {
    color: var(--white);
    background: var(--gray-800);
}

/* Language Selector */
.lang-selector {
    position: relative;
}

.current-lang-btn {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
    color: var(--gray-300);
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid var(--gray-700);
    transition: all var(--duration-fast);
}

.current-lang-btn:hover {
    color: var(--white);
    border-color: var(--gray-500);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 120px;
    background: var(--gray-900);
    border: 1px solid var(--gray-700);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--duration-normal) var(--ease-out);
}

.lang-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.8125rem;
    color: var(--gray-400);
    transition: all var(--duration-fast);
}

.lang-option:hover {
    color: var(--white);
    background: var(--gray-800);
}

.lang-option.active {
    color: var(--gold);
}

/* Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 10px;
}

.menu-toggle .bar {
    width: 100%;
    height: 2px;
    background: var(--white);
    transition: all var(--duration-normal) var(--ease-out);
}

.menu-toggle.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ==================== Mobile Nav ==================== */
.mobile-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 70px; /* 给底部导航留空间 */
    background: var(--black);
    z-index: 999;
    padding: 2rem 5%;
    padding-bottom: 2rem;
    display: flex;
    flex-direction: column;
    transform: translateX(-100%);
    transition: transform var(--duration-slow) var(--ease-out);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch; /* iOS平滑滚动 */
}

.mobile-nav.open {
    transform: translateX(0);
}

.mobile-nav-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--gray-800);
    margin-bottom: 2rem;
}

.mobile-nav-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
    border-radius: 6px;
}

.mobile-nav-brand {
    display: flex;
    flex-direction: column;
}

.mobile-nav-brand .brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
}

.mobile-nav-brand .brand-sub {
    font-size: 0.75rem;
    color: var(--gold);
    letter-spacing: 1px;
}

.mobile-nav-header span {
    font-size: 1.25rem;
    font-weight: 700;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
}

.mobile-nav-links a {
    padding: 1rem 0;
    font-size: 1.125rem;
    color: var(--white);
    border-bottom: 1px solid var(--gray-900);
    transition: color var(--duration-fast);
}

.mobile-nav-links a:hover,
.mobile-nav-links a.active {
    color: var(--gold);
}

.mobile-nav-lang {
    margin-top: auto;
    padding-top: 2rem;
    display: flex;
    gap: 1rem;
}

.mobile-nav-lang button {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    color: var(--gray-300);
    border: 1px solid var(--gray-700);
    transition: all var(--duration-fast);
}

.mobile-nav-lang button.active,
.mobile-nav-lang button:hover {
    color: var(--gold);
    border-color: var(--gold);
}

/* ==================== Search Overlay ==================== */
#search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.98);
    z-index: 2000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-slow);
}

#search-overlay.open {
    opacity: 1;
    visibility: visible;
}

.search-close {
    position: absolute;
    top: 2rem;
    right: 5%;
    width: 50px;
    height: 50px;
    font-size: 2rem;
    color: var(--gray-400);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-fast);
}

.search-close:hover {
    color: var(--white);
    transform: rotate(90deg);
}

.search-content {
    width: 90%;
    max-width: 600px;
    text-align: center;
}

.search-content h2 {
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.3em;
    color: var(--gray-500);
    margin-bottom: 2rem;
    text-transform: uppercase;
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--gray-700);
    transition: border-color var(--duration-fast);
}

.search-input-wrapper:focus-within {
    border-color: var(--gold);
}

#search-input {
    flex: 1;
    background: none;
    border: none;
    padding: 1rem 0;
    font-size: 1.5rem;
    color: var(--white);
    outline: none;
}

#search-input::placeholder {
    color: var(--gray-600);
}

.search-submit-btn {
    color: var(--gray-500);
    padding: 0.5rem;
    transition: color var(--duration-fast);
}

.search-submit-btn:hover {
    color: var(--white);
}

.search-tags {
    margin-top: 2rem;
    font-size: 0.875rem;
    color: var(--gray-600);
}

.search-tags a {
    display: inline-block;
    margin: 0.5rem;
    padding: 0.5rem 1rem;
    color: var(--gray-400);
    border: 1px solid var(--gray-700);
    border-radius: 20px;
    transition: all var(--duration-fast);
}

.search-tags a:hover {
    color: var(--white);
    border-color: var(--white);
}

/* ==================== Hero ==================== */
#hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: transparent;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(0,0,0,0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 0 5%;
}

/* Glow Effect */
.glow-effect {
    animation: glow 3s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { filter: drop-shadow(0 0 10px var(--gold-glow)); }
    50% { filter: drop-shadow(0 0 30px var(--gold-glow)); }
}

.hero-logo {
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 1s var(--ease-out) 0.2s forwards, glow 3s ease-in-out 1.2s infinite;
}

.hero-logo img {
    width: 200px;
    height: 200px;
    object-fit: contain;
    border-radius: 16px;
    margin: 0 auto;
    border: 2px solid rgba(230, 185, 61, 0.4);
}

.hero-title {
    overflow: hidden;
    opacity: 0;
    animation: fadeInUp 1s var(--ease-out) 0.4s forwards;
}

/* Gradient Text */
.gradient-text {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, var(--white) 0%, var(--gold) 50%, var(--gold-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.8)) drop-shadow(0 4px 8px rgba(0, 0, 0, 0.6));
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: clamp(0.875rem, 2vw, 1.25rem);
    letter-spacing: 0.5em;
    color: var(--white);
    margin-top: 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 0, 0, 0.6);
    opacity: 0;
    animation: fadeInUp 1s var(--ease-out) 0.6s forwards;
}

.hero-company {
    font-size: clamp(0.75rem, 1.5vw, 0.875rem);
    color: var(--gold);
    margin-top: 0.5rem;
    letter-spacing: 0.2em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8), 0 0 15px rgba(230, 185, 61, 0.3);
    opacity: 0;
    animation: fadeInUp 1s var(--ease-out) 0.8s forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 探索按钮 - 内联版本 */
.scroll-hint-inline {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--white);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8);
    margin-top: 2rem;
    opacity: 0;
    animation: fadeIn 1s var(--ease-out) 1s forwards;
}

.scroll-hint-inline svg {
    animation: bounce 2s infinite;
}

.scroll-hint {
    position: absolute;
    bottom: 5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--white);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8);
    opacity: 0;
    animation: fadeIn 1s var(--ease-out) 1s forwards;
}

.scroll-hint svg {
    animation: bounce 2s infinite;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(8px); }
    60% { transform: translateY(4px); }
}

/* ==================== Categories ==================== */
#categories {
    padding: var(--section-padding) 0;
    background: var(--black);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.section-header p {
    color: var(--gray-500);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.category-card {
    position: relative;
    height: 450px;
    border-radius: 8px;
    overflow: hidden;
    display: block;
}

.card-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7);
    transition: all var(--duration-slow) var(--ease-out);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.3) 50%, transparent 100%);
    z-index: 1;
}

.card-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2rem;
    z-index: 2;
}

.card-subtitle {
    font-family: var(--font-display);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--gold);
    display: block;
    margin-bottom: 0.25rem;
}

.card-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.card-desc {
    font-size: 0.875rem;
    color: var(--gray-400);
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--duration-normal) var(--ease-out);
}

.card-link {
    display: inline-block;
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--white);
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--duration-normal) var(--ease-out) 0.05s;
}

/* Card Glow Effect */
.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 8px;
    opacity: 0;
    transition: opacity var(--duration-normal);
    pointer-events: none;
    z-index: 3;
    box-shadow: inset 0 0 0 1px rgba(230, 185, 61, 0.2);
}

.category-card:hover .card-image img {
    filter: brightness(0.9);
    transform: scale(1.05);
}

.category-card:hover .card-desc,
.category-card:hover .card-link {
    opacity: 1;
    transform: translateY(0);
}

.category-card:hover .card-glow {
    opacity: 1;
    box-shadow: inset 0 0 0 2px var(--gold),
                0 0 40px var(--gold-glow);
}

/* Language Globe Icon */
.globe-icon {
    margin-right: 0.25rem;
    opacity: 0.7;
    transition: all var(--duration-fast);
}

.current-lang-btn:hover .globe-icon {
    opacity: 1;
}

/* ==================== Promises ==================== */
#promises {
    padding: 80px 0;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(5px);
    position: relative;
}

.promises-grid {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4rem;
}

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

.promise-icon {
    color: var(--gold);
    margin-bottom: 1rem;
    transition: all var(--duration-normal) var(--ease-out);
}

.promise-icon:hover {
    transform: scale(1.15);
    filter: drop-shadow(0 0 15px rgba(212, 175, 55, 0.6));
}

.promise-number {
    font-family: var(--font-display);
    font-size: 3rem;
    line-height: 1;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--white) 0%, var(--gold-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.promise-label {
    font-size: 0.875rem;
    color: var(--gray-400);
}

.promise-divider {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, transparent, var(--gray-700), transparent);
}

/* ==================== Footer ==================== */
footer {
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(8px);
    padding-top: 80px;
    padding-bottom: 100px;
    position: relative;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    width: 70px;
    height: 70px;
    margin-bottom: 1rem;
}

.footer-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 10px;
    border: 1px solid rgba(230, 185, 61, 0.3);
    transition: all var(--duration-normal);
}

.footer-logo:hover img {
    box-shadow: 0 0 25px var(--gold-glow);
    border-color: var(--gold);
}

.footer-brand h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--gold);
}

.footer-brand p {
    font-size: 0.8rem;
    color: var(--gray-300);
}

.footer-links h4,
.footer-lang h4 {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--gold);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.footer-links a {
    display: block;
    font-size: 0.875rem;
    color: var(--gray-300);
    padding: 0.4rem 0;
    position: relative;
    transition: all var(--duration-fast);
}

.footer-links a:hover {
    color: var(--gold);
    padding-left: 5px;
}

.footer-lang-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer-lang-btns button {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    color: var(--gray-500);
    border: 1px solid var(--gray-800);
    border-radius: 4px;
    transition: all var(--duration-fast);
}

.footer-lang-btns button .lang-icon {
    opacity: 0.6;
    transition: opacity var(--duration-fast);
}

.footer-lang-btns button:hover {
    color: var(--white);
    border-color: var(--gray-600);
}

.footer-lang-btns button:hover .lang-icon {
    opacity: 1;
}

.footer-lang-btns button.active {
    color: var(--black);
    background: var(--white);
    border-color: var(--white);
}

.footer-lang-btns button.active .lang-icon {
    opacity: 1;
}

.footer-divider {
    height: 1px;
    background: linear-gradient(to right, transparent, var(--gold), transparent);
    margin: 3rem 0;
    opacity: 0.4;
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--gray-400);
}

/* ==================== Back to Top ==================== */
#back-to-top {
    position: fixed;
    bottom: 100px;
    right: 20px;
    width: 45px;
    height: 45px;
    background: var(--gray-900);
    border: 1px solid var(--gray-700);
    border-radius: 50%;
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--duration-normal);
    z-index: 900;
}

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

#back-to-top:hover {
    background: var(--gray-800);
    border-color: var(--gray-600);
}

/* ==================== Partner Float Button ==================== */
.partner-float-btn {
    position: fixed;
    bottom: 30px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.5rem;
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 50%, var(--gold-dark) 100%);
    color: var(--black);
    font-size: 0.9rem;
    font-weight: 700;
    border-radius: 50px;
    box-shadow: 0 4px 25px var(--gold-glow),
                0 0 0 0 var(--gold-glow);
    transition: all var(--duration-normal);
    z-index: 901;
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 4px 25px var(--gold-glow), 0 0 0 0 var(--gold-glow); }
    50% { box-shadow: 0 4px 30px var(--gold-glow), 0 0 0 8px rgba(230, 185, 61, 0.1); }
}

.partner-float-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 35px var(--gold-glow);
    animation: none;
}

.partner-float-btn svg {
    flex-shrink: 0;
}

/* ==================== Mobile Bottom Nav ==================== */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--black);
    border-top: 1px solid var(--gray-900);
    display: none;
    grid-template-columns: repeat(3, 1fr);
    z-index: 1000;
    padding-bottom: env(safe-area-inset-bottom);
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 0.5rem;
    color: var(--gray-400);
    font-size: 0.7rem;
    gap: 0.25rem;
    transition: color var(--duration-fast);
}

.bottom-nav-item svg {
    width: 22px;
    height: 22px;
}

.bottom-nav-item.active,
.bottom-nav-item:hover {
    color: var(--gold);
}

/* ==================== Product Page ==================== */
.product-page main {
    padding-top: calc(var(--header-height) + 2rem);
    min-height: 100vh;
}

#product-section {
    padding-bottom: 100px;
}

.product-header {
    margin-bottom: 2rem;
}

.product-header h1 {
    font-size: 2rem;
    font-weight: 700;
}

/* Filter Bar */
.filter-wrapper {
    margin-bottom: 1.5rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    position: relative;
    z-index: 10;
    /* 淡出效果 */
    mask-image: linear-gradient(to right, black 90%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, black 90%, transparent 100%);
}

.filter-wrapper::-webkit-scrollbar {
    display: none;
}

.filter-bar {
    display: flex;
    gap: 0.75rem;
    padding-bottom: 0.5rem;
    padding-right: 2rem; /* 为淡出留空间 */
}

.filter-btn {
    padding: 0.85rem 1.6rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-200);
    background: rgba(0, 0, 0, 0.85);
    border: 1.5px solid var(--gray-500);
    border-radius: 30px;
    white-space: nowrap;
    transition: all var(--duration-fast);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--white);
    transition: left var(--duration-normal) var(--ease-out);
    z-index: -1;
}

.filter-btn:hover {
    color: var(--gold);
    border-color: var(--gold);
    background: rgba(230, 185, 61, 0.1);
    transform: translateY(-2px);
}

.filter-btn.active {
    color: var(--black);
    border-color: var(--gold);
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 100%);
    font-weight: 700;
    box-shadow: 0 0 25px var(--gold-glow), 0 4px 15px rgba(230, 185, 61, 0.3);
    text-shadow: none;
}

/* 排序 */
.sort-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--gray-900);
}

.sort-wrapper label {
    font-size: 0.875rem;
    color: var(--gray-400);
}

.sort-select {
    background: var(--gray-900);
    border: 1px solid var(--gray-700);
    border-radius: 8px;
    padding: 0.5rem 2rem 0.5rem 1rem;
    font-size: 0.875rem;
    color: var(--white);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    transition: all var(--duration-fast);
}

.sort-select:hover,
.sort-select:focus {
    border-color: var(--gold);
    outline: none;
}

/* Sub Filter */
.sub-filter-wrapper {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--gray-900);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    mask-image: linear-gradient(to right, black 90%, transparent 100%);
    -webkit-mask-image: linear-gradient(to right, black 90%, transparent 100%);
}

.sub-filter-bar {
    display: flex;
    gap: 0.5rem;
    padding-right: 2rem;
}

.sub-filter-btn {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    flex-shrink: 0;
    color: var(--gray-500);
    background: var(--gray-900);
    border-radius: 20px;
    white-space: nowrap;
    transition: all var(--duration-fast);
}

.sub-filter-btn:hover {
    color: var(--white);
    background: var(--gray-800);
}

.sub-filter-btn.active {
    color: var(--black);
    background: var(--gold);
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.product-card {
    background: var(--gray-900);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    border: 1px solid var(--gray-800);
    position: relative;
}

/* 微光边框效果 */
.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(230, 185, 61, 0.15), transparent);
    transition: left 0.6s ease;
    z-index: 10;
    pointer-events: none;
}

.product-card:hover::before {
    left: 100%;
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: rgba(230, 185, 61, 0.5);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3),
                0 0 20px rgba(230, 185, 61, 0.15),
                inset 0 0 20px rgba(230, 185, 61, 0.03);
}

.product-card-image {
    position: relative;
    aspect-ratio: 1;
    background: linear-gradient(145deg, var(--gray-900) 0%, var(--black) 100%);
    overflow: hidden;
}

/* 新品角标 */
.new-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: linear-gradient(135deg, var(--gold) 0%, #d4a636 100%);
    color: var(--black);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    z-index: 5;
    box-shadow: 0 2px 8px rgba(230, 185, 61, 0.4);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.video-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.7);
    color: var(--white);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
    backdrop-filter: blur(4px);
}

.video-badge svg {
    margin-left: 2px;
}

.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 1rem;
    filter: brightness(0.95);
    transition: all var(--duration-slow) var(--ease-out);
}

.product-card-image.no-image {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--black) 100%);
}

.video-only-placeholder,
.no-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--gray-900);
}

.no-image-placeholder .placeholder-icon {
    font-size: 2.5rem;
    opacity: 0.5;
}

.no-image-placeholder .placeholder-text {
    font-size: 0.85rem;
    color: var(--gray-400);
    opacity: 0.7;
}

.video-only-placeholder svg {
    opacity: 0.8;
    transition: all var(--duration-fast);
    color: var(--gold);
}

.video-only-placeholder span {
    font-size: 0.875rem;
    opacity: 0.7;
    color: var(--gold);
}

.product-card:hover .video-only-placeholder svg {
    opacity: 1;
    transform: scale(1.1);
}

.product-card:hover .product-card-image img {
    filter: brightness(1.1);
    transform: scale(1.08);
}

.product-card-info {
    padding: 1.25rem;
}

.product-card-info h3 {
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 0.25rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card-id {
    font-size: 0.75rem;
    color: var(--gray-600);
}

.no-products {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem;
    color: var(--gray-500);
}

/* ==================== Product Modal ==================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal.open {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    animation: fadeIn var(--duration-normal) forwards;
}

.modal-container {
    position: relative;
    width: 90%;
    max-width: 1000px;
    max-height: 90vh;
    background: var(--gray-900);
    border: 1px solid var(--gray-800);
    border-radius: 12px;
    overflow: hidden;
    animation: slideUp var(--duration-slow) var(--ease-out) forwards;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    background: var(--black);
    border: 1px solid var(--gray-700);
    border-radius: 50%;
    color: var(--white);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all var(--duration-fast);
}

.modal-close:hover {
    background: var(--gray-800);
    border-color: var(--gray-600);
}

.modal-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-height: 90vh;
}

.modal-gallery {
    background: var(--black);
    padding: 2rem;
    display: flex;
    flex-direction: column;
}

.modal-video-preview {
    background: var(--black);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.modal-video-preview video {
    width: 100%;
    max-height: 400px;
    border-radius: 8px;
    background: var(--black);
}

.modal-video-preview .video-tip {
    margin-top: 1rem;
}

.gallery-main {
    position: relative;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.gallery-main img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

.gallery-prev,
.gallery-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: var(--gray-900);
    border: 1px solid var(--gray-700);
    border-radius: 50%;
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-fast);
}

.gallery-prev { left: 0; }
.gallery-next { right: 0; }

.gallery-prev:hover,
.gallery-next:hover {
    background: var(--white);
    color: var(--black);
}

.gallery-thumbs {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1rem;
    padding-top: 1rem;
}

/* 无图片提示条 */
.no-media-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: rgba(230, 185, 61, 0.1);
    border: 1px solid rgba(230, 185, 61, 0.3);
    border-radius: 6px;
    margin-bottom: 0.8rem;
    color: var(--gold);
    font-size: 0.85rem;
}

.no-media-placeholder .placeholder-icon {
    font-size: 1rem;
}

.no-media-placeholder .placeholder-text {
    font-size: 0.85rem;
}

/* 无视频提示条 */
.no-video-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: rgba(230, 185, 61, 0.1);
    border: 1px solid rgba(230, 185, 61, 0.3);
    border-radius: 6px;
    margin-top: 0.8rem;
    color: var(--gold);
    font-size: 0.85rem;
}

.thumb-item {
    width: 60px;
    height: 60px;
    border: 2px solid transparent;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    opacity: 0.5;
    transition: all var(--duration-fast);
}

.thumb-item:hover,
.thumb-item.active {
    opacity: 1;
    border-color: var(--gold);
}

.thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-info {
    padding: 3rem;
    overflow-y: auto;
}

.modal-id {
    font-size: 0.75rem;
    color: var(--gold);
    letter-spacing: 0.1em;
}

.modal-name {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.4;
    margin-top: 0.5rem;
}

.modal-divider {
    width: 40px;
    height: 1px;
    background: var(--gray-700);
    margin: 1.5rem 0;
}

.modal-desc {
    color: var(--gray-400);
    line-height: 1.8;
}

.modal-actions {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-video {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: transparent;
    border: 1px solid var(--gold);
    border-radius: 30px;
    color: var(--gold);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--duration-fast);
}

.btn-video:hover {
    background: var(--gold);
    color: var(--black);
}

/* 分享按钮 */
.share-wrapper {
    position: relative;
}

.btn-share {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--gray-400);
    border-radius: 30px;
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--duration-fast);
}

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

.share-menu {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: rgba(20, 20, 20, 0.98);
    border: 1px solid var(--gray-600);
    border-radius: 16px;
    padding: 1.5rem;
    min-width: 280px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 10000;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
}

.share-menu.open {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

/* 背景遮罩 */
.share-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 9999;
}

.share-overlay.open {
    opacity: 1;
    visibility: visible;
}

.share-menu-title {
    text-align: center;
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-700);
}

.share-divider {
    height: 1px;
    background: var(--gray-700);
    margin: 0.5rem 0;
}

.share-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--white);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
}

.share-item:hover {
    background: var(--gray-800);
}

.share-item svg {
    flex-shrink: 0;
}

/* 各平台颜色 */
.share-item.whatsapp svg { color: #25D366; }
.share-item.whatsapp:hover { background: rgba(37, 211, 102, 0.15); }

.share-item.telegram svg { color: #0088cc; }
.share-item.telegram:hover { background: rgba(0, 136, 204, 0.15); }

.share-item.facebook svg { color: #1877F2; }
.share-item.facebook:hover { background: rgba(24, 119, 242, 0.15); }

.share-item.copy svg { color: var(--gold); }
.share-item.copy:hover { background: rgba(230, 185, 61, 0.15); }

/* 复制成功提示 */
.copy-toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--gold);
    color: var(--black);
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    font-size: 0.875rem;
    font-weight: 600;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 10001;
}

.copy-toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* ==================== Responsive ==================== */
@media (max-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    .category-grid {
        gap: 1rem;
    }
    
    .category-card {
        height: 400px;
    }
    
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-main {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
    }
    
    .modal-body {
        grid-template-columns: 1fr;
    }
    
    .modal-gallery {
        max-height: 50vh;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
        --header-height: 60px;
    }
    
    .nav-links {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .mobile-bottom-nav {
        display: grid;
    }
    
    footer,
    main {
        padding-bottom: 80px;
    }
    
    #back-to-top {
        bottom: 150px;
        right: 15px;
    }
    
    .partner-float-btn {
        bottom: 90px;
        right: 12px;
        padding: 0.65rem 1rem;
        font-size: 0.8rem;
    }
    
    /* 手机端Logo更大 */
    .logo-img {
        width: 52px;
        height: 52px;
    }
    
    .logo-text {
        font-size: 1.25rem;
    }
    
    .logo-sub {
        font-size: 0.55rem;
    }
    
    .hero-logo img {
        width: 200px;
        height: 200px;
    }
    
    .footer-logo {
        width: 70px;
        height: 70px;
    }
    
    .category-grid {
        grid-template-columns: 1fr;
    }
    
    .category-card {
        height: 300px;
    }
    
    .promises-grid {
        flex-direction: column;
        gap: 2rem;
    }
    
    .promise-divider {
        width: 60px;
        height: 1px;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .footer-brand {
        align-items: center;
    }
    
    .footer-lang-btns {
        justify-content: center;
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .product-card-info {
        padding: 1rem;
    }
    
    .product-card-info h3 {
        font-size: 0.8125rem;
    }
    
    /* 手机端分类按钮优化 */
    .filter-btn {
        padding: 0.9rem 1.4rem;
        font-size: 0.9rem;
        font-weight: 600;
    }
    
    .modal-container {
        width: 100%;
        max-height: 100vh;
        border-radius: 12px 12px 0 0;
        margin-top: auto;
    }
    
    .modal-body {
        grid-template-columns: 1fr;
        max-height: calc(100vh - 60px);
        overflow-y: auto;
    }
    
    .modal-gallery {
        max-height: 45vh;
        padding: 1rem;
    }
    
    .gallery-main {
        min-height: 200px;
    }
    
    .gallery-main img {
        max-height: 250px;
    }
    
    .gallery-thumbs {
        margin-top: 0.5rem;
        padding-top: 0.5rem;
    }
    
    .thumb-item {
        width: 50px;
        height: 50px;
    }
    
    .modal-info {
        padding: 1.5rem;
        max-height: 50vh;
        overflow-y: auto;
    }
    
    .modal-close {
        top: 0.5rem;
        right: 0.5rem;
        width: 36px;
        height: 36px;
    }
}

@media (max-width: 480px) {
    .logo-sub {
        font-size: 0.5rem;
    }
    
    .logo-img {
        width: 46px;
        height: 46px;
    }
    
    .hero-logo img {
        width: 200px;
        height: 200px;
    }
    
    .gradient-text {
        font-size: 2rem;
    }
    
    .category-card {
        height: 260px;
    }
    
    .card-content h3 {
        font-size: 1.25rem;
    }
    
    .promise-number {
        font-size: 2.5rem;
    }
    
    .product-header h1 {
        font-size: 1.5rem;
    }
    
    /* 小手机分类按钮 */
    .filter-btn {
        padding: 0.75rem 1.1rem;
        font-size: 0.85rem;
        font-weight: 600;
    }
}

/* ==================== 关于页面样式 ==================== */
.about-page {
    padding-top: var(--header-height);
}

/* About Hero */
.about-hero {
    padding: 80px 0 60px;
    text-align: center;
    position: relative;
}

.about-hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}

.about-logo-wrapper {
    display: flex;
    justify-content: center;
}

.about-hero-text {
    text-align: center;
}

.about-logo {
    width: 200px;
    height: 200px;
    object-fit: contain;
    border-radius: 20px;
    border: 2px solid rgba(230, 185, 61, 0.4);
    animation: glow 3s ease-in-out infinite;
}

.about-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    background: linear-gradient(135deg, var(--white) 0%, var(--gold) 50%, var(--gold-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.about-subtitle {
    font-family: var(--font-display);
    font-size: clamp(0.75rem, 2vw, 1rem);
    letter-spacing: 0.3em;
    color: var(--gold);
}

/* About Intro */
.about-intro {
    padding: 60px 0;
    background: rgba(10, 10, 10, 0.7);
    backdrop-filter: blur(10px);
}

.about-intro .section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.about-intro .section-header h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--gold);
}

.section-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--gold), var(--gold-light));
    margin: 1rem auto 0;
    border-radius: 2px;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text {
    font-size: clamp(1rem, 2vw, 1.2rem);
    line-height: 2;
    color: var(--white);
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--ease-out);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    font-weight: 400;
}

.about-text.visible {
    opacity: 1;
    transform: translateY(0);
}

/* About Stats */
.about-stats {
    padding: 80px 0;
    background: rgba(0, 0, 0, 0.5);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 2rem 1rem;
    background: rgba(20, 20, 20, 0.8);
    border-radius: 16px;
    border: 1px solid var(--gray-800);
    transition: all var(--duration-normal);
    opacity: 0;
    transform: translateY(30px);
}

.stat-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.stat-item:hover {
    border-color: var(--gold);
    box-shadow: 0 0 30px var(--gold-glow);
    transform: translateY(-5px);
}

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--gold);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-400);
    letter-spacing: 0.1em;
}

/* About Values */
.about-values {
    padding: 80px 0;
    background: rgba(10, 10, 10, 0.7);
    backdrop-filter: blur(10px);
}

.about-values .section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.about-values .section-header h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--gold);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
}

.value-item {
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: rgba(20, 20, 20, 0.6);
    border-radius: 16px;
    border: 1px solid var(--gray-800);
    transition: all var(--duration-normal);
    opacity: 0;
    transform: translateY(30px);
}

.value-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.value-item:hover {
    border-color: var(--gold);
    background: rgba(30, 30, 30, 0.8);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.value-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(230, 185, 61, 0.2), rgba(230, 185, 61, 0.05));
    border-radius: 50%;
    color: var(--gold);
    transition: all var(--duration-normal);
}

.value-item:hover .value-icon {
    background: linear-gradient(135deg, var(--gold), var(--gold-dark));
    color: var(--black);
    transform: scale(1.1);
}

.value-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.value-item p {
    font-size: 0.875rem;
    color: var(--gray-400);
    line-height: 1.6;
}

/* 关于页面响应式 */
@media (max-width: 1024px) {
    .values-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .about-hero {
        padding: 60px 0 40px;
    }
    
    .about-logo {
        width: 160px;
        height: 160px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .value-item {
        padding: 2rem 1rem;
    }
}

@media (max-width: 480px) {
    .about-logo {
        width: 140px;
        height: 140px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .stat-item {
        padding: 1.5rem 0.75rem;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .value-item {
        padding: 2rem;
    }
}


/* ==================== 视频弹窗 ==================== */
.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.video-modal.open {
    opacity: 1;
    visibility: visible;
}

.video-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
}

.video-modal-container {
    position: relative;
    width: 90%;
    max-width: 900px;
    max-height: 80vh;
    z-index: 1;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.video-modal.open .video-modal-container {
    transform: scale(1);
}

.video-modal-close {
    position: absolute;
    top: -50px;
    right: 0;
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border: 1px solid var(--gray-600);
    border-radius: 50%;
    color: var(--white);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 10;
}

.video-modal-close:hover {
    background: var(--gold);
    color: var(--black);
    border-color: var(--gold);
}

#video-player {
    width: 100%;
    max-height: 80vh;
    border-radius: 12px;
    background: var(--black);
}

.video-tip {
    text-align: center;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 0.75rem;
    padding: 0;
}

@media (max-width: 768px) {
    .video-modal-container {
        width: 95%;
    }
    
    .video-modal-close {
        top: -45px;
        width: 36px;
        height: 36px;
        font-size: 1.25rem;
    }
    
    .sort-wrapper {
        flex-wrap: wrap;
    }
    
    .sort-select {
        flex: 1;
        min-width: 150px;
    }
}

/* ==================== Q&A 帮助气泡 ==================== */
.qa-bubble {
    position: fixed;
    bottom: 100px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: rgba(20, 20, 20, 0.9);
    border: 2px solid var(--gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: bold;
    font-family: Georgia, serif;
    cursor: pointer;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
    color: var(--gold);
}

.qa-bubble:hover {
    transform: scale(1.1);
    background: rgba(230, 185, 61, 0.15);
    box-shadow: 0 6px 20px rgba(230, 185, 61, 0.3);
}

.qa-panel {
    position: fixed;
    bottom: 160px;
    right: 20px;
    width: 300px;
    background: rgba(20, 20, 20, 0.98);
    border: 1px solid var(--gray-800);
    border-radius: 12px;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.qa-panel.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.qa-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--gray-800);
}

.qa-header span {
    font-weight: 600;
    color: var(--gold);
}

.qa-close {
    background: transparent;
    border: none;
    color: var(--gray-500);
    font-size: 1.25rem;
    cursor: pointer;
    transition: color 0.2s;
}

.qa-close:hover {
    color: var(--white);
}

.qa-content {
    padding: 0.5rem 0;
}

.qa-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.875rem 1.25rem;
    cursor: pointer;
    transition: background 0.2s;
}

.qa-item:hover {
    background: rgba(230, 185, 61, 0.1);
}

.qa-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.qa-text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.qa-text strong {
    font-size: 0.875rem;
    color: var(--white);
    font-weight: 500;
}

.qa-text span {
    font-size: 0.75rem;
    color: var(--gray-400);
}

@media (max-width: 768px) {
    .qa-bubble {
        bottom: 80px;
        right: 15px;
        width: 45px;
        height: 45px;
        font-size: 1.25rem;
    }
    
    .qa-panel {
        bottom: 135px;
        right: 15px;
        width: calc(100vw - 30px);
        max-width: 320px;
    }
}

/* ==================== 清除缓存弹窗 ==================== */
.cache-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.cache-modal.open {
    opacity: 1;
    visibility: visible;
}

.cache-modal-content {
    background: #0a0a0a;
    border: 1px solid var(--gold);
    border-radius: 16px;
    width: 90%;
    max-width: 420px;
    overflow: hidden;
    transform: translateY(20px);
    transition: transform 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 30px rgba(230, 185, 61, 0.1);
}

.cache-modal.open .cache-modal-content {
    transform: translateY(0);
}

.cache-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid rgba(230, 185, 61, 0.3);
    background: rgba(230, 185, 61, 0.05);
}

.cache-modal-header span {
    font-weight: 600;
    color: var(--gold);
    font-size: 1.1rem;
}

.cache-modal-close {
    background: transparent;
    border: none;
    color: var(--gray-400);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.2s;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

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

.cache-modal-body {
    padding: 1.5rem;
}

.cache-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.cache-item:last-child {
    margin-bottom: 0;
}

.cache-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(230, 185, 61, 0.1);
    border-radius: 10px;
    flex-shrink: 0;
}

.cache-icon svg {
    width: 22px;
    height: 22px;
    stroke: var(--gold);
}

.cache-text {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.cache-text strong {
    font-size: 0.95rem;
    color: var(--white);
    font-weight: 600;
}

.cache-text span {
    font-size: 0.85rem;
    color: var(--gray-300);
    line-height: 1.5;
}

.cache-modal-btn {
    width: calc(100% - 3rem);
    margin: 0 1.5rem 1.5rem;
    padding: 1rem;
    background: var(--gold);
    color: var(--black);
    border: none;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border-radius: 10px;
}

.cache-modal-btn:hover {
    background: var(--gold-light);
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(230, 185, 61, 0.3);
}

/* ==================== 全屏图片查看器 ==================== */
.image-viewer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
}

.image-viewer.open {
    display: flex;
}

.viewer-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
}

.viewer-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 28px;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.viewer-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.viewer-counter {
    position: absolute;
    top: 20px;
    left: 20px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    z-index: 10;
}

.viewer-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    touch-action: none;
}

.viewer-container img {
    max-width: 90%;
    max-height: 85%;
    object-fit: contain;
    transition: transform 0.1s ease-out;
    user-select: none;
    -webkit-user-drag: none;
}

.viewer-prev,
.viewer-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.viewer-prev:hover,
.viewer-next:hover {
    background: rgba(255, 255, 255, 0.2);
}

.viewer-prev { left: 15px; }
.viewer-next { right: 15px; }

.viewer-prev.hidden,
.viewer-next.hidden {
    display: none;
}

.viewer-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.viewer-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.2s;
}

.viewer-dot.active {
    background: var(--gold);
    transform: scale(1.2);
}

.viewer-hint {
    position: absolute;
    bottom: 70px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.8rem;
    z-index: 10;
    opacity: 1;
    transition: opacity 0.3s;
}

.viewer-hint.hidden {
    opacity: 0;
}

/* 移动端调整 */
@media (max-width: 768px) {
    .viewer-prev,
    .viewer-next {
        width: 40px;
        height: 40px;
    }
    
    .viewer-prev { left: 10px; }
    .viewer-next { right: 10px; }
    
    .viewer-container img {
        max-width: 100%;
        max-height: 80%;
    }
}