:root {
    --orange: #F5731A;
    --orange-dark: #D9600E;
    --bg-dark: #0D0D0D;
    --bg-card: #1A1A1A;
    --text-light: #E8E8E8;
    --text-muted: #999;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.7;
}

/* Header */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(13,13,13,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(245,115,26,0.15);
}
.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 72px;
}
.logo img { height: 40px; display: block; }
.main-nav a {
    color: var(--text-light);
    text-decoration: none;
    margin: 0 16px;
    font-size: 15px;
    position: relative;
    padding: 4px 0;
    transition: color .3s;
}
.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -2px; left: 0;
    width: 0; height: 2px;
    background: var(--orange);
    transition: width .3s;
}
.main-nav a:hover { color: var(--orange); }
.main-nav a:hover::after { width: 100%; }

.header-right { display: flex; align-items: center; gap: 12px; position: relative; }
.btn-primary {
    background: var(--orange);
    color: #fff;
    padding: 8px 20px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: background .3s;
}
.btn-primary:hover { background: var(--orange-dark); }
.btn-outline {
    border: 1px solid var(--orange);
    color: var(--orange);
    padding: 7px 18px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
    transition: all .3s;
}
.btn-outline:hover { background: var(--orange); color: #fff; }
.header-qq {
    position: absolute;
    top: 100%; right: 0;
    margin-top: 6px;
    font-size: 12px;
    color: var(--text-muted);
    white-space: nowrap;
}

/* Hero — 固定不轮播 */
.hero-full {
    height: 100vh;
    min-height: 600px;
    background: linear-gradient(135deg, #0D0D0D 0%, #1a0f05 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero-full::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(245,115,26,0.08) 0%, transparent 60%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}
@keyframes heroGlow {
    0% { transform: translate(0,0); }
    100% { transform: translate(3%,3%); }
}
.hero-content {
    position: relative;
    z-index: 1;
    animation: fadeUp 1s ease-out;
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.hero-content h1 {
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 2px;
}
.hero-content h1 span { color: var(--orange); }
.hero-content p {
    font-size: clamp(16px, 2vw, 22px);
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Sections */
.section {
    max-width: 1280px;
    margin: 0 auto;
    padding: 100px 24px;
}
.section-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 48px;
    text-align: center;
    position: relative;
}
.section-title::after {
    content: '';
    display: block;
    width: 60px; height: 3px;
    background: var(--orange);
    margin: 16px auto 0;
    border-radius: 2px;
}
.section-title.left { text-align: left; }
.section-title.left::after { margin: 16px 0 0; }

/* Grid cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 36px 28px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: transform .3s, border-color .3s;
}
.card:hover {
    transform: translateY(-6px);
    border-color: rgba(245,115,26,0.4);
}
.card h3 { color: var(--orange); font-size: 20px; margin-bottom: 12px; }
.card p { color: var(--text-muted); font-size: 15px; }

/* Stats */
.stats-row { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 24px; }
.stat-item { text-align: center; }
.stat-item .num {
    font-size: 48px;
    font-weight: 700;
    color: var(--orange);
    display: block;
}
.stat-item .label { color: var(--text-muted); font-size: 14px; margin-top: 4px; }

/* News */
.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-item {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 28px;
    border-left: 4px solid var(--orange);
    transition: background .3s;
}
.news-item:hover { background: #222; }
.news-item h4 a { color: #fff; text-decoration: none; font-size: 18px; }
.news-item h4 a:hover { color: var(--orange); }
.news-item .meta { color: var(--text-muted); font-size: 13px; margin: 8px 0; }
.news-item .summary { color: #bbb; font-size: 15px; }

/* Article content */
.article-body h2 { color: var(--orange); margin: 32px 0 12px; font-size: 22px; }
.article-body h3 { color: #ddd; margin: 24px 0 10px; font-size: 18px; }
.article-body p { margin-bottom: 16px; color: #ccc; }

/* Footer */
.site-footer {
    position: relative;
    border-top: 1px solid rgba(255,255,255,0.06);
    background: linear-gradient(to bottom, rgba(13,13,13,0.6), #0a0a0a);
    padding: 72px 24px 32px;
    color: #888;
    font-size: 14px;
}
.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
}
.footer-top {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.footer-brand h4 {
    font-size: 22px;
    color: #fff;
    margin-bottom: 10px;
    letter-spacing: 1px;
}
.footer-brand p { color: var(--orange); font-size: 13px; letter-spacing: 3px; }
.footer-col h5 {
    font-size: 13px;
    color: #ddd;
    margin-bottom: 18px;
    letter-spacing: 2px;
    font-weight: 600;
    text-transform: uppercase;
}
.footer-col a {
    display: block;
    color: #777;
    text-decoration: none;
    font-size: 13px;
    padding: 5px 0;
    transition: color .3s, transform .3s;
}
.footer-col a:hover { color: var(--orange); transform: translateX(3px); }
.footer-col p { color: #777; font-size: 13px; padding: 5px 0; }

.footer-reg {
    padding: 28px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.footer-reg p {
    font-size: 12px;
    color: #555;
    line-height: 1.8;
    margin-bottom: 4px;
}
.footer-risk {
    padding: 24px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.footer-risk p {
    font-size: 12px;
    color: #4a4a4a;
    line-height: 1.8;
}
.footer-copy {
    padding-top: 28px;
    text-align: center;
}
.footer-copy p {
    font-size: 12px;
    color: #444;
    line-height: 1.8;
}

/* 右下角隐蔽齿轮图标 */
.admin-gear {
    position: fixed;
    right: 20px;
    bottom: 20px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2a2a2a;
    text-decoration: none;
    z-index: 999;
    transition: color .4s, transform .6s;
    opacity: 0.5;
}
.admin-gear svg { width: 18px; height: 18px; }
.admin-gear:hover {
    color: var(--orange);
    opacity: 1;
    transform: rotate(90deg);
}

/* Footer 响应式 */
@media (max-width: 900px) {
    .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
    .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
    .footer-top { grid-template-columns: 1fr; }
    .site-footer { padding: 48px 20px 80px; }
}

/* Forms */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-size: 14px; color: #ccc; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 12px 16px;
    background: #1e1e1e;
    border: 1px solid #333;
    border-radius: 6px;
    color: #fff;
    font-size: 15px;
    transition: border-color .3s;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--orange); outline: none; }
.form-group textarea { min-height: 200px; resize: vertical; font-family: inherit; }

/* Responsive */
@media (max-width: 900px) {
    .header-inner { flex-wrap: wrap; height: auto; padding: 12px 16px; }
    .main-nav { order: 3; width: 100%; display: flex; justify-content: center; margin-top: 8px; }
    .main-nav a { margin: 0 10px; font-size: 14px; }
    .header-qq { position: static; margin-top: 4px; text-align: center; width: 100%; }
    .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .section { padding: 60px 16px; }
    .hero-full { min-height: 500px; }
}


/* ===== 新版首页样式 ===== */

/* Hero 增强 */
.hero-badge {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--orange);
    border: 1px solid rgba(245,115,26,0.35);
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 28px;
    text-transform: uppercase;
}
.hero-sub {
    font-size: clamp(16px, 1.8vw, 20px) !important;
    color: #888 !important;
    letter-spacing: 4px;
    margin-bottom: 40px !important;
}
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}
.btn-hero {
    background: var(--orange);
    color: #fff;
    padding: 14px 40px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all .3s;
    letter-spacing: 1px;
}
.btn-hero:hover { background: var(--orange-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,115,26,0.3); }
.btn-hero-ghost {
    border: 1px solid rgba(255,255,255,0.2);
    color: #ccc;
    padding: 14px 40px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 16px;
    transition: all .3s;
}
.btn-hero-ghost:hover { border-color: var(--orange); color: var(--orange); }
.hero-scroll-hint {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 11px;
    color: #555;
    letter-spacing: 2px;
    animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
    0%, 100% { opacity: .3; }
    50% { opacity: .8; }
}

/* 数据条 */
.stats-band { padding-top: 80px; padding-bottom: 80px; }
.stats-band-inner {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}
.stat-block { text-align: center; }
.stat-num {
    display: block;
    font-size: clamp(36px, 4vw, 56px);
    font-weight: 800;
    color: #fff;
    line-height: 1;
    letter-spacing: -1px;
}
.stat-num small { font-size: 60%; color: var(--orange); font-weight: 600; }
.stat-label {
    display: block;
    margin-top: 8px;
    font-size: 13px;
    color: #666;
    letter-spacing: 2px;
}
.stat-divider {
    width: 1px;
    height: 48px;
    background: linear-gradient(to bottom, transparent, #333, transparent);
}

/* 品牌宣言 */
.manifesto { max-width: 760px; margin: 0 auto; text-align: center; }
.manifesto-label {
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--orange);
    margin-bottom: 24px;
    text-transform: uppercase;
}
.manifesto-text {
    font-size: clamp(18px, 2.2vw, 26px);
    color: #aaa;
    line-height: 1.9;
    font-weight: 300;
}

/* 产品网格 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}
.product-item {
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 8px;
    padding: 32px 20px;
    text-align: center;
    transition: all .4s;
}
.product-item:hover {
    background: rgba(245,115,26,0.05);
    border-color: rgba(245,115,26,0.3);
    transform: translateY(-4px);
}
.product-icon {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--orange);
    border: 1px solid rgba(245,115,26,0.3);
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 16px;
}
.product-item h3 { font-size: 16px; color: #fff; margin-bottom: 8px; font-weight: 600; }
.product-item p { font-size: 13px; color: #777; line-height: 1.5; }

/* 账户卡片 */
.section-alt {
    background: rgba(255,255,255,0.015);
    border-top: 1px solid rgba(255,255,255,0.04);
    border-bottom: 1px solid rgba(255,255,255,0.04);
    max-width: none;
    padding-left: max(24px, calc((100% - 1280px)/2 + 24px));
    padding-right: max(24px, calc((100% - 1280px)/2 + 24px));
}
.account-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1280px;
    margin: 0 auto;
}
.account-card {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 12px;
    padding: 40px 32px;
    transition: all .4s;
    position: relative;
}
.account-card.featured {
    border-color: var(--orange);
    box-shadow: 0 0 40px rgba(245,115,26,0.08);
}
.account-card:hover { transform: translateY(-4px); }
.account-tier {
    font-size: 11px;
    letter-spacing: 2px;
    color: var(--orange);
    margin-bottom: 12px;
    text-transform: uppercase;
}
.account-card h3 { font-size: 18px; color: #fff; margin-bottom: 16px; }
.account-price { font-size: 32px; font-weight: 800; color: #fff; margin-bottom: 24px; }
.account-price small { font-size: 14px; color: #666; font-weight: 400; }
.account-features { list-style: none; }
.account-features li {
    font-size: 14px;
    color: #888;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.account-features li:last-child { border-bottom: none; }

/* 平台行 */
.platform-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.platform-block {
    padding: 40px 32px;
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 12px;
    background: rgba(255,255,255,0.015);
    transition: all .4s;
}
.platform-block.featured { border-color: rgba(245,115,26,0.3); }
.platform-block:hover { border-color: rgba(245,115,26,0.4); }
.platform-block h3 { font-size: 20px; color: #fff; margin-bottom: 12px; }
.platform-block p { font-size: 14px; color: #888; line-height: 1.7; }
.tag-new {
    font-size: 10px;
    background: var(--orange);
    color: #fff;
    padding: 2px 8px;
    border-radius: 3px;
    vertical-align: middle;
    margin-left: 8px;
    letter-spacing: 1px;
}

/* 新闻列表 — 极简行 */
.news-item {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 28px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    background: transparent;
    border-left: none;
    border-radius: 0;
}
.news-item:hover { background: transparent; }
.news-date {
    font-size: 13px;
    color: #555;
    font-family: 'SF Mono', 'Consolas', monospace;
    white-space: nowrap;
    flex-shrink: 0;
}
.news-body { flex: 1; }
.news-body h4 { margin-bottom: 6px; }
.news-body h4 a { color: #ddd; text-decoration: none; font-size: 17px; font-weight: 500; transition: color .3s; }
.news-body h4 a:hover { color: var(--orange); }
.news-body p { font-size: 14px; color: #777; }
.news-arrow {
    color: #444;
    text-decoration: none;
    font-size: 20px;
    transition: all .3s;
    flex-shrink: 0;
}
.news-item:hover .news-arrow { color: var(--orange); transform: translateX(4px); }
.section-more { text-align: center; margin-top: 40px; }
.section-more a { color: var(--orange); text-decoration: none; font-size: 14px; letter-spacing: 1px; }

/* CTA 底部 */
.cta-section { text-align: center; padding: 120px 24px; }
.cta-section h2 { font-size: clamp(24px, 3vw, 36px); color: #fff; margin-bottom: 40px; font-weight: 600; }
.admin-mini-link {
    color: #444;
    text-decoration: none;
    font-size: 12px;
    letter-spacing: 1px;
    transition: color .3s;
}
.admin-mini-link:hover { color: var(--orange); }

/* 响应式 — 新版首页 */
@media (max-width: 900px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .account-grid { grid-template-columns: 1fr; }
    .platform-row { grid-template-columns: 1fr; }
    .stats-band-inner { gap: 24px; }
    .stat-divider { display: none; }
    .news-item { flex-wrap: wrap; gap: 8px; }
    .news-date { width: 100%; }
    .hero-badge { font-size: 10px; padding: 4px 12px; }
}
@media (max-width: 480px) {
    .product-grid { grid-template-columns: 1fr; }
}
/* 四列账户布局 */
.account-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}
@media (max-width: 1100px) {
    .account-grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .account-grid-4 { grid-template-columns: 1fr; }
}