/* ===== 黑料每日比赛 - 黑红竞技对战主题 ===== */
:root {
    --arena-black: #0A0A0A;
    --arena-dark: #141414;
    --arena-gray: #1E1E1E;
    --arena-line: #2A2A2A;
    --blood-red: #DC143C;
    --flame-red: #FF2A2A;
    --crimson: #B22222;
    --neon-yellow: #E5FF3A;
    --neon-cyan: #00F0FF;
    --gold: #FFD700;
    --silver: #C0C0C0;
    --text-white: #FFFFFF;
    --text-gray: #B0B0B0;
    --text-dim: #666666;
    --red-glow: rgba(255, 42, 42, 0.4);
    --yellow-glow: rgba(229, 255, 58, 0.35);
    --border-red: rgba(255, 42, 42, 0.5);
    --shadow-battle: rgba(220, 20, 60, 0.25);
}

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

body {
    font-family: "Oswald", "Impact", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--arena-black);
    color: var(--text-white);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
}

/* 暗纹背景 */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at 90% 10%, rgba(220, 20, 60, 0.18) 0%, transparent 50%),
        radial-gradient(circle at 10% 90%, rgba(229, 255, 58, 0.08) 0%, transparent 50%),
        repeating-linear-gradient(0deg,
            transparent 0 80px,
            rgba(255, 42, 42, 0.03) 80px 81px),
        repeating-linear-gradient(90deg,
            transparent 0 80px,
            rgba(255, 42, 42, 0.03) 80px 81px);
    z-index: 0;
    pointer-events: none;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== VS对决Logo ===== */
.dm-vs {
    width: 52px;
    height: 52px;
    position: relative;
    display: inline-block;
    background: linear-gradient(135deg, var(--flame-red), var(--blood-red));
    clip-path: polygon(15% 0, 100% 0, 85% 100%, 0 100%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px var(--red-glow);
    transform: skew(-6deg);
}
.dm-vs::before {
    content: "VS";
    font-family: "Impact", "Oswald", sans-serif;
    font-size: 26px;
    font-weight: 900;
    color: #fff;
    text-shadow: 0 2px 6px rgba(0,0,0,0.5);
    letter-spacing: -1px;
    transform: skew(6deg);
}

/* ===== 顶部 ===== */
.dm-header {
    background: linear-gradient(180deg, #000 0%, var(--arena-dark) 100%);
    padding: 14px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 2px solid var(--blood-red);
    box-shadow: 0 4px 20px rgba(220, 20, 60, 0.25);
}
.dm-header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.dm-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}
.dm-logo-text .brand {
    font-size: 26px;
    font-weight: 900;
    letter-spacing: 2px;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
    background: linear-gradient(90deg, #fff 0%, var(--flame-red) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 24px var(--red-glow);
}
.dm-logo-text .brand .dm-x {
    background: linear-gradient(90deg, var(--neon-yellow), var(--gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.dm-logo-text .tagline {
    font-size: 11px;
    letter-spacing: 4px;
    color: var(--neon-yellow);
    margin-top: 2px;
    font-weight: 700;
}
.dm-user-btns { display: flex; gap: 12px; }
.dm-btn-login, .dm-btn-vip {
    padding: 8px 22px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    transition: all 0.2s ease;
    font-family: inherit;
}
.dm-btn-login {
    background: transparent;
    color: var(--text-gray);
    border: 1px solid var(--arena-line);
    clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}
.dm-btn-login:hover {
    color: #fff;
    border-color: var(--flame-red);
}
.dm-btn-vip {
    background: linear-gradient(135deg, var(--flame-red), var(--blood-red));
    color: #fff;
    clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
    box-shadow: 0 4px 14px var(--red-glow);
}
.dm-btn-vip:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--red-glow);
}

/* ===== 导航 ===== */
.dm-nav {
    background: var(--arena-dark);
    border-bottom: 1px solid var(--arena-line);
    position: sticky;
    top: 78px;
    z-index: 99;
}
.dm-nav ul {
    display: flex;
    justify-content: center;
    gap: 4px;
    padding: 10px 24px;
    max-width: 1200px;
    margin: 0 auto;
}
.dm-nav a {
    padding: 8px 20px;
    color: var(--text-gray);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    transition: all 0.2s ease;
    position: relative;
    text-transform: uppercase;
}
.dm-nav a:hover {
    color: var(--flame-red);
}
.dm-nav a.active {
    background: linear-gradient(180deg, transparent 0%, var(--blood-red) 100%);
    color: #fff;
    border-bottom: 3px solid var(--neon-yellow);
}

/* ===== Hero 竞技场 ===== */
.dm-hero {
    background:
        radial-gradient(circle at 50% 50%, rgba(220, 20, 60, 0.3) 0%, transparent 65%),
        linear-gradient(180deg, #000 0%, var(--arena-dark) 40%, #000 100%);
    padding: 100px 0 110px;
    position: relative;
    overflow: hidden;
}
/* 擂台地台 */
.dm-hero::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 160px;
    background:
        linear-gradient(180deg, transparent 0%, rgba(220, 20, 60, 0.12) 100%);
    clip-path: polygon(20% 0, 80% 0, 100% 100%, 0 100%);
}
/* 绳索角柱 */
.dm-hero::after {
    content: "";
    position: absolute;
    top: 0; bottom: 0; left: 0; right: 0;
    background:
        repeating-linear-gradient(0deg,
            transparent 0 140px,
            rgba(220, 20, 60, 0.18) 140px 142px);
    mask-image: linear-gradient(90deg,
        transparent 8%, #000 15%, #000 85%, transparent 92%);
}
/* VS霓虹板 */
.dm-vs-neon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 320px;
    font-weight: 900;
    font-family: "Impact", sans-serif;
    color: transparent;
    -webkit-text-stroke: 2px rgba(255, 42, 42, 0.18);
    opacity: 0.4;
    pointer-events: none;
    letter-spacing: -20px;
}
.dm-hero-content { text-align: center; position: relative; z-index: 2; }
.dm-hero-badge {
    display: inline-block;
    padding: 7px 22px;
    background: rgba(0,0,0,0.6);
    border: 1px solid var(--neon-yellow);
    color: var(--neon-yellow);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 4px;
    margin-bottom: 28px;
    clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}
.dm-hero-title {
    font-size: 92px;
    font-weight: 900;
    line-height: 0.95;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
    letter-spacing: 2px;
    margin-bottom: 22px;
}
.dm-hero-title .line1 {
    display: block;
    background: linear-gradient(90deg, #fff 0%, var(--flame-red) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 4px 20px var(--red-glow));
}
.dm-hero-title .line2 {
    display: block;
    background: linear-gradient(90deg, var(--neon-yellow) 0%, var(--gold) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-top: 4px;
    filter: drop-shadow(0 4px 18px var(--yellow-glow));
}
.dm-hero-sub {
    font-size: 18px;
    color: var(--text-gray);
    letter-spacing: 6px;
    margin-bottom: 38px;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 600;
}
.dm-hero-btns {
    display: flex;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
}
.dm-btn {
    padding: 14px 36px;
    font-size: 15px;
    font-weight: 800;
    letter-spacing: 4px;
    transition: all 0.3s ease;
    display: inline-block;
    font-family: inherit;
    clip-path: polygon(12px 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
}
.dm-btn-primary {
    background: linear-gradient(135deg, var(--flame-red) 0%, var(--blood-red) 100%);
    color: #fff;
    box-shadow: 0 8px 24px var(--red-glow);
    border-bottom: 3px solid var(--neon-yellow);
}
.dm-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px var(--shadow-battle);
}
.dm-btn-ghost {
    background: transparent;
    color: var(--neon-yellow);
    border: 2px solid var(--neon-yellow);
    border-bottom-width: 4px;
}
.dm-btn-ghost:hover {
    background: rgba(229, 255, 58, 0.1);
}

/* ===== 对战数据条 ===== */
.dm-stats {
    padding: 44px 0;
    background: var(--arena-dark);
    border-top: 1px solid var(--arena-line);
    border-bottom: 1px solid var(--arena-line);
}
.dm-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
}
.dm-stat {
    padding: 24px 12px;
    background:
        linear-gradient(160deg, rgba(255, 42, 42, 0.12) 0%, rgba(10,10,10,0.8) 100%);
    border: 1px solid var(--arena-line);
    position: relative;
    transition: all 0.3s ease;
}
.dm-stat::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--flame-red), var(--neon-yellow));
}
.dm-stat:hover {
    border-color: var(--flame-red);
    transform: translateY(-3px);
}
.dm-stat-num {
    font-size: 40px;
    font-weight: 900;
    font-family: "Impact", sans-serif;
    background: linear-gradient(180deg, #fff 0%, var(--flame-red) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 6px;
    letter-spacing: 1px;
}
.dm-stat-label {
    color: var(--text-gray);
    font-size: 13px;
    letter-spacing: 3px;
    font-weight: 700;
}

/* ===== 通用区块 ===== */
.dm-section { padding: 80px 0; }
.dm-section-head { text-align: center; margin-bottom: 48px; position: relative; }
.dm-section-head::before, .dm-section-head::after {
    content: "";
    position: absolute;
    top: 28px;
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--blood-red));
}
.dm-section-head::before { left: 16%; }
.dm-section-head::after {
    right: 16%;
    background: linear-gradient(90deg, var(--blood-red), transparent);
}
.dm-section-title {
    font-size: 40px;
    font-weight: 900;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
    color: #fff;
    margin-bottom: 12px;
    letter-spacing: 4px;
}
.dm-section-title span {
    background: linear-gradient(90deg, var(--flame-red), var(--neon-yellow));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.dm-section-sub {
    color: var(--text-gray);
    font-size: 15px;
    max-width: 600px;
    margin: 0 auto;
    letter-spacing: 2px;
    font-weight: 600;
}

/* ===== 对决卡片 ===== */
.dm-card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.dm-card {
    background: var(--arena-gray);
    border-radius: 0;
    overflow: hidden;
    border: 1px solid var(--arena-line);
    transition: all 0.3s ease;
    position: relative;
    clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}
.dm-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--flame-red);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
    z-index: 2;
}
.dm-card:hover {
    transform: translateY(-5px);
    border-color: var(--flame-red);
    box-shadow: 0 14px 30px var(--shadow-battle);
}
.dm-card:hover::before { transform: scaleX(1); }
.dm-card-thumb {
    height: 162px;
    background:
        linear-gradient(135deg, var(--blood-red) 0%, #000 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 52px;
    position: relative;
    overflow: hidden;
}
.dm-card-thumb::after {
    content: "▶";
    position: absolute;
    width: 52px;
    height: 52px;
    background: rgba(0,0,0,0.7);
    color: #fff;
    border: 2px solid var(--neon-yellow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    padding-left: 3px;
}
.dm-tag {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--neon-yellow);
    color: #000;
    padding: 3px 12px;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 2px;
    clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}
.dm-card-body { padding: 14px 16px 18px; }
.dm-card-title {
    font-size: 16px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 8px;
    line-height: 1.4;
    letter-spacing: 0.5px;
}
.dm-card-meta {
    display: flex;
    justify-content: space-between;
    color: var(--text-dim);
    font-size: 12px;
    letter-spacing: 1px;
    font-weight: 600;
}
.dm-card-meta .views::before { content: "👁 "; color: var(--flame-red); }
.dm-card-meta .hd {
    color: var(--neon-cyan);
    font-weight: 800;
}

/* ===== 特性 ===== */
.dm-features {
    background: linear-gradient(180deg, var(--arena-black) 0%, var(--arena-dark) 50%, var(--arena-black) 100%);
    border-top: 1px solid var(--arena-line);
    border-bottom: 1px solid var(--arena-line);
}
.dm-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}
.dm-feat {
    background: var(--arena-gray);
    padding: 38px 26px;
    border: 1px solid var(--arena-line);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.dm-feat::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        linear-gradient(135deg, rgba(255, 42, 42, 0.08) 0%, transparent 60%);
    pointer-events: none;
}
.dm-feat::after {
    content: "";
    position: absolute;
    top: -40px; right: -40px;
    width: 140px; height: 140px;
    background: radial-gradient(circle, rgba(229, 255, 58, 0.08) 0%, transparent 70%);
}
.dm-feat:hover {
    transform: translateY(-5px);
    border-color: var(--flame-red);
    box-shadow: 0 14px 30px var(--shadow-battle);
}
.dm-feat-icon {
    width: 78px;
    height: 78px;
    margin: 0 auto 22px;
    background: linear-gradient(135deg, var(--blood-red), var(--flame-red));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 38px;
    clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
    box-shadow: 0 8px 22px var(--red-glow);
    position: relative;
    z-index: 1;
}
.dm-feat-title {
    font-size: 20px;
    font-weight: 900;
    color: #fff;
    margin-bottom: 10px;
    letter-spacing: 3px;
    position: relative;
    z-index: 1;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
}
.dm-feat-desc {
    color: var(--text-gray);
    font-size: 14px;
    position: relative;
    z-index: 1;
    font-weight: 500;
}

/* ===== CTA ===== */
.dm-cta {
    background:
        linear-gradient(135deg, #000 0%, var(--blood-red) 50%, #000 100%);
    padding: 70px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-top: 2px solid var(--neon-yellow);
    border-bottom: 2px solid var(--neon-yellow);
}
.dm-cta::before {
    content: "VS";
    position: absolute;
    font-size: 360px;
    font-family: "Impact", sans-serif;
    color: transparent;
    -webkit-text-stroke: 3px rgba(229, 255, 58, 0.15);
    opacity: 0.6;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    letter-spacing: -20px;
    pointer-events: none;
}
.dm-cta h2 {
    font-size: 38px;
    font-weight: 900;
    margin-bottom: 12px;
    letter-spacing: 6px;
    color: #fff;
    position: relative;
    z-index: 1;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
}
.dm-cta h2 .h2-x {
    background: linear-gradient(90deg, var(--neon-yellow), var(--gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.dm-cta p {
    font-size: 15px;
    color: var(--neon-yellow);
    margin-bottom: 28px;
    position: relative;
    z-index: 1;
    letter-spacing: 3px;
    font-weight: 600;
}
.dm-cta .dm-btn-ghost {
    background: rgba(0,0,0,0.5);
    color: var(--neon-yellow);
    position: relative;
    z-index: 1;
}

/* ===== 页脚 ===== */
.dm-footer {
    background: #000;
    padding: 60px 0 24px;
    color: var(--text-dim);
    border-top: 3px solid var(--blood-red);
}
.dm-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.dm-footer-brand .brand {
    font-size: 24px;
    font-weight: 900;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
    background: linear-gradient(90deg, #fff 0%, var(--flame-red) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
    letter-spacing: 2px;
}
.dm-footer-brand .brand .dm-x {
    background: linear-gradient(90deg, var(--neon-yellow), var(--gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.dm-footer-brand p {
    font-size: 13px;
    line-height: 2;
    color: var(--text-dim);
    letter-spacing: 0.5px;
}
.dm-footer-col h4 {
    color: var(--neon-yellow);
    font-size: 15px;
    margin-bottom: 16px;
    letter-spacing: 3px;
    font-weight: 800;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
}
.dm-footer-col ul li {
    margin-bottom: 10px;
    font-size: 13px;
}
.dm-footer-col ul li a:hover { color: var(--flame-red); }
.dm-footer-bottom {
    border-top: 1px solid var(--arena-line);
    padding-top: 20px;
    text-align: center;
    font-size: 12px;
    letter-spacing: 2px;
    color: #444;
}

/* ===== 页面横幅 ===== */
.dm-page-banner {
    background:
        radial-gradient(circle at 50% 100%, rgba(255, 42, 42, 0.3) 0%, transparent 70%),
        linear-gradient(180deg, #000 0%, var(--arena-dark) 100%);
    padding: 70px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--arena-line);
}
.dm-page-banner::after {
    content: "";
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--flame-red) 50%, transparent);
}
.dm-page-banner h1 {
    font-size: 52px;
    font-weight: 900;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
    letter-spacing: 6px;
    background: linear-gradient(90deg, #fff 0%, var(--flame-red) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
    filter: drop-shadow(0 4px 16px var(--red-glow));
}
.dm-page-banner p {
    color: var(--text-gray);
    font-size: 15px;
    max-width: 600px;
    margin: 0 auto;
    letter-spacing: 3px;
    font-weight: 600;
}
.dm-breadcrumb {
    margin-top: 14px;
    font-size: 12px;
    color: var(--text-dim);
    letter-spacing: 2px;
}
.dm-breadcrumb a:hover { color: var(--flame-red); }

/* ===== 关于页 ===== */
.dm-about {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}
.dm-about-visual {
    height: 380px;
    background:
        radial-gradient(circle at 30% 40%, rgba(255, 42, 42, 0.45) 0%, transparent 55%),
        radial-gradient(circle at 70% 60%, rgba(229, 255, 58, 0.18) 0%, transparent 55%),
        linear-gradient(135deg, var(--arena-gray) 0%, #000 100%);
    border: 2px solid var(--flame-red);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 130px;
    box-shadow: 0 16px 40px var(--shadow-battle);
    position: relative;
    overflow: hidden;
    clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 30px 100%, 0 calc(100% - 30px));
}
.dm-about-visual::before {
    content: "";
    position: absolute;
    inset: 10px;
    border: 1px dashed rgba(229, 255, 58, 0.35);
}
.dm-about-text h2 {
    font-size: 32px;
    font-weight: 900;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: 2px;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
}
.dm-about-text h2 .about-x {
    background: linear-gradient(90deg, var(--neon-yellow), var(--gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.dm-about-text p {
    color: var(--text-gray);
    margin-bottom: 16px;
    font-size: 15px;
    font-weight: 500;
}
.dm-about-list { list-style: none; margin-top: 20px; }
.dm-about-list li {
    padding: 8px 0 8px 30px;
    position: relative;
    color: var(--text-gray);
    font-weight: 600;
}
.dm-about-list li::before {
    content: "⚔";
    position: absolute;
    left: 0;
    color: var(--flame-red);
    font-size: 16px;
}

.dm-timeline {
    margin-top: 50px;
    position: relative;
    padding-left: 36px;
}
.dm-timeline::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--flame-red) 0%, var(--neon-yellow) 100%);
}
.dm-tl-item {
    position: relative;
    padding: 14px 0 26px 26px;
}
.dm-tl-item::before {
    content: "";
    position: absolute;
    left: -36px;
    top: 20px;
    width: 20px;
    height: 20px;
    background: var(--arena-black);
    border: 3px solid var(--flame-red);
    clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}
.dm-tl-year {
    font-size: 14px;
    font-weight: 800;
    color: var(--neon-yellow);
    letter-spacing: 2px;
    margin-bottom: 4px;
}
.dm-tl-title {
    font-size: 18px;
    font-weight: 900;
    color: #fff;
    margin-bottom: 6px;
    letter-spacing: 1px;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
}
.dm-tl-desc {
    color: var(--text-gray);
    font-size: 14px;
    font-weight: 500;
}

/* ===== 分类 ===== */
.dm-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.dm-tab {
    padding: 8px 22px;
    background: var(--arena-gray);
    border: 1px solid var(--arena-line);
    color: var(--text-gray);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.2s ease;
    clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}
.dm-tab.active, .dm-tab:hover {
    background: linear-gradient(135deg, var(--flame-red), var(--blood-red));
    color: #fff;
    border-color: transparent;
    border-bottom: 2px solid var(--neon-yellow);
}

/* ===== 会员方案 ===== */
.dm-pricing {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}
.dm-price-card {
    background: var(--arena-gray);
    padding: 40px 28px;
    border: 2px solid var(--arena-line);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}
.dm-price-card:hover {
    border-color: var(--flame-red);
    transform: translateY(-4px);
    box-shadow: 0 16px 36px var(--shadow-battle);
}
.dm-price-card.featured {
    border-color: var(--neon-yellow);
    background:
        linear-gradient(180deg, rgba(255, 42, 42, 0.1) 0%, var(--arena-gray) 100%);
    transform: scale(1.04);
    box-shadow: 0 0 30px var(--yellow-glow);
}
.dm-price-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--neon-yellow);
    color: #000;
    padding: 5px 20px;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 3px;
    clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
    font-family: inherit;
}
.dm-price-name {
    font-size: 20px;
    font-weight: 900;
    color: #fff;
    margin-bottom: 14px;
    letter-spacing: 4px;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
}
.dm-price-num {
    font-size: 48px;
    font-weight: 900;
    font-family: "Impact", sans-serif;
    background: linear-gradient(180deg, var(--flame-red) 0%, var(--neon-yellow) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
    letter-spacing: 1px;
}
.dm-price-num small {
    font-size: 14px;
    color: var(--text-dim);
    font-weight: 600;
    font-family: inherit;
    background: none;
    -webkit-text-fill-color: var(--text-dim);
}
.dm-price-desc {
    color: var(--text-gray);
    font-size: 13px;
    margin-bottom: 24px;
    letter-spacing: 2px;
    font-weight: 600;
}
.dm-price-list {
    list-style: none;
    text-align: left;
    margin-bottom: 26px;
}
.dm-price-list li {
    padding: 8px 0 8px 28px;
    position: relative;
    color: var(--text-gray);
    font-size: 14px;
    border-bottom: 1px dashed var(--arena-line);
    font-weight: 500;
}
.dm-price-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--neon-yellow);
    font-weight: 900;
}
.dm-price-btn {
    display: inline-block;
    padding: 12px 30px;
    font-weight: 800;
    letter-spacing: 4px;
    background: linear-gradient(135deg, var(--flame-red), var(--blood-red));
    color: #fff;
    transition: all 0.25s ease;
    clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
    border-bottom: 2px solid var(--neon-yellow);
    font-family: inherit;
}
.dm-price-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--red-glow);
}

/* ===== 榜单 ===== */
.dm-rank-list { display: grid; gap: 16px; }
.dm-rank-item {
    display: grid;
    grid-template-columns: 68px 1fr auto;
    gap: 22px;
    align-items: center;
    background: var(--arena-gray);
    padding: 18px 26px;
    border: 1px solid var(--arena-line);
    transition: all 0.3s ease;
    clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 50%, calc(100% - 18px) 100%, 0 100%, 18px 50%);
}
.dm-rank-item:hover {
    transform: translateX(8px);
    border-color: var(--flame-red);
    box-shadow: 0 8px 22px var(--shadow-battle);
}
.dm-rank-num {
    font-size: 42px;
    font-weight: 900;
    font-family: "Impact", sans-serif;
    background: linear-gradient(180deg, #fff, var(--flame-red));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-align: center;
    letter-spacing: -1px;
}
.dm-rank-item:nth-child(1) .dm-rank-num {
    background: linear-gradient(180deg, var(--neon-yellow), var(--gold));
    -webkit-background-clip: text;
    background-clip: text;
}
.dm-rank-title {
    font-size: 18px;
    font-weight: 900;
    color: #fff;
    margin-bottom: 6px;
    letter-spacing: 1px;
}
.dm-rank-meta {
    color: var(--text-dim);
    font-size: 13px;
    letter-spacing: 1px;
    font-weight: 600;
}
.dm-rank-score { text-align: right; }
.dm-rank-score .num {
    font-size: 26px;
    font-weight: 900;
    font-family: "Impact", sans-serif;
    background: linear-gradient(180deg, var(--neon-yellow), var(--flame-red));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.dm-rank-score .label {
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 2px;
    font-weight: 700;
}

/* ===== 新闻 ===== */
.dm-news-list { display: grid; gap: 22px; }
.dm-news-item {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 26px;
    background: var(--arena-gray);
    padding: 22px;
    border: 1px solid var(--arena-line);
    transition: all 0.3s ease;
}
.dm-news-item:hover {
    transform: translateY(-3px);
    border-color: var(--flame-red);
    box-shadow: 0 12px 26px var(--shadow-battle);
}
.dm-news-date {
    text-align: center;
    padding: 14px 8px;
    background: linear-gradient(135deg, var(--flame-red), var(--blood-red));
    color: #fff;
    position: relative;
    border-bottom: 3px solid var(--neon-yellow);
}
.dm-news-date::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--neon-yellow);
}
.dm-news-date .day {
    font-size: 34px;
    font-weight: 900;
    display: block;
    line-height: 1;
    font-family: "Impact", sans-serif;
}
.dm-news-date .month {
    font-size: 11px;
    margin-top: 4px;
    letter-spacing: 2px;
    opacity: 0.9;
    font-weight: 700;
}
.dm-news-title {
    font-size: 19px;
    font-weight: 900;
    color: #fff;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}
.dm-news-title:hover { color: var(--flame-red); }
.dm-news-excerpt {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 10px;
    font-weight: 500;
    line-height: 1.9;
}
.dm-news-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.dm-news-tags span {
    background: rgba(229, 255, 58, 0.1);
    color: var(--neon-yellow);
    padding: 3px 12px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 2px;
    border: 1px solid rgba(229, 255, 58, 0.3);
}

/* ===== 联系 ===== */
.dm-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
}
.dm-contact-info {
    background:
        radial-gradient(circle at 80% 20%, rgba(229, 255, 58, 0.18) 0%, transparent 55%),
        linear-gradient(135deg, var(--blood-red) 0%, var(--arena-dark) 100%);
    padding: 40px 32px;
    border: 2px solid var(--flame-red);
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 16px 36px var(--shadow-battle);
    clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}
.dm-contact-info::before {
    content: "VS";
    position: absolute;
    font-size: 220px;
    font-family: "Impact", sans-serif;
    color: transparent;
    -webkit-text-stroke: 2px rgba(229, 255, 58, 0.14);
    opacity: 0.8;
    bottom: -40px;
    right: -30px;
}
.dm-contact-info h3 {
    font-size: 26px;
    font-weight: 900;
    margin-bottom: 16px;
    letter-spacing: 4px;
    position: relative;
    z-index: 1;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
}
.dm-contact-info p {
    margin-bottom: 20px;
    font-size: 14px;
    color: var(--text-gray);
    position: relative;
    z-index: 1;
    font-weight: 500;
}
.dm-contact-line {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.15);
    position: relative;
    z-index: 1;
}
.dm-contact-line .ico { font-size: 22px; }
.dm-contact-line .label { font-size: 12px; color: var(--neon-yellow); letter-spacing: 2px; font-weight: 700; }
.dm-contact-line .val {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
}

.dm-contact-form {
    background: var(--arena-gray);
    padding: 38px 32px;
    border: 1px solid var(--arena-line);
}
.dm-form-group { margin-bottom: 20px; }
.dm-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 800;
    color: var(--neon-yellow);
    font-size: 13px;
    letter-spacing: 3px;
    font-family: "Impact", "Oswald", "PingFang SC", sans-serif;
}
.dm-form-group input, .dm-form-group textarea, .dm-form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--arena-line);
    border-radius: 0;
    font-family: inherit;
    font-size: 14px;
    background: var(--arena-black);
    color: #fff;
    transition: all 0.2s ease;
    font-weight: 500;
}
.dm-form-group input:focus, .dm-form-group textarea:focus, .dm-form-group select:focus {
    outline: none;
    border-color: var(--flame-red);
    background: #000;
    box-shadow: 0 0 0 3px rgba(255, 42, 42, 0.15);
}
.dm-form-group textarea { resize: vertical; min-height: 120px; }
.dm-form-submit {
    width: 100%;
    padding: 14px;
    border: none;
    font-weight: 900;
    letter-spacing: 6px;
    background: linear-gradient(135deg, var(--flame-red), var(--blood-red));
    color: #fff;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 3px solid var(--neon-yellow);
    clip-path: polygon(14px 0, 100% 0, calc(100% - 14px) 100%, 0 100%);
    font-family: inherit;
}
.dm-form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px var(--red-glow);
}

/* ===== FAQ ===== */
.dm-faq-grid {
    display: grid;
    gap: 14px;
    max-width: 800px;
    margin: 0 auto;
}
.dm-faq-item {
    background: var(--arena-gray);
    padding: 22px 26px;
    border: 1px solid var(--arena-line);
    position: relative;
}
.dm-faq-item::before {
    content: "";
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--flame-red), var(--neon-yellow));
}
.dm-faq-q {
    font-size: 16px;
    font-weight: 900;
    color: #fff;
    margin-bottom: 8px;
    padding-left: 32px;
    position: relative;
    letter-spacing: 0.5px;
}
.dm-faq-q::before {
    content: "Q";
    position: absolute;
    left: 0;
    top: -1px;
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, var(--flame-red), var(--blood-red));
    color: #fff;
    font-size: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    border-bottom: 2px solid var(--neon-yellow);
}
.dm-faq-a {
    color: var(--text-gray);
    font-size: 14px;
    padding-left: 32px;
    font-weight: 500;
    line-height: 1.9;
}

/* ===== 响应式 ===== */
@media (max-width: 980px) {
    .dm-stats-grid { grid-template-columns: repeat(2, 1fr); }
    .dm-card-grid { grid-template-columns: repeat(2, 1fr); }
    .dm-features-grid { grid-template-columns: 1fr; }
    .dm-pricing { grid-template-columns: 1fr; }
    .dm-price-card.featured { transform: none; }
    .dm-about { grid-template-columns: 1fr; }
    .dm-contact-grid { grid-template-columns: 1fr; }
    .dm-footer-grid { grid-template-columns: 1fr 1fr; }
    .dm-hero-title { font-size: 62px; }
    .dm-vs-neon { font-size: 200px; letter-spacing: -10px; }
    .dm-nav ul { flex-wrap: wrap; }
}
@media (max-width: 600px) {
    .dm-card-grid { grid-template-columns: 1fr; }
    .dm-news-item { grid-template-columns: 1fr; }
    .dm-footer-grid { grid-template-columns: 1fr; }
    .dm-section-title { font-size: 30px; letter-spacing: 2px; }
    .dm-hero-title { font-size: 44px; }
    .dm-vs-neon { font-size: 140px; }
    .dm-page-banner h1 { font-size: 36px; letter-spacing: 2px; }
}