/* ==========================================================================
   LONG8 ESPORTS · 电竞赛事直播媒体中心
   文件: static/css/style.css
   设计语言: Esports Broadcast Studio(电竞直播演播室)
   色板: 深海军蓝 / 电光蓝 / 霓虹青 / 少量紫
   自定义 class 统一使用 bc- 前缀,基础布局可配合 Tailwind 工具类
   ========================================================================== */

/* ---------- 设计变量 ---------- */

:root {
    --bc-navy: #0A1226;
    --bc-navy-2: #0E1A38;
    --bc-navy-3: #12224A;
    --bc-blue: #2E6BFF;
    --bc-cyan: #00E5FF;
    --bc-purple: #7C4DFF;
    --bc-text: #B9C6E4;
    --bc-text-dim: #7E8FB5;
    --bc-white: #EAF1FF;
    --bc-live-red: #FF4D6D;
    --bc-line: rgba(46, 107, 255, 0.28);
    --bc-line-cyan: rgba(0, 229, 255, 0.24);
    --bc-radius: 14px;
    --bc-glow: 0 0 18px rgba(46, 107, 255, 0.45);
}

/* ---------- 全局重置与基础 ---------- */

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

html {
    scroll-behavior: smooth;
}

.bc-body {
    background: var(--bc-navy);
    color: var(--bc-text);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    line-height: 1.75;
    font-size: 16px;
}

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

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

.bc-container {
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- 通用组件 ---------- */

.bc-kicker {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--bc-cyan);
    font-size: 13px;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.bc-kicker::before {
    content: "";
    width: 26px;
    height: 2px;
    background: var(--bc-cyan);
}

.bc-section-head {
    margin-bottom: 34px;
}

.bc-section-head h2 {
    color: var(--bc-white);
    font-size: 26px;
    margin-top: 10px;
    letter-spacing: 1px;
}

.bc-section-head p {
    color: var(--bc-text-dim);
    margin-top: 10px;
    max-width: 760px;
}

.bc-section {
    padding: 56px 0;
}

.bc-section-alt {
    background: var(--bc-navy-2);
    border-top: 1px solid var(--bc-line);
    border-bottom: 1px solid var(--bc-line);
}

/* ---------- 按钮 ---------- */

.bc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 26px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.bc-btn-primary {
    background: linear-gradient(135deg, var(--bc-blue), var(--bc-purple));
    color: #ffffff;
    box-shadow: var(--bc-glow);
}

.bc-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 26px rgba(46, 107, 255, 0.6);
}

.bc-btn-ghost {
    border: 1px solid var(--bc-line-cyan);
    color: var(--bc-cyan);
    background: transparent;
}

.bc-btn-ghost:hover {
    background: rgba(0, 229, 255, 0.08);
}

.bc-btn-lg {
    padding: 16px 34px;
    font-size: 18px;
}

/* ---------- Header:吸顶演播室导航 ---------- */

.bc-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(10, 18, 38, 0.94);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--bc-line);
}

.bc-header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    max-width: 1320px;
    margin: 0 auto;
    padding: 14px 20px;
}

.bc-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.bc-brand-name {
    color: var(--bc-white);
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 2px;
}

/* LIVE 呼吸圆点 */

.bc-live-dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--bc-live-red);
    animation: bc-live-pulse 1.6s ease-out infinite;
}

@keyframes bc-live-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 77, 109, 0.55);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(255, 77, 109, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 77, 109, 0);
    }
}

.bc-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background: transparent;
    border: 1px solid var(--bc-line-cyan);
    border-radius: 10px;
    color: var(--bc-cyan);
    font-size: 18px;
    cursor: pointer;
}

.bc-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 4px;
    padding: 12px 20px 20px;
    background: var(--bc-navy-2);
    border-top: 1px solid var(--bc-line);
    z-index: 40;
}

.bc-menu-open .bc-nav {
    display: flex;
}

.bc-nav a {
    padding: 10px 4px;
    color: var(--bc-text);
    font-size: 16px;
    border-bottom: 1px dashed var(--bc-line);
}

.bc-nav a:hover {
    color: var(--bc-cyan);
}

/* 滚动信号字幕条 */

.bc-ticker {
    background: var(--bc-navy-2);
    border-top: 1px solid var(--bc-line);
    overflow: hidden;
}

.bc-ticker-track {
    display: flex;
    width: max-content;
    animation: bc-ticker-scroll 30s linear infinite;
}

.bc-ticker-group {
    display: flex;
    gap: 56px;
    padding: 8px 56px 8px 0;
}

.bc-ticker-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--bc-text-dim);
    font-size: 13px;
    white-space: nowrap;
}

.bc-ticker-item i {
    color: var(--bc-cyan);
    font-size: 12px;
}

.bc-ticker:hover .bc-ticker-track,
.bc-ticker-paused .bc-ticker-track {
    animation-play-state: paused;
}

@keyframes bc-ticker-scroll {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-50%);
    }
}

/* ---------- Hero:直播主舞台 ---------- */

.bc-hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(ellipse at 80% 20%, rgba(124, 77, 255, 0.18), transparent 55%),
        radial-gradient(ellipse at 15% 85%, rgba(46, 107, 255, 0.22), transparent 55%),
        var(--bc-navy);
}

.bc-hero-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 36px;
    align-items: center;
    max-width: 1320px;
    margin: 0 auto;
    padding: 52px 20px 44px;
}

.bc-hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 14px;
    border: 1px solid var(--bc-line-cyan);
    border-radius: 999px;
    color: var(--bc-cyan);
    font-size: 13px;
    letter-spacing: 2px;
}

.bc-hero-title {
    margin-top: 18px;
    color: var(--bc-white);
    font-size: 40px;
    font-weight: 900;
    letter-spacing: 2px;
    line-height: 1.25;
}

.bc-hero-sub {
    margin-top: 16px;
    color: var(--bc-text);
    font-size: 16px;
    max-width: 560px;
}

.bc-hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 26px;
}

/* Hero 内容标签(单一 class,勿加其它 class) */

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.hero-tags span {
    padding: 6px 14px;
    border: 1px solid var(--bc-line-cyan);
    border-radius: 999px;
    background: rgba(0, 229, 255, 0.06);
    color: var(--bc-cyan);
    font-size: 13px;
    letter-spacing: 1px;
}

/* Hero 右侧媒体面板 */

.bc-hero-media {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.bc-hero-photo {
    position: relative;
    border-radius: var(--bc-radius);
    overflow: hidden;
    border: 1px solid var(--bc-line);
    box-shadow: var(--bc-glow);
}

.bc-hero-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 3 / 2;
}

.bc-live-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    border-radius: 999px;
    background: rgba(10, 18, 38, 0.82);
    border: 1px solid var(--bc-live-red);
    color: var(--bc-live-red);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
}

/* 比分卡 */

.bc-score-card {
    position: absolute;
    left: 14px;
    bottom: 14px;
    min-width: 236px;
    padding: 12px 16px;
    border-radius: 12px;
    background: rgba(10, 18, 38, 0.88);
    border: 1px solid var(--bc-line-cyan);
    backdrop-filter: blur(6px);
}

.bc-score-state {
    display: block;
    color: var(--bc-cyan);
    font-size: 12px;
    letter-spacing: 2px;
    margin-bottom: 6px;
}

.bc-score-card.bc-state-paused .bc-score-state {
    color: #FFC24D;
}

.bc-score-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.bc-score-team {
    color: var(--bc-white);
    font-size: 15px;
    font-weight: 700;
}

.bc-score-point {
    color: var(--bc-cyan);
    font-size: 20px;
    font-weight: 900;
}

.bc-score-vs {
    color: var(--bc-text-dim);
    font-size: 12px;
}

.bc-score-note {
    display: block;
    margin-top: 4px;
    color: var(--bc-text-dim);
    font-size: 12px;
}

/* 状态面板 */

.bc-status-panel {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    padding: 12px 16px;
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    background: var(--bc-navy-2);
}

.bc-status-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--bc-text-dim);
    font-size: 13px;
}

.bc-status-item::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--bc-cyan);
    box-shadow: 0 0 8px rgba(0, 229, 255, 0.8);
}

/* 直播信号条 */

.bc-signal-bar {
    background: var(--bc-navy-2);
    border-top: 1px solid var(--bc-line-cyan);
    overflow: hidden;
}

.bc-signal-track {
    display: flex;
    width: max-content;
    animation: bc-signal-scroll 26s linear infinite;
}

.bc-signal-group {
    display: flex;
    gap: 44px;
    padding: 9px 44px 9px 0;
}

.bc-signal-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--bc-text-dim);
    font-size: 12px;
    letter-spacing: 1px;
    white-space: nowrap;
}

.bc-signal-chip::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--bc-purple);
}

@keyframes bc-signal-scroll {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-50%);
    }
}

/* ---------- 直播节目单 ---------- */

.bc-program-table {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.bc-match-card {
    position: relative;
    padding: 20px;
    border: 1px solid var(--bc-line);
    border-left: 3px solid var(--bc-blue);
    border-radius: 12px;
    background: var(--bc-navy-2);
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.bc-match-card:hover {
    border-color: var(--bc-cyan);
    transform: translateY(-3px);
}

.bc-match-time {
    color: var(--bc-cyan);
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 1px;
}

.bc-match-status {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    letter-spacing: 1px;
}

.bc-match-status.bc-on {
    background: rgba(255, 77, 109, 0.14);
    border: 1px solid var(--bc-live-red);
    color: var(--bc-live-red);
}

.bc-match-status.bc-soon {
    background: rgba(0, 229, 255, 0.1);
    border: 1px solid var(--bc-line-cyan);
    color: var(--bc-cyan);
}

.bc-match-status.bc-done {
    background: rgba(124, 77, 255, 0.14);
    border: 1px solid var(--bc-purple);
    color: #A98CFF;
}

.bc-match-card h3 {
    margin-top: 8px;
    color: var(--bc-white);
    font-size: 17px;
}

.bc-match-teams {
    margin-top: 6px;
    color: var(--bc-text);
    font-size: 15px;
}

.bc-match-teams em {
    color: var(--bc-cyan);
    font-style: normal;
    margin: 0 8px;
    font-size: 13px;
}

.bc-match-meta {
    margin-top: 4px;
    color: var(--bc-text-dim);
    font-size: 13px;
}

.bc-match-btn {
    display: inline-flex;
    margin-top: 14px;
    padding: 8px 20px;
    border: 1px solid var(--bc-line-cyan);
    border-radius: 8px;
    color: var(--bc-cyan);
    font-size: 14px;
    transition: background 0.2s ease;
}

.bc-match-btn:hover {
    background: rgba(0, 229, 255, 0.1);
}

/* ---------- 赛事日历 ---------- */

.bc-calendar-strip {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.bc-calendar-day {
    padding: 18px;
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    background: var(--bc-navy);
}

.bc-calendar-day.bc-today {
    border-color: var(--bc-cyan);
    box-shadow: 0 0 16px rgba(0, 229, 255, 0.18);
}

.bc-day-name {
    color: var(--bc-white);
    font-size: 16px;
    font-weight: 700;
}

.bc-day-note {
    display: inline-block;
    margin-left: 10px;
    padding: 2px 10px;
    border-radius: 999px;
    background: rgba(0, 229, 255, 0.1);
    color: var(--bc-cyan);
    font-size: 12px;
}

.bc-calendar-day ul {
    list-style: none;
    margin-top: 10px;
}

.bc-calendar-day li {
    position: relative;
    padding-left: 16px;
    color: var(--bc-text-dim);
    font-size: 13px;
    margin-top: 6px;
}

.bc-calendar-day li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--bc-blue);
}

/* ---------- 游戏项目 ---------- */

.bc-game-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.bc-game-card {
    padding: 24px;
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    background: var(--bc-navy-2);
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.bc-game-card:hover {
    transform: translateY(-3px);
    border-color: var(--bc-cyan);
}

.bc-game-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--bc-blue), var(--bc-purple));
    color: #ffffff;
    font-size: 22px;
}

.bc-game-card h3 {
    margin-top: 14px;
    color: var(--bc-white);
    font-size: 19px;
}

.bc-game-card p {
    margin-top: 8px;
    color: var(--bc-text-dim);
    font-size: 14px;
}

.bc-game-tag {
    display: inline-block;
    margin-top: 12px;
    color: var(--bc-cyan);
    font-size: 13px;
    letter-spacing: 1px;
}

/* ---------- 赛事分析 ---------- */

.bc-analysis-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.bc-analysis-card {
    padding: 22px;
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    background: var(--bc-navy);
}

.bc-analysis-card h3 {
    color: var(--bc-white);
    font-size: 18px;
}

.bc-analysis-card > p {
    margin-top: 8px;
    color: var(--bc-text-dim);
    font-size: 14px;
}

.bc-analysis-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 12px;
}

.bc-bar-label {
    flex: 0 0 72px;
    color: var(--bc-text-dim);
    font-size: 13px;
}

.bc-bar-track {
    flex: 1;
    height: 8px;
    border-radius: 999px;
    background: var(--bc-navy-3);
    overflow: hidden;
}

.bc-bar-fill {
    display: block;
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--bc-blue), var(--bc-cyan));
}

/* ---------- 战队选手 ---------- */

.bc-team-strip {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 18px;
    padding: 16px 20px;
    border: 1px solid var(--bc-line);
    border-left: 3px solid var(--bc-purple);
    border-radius: 10px;
    background: var(--bc-navy-2);
    margin-bottom: 14px;
}

.bc-team-name {
    color: var(--bc-white);
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 1px;
}

.bc-team-tag {
    padding: 3px 12px;
    border-radius: 999px;
    background: rgba(124, 77, 255, 0.14);
    color: #A98CFF;
    font-size: 12px;
}

.bc-team-link {
    margin-left: auto;
    color: var(--bc-cyan);
    font-size: 14px;
}

.bc-team-link:hover {
    text-decoration: underline;
}

.bc-roster-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 20px;
}

.bc-player-card {
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    overflow: hidden;
    background: var(--bc-navy-2);
}

.bc-player-card img {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
}

.bc-player-info {
    padding: 12px 16px;
}

.bc-player-info h3 {
    color: var(--bc-white);
    font-size: 17px;
}

.bc-player-info p {
    color: var(--bc-text-dim);
    font-size: 13px;
    margin-top: 2px;
}

/* ---------- 平台功能 ---------- */

.bc-split {
    display: grid;
    grid-template-columns: 1fr;
    gap: 26px;
    align-items: center;
}

.bc-split-media img {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    border-radius: var(--bc-radius);
    border: 1px solid var(--bc-line);
}

.bc-feature-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.bc-feature-card {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 18px;
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    background: var(--bc-navy);
}

.bc-feature-card i {
    flex: 0 0 auto;
    margin-top: 4px;
    color: var(--bc-cyan);
    font-size: 20px;
}

.bc-feature-card h3 {
    color: var(--bc-white);
    font-size: 16px;
}

.bc-feature-card p {
    margin-top: 4px;
    color: var(--bc-text-dim);
    font-size: 13px;
}

/* ---------- 观众社区 ---------- */

.bc-community-hero {
    border-radius: var(--bc-radius);
    overflow: hidden;
    border: 1px solid var(--bc-line);
}

.bc-community-hero img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.bc-community-hero figcaption {
    padding: 10px 18px;
    background: var(--bc-navy-2);
    color: var(--bc-text-dim);
    font-size: 13px;
}

.bc-community-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-top: 20px;
}

.bc-stat-item {
    padding: 18px 10px;
    text-align: center;
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    background: var(--bc-navy-2);
}

.bc-stat-item strong {
    display: block;
    color: var(--bc-cyan);
    font-size: 22px;
}

.bc-stat-item span {
    color: var(--bc-text-dim);
    font-size: 13px;
}

/* ---------- 观众评价 ---------- */

.bc-review-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.bc-review-card {
    padding: 22px;
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    background: var(--bc-navy);
}

.bc-review-stars {
    color: #FFC24D;
    font-size: 13px;
    letter-spacing: 2px;
}

.bc-review-card > p:nth-child(2) {
    margin-top: 10px;
    color: var(--bc-text);
    font-size: 15px;
}

.bc-review-user {
    display: block;
    margin-top: 12px;
    color: var(--bc-cyan);
    font-size: 13px;
}

/* ---------- FAQ:字幕滚动问答 ---------- */

.bc-faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.bc-faq-item {
    background: var(--bc-navy-2);
    border: 1px solid var(--bc-line);
    border-left: 3px solid var(--bc-cyan);
    border-radius: 10px;
    overflow: hidden;
}

.bc-faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    padding: 16px 18px;
    background: transparent;
    border: none;
    color: var(--bc-white);
    font-size: 15px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
}

.bc-faq-q span {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.bc-faq-q span i {
    color: var(--bc-cyan);
}

.bc-faq-q > i {
    color: var(--bc-cyan);
    transition: transform 0.3s ease;
}

.bc-faq-item.bc-open .bc-faq-q > i {
    transform: rotate(180deg);
}

.bc-faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.bc-faq-item.bc-open .bc-faq-a {
    max-height: 300px;
}

.bc-faq-a p {
    padding: 0 18px 16px 46px;
    color: var(--bc-text-dim);
    font-size: 14px;
}

/* ---------- Final CTA:直播 Dock ---------- */

.bc-final-cta {
    padding: 64px 20px;
    background:
        radial-gradient(ellipse at 50% 120%, rgba(46, 107, 255, 0.3), transparent 60%),
        var(--bc-navy);
}

.bc-dock {
    max-width: 860px;
    margin: 0 auto;
    padding: 42px 28px;
    text-align: center;
    border: 1px solid var(--bc-line-cyan);
    border-radius: 20px;
    background: rgba(14, 26, 56, 0.85);
    box-shadow: 0 0 40px rgba(0, 229, 255, 0.12);
}

.bc-dock .bc-kicker {
    justify-content: center;
}

.bc-dock .bc-kicker::before {
    display: none;
}

.bc-dock h2 {
    margin-top: 12px;
    color: var(--bc-white);
    font-size: 28px;
    letter-spacing: 2px;
}

.bc-dock > p {
    margin-top: 10px;
    color: var(--bc-text-dim);
}

.bc-dock > p strong {
    color: var(--bc-cyan);
    font-size: 20px;
}

.bc-dock-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    margin-top: 26px;
}

.bc-dock-note {
    margin-top: 18px !important;
    font-size: 12px;
}

/* ---------- 内页通用:页头 ---------- */

.bc-page-head {
    padding: 54px 0 44px;
    background:
        radial-gradient(ellipse at 20% 0%, rgba(46, 107, 255, 0.22), transparent 55%),
        var(--bc-navy-2);
    border-bottom: 1px solid var(--bc-line);
}

.bc-crumbs {
    color: var(--bc-text-dim);
    font-size: 13px;
    letter-spacing: 1px;
}

.bc-crumbs a:hover {
    color: var(--bc-cyan);
}

.bc-page-head h2 {
    margin-top: 12px;
    color: var(--bc-white);
    font-size: 32px;
    letter-spacing: 2px;
}

.bc-page-head .bc-lead {
    margin-top: 12px;
    color: var(--bc-text);
    max-width: 720px;
}

/* ---------- 内页:about ---------- */

.bc-check-list {
    list-style: none;
    margin-top: 16px;
}

.bc-check-list li {
    position: relative;
    padding-left: 26px;
    color: var(--bc-text);
    font-size: 15px;
    margin-top: 8px;
}

.bc-check-list li::before {
    content: "\f058";
    position: absolute;
    left: 0;
    top: 2px;
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--bc-cyan);
}

.bc-timeline {
    position: relative;
    margin-top: 30px;
    padding-left: 26px;
}

.bc-timeline::before {
    content: "";
    position: absolute;
    left: 7px;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background: linear-gradient(180deg, var(--bc-cyan), var(--bc-purple));
}

.bc-timeline-item {
    position: relative;
    padding: 0 0 26px 20px;
}

.bc-timeline-item::before {
    content: "";
    position: absolute;
    left: -25px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bc-navy);
    border: 2px solid var(--bc-cyan);
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.6);
}

.bc-timeline-stage {
    color: var(--bc-cyan);
    font-size: 13px;
    letter-spacing: 2px;
}

.bc-timeline-item h3 {
    margin-top: 4px;
    color: var(--bc-white);
    font-size: 18px;
}

.bc-timeline-item p {
    margin-top: 4px;
    color: var(--bc-text-dim);
    font-size: 14px;
}

.bc-duty-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.bc-duty-card {
    padding: 20px;
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    background: var(--bc-navy-2);
}

.bc-duty-card i {
    color: var(--bc-cyan);
    font-size: 20px;
}

.bc-duty-card h3 {
    margin-top: 10px;
    color: var(--bc-white);
    font-size: 17px;
}

.bc-duty-card p {
    margin-top: 6px;
    color: var(--bc-text-dim);
    font-size: 13px;
}

.bc-principle-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    margin-top: 10px;
}

.bc-principle-card {
    padding: 22px;
    border: 1px solid var(--bc-line);
    border-top: 3px solid var(--bc-purple);
    border-radius: 12px;
    background: var(--bc-navy);
}

.bc-principle-card h3 {
    color: var(--bc-white);
    font-size: 17px;
}

.bc-principle-card p {
    margin-top: 6px;
    color: var(--bc-text-dim);
    font-size: 14px;
}

.bc-split-copy h2 {
    color: var(--bc-white);
    font-size: 24px;
    margin-top: 10px;
}

.bc-split-copy > p {
    margin-top: 10px;
    color: var(--bc-text);
    font-size: 15px;
}

/* ---------- 内页:product 节目栏目 ---------- */

.bc-slot-strip {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.bc-slot-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    background: var(--bc-navy-2);
}

.bc-slot-name {
    flex: 0 0 auto;
    color: var(--bc-cyan);
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 2px;
}

.bc-slot-card p {
    color: var(--bc-text-dim);
    font-size: 14px;
}

.bc-program-category h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--bc-white);
    font-size: 20px;
    letter-spacing: 1px;
    margin-bottom: 18px;
}

.bc-program-category h3 i {
    color: var(--bc-cyan);
}

.bc-category-note {
    color: var(--bc-text-dim);
    font-size: 14px;
    margin-bottom: 20px;
}

.bc-note-strong {
    margin-top: 22px;
    margin-bottom: 0;
    padding: 14px 18px;
    border-left: 3px solid var(--bc-cyan);
    background: var(--bc-navy-2);
    color: var(--bc-text);
}

.bc-program-card {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    margin-bottom: 16px;
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    overflow: hidden;
    background: var(--bc-navy-2);
}

.bc-program-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 16 / 9;
}

.bc-program-body {
    padding: 20px;
}

.bc-program-body h4 {
    color: var(--bc-white);
    font-size: 17px;
}

.bc-program-body p {
    margin-top: 6px;
    color: var(--bc-text-dim);
    font-size: 14px;
}

.bc-program-chip {
    display: inline-block;
    margin-top: 12px;
    padding: 3px 12px;
    border-radius: 999px;
    border: 1px solid var(--bc-line-cyan);
    color: var(--bc-cyan);
    font-size: 12px;
}

.bc-table-scroll {
    overflow-x: auto;
}

.bc-schedule-table {
    width: 100%;
    min-width: 640px;
    border-collapse: collapse;
    font-size: 14px;
}

.bc-schedule-table th {
    padding: 12px 16px;
    text-align: left;
    color: var(--bc-cyan);
    border-bottom: 1px solid var(--bc-line-cyan);
    letter-spacing: 1px;
}

.bc-schedule-table td {
    padding: 12px 16px;
    color: var(--bc-text);
    border-bottom: 1px dashed var(--bc-line);
}

.bc-schedule-table td:first-child {
    color: var(--bc-white);
    font-weight: 700;
}

/* ---------- 内页:news 电讯台 ---------- */

.bc-news-ticker {
    background: var(--bc-navy-3);
    border-bottom: 1px solid var(--bc-line-cyan);
    overflow: hidden;
}

.bc-news-ticker-track {
    display: flex;
    width: max-content;
    animation: bc-ticker-scroll 24s linear infinite;
}

.bc-news-ticker-group {
    display: flex;
    gap: 60px;
    padding: 10px 60px 10px 0;
}

.bc-news-ticker-item {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--bc-cyan);
    font-size: 14px;
    white-space: nowrap;
}

.bc-news-ticker:hover .bc-news-ticker-track,
.bc-news-ticker.bc-ticker-paused .bc-news-ticker-track {
    animation-play-state: paused;
}

.bc-headline {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    align-items: center;
}

.bc-headline-media {
    border-radius: var(--bc-radius);
    overflow: hidden;
    border: 1px solid var(--bc-line);
}

.bc-headline-media img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.bc-headline-body h3 {
    color: var(--bc-white);
    font-size: 22px;
}

.bc-headline-body p {
    margin-top: 10px;
    color: var(--bc-text);
    font-size: 15px;
}

.bc-news-group {
    margin-bottom: 30px;
}

.bc-news-group:last-child {
    margin-bottom: 0;
}

.bc-news-group h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--bc-white);
    font-size: 19px;
    letter-spacing: 1px;
    margin-bottom: 14px;
}

.bc-news-group h3 i {
    color: var(--bc-cyan);
}

.bc-news-item {
    padding: 16px 0;
    border-bottom: 1px dashed var(--bc-line);
}

.bc-news-meta {
    color: var(--bc-cyan);
    font-size: 13px;
    letter-spacing: 1px;
}

.bc-news-item h4 {
    margin-top: 4px;
    color: var(--bc-white);
    font-size: 16px;
}

.bc-news-item p {
    margin-top: 4px;
    color: var(--bc-text-dim);
    font-size: 14px;
}

/* ---------- 内页:contact 赛事服务台 ---------- */

.bc-service-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.bc-service-card {
    padding: 24px;
    border: 1px solid var(--bc-line);
    border-top: 3px solid var(--bc-blue);
    border-radius: 12px;
    background: var(--bc-navy-2);
}

.bc-service-card .bc-service-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(46, 107, 255, 0.16);
    color: var(--bc-cyan);
    font-size: 20px;
}

.bc-service-card h3 {
    margin-top: 12px;
    color: var(--bc-white);
    font-size: 18px;
}

.bc-service-card p {
    margin-top: 6px;
    color: var(--bc-text-dim);
    font-size: 14px;
}

.bc-service-card ul {
    list-style: none;
    margin-top: 12px;
}

.bc-service-card li {
    position: relative;
    padding-left: 18px;
    color: var(--bc-text);
    font-size: 14px;
    margin-top: 6px;
}

.bc-service-card li::before {
    content: "\f0da";
    position: absolute;
    left: 0;
    top: 2px;
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--bc-cyan);
    font-size: 12px;
}

.bc-window-tag {
    display: inline-block;
    margin-top: 12px;
    padding: 3px 12px;
    border-radius: 999px;
    background: rgba(0, 229, 255, 0.1);
    color: var(--bc-cyan);
    font-size: 12px;
}

.bc-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    margin-top: 20px;
}

.bc-step {
    padding: 18px;
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    background: var(--bc-navy);
}

.bc-step-num {
    color: var(--bc-purple);
    font-size: 24px;
    font-weight: 900;
    font-style: italic;
}

.bc-step h3 {
    margin-top: 6px;
    color: var(--bc-white);
    font-size: 16px;
}

.bc-step p {
    margin-top: 4px;
    color: var(--bc-text-dim);
    font-size: 13px;
}

.bc-desk-board {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.bc-desk-cell {
    padding: 18px;
    border: 1px solid var(--bc-line);
    border-radius: 12px;
    background: var(--bc-navy-2);
}

.bc-desk-cell strong {
    display: block;
    color: var(--bc-white);
    font-size: 16px;
}

.bc-desk-cell span {
    display: block;
    margin-top: 4px;
    color: var(--bc-text-dim);
    font-size: 13px;
}

.bc-desk-on {
    display: inline-block;
    margin-top: 10px;
    padding: 3px 12px;
    border-radius: 999px;
    border: 1px solid var(--bc-live-red);
    color: var(--bc-live-red);
    font-size: 12px;
}

.bc-quick-links {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.bc-quick-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 18px;
    border: 1px solid var(--bc-line);
    border-radius: 10px;
    background: var(--bc-navy-2);
    color: var(--bc-white);
    font-size: 15px;
    transition: border-color 0.2s ease;
}

.bc-quick-link i {
    color: var(--bc-cyan);
}

.bc-quick-link:hover {
    border-color: var(--bc-cyan);
}

/* ---------- Footer:广播站底栏 ---------- */

.bc-footer {
    background: #070D1C;
    border-top: 1px solid var(--bc-line);
    padding: 48px 0 26px;
}

.bc-footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
}

.bc-footer-brand a {
    color: var(--bc-white);
    font-size: 22px;
    font-weight: 900;
    letter-spacing: 2px;
}

.bc-footer-brand a:hover {
    color: var(--bc-cyan);
}

.bc-footer-brand p {
    margin-top: 10px;
    color: var(--bc-text-dim);
    font-size: 14px;
    max-width: 320px;
}

.bc-footer-col {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.bc-footer-col h3 {
    color: var(--bc-white);
    font-size: 15px;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.bc-footer-col a,
.bc-footer-col span {
    color: var(--bc-text-dim);
    font-size: 14px;
}

.bc-footer-col a:hover {
    color: var(--bc-cyan);
}

.bc-footer-note {
    margin-top: 30px;
    padding-top: 18px;
    border-top: 1px dashed var(--bc-line);
    color: var(--bc-text-dim);
    font-size: 12px;
    line-height: 1.9;
}

.bc-footer-copy {
    margin-top: 10px;
    color: var(--bc-text-dim);
    font-size: 12px;
}

/* ---------- 响应式断点 ---------- */

/* 平板 768px */
@media (min-width: 768px) {
    .bc-menu-toggle {
        display: none;
    }

    .bc-nav {
        display: flex;
        position: static;
        flex-direction: row;
        gap: 26px;
        padding: 0;
        background: transparent;
        border-top: none;
    }

    .bc-nav a {
        padding: 6px 2px;
        border-bottom: none;
        font-size: 15px;
    }

    .bc-hero-inner {
        grid-template-columns: 1.05fr 0.95fr;
        gap: 44px;
        padding: 72px 32px 60px;
    }

    .bc-hero-title {
        font-size: 48px;
    }

    .bc-section {
        padding: 72px 0;
    }

    .bc-section-head h2 {
        font-size: 30px;
    }

    .bc-program-table {
        grid-template-columns: 1fr 1fr;
    }

    .bc-calendar-strip {
        grid-template-columns: repeat(2, 1fr);
    }

    .bc-game-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bc-analysis-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .bc-feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bc-review-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .bc-duty-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .bc-principle-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .bc-slot-strip {
        grid-template-columns: repeat(3, 1fr);
    }

    .bc-program-card {
        grid-template-columns: 300px 1fr;
    }

    .bc-headline {
        grid-template-columns: 1.1fr 1fr;
    }

    .bc-service-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .bc-steps {
        grid-template-columns: repeat(4, 1fr);
    }

    .bc-desk-board {
        grid-template-columns: repeat(3, 1fr);
    }

    .bc-quick-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .bc-footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr 1fr;
    }
}

/* 桌面 1440px */
@media (min-width: 1440px) {
    .bc-hero-title {
        font-size: 58px;
    }

    .bc-hero-sub {
        font-size: 18px;
    }

    .bc-hero-photo img {
        aspect-ratio: 4 / 3;
    }

    .bc-section {
        padding: 88px 0;
    }

    .bc-section-head h2 {
        font-size: 34px;
    }

    .bc-calendar-strip {
        grid-template-columns: repeat(4, 1fr);
    }

    .bc-game-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .bc-roster-grid {
        grid-template-columns: repeat(2, minmax(0, 420px));
    }

    .bc-feature-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .bc-principle-list {
        grid-template-columns: repeat(4, 1fr);
    }

    .bc-dock {
        padding: 54px 40px;
    }

    .bc-dock h2 {
        font-size: 34px;
    }
}