/* ==================== 设计系统：全站唯一变量 ==================== */
:root {
    /* —— 品牌色 —— */
    --brand: #2e8f7b;
    --brand-strong: #216d5e;
    --brand-soft: #e2f3ed;
    --accent: #d99a36;

    /* —— 表面 / 背景 —— */
    --body-bg: #f8fafc;
    --surface: rgba(255, 255, 255, 0.94);
    --surface-raised: #ffffff;
    --surface-muted: #f2f6f5;

    /* —— 文字 —— */
    --ink: #172522;
    --ink-muted: #61716c;

    /* —— 边框 / 分隔 —— */
    --line: #dbe7e3;

    /* —— 焦点 / 阴影 —— */
    --focus-ring: rgba(46, 143, 123, 0.22);
    --shadow-color: rgba(0, 0, 0, 0.12);
    --shadow-sm: 0 2px 8px rgba(21, 45, 38, 0.06);
    --shadow-md: 0 14px 36px rgba(21, 45, 38, 0.10);

    /* —— 圆角 —— */
    --radius-sm: 0.625rem;
    --radius-md: 1rem;
    --radius-lg: 1.375rem;

    /* —— 蒙版 / 弹窗 —— */
    --overlay-opacity: 0.68;
    --overlay-bg: rgba(0, 0, 0, 0.15);

    /* —— 相册 hero —— */
    --hero-bg-start: #f5f7fa;
    --hero-bg-end: #c3cfe2;

    /* —— 上传区 —— */
    --upload-border: #adb5bd;
    --upload-bg: #f8f9fa;
    --upload-hover-bg: #ffffff;
    --upload-hover-border: #495057;
    --upload-text: #6c757d;
}

[data-bs-theme="dark"] {
    /* —— 品牌色 —— */
    --brand: #63c7ad;
    --brand-strong: #8adbc6;
    --brand-soft: rgba(99, 199, 173, 0.14);
    --accent: #f0bd67;

    /* —— 表面 / 背景 —— */
    --body-bg: #0f172a;
    --surface: rgba(24, 40, 36, 0.94);
    --surface-raised: #1d302c;
    --surface-muted: #172622;

    /* —— 文字 —— */
    --ink: #e5f1ed;
    --ink-muted: #aabdb7;

    /* —— 边框 / 分隔 —— */
    --line: #345049;

    /* —— 焦点 / 阴影 —— */
    --focus-ring: rgba(99, 199, 173, 0.25);
    --shadow-color: rgba(0, 0, 0, 0.6);
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.20);
    --shadow-md: 0 16px 40px rgba(0, 0, 0, 0.30);

    /* —— 圆角（继承 :root，无需重定义）—— */

    /* —— 蒙版 / 弹窗 —— */
    --overlay-opacity: 0.85;
    --overlay-bg: rgba(0, 0, 0, 0.45);

    /* —— 相册 hero —— */
    --hero-bg-start: #0f172a;
    --hero-bg-end: #1e293b;

    /* —— 上传区 —— */
    --upload-border: #4b5563;
    --upload-bg: #1e293b;
    --upload-hover-bg: #334155;
    --upload-hover-border: #6b7280;
    --upload-text: #9ca3af;
}

/* ==================== 基础全局 ==================== */
html,
body {
    background-color: var(--body-bg);
    color: var(--ink);
    transition: background-color 0.4s, color 0.4s;
}

body {
    background: url("/static/background.webp") no-repeat center/cover fixed;
    min-height: 100vh;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, var(--overlay-opacity));
    pointer-events: none;
    z-index: -1;
    transition: background 0.4s;
}

/* ==================== 标题（h1~h4 + 自定义标题） ==================== */
h1,
h2,
h3,
h4,
h5,
.form-title,
.manage-title,
.rules-title,
.game-title,
.center-title,
.section-title,
.thankyou-title,
.success-title,
.news-title a,
.game-link,
.rule-link,
.list-item-link {
    color: var(--ink);
    font-weight: 700;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    transition: color 0.4s;
}

/* ==================== 链接 ==================== */
a,
.nav-link,
.rule-link,
.news-title a,
.game-link,
.list-item-link,
.video-link {
    color: var(--brand-strong);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover,
.nav-link:hover,
.rule-link:hover,
.news-title a:hover,
.game-link:hover,
.list-item-link:hover,
.video-link:hover {
    color: var(--brand);
    text-decoration: underline;
}

/* ==================== 卡片 hover 抬升（通用） ==================== */
.card,
.news-card,
.game-card,
.rule-card,
.version-card,
.boss-card,
.list-item-card {
    transition: all 0.3s ease;
}

.news-img {
    width: 100%;
    /* 占满卡片宽度 */
    height: 200px;
    /* 统一高度，根据你的设计调整这个值，例如 180px、220px、250px */
    object-fit: cover;
    /* 保持比例，裁剪多余部分（你已经有了） */
    border-radius: 0.5rem 0.5rem 0 0;
    /* 可选：让图片顶部圆角，更美观 */
    display: block;
    /* 防止底部有小间隙 */
}

.boss-img {
    height: 100px;
    /* 统一高度，根据你的设计调整这个值，例如 180px、220px、250px */
    object-fit: cover;
    /* 保持比例，裁剪多余部分（你已经有了） */
    border-radius: 0.5rem 0.5rem 0 0;
    /* 可选：让图片顶部圆角，更美观 */
    display: block;
    /* 防止底部有小间隙 */
}

/* ==================== 图片 & 徽章 ==================== */
.img-wrapper {
    position: relative;
    display: inline-block;
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 0.375rem;
    overflow: hidden;
    margin: 0 0.25rem;
}

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

.img-badge {
    position: absolute;
    bottom: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    font-size: 0.65rem;
    padding: 0.1rem 0.1rem;
    border-radius: 0.25rem 0 0.25rem 0;
}

/* 品级/精炼背景（通用） */
.bg-grade-5,
.bg-rank-5 {
    background-color: rgba(171, 117, 70, 0.9);
}

.bg-grade-4,
.bg-rank-4 {
    background-color: rgba(128, 104, 167, 0.9);
}

.bg-rank-3 {
    background-color: rgba(108, 156, 179, 0.9);
}

.bg-rank-2 {
    background-color: rgba(92, 133, 103, 0.9);
}

.bg-rank-1 {
    background-color: rgba(121, 133, 143, 0.9);
}

/* 排名徽章（金银铜） */
.rank-gold {
    background-color: gold !important;
    color: black !important;
}

.rank-silver {
    background-color: silver !important;
    color: black !important;
}

.rank-bronze {
    background-color: #cd7f32 !important;
    color: black !important;
}

/* ==================== 消息展开（通用） ==================== */
.message-text {
    line-height: 1.6;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    /* 自动第3行加 ... */
    max-height: calc(1.6em * 3 + 8px);
    transition: all 0.35s ease;
    word-break: break-all;
}

.message-text.expanded {
    display: block !important;
    -webkit-line-clamp: unset !important;
    -webkit-box-orient: unset !important;
    max-height: none !important;
    overflow: visible !important;
}

.toggle-btn {
    color: var(--brand-strong);
    cursor: pointer;
    font-size: 0.85rem;
    margin-left: 0.5rem;
    transition: color 0.2s;
}

.toggle-btn:hover {
    color: var(--brand);
}

/* ==================== 表格通用 ==================== */
.table td {
    height: auto !important;
    vertical-align: top !important;
}

.table td img {
    border-radius: 0.375rem;
    object-fit: cover;
    max-height: 60px;
}

.table-dark {
    --bs-table-bg: #0f172a;
    --bs-table-color: #e2e8f0;
    --bs-table-border-color: #334155;
}

/* ==================== 按钮通用 ==================== */
.btn-submit-result {
    background: linear-gradient(135deg, #ff7e5f, #feb47b);
    border: none;
    font-weight: bold;
    box-shadow: 0 4px 12px rgba(255, 126, 95, 0.4);
    transition: all 0.25s;
}

.btn-submit-result:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 126, 95, 0.5);
}

/* ==================== 弹窗 ==================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1050;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.modal-overlay.open {
    display: flex;
    opacity: 1;
}

.popup_modal {
    background: var(--body-bg);
    color: var(--ink);
    padding: 1.5rem;
    border-radius: 0.75rem;
    max-width: 300px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    position: relative;
    font-size: 1rem;
}

.popup_modal h2 {
    font-size: 1.35rem;
    margin-bottom: 1rem;
    text-align: center;
    word-break: break-word;
}

.popup_modal p {
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.popup_modal img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== Footer 全局样式 ==================== */
footer {
    background: var(--surface-raised) !important;
    color: var(--ink-muted);
    border-top: 1px solid var(--line);
    transition: background 0.4s, color 0.4s;
}

footer a {
    color: var(--ink-muted);
    transition: color 0.2s;
}

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

.footer-website-title {
    color: var(--ink);
}

.footer-message {
    color: var(--ink-muted);
    opacity: 0.85;
}

/* Footer 图标（QQ、B站等） */
.footer-icon {
    transition: transform 0.3s;
}

.footer-icon:hover {
    transform: scale(1.15);
}

html {
    scroll-behavior: smooth;
}

body.site-shell {
    background-color: var(--body-bg);
    background-image: linear-gradient(135deg, rgba(12, 32, 27, 0.73), rgba(23, 64, 53, 0.54)), url("/static/background.webp");
    background-position: center;
    background-size: cover;
    font-family: "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    line-height: 1.65;
}

body.site-shell::before {
    background: rgba(7, 22, 18, 0.13);
}

[data-bs-theme="dark"] body.site-shell::before {
    background: rgba(4, 13, 11, 0.46);
}

body.site-shell :is(h1, h2, h3, h4, h5, h6) {
    color: var(--ink);
    letter-spacing: -0.02em;
    text-shadow: none;
}

body.site-shell :is(p, .text-muted, .form-text) {
    color: var(--ink-muted) !important;
}

.site-main {
    max-width: 1240px;
    padding: clamp(1.25rem, 2.6vw, 2.5rem);
    background: var(--surface) !important;
    border: 1px solid var(--line) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-md) !important;
    backdrop-filter: blur(14px);
}

.site-navbar {
    min-height: 76px;
    background: color-mix(in srgb, var(--surface-raised) 92%, transparent) !important;
    border-bottom: 1px solid var(--line) !important;
    box-shadow: var(--shadow-sm) !important;
    backdrop-filter: blur(14px);
}

.site-navbar .navbar-brand {
    padding: 0;
    margin-right: 1.75rem;
}

.site-navbar .navbar-brand img {
    filter: none;
    max-width: 156px;
    height: 48px;
    object-fit: contain;
}

.site-navbar .nav-link {
    position: relative;
    padding: 0.6rem 0.8rem !important;
    color: var(--ink) !important;
    font-size: 0.93rem;
    font-weight: 650;
    text-decoration: none !important;
}

.site-navbar .nav-link::after {
    content: "";
    position: absolute;
    right: 0.8rem;
    bottom: 0.25rem;
    left: 0.8rem;
    height: 2px;
    border-radius: 99px;
    background: var(--brand);
    transform: scaleX(0);
    transition: transform 180ms ease;
}

.site-navbar .nav-link:hover,
.site-navbar .nav-link.active {
    color: var(--brand-strong) !important;
}

.site-navbar .nav-link:hover::after,
.site-navbar .nav-link.active::after {
    transform: scaleX(1);
}

.site-navbar .nav-link.active {
    border-bottom: 0;
}

.site-navbar .navbar-toggler {
    border-color: var(--line);
    box-shadow: none;
}

.site-navbar .navbar-toggler:focus {
    box-shadow: 0 0 0 0.22rem var(--focus-ring);
}

.site-navbar .navbar-toggler-icon {
    filter: none;
}

.site-nav-actions > a img {
    transition: transform 180ms ease, box-shadow 180ms ease;
}

.site-nav-actions > a:hover img {
    transform: translateY(-2px);
    box-shadow: 0 5px 14px rgba(21, 45, 38, 0.18) !important;
}

#theme-toggle {
    display: inline-grid;
    width: 2.5rem;
    height: 2.5rem;
    place-items: center;
    border: 1px solid var(--line) !important;
    border-radius: 50%;
    background: var(--surface-muted) !important;
    color: var(--brand-strong);
}

#theme-toggle:hover {
    transform: translateY(-2px);
    background: var(--brand-soft) !important;
}

[data-bs-theme="dark"] #theme-icon {
    color: #ffdd44;
}

main.content,
.card,
.news-card,
.game-card,
.rule-card,
.version-card,
.boss-card,
.list-item-card,
.form-container,
.form-wrapper,
.manage-container,
.rules-container,
.game-wrapper,
.message-container,
.thankyou-card,
.leaderboard-section,
.game-center-container,
.login-wrapper,
.scores-container,
.content-list-container,
.admin-panel-container {
    color: var(--ink);
    background: var(--surface-raised) !important;
    border: 1px solid var(--line) !important;
    border-radius: var(--radius-md) !important;
    box-shadow: var(--shadow-sm) !important;
    backdrop-filter: none;
    transition: all 0.4s;
}

.card:hover,
.news-card:hover,
.game-card:hover,
.rule-card:hover,
.version-card:hover,
.boss-card:hover,
.list-item-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md) !important;
}

.card-header,
.list-group-item {
    color: var(--ink);
    background: var(--surface-muted) !important;
    border-color: var(--line) !important;
}

.list-group-item.active {
    color: #fff !important;
    background: var(--brand) !important;
    border-color: var(--brand) !important;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    margin-bottom: 1.25rem;
    font-size: clamp(1.25rem, 2vw, 1.55rem);
}

.section-title::before {
    width: 4px;
    height: 1.35em;
    border-radius: 99px;
    background: var(--brand);
    content: "";
}

.btn {
    --bs-btn-font-weight: 650;
    border-radius: var(--radius-sm);
    padding: 0.55rem 1rem;
    transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:focus-visible {
    box-shadow: 0 0 0 0.24rem var(--focus-ring) !important;
}

.btn-primary,
.btn-success,
.btn-submit,
.btn-submit-result {
    --bs-btn-bg: var(--brand);
    --bs-btn-border-color: var(--brand);
    --bs-btn-hover-bg: var(--brand-strong);
    --bs-btn-hover-border-color: var(--brand-strong);
    --bs-btn-active-bg: var(--brand-strong);
    --bs-btn-active-border-color: var(--brand-strong);
    color: #fff !important;
    background: var(--brand) !important;
    border-color: var(--brand) !important;
    box-shadow: 0 4px 12px rgba(46, 143, 123, 0.22);
}

.btn-primary:hover,
.btn-success:hover,
.btn-submit:hover,
.btn-submit-result:hover {
    background: var(--brand-strong) !important;
    border-color: var(--brand-strong) !important;
    box-shadow: 0 7px 18px rgba(46, 143, 123, 0.28);
}

.btn-outline-primary {
    --bs-btn-color: var(--brand-strong);
    --bs-btn-border-color: var(--brand);
    --bs-btn-hover-bg: var(--brand);
    --bs-btn-hover-border-color: var(--brand);
    --bs-btn-hover-color: #fff;
}

.btn-outline-secondary {
    --bs-btn-color: var(--ink-muted);
    --bs-btn-border-color: var(--line);
    --bs-btn-hover-bg: var(--surface-muted);
    --bs-btn-hover-border-color: var(--line);
    --bs-btn-hover-color: var(--ink);
}

.form-label {
    margin-bottom: 0.45rem;
    color: var(--ink);
    font-size: 0.9rem;
    font-weight: 700;
}

.form-control,
.form-select {
    min-height: 2.7rem;
    color: var(--ink);
    background-color: var(--surface-raised);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    box-shadow: none;
}

.form-control::placeholder {
    color: var(--ink-muted);
    opacity: 0.7;
}

.form-control:focus,
.form-select:focus {
    color: var(--ink);
    background-color: var(--surface-raised);
    border-color: var(--brand);
    box-shadow: 0 0 0 0.24rem var(--focus-ring);
}

textarea.form-control {
    min-height: 7rem;
}

.form-check-input:checked {
    background-color: var(--brand);
    border-color: var(--brand);
}

.nav-tabs {
    gap: 0.25rem;
    border-bottom-color: var(--line);
}

.nav-tabs .nav-link {
    color: var(--ink-muted);
    border: 1px solid transparent;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.nav-tabs .nav-link:hover,
.nav-tabs .nav-link.active {
    color: var(--brand-strong);
    background: var(--brand-soft);
    border-color: var(--line) var(--line) transparent;
}

.table-responsive {
    overflow: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
}

.table {
    --bs-table-bg: var(--surface-raised);
    --bs-table-color: var(--ink);
    --bs-table-striped-bg: var(--surface-muted);
    --bs-table-striped-color: var(--ink);
    --bs-table-hover-bg: var(--brand-soft);
    --bs-table-hover-color: var(--ink);
    --bs-table-border-color: var(--line);
    margin-bottom: 0;
}

.table th {
    background: #1f4f44;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 1;
}

.alert {
    border-radius: var(--radius-md);
    border-width: 1px;
}

.site-friend-links {
    gap: 0.45rem 1rem;
    padding: 1rem clamp(1rem, 3vw, 2rem);
    background: color-mix(in srgb, var(--surface-raised) 88%, transparent) !important;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.site-friend-links a,
.site-footer a {
    color: var(--brand-strong);
}

.site-footer {
    margin-top: 0 !important;
    background: color-mix(in srgb, var(--surface-raised) 92%, transparent) !important;
}

@media (max-width: 991.98px) {
    .site-navbar .navbar-collapse {
        padding: 1rem 0 0.25rem;
    }

    .site-navbar .nav-link {
        padding-inline: 0 !important;
    }

    .site-navbar .nav-link::after {
        right: auto;
        left: 0;
        width: 2rem;
    }

    .site-nav-actions {
        padding-top: 1rem;
    }
}

@media (max-width: 767.98px) {
    .site-main {
        width: calc(100% - 1.25rem);
        margin-top: 0.75rem !important;
        margin-bottom: 1.25rem !important;
        padding: 1rem;
        border-radius: 1rem !important;
    }

    .site-navbar {
        min-height: 64px;
    }

    .site-navbar .navbar-brand img {
        height: 40px;
        max-width: 132px;
    }

    .container {
        --bs-gutter-x: 1rem;
    }

    .card-body {
        padding: 1rem;
    }

    .btn-lg {
        padding: 0.65rem 1.1rem;
        font-size: 1rem;
    }

    .section-title {
        margin-bottom: 1rem;
    }
}

/* 小屏适配（全局） */
@media (max-width: 768px) {

    .boss-img,
    .entry-img {
        width: 60px;
        height: 60px;
    }
}

/* ==================== 通用 hero 横幅（图库 / 联系我们共用） ==================== */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--hero-bg-start) 0%, var(--hero-bg-end) 100%);
    transition: background 0.4s ease;
}

.overlay {
    background: var(--overlay-bg);
    z-index: 1;
    pointer-events: none;
    transition: background 0.4s;
}

/* ==================== 首页 hero（首页 / 图库共用横幅） ==================== */
.home-hero {
    position: relative;
    isolation: isolate;
    min-height: min(31rem, 62vh);
    margin: -0.45rem -0.45rem 2.75rem;
    padding: clamp(3rem, 8vw, 6rem) clamp(1.5rem, 7vw, 6rem);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: calc(var(--radius-lg) - 0.2rem);
    color: #f7fffc;
    background: linear-gradient(120deg, rgba(13, 48, 40, 0.92), rgba(31, 112, 92, 0.72)), url("/static/background.webp") center / cover;
}

.home-hero::before,
.home-hero::after {
    position: absolute;
    z-index: -1;
    border-radius: 50%;
    content: "";
}

.home-hero::before {
    top: -11rem;
    right: -7rem;
    width: 26rem;
    height: 26rem;
    background: rgba(127, 225, 197, 0.16);
    filter: blur(1px);
}

.home-hero::after {
    bottom: -12rem;
    left: -7rem;
    width: 25rem;
    height: 25rem;
    background: rgba(242, 190, 95, 0.12);
}

.home-hero h1 {
    max-width: 16ch;
    margin: 0;
    color: #fff !important;
    font-size: clamp(2.35rem, 5.3vw, 4.6rem);
    font-weight: 800;
    letter-spacing: -0.055em;
}

.home-hero-copy {
    max-width: 45rem;
    margin: 1.4rem auto 0 !important;
    color: rgba(247, 255, 252, 0.82) !important;
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    line-height: 1.9;
}

.home-hero-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 2rem;
}

.home-hero .btn-primary {
    background: #f8fffc !important;
    border-color: #f8fffc !important;
    color: #1b5f50 !important;
}

.home-hero .btn-outline-primary {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.65);
}

.home-hero .btn-outline-primary:hover {
    color: #1b5f50;
    background: #fff;
    border-color: #fff;
}

@media (max-width: 767.98px) {
    .home-hero {
        min-height: 0;
        margin: -0.15rem -0.15rem 2rem;
        padding: 3.5rem 1.25rem;
    }

    .home-hero-actions {
        width: 100%;
    }

    .home-hero-actions .btn {
        flex: 1 1 12rem;
    }
}