:root {
    /* 扁平高端配色方案 */
    --color-primary: #8b0000; /* 暗红色 */
    --color-accent: #A97C42;  /* 柔和的金色/青铜色 */
    --color-neutral-100: #F5F7F9; /* 浅灰色背景 */
    --color-neutral-200: #E7ECF0;
    --color-neutral-300: #C2C8CF;
    --color-neutral-400: #9AA1A8;
    --color-neutral-600: #5D6A75;
    --color-neutral-900: #1A1A1A; /* 柔和的炭黑 */
    --color-white: #fff;
    --color-black: #000;

    /* 修改：略带圆角 */
    --radius-md: 8px;
    --shadow-1: none;
    --container: 1280px;
    --g-8: 8px; --g-16: 16px; --g-24: 24px; --g-32: 32px; --g-48: 48px;
    font-family: "Noto Sans SC", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}

/* 重置与通用样式 */
* { box-sizing: border-box; }
html, body, #app { height: 100%; }
body { margin: 0; color: var(--color-neutral-900); background: var(--color-neutral-100); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; line-height: 1.6; font-size: 16px; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* Header */
header.site-header { width: 100%; background: var(--color-white); border-bottom: 1px solid var(--color-neutral-200); position: sticky; top: 0; z-index: 100; }
.site-top { height: 72px; display: flex; align-items: center; justify-content: space-between; position: relative; }
.brand { display: flex; align-items: center; }
.brand .logo { width: 44px; height: 44px; border-radius: var(--radius-md); background: var(--color-neutral-900); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 18px; }
.brand .name { font-weight: 700; font-size: 18px; color: var(--color-neutral-900); }
nav.main-nav { display: flex; align-items: center; gap: 28px; font-size: 15px; font-weight: 600; }
nav.main-nav a:hover { color: var(--color-primary); }

/* 下拉菜单样式优化 */
.nav-dropdown { position: relative; }
.nav-dropdown .menu {
    position: absolute;
    left: 0;
    top: 100%;
    width: 300px;
    background: #fff;
    border: 1px solid var(--color-neutral-200);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1); /* 增加阴影 */
    padding: 0;
    border-radius: var(--radius-md);
    display: none;
    opacity: 0;
    transform: translateY(5px);
    transition: 0.2s;
}
.nav-dropdown:hover .menu, .nav-dropdown.active .menu { display: block; opacity: 1; transform: translateY(0); }
.nav-dropdown .menu ul { list-style: none; padding: 0; margin: 0; line-height: 1.8; }
.nav-dropdown .menu .menu-item { padding: 0; transition: background-color 0.2s; cursor: pointer; }
.nav-dropdown .menu .menu-item:hover { background-color: var(--color-neutral-200); }
.nav-dropdown .menu .menu-item:hover .title,
.nav-dropdown .menu .menu-item:hover .desc { color: var(--color-primary); }
.nav-dropdown .menu .menu-item a { display: block; padding: 8px 12px; }
.menu-item .title { font-weight: 700; color: var(--color-neutral-900); }
.menu-item .desc { font-size: 13px; color: var(--color-neutral-600); margin-top: 2px; }

/* Header Actions */
.header-actions { display: flex; align-items: center; gap: 12px; }
.search-btn {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
}
.btn { padding: 10px 16px; border-radius: var(--radius-md); border: 1px solid transparent; cursor: pointer; font-weight: 600; transition: transform 0.2s; }
.btn:hover { transform: translateY(-2px); }
.btn-outline { background: transparent; border-color: var(--color-primary); color: var(--color-primary); }
.btn-primary { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }

/* 语言切换下拉按钮样式 */
.lang-dropdown { position: relative; }
.lang-dropdown .dropdown-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    background: transparent;
    border: none;
    padding: 10px 16px;
    cursor: pointer;
    border-radius: var(--radius-md);
    font-weight: 600;
}
.lang-dropdown .dropdown-btn:hover {
    background: var(--color-neutral-200);
}
.lang-dropdown-menu {
    position: absolute;
    top: calc(100% + 5px);
    right: 0;
    background: var(--color-white);
    border: 1px solid var(--color-neutral-200);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1); /* 增加阴影 */
    border-radius: var(--radius-md);
    min-width: 120px;
    z-index: 10;
    display: none;
    opacity: 0;
    transform: translateY(5px);
    transition: opacity 0.2s, transform 0.2s;
    list-style: none;
    margin: 0;
    padding: 8px 0;
}
.lang-dropdown.active .lang-dropdown-menu { display: block; opacity: 1; transform: translateY(0); }
.lang-dropdown-menu li a {
    display: block;
    padding: 8px 16px;
    transition: background-color 0.2s;
}
.lang-dropdown-menu li a:hover {
    background-color: var(--color-neutral-200);
    color: var(--color-primary);
}

/* 搜索弹窗样式 */
.search-modal-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}
.search-modal-container.visible {
    opacity: 1;
    pointer-events: auto;
}
.search-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
}
.search-modal {
    position: relative;
    z-index: 1;
    width: 90%;
    max-width: 600px;
    background: var(--color-white);
    border: 1px solid var(--color-neutral-200);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 24px;
    border-radius: var(--radius-md);
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.search-modal-container.visible .search-modal {
    transform: scale(1);
}
.search-modal-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-neutral-600);
}
.search-modal input {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
    border: 1px solid var(--color-neutral-300);
    border-radius: var(--radius-md);
    transition: border-color 0.2s;
}
.search-modal input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.announcement { background: var(--color-neutral-200); text-align: center; padding: 8px 0; color: var(--color-neutral-900); font-weight: 600; }

/* Hero */
.hero { background: var(--color-neutral-100); padding: 48px 0; }
.hero-inner {
    display: flex;
    gap: 32px;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.hero-left {
    flex: none;
    max-width: 800px;
    width: 100%;
}
.hero-title { font-size: 40px; font-weight: 800; margin: 0 0 12px; color: var(--color-neutral-900); letter-spacing: -0.5px; }
.hero-sub { color: var(--color-neutral-600); font-size: 18px; margin: 0 0 18px; }
.hero-ctas { display: flex; gap: 12px; justify-content: center; }

/* Sections */
.section { padding: 40px 0; }
.section h2 { font-size: 22px; margin: 0; font-weight: 700; }
.series-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 16px; }
/* 修改：增加圆角和悬浮动态感 */
.series-card {
    background: #fff;
    border: 1px solid var(--color-neutral-200);
    border-radius: var(--radius-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}
.series-card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    transform: translateY(-5px);
}
/* 修改: 图片与卡片边缘对齐 */
.series-card .cover {
    height: 160px;
    background-size: cover;
    background-position: center;
    border-top-left-radius: var(--radius-md);
    border-top-right-radius: var(--radius-md);
}
.series-card-content {
    padding: 12px;
}
.controls { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.controls label { font-size: 14px; color: var(--color-neutral-600); }

/* 最新文章网格样式 - 优化版 */
.content-grid {
    display: grid;
    grid-template-columns: 224px 1fr 1fr 1fr;
    grid-template-rows: repeat(2, minmax(200px, 1fr));
    gap: 18px;
    margin-top: 18px;
}

/* 新增的标签侧边栏样式 */
.tag-sidebar {
    grid-column: 1 / 2;
    grid-row: span 2;
    background: #fff;
    border: 1px solid var(--color-neutral-200);
    padding: 16px;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
}
.tag-sidebar h4 {
    margin: 0 0 12px;
    font-size: 16px;
    font-weight: 700;
}
.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.tag {
    padding: 6px 10px;
    background: var(--color-neutral-100);
    border: 1px solid var(--color-neutral-200);
    border-radius: var(--radius-md);
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s;
}
.tag:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}
.card-container {
    grid-column: 2 / 5;
    grid-row: span 2;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.card {
    background: #fff;
    border: 1px solid var(--color-neutral-200);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}
.card .cover { height: 160px; background: #eee; background-size: cover; background-position: center; position: relative; }
.card .label { position: absolute; left: 10px; top: 10px; background: var(--color-primary); color: var(--color-white); padding: 4px 6px; border-radius: var(--radius-md); font-size: 12px; font-weight: 700; }
.card .body { padding: 12px; flex: 1; display: flex; flex-direction: column; }
.card h4 { margin: 0; font-size: 15px; font-weight: 700; line-height: 1.2; }
.card p.summary { margin: 8px 0 0; color: var(--color-neutral-600); font-size: 13px; flex: 1; }
.card .meta { display: flex; align-items: center; justify-content: space-between; font-size: 12px; color: var(--color-neutral-400); margin-top: 12px; }
.pagination { display: flex; align-items: center; gap: 8px; justify-content: center; margin-top: 18px; }
.pagebtn { padding: 8px 12px; border: 1px solid var(--color-neutral-300); border-radius: var(--radius-md); cursor: pointer; background: #fff; }
.pagebtn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Panorama */
.panorama { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; }
.graph-placeholder { height: 360px; border-radius: var(--radius-md); border: 1px dashed var(--color-neutral-300); display: flex; align-items: center; justify-content: center; color: var(--color-neutral-400); background: var(--color-neutral-100); }

/* IP Banner */
.ip-banner { padding: 18px 0; border-top: 1px solid var(--color-neutral-200); border-bottom: 1px solid var(--color-neutral-200); display: flex; align-items: center; justify-content: space-between; background: var(--color-neutral-100); }
.ip-banner a { color: var(--color-primary); }

/* Footer */
footer.site-footer { background: var(--color-neutral-900); color: var(--color-white); padding: 16px 0; margin-top: 14px; }
.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
}
.footer-left {
    flex-basis: 30%;
    min-width: 200px;
    margin-bottom: 16px;
}
.footer-spacer {
    flex-basis: 10%;
}
.footer-right {
    flex-basis: 60%;
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
    justify-content: flex-end;
    min-width: 200px;
}
.footer-grid h5 { margin: 0 0 8px; font-weight: 700; color: var(--color-white); }
.footer-grid p, .footer-grid li { color: #d0d0d0; font-size: 14px; margin: 0; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.06); padding-top: 3px; margin-top: 3px; text-align: center; color: #bfbfbf; font-size: 13px; }
.footer-compliance { display: flex; justify-content: center; gap: 16px; margin-top: 6px; font-size: 13px; color: #bfbfbf; flex-wrap: wrap; }
.footer-compliance .police-link {
    display: flex;
    align-items: center;
    white-space: nowrap;
}
.footer-compliance .police-link img {
    display: block;
    height: 16px;
    width: 16px;
    margin-right: 4px;
}
.footer-grid a {
    color: #d0d0d0;
    transition: color 0.2s ease-in-out;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: color 0.2s, border-bottom-color 0.2s;
}
.footer-grid a:hover {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* Mobile */
.hamburger { display: none; flex-direction: column; gap: 4px; cursor: pointer; }
.hamburger span { display: block; width: 24px; height: 3px; background: var(--color-neutral-900); border-radius: 2px; }
@media (max-width: 1024px) {
    .series-grid { grid-template-columns: repeat(2, 1fr); }
    .content-grid {
        grid-template-columns: 1fr;
    }
    .tag-sidebar {
        grid-row: auto;
        height: auto;
        margin-bottom: 18px;
    }
    .card-container {
        grid-column: auto;
        grid-row: auto;
        grid-template-columns: repeat(2, 1fr);
    }
    .panorama { grid-template-columns: 1fr; }
    .hero-inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .hero-ctas {
        justify-content: center;
    }
}
@media (max-width: 768px) {
    nav.main-nav { display: none; position: absolute; top: 64px; left: 0; width: 100%; background: #fff; flex-direction: column; gap: 0; border-top: 1px solid var(--color-neutral-200); padding: 12px 0; box-shadow: none; }
    nav.main-nav.active { display: flex; }
    nav.main-nav a { padding: 12px 24px; border-bottom: 1px solid var(--color-neutral-200); }
    .hamburger { display: flex; }
    .site-top { height: 64px; padding: 0 12px; }
    .hero-inner { flex-direction: column; align-items: center; }
    .series-grid { grid-template-columns: 1fr; }
    .card-container {
        grid-template-columns: 1fr;
    }
    .container { padding-left: 12px; padding-right: 12px; }

    .nav-dropdown .menu {
        position: static;
        width: 100%;
        border: none;
        box-shadow: none;
        padding: 0;
    }
    .nav-dropdown .menu ul {
        flex-direction: column;
    }
    .nav-dropdown .menu .menu-item a {
        padding: 12px 24px;
        border-bottom: 1px solid var(--color-neutral-200);
    }
    .nav-dropdown .menu .menu-item:last-child a { border-bottom: none; }
    .header-actions { flex-direction: row; align-items: center; flex-wrap: wrap; gap: 8px; }
    .lang-dropdown { width: auto; text-align: right; }
    .footer-grid { flex-direction: column; align-items: flex-start; gap: 24px; }
    .footer-left, .footer-right, .footer-spacer {
        flex-basis: 100%;
    }
    .footer-right { justify-content: flex-start !important; flex-direction: column; gap: 16px !important; }
}
@media (max-width: 480px) {
    .card-container {
        grid-template-columns: 1fr;
    }
    .brand .name { }
    .hero-title { font-size: 28px; }
    .series-card .cover { height: 140px; }
}

/* Utility */
.muted { color: var(--color-neutral-600); }
.text-sm { font-size: 13px; }
.badge-free { background: #fff; border: 1px solid var(--color-neutral-300); padding: 4px 6px; border-radius: var(--radius-md); font-weight: 700; }
.chip { font-size: 12px; padding: 6px 8px; border-radius: var(--radius-md); background: var(--color-neutral-200); display: inline-block; }
.show-focus *:focus { outline: 2px solid var(--color-primary); outline-offset: 2px; }