:root {
    --bg: #f7f4ee;
    --text: #17202a;
    --muted: #68727d;
    --line: #e1ddd4;
    --panel: #ffffff;
    --accent: #0f766e;
    --accent-strong: #115e59;
    --gold: #d97706;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.6;
}

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

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

input,
select,
textarea,
button {
    font: inherit;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 18px clamp(20px, 5vw, 72px);
    border-bottom: 1px solid rgba(23, 32, 42, .08);
    background: rgba(247, 244, 238, .9);
    backdrop-filter: blur(14px);
}

.brand,
.admin-brand {
    font-weight: 800;
    letter-spacing: 0;
}

.site-header nav {
    display: flex;
    gap: 22px;
    color: var(--muted);
}

.hero {
    min-height: 520px;
    display: flex;
    align-items: center;
    padding: 84px clamp(20px, 5vw, 72px);
    background:
        linear-gradient(100deg, rgba(23, 32, 42, .88), rgba(15, 118, 110, .62)),
        url("placeholder.svg") center / cover;
    color: #fff;
}

.hero > div {
    max-width: 780px;
}

.hero p,
.page-head p,
.kicker {
    margin: 0 0 12px;
    color: var(--gold);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0;
}

.hero h1 {
    margin: 0;
    font-size: clamp(42px, 7vw, 82px);
    line-height: 1.04;
}

.hero-copy {
    max-width: 620px;
    margin-top: 24px;
    color: rgba(255, 255, 255, .84);
    font-size: 19px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    margin-top: 34px;
    flex-wrap: wrap;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 9px 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    cursor: pointer;
}

.button.primary {
    border-color: var(--accent);
    background: var(--accent);
    color: #fff;
}

.container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.section {
    padding: 56px 0;
}

.section-head,
.admin-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 22px;
}

.section-head h2,
.admin-title h1 {
    margin: 0;
}

.section-head a {
    color: var(--accent-strong);
    font-weight: 700;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.case-card {
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
}

.case-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

.case-card span {
    display: block;
    margin: 18px 18px 4px;
    color: var(--accent-strong);
    font-weight: 800;
    font-size: 13px;
}

.case-card h2,
.case-card h3 {
    margin: 0 18px 8px;
    font-size: 21px;
    line-height: 1.3;
}

.case-card p {
    margin: 0 18px 20px;
    color: var(--muted);
}

.page-head {
    padding: 54px 0 20px;
}

.page-head h1,
.detail h1 {
    margin: 0;
    font-size: clamp(36px, 5vw, 62px);
    line-height: 1.1;
}

.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 26px;
}

.filters a {
    padding: 8px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff;
    color: var(--muted);
}

.filters a.active {
    border-color: var(--accent);
    background: var(--accent);
    color: #fff;
}

.article-list {
    display: grid;
    gap: 14px;
}

.article-row {
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}

.article-row p {
    margin: 0 0 8px;
    color: var(--accent-strong);
    font-weight: 700;
}

.article-row h2,
.article-row h3 {
    margin: 0 0 8px;
    line-height: 1.3;
}

.article-row div {
    color: var(--muted);
}

.detail {
    padding: 56px 0 80px;
}

.detail-cover {
    width: 100%;
    max-height: 560px;
    object-fit: cover;
    margin: 28px 0;
    border-radius: 8px;
}

.summary {
    max-width: 820px;
    color: var(--muted);
    font-size: 19px;
}

.meta-panel {
    display: grid;
    gap: 8px;
    margin: 28px 0;
    padding: 20px;
    border-left: 4px solid var(--accent);
    background: #fff;
}

.meta-panel p {
    margin: 0;
}

.meta-panel a {
    color: var(--accent-strong);
    font-weight: 700;
}

.prose {
    max-width: 860px;
    font-size: 18px;
}

.gallery {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 34px;
}

.gallery img {
    width: 100%;
    border-radius: 8px;
}

.site-footer {
    padding: 34px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    text-align: center;
}

.install-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 20px;
}

.auth-box {
    width: min(460px, 100%);
    padding: 30px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}

.auth-box h1 {
    margin-top: 0;
}

.form-stack,
.admin-form {
    display: grid;
    gap: 16px;
}

label {
    display: grid;
    gap: 7px;
    color: #334155;
    font-weight: 700;
}

input,
select,
textarea {
    width: 100%;
    min-height: 42px;
    padding: 9px 11px;
    border: 1px solid #d5dbe3;
    border-radius: 8px;
    background: #fff;
    color: var(--text);
}

textarea {
    resize: vertical;
}

.notice {
    padding: 12px 14px;
    border-radius: 8px;
    background: #ecfdf5;
    color: #065f46;
}

.notice.danger {
    background: #fef2f2;
    color: #991b1b;
}

.admin-body {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    background: #f5f7f8;
}

.admin-sidebar {
    padding: 22px;
    background: #17202a;
    color: #fff;
}

.admin-sidebar nav {
    display: grid;
    gap: 8px;
    margin-top: 26px;
}

.admin-sidebar nav a {
    padding: 10px 12px;
    border-radius: 8px;
    color: rgba(255, 255, 255, .78);
}

.admin-sidebar nav a:hover {
    background: rgba(255, 255, 255, .08);
    color: #fff;
}

.admin-main {
    padding: 28px;
}

.admin-panel {
    margin-bottom: 22px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}

.admin-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.admin-form .full,
.admin-form .check {
    grid-column: 1 / -1;
}

.admin-form .check {
    display: flex;
    align-items: center;
    gap: 8px;
}

.admin-form .check input {
    width: auto;
    min-height: 0;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 12px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

.admin-table th {
    color: #475569;
}

.actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.actions a,
.actions button {
    border: 0;
    background: none;
    color: var(--accent-strong);
    cursor: pointer;
    padding: 0;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 22px;
}

.stat-grid div {
    padding: 24px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}

.stat-grid strong {
    display: block;
    font-size: 38px;
}

.stat-grid span {
    color: var(--muted);
}

@media (max-width: 860px) {
    .case-grid,
    .gallery,
    .stat-grid {
        grid-template-columns: 1fr;
    }

    .site-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .admin-body {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        position: static;
    }

    .admin-sidebar nav {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-form {
        grid-template-columns: 1fr;
    }
}