:root {
    color-scheme: light;
    --ink: #172033;
    --ink-2: #253247;
    --muted: #667085;
    --paper: #f7f9fb;
    --surface: #ffffff;
    --line: #d8dee8;
    --teal: #0f766e;
    --blue: #2563eb;
    --coral: #d1495b;
    --amber: #f2a541;
    --green: #15803d;
    --shadow: 0 18px 55px rgba(23, 32, 51, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--paper);
    color: var(--ink);
    font-family: "Inter", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
    letter-spacing: 0;
}

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

button,
input,
textarea {
    font: inherit;
}

button {
    cursor: pointer;
}

.container {
    width: min(1160px, calc(100% - 36px));
    margin-inline: auto;
}

.site-shell {
    min-height: 100vh;
}

.site-header {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 30;
    border-bottom: 1px solid rgba(255, 255, 255, 0.22);
    background: rgba(16, 24, 40, 0.76);
    color: #ffffff;
    backdrop-filter: blur(16px);
}

.site-nav {
    display: flex;
    min-height: 66px;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand,
.admin-brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    font-weight: 800;
}

.brand span:last-child,
.admin-brand span:last-child {
    display: grid;
    gap: 1px;
}

.brand small,
.admin-brand small {
    color: rgba(255, 255, 255, 0.62);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.brand-mark {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.22);
    background: rgba(15, 118, 110, 0.9);
    color: #ffffff;
    font-size: 13px;
    font-weight: 900;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-links a {
    border: 1px solid transparent;
    padding: 8px 11px;
    color: rgba(255, 255, 255, 0.72);
    font-size: 14px;
    font-weight: 750;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
    border-color: rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.hero-stage {
    position: relative;
    min-height: 92vh;
    overflow: hidden;
    background: #101828;
    color: #ffffff;
}

.hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.52;
    filter: saturate(1.08) contrast(1.05);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(16, 24, 40, 0.96), rgba(16, 24, 40, 0.74) 50%, rgba(16, 24, 40, 0.2)),
        linear-gradient(180deg, rgba(16, 24, 40, 0.58), rgba(16, 24, 40, 0.92));
}

.hero-inner {
    position: relative;
    display: grid;
    min-height: 92vh;
    grid-template-columns: minmax(0, 1fr) 360px;
    align-items: center;
    gap: 52px;
    padding: 110px 0 92px;
}

.hero-copy {
    max-width: 760px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--coral);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
}

.eyebrow::before {
    content: "";
    width: 28px;
    height: 2px;
    background: currentColor;
}

.hero-copy h1,
.page-title {
    margin: 16px 0 18px;
    max-width: 820px;
    font-size: clamp(42px, 6vw, 86px);
    font-weight: 920;
    line-height: 1;
}

.hero-copy p,
.lead {
    max-width: 720px;
    color: rgba(255, 255, 255, 0.78);
    font-size: 18px;
    line-height: 1.75;
}

.hero-copy .hero-lead {
    color: #ffffff;
    font-size: 23px;
}

.hero-actions,
.tool-actions,
.form-actions,
.card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.button {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(23, 32, 51, 0.16);
    border-radius: 6px;
    padding: 9px 15px;
    background: #ffffff;
    color: var(--ink);
    font-weight: 800;
}

.button.primary {
    border-color: var(--teal);
    background: var(--teal);
    color: #ffffff;
}

.button.light {
    border-color: rgba(255, 255, 255, 0.28);
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
}

.button.ghost {
    background: transparent;
}

.button.compact {
    min-height: 36px;
    padding: 7px 11px;
    font-size: 13px;
}

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

.runtime-panel {
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 8px;
    background: rgba(16, 24, 40, 0.72);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.panel-top {
    display: flex;
    min-height: 48px;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
    padding: 0 16px;
}

.panel-top span {
    width: 9px;
    height: 9px;
    border-radius: 999px;
    background: var(--coral);
}

.panel-top span:nth-child(2) {
    background: var(--amber);
}

.panel-top span:nth-child(3) {
    background: var(--teal);
}

.panel-top strong {
    margin-left: auto;
    color: rgba(255, 255, 255, 0.58);
    font-size: 12px;
    text-transform: uppercase;
}

.runtime-panel dl {
    margin: 0;
    padding: 16px;
}

.runtime-panel dl div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    padding: 13px 0;
}

.runtime-panel dl div:last-child {
    border-bottom: 0;
}

.runtime-panel dt {
    color: rgba(255, 255, 255, 0.62);
    font-size: 13px;
}

.runtime-panel dd {
    margin: 0;
    font-weight: 900;
}

.runtime-panel code {
    display: block;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
    padding: 15px 16px;
    color: #a7f3d0;
    font-size: 12px;
}

.focus-strip {
    margin-top: -44px;
    position: relative;
    z-index: 5;
}

.focus-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border: 1px solid var(--line);
    background: #ffffff;
    box-shadow: var(--shadow);
}

.focus-grid article {
    min-height: 148px;
    padding: 24px;
}

.focus-grid article + article {
    border-left: 1px solid var(--line);
}

.focus-grid span {
    color: var(--coral);
    font-weight: 900;
}

.focus-grid strong {
    display: block;
    margin-top: 14px;
    font-size: 22px;
}

.focus-grid p,
.section-subtitle,
.archive-item p,
.article-row p,
.project-card p,
.work-card p,
.tool-card p,
.timeline-item p,
.profile-card p {
    color: var(--muted);
    line-height: 1.7;
}

.content-band {
    padding: 70px 0;
}

.content-band.tinted {
    border-top: 1px solid var(--line);
    background: #eef3f6;
}

.section-header,
.admin-section-head,
.panel-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 26px;
}

.section-title {
    margin: 10px 0 0;
    font-size: 34px;
}

.article-stack,
.archive-list {
    display: grid;
    gap: 12px;
}

.article-row,
.archive-item {
    display: grid;
    grid-template-columns: 132px minmax(0, 1fr) 74px;
    gap: 22px;
    align-items: start;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #ffffff;
    padding: 22px;
}

.article-row:hover,
.archive-item:hover,
.work-card:hover,
.tool-card:hover,
.project-card:hover {
    border-color: rgba(15, 118, 110, 0.35);
    box-shadow: 0 14px 42px rgba(23, 32, 51, 0.1);
}

.article-row h3,
.archive-item h2,
.work-card h3,
.tool-card h2,
.tool-card h3,
.project-card h2 {
    margin: 0 0 9px;
    line-height: 1.35;
}

.article-date,
.archive-item time,
.article-row em,
.archive-item em {
    color: var(--teal);
    font-size: 13px;
    font-style: normal;
    font-weight: 900;
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.tag-row span,
.badge {
    display: inline-flex;
    min-height: 25px;
    align-items: center;
    border: 1px solid rgba(15, 118, 110, 0.16);
    border-radius: 999px;
    padding: 4px 9px;
    background: rgba(15, 118, 110, 0.08);
    color: var(--teal);
    font-size: 12px;
    font-weight: 850;
}

.badge.success {
    border-color: rgba(21, 128, 61, 0.18);
    background: rgba(21, 128, 61, 0.09);
    color: var(--green);
}

.badge.muted {
    border-color: rgba(102, 112, 133, 0.2);
    background: rgba(102, 112, 133, 0.08);
    color: var(--muted);
}

.work-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr);
    gap: 18px;
}

.work-grid > div:first-child {
    display: grid;
    gap: 14px;
}

.work-card,
.project-card,
.tool-card,
.profile-card {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #ffffff;
    padding: 22px;
}

.tool-rail,
.tool-board,
.project-board {
    display: grid;
    gap: 18px;
}

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

.tool-card span,
.project-card span {
    color: var(--coral);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
}

.tool-card.large {
    min-height: 220px;
}

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

.page-hero {
    padding: 142px 0 62px;
    background:
        linear-gradient(135deg, rgba(16, 24, 40, 0.94), rgba(15, 118, 110, 0.82)),
        #101828;
    color: #ffffff;
}

.page-hero .lead {
    color: rgba(255, 255, 255, 0.78);
}

.article-page {
    padding: 122px 0 76px;
}

.article-layout {
    display: grid;
    grid-template-columns: 230px minmax(0, 760px);
    gap: 54px;
    align-items: start;
}

.article-meta {
    position: sticky;
    top: 92px;
    display: grid;
    gap: 14px;
}

.article-meta time,
.article-meta > span {
    color: var(--muted);
    font-size: 14px;
    font-weight: 800;
}

.article-body {
    border-left: 1px solid var(--line);
    padding-left: 38px;
}

.article-body h1 {
    margin: 0 0 18px;
    font-size: clamp(34px, 5vw, 58px);
    line-height: 1.08;
}

.article-body .lead {
    color: var(--ink-2);
    font-size: 20px;
}

.article-body p {
    color: #354454;
    font-size: 18px;
    line-height: 1.95;
}

.about-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 42px;
    align-items: end;
}

.profile-card strong {
    display: block;
    font-size: 24px;
}

.profile-card > span {
    display: block;
    margin-top: 8px;
    color: var(--teal);
    font-weight: 900;
}

.timeline {
    display: grid;
    gap: 14px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 22px;
    border-top: 1px solid var(--line);
    padding-top: 20px;
}

.timeline-item strong {
    color: var(--coral);
}

.timeline-item h3 {
    margin: 0 0 6px;
}

.timeline-item p {
    margin: 0;
}

.tool-workspace {
    display: grid;
    gap: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #ffffff;
    padding: 18px;
}

.tool-workspace.compact {
    max-width: 720px;
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

textarea,
input {
    width: 100%;
    border: 1px solid rgba(23, 32, 51, 0.18);
    border-radius: 6px;
    background: #ffffff;
    color: var(--ink);
}

textarea:focus,
input:focus {
    border-color: var(--teal);
    outline: 3px solid rgba(15, 118, 110, 0.12);
}

textarea {
    min-height: 320px;
    padding: 14px;
    resize: vertical;
}

input {
    min-height: 42px;
    padding: 9px 11px;
}

.field {
    display: grid;
    gap: 7px;
}

.field label {
    color: var(--ink-2);
    font-size: 13px;
    font-weight: 850;
}

.site-footer {
    border-top: 1px solid var(--line);
    padding: 26px 0;
    background: #ffffff;
    color: var(--muted);
    font-size: 14px;
}

.site-footer a {
    color: var(--teal);
    font-weight: 850;
}

.site-footer a:hover {
    color: var(--coral);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.admin-shell {
    min-height: 100vh;
    background: #eef2f6;
}

.admin-shell.has-sidebar {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
}

.admin-sidebar {
    position: sticky;
    top: 0;
    display: grid;
    height: 100vh;
    grid-template-rows: auto 1fr auto;
    border-right: 1px solid rgba(216, 222, 232, 0.22);
    background: #101828;
    color: #ffffff;
    padding: 20px;
}

.admin-brand {
    padding-bottom: 20px;
}

.admin-menu {
    display: grid;
    align-content: start;
    gap: 8px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 20px;
}

.admin-menu a {
    border: 1px solid transparent;
    border-radius: 6px;
    padding: 11px 12px;
    color: rgba(255, 255, 255, 0.74);
    font-weight: 800;
}

.admin-menu a:hover,
.admin-menu a.active {
    border-color: rgba(255, 255, 255, 0.14);
    background: rgba(15, 118, 110, 0.32);
    color: #ffffff;
}

.admin-sidebar-foot {
    display: grid;
    gap: 4px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 16px;
}

.admin-user-name {
    font-weight: 900;
}

.admin-user-role {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
}

.admin-main {
    min-width: 0;
}

.admin-topbar {
    display: flex;
    min-height: 92px;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    border-bottom: 1px solid var(--line);
    background: #ffffff;
    padding: 18px 30px;
}

.admin-topbar h1 {
    margin: 4px 0 0;
    font-size: 28px;
}

.admin-kicker {
    color: var(--teal);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
}

.admin-top-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-content {
    padding: 30px;
}

.login-only .admin-content {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 28px;
}

.login-screen {
    display: grid;
    width: min(940px, 100%);
    grid-template-columns: minmax(0, 1fr) 400px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #ffffff;
    box-shadow: var(--shadow);
}

.login-copy {
    display: grid;
    align-content: end;
    min-height: 520px;
    background:
        linear-gradient(135deg, rgba(16, 24, 40, 0.96), rgba(15, 118, 110, 0.82)),
        #101828;
    color: #ffffff;
    padding: 34px;
}

.login-copy h1 {
    margin: 14px 0;
    font-size: 44px;
    line-height: 1.05;
}

.login-copy p {
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.75;
}

.login-panel {
    align-self: center;
    padding: 32px;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.admin-stats article,
.admin-panel {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 10px 30px rgba(23, 32, 51, 0.05);
}

.admin-stats article {
    padding: 20px;
}

.admin-stats span {
    color: var(--muted);
    font-size: 13px;
    font-weight: 850;
}

.admin-stats strong {
    display: block;
    margin: 10px 0 6px;
    font-size: 34px;
}

.admin-stats small {
    color: var(--teal);
    font-weight: 850;
}

.admin-grid.two {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.admin-panel {
    overflow: hidden;
    padding: 0;
}

.panel-head,
.admin-section-head {
    margin: 0 0 18px;
}

.panel-head {
    border-bottom: 1px solid var(--line);
    padding: 18px;
}

.panel-head h2,
.admin-section-head h2,
.choice-panel h3 {
    margin: 0;
}

.panel-head p,
.admin-section-head p,
.choice-panel p {
    margin: 6px 0 0;
    color: var(--muted);
    line-height: 1.6;
}

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

.admin-table th,
.admin-table td {
    border-bottom: 1px solid var(--line);
    padding: 14px 16px;
    text-align: left;
    vertical-align: top;
}

.admin-table th {
    color: var(--muted);
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
}

.admin-table td strong {
    display: block;
}

.admin-table td span {
    display: block;
    margin-top: 4px;
    color: var(--muted);
    font-size: 13px;
}

.admin-form {
    display: grid;
    gap: 18px;
    padding: 22px;
}

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

.admin-form textarea {
    min-height: 240px;
}

.check-row,
.choice-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.check-row input,
.choice-item input {
    width: auto;
    min-height: auto;
    margin-top: 3px;
}

.choice-panel {
    display: grid;
    gap: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #f8fafc;
    padding: 18px;
}

.choice-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.choice-item {
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #ffffff;
    padding: 12px;
}

.choice-item strong,
.choice-item small {
    display: block;
}

.choice-item small {
    margin-top: 3px;
    color: var(--muted);
}

.permission-group {
    display: grid;
    gap: 10px;
}

.permission-group h4 {
    margin: 0;
    color: var(--teal);
    text-transform: uppercase;
}

.table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.table-actions a {
    color: var(--blue);
    font-weight: 850;
}

.table-actions form {
    margin: 0;
}

.link-danger {
    border: 0;
    background: transparent;
    color: var(--coral);
    font-weight: 850;
}

.danger {
    color: #b42318;
    font-weight: 850;
}

.notice {
    border: 1px solid rgba(15, 118, 110, 0.18);
    border-radius: 8px;
    background: rgba(15, 118, 110, 0.08);
    color: var(--teal);
    margin-bottom: 18px;
    padding: 12px 14px;
    font-weight: 850;
}

nav[role="navigation"] {
    margin-top: 18px;
}

nav[role="navigation"] .hidden {
    display: none;
}

nav[role="navigation"] p {
    color: var(--muted);
}

nav[role="navigation"] a,
nav[role="navigation"] span {
    display: inline-flex;
    min-width: 34px;
    min-height: 34px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #ffffff;
    padding: 6px 9px;
    margin: 0 2px;
}

@media (max-width: 980px) {
    .hero-inner,
    .work-grid,
    .about-layout,
    .login-screen,
    .admin-grid.two,
    .project-board,
    .tool-board,
    .tool-grid {
        grid-template-columns: 1fr;
    }

    .hero-inner {
        gap: 28px;
        padding-top: 100px;
    }

    .runtime-panel {
        max-width: 460px;
    }

    .admin-shell.has-sidebar {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        position: relative;
        height: auto;
    }

    .admin-menu {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

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

@media (max-width: 720px) {
    .container {
        width: min(100% - 28px, 1160px);
    }

    .site-header {
        position: absolute;
    }

    .site-nav {
        align-items: flex-start;
        flex-direction: column;
        padding: 13px 0;
    }

    .nav-links {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 4px;
    }

    .hero-stage,
    .hero-inner {
        min-height: auto;
    }

    .hero-copy h1,
    .page-title {
        font-size: 42px;
        line-height: 1.08;
    }

    .focus-strip {
        margin-top: 0;
    }

    .focus-grid,
    .article-row,
    .archive-item,
    .article-layout,
    .form-grid,
    .choice-grid {
        grid-template-columns: 1fr;
    }

    .focus-grid article + article {
        border-top: 1px solid var(--line);
        border-left: 0;
    }

    .section-header,
    .admin-section-head,
    .panel-head,
    .footer-inner,
    .admin-topbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .article-meta {
        position: static;
    }

    .article-body {
        border-left: 0;
        padding-left: 0;
    }

    .admin-content,
    .admin-topbar {
        padding: 18px;
    }

    .admin-stats,
    .admin-menu {
        grid-template-columns: 1fr;
    }

    .admin-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    .login-copy {
        min-height: auto;
    }
}