:root {
    --bg: #050403;
    --bg-2: #0c0905;
    --panel: #120e08;
    --panel-2: #1a1309;
    --panel-3: #241909;
    --line: rgba(214, 171, 82, 0.42);
    --line-soft: rgba(214, 171, 82, 0.18);
    --text: #fff7e8;
    --soft: #ead9b8;
    --muted: #b9aa8f;
    --gold: #d6ab52;
    --gold-2: #f3d28a;
    --white: #ffffff;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
    --max: 1180px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, "Microsoft YaHei", "PingFang SC", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 18% 0%, rgba(214, 171, 82, 0.22), transparent 34%),
        radial-gradient(circle at 82% 12%, rgba(243, 210, 138, 0.10), transparent 28%),
        linear-gradient(180deg, #050403 0%, #090704 52%, #040302 100%);
    line-height: 1.72;
    overflow-x: hidden;
}

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

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

h1,
h2,
h3,
p,
a,
span,
strong,
li,
div {
    overflow-wrap: anywhere;
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    background: rgba(5, 4, 3, 0.94);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(14px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 76px;
    gap: 18px;
}

.logo {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
}

.logo img {
    width: 180px;
    height: 48px;
    object-fit: contain;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    flex-wrap: wrap;
}

.nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 8px 11px;
    color: var(--soft);
    border: 1px solid transparent;
    font-size: 14px;
    line-height: 1.2;
}

.nav a:hover,
.nav a.active {
    color: var(--white);
    border-color: var(--gold);
    background: rgba(214, 171, 82, 0.12);
}

.nav-toggle {
    display: none;
    width: 46px;
    height: 42px;
    padding: 0;
    border: 1px solid var(--line);
    background: rgba(214, 171, 82, 0.12);
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    margin: 5px auto;
    background: var(--gold-2);
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    min-height: 48px;
    color: var(--muted);
    font-size: 14px;
    padding-top: 14px;
}

.breadcrumb a {
    color: var(--gold-2);
}

.breadcrumb span,
.breadcrumb strong {
    color: var(--soft);
    font-weight: 600;
}

.hero {
    position: relative;
    padding: 72px 0 58px;
    border-bottom: 1px solid var(--line-soft);
    background:
        linear-gradient(90deg, rgba(5, 4, 3, 0.94), rgba(20, 14, 6, 0.66)),
        radial-gradient(circle at 86% 18%, rgba(243, 210, 138, 0.14), transparent 34%);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(214, 171, 82, 0.10), transparent 42%, rgba(214, 171, 82, 0.06));
    pointer-events: none;
}

.hero-grid,
.grid-2 {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
    gap: 32px;
    align-items: center;
}

.hero-grid > div,
.grid-2 > div {
    min-width: 0;
}

.eyebrow {
    color: var(--gold-2);
    font-size: 14px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin: 0 0 14px;
    font-weight: 800;
}

h1,
h2,
h3 {
    line-height: 1.25;
    margin: 0;
}

h1 {
    font-size: clamp(34px, 4.8vw, 64px);
    letter-spacing: -0.035em;
}

h2 {
    font-size: clamp(26px, 3vw, 40px);
    letter-spacing: -0.02em;
}

h3 {
    font-size: 20px;
}

p {
    color: var(--muted);
}

.lead {
    color: var(--soft);
    font-size: 18px;
    margin: 20px 0 0;
    max-width: 720px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 28px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 12px 18px;
    border: 1px solid var(--gold);
    background: linear-gradient(180deg, var(--gold-2), var(--gold));
    color: #160f04;
    font-weight: 800;
    line-height: 1.2;
    cursor: pointer;
}

.btn.secondary {
    background: transparent;
    color: var(--gold-2);
}

.btn:hover {
    filter: brightness(1.08);
}

.hero-card,
.panel,
.card,
.article-card,
.form-box,
.faq-item,
.login-box,
.media-panel,
.side-panel,
.article-content {
    border: 1px solid var(--line);
    background:
        linear-gradient(180deg, rgba(26, 19, 9, 0.96), rgba(10, 8, 5, 0.96));
    box-shadow: var(--shadow);
}

.hero-card {
    width: 100%;
    min-width: 0;
    display: grid;
    gap: 16px;
    padding: clamp(16px, 2vw, 22px);
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(214, 171, 82, 0.18), transparent 46%),
        radial-gradient(circle at 80% 18%, rgba(243, 210, 138, 0.12), transparent 36%),
        linear-gradient(180deg, rgba(24, 17, 8, 0.98), rgba(5, 4, 3, 0.98));
}

.hero-card > img {
    width: 100%;
    height: clamp(260px, 28vw, 360px);
    object-fit: contain;
    object-position: center;
    padding: clamp(14px, 2vw, 24px);
    border: 1px solid rgba(214, 171, 82, 0.26);
    background:
        radial-gradient(circle at 76% 18%, rgba(243, 210, 138, 0.12), transparent 34%),
        linear-gradient(180deg, rgba(18, 13, 6, 0.98), rgba(6, 5, 3, 0.98));
}

.gold-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border: 1px solid var(--line);
    background: rgba(10, 8, 5, 0.72);
}

.gold-strip div {
    min-width: 0;
    padding: 15px 14px;
    border-right: 1px solid var(--line);
}

.gold-strip div:last-child {
    border-right: 0;
}

.gold-strip strong {
    display: block;
    color: var(--gold-2);
    font-size: 19px;
    line-height: 1.25;
    margin-bottom: 6px;
    display: -webkit-box;
    overflow: hidden;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.gold-strip span {
    display: -webkit-box;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.55;
    overflow: hidden;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.section {
    padding: 62px 0;
    border-bottom: 1px solid var(--line-soft);
}

.section.alt {
    background: rgba(214, 171, 82, 0.035);
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 28px;
    margin-bottom: 28px;
}

.section-head > div {
    min-width: 0;
}

.section-head p {
    width: min(540px, 100%);
    color: var(--muted);
    margin: 0;
}

.grid-3,
.grid-4,
.article-grid,
.faq-grid {
    display: grid;
    gap: 20px;
}

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

.grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.article-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.card,
.panel,
.faq-item,
.login-box,
.article-content {
    min-width: 0;
    padding: 24px;
}

.card {
    min-height: 210px;
    transition: transform 0.18s ease, border-color 0.18s ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(243, 210, 138, 0.72);
}

.card .num {
    color: var(--gold-2);
    font-weight: 800;
    letter-spacing: 0.12em;
    margin-bottom: 14px;
}

.card h3,
.article-card h3 {
    display: -webkit-box;
    min-height: 50px;
    overflow: hidden;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.card p,
.article-card p,
.panel p,
.faq-item p,
.article-content p,
.article-content li {
    color: var(--muted);
    margin: 10px 0 0;
}

.card p,
.article-card p {
    display: -webkit-box;
    min-height: 76px;
    overflow: hidden;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.media-panel {
    min-width: 0;
    min-height: 100%;
    padding: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.media-panel img {
    width: 100%;
    height: 320px;
    padding: 22px;
    object-fit: contain;
    object-position: center;
    border: 1px solid rgba(214, 171, 82, 0.26);
    background:
        radial-gradient(circle at 76% 18%, rgba(243, 210, 138, 0.12), transparent 34%),
        linear-gradient(180deg, rgba(18, 13, 6, 0.98), rgba(6, 5, 3, 0.98));
}

.feature-list {
    display: grid;
    gap: 12px;
    margin-top: 22px;
}

.feature-list div {
    color: var(--muted);
    padding: 14px 16px;
    border-left: 3px solid var(--gold);
    background: rgba(214, 171, 82, 0.07);
}

.article-card {
    min-width: 0;
    overflow: hidden;
}

.article-card img {
    width: 100%;
    height: 178px;
    object-fit: cover;
    border-bottom: 1px solid var(--line);
}

.article-body {
    padding: 18px;
}

.meta {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    color: var(--gold-2);
    font-size: 13px;
    margin-bottom: 10px;
}

.news-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 26px;
    align-items: start;
}

.side-panel {
    position: sticky;
    top: 100px;
    padding: 24px;
}

.side-list {
    display: grid;
    gap: 12px;
    margin-top: 18px;
}

.side-list a {
    display: block;
    padding: 13px 14px;
    border: 1px solid var(--line-soft);
    color: var(--muted);
    background: rgba(214, 171, 82, 0.04);
}

.side-list a:hover {
    color: var(--gold-2);
    border-color: var(--gold);
}

.article-main {
    max-width: 900px;
    min-width: 0;
}

.article-main .article-cover {
    border: 1px solid var(--line);
    margin: 26px 0;
    background: rgba(10, 8, 5, 0.72);
}

.article-main .article-cover img {
    width: 100%;
    height: 430px;
    object-fit: cover;
}

.article-content p {
    font-size: 17px;
}

.form-box {
    min-width: 0;
    padding: 30px;
}

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

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

label {
    display: grid;
    gap: 8px;
    color: var(--soft);
    font-size: 14px;
    font-weight: 800;
}

input,
textarea,
select {
    width: 100%;
    min-height: 48px;
    border: 1px solid var(--line);
    background: rgba(5, 4, 3, 0.92);
    color: var(--white);
    padding: 12px 14px;
    outline: none;
    font-family: inherit;
    font-size: 15px;
}

textarea {
    min-height: 132px;
    resize: vertical;
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 2px rgba(214, 171, 82, 0.16);
}

input::placeholder,
textarea::placeholder {
    color: rgba(234, 217, 184, 0.52);
}

.login-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    align-items: stretch;
}

.login-box {
    min-height: 100%;
}

.login-box form {
    display: grid;
    gap: 16px;
    margin-top: 18px;
}

.captcha-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 132px;
    gap: 12px;
    align-items: end;
}

.check-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    color: var(--muted);
    font-size: 14px;
}

.check-row label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 400;
    margin: 0;
}

.check-row input {
    width: 16px;
    min-height: 16px;
    padding: 0;
}

.check-row a,
.login-box p a {
    color: var(--gold-2);
}

.site-footer {
    background: #040302;
    border-top: 1px solid var(--line);
    padding: 48px 0 26px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.35fr 0.8fr 0.8fr 1.15fr;
    gap: 28px;
}

.footer-grid > div,
.footer-col {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    min-width: 0;
}

.footer-col h3,
.footer-grid h3 {
    color: var(--gold-2);
    margin: 0 0 8px;
    font-size: 18px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    width: 100%;
}

.footer-links a,
.footer-links span,
.footer-col p {
    display: block;
    width: 100%;
    color: var(--muted);
    margin: 0;
    line-height: 1.8;
}

.footer-links a:hover {
    color: var(--gold-2);
}

.footer-bottom {
    margin-top: 30px;
    padding-top: 18px;
    border-top: 1px solid var(--line-soft);
    color: var(--muted);
    font-size: 14px;
}

@media (max-width: 1080px) {
    .nav a {
        padding: 8px 9px;
        font-size: 13px;
    }

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

@media (max-width: 980px) {
    .hero-grid,
    .grid-2,
    .news-layout,
    .login-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .grid-3,
    .grid-4,
    .article-grid,
    .faq-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .side-panel {
        position: static;
    }
}

@media (max-width: 820px) {
    .header-inner {
        min-height: 68px;
        flex-wrap: wrap;
        padding: 12px 0;
    }

    .nav-toggle {
        display: inline-block;
        margin-left: auto;
    }

    .nav {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0 0 12px;
        border-top: 1px solid var(--line);
        background: rgba(5, 4, 3, 0.98);
    }

    .nav.is-open {
        display: flex;
    }

    .nav a {
        display: block;
        width: 100%;
        justify-content: flex-start;
        padding: 14px 12px;
        border: 0;
        border-bottom: 1px solid var(--line-soft);
        font-size: 15px;
    }

    .nav a:hover,
    .nav a.active {
        border-color: transparent;
        background: rgba(214, 171, 82, 0.14);
    }

    .section-head {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 640px) {
    .container {
        width: min(100% - 24px, var(--max));
    }

    .hero {
        padding: 50px 0 42px;
    }

    .section {
        padding: 46px 0;
    }

    .grid-3,
    .grid-4,
    .article-grid,
    .faq-grid,
    .form-grid,
    .gold-strip {
        grid-template-columns: 1fr;
    }

    .gold-strip div {
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .gold-strip div:last-child {
        border-bottom: 0;
    }

    .hero-card > img,
    .media-panel img {
        height: 230px;
        padding: 16px;
    }

    .article-main .article-cover img {
        height: 260px;
    }

    .captcha-row {
        grid-template-columns: 1fr;
    }

    .check-row {
        align-items: flex-start;
        flex-direction: column;
    }

    .card,
    .panel,
    .faq-item,
    .form-box,
    .login-box,
    .article-content {
        padding: 20px;
    }
}

/* V23 CSS FIX：首页扩展板块完整样式，修复 black_gold 中 notice/table-box/table-row 缺失导致的排版异常 */
.home-extra { position: relative; }
.home-extra .section-head { position: relative; z-index: 1; }
.extra-card-grid,
.topic-grid,
.faq-grid { align-items: stretch; }
.extra-card-grid .extra-card,
.topic-grid .topic-card,
.faq-grid .faq-item { min-height: 100%; }
.extra-card-grid .extra-card h3,
.topic-grid .topic-card h3,
.faq-grid .faq-item h3 { margin: 0 0 8px; }
.extra-card-grid .extra-card p,
.topic-grid .topic-card p,
.faq-grid .faq-item p { margin-top: 8px; }
.extra-split { align-items: stretch; }
.extra-panel { display: grid; align-content: start; gap: 10px; }
.extra-step-list { display: grid; gap: 12px; margin-top: 16px; }
.extra-step-list div {
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 12px;
    align-items: start;
    padding: 14px;
    border: 1px solid var(--line-soft);
    background: rgba(255, 255, 255, 0.035);
}
.extra-step-list strong { color: var(--gold-2); line-height: 1.4; letter-spacing: 0.08em; }
.extra-step-list span,
.support-band p,
.support-points span { color: var(--muted); }
.table-box.extra-table {
    align-self: stretch;
    display: grid;
    gap: 0;
    padding: 0;
    overflow: hidden;
    border: 1px solid var(--line);
    background:
        radial-gradient(circle at 86% 10%, rgba(243, 210, 138, 0.10), transparent 30%),
        linear-gradient(180deg, rgba(26, 19, 9, 0.94), rgba(10, 7, 4, 0.96));
    box-shadow: var(--shadow);
}
.table-row {
    display: grid;
    grid-template-columns: minmax(120px, 0.46fr) minmax(0, 1fr);
    gap: 14px;
    align-items: center;
    padding: 17px 20px;
    border-bottom: 1px solid var(--line-soft);
}
.table-row:last-child { border-bottom: 0; }
.table-row strong { color: var(--gold-2); font-weight: 800; }
.table-row span { color: var(--soft); }
.notice.topic-card,
.topic-grid .topic-card {
    min-width: 0;
    padding: 22px;
    border: 1px solid var(--line-soft);
    background:
        radial-gradient(circle at 82% 12%, rgba(243, 210, 138, 0.09), transparent 28%),
        linear-gradient(180deg, rgba(18, 14, 8, 0.96), rgba(8, 6, 4, 0.96));
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
}
.notice.topic-card h3,
.topic-grid .topic-card h3 {
    color: var(--text);
    min-height: 50px;
    display: -webkit-box;
    overflow: hidden;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.notice.topic-card p,
.topic-grid .topic-card p {
    color: var(--muted);
    display: -webkit-box;
    min-height: 76px;
    overflow: hidden;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}
.support-band {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.86fr);
    gap: 26px;
    align-items: center;
    padding: 30px;
    border: 1px solid var(--line);
    background:
        radial-gradient(circle at 90% 18%, rgba(243, 210, 138, 0.12), transparent 28%),
        linear-gradient(135deg, rgba(36, 25, 9, 0.96), rgba(10, 7, 4, 0.96));
    box-shadow: var(--shadow);
}
.support-band h2 { margin-bottom: 12px; }
.support-points { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.support-points span {
    display: block;
    min-width: 0;
    padding: 14px;
    border: 1px solid var(--line-soft);
    background: rgba(0, 0, 0, 0.18);
    font-weight: 700;
}
@media (max-width: 980px) {
    .extra-card-grid,
    .topic-grid,
    .faq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .support-band { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .extra-card-grid,
    .topic-grid,
    .faq-grid,
    .support-points { grid-template-columns: 1fr; }
    .table-row { grid-template-columns: 1fr; gap: 6px; padding: 15px 16px; }
    .support-band { padding: 22px; }
    .extra-step-list div { grid-template-columns: 44px minmax(0, 1fr); padding: 12px; }
}