/* roulang page: index */
:root {
    --primary: #123F34;
    --primary-dark: #0B2B24;
    --primary-soft: #2C6657;
    --accent: #BE9A61;
    --accent-light: #E7D5B0;
    --paper: #F6F1E7;
    --card: #FFFDF8;
    --text: #1E2A26;
    --text-weak: #6B766F;
    --line: rgba(15, 59, 50, 0.14);
    --danger: #8e2f2f;
    --radius-sm: 4px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --shadow: 0 10px 30px rgba(15, 59, 50, 0.08);
    --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
    --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", system-ui, -apple-system, sans-serif;
    --container: 1200px;
    --section-space: clamp(64px, 8vw, 116px);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--paper);
    color: var(--text);
    line-height: 1.9;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

body.menu-open {
    overflow: hidden;
}

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

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

button,
input {
    font-family: inherit;
}

ul,
ol {
    list-style: none;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 28px;
}

.skip-link {
    position: absolute;
    left: -999px;
    top: 8px;
    background: var(--accent);
    color: var(--primary-dark);
    padding: 6px 14px;
    z-index: 999;
}

.skip-link:focus {
    left: 8px;
}

/* header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--primary-dark);
    border-bottom: 1px solid rgba(231, 213, 176, 0.12);
}

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

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    color: var(--accent-light);
    font-size: 1.25rem;
    letter-spacing: 0.06em;
    white-space: nowrap;
    font-weight: 700;
}

.brand-mark {
    width: 32px;
    height: 32px;
    border: 1px solid rgba(190, 154, 97, 0.7);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    color: var(--accent-light);
    font-size: 1rem;
    background: rgba(190, 154, 97, 0.08);
    border-radius: var(--radius-sm);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-list a {
    position: relative;
    color: rgba(255, 253, 248, 0.92);
    font-size: 0.93rem;
    letter-spacing: 0.02em;
    padding: 6px 0;
    transition: color 0.25s ease;
}

.nav-list a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    height: 2px;
    width: 0;
    background: var(--accent);
    transition: width 0.35s ease;
}

.nav-list a:hover {
    color: #fff;
}

.nav-list a:hover::after,
.nav-list a.is-active::after {
    width: 100%;
}

.nav-list a.is-active {
    color: var(--accent-light);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-login {
    color: rgba(255, 253, 248, 0.76);
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.nav-login:hover {
    color: #fff;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius-sm);
    padding: 12px 24px;
    font-size: 0.95rem;
    line-height: 1.2;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
}

.btn--nav {
    padding: 9px 18px;
    font-size: 0.88rem;
    background: var(--primary);
    border-color: rgba(190, 154, 97, 0.55);
    color: #f5f1e6;
}

.btn--nav:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--primary-dark);
}

/* hero */
.hero {
    position: relative;
    background: var(--primary-dark);
    min-height: clamp(640px, 82vh, 820px);
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 96px 0 70px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
}

.hero-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(6, 28, 24, 0.97) 0%, rgba(11, 43, 36, 0.9) 44%, rgba(11, 43, 36, 0.46) 100%);
}

.hero-mask::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 180px;
    background: linear-gradient(to bottom, transparent, rgba(11, 43, 36, 0.85));
}

.hero .container {
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--accent-light);
    border: 1px solid rgba(231, 213, 176, 0.35);
    background: rgba(255, 255, 255, 0.06);
    font-size: 0.8rem;
    letter-spacing: 0.22em;
    padding: 7px 14px;
    border-radius: 100px;
    margin-bottom: 24px;
}

.hero-content {
    max-width: 820px;
}

.hero h1 {
    font-family: var(--font-display);
    color: #fffaf0;
    font-size: clamp(2.1rem, 5vw, 4rem);
    line-height: 1.28;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-bottom: 20px;
}

.hero-lead {
    color: rgba(243, 241, 231, 0.88);
    font-size: 1.08rem;
    max-width: 640px;
    line-height: 1.9;
    margin-bottom: 34px;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.btn--primary {
    background: var(--accent);
    color: var(--primary-dark);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn--primary:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
    transform: translateY(-2px);
}

.btn--ghost {
    background: transparent;
    border-color: rgba(231, 213, 176, 0.75);
    color: #f8f3e8;
}

.btn--ghost:hover {
    background: rgba(190, 154, 97, 0.18);
    border-color: var(--accent-light);
    transform: translateY(-2px);
}

.hero-metrics {
    margin-top: 54px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    max-width: 650px;
}

.hero-metric {
    border-left: 2px solid var(--accent);
    padding: 8px 0 8px 18px;
    border-radius: 0 2px 2px 0;
}

.hero-metric strong {
    display: block;
    font-family: var(--font-display);
    color: #fff;
    font-size: 1rem;
    line-height: 1.6;
}

.hero-metric span {
    color: rgba(247, 242, 229, 0.7);
    font-size: 0.83rem;
}

/* section base */
.section {
    padding: var(--section-space) 0;
}

.section--soft {
    background: var(--paper);
}

.section--light {
    background: #FCF9F2;
}

.section-head {
    max-width: 780px;
    margin-bottom: 44px;
}

.section-kicker {
    display: inline-block;
    font-size: 0.78rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 12px;
}

.section h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3vw, 2.45rem);
    line-height: 1.3;
    color: var(--text);
    font-weight: 700;
    letter-spacing: 0.02em;
}

.section-desc {
    color: var(--text-weak);
    margin-top: 14px;
    font-size: 1rem;
}

/* category intro grid */
.category-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    grid-template-rows: repeat(2, minmax(210px, auto));
    gap: 22px;
}

.cat-card {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    min-height: 220px;
    padding: 28px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(190, 154, 97, 0.25);
    background-size: cover;
    background-position: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cat-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(9, 25, 21, 0.05) 0%, rgba(9, 25, 21, 0.42) 56%, rgba(9, 25, 21, 0.9) 100%);
    z-index: 1;
}

.cat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(11, 43, 36, 0.18);
}

.cat-card > * {
    position: relative;
    z-index: 2;
}

.cat-card--main {
    grid-row: 1 / 3;
    justify-content: flex-end;
    background-image: url('/assets/images/coverpic/cover-1.webp');
}

.cat-card--side-1 {
    background-image: url('/assets/images/coverpic/cover-2.webp');
}

.cat-card--side-2 {
    background-image: url('/assets/images/coverpic/cover-3.png');
}

.cat-card__inner {
    color: #fff;
}

.cat-card__tag {
    color: var(--accent-light);
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    border: 1px solid rgba(231, 213, 176, 0.65);
    background: rgba(255, 255, 255, 0.08);
    border-radius: 100px;
    padding: 4px 12px;
    display: inline-block;
    backdrop-filter: blur(2px);
    margin-bottom: 14px;
}

.cat-card h3 {
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 1.6vw, 1.6rem);
    line-height: 1.4;
    margin-bottom: 8px;
}

.cat-card p {
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.92rem;
    line-height: 1.75;
    max-width: 48ch;
    margin-bottom: 16px;
}

.cat-card__more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent-light);
    font-size: 0.9rem;
}

.cat-card__more i {
    display: inline-block;
    width: 20px;
    height: 1px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.cat-card:hover .cat-card__more i {
    width: 34px;
}

/* about path section */
.about-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-media {
    background: #e3ddcf;
    border-radius: var(--radius-lg);
    aspect-ratio: 4/3;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.about-list {
    margin-top: 20px;
    display: grid;
    gap: 20px;
}

.about-point {
    padding-left: 18px;
    border-left: 2px solid var(--accent);
}

.about-point h3 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    color: var(--primary-dark);
    margin-bottom: 6px;
}

.about-point p {
    color: var(--text-weak);
    font-size: 0.95rem;
}

/* posts */
.posts-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.post-card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 24px 26px;
    display: flex;
    flex-direction: column;
    transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.post-card:hover {
    border-color: rgba(190, 154, 97, 0.6);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.post-card__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.badge-cat {
    display: inline-block;
    background: rgba(18, 63, 52, 0.1);
    color: var(--primary-soft);
    border-radius: var(--radius-sm);
    padding: 3px 10px;
    font-size: 0.8rem;
    font-weight: 600;
}

.post-card__date {
    color: #7a847c;
    font-size: 0.82rem;
}

.post-card h3 {
    font-family: var(--font-display);
    font-size: 1.12rem;
    line-height: 1.55;
    font-weight: 700;
    margin: 14px 0 8px;
    color: var(--text);
    transition: color .2s ease;
}

.post-card h3 a:hover {
    color: var(--primary-soft);
}

.post-card p {
    color: var(--text-weak);
    font-size: 0.92rem;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-card__footer {
    margin-top: auto;
    padding-top: 16px;
}

.post-card__read {
    font-size: 0.9rem;
    color: var(--primary-soft);
    border-bottom: 1px solid var(--accent);
    padding-bottom: 2px;
    transition: color .2s ease;
}

.post-card__read:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.empty-state {
    grid-column: 1 / -1;
    border: 1px dashed rgba(15, 59, 50, 0.3);
    background: rgba(255, 255, 255, 0.5);
    color: var(--text-weak);
    text-align: center;
    padding: 52px 20px;
    border-radius: var(--radius-md);
    font-size: 0.98rem;
}

.empty-state span {
    display: block;
    font-size: 1.6rem;
    margin-bottom: 10px;
}

/* membership wrap */
.membership-wrap {
    padding: var(--section-space) 0 0;
}

.membership-inner {
    margin-top: 36px;
}

.compare-table {
    background: var(--card);
    border-radius: var(--radius-lg);
    overflow: auto;
    box-shadow: var(--shadow);
    border: 1px solid var(--line);
}

.compare-table table {
    width: 100%;
    min-width: 720px;
    border-collapse: collapse;
    font-size: 0.92rem;
}

.compare-table th,
.compare-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--line);
}

.compare-table th {
    background: var(--primary);
    color: #f4ead9;
    font-weight: 600;
}

.compare-table th:first-child {
    background: var(--primary-dark);
    color: var(--accent-light);
}

.compare-table td {
    color: #34463f;
}

.compare-table td:first-child {
    font-weight: 600;
    background: rgba(11, 43, 36, 0.03);
    color: var(--text);
}

.compare-table tr:last-child td {
    border-bottom: 0;
}

.compare-table tr.emphasis-row td {
    background: #F5ECDB;
}

.compare-table tr.emphasis-row td:first-child {
    background: rgba(190, 154, 97, 0.14);
}

.table-note {
    color: var(--text-weak);
    font-size: 0.8rem;
    margin-top: 12px;
}

/* tiers */
.tier-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}

.tier-copy p {
    color: var(--text-weak);
    margin: 14px 0 20px;
}

.tier-list {
    display: grid;
    gap: 12px;
    margin-top: 20px;
}

.tier-list li {
    position: relative;
    padding-left: 26px;
    color: #46564e;
    font-size: 0.95rem;
}

.tier-list li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 0.8em;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
}

.tier-path {
    background: var(--primary-dark);
    border-radius: var(--radius-lg);
    padding: 34px;
    color: #f8f1e2;
    background-image: linear-gradient(rgba(190, 154, 97, 0.03) 1px, transparent 1px);
    background-size: 100% 46px;
}

.tier-item {
    position: relative;
    padding: 18px 0 18px 18px;
    border-left: 1px solid rgba(231, 213, 176, 0.2);
}

.tier-item::before {
    content: "";
    position: absolute;
    left: -4px;
    top: 26px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
}

.tier-item span {
    font-size: 0.78rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent-light);
    opacity: .85;
}

.tier-item h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: #fff;
    margin: 3px 0 7px;
}

.tier-item p {
    color: rgba(248, 242, 229, 0.74);
    font-size: 0.91rem;
    line-height: 1.7;
}

/* locked preview */
.locked-area {
    margin-top: 32px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}

.locked-card {
    position: relative;
    background-size: cover;
    background-position: center;
    min-height: 280px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(190, 154, 97, 0.28);
}

.locked-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, rgba(255, 255, 255, 0.02) 0%, rgba(7, 36, 29, 0.72) 70%);
}

.locked-card--a {
    background-image: url('/assets/images/coverpic/cover-7.webp');
}

.locked-card--b {
    background-image: url('/assets/images/coverpic/cover-8.png');
}

.locked-card__body {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2;
    padding: 24px 26px;
    color: #fff;
    backdrop-filter: blur(6px);
    background: linear-gradient(to top, rgba(11, 43, 36, 0.92), rgba(11, 43, 36, 0.35));
}

.locked-badge {
    display: inline-block;
    background: rgba(190, 154, 97, 0.25);
    border: 1px solid rgba(231, 213, 176, 0.7);
    color: var(--accent-light);
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    margin-bottom: 12px;
}

.locked-card__body h3 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    line-height: 1.5;
    margin-bottom: 6px;
}

.locked-card__body p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.72);
    line-height: 1.75;
}

/* faq */
.faq-list {
    max-width: 840px;
    display: grid;
    gap: 0;
}

.faq-item {
    border-bottom: 1px solid var(--line);
}

.faq-item:first-child {
    border-top: 1px solid var(--line);
}

.faq-item summary {
    list-style: none;
    cursor: pointer;
    position: relative;
    padding: 24px 60px 24px 0;
    font-weight: 600;
    color: var(--text);
    line-height: 1.7;
    outline: none;
    transition: color 0.2s ease;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "+";
    position: absolute;
    right: 10px;
    top: 18px;
    width: 38px;
    height: 38px;
    border: 1px solid var(--line);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    line-height: 1;
    color: var(--accent);
    transition: all 0.3s ease;
}

.faq-item[open] summary::after {
    transform: rotate(135deg);
    border-color: var(--accent);
    background: rgba(190, 154, 97, 0.08);
}

.faq-item summary:hover,
.faq-item summary:focus {
    color: var(--primary-soft);
}

.faq-item .answer {
    color: var(--text-weak);
    padding: 0 40px 24px 0;
    font-size: 0.96rem;
    line-height: 1.9;
    max-width: 720px;
}

/* CTA */
.cta-join {
    background: var(--primary-dark);
    background-image: radial-gradient(circle at 100% 0%, rgba(190, 154, 97, 0.25), transparent 48%), linear-gradient(120deg, rgba(190, 154, 97, 0.08), transparent 60%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 34px;
    padding: clamp(34px, 5vw, 60px);
    color: #fff;
    overflow: hidden;
    border: 1px solid rgba(190, 154, 97, 0.28);
    box-shadow: 0 20px 50px rgba(11, 43, 36, 0.2);
}

.cta-join h2 {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 2.2vw, 1.9rem);
    color: #fff;
    line-height: 1.4;
}

.cta-join p {
    margin-top: 12px;
    color: rgba(251, 248, 240, 0.72);
    font-size: 0.96rem;
    max-width: 52ch;
}

.cta-join .btn-area {
    flex: 0 0 auto;
}

.btn--join {
    background: var(--accent);
    color: #0e2b24;
    border: 1px solid rgba(255, 255, 255, 0.6);
    font-weight: 700;
    padding: 14px 30px;
    box-shadow: 0 8px 20px rgba(190, 154, 97, 0.35);
    border-radius: 6px;
}

.btn--join:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
}

.join-note {
    font-size: 0.78rem;
    color: rgba(231, 213, 176, 0.72);
    margin-top: 14px;
}

/* footer */
.footer {
    background: var(--primary-dark);
    color: rgba(255, 253, 248, 0.7);
}

.footer-main {
    padding: 72px 0 46px;
    display: grid;
    grid-template-columns: 1.4fr 1fr 1.2fr;
    gap: 50px;
}

.footer-brand .brand {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--accent-light);
}

.footer-about {
    font-size: 0.9rem;
    line-height: 1.9;
    color: rgba(247, 240, 225, 0.7);
    max-width: 30em;
}

.footer h4 {
    font-size: 0.95rem;
    color: #eadfc3;
    margin-bottom: 16px;
    font-weight: 600;
}

.footer-links a {
    display: block;
    padding: 6px 0;
    color: rgba(247, 240, 225, 0.7);
    font-size: 0.9rem;
    transition: color .2s ease, padding-left .2s ease;
}

.footer-links a:hover {
    color: #fff;
    padding-left: 6px;
}

.footer-tip {
    font-size: 0.84rem;
    line-height: 1.9;
    padding: 18px 20px;
    border: 1px solid rgba(190, 154, 97, 0.22);
    background: rgba(190, 154, 97, 0.05);
    border-radius: var(--radius-sm);
    color: rgba(247, 240, 225, 0.7);
}

.footer-bottom {
    border-top: 1px solid rgba(231, 213, 176, 0.1);
    padding: 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
    font-size: 0.82rem;
    color: rgba(247, 240, 225, 0.5);
}

/* mobile hamburger */
.nav-toggle,
.nav-toggle-input {
    display: none;
}

@media (max-width: 980px) {
    .nav-toggle {
        display: flex;
        width: 44px;
        height: 44px;
        border: 1px solid rgba(231, 213, 176, 0.18);
        align-items: center;
        justify-content: center;
        border-radius: 4px;
    }

    .nav-toggle span,
    .nav-toggle span::before,
    .nav-toggle span::after {
        content: "";
        display: block;
        width: 18px;
        height: 2px;
        background: var(--accent-light);
        position: relative;
        transition: all .25s ease;
    }

    .nav-toggle span::before {
        position: absolute;
        top: -6px;
    }

    .nav-toggle span::after {
        position: absolute;
        top: 6px;
    }

    .nav-toggle-input:checked ~ .nav-toggle span {
        background: transparent;
    }

    .nav-toggle-input:checked ~ .nav-toggle span::before {
        top: 0;
        transform: rotate(45deg);
    }

    .nav-toggle-input:checked ~ .nav-toggle span::after {
        top: 0;
        transform: rotate(-45deg);
    }

    .main-nav {
        display: none;
    }

    .site-header .container {
        flex-wrap: wrap;
    }

    .nav-toggle-input:checked ~ .main-nav {
        display: block;
        width: calc(100% - 56px);
        position: absolute;
        top: 76px;
        left: 28px;
        background: #0a241f;
        border: 1px solid rgba(231, 213, 176, 0.15);
        border-radius: 0 0 14px 14px;
        padding: 18px 22px 28px;
        box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
    }

    .nav-toggle-input:checked ~ .main-nav .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        margin-bottom: 16px;
    }

    .nav-toggle-input:checked ~ .main-nav .nav-list a {
        display: inline-block;
        padding: 12px 0;
        font-size: 1rem;
    }

    .nav-toggle-input:checked ~ .main-nav .nav-actions {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
    }

    .category-grid {
        grid-template-columns: 1fr;
    }

    .cat-card--main {
        grid-row: auto;
    }

    .about-split,
    .tier-block,
    .locked-area {
        grid-template-columns: 1fr;
    }

    .locked-area {
        grid-template-columns: 1fr;
    }

    .cta-join {
        flex-direction: column;
        text-align: left;
        align-items: flex-start;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 38px;
    }
}

@media (max-width: 680px) {
    .container {
        padding: 0 18px;
    }

    .hero .container {
        padding: 0 18px;
    }

    .hero-metrics {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-top: 40px;
    }

    .posts-list {
        grid-template-columns: 1fr;
    }

    .cat-card {
        min-height: 200px;
    }

    .compare-table {
        width: 100%;
        overflow-x: auto;
    }

    .btn--nav {
        margin-left: 0;
    }

    .site-header .container {
        padding: 0 18px;
    }

    .brand {
        font-size: 1.08rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-lead {
        font-size: 1rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .section h2 {
        font-size: 1.55rem;
    }

    .footer-bottom {
        justify-content: center;
        text-align: center;
    }
}

/* roulang page: article */
:root {
            --green: #123F34;
            --green-dark: #0B2B24;
            --green-mid: #2C6657;
            --copper: #BE9A61;
            --gold-light: #E7D5B0;
            --paper: #F6F1E7;
            --card: #FFFDF8;
            --text: #1E2A26;
            --muted: #6B766F;
            --divider: rgba(15, 59, 50, 0.14);
            --line: rgba(15, 59, 50, 0.2);
            --shadow: 0 10px 30px rgba(15, 59, 50, 0.08);
            --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
            --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            font-size: 1rem;
            line-height: 1.9;
            color: var(--text);
            background: var(--paper);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }

        button,
        input {
            font: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(246, 241, 231, 0.96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--divider);
        }

        .site-header .container {
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-size: 1.18rem;
            font-weight: 700;
            color: var(--green-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .brand-mark {
            width: 34px;
            height: 34px;
            display: inline-grid;
            place-items: center;
            flex: 0 0 auto;
            background: var(--green);
            color: var(--gold-light);
            font-size: 1.12rem;
            border-radius: 4px 2px 4px 2px;
            box-shadow: inset 0 0 0 1px rgba(190, 154, 97, 0.55);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-list {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 32px;
            margin: 0;
        }

        .nav-list a {
            position: relative;
            display: inline-block;
            padding: 8px 0;
            font-size: 0.94rem;
            font-weight: 500;
            color: var(--text);
        }

        .nav-list a::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 2px;
            width: 0;
            height: 2px;
            background: var(--copper);
            transform: translateX(-50%);
            transition: width 0.25s ease;
        }

        .nav-list a:hover::after,
        .nav-list a.is-active::after {
            width: 100%;
        }

        .nav-list a.is-active {
            color: var(--green);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 18px;
            white-space: nowrap;
        }

        .nav-login {
            font-size: 0.88rem;
            color: var(--green-mid);
            font-weight: 500;
        }

        .nav-login:hover {
            color: var(--copper);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 22px;
            border-radius: 4px;
            font-size: 0.9rem;
            font-weight: 600;
            line-height: 1.4;
            border: 1px solid transparent;
            cursor: pointer;
            transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
        }

        .btn--nav {
            background: var(--green);
            border-color: var(--gold-light);
            color: #f7f1e2;
            box-shadow: 0 2px 10px rgba(18, 63, 52, 0.18);
        }

        .btn--nav:hover {
            background: var(--green-dark);
            color: var(--gold-light);
        }

        .btn:focus-visible,
        .nav-list a:focus-visible,
        .brand:focus-visible,
        .footer-links a:focus-visible {
            outline: 2px solid var(--copper);
            outline-offset: 4px;
            border-radius: 2px;
        }

        .nav-toggle,
        .nav-toggle-input {
            display: none;
        }

        .article-main {
            padding: 30px 0 80px;
        }

        .article-topline {
            background: var(--green-dark);
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.8rem;
            padding: 8px 0;
            letter-spacing: 0.04em;
        }

        .article-topline .container {
            display: flex;
            justify-content: flex-end;
            gap: 20px;
        }

        .article-breadcrumb {
            padding: 20px 0 14px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .article-breadcrumb span {
            font-size: 0.78rem;
            color: var(--muted);
        }

        .article-breadcrumb a {
            font-size: 0.78rem;
            color: var(--muted);
        }

        .article-breadcrumb a:hover {
            color: var(--green);
        }

        .article-breadcrumb .sep {
            color: rgba(15, 59, 50, 0.3);
        }

        .article-breadcrumb .current {
            color: var(--text);
            font-weight: 500;
        }

        .article-wrap {
            display: grid;
            grid-template-columns: 920px 1fr;
            grid-template-areas: "article aside";
            gap: 56px;
            align-items: start;
        }

        .article-box {
            grid-area: article;
            background: var(--card);
            border: 1px solid var(--divider);
            border-radius: 14px;
            padding: 52px 54px 48px;
            box-shadow: var(--shadow);
        }

        .article-eyebrow {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            margin-bottom: 26px;
        }

        .article-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(18, 63, 52, 0.08);
            border: 1px solid rgba(190, 154, 97, 0.24);
            color: var(--green-mid);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.76rem;
            font-weight: 600;
            letter-spacing: 0.06em;
        }

        .article-box h1 {
            font-family: var(--font-serif);
            font-size: clamp(1.8rem, 3.4vw, 2.7rem);
            line-height: 1.38;
            color: var(--green-dark);
            letter-spacing: 0.015em;
            margin-bottom: 18px;
            font-weight: 800;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px 22px;
            color: var(--muted);
            font-size: 0.82rem;
            border-bottom: 1px dashed var(--divider);
            padding-bottom: 22px;
            margin-bottom: 30px;
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-lead {
            font-size: 1.05rem;
            line-height: 2;
            color: #3b4942;
            background: #f3f0e6;
            border-left: 3px solid var(--copper);
            padding: 18px 22px;
            margin-bottom: 38px;
            border-radius: 0 6px 6px 0;
        }

        .article-body {
            color: var(--text);
            font-size: 1.03rem;
            line-height: 2;
        }

        .article-body p {
            margin-bottom: 1.55em;
        }

        .article-body h2 {
            font-family: var(--font-serif);
            font-size: 1.5rem;
            line-height: 1.5;
            color: var(--green-dark);
            margin-top: 2.2em;
            margin-bottom: 0.8em;
            position: relative;
            padding-left: 16px;
        }

        .article-body h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0.24em;
            width: 4px;
            height: 1.2em;
            border-radius: 4px;
            background: var(--copper);
        }

        .article-body h3 {
            font-family: var(--font-serif);
            font-size: 1.22rem;
            line-height: 1.6;
            color: var(--green);
            margin-top: 1.8em;
            margin-bottom: 0.7em;
        }

        .article-body ul,
        .article-body ol {
            padding: 0.2rem 0 1rem 1.2rem;
            margin-bottom: 1.4em;
        }

        .article-body li {
            margin-bottom: 0.45em;
        }

        .article-body a {
            color: var(--green-mid);
            text-decoration: underline solid rgba(190, 154, 97, 0.5);
            text-underline-offset: 4px;
        }

        .article-body a:hover {
            color: var(--copper);
        }

        .article-body blockquote {
            background: #f2eadb;
            border-left: 3px solid var(--copper);
            border-radius: 0 6px 6px 0;
            padding: 20px 24px;
            margin: 1.6em 0;
            font-family: var(--font-serif);
            font-size: 1.05rem;
            color: #41534a;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 2em 0;
            overflow: hidden;
            border-radius: 8px;
            background: var(--card);
        }

        .article-body thead th {
            background: var(--green);
            color: var(--gold-light);
            font-weight: 600;
            font-size: 0.92rem;
            padding: 14px 16px;
            text-align: left;
        }

        .article-body tbody td {
            border-bottom: 1px solid var(--divider);
            padding: 14px 16px;
            font-size: 0.95rem;
        }

        .article-body tbody tr:nth-child(even) {
            background: rgba(246, 241, 231, 0.55);
        }

        .article-body img {
            border-radius: 10px;
            margin: 2em 0;
            box-shadow: 0 8px 26px rgba(15, 59, 50, 0.12);
        }

        .table-scroll {
            overflow-x: auto;
            margin: 2em 0;
        }

        .article-bottom {
            margin-top: 44px;
            border-top: 1px solid var(--divider);
            padding-top: 26px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .link-back {
            color: var(--green-mid);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .link-back:hover {
            color: var(--copper);
        }

        .article-sidebar {
            grid-area: aside;
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 104px;
        }

        .side-card {
            background: var(--card);
            border: 1px solid var(--divider);
            border-radius: 10px;
            padding: 26px 24px;
            box-shadow: 0 6px 20px rgba(15, 59, 50, 0.04);
        }

        .side-card h3 {
            font-family: var(--font-serif);
            font-size: 1.05rem;
            color: var(--green-dark);
            margin-bottom: 16px;
            font-weight: 700;
            letter-spacing: 0.02em;
        }

        .side-card .side-note {
            font-size: 0.85rem;
            line-height: 1.95;
            color: var(--muted);
        }

        .side-mark {
            background: var(--green);
            color: var(--gold-light);
            border: 1px solid rgba(190, 154, 97, 0.35);
        }

        .side-mark h3 {
            color: #fff;
        }

        .side-mark p {
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.84rem;
            line-height: 1.9;
            margin-bottom: 20px;
        }

        .side-mark .btn {
            border-color: var(--gold-light);
            color: var(--green-dark);
            background: var(--gold-light);
            width: 100%;
        }

        .side-mark .btn:hover {
            background: transparent;
            color: #fff;
            border-color: var(--gold-light);
        }

        .more-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .more-list li {
            border-bottom: 1px dashed var(--divider);
        }

        .more-list li:last-child {
            border-bottom: 0;
        }

        .more-list a {
            padding: 13px 0;
            display: block;
            font-size: 0.9rem;
            color: var(--text);
            line-height: 1.5;
        }

        .more-list a small {
            display: block;
            color: var(--muted);
            font-size: 0.72rem;
            margin-top: 3px;
        }

        .more-list a:hover {
            color: var(--copper);
        }

        .article-next {
            max-width: 920px;
            padding: 48px 0 10px;
            border-top: 1px solid var(--divider);
            margin-top: 60px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .article-section-title {
            font-family: var(--font-serif);
            font-size: 1.5rem;
            color: var(--green-dark);
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .readmore-cards {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px 80px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .rmcard {
            background: var(--card);
            border: 1px solid var(--divider);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 6px 18px rgba(15, 59, 50, 0.05);
            display: flex;
            flex-direction: column;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .rmcard:hover {
            transform: translateY(-3px);
            border-color: rgba(190, 154, 97, 0.45);
            box-shadow: 0 15px 30px rgba(15, 59, 50, 0.1);
        }

        .rmcard-media {
            height: 174px;
            background-color: #e4e2d8;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .rmcard-media::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 43, 36, 0.1), rgba(11, 43, 36, 0.0));
        }

        .rmcard-body {
            padding: 24px 24px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .rmcard-cat {
            display: inline-flex;
            align-self: flex-start;
            align-items: center;
            background: rgba(18, 63, 52, 0.07);
            color: var(--green-mid);
            padding: 3px 12px;
            border-radius: 4px;
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 12px;
        }

        .rmcard-body h3 {
            font-family: var(--font-serif);
            font-size: 1.12rem;
            line-height: 1.55;
            color: var(--text);
            margin-bottom: 10px;
        }

        .rmcard-body p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.8;
            flex: 1;
            margin-bottom: 16px;
        }

        .rmcard-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--green);
            font-size: 0.83rem;
            font-weight: 600;
            border-bottom: 1px solid transparent;
        }

        .rmcard-link:hover {
            border-bottom-color: var(--copper);
            color: var(--copper);
        }

        .empty-article {
            background: var(--card);
            border: 1px dashed rgba(190, 154, 97, 0.45);
            border-radius: 14px;
            text-align: center;
            padding: 80px 30px;
            min-height: 380px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }

        .empty-code {
            font-family: var(--font-serif);
            font-size: 4rem;
            color: var(--copper);
            line-height: 1;
            opacity: 0.7;
            margin-bottom: 14px;
        }

        .empty-article h2 {
            font-family: var(--font-serif);
            font-size: 1.8rem;
            color: var(--green-dark);
            margin-bottom: 12px;
        }

        .empty-article p {
            color: var(--muted);
            margin-bottom: 28px;
            max-width: 440px;
            line-height: 1.9;
        }

        .btn--empty {
            background: var(--green);
            color: #fffdf8;
            border-color: var(--green);
        }

        .btn--empty:hover {
            background: var(--green-dark);
            border-color: var(--green-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(15, 59, 50, 0.16);
        }

        .footer {
            background: var(--green-dark);
            color: rgba(255, 255, 255, 0.78);
            padding: 72px 0 26px;
            margin-top: 0;
        }

        .footer .container {
            display: flex;
            flex-direction: column;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.6fr 0.7fr 1.1fr;
            gap: 48px;
            padding-bottom: 46px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand .brand {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-about {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.95;
            max-width: 360px;
        }

        .footer h4 {
            color: var(--gold-light);
            font-family: var(--font-serif);
            font-size: 0.96rem;
            font-weight: 600;
            margin: 8px 0 16px;
            letter-spacing: 0.1em;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 11px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.68);
            font-size: 0.86rem;
            width: fit-content;
        }

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

        .footer-tip {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.9;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            font-size: 0.76rem;
            color: rgba(255, 255, 255, 0.38);
            gap: 20px;
            flex-wrap: wrap;
        }

        @media (max-width: 1080px) {
            .article-wrap {
                grid-template-columns: 1fr;
                grid-template-areas: "article" "aside";
                gap: 32px;
            }

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }

            .readmore-cards {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 800px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .site-header .container {
                height: 66px;
                gap: 12px;
            }

            .brand {
                font-size: 1.06rem;
            }

            .nav-toggle {
                display: flex;
                flex-direction: column;
                justify-content: center;
                gap: 5px;
                cursor: pointer;
                width: 42px;
                height: 42px;
                align-items: center;
                border: 1px solid rgba(18, 63, 52, 0.15);
                border-radius: 6px;
                margin-left: auto;
                z-index: 110;
            }

            .nav-toggle span,
            .nav-toggle::before,
            .nav-toggle::after {
                content: "";
                width: 20px;
                height: 1.6px;
                background: var(--green-dark);
                display: block;
                transition: transform 0.25s ease;
            }

            .nav-toggle-input:checked+.nav-toggle::before {
                transform: translateY(6.5px) rotate(45deg);
            }

            .nav-toggle-input:checked+.nav-toggle span {
                opacity: 0;
            }

            .nav-toggle-input:checked+.nav-toggle::after {
                transform: translateY(-6.5px) rotate(-45deg);
            }

            .main-nav {
                position: absolute;
                top: 66px;
                left: 0;
                right: 0;
                background: var(--paper);
                border-top: 1px solid var(--divider);
                border-bottom: 1px solid var(--divider);
                flex-direction: column;
                gap: 6px;
                padding: 18px 22px 24px;
                align-items: flex-start;
                display: none;
                box-shadow: 0 24px 48px rgba(11, 43, 36, 0.12);
            }

            .nav-toggle-input:checked~.main-nav {
                display: flex;
            }

            .nav-list {
                flex-direction: column;
                align-items: flex-start;
                width: 100%;
                gap: 6px;
            }

            .nav-list li {
                width: 100%;
            }

            .nav-list a {
                display: block;
                padding: 11px 4px;
                font-size: 1rem;
                border-bottom: 1px solid var(--divider);
                width: 100%;
            }

            .nav-actions {
                margin-top: 16px;
                width: 100%;
                justify-content: flex-start;
            }

            .article-box {
                padding: 34px 24px;
                border-radius: 10px;
            }

            .article-box h1 {
                font-size: 1.65rem;
            }

            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr;
            }

            .readmore-cards {
                grid-template-columns: 1fr;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .article-main {
                padding-top: 16px;
            }

            .article-box {
                padding: 28px 18px;
            }

            .article-box h1 {
                font-size: 1.4rem;
            }

            .article-meta {
                gap: 8px 16px;
                font-size: 0.76rem;
            }

            .article-lead {
                font-size: 0.95rem;
                padding: 14px 16px;
            }

            .article-body {
                font-size: 0.98rem;
            }

            .article-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

            .readmore-cards {
                padding: 0 16px 52px;
            }
        }

/* roulang page: category1 */
:root {
  --green-900: #0B2B24;
  --green-700: #123F34;
  --green-500: #2C6657;
  --gold: #BE9A61;
  --gold-soft: #E7D5B0;
  --paper: #F6F1E7;
  --card: #FFFDF8;
  --ink: #1E2A26;
  --muted: #6B766F;
  --line: rgba(15, 59, 50, 0.14);
  --danger: #8F3B3B;
  --radius: 12px;
  --radius-lg: 18px;
  --shadow: 0 10px 30px rgba(15, 59, 50, 0.08);
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
  --sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.9;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  line-height: 1.35;
  margin: 0 0 1rem;
}

p {
  margin: 0 0 1.25rem;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease, border-color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease;
}

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

ul, ol {
  padding: 0;
  margin: 0;
  list-style: none;
}

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

.container {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  background: rgba(246, 241, 231, 0.9);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink);
  white-space: nowrap;
}

.brand-mark {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: var(--green-700);
  color: var(--gold-soft);
  border: 1px solid rgba(190, 154, 97, 0.65);
  border-radius: 4px;
  font-size: 1rem;
  line-height: 1;
  letter-spacing: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(24px, 2.4vw, 38px);
}

.nav-list a {
  position: relative;
  display: inline-block;
  padding: 8px 0;
  color: #2B3833;
  font-size: 0.95rem;
  font-weight: 500;
  white-space: nowrap;
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  transition: width .28s ease;
}

.nav-list a:hover,
.nav-list a:focus-visible {
  color: var(--green-700);
}

.nav-list a:hover::after,
.nav-list a:focus-visible::after,
.nav-list a.is-active::after {
  width: 100%;
}

.nav-list a.is-active {
  color: var(--green-700);
  font-weight: 650;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-left: 6px;
}

.nav-login {
  font-size: 0.92rem;
  color: #3B4A44;
}

.nav-login:hover,
.nav-login:focus-visible {
  color: var(--green-700);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 12px 24px;
  font-family: var(--sans);
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  white-space: nowrap;
  transition: background .25s ease, color .25s ease, border-color .25s ease, box-shadow .25s ease, transform .2s ease;
}

.btn:focus-visible {
  outline: 3px solid rgba(190, 154, 97, 0.45);
  outline-offset: 3px;
}

.btn--nav {
  padding: 8px 17px;
  font-size: 0.88rem;
  background: var(--green-700);
  border-color: rgba(190, 154, 97, 0.5);
  color: #fff;
}

.btn--nav:hover,
.btn--nav:focus-visible {
  background: var(--green-900);
  border-color: rgba(190, 154, 97, 0.8);
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--green-700);
  border-color: rgba(190, 154, 97, 0.45);
  color: #fff;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--green-900);
  border-color: var(--gold-soft);
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(18, 63, 52, 0.16);
}

.btn--ghost {
  background: transparent;
  border-color: var(--green-700);
  color: var(--green-700);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: var(--gold-soft);
  border-color: var(--green-700);
  transform: translateY(-2px);
}

.btn--gold {
  background: var(--gold);
  border-color: var(--gold);
  color: #0B2B24;
}

.btn--gold:hover,
.btn--gold:focus-visible {
  background: #D6B788;
  border-color: #E7D5B0;
  box-shadow: 0 12px 30px rgba(190, 154, 97, 0.24);
  transform: translateY(-2px);
}

.nav-toggle,
.nav-toggle-input {
  display: none;
}

.nav-toggle {
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  border-radius: 6px;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: var(--green-900);
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease;
}

.nav-toggle span {
  position: relative;
}

.nav-toggle span::before {
  position: absolute;
  top: -6px;
  left: 0;
}

.nav-toggle span::after {
  position: absolute;
  top: 6px;
  left: 0;
}

.nav-toggle-input:checked + .nav-toggle span {
  background: transparent;
}

.nav-toggle-input:checked + .nav-toggle span::before {
  transform: rotate(45deg);
  top: 0;
}

.nav-toggle-input:checked + .nav-toggle span::after {
  transform: rotate(-45deg);
  top: 0;
}

.page-hero {
  background-color: var(--green-900);
  background-image: linear-gradient(105deg, rgba(11, 43, 36, 0.97) 22%, rgba(18, 63, 52, 0.88) 76%), url("/assets/images/backpic/back-1.webp");
  background-size: cover;
  background-position: center;
  padding: clamp(56px, 7vw, 86px) 0 clamp(48px, 6vw, 72px);
  color: #F6F1E7;
  border-bottom: 1px solid rgba(190, 154, 97, 0.18);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  color: rgba(246, 241, 231, 0.68);
  margin-bottom: 36px;
}

.breadcrumb a {
  color: rgba(246, 241, 231, 0.78);
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--gold-soft);
}

.breadcrumb [aria-current="page"] {
  color: var(--gold-soft);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.82rem;
  letter-spacing: 0.26em;
  color: var(--gold);
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--gold);
}

.page-hero h1 {
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: 1.22;
  color: #fff;
  max-width: 800px;
  margin: 18px 0 20px;
  letter-spacing: 0.02em;
}

.page-hero .hero-lead {
  max-width: 660px;
  color: rgba(246, 241, 231, 0.84);
  font-size: 1rem;
  line-height: 1.95;
  margin: 0;
}

.section {
  padding: clamp(66px, 7vw, 96px) 0;
}

.section-intro {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 36px;
  margin-bottom: clamp(34px, 4vw, 50px);
}

.section-intro h2 {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  margin-bottom: 0;
  letter-spacing: 0.02em;
}

.section-intro .intro-note {
  max-width: 460px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.9;
  margin: 0;
}

.section-rules {
  background: var(--paper);
}

.rule-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 24px;
}

.rule-main {
  background: var(--green-900);
  color: #F6F1E7;
  border-radius: var(--radius-lg);
  padding: clamp(32px, 4vw, 56px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
  min-height: 420px;
  border: 1px solid rgba(190, 154, 97, 0.18);
  box-shadow: var(--shadow);
}

.rule-main::before {
  content: "";
  position: absolute;
  right: -40px;
  top: -64px;
  width: 220px;
  height: 220px;
  border: 1px solid rgba(231, 213, 176, 0.2);
  border-radius: 50%;
}

.rule-main .rule-kind {
  position: relative;
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: auto;
}

.rule-main h3 {
  font-size: clamp(3.4rem, 7vw, 5.6rem);
  color: #fff;
  margin: 18px 0 4px;
  line-height: 1;
  font-weight: 600;
}

.rule-main .rule-sub {
  font-size: 1rem;
  color: rgba(246, 241, 231, 0.82);
  max-width: 440px;
  line-height: 1.95;
  transform: translateY(-12px);
}

.rule-aside {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.rule-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid var(--gold);
  border-radius: 14px;
  padding: 26px 30px;
  box-shadow: 0 6px 18px rgba(15, 59, 50, 0.04);
}

.rule-card h3 {
  font-size: 1.8rem;
  margin-bottom: 6px;
  color: var(--green-700);
}

.rule-card p {
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.9;
  margin-bottom: 0;
}

.section-flow {
  background: var(--card);
  position: relative;
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}

.step-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  border-radius: 0 0 12px 12px;
  padding: 26px 20px 22px;
  height: 100%;
  position: relative;
}

.step-num {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--green-700);
  color: var(--gold-soft);
  font-family: var(--serif);
  font-weight: 700;
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 1.12rem;
  margin-bottom: 8px;
  color: var(--ink);
}

.step-card p {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
}

.section-glossary {
  background: var(--paper);
}

.glossary-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(36px, 5vw, 64px);
  align-items: center;
}

.glossary-media {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.glossary-media img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  border-radius: 16px;
}

.glossary-media::after {
  content: "庄闲合游戏规则图解";
  position: absolute;
  left: 18px;
  bottom: 18px;
  background: rgba(246, 241, 231, 0.9);
  backdrop-filter: blur(8px);
  color: var(--green-900);
  font-family: var(--serif);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  padding: 7px 14px;
  border-radius: 6px;
  border: 1px solid rgba(190, 154, 97, 0.28);
}

.term-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 32px;
}

.term-item {
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
}

.term-item h3 {
  font-size: 1.06rem;
  color: var(--green-700);
  margin-bottom: 4px;
}

.term-item p {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.8;
  margin: 0;
}

.section-notes {
  background: var(--card);
}

.notes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}

.notes-intro {
  background: var(--paper);
  border-left: 4px solid var(--gold);
  padding: 34px 36px;
  border-radius: 14px;
}

.notes-intro h3 {
  font-size: 1.55rem;
  color: var(--green-700);
  margin-bottom: 10px;
}

.notes-intro p {
  color: var(--muted);
  line-height: 1.9;
  font-size: 0.95rem;
}

.point-list {
  display: grid;
  gap: 0;
}

.point-list li {
  padding: 18px 0 18px 38px;
  border-bottom: 1px solid var(--line);
  position: relative;
  color: #31423B;
  font-size: 0.95rem;
}

.point-list li:last-child {
  border-bottom: 0;
}

.point-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 30px;
  width: 10px;
  height: 10px;
  background: var(--gold);
  border-radius: 2px;
  transform: rotate(45deg);
}

.notes-card {
  background: var(--green-900);
  border-radius: 16px;
  color: #F6F1E7;
  padding: 38px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.notes-card h3 {
  color: #fff;
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.notes-card p {
  color: rgba(246, 241, 231, 0.75);
  font-size: 0.9rem;
  margin-bottom: 0;
}

.section-faq {
  background: var(--paper);
}

.faq-list {
  max-width: 920px;
  margin: 0 auto;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(15, 59, 50, 0.03);
}

.faq-item summary {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 26px;
  cursor: pointer;
  list-style: none;
  transition: background .2s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  background: rgba(246, 241, 231, 0.5);
}

.faq-q {
  flex: 0 0 auto;
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  background: var(--green-700);
  color: var(--gold-soft);
  border-radius: 8px;
  font-family: var(--serif);
  font-size: 0.94rem;
  font-weight: 700;
}

.faq-t {
  flex: 1 1 auto;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.04rem;
  font-weight: 600;
}

.faq-icon {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 14px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  transition: transform .28s ease, opacity .28s ease;
}

.faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item[open] .faq-icon::before {
  opacity: 0;
}

.faq-item[open] .faq-icon::after {
  transform: translate(-50%, -50%) rotate(45deg);
}

.faq-a {
  padding: 0 30px 26px 80px;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.9;
}

.faq-a p {
  margin: 0;
}

.section-cta {
  background-color: var(--green-900);
  background-image: linear-gradient(115deg, rgba(11, 43, 36, 0.94) 10%, rgba(18, 63, 52, 0.87)), url("/assets/images/backpic/back-3.webp");
  background-size: cover;
  background-position: center;
  color: #F6F1E7;
  padding: clamp(70px, 7vw, 92px) 0;
}

.cta-inner {
  display: grid;
  grid-template-columns: 1.2fr auto;
  align-items: center;
  gap: 48px;
}

.cta-inner h2 {
  color: #fff;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  max-width: 580px;
  margin-bottom: 14px;
}

.cta-inner p {
  color: rgba(246, 241, 231, 0.78);
  max-width: 620px;
  font-size: 0.98rem;
  line-height: 1.9;
  margin-bottom: 0;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  justify-content: flex-end;
}

.btn--light-outline {
  border-color: rgba(231, 213, 176, 0.65);
  color: var(--gold-soft);
}

.btn--light-outline:hover,
.btn--light-outline:focus-visible {
  border-color: var(--gold-soft);
  background: rgba(255, 255, 255, 0.06);
}

.cta-remark {
  margin-top: 18px;
  color: rgba(246, 241, 231, 0.45);
  font-size: 0.8rem;
  line-height: 1.7;
}

.footer {
  background: var(--green-900);
  color: rgba(246, 241, 231, 0.72);
  padding: 64px 0 30px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 0.7fr 1.1fr;
  gap: clamp(30px, 5vw, 72px);
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(231, 213, 176, 0.14);
}

.footer .brand {
  color: #fff;
  margin-bottom: 12px;
}

.footer-about {
  font-size: 0.9rem;
  line-height: 1.9;
  color: rgba(246, 241, 231, 0.64);
  max-width: 380px;
  margin: 0;
}

.footer h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 16px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  display: inline-block;
  width: fit-content;
  color: rgba(246, 241, 231, 0.7);
  font-size: 0.9rem;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--gold-soft);
}

.footer-tip {
  font-size: 0.84rem;
  line-height: 1.85;
  color: rgba(246, 241, 231, 0.52);
  margin: 0;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 24px;
  font-size: 0.82rem;
  color: rgba(246, 241, 231, 0.42);
}

.footer-bottom a {
  color: inherit;
}

.footer-bottom a:hover {
  color: var(--gold-soft);
}

::selection {
  background: rgba(190, 154, 97, 0.35);
  color: #0B2B24;
}

@media (max-width: 1080px) {
  .container {
    width: min(100% - 40px, 960px);
  }

  .nav-list {
    gap: 20px;
  }

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

  .step-card:nth-child(4),
  .step-card:nth-child(5) {
    grid-column: span 1;
  }

  .glossary-grid {
    grid-template-columns: 1fr;
  }

  .glossary-media img {
    height: 320px;
  }

  .cta-inner {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .cta-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 800px) {
  .site-header .container {
    height: 66px;
    position: relative;
  }

  .nav-toggle {
    display: inline-flex;
    order: 3;
    margin-left: auto;
  }

  .main-nav {
    position: absolute;
    top: 66px;
    left: 18px;
    right: 18px;
    display: none;
    background: rgba(255, 253, 248, 0.98);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 20px 24px 26px;
    flex-direction: column;
    align-items: stretch;
    gap: 18px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
  }

  .nav-toggle-input:checked + .nav-toggle + .main-nav {
    display: flex;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }

  .nav-list a {
    display: block;
    padding: 10px 0;
    font-size: 1rem;
    width: 100%;
  }

  .nav-list a.is-active::after {
    width: 28px;
  }

  .nav-list a:hover,
  .nav-list a:focus-visible {
    color: var(--green-700);
  }

  .nav-actions {
    border-top: 1px solid var(--line);
    padding-top: 18px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-left: 0;
  }

  .nav-actions .btn {
    text-align: center;
  }

  .rule-grid {
    grid-template-columns: 1fr;
  }

  .rule-main {
    min-height: 300px;
  }

  .rule-aside {
    grid-template-columns: 1fr;
  }

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

  .step-card:nth-child(5) {
    grid-column: span 2;
  }

  .section-intro {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .notes-grid {
    grid-template-columns: 1fr;
  }

  .footer-main {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .container {
    width: calc(100% - 28px);
  }

  .site-header .container {
    gap: 8px;
  }

  .brand {
    font-size: 1.08rem;
  }

  .brand-mark {
    width: 26px;
    height: 26px;
    font-size: 0.9rem;
  }

  .page-hero {
    padding-top: 54px;
    padding-bottom: 44px;
  }

  .breadcrumb {
    margin-bottom: 26px;
  }

  .page-hero h1 {
    font-size: clamp(2rem, 9vw, 2.8rem);
  }

  .section {
    padding: 52px 0;
  }

  .rule-main {
    padding: 28px 22px;
  }

  .rule-card {
    padding: 22px 20px;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .step-card:nth-child(5) {
    grid-column: auto;
  }

  .term-list {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .notes-intro,
  .notes-card {
    padding: 26px 22px;
  }

  .faq-item summary {
    padding: 18px 16px;
  }

  .faq-q {
    width: 32px;
    height: 32px;
    font-size: 0.86rem;
  }

  .faq-t {
    font-size: 0.98rem;
  }

  .faq-a {
    padding: 0 18px 20px 64px;
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

/* roulang page: category2 */
:root {
  --primary: #123F34;
  --primary-deep: #0B2B24;
  --primary-soft: #2C6657;
  --gold: #BE9A61;
  --gold-light: #E7D5B0;
  --paper: #F6F1E7;
  --card: #FFFDF8;
  --text: #1E2A26;
  --muted: #6B766F;
  --line: rgba(15, 59, 50, 0.14);
  --white-soft: rgba(255, 255, 255, 0.72);
  --font-display: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --radius: 12px;
  --radius-sm: 6px;
  --shadow: 0 12px 36px rgba(15, 59, 50, 0.08);
  --navy: #0B2B24;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.9;
  color: var(--text);
  background-color: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
  object-fit: cover;
}
a {
  color: inherit;
  text-decoration: none;
}
ul,
ol {
  list-style: none;
}
button,
input,
textarea {
  font: inherit;
  color: inherit;
}
h1,
h2,
h3 {
  font-family: var(--font-display);
  line-height: 1.3;
  color: var(--primary);
  font-weight: 600;
}
.container {
  max-width: 1220px;
  margin-inline: auto;
  padding-inline: 24px;
}
.eyebrow {
  display: inline-block;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-head {
  max-width: 820px;
  margin-bottom: 44px;
}
.section-head h2 {
  font-size: clamp(1.7rem, 3vw, 2.55rem);
  letter-spacing: 0.02em;
  margin-top: 6px;
}
.section-head p {
  color: var(--muted);
  margin-top: 14px;
  font-size: 1.04rem;
}

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(255, 253, 248, 0.95);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  position: relative;
  height: 76px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: var(--primary);
  border: 1px solid var(--gold);
  border-radius: 5px;
  color: var(--gold-light);
  font-size: 0.98rem;
  line-height: 1;
  font-family: var(--font-display);
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
  gap: 26px;
  margin-left: 26px;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-list a {
  position: relative;
  display: inline-block;
  padding: 8px 2px;
  font-size: 0.96rem;
  color: var(--text);
  transition: color 0.26s ease;
}
.nav-list a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 22px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  transform: translateX(-50%) scaleX(0);
  transition: transform 0.3s ease;
  transform-origin: center;
}
.nav-list a:hover {
  color: var(--primary);
}
.nav-list a:hover::after,
.nav-list a.is-active::after {
  transform: translateX(-50%) scaleX(1);
}
.nav-list a.is-active {
  color: var(--primary);
  font-weight: 600;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-login {
  padding: 8px 10px;
  color: var(--primary);
  font-weight: 500;
  border-radius: 6px;
  transition: background 0.24s ease;
}
.nav-login:hover {
  background: rgba(18, 63, 52, 0.06);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  padding: 12px 22px;
  cursor: pointer;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}
.btn--nav {
  background: var(--primary);
  color: var(--gold-light);
  border-color: var(--gold);
  padding: 9px 16px;
  font-size: 0.92rem;
}
.btn--nav:hover {
  background: var(--primary-deep);
  box-shadow: 0 6px 16px rgba(11, 43, 36, 0.16);
  color: #fff;
}
.btn--light {
  background: transparent;
  border: 1px solid rgba(231, 213, 176, 0.9);
  color: var(--gold-light);
}
.btn--light:hover {
  background: rgba(231, 213, 176, 0.12);
  color: #fff;
}
.btn--gold {
  background: var(--gold);
  border-color: var(--gold-light);
  color: var(--primary-deep);
  padding: 16px 30px;
  font-size: 1rem;
}
.btn--gold:hover {
  background: var(--gold-light);
  box-shadow: 0 8px 24px rgba(190, 154, 97, 0.32);
  color: #062019;
  transform: translateY(-2px);
}
.btn:focus-visible {
  outline: 3px solid rgba(190, 154, 97, 0.6);
  outline-offset: 2px;
}
.nav-toggle-input,
.nav-toggle {
  display: none;
}

/* category hero */
.category-hero {
  background: var(--paper);
  padding: 72px 0 84px;
  border-bottom: 1px solid rgba(15, 59, 50, 0.08);
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  font-size: 0.86rem;
  color: var(--muted);
}
.breadcrumb a {
  color: var(--primary);
  font-weight: 500;
  transition: color 0.2s ease;
}
.breadcrumb a:hover {
  color: var(--gold);
}
.breadcrumb [aria-current="page"] {
  font-weight: 600;
  color: var(--text);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(15, 59, 50, 0.18);
  background: rgba(255, 253, 248, 0.8);
  border-radius: 999px;
  color: var(--primary-deep);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 5px 13px;
  margin-bottom: 20px;
}
.category-hero h1 {
  max-width: 900px;
  font-size: clamp(2.2rem, 5vw, 4rem);
  letter-spacing: 0.03em;
}
.page-lead {
  max-width: 860px;
  margin-top: 22px;
  font-size: 1.08rem;
  color: var(--muted);
  line-height: 1.9;
}
.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.hero-chips span {
  display: inline-block;
  font-size: 0.9rem;
  color: var(--primary);
  background: #eee8dd;
  border: 1px solid rgba(18, 63, 52, 0.1);
  border-radius: 5px;
  padding: 6px 15px;
}

/* green overview panel */
.overview-section {
  padding: 0 0 86px;
}
.green-panel {
  position: relative;
  background:
    radial-gradient(circle at 88% 0%, rgba(231, 213, 176, 0.14), transparent 34%),
    var(--primary-deep);
  border-radius: 16px;
  border: 1px solid rgba(190, 154, 97, 0.35);
  overflow: hidden;
  padding: 48px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 52px;
  box-shadow: 0 22px 52px rgba(11, 43, 36, 0.18);
}
.green-panel h2 {
  color: var(--gold-light);
  font-size: clamp(1.55rem, 2.6vw, 2.25rem);
  line-height: 1.35;
  margin-bottom: 18px;
}
.green-panel p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 1rem;
  margin-bottom: 17px;
}
.blockquote {
  border-left: 3px solid var(--gold);
  background: rgba(255, 255, 255, 0.06);
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  margin: 18px 0 4px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.02rem;
}
.long-run-board {
  background: rgba(255, 253, 248, 0.06);
  border: 1px solid rgba(231, 213, 176, 0.24);
  border-radius: 14px;
  padding: 28px;
  display: flex;
  flex-direction: column;
}
.long-run-board h3 {
  color: #fff;
  font-size: 1.08rem;
  margin-bottom: 8px;
}
.long-run-sub {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.87rem;
  margin-bottom: 24px;
  line-height: 1.6;
}
.freq-row {
  display: grid;
  grid-template-columns: 42px 1fr 76px;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.result-name {
  color: var(--gold-light);
  font-weight: 700;
  font-size: 1rem;
}
.freq-row b {
  color: #fff;
  font-weight: 600;
  text-align: right;
  font-size: 0.96rem;
  letter-spacing: 0.02em;
}
.bar-track {
  height: 7px;
  border-radius: 99px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.14);
}
.bar-fill {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
}
.mini-note {
  margin-top: 16px;
  font-size: 0.83rem;
  color: rgba(255, 255, 255, 0.52);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 14px;
}

/* split long-read */
.read-long-section {
  padding: 0 0 88px;
}
.split-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 68px;
  align-items: center;
}
.split-copy h2 {
  margin: 6px 0 22px;
  font-size: clamp(1.7rem, 2.8vw, 2.35rem);
}
.split-copy p {
  color: var(--muted);
  margin-bottom: 18px;
}
.split-quote {
  border-left: 3px solid var(--gold);
  background: #ebe2d1;
  border-radius: 0 10px 10px 0;
  padding: 18px 22px;
  margin: 20px 0;
  color: var(--primary);
  font-family: var(--font-display);
  font-size: 1.08rem;
}
.split-visual img {
  width: 100%;
  aspect-ratio: 5 / 4;
  border-radius: 14px;
  object-fit: cover;
  border: 1px solid rgba(15, 59, 50, 0.1);
  box-shadow: 0 18px 44px rgba(15, 59, 50, 0.13);
}
.photo-note {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 22px;
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 8px 22px rgba(15, 59, 50, 0.06);
}
.photo-note strong {
  color: var(--primary);
  font-size: 1rem;
}
.photo-note span {
  color: var(--muted);
  font-size: 0.9rem;
}

/* three lens cards */
.lens-section {
  background: #fffdf8;
  padding: 84px 0;
  border-top: 1px solid var(--line);
}
.lens-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.lens-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px 32px;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.lens-card:hover {
  transform: translateY(-4px);
  border-color: rgba(190, 154, 97, 0.65);
  box-shadow: 0 18px 34px rgba(15, 59, 50, 0.1);
}
.lens-index {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--gold);
  display: block;
  margin-bottom: 18px;
  line-height: 1;
}
.lens-card h3 {
  font-size: 1.35rem;
  margin-bottom: 10px;
}
.lens-card p {
  color: var(--muted);
  font-size: 0.96rem;
}

/* matrix table */
.matrix-section {
  padding: 84px 0;
}
.matrix-grid {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px 0 6px;
  margin-top: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.table-scroll {
  overflow-x: auto;
}
table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}
th {
  background: var(--primary);
  color: var(--gold-light);
  font-size: 0.98rem;
  font-weight: 600;
  text-align: left;
  padding: 16px 20px;
  letter-spacing: 0.04em;
}
td {
  border-bottom: 1px solid var(--line);
  padding: 16px 20px;
  color: var(--text);
  vertical-align: top;
}
td:first-child {
  font-weight: 600;
  color: var(--primary);
}
tr:last-child td {
  border-bottom: none;
}
tbody tr {
  transition: background 0.2s ease;
}
tbody tr:hover {
  background: rgba(18, 63, 52, 0.03);
}
.table-foot {
  padding: 18px 22px 20px;
  border-top: 1px solid var(--line);
  font-size: 0.87rem;
  color: var(--muted);
}

/* quote banner */
.quote-banner {
  background:
    linear-gradient(120deg, rgba(11, 43, 36, 0.94), rgba(18, 63, 52, 0.86)),
    url("/assets/images/backpic/back-3.webp") center / cover no-repeat;
  padding: 92px 0;
  color: rgba(255, 255, 255, 0.84);
}
.quote-inner {
  max-width: 820px;
}
.quote-inner .eyebrow {
  color: var(--gold);
}
.quote-inner h2 {
  color: #fff;
  font-size: clamp(1.85rem, 3.4vw, 2.9rem);
  margin: 8px 0 18px;
}
.quote-inner p {
  font-size: 1.04rem;
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.82);
}

/* FAQ */
.faq-section {
  background: #fffdf8;
  padding: 86px 0;
  border-top: 1px solid var(--line);
}
.faq-wrap {
  max-width: 920px;
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item:last-child {
  border-bottom: none;
}
.faq-item summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  padding: 22px 4px;
  color: var(--primary);
  font-size: 1.08rem;
  font-weight: 600;
  transition: color 0.2s ease;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::before {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex: none;
  border: 1px solid rgba(190, 154, 97, 0.55);
  border-radius: 6px;
  color: var(--gold);
  font-size: 1.2rem;
  font-weight: 400;
  line-height: 1;
  background: rgba(190, 154, 97, 0.08);
  transition: all 0.25s ease;
}
.faq-item[open] summary::before {
  content: "–";
  background: var(--gold);
  color: var(--primary-deep);
}
.faq-item summary:hover {
  color: var(--primary-soft);
}
.faq-item summary:focus-visible,
.nav-list a:focus-visible,
.brand:focus-visible,
.nav-login:focus-visible {
  outline: 3px solid rgba(190, 154, 97, 0.5);
  outline-offset: 2px;
}
.faq-answer {
  padding: 2px 0 26px 44px;
  max-width: 760px;
  color: var(--muted);
}

/* final CTA */
.final-cta {
  padding: 76px 0 92px;
  background: var(--paper);
}
.final-box {
  background: var(--primary-deep);
  border-radius: 16px;
  padding: 58px 58px 52px;
  display: grid;
  grid-template-columns: 1.5fr auto;
  gap: 38px;
  align-items: center;
  border-top: 3px solid var(--gold);
  box-shadow: 0 26px 60px rgba(11, 43, 36, 0.2);
}
.final-copy h2 {
  color: #fff;
  font-size: clamp(1.7rem, 2.6vw, 2.3rem);
  margin-bottom: 10px;
}
.final-copy p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 1rem;
  max-width: 580px;
}
.final-sub {
  margin-top: 16px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.46);
}

/* footer */
.footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 22px;
  border-top: 3px solid rgba(190, 154, 97, 0.55);
}
.footer-main {
  display: grid;
  grid-template-columns: 1.8fr 0.8fr 1.2fr;
  gap: 48px;
  padding-bottom: 42px;
}
.footer .brand {
  color: #fff;
}
.footer-about {
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.92rem;
  margin-top: 16px;
  max-width: 420px;
}
.footer h4 {
  color: var(--gold-light);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  margin: 4px 0 16px;
  letter-spacing: 0.06em;
}
.footer-links {
  display: grid;
  gap: 10px;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.72);
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.footer-links a:hover {
  color: var(--gold-light);
  padding-left: 4px;
}
.footer-tip {
  color: rgba(255, 255, 255, 0.52);
  font-size: 0.86rem;
  line-height: 1.8;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.83rem;
  color: rgba(255, 255, 255, 0.44);
}

/* responsive */
@media (max-width: 1024px) {
  .green-panel {
    grid-template-columns: 1fr;
    padding: 38px 34px;
  }
  .lens-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .lens-card {
    padding: 26px 22px;
  }
  .final-box {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 800px) {
  .nav-toggle-input,
  .nav-toggle {
    display: block;
  }
  .site-header .container {
    justify-content: space-between;
  }
  .nav-toggle {
    position: relative;
    z-index: 130;
    width: 42px;
    height: 42px;
    flex: none;
    margin-left: auto;
  }
  .nav-toggle span,
  .nav-toggle span::before,
  .nav-toggle span::after {
    content: "";
    position: absolute;
    left: 10px;
    width: 22px;
    height: 2px;
    border-radius: 3px;
    background: var(--primary);
    transition: background 0.2s ease, transform 0.25s ease, top 0.25s ease, bottom 0.25s ease;
  }
  .nav-toggle span {
    top: 20px;
  }
  .nav-toggle span::before {
    top: -7px;
  }
  .nav-toggle span::after {
    top: 7px;
  }
  .nav-toggle-input:checked ~ .nav-toggle span {
    background: transparent;
  }
  .nav-toggle-input:checked ~ .nav-toggle span::before {
    top: 0;
    transform: rotate(45deg);
  }
  .nav-toggle-input:checked ~ .nav-toggle span::after {
    top: 0;
    transform: rotate(-45deg);
  }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0;
    margin-left: 0;
    background: rgba(255, 253, 248, 0.98);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 30px rgba(15, 59, 50, 0.1);
    padding: 18px 24px 26px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    pointer-events: none;
  }
  .nav-toggle-input:checked ~ .main-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }
  .nav-list a {
    font-size: 1.02rem;
  }
  .nav-actions {
    width: 100%;
    margin-top: 18px;
    border-top: 1px solid var(--line);
    padding-top: 18px;
    flex-wrap: wrap;
  }
  .split-grid {
    grid-template-columns: 1fr;
    gap: 38px;
  }
  .lens-grid {
    grid-template-columns: 1fr;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 34px;
  }
  .category-hero {
    padding: 52px 0 62px;
  }
}
@media (max-width: 600px) {
  .container {
    padding-inline: 20px;
  }
  .category-hero h1 {
    font-size: clamp(2rem, 9vw, 2.9rem);
  }
  .brand {
    font-size: 1rem;
  }
  .brand-mark {
    width: 26px;
    height: 26px;
  }
  .green-panel,
  .matrix-grid,
  .final-box {
    border-radius: 12px;
    padding: 28px 20px;
  }
  .green-panel {
    padding: 28px 20px;
  }
  .freq-row {
    grid-template-columns: 32px 1fr 64px;
  }
  .footer-bottom {
    flex-direction: column;
  }
  .faq-answer {
    padding-left: 0;
    padding-top: 4px;
  }
}

/* roulang page: category3 */
:root {
  --green-900: #0B2B24;
  --green-800: #123F34;
  --green-700: #1B4D40;
  --green-600: #2C6657;
  --brass: #BE9A61;
  --champagne: #E7D5B0;
  --paper: #F6F1E7;
  --card: #FFFDF8;
  --cream-deep: #F0E7D7;
  --ink: #1E2A26;
  --muted: #6B766F;
  --line: rgba(15, 59, 50, 0.14);
  --radius-sm: 4px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --shadow-soft: 0 14px 34px rgba(15, 59, 50, 0.08);
  --shadow-card: 0 20px 50px rgba(15, 59, 50, 0.1);
  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  display: block;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  line-height: 1.32;
  color: var(--green-900);
  margin-top: 0;
  font-weight: 600;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 4.1rem);
  letter-spacing: 0.02em;
  margin-bottom: 1.1rem;
}

h2 {
  font-size: clamp(1.65rem, 3vw, 2.5rem);
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.2rem;
  letter-spacing: 0.02em;
  margin-bottom: 0.45rem;
}

p {
  margin: 0 0 1rem;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

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

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

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(1180px, calc(100% - 2.5rem));
  margin-inline: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.96rem;
  line-height: 1.2;
  border: 1px solid transparent;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--gold {
  background: var(--brass);
  color: var(--green-900);
  border-color: var(--brass);
  box-shadow: 0 8px 24px rgba(190, 154, 97, 0.28);
}

.btn--gold:hover {
  background: var(--champagne);
  color: var(--green-900);
  border-color: var(--champagne);
  box-shadow: 0 12px 28px rgba(190, 154, 97, 0.32);
}

.btn--ghost-light {
  background: transparent;
  color: #f4ead7;
  border-color: rgba(231, 213, 176, 0.8);
}

.btn--ghost-light:hover {
  background: rgba(231, 213, 176, 0.14);
  color: #fff;
  border-color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--green-800);
  border-color: rgba(18, 63, 52, 0.5);
}

.btn--outline:hover {
  background: var(--champagne);
  color: var(--green-900);
  border-color: var(--champagne);
}

.btn--cta {
  background: var(--brass);
  color: var(--green-900);
  border-color: var(--champagne);
  padding: 1.1rem 2.3rem;
  font-size: 1.05rem;
  box-shadow: 0 12px 34px rgba(11, 43, 36, 0.24);
}

.btn--cta:hover {
  background: #d6bb8b;
  box-shadow: 0 14px 36px rgba(11, 43, 36, 0.3);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  color: var(--brass);
  text-transform: uppercase;
  margin-bottom: 0.7rem;
  font-weight: 600;
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--brass);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  height: 76px;
  background: rgba(255, 253, 248, 0.97);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 1.8rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: 1.38rem;
  font-weight: 700;
  color: var(--green-900);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 6px;
  background: var(--green-800);
  color: var(--champagne);
  border: 1px solid rgba(231, 213, 176, 0.55);
  font-family: var(--font-display);
  font-size: 1.02rem;
  line-height: 1;
}

.main-nav {
  display: flex;
  flex: 1;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2.1rem;
}

.nav-list a {
  position: relative;
  color: var(--ink);
  font-weight: 500;
  font-size: 0.96rem;
  padding: 0.3rem 0.05rem;
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -3px;
  width: 0;
  height: 2px;
  background: var(--brass);
  transform: translateX(-50%);
  transition: width 0.28s ease;
}

.nav-list a:hover::after {
  width: 22px;
}

.nav-list a.is-active {
  color: var(--green-800);
}

.nav-list a.is-active::after {
  width: 18px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.05rem;
}

.nav-login {
  color: var(--green-800);
  font-size: 0.94rem;
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.nav-login:hover {
  border-bottom-color: var(--green-800);
}

.btn--nav {
  background: var(--green-800);
  color: var(--champagne);
  border: 1px solid rgba(190, 154, 97, 0.65);
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
}

.btn--nav:hover {
  background: var(--green-900);
  color: #fff;
}

.nav-toggle-input,
.nav-toggle {
  display: none;
}

.section {
  padding: clamp(3.4rem, 7vw, 5.6rem) 0;
}

.page-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 520px;
  color: #f5f2ea;
  background:
    linear-gradient(118deg, rgba(6, 29, 24, 0.9) 0%, rgba(11, 43, 36, 0.78) 48%, rgba(18, 63, 52, 0.52) 100%),
    url("/assets/images/backpic/back-2.webp") center center / cover no-repeat;
  text-align: center;
}

.page-hero .container {
  padding-top: 90px;
  padding-bottom: 70px;
}

.page-hero h1 {
  color: #fff;
  font-size: clamp(2.6rem, 6.5vw, 4.4rem);
  margin-bottom: 0.8rem;
}

.page-hero__lead {
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.08rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.9);
}

.page-hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-size: 0.86rem;
  color: rgba(231, 213, 176, 0.8);
  margin-bottom: 2.2rem;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.82);
  transition: color 0.2s ease;
}

.breadcrumb a:hover {
  color: #fff;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2.5rem 4rem;
  margin: 3rem auto 0;
  padding-top: 1.8rem;
  max-width: 740px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.hero-stats div {
  text-align: center;
}

.hero-stats dt {
  font-size: 0.84rem;
  letter-spacing: 0.1em;
  color: var(--champagne);
  margin-bottom: 0.15rem;
}

.hero-stats dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.45rem;
  color: #fff;
  font-weight: 600;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 2.4rem;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  margin-bottom: 0;
}

.compare-section {
  background: var(--card);
}

.compare-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--card);
  box-shadow: var(--shadow-soft);
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  min-width: 740px;
  border-collapse: collapse;
  font-size: 0.98rem;
}

thead th {
  background: var(--green-800);
  color: var(--champagne);
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 1.1rem 1.2rem;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  white-space: nowrap;
  text-align: left;
}

thead th:last-child {
  border-right: 0;
}

tbody td {
  padding: 1.1rem 1.2rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  vertical-align: middle;
}

tbody td:last-child {
  border-right: 0;
}

tbody tr:last-child td {
  border-bottom: 0;
}

tbody td:first-child {
  font-weight: 700;
  color: var(--green-900);
  white-space: nowrap;
}

.feature-col {
  background: rgba(190, 154, 97, 0.1);
  box-shadow: inset 3px 0 0 var(--brass);
}

thead th.feature-col {
  background: var(--green-600);
  color: #fff;
  box-shadow: none;
}

.table-footnote {
  margin: 1.2rem 0 0;
  font-size: 0.86rem;
  color: var(--muted);
}

.growth-section {
  background: var(--paper);
}

.growth-panel {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  background: var(--card);
  border: 1px solid rgba(190, 154, 97, 0.42);
  border-radius: 24px;
  box-shadow: var(--shadow-card);
  padding: clamp(2rem, 5vw, 4rem);
}

.growth-copy p:last-of-type {
  margin-bottom: 0;
  color: var(--muted);
}

.growth-steps {
  border-top: 1px solid var(--line);
  margin-top: 0.4rem;
}

.growth-steps li {
  display: flex;
  align-items: flex-start;
  gap: 1.4rem;
  padding: 1.55rem 0 1.55rem 0;
  border-bottom: 1px solid var(--line);
}

.growth-steps li span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(231, 213, 176, 0.4);
  border: 1px solid rgba(190, 154, 97, 0.45);
  color: var(--green-900);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
}

.growth-steps li h3 {
  margin-bottom: 0.3rem;
}

.growth-steps li p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.preview-section {
  background: var(--card);
}

.preview-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.preview-heading p:not(.eyebrow) {
  color: var(--muted);
  margin-bottom: 0;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
}

.media-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.media-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 46px rgba(15, 59, 50, 0.1);
  border-color: rgba(190, 154, 97, 0.55);
}

.media-card__cover {
  position: relative;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--green-800), var(--green-600));
  overflow: hidden;
}

.media-card__cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-card.is-locked .media-card__cover img {
  filter: blur(1px) saturate(0.9);
}

.badge {
  position: absolute;
  top: 0.9rem;
  left: 0.9rem;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(255, 253, 248, 0.88);
  color: var(--green-900);
  border-radius: 4px;
  font-size: 0.78rem;
  padding: 0.25rem 0.7rem;
  letter-spacing: 0.04em;
  border: 1px solid var(--line);
}

.badge--brass {
  background: linear-gradient(135deg, var(--champagne), var(--brass));
  color: var(--green-900);
  border-color: transparent;
  font-weight: 600;
}

.media-card__body {
  padding: 1.4rem 1.4rem 1.2rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.7rem;
  flex: 1;
}

.media-card__body h3 {
  line-height: 1.5;
  margin: 0;
}

.media-card__body p {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.8;
}

.locked-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: auto;
  padding-top: 0.6rem;
  color: var(--green-800);
  font-weight: 600;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--brass);
  line-height: 1.4;
}

.locked-link svg {
  width: 17px;
  height: 17px;
}

.locked-link:hover {
  color: var(--green-600);
}

.service-section {
  background: var(--cream-deep);
}

.service-grid {
  display: grid;
  grid-template-columns: 1fr 1.08fr;
  gap: 1.6rem;
  align-items: stretch;
}

.service-process,
.service-rules {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(1.8rem, 4vw, 3rem);
  box-shadow: 0 8px 26px rgba(15, 59, 50, 0.04);
}

.service-process p:not(.eyebrow),
.service-rules p:not(.eyebrow) {
  color: var(--muted);
}

.process-list {
  margin-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.process-list li {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}

.process-list .process-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--green-800);
  color: var(--champagne);
  font-size: 0.85rem;
  font-weight: 600;
}

.process-list li p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.8;
}

.process-list li h3 {
  margin-bottom: 0.2rem;
  color: var(--green-900);
  font-size: 1.1rem;
}

.rule-list {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.4rem;
}

.rule-list li {
  position: relative;
  padding-left: 1.3rem;
  color: #516158;
  line-height: 1.8;
}

.rule-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.82rem;
  width: 7px;
  height: 7px;
  background: var(--brass);
  border-radius: 1px;
  transform: rotate(45deg);
}

.faq-section {
  background: var(--paper);
}

.faq-container {
  max-width: 870px;
  margin-inline: auto;
}

.faq-container .section-heading {
  margin-inline: 0;
}

.faq-list {
  margin-top: 1.8rem;
}

details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-bottom: 0.85rem;
  padding: 0 1.4rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

details[open] {
  border-color: rgba(190, 154, 97, 0.5);
  box-shadow: 0 10px 30px rgba(15, 59, 50, 0.06);
}

summary {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1.15rem 0;
  cursor: pointer;
  font-weight: 650;
  font-family: var(--font-display);
  list-style: none;
  color: var(--green-900);
  line-height: 1.55;
}

summary::-webkit-details-marker {
  display: none;
}

.q-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: 50%;
  background: var(--green-800);
  color: var(--champagne);
}

.q-mark--a {
  background: var(--champagne);
  color: var(--green-900);
}

.faq-answer {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0 0 1.35rem;
  margin: -0.15rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.9;
}

.faq-answer p {
  margin: 0;
}

.cta-block {
  background: var(--green-900);
  color: rgba(255, 255, 255, 0.88);
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
}

.cta-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

.cta-inner h2 {
  color: #fff;
  margin-bottom: 0.7rem;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.78);
  max-width: 660px;
  margin-bottom: 1rem;
}

.cta-actions {
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.85rem;
}

.cta-tip {
  font-size: 0.83rem;
  color: rgba(231, 213, 176, 0.75) !important;
  margin: 0;
}

.footer {
  background: var(--green-900);
  color: rgba(255, 255, 255, 0.73);
  font-size: 0.93rem;
  padding: 4rem 0 1.6rem;
}

.footer .brand {
  color: #fff;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.6fr 0.9fr 1.4fr;
  gap: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-about {
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.9;
  max-width: 430px;
}

.footer h4 {
  color: var(--champagne);
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: 0.03em;
  font-size: 0.98rem;
  margin-bottom: 1rem;
}

.footer-links {
  display: grid;
  gap: 0.7rem;
}

.footer-links a {
  display: inline-block;
  color: rgba(255, 255, 255, 0.72);
  transition: color 0.2s ease;
}

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

.footer-tip {
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.8;
  margin: 0;
  font-size: 0.9rem;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 1.5rem;
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.55);
}

a:focus-visible,
summary:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

@media (max-width: 1050px) {
  .preview-grid {
    grid-template-columns: 1fr 1fr;
  }
  .growth-panel {
    grid-template-columns: 1fr;
  }
  .cta-inner {
    grid-template-columns: 1fr;
    gap: 1.8rem;
  }
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    cursor: pointer;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 6px;
  }

  .nav-toggle span,
  .nav-toggle::before,
  .nav-toggle::after {
    content: "";
    display: block;
    height: 2px;
    width: 22px;
    background: var(--green-900);
    margin-inline: auto;
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.2s ease;
  }

  .nav-toggle span {
    margin-block: -2px;
  }

  .nav-toggle-input:checked ~ .nav-toggle::before {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle-input:checked ~ .nav-toggle span {
    opacity: 0;
  }

  .nav-toggle-input:checked ~ .nav-toggle::after {
    transform: translateY(-7px) rotate(-45deg);
  }

  .main-nav {
    position: fixed;
    top: 76px;
    right: 0;
    z-index: 59;
    width: min(380px, 94vw);
    height: calc(100dvh - 76px);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 2.2rem;
    background: var(--card);
    padding: 2.4rem 1.8rem 2rem;
    border-left: 1px solid var(--line);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.32s ease, opacity 0.3s ease, visibility 0.32s;
    overflow-y: auto;
    box-shadow: -20px 0 40px rgba(15, 59, 50, 0.08);
  }

  .nav-toggle-input:checked ~ .main-nav {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.3rem;
  }

  .nav-actions {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
  }

  .nav-actions .btn {
    width: 100%;
  }

  .page-hero .nav-toggle span,
  .page-hero .nav-toggle::before,
  .page-hero .nav-toggle::after {
    background: var(--ink);
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .service-process,
  .service-rules {
    padding: 1.8rem;
  }
}

@media (max-width: 700px) {
  .container {
    width: min(1180px, calc(100% - 1.5rem));
  }

  .page-hero {
    min-height: 480px;
  }

  .page-hero .container {
    padding-top: 110px;
    padding-bottom: 58px;
  }

  .page-hero__lead {
    font-size: 1rem;
  }

  .page-hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-hero__actions .btn {
    width: 100%;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1rem;
    margin-top: 2.2rem;
    padding-top: 1.4rem;
    align-items: center;
  }

  .preview-heading {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.2rem;
  }

  .preview-grid {
    grid-template-columns: 1fr;
  }

  .growth-panel {
    border-radius: 14px;
    padding: 1.5rem;
  }

  .growth-steps li {
    flex-direction: column;
    gap: 0.75rem;
    padding: 1.3rem 0;
  }

  .growth-steps li span {
    width: 34px;
    height: 34px;
  }

  .process-list li {
    flex-direction: column;
    gap: 0.4rem;
  }

  .faq-answer {
    flex-direction: column;
    gap: 0.2rem;
  }

  details {
    padding: 0 1rem;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
  }

  .cta-block {
    padding-bottom: 3.4rem;
  }

  .cta-inner {
    gap: 1.4rem;
  }

  .cta-actions {
    align-items: stretch;
  }

  .btn--cta {
    width: 100%;
  }
}