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

:root {
    --page: #E4E8EA;
    --deep-page: #C8D0D4;
    --content: #F2F5F6;
    --secondary: #D6DDE0;
    --ink: #1E2A2E;
    --text: #2E3C42;
    --muted: #5A6A70;
    --soft: #7A8A90;
    --orange: #5A7A80;
    --copper: #B88860;
    --line: rgba(30,42,46,0.12);
    --focus-line: rgba(90,122,128,0.48);
    --shadow: 0 12px 28px rgba(30,42,46,0.08);
}

html {
    scroll-behavior: smooth;
    background: var(--page);
}

body {
    margin: 0;
    min-width: 0;
    overflow-x: hidden;
    background: var(--page);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.7;
    text-rendering: optimizeLegibility;
}

body.panel-open {
    overflow: hidden;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
    object-fit: contain;
    object-position: center;
}

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

button,
input {
    font: inherit;
}

button {
    color: inherit;
}

a,
button,
input {
    -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 3px solid var(--focus-line);
    outline-offset: 3px;
}

.skip-link {
    position: fixed;
    left: 16px;
    top: 8px;
    z-index: 1000;
    transform: translateY(-140%);
    padding: 8px 12px;
    background: var(--content);
    color: var(--ink);
    border: 1px solid var(--orange);
}

.skip-link:focus {
    transform: translateY(0);
}

.top-strip {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 120;
    height: 20px;
    background: var(--orange);
    color: var(--content);
    font-size: 12px;
}

.top-strip__inner,
.site-header__inner,
.quick-nav__inner,
.site-footer__inner,
.content-width {
    width: min(960px, calc(100% - 32px));
    margin: 0 auto;
}

.top-strip__inner {
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.top-search-button {
    min-height: 20px;
    padding: 0 2px;
    border: 0;
    background: transparent;
    color: var(--page);
    cursor: pointer;
    font-size: 12px;
}

.site-header {
    position: fixed;
    inset: 20px 0 auto 0;
    z-index: 115;
    height: 54px;
    background: var(--content);
    border-bottom: 1px solid var(--orange);
}

.site-header__inner {
    height: 54px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand-link {
    min-width: 44px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}

.brand-logo,
.footer-logo,
.panel-logo {
    width: auto;
    height: 24px;
    max-width: 112px;
    object-fit: contain;
}

.brand-fallback,
.footer-logo-fallback,
.panel-logo-fallback {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 24px;
    color: var(--ink);
    font-size: 16px;
    font-weight: 800;
    letter-spacing: .03em;
}

.site-header__actions {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.app-link,
.menu-button {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
}

.app-link {
    padding: 0 14px;
    border: 1px solid var(--orange);
    background: var(--content);
    color: var(--ink);
}

.menu-button {
    padding: 0 14px;
    border: 1px solid var(--ink);
    background: var(--ink);
    color: var(--content);
}

.app-link:hover,
.app-link:focus-visible {
    background: var(--secondary);
}

.menu-button:hover,
.menu-button:focus-visible {
    background: var(--orange);
    border-color: var(--orange);
}

.quick-nav {
    position: fixed;
    inset: 74px 0 auto 0;
    z-index: 110;
    height: 46px;
    background: var(--content);
    border-bottom: 1px solid var(--line);
}

.quick-nav__inner {
    height: 46px;
    display: flex;
    align-items: center;
    gap: 26px;
}

.quick-nav__item {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--ink);
    font-size: 13px;
}

.quick-nav__square {
    width: 18px;
    height: 18px;
    flex: 0 0 18px;
    border: 1px solid var(--ink);
    border-radius: 6px;
    background: transparent;
}

.quick-nav__item.is-current .quick-nav__square,
.quick-nav__item:hover .quick-nav__square {
    background: var(--orange);
    border-color: var(--orange);
}

.site-main {
    min-height: 70vh;
    padding-top: 120px;
    padding-bottom: 72px;
}

.page-intro {
    width: min(960px, calc(100% - 32px));
    margin: 0 auto;
    padding: 42px 0 28px;
}

.page-intro--compact {
    padding-bottom: 18px;
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--copper);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .08em;
}

h1,
h2,
h3,
p {
    overflow-wrap: anywhere;
}

h1,
h2,
h3 {
    margin-top: 0;
    color: var(--ink);
    line-height: 1.3;
}

h1 {
    margin-bottom: 16px;
    font-size: 24px;
}

h2 {
    margin-bottom: 12px;
    font-size: 20px;
}

h3 {
    margin-bottom: 8px;
    font-size: 16px;
}

p {
    margin-top: 0;
    margin-bottom: 14px;
}

.lead {
    max-width: 760px;
    color: var(--muted);
    font-size: 16px;
}

.small-note {
    color: var(--soft);
    font-size: 13px;
}

.btn-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
}

.btn {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    border-radius: 6px;
    font-size: 14px;
    white-space: nowrap;
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(26,22,18,.10);
}

.btn--primary {
    border: 1px solid transparent;
    background: linear-gradient(135deg,#5A7A80 0%,#6A8890 100%);
    color: #F2F5F6;
}

.btn--secondary {
    border: 1px solid var(--orange);
    background: var(--content);
    color: var(--ink);
}

.section {
    width: min(960px, calc(100% - 32px));
    margin: 0 auto;
    padding: 34px 0;
}

.section + .section {
    border-top: 1px solid var(--line);
}

.section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 18px;
}

.section-head p {
    max-width: 600px;
    margin-bottom: 0;
    color: var(--muted);
}

.media-slot {
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--secondary);
    border: 1px solid var(--line);
}

.media-slot img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

.index-cues {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 18px;
}

.index-cues span {
    display: inline-flex;
    align-items: center;
    min-height: 32px;
    padding: 0 12px;
    border-radius: 8px;
    background: var(--orange);
    color: var(--content);
    font-size: 13px;
    font-weight: 700;
}

.home-opening {
    padding-top: 42px;
}

.home-opening .lead {
    max-width: 720px;
}

.slant-record {
    display: grid;
    grid-template-columns: minmax(220px, 300px) 1fr;
    gap: 30px;
    align-items: center;
    padding: 20px;
    background: var(--content);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.slant-record__media {
    height: 176px;
    min-height: 176px;
    clip-path: polygon(0 0, 100% 0, 88% 100%, 0 100%);
    background: var(--secondary);
}

.slant-record__copy {
    padding-right: 10px;
}

.dual-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.dual-card {
    min-width: 0;
    padding: 22px;
    background: var(--content);
    border: 1px solid var(--line);
    border-top: 3px solid var(--orange);
    border-radius: 6px;
}

.dual-card .media-slot {
    height: 168px;
    margin-bottom: 18px;
}

.book-spreads {
    display: grid;
    grid-template-columns: 1.08fr .92fr;
    gap: 18px;
}

.book-sheet {
    position: relative;
    min-width: 0;
    padding: 24px;
    background: var(--content);
    border: 1px solid var(--line);
    border-left: 6px solid var(--copper);
    border-radius: 2px 5px 5px 2px;
}

.book-sheet:first-child::after {
    content: "";
    position: absolute;
    top: 14px;
    bottom: 14px;
    right: 10px;
    width: 1px;
    background: var(--line);
}

.book-sheet .media-slot {
    height: 170px;
    margin-bottom: 18px;
}

.rack-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    align-items: stretch;
}

.rack-card {
    padding: 24px;
    background: var(--deep-page);
    border-bottom: 4px solid var(--orange);
}

.rack-head-media {
    height: 172px;
    margin-bottom: 16px;
}

.period-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
}

.period-item {
    min-width: 0;
    padding: 20px;
    background: var(--content);
    border: 1px solid var(--line);
}

.period-item strong {
    display: block;
    margin-bottom: 8px;
    color: var(--copper);
}

.period-media {
    height: 168px;
    margin-bottom: 16px;
}

.status-list {
    display: grid;
    gap: 10px;
}

.status-row {
    display: grid;
    grid-template-columns: 118px 1fr;
    gap: 18px;
    align-items: center;
    padding: 14px 16px;
    background: var(--content);
    border: 1px solid var(--line);
}

.status-row strong {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 32px;
    padding: 0 10px;
    background: var(--ink);
    color: var(--content);
    font-size: 13px;
}

.status-row:nth-child(2) strong {
    background: var(--orange);
}

.status-row:nth-child(3) strong {
    background: var(--copper);
}

.app-feature {
    display: grid;
    grid-template-columns: minmax(190px, 270px) 1fr;
    gap: 28px;
    align-items: center;
    padding: 24px;
    background: var(--content);
    border: 1px solid var(--line);
}

.app-feature__media {
    height: 320px;
    min-height: 240px;
}

.app-icon-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.app-icon-row .app-icon {
    width: 48px;
    height: 48px;
    flex: 0 0 48px;
    object-fit: contain;
}

.guide-points {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px 22px;
}

.guide-point {
    padding: 18px 0;
    border-top: 1px solid var(--line);
}

.faq-mini {
    display: grid;
    gap: 10px;
}

.faq-mini details {
    background: var(--content);
    border: 1px solid var(--line);
}

.faq-mini summary {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 12px 16px;
    color: var(--ink);
    font-weight: 700;
    cursor: pointer;
}

.faq-mini p {
    padding: 0 16px 16px;
    margin: 0;
    color: var(--muted);
}

.brand-summary {
    padding: 26px;
    background: var(--ink);
    color: var(--page);
    border-left: 5px solid var(--orange);
}

.brand-summary h2,
.brand-summary h3 {
    color: var(--content);
}

.brand-summary p {
    color: var(--page);
}

.inner-split {
    width: min(960px, calc(100% - 32px));
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(250px, 320px);
    gap: 28px;
    padding-bottom: 36px;
}

.inner-split--reverse {
    grid-template-columns: minmax(250px, 320px) minmax(0, 1fr);
}

.inner-split__aside {
    min-width: 0;
}

.inner-split__aside .media-slot {
    position: sticky;
    top: 144px;
    height: 230px;
}

.article-flow {
    min-width: 0;
}

.article-flow section {
    padding: 24px 0;
    border-top: 1px solid var(--line);
}

.article-flow section:first-child {
    border-top: 0;
    padding-top: 0;
}

.article-flow ul {
    margin: 10px 0 0;
    padding-left: 1.2em;
}

.article-flow li + li {
    margin-top: 8px;
}

.article-flow a.text-link {
    color: var(--copper);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.slant-page {
    width: min(960px, calc(100% - 32px));
    margin: 0 auto;
    padding-bottom: 34px;
}

.slant-page__hero {
    display: grid;
    grid-template-columns: minmax(220px, 300px) 1fr;
    gap: 30px;
    align-items: center;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--content);
    border: 1px solid var(--line);
}

.slant-page__media {
    height: 210px;
    clip-path: polygon(0 0,100% 0,86% 100%,0 100%);
}

.slant-page__rows {
    display: grid;
    gap: 0;
    border-top: 1px solid var(--line);
}

.slant-page__row {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 24px;
    padding: 22px 0;
    border-bottom: 1px solid var(--line);
}

.slant-page__row h2 {
    margin-bottom: 0;
}

.volume-page {
    width: min(960px, calc(100% - 32px));
    margin: 0 auto;
    padding-bottom: 34px;
}

.volume-stack {
    display: grid;
    gap: 16px;
}

.volume-sheet {
    position: relative;
    padding: 24px 30px;
    background: var(--content);
    border: 1px solid var(--line);
    border-left: 7px solid var(--copper);
}

.volume-sheet::before {
    content: "";
    position: absolute;
    top: 12px;
    bottom: 12px;
    left: 10px;
    width: 1px;
    background: var(--line);
}

.volume-sheet--media {
    display: grid;
    grid-template-columns: minmax(180px, 280px) 1fr;
    gap: 24px;
    align-items: center;
}

.volume-sheet--media .media-slot {
    height: 188px;
}

.single-column {
    width: min(760px, calc(100% - 32px));
    margin: 0 auto;
    padding-bottom: 36px;
}

.single-column .media-slot {
    height: 220px;
    margin-bottom: 28px;
}

.single-column section {
    padding: 22px 0;
    border-top: 1px solid var(--line);
}

.single-column section:first-of-type {
    border-top: 0;
}

.memo-list {
    display: grid;
    gap: 12px;
}

.memo-item {
    padding: 20px;
    background: var(--content);
    border: 1px solid var(--line);
    border-left: 4px solid var(--orange);
}

.method-steps {
    counter-reset: method-step;
    display: grid;
    gap: 14px;
}

.method-step {
    position: relative;
    padding: 20px 20px 20px 58px;
    background: var(--content);
    border: 1px solid var(--line);
}

.method-step::before {
    counter-increment: method-step;
    content: counter(method-step);
    position: absolute;
    left: 16px;
    top: 18px;
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    background: var(--orange);
    color: var(--content);
    font-weight: 800;
}

.topic-list {
    display: grid;
    gap: 12px;
}

.topic-item {
    display: grid;
    grid-template-columns: 170px 1fr;
    gap: 20px;
    padding: 20px;
    background: var(--content);
    border: 1px solid var(--line);
}

.topic-item strong {
    color: var(--copper);
}

.center-card-page {
    width: min(760px, calc(100% - 32px));
    margin: 0 auto;
    padding-bottom: 36px;
}

.center-card-page .media-slot {
    height: 210px;
    margin: 0 auto 22px;
}

.center-info-card {
    margin-bottom: 16px;
    padding: 24px;
    background: var(--content);
    border: 1px solid var(--line);
    text-align: center;
}

.center-info-card p {
    max-width: 620px;
    margin-left: auto;
    margin-right: auto;
}

.app-page {
    width: min(960px, calc(100% - 32px));
    margin: 0 auto;
    padding-bottom: 36px;
}

.app-page__lead {
    display: grid;
    grid-template-columns: minmax(190px, 280px) 1fr;
    gap: 30px;
    align-items: center;
    padding: 24px;
    background: var(--content);
    border: 1px solid var(--line);
}

.app-page__media {
    height: 320px;
}

.app-page__features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 20px;
}

.app-page__feature {
    padding: 20px;
    background: var(--secondary);
    border: 1px solid var(--line);
}

.terms-page {
    width: min(820px, calc(100% - 32px));
    margin: 0 auto;
    padding-bottom: 36px;
}

.terms-page section {
    padding: 22px 0;
    border-top: 1px solid var(--line);
}

.terms-page section:first-child {
    border-top: 0;
}

.help-grid {
    width: min(960px, calc(100% - 32px));
    margin: 0 auto 36px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.help-card {
    padding: 22px;
    background: var(--content);
    border: 1px solid var(--line);
}

.help-card a {
    color: var(--copper);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.faq-page {
    width: min(860px, calc(100% - 32px));
    margin: 0 auto;
    padding-bottom: 36px;
}

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

.faq-item:first-child {
    border-top: 0;
}

.faq-item h2 {
    font-size: 18px;
}

.contact-grid {
    width: min(900px, calc(100% - 32px));
    margin: 0 auto 36px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.contact-card {
    padding: 22px;
    background: var(--content);
    border: 1px solid var(--line);
    border-bottom: 3px solid var(--orange);
}

.banner-slot {
    width: min(960px, calc(100% - 32px));
    height: 200px;
    margin: 0 auto 28px;
}

.about-grid {
    width: min(960px, calc(100% - 32px));
    margin: 0 auto 36px;
    display: grid;
    grid-template-columns: .88fr 1.12fr;
    gap: 24px;
}

.about-grid__brand {
    padding: 24px;
    background: var(--ink);
    color: var(--page);
}

.about-grid__brand h2,
.about-grid__brand h3 {
    color: var(--content);
}

.about-grid__brand .media-slot {
    height: 210px;
    margin-bottom: 18px;
    background: var(--secondary);
}

.about-grid__content section {
    padding: 20px 0;
    border-top: 1px solid var(--line);
}

.about-grid__content section:first-child {
    border-top: 0;
    padding-top: 0;
}

.site-footer {
    background: var(--ink);
    color: var(--page);
    border-top: 1px solid var(--orange);
}

.site-footer__inner {
    padding: 34px 0 calc(34px + env(safe-area-inset-bottom));
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
}

.footer-brand a {
    min-width: 44px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}

.footer-brand strong,
.footer-brand span {
    display: block;
}

.footer-brand strong {
    color: var(--content);
    font-size: 16px;
}

.footer-brand span {
    color: var(--page);
    font-size: 13px;
}

.footer-logo-fallback {
    color: var(--content);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.footer-links h2 {
    margin-bottom: 10px;
    color: var(--content);
    font-size: 13px;
}

.footer-links a {
    display: block;
    min-height: 30px;
    color: var(--page);
    font-size: 13px;
}

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

.footer-note,
.footer-copy {
    color: var(--page);
    font-size: 13px;
}

.footer-note {
    max-width: 760px;
    padding-top: 18px;
    border-top: 1px solid rgba(255,248,242,.16);
}

.footer-copy {
    margin-bottom: 0;
    color: #C8D0D4;
}

.page-overlay {
    position: fixed;
    inset: 0;
    z-index: 180;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    background: rgba(22,56,46,.38);
    transition: opacity .18s ease, visibility .18s ease;
}

.page-overlay.is-visible {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
}

.menu-panel {
    position: fixed;
    z-index: 210;
    top: 88px;
    left: 50%;
    width: 320px;
    max-height: 360px;
    overflow-y: auto;
    transform: translate(-50%, -18px);
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    background: var(--content);
    color: var(--text);
    border: 1px solid var(--orange);
    box-shadow: var(--shadow);
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}

.menu-panel.is-open {
    transform: translate(-50%, 0);
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
}

.panel-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    padding: 14px;
    border-bottom: 1px solid var(--line);
}

.panel-head p {
    margin: 2px 0 0;
    color: var(--muted);
    font-size: 13px;
}

.panel-brand {
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel-close {
    min-width: 44px;
    min-height: 44px;
    padding: 0 10px;
    border: 1px solid var(--line);
    background: var(--content);
    color: var(--ink);
    cursor: pointer;
}

.menu-groups {
    padding: 4px 14px 14px;
}

.menu-groups section {
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
}

.menu-groups section:last-child {
    border-bottom: 0;
}

.menu-groups h2 {
    margin-bottom: 6px;
    color: var(--copper);
    font-size: 13px;
}

.menu-groups a {
    display: grid;
    grid-template-columns: 62px 1fr;
    gap: 8px;
    min-height: 44px;
    align-items: center;
    padding: 4px 0;
}

.menu-groups b {
    color: var(--ink);
    font-size: 14px;
}

.menu-groups span {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.45;
}

.search-panel {
    position: fixed;
    z-index: 205;
    top: 74px;
    left: 50%;
    width: min(560px, calc(100% - 32px));
    transform: translate(-50%, -12px);
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    background: var(--content);
    color: var(--text);
    border: 1px solid var(--orange);
    box-shadow: var(--shadow);
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}

.search-panel.is-open {
    transform: translate(-50%, 0);
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
}

.search-panel__inner {
    padding-bottom: 16px;
}

.search-label {
    display: block;
    margin: 14px 14px 6px;
    color: var(--muted);
    font-size: 13px;
}

.search-input {
    width: calc(100% - 28px);
    min-height: 44px;
    margin: 0 14px;
    padding: 0 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--content);
    color: var(--ink);
}

.search-results {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 14px;
}

.search-results a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    padding: 0 14px;
    border: 1px solid var(--orange);
    border-radius: 8px;
    color: var(--ink);
}

.search-empty {
    margin: 0 14px;
    color: var(--muted);
}

.mobile-bottom-nav {
    display: none;
}

@media (max-width: 760px) {
    .quick-nav {
        display: none;
    }

    .site-main {
        padding-top: 74px;
        padding-bottom: calc(72px + env(safe-area-inset-bottom));
    }

    .page-intro {
        padding-top: 34px;
    }

    .site-header__actions {
        gap: 6px;
    }

    .app-link,
    .menu-button {
        padding: 0 10px;
        font-size: 13px;
    }

    .menu-button {
        max-width: 104px;
    }

    .slant-record,
    .slant-page__hero,
    .app-feature,
    .app-page__lead,
    .volume-sheet--media,
    .about-grid {
        grid-template-columns: 1fr;
    }

    .slant-record__media,
    .slant-page__media {
        width: 100%;
        max-width: 300px;
    }

    .dual-cards,
    .book-spreads,
    .rack-cards,
    .guide-points,
    .help-grid,
    .contact-grid,
    .app-page__features {
        grid-template-columns: 1fr;
    }

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

    .status-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .status-row strong {
        justify-self: start;
    }

    .inner-split,
    .inner-split--reverse {
        grid-template-columns: 1fr;
    }

    .inner-split__aside .media-slot {
        position: static;
        height: 210px;
    }

    .slant-page__row,
    .topic-item {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .about-grid__brand {
        order: 2;
    }

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

    .menu-panel {
        top: 80px;
        width: 88%;
        max-height: min(360px, calc(100vh - 108px));
    }

    .search-panel {
        inset: 0;
        width: 100%;
        height: 100%;
        transform: none;
        background: var(--ink);
        color: var(--page);
        border: 0;
        overflow-y: auto;
    }

    .search-panel.is-open {
        transform: none;
    }

    .search-panel .panel-head {
        border-bottom-color: rgba(244,250,248,.18);
    }

    .search-panel .panel-head strong,
    .search-panel .panel-head p,
    .search-panel .search-label,
    .search-panel .search-empty {
        color: var(--page);
    }

    .search-panel .panel-close {
        background: transparent;
        color: var(--page);
        border-color: rgba(244,250,248,.3);
    }

    .search-panel .search-input {
        background: var(--content);
        color: var(--ink);
    }

    .search-panel .search-results a {
        color: var(--page);
        border-color: var(--orange);
    }

    .mobile-bottom-nav {
        position: fixed;
        z-index: 150;
        inset: auto 0 0 0;
        height: calc(48px + env(safe-area-inset-bottom));
        padding-bottom: env(safe-area-inset-bottom);
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        background: var(--content);
        border-top: 1px solid var(--line);
        box-shadow: 0 -6px 20px rgba(22,56,46,.08);
    }

    .mobile-bottom-nav a {
        min-height: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--ink);
        font-size: 13px;
    }

    .mobile-bottom-nav a.is-current {
        background: var(--orange);
        color: var(--ink);
        font-weight: 800;
    }

    .site-footer__inner {
        padding-bottom: calc(82px + env(safe-area-inset-bottom));
    }
}

@media (max-width: 430px) {
    .top-strip__inner,
    .site-header__inner,
    .quick-nav__inner,
    .site-footer__inner,
    .content-width,
    .page-intro,
    .section,
    .slant-page,
    .volume-page,
    .single-column,
    .center-card-page,
    .app-page,
    .terms-page,
    .help-grid,
    .faq-page,
    .contact-grid,
    .banner-slot,
    .about-grid,
    .inner-split,
    .inner-split--reverse {
        width: calc(100% - 32px);
    }

    .footer-links {
        gap: 14px;
    }

    .site-header__inner {
        gap: 8px;
    }

    .site-header__actions {
        flex: 0 1 auto;
    }

    .brand-link {
        flex: 0 0 auto;
    }

    .app-link,
    .menu-button {
        min-width: 0;
        padding: 0 8px;
    }
}


/* 每日大赛青绿导航与首页专属版式 */
.quick-nav { height:48px; }
.quick-nav__inner { height:48px; justify-content:center; gap:38px; }
.quick-nav__item { position:relative; gap:7px; color:var(--muted); }
.quick-nav__item--raised { transform:translateY(-4px); }
.quick-nav__square { width:10px; height:10px; flex:0 0 10px; border:2px solid var(--orange); border-radius:50%; background:var(--content); }
.quick-nav__item.is-current { color:var(--ink); font-weight:800; }
.quick-nav__item.is-current .quick-nav__square { width:14px; height:14px; flex-basis:14px; background:var(--orange); border-color:var(--orange); }
.quick-nav__item:hover .quick-nav__square { background:var(--orange); border-color:var(--orange); }
.site-main { padding-top:122px; }
.menu-panel { top:74px; left:0; width:min(36vw,420px); max-height:calc(100vh - 96px); transform:translateX(-104%); border-left:0; border-radius:0 12px 12px 0; }
.menu-panel.is-open { transform:translateX(0); }
.home-dot-index { display:flex; flex-wrap:wrap; gap:12px; margin:0 0 18px; }
.home-dot-index a { display:inline-flex; align-items:center; gap:7px; min-height:40px; padding:0 11px; background:var(--secondary); border:1px solid var(--line); border-radius:8px; font-size:13px; color:var(--ink); }
.home-dot-index a::before { content:""; width:9px; height:9px; border-radius:50%; background:var(--orange); }
.home-main-sentence { margin:0 0 10px; color:var(--ink); font-size:18px; font-weight:800; }
.home-split { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.home-split__panel { padding:20px; background:var(--secondary); border:1px solid var(--line); border-radius:8px; }
.home-split__panel .media-slot { height:164px; margin-top:12px; background:var(--content); }
.home-vertical { display:grid; gap:12px; }
.home-vertical__item { display:grid; grid-template-columns:150px 1fr; gap:18px; padding:18px; background:var(--content); border:1px solid var(--line); border-left:4px solid var(--orange); border-radius:8px; }
.home-vertical__item.no-media { grid-template-columns:1fr; }
.home-vertical__item .media-slot { height:112px; }
.home-folder { display:grid; grid-template-columns:1.08fr .92fr; gap:18px; align-items:start; }
.home-folder__card { padding:22px; background:var(--content); border:1px solid var(--line); border-radius:8px; box-shadow:var(--shadow); }
.home-folder__card:first-child { transform:translateY(8px); }
.home-folder__card .media-slot { height:180px; margin:12px 0; }
.home-rack { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.home-rack__card { padding:20px; text-align:center; background:var(--content); border:1px solid var(--line); border-radius:8px; }
.home-rack__card .media-slot { height:160px; margin-bottom:12px; }
.home-app { display:grid; grid-template-columns:1.15fr .85fr; gap:22px; align-items:center; }
.home-app__visual { display:grid; grid-template-columns:1fr 64px; gap:10px; align-items:start; }
.home-app__shot { height:320px !important; }
.home-app__icon { height:64px !important; min-height:64px !important; }
.compact-media { height:150px; margin-bottom:14px; }
@media (max-width:760px){
  .quick-nav{display:none}
  .site-main{padding-top:76px}
  .menu-panel{top:74px;width:88%;max-height:calc(100vh - 90px)}
  .search-panel{background:var(--orange);color:var(--content)}
  .home-split,.home-folder,.home-rack,.home-app{grid-template-columns:1fr}
  .home-vertical__item{grid-template-columns:1fr}
  .home-vertical__item .media-slot{height:160px}
  .home-folder__card:first-child{transform:none}
}

/* 内页版式微调 */
body[data-current="saimian"] .slant-page__hero{grid-template-columns:1fr 1fr;border-radius:8px;background:var(--secondary)}
body[data-current="saimian"] .slant-page__media{order:2;height:164px;clip-path:none;background:var(--content)}
body[data-current="saibu"] .volume-sheet{border-radius:8px;border-left:1px solid var(--line);box-shadow:var(--shadow)}
body[data-current="saibu"] .volume-sheet:nth-child(even){margin-left:34px}
body[data-current="saiji"] .inner-split{display:block}
body[data-current="saiji"] .article-flow{display:grid;gap:14px}
body[data-current="saiji"] .article-flow section{padding:20px;border:1px solid var(--line);border-left:4px solid var(--orange);border-radius:8px;background:var(--content)}
body[data-current="saiji"] .inner-split__aside{margin-top:14px}
body[data-current="saiji"] .inner-split__aside .media-slot{position:static;height:210px}
body[data-current="app"] .app-page__media{order:2}
@media(max-width:760px){body[data-current="saibu"] .volume-sheet:nth-child(even){margin-left:0}}

/* 每日大赛青灰版布局覆盖 */
.quick-nav{height:44px}
.quick-nav__inner{height:44px;justify-content:center;gap:34px}
.quick-nav__item{width:88px;min-height:42px;display:grid;grid-template-rows:8px auto;gap:2px;justify-items:center;align-items:start}
.quick-nav__line{display:block;width:88px;height:4px;background:var(--orange)}
.quick-nav__item.is-current .quick-nav__line{height:6px;background:var(--copper)}
.site-main{padding-top:118px}
.menu-panel{top:auto!important;left:auto!important;right:18px!important;bottom:18px!important;width:260px!important;max-height:360px!important;transform:translateY(112%)!important;border:1px solid var(--line)!important;border-radius:8px!important}
.menu-panel.is-open{transform:translateY(0)!important}
.menu-groups{max-height:300px;overflow:auto}
.home-strip-index{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 18px}
.home-strip-index a{width:92px;min-height:42px;padding:7px 8px;background:var(--content);border:1px solid var(--line);border-radius:6px;font-size:13px;color:var(--ink)}
.home-strip-index a::before{content:"";display:block;width:100%;height:4px;background:var(--orange);margin-bottom:4px}
.home-stagger{display:grid;grid-template-columns:1.05fr .95fr;gap:18px;align-items:start}
.home-stagger__card{padding:18px;background:var(--content);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow)}
.home-stagger__card:first-child{min-height:320px}
.home-stagger__card:last-child{margin-top:38px}
.home-stagger__card .media-slot{height:180px;margin-bottom:14px}
.home-horizontal{display:grid;gap:12px}
.home-horizontal__item{display:grid;grid-template-columns:180px 1fr;gap:18px;align-items:center;padding:16px;background:var(--content);border:1px solid var(--line);border-left:5px solid var(--orange);border-radius:6px}
.home-horizontal__item.no-media{grid-template-columns:1fr}
.home-horizontal__item .media-slot{height:120px}
.home-fold{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.home-fold__card{padding:20px;background:var(--content);border:1px solid var(--line);border-radius:8px;position:relative}
.home-fold__card::after{content:"";position:absolute;top:0;bottom:0;left:50%;width:1px;background:rgba(184,136,96,.24)}
.home-fold__card>*{position:relative;z-index:1}
.home-fold__card .media-slot{height:170px;margin:10px 0}
.home-rack__card{border-radius:8px}
.home-app-top{display:grid;grid-template-columns:1fr 70px;gap:12px;align-items:start;margin-bottom:18px}
.home-app-top__shot{height:320px!important}
.home-app-top__icon{height:70px!important;min-height:70px!important}
.app-page__lead{display:block!important}
.app-page__media{height:320px!important;margin-bottom:18px}
.app-icon-row{margin-top:8px}
@media(max-width:760px){
  .menu-panel{right:6%!important;bottom:64px!important;width:88%!important;max-height:360px!important}
  .home-stagger,.home-fold{grid-template-columns:1fr}
  .home-stagger__card:last-child{margin-top:0}
  .home-horizontal__item{grid-template-columns:1fr}
  .home-horizontal__item .media-slot{height:160px}
  .home-app-top{grid-template-columns:1fr 64px}
  .quick-nav{display:none}
  .site-main{padding-top:74px}
}
.app-top-visual{display:grid;grid-template-columns:1fr 70px;gap:12px;align-items:start;margin-bottom:18px}
.app-top-visual .app-page__media{height:320px!important;margin:0!important}
.app-top-icon{height:70px!important;min-height:70px!important}
.app-top-icon .app-icon{width:48px;height:48px;object-fit:contain}
@media(max-width:760px){.app-top-visual{grid-template-columns:1fr 64px}.app-top-icon{height:64px!important;min-height:64px!important}}