:root {
    --paper: #FDF8E8;
    --paper-light: #FAF5E6;
    --paper-dark: #F5EDD6;
    --sepia: #7A3E1A;
    --sepia-dark: #5D3A1A;
    --sepia-muted: #9B5E30;
    --gold: #DAB030;
    --gold-dark: #A68525;
    --gold-light: #E8C860;
    --jade: #4A7C59;
    --vermilion: #9B2C1A;
    --vermilion-light: #C44B33;
    --border-gold: rgba(218, 176, 48, 0.35);
    --shadow-md: rgba(90, 48, 18, 0.14);
    --radius-xl: 2rem;
    --unroll-duration: 1.35s;
    --unroll-ease: cubic-bezier(0.22, 0.85, 0.32, 1);
    --about-header-h: 8.5rem;
    --about-footer-h: 5.75rem;
    --about-stage-h: auto;
    --about-chrome-pad: 1rem;
    --plaque-bg: linear-gradient(180deg, #FFFDF8 0%, #FAF3E0 45%, #F0E6D0 100%);
    --plaque-border: rgba(166, 133, 37, 0.55);
    --plaque-inset: rgba(218, 176, 48, 0.38);
}

html.gzd-about-html,
html.gzd-about-html body.gzd-about-page {
    height: 100%;
    margin: 0;
    overflow: hidden;
}

html.gzd-about-html.gzd-about--scrollable,
html.gzd-about-html.gzd-about--scrollable body.gzd-about-page {
    height: auto;
    min-height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
}

.gzd-about-page {
    font-family: "Ma Shan Zheng", "STKaiti", "KaiTi", "Noto Serif SC", "Source Han Serif SC", "Microsoft YaHei", sans-serif;
    color: var(--sepia);
    background: var(--paper);
}

.gzd-about-wrapper {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    max-height: 100dvh;
    background: var(--paper) url(/images/index_bg.gif) repeat;
}

html.gzd-about--scrollable .gzd-about-wrapper {
    height: auto;
    min-height: 100dvh;
    max-height: none;
}

.gzd-about-page .skip-link {
    position: absolute;
    top: -100px;
    left: 1rem;
    z-index: 10000;
    padding: 0.75rem 1.5rem;
    background: var(--sepia);
    color: #fff;
    border-radius: 0.5rem;
    font-family: "Microsoft YaHei", sans-serif;
    font-weight: 500;
}

.gzd-about-page .skip-link:focus {
    top: 1rem;
    outline: 3px solid var(--gold);
    outline-offset: 2px;
}

.gzd-about-header {
    flex-shrink: 0;
    position: relative;
    background:
        linear-gradient(180deg, #FBF8F3 0%, #F9F5ED 92%, rgba(249, 245, 237, 0.95) 100%);
    padding: 0.55rem 1.5rem 0.65rem;
    border-bottom: 2px solid rgba(166, 133, 37, 0.28);
    box-shadow:
        0 3px 12px rgba(90, 48, 18, 0.06),
        inset 0 -1px 0 rgba(218, 176, 48, 0.12);
}

.gzd-about-header::after {
    content: "";
    position: absolute;
    left: 1.5rem;
    right: 1.5rem;
    bottom: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(218, 176, 48, 0.45) 15%, rgba(218, 176, 48, 0.65) 50%, rgba(218, 176, 48, 0.45) 85%, transparent);
    pointer-events: none;
}

.gzd-about-header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.55rem;
    padding: 0.1rem 0;
    min-height: 3.25rem;
}

.gzd-about-back {
    position: relative;
    display: inline-flex;
    align-items: stretch;
    min-height: 3.25rem;
    padding: 0;
    text-decoration: none;
    color: var(--sepia-dark);
    background: var(--plaque-bg);
    border: 2px solid var(--plaque-border);
    border-radius: 3px;
    box-shadow:
        0 4px 16px rgba(90, 48, 18, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.92),
        inset 0 -2px 0 rgba(139, 90, 43, 0.06);
    overflow: hidden;
    transition: transform 0.22s cubic-bezier(0.34, 1.2, 0.64, 1), box-shadow 0.22s, border-color 0.22s;
}

.gzd-about-back::before {
    content: "";
    position: absolute;
    inset: 5px;
    border: 1px solid var(--plaque-inset);
    border-radius: 1px;
    pointer-events: none;
    z-index: 1;
}

.gzd-about-back::after {
    content: "";
    position: absolute;
    top: 3px;
    right: 3px;
    width: 0.7rem;
    height: 0.7rem;
    border-top: 2px solid rgba(218, 176, 48, 0.55);
    border-right: 2px solid rgba(218, 176, 48, 0.55);
    pointer-events: none;
    z-index: 1;
}

.gzd-about-back:hover {
    transform: translateY(-2px);
    border-color: rgba(218, 176, 48, 0.75);
    box-shadow:
        0 8px 24px rgba(90, 48, 18, 0.16),
        inset 0 1px 0 rgba(255, 255, 255, 1),
        0 0 0 1px rgba(218, 176, 48, 0.15);
}

.gzd-about-back:focus-visible {
    outline: 3px solid var(--gold);
    outline-offset: 3px;
}

.gzd-about-back__seal {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 3.25rem;
    min-width: 3.25rem;
    font-family: "Ma Shan Zheng", "STKaiti", "KaiTi", serif;
    font-size: 1.75rem;
    font-weight: 400;
    line-height: 1;
    color: #FFF6E8;
    background: linear-gradient(180deg, var(--vermilion-light) 0%, var(--vermilion) 55%, #7A2418 100%);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.22);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.gzd-about-back__body {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.28rem;
    min-width: 6.75rem;
    padding: 0.5rem 1.1rem 0.48rem 0.85rem;
    text-align: center;
}

.gzd-about-back__main {
    display: block;
    width: 100%;
    font-family: "STKaiti", "KaiTi", "Noto Serif SC", serif;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-indent: 0.22em;
    line-height: 1.25;
    color: var(--sepia-dark);
    white-space: nowrap;
}

.gzd-about-back__sub {
    display: inline-block;
    margin: 0 auto;
    padding: 0.2rem 0.75rem 0.18rem;
    font-family: "Ma Shan Zheng", "STKaiti", "KaiTi", serif;
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.28em;
    text-indent: 0.28em;
    line-height: 1.2;
    color: #8B5A32;
    white-space: nowrap;
    background: linear-gradient(
        180deg,
        rgba(255, 252, 245, 0.98) 0%,
        rgba(250, 240, 216, 0.95) 55%,
        rgba(237, 224, 196, 0.92) 100%
    );
    border: 1px solid rgba(201, 162, 39, 0.5);
    border-radius: 2px;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.9),
        0 1px 2px rgba(90, 48, 18, 0.08);
}

.gzd-about-volume {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3rem;
    padding: 0.55rem 1.5rem 0.5rem 1.35rem;
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    color: var(--sepia-dark);
    font-family: "STKaiti", "KaiTi", "Ma Shan Zheng", serif;
    background: var(--plaque-bg);
    border: 2px solid var(--plaque-border);
    border-radius: 3px;
    box-shadow:
        0 3px 12px rgba(90, 48, 18, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
    white-space: nowrap;
}

.gzd-about-volume::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.35rem;
    bottom: 0.35rem;
    width: 4px;
    border-radius: 0 2px 2px 0;
    background: linear-gradient(180deg, var(--gold-light), var(--gold-dark));
    box-shadow: 1px 0 0 rgba(255, 255, 255, 0.4);
}

.gzd-about-volume::after {
    content: "";
    position: absolute;
    inset: 5px;
    border: 1px solid var(--plaque-inset);
    border-radius: 1px;
    pointer-events: none;
}

.gzd-about-header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.45rem;
}

.gzd-about-logo {
    height: 2.75rem;
    width: auto;
    max-width: 100%;
    filter: drop-shadow(0 2px 6px rgba(122, 62, 26, 0.12));
}

.gzd-about-slogan {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.45rem 1.75rem;
    background:
        linear-gradient(90deg, transparent, rgba(201, 162, 39, 0.06) 12%, rgba(201, 162, 39, 0.12) 50%, rgba(201, 162, 39, 0.06) 88%, transparent);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(201, 162, 39, 0.22);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.65);
}

.gzd-about-slogan-orn {
    flex-shrink: 0;
    width: 0.5rem;
    height: 0.5rem;
    background: linear-gradient(135deg, var(--gold-light), var(--gold-dark));
    transform: rotate(45deg);
    box-shadow: 0 0 0 1px rgba(166, 133, 37, 0.25);
    opacity: 0.85;
}

.gzd-about-slogan-orn--mirror {
    transform: rotate(45deg);
}

.gzd-about-slogan-text {
    font-family: "STKaiti", "KaiTi", "Noto Serif SC", serif;
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--sepia-dark);
    letter-spacing: 0.38em;
}

.gzd-about-slogan-divider {
    width: 2px;
    height: 1.25rem;
    background: linear-gradient(180deg, transparent, var(--gold) 20%, var(--gold-dark) 50%, var(--gold) 80%, transparent);
    border-radius: 1px;
}

.gzd-about-page-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.85rem;
    margin: 0;
    width: 100%;
    max-width: 22rem;
}

.gzd-about-page-title__line {
    flex: 1 1 auto;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(166, 133, 37, 0.35));
}

.gzd-about-page-title__line:last-child {
    background: linear-gradient(90deg, rgba(166, 133, 37, 0.35), transparent);
}

.gzd-about-page-title__text {
    flex-shrink: 0;
    padding: 0.35rem 1.1rem;
    font-family: "Ma Shan Zheng", "STKaiti", "KaiTi", serif;
    font-size: 1.125rem;
    font-weight: 400;
    letter-spacing: 0.55em;
    text-indent: 0.55em;
    color: var(--gold-dark);
    background: linear-gradient(180deg, rgba(255, 252, 245, 0.95), rgba(253, 243, 200, 0.5));
    border: 1px solid rgba(218, 176, 48, 0.35);
    border-radius: 2px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.gzd-scroll-stage {
    flex: 1 1 auto;
    min-height: 0;
    max-height: var(--about-stage-h, none);
    display: flex;
    align-items: stretch;
    justify-content: center;
    max-width: min(98vw, 68rem);
    width: 100%;
    margin: 0 auto;
    padding: 0.5rem 0.65rem;
    box-sizing: border-box;
}

.gzd-scroll-roller {
    position: relative;
    flex-shrink: 0;
    width: clamp(1rem, 2.5vw, 1.625rem);
    align-self: stretch;
    background:
        repeating-linear-gradient(
            0deg,
            rgba(0, 0, 0, 0.04) 0,
            rgba(0, 0, 0, 0.04) 2px,
            transparent 2px,
            transparent 6px
        ),
        linear-gradient(90deg, #3D2817, #5D3A1A 15%, #8B5A32 40%, #A0724A 50%, #8B5A32 60%, #6B4423 85%, #4A3020);
    box-shadow:
        inset 0 3px 6px rgba(255, 255, 255, 0.14),
        inset 0 -3px 8px rgba(0, 0, 0, 0.25),
        2px 0 8px rgba(90, 48, 18, 0.12);
    border-radius: 6px;
    z-index: 2;
}

.gzd-scroll-roller::before,
.gzd-scroll-roller::after {
    content: "";
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 130%;
    height: clamp(0.75rem, 2vw, 1.125rem);
    border-radius: 50%;
    background: radial-gradient(ellipse at center, #A0724A 0%, #6B4423 55%, #4A3020 100%);
    box-shadow:
        inset 0 2px 4px rgba(255, 255, 255, 0.2),
        inset 0 -2px 4px rgba(0, 0, 0, 0.3);
    z-index: 3;
}

.gzd-scroll-roller::before {
    top: -0.15rem;
}

.gzd-scroll-roller::after {
    bottom: -0.15rem;
}

.gzd-scroll-roller--left {
    border-radius: 10px 4px 4px 10px;
    margin-right: 3px;
}

.gzd-scroll-roller--right {
    border-radius: 4px 10px 10px 4px;
    margin-left: 3px;
}

.gzd-scroll-viewport {
    flex: 1 1 auto;
    min-width: 0;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.gzd-scroll-paper {
    flex: 1 1 auto;
    min-height: 0;
    position: relative;
    display: flex;
    flex-direction: column;
    background:
        linear-gradient(180deg, #FFFCF5, var(--paper) 5%, var(--paper-dark) 95%, #E8DCC0);
    border: 2px solid rgba(166, 133, 37, 0.45);
    box-shadow:
        0 8px 28px rgba(90, 48, 18, 0.12),
        inset 0 0 0 1px rgba(255, 255, 255, 0.75),
        inset 0 0 0 6px rgba(218, 176, 48, 0.08);
    overflow: hidden;
}

.gzd-scroll-paper::before,
.gzd-scroll-paper::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    height: 10px;
    pointer-events: none;
    z-index: 4;
}

.gzd-scroll-paper::before {
    top: 0;
    background: linear-gradient(180deg, rgba(139, 90, 43, 0.1), transparent);
}

.gzd-scroll-paper::after {
    bottom: 0;
    background: linear-gradient(0deg, rgba(139, 90, 43, 0.1), transparent);
}

.gzd-scroll-paper.is-frame-opening {
    clip-path: inset(0 100% 0 0 round 1px);
    animation: gzd-scroll-frame-unroll var(--unroll-duration) var(--unroll-ease) forwards;
}

.gzd-scroll-pages {
    position: relative;
    flex: 1 1 auto;
    min-height: 0;
    height: 100%;
    width: 100%;
}

.gzd-scroll-page {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: stretch;
    justify-content: center;
    padding: 0.5rem 0.65rem;
    overflow: hidden;
    visibility: hidden;
    clip-path: inset(0 100% 0 0);
    z-index: 0;
    box-sizing: border-box;
}

.gzd-scroll-page:not(.is-active):not(.is-unrolling):not(.is-rolling-up):not(.is-unrolling-reverse):not(.is-rolling-up-reverse) {
    visibility: hidden;
    clip-path: inset(0 100% 0 0);
}

.gzd-scroll-page.is-active {
    visibility: visible;
    z-index: 1;
    clip-path: inset(0 0 0 0);
}

.gzd-scroll-page.is-unrolling {
    visibility: visible;
    z-index: 2;
    animation: gzd-page-unroll var(--unroll-duration) var(--unroll-ease) forwards;
}

.gzd-scroll-page.is-rolling-up {
    visibility: visible;
    z-index: 2;
    animation: gzd-page-roll-up var(--unroll-duration) var(--unroll-ease) forwards;
}

.gzd-scroll-page.is-unrolling-reverse {
    animation-name: gzd-page-unroll-reverse;
}

.gzd-scroll-page.is-rolling-up-reverse {
    animation-name: gzd-page-roll-up-reverse;
}

@keyframes gzd-scroll-frame-unroll {
    from { clip-path: inset(0 100% 0 0 round 1px); }
    to { clip-path: inset(0 0 0 0 round 1px); }
}

@keyframes gzd-page-unroll {
    from { clip-path: inset(0 100% 0 0); opacity: 0.9; }
    to { clip-path: inset(0 0 0 0); opacity: 1; }
}

@keyframes gzd-page-roll-up {
    from { clip-path: inset(0 0 0 0); opacity: 1; }
    to { clip-path: inset(0 100% 0 0); opacity: 0.85; }
}

@keyframes gzd-page-unroll-reverse {
    from { clip-path: inset(0 0 0 100%); opacity: 0.9; }
    to { clip-path: inset(0 0 0 0); opacity: 1; }
}

@keyframes gzd-page-roll-up-reverse {
    from { clip-path: inset(0 0 0 0); opacity: 1; }
    to { clip-path: inset(0 0 0 100%); opacity: 0.85; }
}

.gzd-scroll-content {
    flex: 1 1 auto;
    width: 100%;
    min-height: 0;
    max-height: 100%;
    box-sizing: border-box;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: rgba(166, 133, 37, 0.45) transparent;
}

.gzd-scroll-content--one {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem;
}

.gzd-scroll-content--one img {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    object-position: center;
    border: 2px solid rgba(139, 90, 43, 0.22);
    box-shadow:
        0 3px 14px rgba(90, 48, 18, 0.1),
        inset 0 0 0 1px rgba(255, 255, 255, 0.5);
    background: #fff;
}

.gzd-scroll-content--two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: minmax(0, 1fr);
    gap: 0.55rem;
    padding: 0.35rem;
    align-items: center;
    justify-items: center;
}

.gzd-scroll-content--two img {
    display: block;
    max-width: 100%;
    max-height: min(100%, 42vh);
    width: auto;
    height: auto;
    object-fit: contain;
    object-position: center;
    border: 2px solid rgba(139, 90, 43, 0.2);
    box-shadow:
        0 2px 10px rgba(90, 48, 18, 0.08),
        inset 0 0 0 1px rgba(255, 255, 255, 0.45);
    background: #fff;
}

.gzd-about-footer {
    flex-shrink: 0;
    position: relative;
    padding: 0.65rem 1.25rem 0.85rem;
    background:
        linear-gradient(0deg, rgba(245, 237, 214, 0.98) 0%, rgba(253, 248, 232, 0.94) 100%);
    border-top: 2px solid rgba(166, 133, 37, 0.28);
    box-shadow:
        0 -3px 12px rgba(90, 48, 18, 0.05),
        inset 0 1px 0 rgba(218, 176, 48, 0.12);
}

.gzd-about-footer::before {
    content: "";
    position: absolute;
    left: 1.5rem;
    right: 1.5rem;
    top: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(218, 176, 48, 0.45) 15%, rgba(218, 176, 48, 0.65) 50%, rgba(218, 176, 48, 0.45) 85%, transparent);
    pointer-events: none;
}

.gzd-about-footer-orn {
    display: flex;
    justify-content: center;
    margin-bottom: 0.55rem;
}

.gzd-about-footer-orn__gem {
    display: block;
    width: 0.55rem;
    height: 0.55rem;
    background: linear-gradient(135deg, var(--gold-light), var(--gold-dark));
    transform: rotate(45deg);
    box-shadow: 0 0 0 1px rgba(166, 133, 37, 0.3);
    opacity: 0.9;
}

.gzd-about-nav {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 1rem 1.5rem;
    flex-wrap: wrap;
    max-width: 52rem;
    margin: 0 auto;
}

.gzd-about-nav-btn {
    position: relative;
    display: inline-flex;
    align-items: stretch;
    min-height: 3.5rem;
    padding: 0;
    font-family: inherit;
    color: var(--sepia-dark);
    background: var(--plaque-bg);
    border: 2px solid var(--plaque-border);
    border-radius: 3px;
    cursor: pointer;
    box-shadow:
        0 4px 16px rgba(90, 48, 18, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.92),
        inset 0 -2px 0 rgba(139, 90, 43, 0.06);
    overflow: hidden;
    transition: transform 0.22s cubic-bezier(0.34, 1.2, 0.64, 1), box-shadow 0.22s, border-color 0.22s, opacity 0.2s;
}

.gzd-about-nav-btn::before {
    content: "";
    position: absolute;
    inset: 5px;
    border: 1px solid var(--plaque-inset);
    border-radius: 1px;
    pointer-events: none;
    z-index: 1;
}

.gzd-about-nav-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    border-color: rgba(218, 176, 48, 0.75);
    box-shadow:
        0 8px 22px rgba(90, 48, 18, 0.14),
        inset 0 1px 0 rgba(255, 255, 255, 1),
        0 0 0 1px rgba(218, 176, 48, 0.12);
}

.gzd-about-nav-btn:focus-visible {
    outline: 3px solid var(--gold);
    outline-offset: 3px;
}

.gzd-about-nav-btn:disabled {
    opacity: 0.38;
    cursor: not-allowed;
    transform: none;
}

.gzd-about-nav-btn__seal {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 3.25rem;
    min-width: 3.25rem;
    font-family: "Ma Shan Zheng", "STKaiti", "KaiTi", serif;
    font-size: 1.625rem;
    line-height: 1;
    color: #FFF6E8;
    background: linear-gradient(180deg, var(--vermilion-light) 0%, var(--vermilion) 55%, #7A2418 100%);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.gzd-about-nav-btn--next .gzd-about-nav-btn__seal {
    background: linear-gradient(180deg, #5A8F6A 0%, var(--jade) 55%, #3A6348 100%);
}

.gzd-about-nav-btn__body {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 0.1rem;
    padding: 0.5rem 1.15rem 0.45rem;
}

.gzd-about-nav-btn--prev .gzd-about-nav-btn__body {
    padding-left: 0.85rem;
}

.gzd-about-nav-btn--next .gzd-about-nav-btn__body {
    align-items: flex-end;
    padding-right: 0.85rem;
}

.gzd-about-nav-btn__main {
    font-family: "STKaiti", "KaiTi", "Noto Serif SC", serif;
    font-size: 1.1875rem;
    font-weight: 700;
    letter-spacing: 0.28em;
    line-height: 1.2;
    white-space: nowrap;
}

.gzd-about-nav-btn__sub {
    font-family: "Ma Shan Zheng", "STKaiti", serif;
    font-size: 0.75rem;
    letter-spacing: 0.28em;
    color: var(--gold-dark);
    line-height: 1;
    white-space: nowrap;
}

.gzd-about-nav-center {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 11rem;
}

.gzd-about-nav-indicator {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3.25rem;
    padding: 0.55rem 1.75rem;
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--sepia-dark);
    font-family: "STKaiti", "KaiTi", "Ma Shan Zheng", serif;
    text-align: center;
    background: var(--plaque-bg);
    border: 2px solid var(--plaque-border);
    border-radius: 3px;
    box-shadow:
        0 3px 12px rgba(90, 48, 18, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
    white-space: nowrap;
}

.gzd-about-nav-indicator::before,
.gzd-about-nav-indicator::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 0.45rem;
    height: 0.45rem;
    border: 1px solid rgba(166, 133, 37, 0.45);
    background: rgba(253, 243, 200, 0.6);
    transform: translateY(-50%) rotate(45deg);
}

.gzd-about-nav-indicator::before {
    left: 0.65rem;
}

.gzd-about-nav-indicator::after {
    right: 0.65rem;
}

.gzd-scroll-stage.is-busy .gzd-about-nav-btn {
    pointer-events: none;
}

@media (max-width: 900px) {
    .gzd-scroll-content--two {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto;
    }

    .gzd-scroll-content--two img {
        max-height: min(48vh, 22rem);
    }
}

@media (min-width: 768px) and (max-height: 860px) {
    html.gzd-about-html,
    html.gzd-about-html body.gzd-about-page {
        overflow-y: auto;
        overflow-x: hidden;
    }

    .gzd-about-wrapper {
        min-height: 100dvh;
        height: auto;
        max-height: none;
    }

    .gzd-about-header {
        padding: 0.4rem 1rem 0.45rem;
    }

    .gzd-about-header-top {
        margin-bottom: 0.35rem;
        min-height: 2.85rem;
    }

    .gzd-about-header-top .gzd-about-volume {
        display: none;
    }

    .gzd-about-slogan {
        display: none;
    }

    .gzd-about-page-title {
        display: none;
    }

    .gzd-about-logo {
        height: 2.25rem;
    }

    .gzd-about-header-content {
        gap: 0.2rem;
    }

    .gzd-about-footer {
        padding: 0.45rem 1rem 0.55rem;
    }

    .gzd-about-footer-orn {
        display: none;
        margin-bottom: 0;
    }

    .gzd-about-nav-btn {
        min-height: 3rem;
    }

    .gzd-about-nav-btn__sub {
        display: none;
    }

    .gzd-about-nav-indicator {
        min-height: 2.75rem;
        padding: 0.4rem 1.25rem;
        font-size: 1rem;
    }

    .gzd-scroll-stage {
        min-height: min(52vh, 26rem);
        padding: 0.35rem 0.5rem;
    }

    .gzd-scroll-content--two {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto;
    }

    .gzd-scroll-content--two img {
        max-height: min(36vh, 18rem);
    }
}

@media (min-width: 768px) and (max-height: 700px) {
    .gzd-about-back__sub {
        display: none;
    }

    .gzd-about-back__body {
        min-width: 5.5rem;
        padding: 0.4rem 0.75rem 0.38rem 0.65rem;
    }

    .gzd-about-back__main {
        font-size: 1.0625rem;
    }

    .gzd-about-nav-btn__main {
        font-size: 1rem;
        letter-spacing: 0.14em;
    }

    .gzd-scroll-stage {
        min-height: min(46vh, 20rem);
    }

    .gzd-scroll-content--one img,
    .gzd-scroll-content--two img {
        max-height: min(40vh, 16rem);
    }
}

@media (max-width: 720px) {
    .gzd-about-nav {
        gap: 0.75rem 1rem;
    }

    .gzd-about-nav-center {
        order: -1;
        width: 100%;
        min-width: 0;
    }

    .gzd-about-nav-indicator {
        width: 100%;
        max-width: 18rem;
    }

    .gzd-about-nav-btn {
        flex: 1 1 calc(50% - 0.5rem);
        min-width: 9rem;
    }
}

@media (max-width: 640px) {
    .gzd-about-header-top {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.65rem;
    }

    .gzd-about-back {
        min-height: 3rem;
    }

    .gzd-about-back__seal {
        width: 3rem;
        min-width: 3rem;
        font-size: 1.5rem;
    }

    .gzd-about-back__main {
        font-size: 1.0625rem;
        letter-spacing: 0.2em;
    }

    .gzd-about-back__sub {
        font-size: 0.75rem;
        letter-spacing: 0.2em;
        text-indent: 0.2em;
        padding: 0.15rem 0.55rem 0.12rem;
    }

    .gzd-about-volume {
        font-size: 1rem;
        min-height: 2.75rem;
        padding: 0.45rem 1.1rem 0.45rem 1rem;
    }

    .gzd-about-slogan {
        padding: 0.35rem 1rem;
        gap: 0.55rem;
    }

    .gzd-about-slogan-text {
        letter-spacing: 0.22em;
        font-size: 0.9375rem;
    }

    .gzd-about-slogan-orn {
        width: 0.4rem;
        height: 0.4rem;
    }

    .gzd-about-page-title__text {
        font-size: 1rem;
        letter-spacing: 0.4em;
        text-indent: 0.4em;
    }

    .gzd-about-nav-btn {
        min-height: 3.125rem;
    }

    .gzd-about-nav-btn__seal {
        width: 2.875rem;
        min-width: 2.875rem;
        font-size: 1.375rem;
    }

    .gzd-about-nav-btn__main {
        font-size: 1.0625rem;
        letter-spacing: 0.18em;
    }

    .gzd-about-nav-btn__sub {
        font-size: 0.6875rem;
        letter-spacing: 0.18em;
    }

    .gzd-about-nav-indicator {
        font-size: 1rem;
        min-height: 2.875rem;
        padding: 0.45rem 1.35rem;
    }

    .gzd-scroll-roller {
        width: 0.75rem;
    }

    .gzd-scroll-roller::before,
    .gzd-scroll-roller::after {
        width: 150%;
    }
}

@media (prefers-reduced-motion: reduce) {
    :root {
        --unroll-duration: 0.01ms;
    }

    .gzd-scroll-paper.is-frame-opening,
    .gzd-scroll-page.is-unrolling,
    .gzd-scroll-page.is-rolling-up {
        animation: none !important;
        clip-path: inset(0 0 0 0) !important;
    }
}