/* ============================================================
   hero_landing_origins.css — PAGE 01 Documentary
   Born in the Earth · Planet Earth / National Geographic

   标题约定（全页统一）：
   · 区块 kicker 一律 .doc-kicker：字号/字距固定，不随断点缩放
   · 各区块只改「放在哪」，不改 kicker 字号
   禁止再写 :root
   ============================================================ */

.page-origins-doc {
    --doc-ink: #141210;
    --doc-text: #2e2a26;
    --doc-mute: #6a645c;
    --doc-line: rgba(20, 18, 16, 0.14);
    --doc-paper: #faf9f7;
    --doc-wash: #f3f0ea;
    --doc-serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
    --doc-sans: "Source Sans 3", "Segoe UI", sans-serif;
    /* 与 hero_landing_page.css 公共令牌对齐 */
    --doc-pad-y: var(--hlp-pad-y, clamp(48px, 7vw, 88px));
    --doc-pad-x: var(--hlp-pad-x, clamp(20px, 5vw, 48px));
    /* 固定 kicker：全页区块标题同一规格 */
    --doc-kicker-size: 0.6875rem;   /* 11px */
    --doc-kicker-track: 0.22em;
    background: var(--doc-paper);
    color: var(--doc-text);
    font-family: var(--doc-sans);
    font-size: 17px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

.page-origins-doc .doc {
    overflow-x: hidden;
}

.page-origins-doc img,
.page-origins-doc video {
    display: block;
    width: 100%;
    height: auto;
}

/* 满高裁切图：覆盖上方 height:auto（Hero 媒体已迁至 stories-hero-kb，勿再写 doc-hero__image） */
.page-origins-doc .doc-time__figure img,
.page-origins-doc .doc-stone__image,
.page-origins-doc .doc-mood__side img {
    height: 100%;
}

.page-origins-doc section {
    margin: 0;
}

/* 全页区块标题：固定字号 + 字距，位置由各 section 决定 */
.doc-kicker {
    margin: 0;
    font-family: var(--doc-sans);
    font-size: var(--doc-kicker-size);
    font-weight: 600;
    letter-spacing: var(--doc-kicker-track);
    text-transform: uppercase;
    color: var(--doc-mute);
    line-height: 1.4;
}


/* ------------------------------------------------------------
   Hero — 壳层（媒体 Ken Burns 见 common/stories_hero_ken_burns.css）
   文案 / 呼吸箭头仍本页；勿在此重复 media / veil / Ken Burns
   ------------------------------------------------------------ */
.doc-hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    overflow: hidden;
    color: #f7f4ef;
}

.doc-hero__copy {
    position: relative;
    z-index: 1;
    width: min(720px, calc(100% - 40px));
    margin: 0 auto;
    padding: 0 0 clamp(72px, 12vh, 100px);
    text-align: center;
}

.doc-hero__eyebrow {
    margin: 0 0 20px;
    font-size: var(--doc-kicker-size);
    font-weight: 600;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: rgba(230, 220, 205, 0.85);
}

.doc-hero__title {
    margin: 0 0 28px;
    font-family: var(--doc-serif);
    font-weight: 400;
    font-size: clamp(2.4rem, 6.5vw, 4.4rem);
    line-height: 1.08;
    letter-spacing: -0.02em;
    color: #fff;
}

.doc-hero__title-line {
    display: block;
}

.doc-hero__subtitle {
    margin: 0 auto 0;
    max-width: 22em;
    font-family: var(--doc-serif);
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    font-weight: 400;
    line-height: 1.55;
    color: rgba(240, 232, 220, 0.9);
}

.doc-hero__sub-line {
    display: block;
}

/* 仅箭头：底部居中，呼吸跳动 */
.doc-hero__hint {
    position: absolute;
    left: 50%;
    bottom: clamp(20px, 4vh, 36px);
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    color: rgba(247, 244, 239, 0.85);
    text-decoration: none;
    transform: translateX(-50%);
    cursor: pointer;
}

.doc-hero__hint-arrow {
    display: block;
    width: 14px;
    height: 14px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    transform-origin: center;
    animation: docHintBreath 2s ease-in-out infinite;
}

@keyframes docHintBreath {
    0%, 100% {
        opacity: 0.35;
        transform: rotate(45deg) translate(-3px, -3px);
    }
    50% {
        opacity: 1;
        transform: rotate(45deg) translate(3px, 3px);
    }
}

@media (prefers-reduced-motion: reduce) {
    .doc-hero__hint-arrow {
        animation: none;
    }
}


/* ------------------------------------------------------------
   SECTION 01 — Time Written in Stone（杂志对页）
   左图右诗；整段高度锁在一屏内（max ≤80vh），避免文案把图栏撑破视口
   ------------------------------------------------------------ */
.doc-time {
    display: grid;
    grid-template-columns: 1fr 1fr;
    --doc-time-h: min(80vh, 760px);
    height: var(--doc-time-h);
    max-height: var(--doc-time-h);
    min-height: 0;
    background: var(--doc-paper);
    overflow: hidden;
}

@supports (height: 100dvh) {
    .doc-time {
        --doc-time-h: min(80dvh, 760px);
    }
}

.doc-time__figure {
    margin: 0;
    background: #1a1816;
    min-height: 0;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.doc-time__figure img {
    width: 100%;
    height: 100%;
    min-height: 0;
    object-fit: cover;
    object-position: center 40%;
    display: block;
}

/* 图上 kicker 已废弃：标题只在文案区 */
.doc-time__kicker-media {
    display: none;
}

.doc-time__copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: var(--doc-pad-y) var(--doc-pad-x);
    background: #fff;
    min-height: 0;
    overflow: hidden;
}

.doc-time__copy .doc-kicker,
.doc-time__kicker-copy {
    margin: 0 0 28px;
}

/* Hero 下沉的立场句：在 kicker 与诗句之间 */
.doc-time__lead {
    margin: 0 0 1.75rem;
    max-width: 22rem;
    font-family: var(--doc-sans);
    font-size: clamp(0.95rem, 1.35vw, 1.05rem);
    font-weight: 400;
    line-height: 1.55;
    color: var(--doc-mute, #6e685f);
}

.doc-time__lead-line {
    display: block;
}

/* 杂志诗句块：短行 · 衬线 · 左对齐 */
.doc-time__poem {
    max-width: 11em;
}

.doc-time__line {
    margin: 0;
    font-family: var(--doc-serif);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 400;
    line-height: 1.28;
    color: var(--doc-ink);
}

.doc-time__break {
    margin: 0;
    height: 0.85em;
}


/* ------------------------------------------------------------
   SECTION 02 — Geological Time
   kicker 居中 · 横线 + 圆点标识 · 文案左对齐于点
   ------------------------------------------------------------ */
.doc-timeline {
    padding: var(--doc-pad-y) 0;
    background: var(--doc-wash);
    overflow: hidden;
}

.doc-timeline__head {
    margin: 0 0 clamp(48px, 6vw, 72px);
    padding: 0 20px;
    text-align: center;
}

.doc-timeline__head .doc-kicker {
    display: inline-block;
}

.doc-timeline__viewport {
    overflow: hidden;
    padding: 0 clamp(20px, 4vw, 48px);
}

.doc-timeline__rail {
    list-style: none;
    margin: 0 auto;
    padding: 32px 0 0;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0;
    width: 100%;
    max-width: 1080px;
    position: relative;
    will-change: transform;
}

/* 贯通横线 */
.doc-timeline__rail::before {
    content: "";
    position: absolute;
    top: 4px;
    left: 4px;
    right: 4px;
    height: 1px;
    background: rgba(20, 18, 16, 0.22);
    pointer-events: none;
}

.doc-timeline__node {
    position: relative;
    flex: 1 1 0;
    min-width: 0;
    padding: 0 12px 0 0;
    text-align: left;
}

/* 时间点标识：实心圆点压在横线上 */
.doc-timeline__dot {
    position: absolute;
    top: -32px;
    left: 0;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--doc-ink);
    box-shadow: 0 0 0 3px var(--doc-wash);
    z-index: 1;
}

.doc-timeline__label {
    display: block;
    font-family: var(--doc-serif);
    font-size: clamp(1.15rem, 1.8vw, 1.55rem);
    line-height: 1.25;
    color: var(--doc-ink);
}

.doc-timeline__hint {
    display: block;
    margin-top: 10px;
    font-size: 0.875rem;
    line-height: 1.4;
    color: var(--doc-mute);
}

.doc-timeline__connector {
    display: none;
}


/* ------------------------------------------------------------
   SECTION 03 — Stone Origin
   标准窥探：选中主视觉约 85%，两侧窥探 10% / 5%（可轮转）
   垂直居中 · 高度阶梯
   ------------------------------------------------------------ */
.doc-stones {
    padding: var(--doc-pad-y) 0 0;
    background: #12100e;
    color: #f4efe8;
}

.doc-stones .doc-kicker {
    color: rgba(210, 198, 180, 0.72);
}

.doc-stones__detail {
    display: none;
}

.doc-stones__head {
    margin: 0 0 clamp(28px, 4vw, 40px);
    padding: 0 20px;
    text-align: center;
}

.doc-stones__head .doc-kicker {
    display: inline-block;
}

.doc-stones__stage {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: stretch;
    gap: 4px;
    height: min(72vh, 680px);
    min-height: 480px;
    overflow: hidden;
    background: #0c0b0a;
    touch-action: pan-y;
}

.doc-stones__viewport {
    display: block;
}

.doc-stone {
    margin: 0;
    display: flex;
    flex: 1 0 0;
    width: 0;
    height: 78%;
    min-width: 0;
    overflow: hidden;
    background: #1a1714;
    transition:
        flex-grow 0.75s cubic-bezier(0.22, 1, 0.36, 1),
        height 0.75s cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-reduced-motion: reduce) {
    .doc-stone {
        transition-duration: 0.01ms;
    }
}

/* —— 选中第 1 张：85 / 10 / 5 —— */
.doc-stones__stage[data-active="0"] .doc-stone:nth-child(1) {
    flex-grow: 17;
    height: 100%;
}

.doc-stones__stage[data-active="0"] .doc-stone:nth-child(2) {
    flex-grow: 2;
    height: 88%;
}

.doc-stones__stage[data-active="0"] .doc-stone:nth-child(3) {
    flex-grow: 1;
    height: 78%;
}

/* —— 选中第 2 张：7.5 / 85 / 7.5 —— */
.doc-stones__stage[data-active="1"] .doc-stone:nth-child(1) {
    flex-grow: 1.5;
    height: 88%;
}

.doc-stones__stage[data-active="1"] .doc-stone:nth-child(2) {
    flex-grow: 17;
    height: 100%;
}

.doc-stones__stage[data-active="1"] .doc-stone:nth-child(3) {
    flex-grow: 1.5;
    height: 80%;
}

/* —— 选中第 3 张：5 / 10 / 85 —— */
.doc-stones__stage[data-active="2"] .doc-stone:nth-child(1) {
    flex-grow: 1;
    height: 78%;
}

.doc-stones__stage[data-active="2"] .doc-stone:nth-child(2) {
    flex-grow: 2;
    height: 88%;
}

.doc-stones__stage[data-active="2"] .doc-stone:nth-child(3) {
    flex-grow: 17;
    height: 100%;
}

.doc-stone__media {
    position: relative;
    display: block;
    flex: 1 1 auto;
    min-width: 0;
    width: 100%;
    height: 100%;
    padding: 0;
    border: 0;
    background: #151210;
    color: inherit;
    cursor: pointer;
    overflow: hidden;
    text-align: left;
}

/* 选中项内：图略大，详情侧栏不抢戏 */
.doc-stone.is-active .doc-stone__media {
    flex: 1 1 62%;
    width: auto;
    max-width: none;
}

.doc-stone__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transform: scale(1.03);
    transition: transform 0.9s ease, filter 0.45s ease;
}

.doc-stone:not(.is-active) .doc-stone__image {
    filter: brightness(0.68) saturate(0.82);
}

.doc-stone.is-active .doc-stone__image {
    transform: scale(1.05);
    filter: none;
}

.doc-stone__veil {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
        rgba(0, 0, 0, 0.04) 35%,
        rgba(0, 0, 0, 0.55) 100%);
    pointer-events: none;
}

.doc-stone__name {
    position: absolute;
    z-index: 1;
    font-family: var(--doc-serif);
    font-weight: 400;
    color: #fff;
    text-shadow: 0 2px 14px rgba(0, 0, 0, 0.45);
    transition: opacity 0.3s ease, transform 0.4s ease, font-size 0.4s ease;
}

.doc-stone:not(.is-active) .doc-stone__name {
    left: 50%;
    bottom: 24px;
    font-size: clamp(0.85rem, 1.2vw, 1.05rem);
    letter-spacing: 0.14em;
    writing-mode: vertical-rl;
    transform: translateX(-50%) rotate(180deg);
}

.doc-stone.is-active .doc-stone__name {
    left: 24px;
    bottom: 28px;
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    letter-spacing: -0.01em;
    writing-mode: horizontal-tb;
    transform: none;
    white-space: normal;
}

.doc-stone__panel {
    flex: 0 0 0;
    width: 0;
    max-width: 0;
    opacity: 0;
    overflow: hidden;
    padding: 0;
    background: #161310;
    border-left: 0 solid rgba(255, 255, 255, 0.06);
    transition:
        flex-basis 0.75s cubic-bezier(0.22, 1, 0.36, 1),
        max-width 0.75s cubic-bezier(0.22, 1, 0.36, 1),
        opacity 0.45s ease,
        padding 0.55s ease;
}

.doc-stone.is-active .doc-stone__panel {
    flex: 0 0 38%;
    width: 38%;
    max-width: 380px;
    opacity: 1;
    padding: clamp(24px, 3.5vw, 44px) clamp(18px, 2.5vw, 32px);
    border-left: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow-y: auto;
    height: 100%;
}

.doc-stone__panel[hidden] {
    display: none !important;
}

.doc-stone__meta {
    margin: 0;
    display: grid;
    gap: 18px;
}

.doc-stone__row {
    margin: 0;
    padding: 0 0 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.doc-stone__row:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.doc-stone__meta dt {
    margin: 0 0 6px;
    font-size: var(--doc-kicker-size);
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: rgba(210, 198, 180, 0.62);
}

.doc-stone__meta dd {
    margin: 0;
    font-family: var(--doc-serif);
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    line-height: 1.5;
    color: rgba(244, 239, 232, 0.95);
}


/* ------------------------------------------------------------
   SECTION 04 — Not Manufactured（方案 A：上图下文）
   PC / Pad：三列并排；Mobile：纵向堆叠
   图槽 3:4（900×1200 / 800×1067 / 720×960）
   ------------------------------------------------------------ */
.doc-process {
    padding: var(--doc-pad-y) var(--doc-pad-x);
    background: var(--doc-paper);
    text-align: center;
}

.doc-process .doc-kicker {
    margin-bottom: clamp(40px, 6vw, 72px);
}

.doc-process__steps {
    list-style: none;
    margin: 0 auto;
    padding: 0;
    max-width: 1080px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(28px, 4vw, 48px);
    align-items: start;
}

.doc-process__step {
    padding: 0 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.doc-process__media {
    width: 100%;
    max-width: 320px;
    margin: 0 auto clamp(20px, 2.4vw, 28px);
}

.doc-process__picture {
    display: block;
    width: 100%;
}

.doc-process__image {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    object-position: center;
    background: #e8e2d8;
}

.doc-process__title {
    margin: 0 0 12px;
    font-family: var(--doc-serif);
    font-size: clamp(1.55rem, 2.4vw, 2.1rem);
    font-weight: 400;
    color: var(--doc-ink);
}

.doc-process__text {
    margin: 0 auto;
    max-width: 13em;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--doc-text);
}


/* ------------------------------------------------------------
   SECTION 05 — Restaurant Mood
   PC / Pad：整段高度 = 一屏（100dvh），kicker + 左右双图同屏对照
   Mobile（≤768）：恢复改动前 — 上下堆叠 + 图 aspect-ratio 16/11
   ------------------------------------------------------------ */
.doc-mood {
    --doc-mood-vh: 100svh;
    background: #0f0e0c;
    color: #f4efe8;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    height: var(--doc-mood-vh);
    max-height: var(--doc-mood-vh);
    overflow: hidden;
}

@supports (height: 100dvh) {
    .doc-mood {
        --doc-mood-vh: 100dvh;
    }
}

.doc-mood__kicker {
    flex: 0 0 auto;
    margin: 0;
    padding: clamp(16px, 2.4vh, 36px) 20px clamp(10px, 1.4vh, 18px);
    text-align: center;
    font-size: var(--doc-kicker-size);
    font-weight: 600;
    letter-spacing: var(--doc-kicker-track);
    text-transform: uppercase;
    color: rgba(210, 198, 180, 0.7);
    line-height: 1.4;
}

.doc-mood__split {
    flex: 1 1 auto;
    min-height: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
}

.doc-mood__side {
    margin: 0;
    position: relative;
    min-height: 0;
    height: 100%;
    background: #1a1714;
    overflow: hidden;
}

.doc-mood__side img {
    width: 100%;
    height: 100%;
    min-height: 0;
    object-fit: cover;
    display: block;
}

.doc-mood__side figcaption {
    position: absolute;
    left: 18px;
    bottom: 18px;
    font-family: var(--doc-serif);
    font-size: 1.2rem;
    color: #fff;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
}


/* ============================================================
   Tablet（pad）— ≤1100px
   ============================================================ */
@media (max-width: 1100px) {
    .doc-stones__stage {
        height: min(70vh, 640px);
        min-height: 460px;
    }

    .doc-stone.is-active .doc-stone__panel {
        flex-basis: 40%;
        width: 40%;
        max-width: 340px;
        padding: 22px 18px;
    }

    .doc-stone.is-active .doc-stone__media {
        flex-basis: 60%;
    }
}

@media (max-width: 1024px) {
    .doc-time {
        --doc-time-h: min(78vh, 700px);
        height: var(--doc-time-h);
        max-height: var(--doc-time-h);
    }

    .doc-time__figure img {
        min-height: 0;
    }

    .doc-time__copy {
        padding: 40px 32px;
    }

    .doc-timeline__rail {
        max-width: none;
        width: max-content;
        min-width: 100%;
        gap: 0;
        justify-content: flex-start;
    }

    .doc-timeline__node {
        flex: 0 0 auto;
        width: 168px;
        padding-right: 28px;
    }

    .doc-timeline__rail::before {
        right: 28px;
    }

    .doc-stones__stage {
        height: min(70vh, 640px);
        min-height: 440px;
    }

    .doc-process__steps {
        gap: 24px;
    }
}


/* ============================================================
   Mobile — ≤768px
   ============================================================ */
@media (max-width: 768px) {
    .page-origins-doc {
        font-size: 16px;
    }

    /* Hero：移动端文案垂直居中，箭头仍贴底 */
    .doc-hero {
        align-items: center;
    }

    .doc-hero__veil {
        /* 移动端略加深：仍走 stories 分套令牌，避免写死另一套 rgba */
        background: var(--lp-hero-overlay-stories);
        opacity: 1;
        box-shadow: inset 0 0 0 9999px rgba(0, 0, 0, 0.08);
    }

    .doc-hero__copy {
        width: calc(100% - 32px);
        padding: 0;
        margin-top: -6vh;
    }

    .doc-hero__title {
        font-size: clamp(2rem, 9vw, 2.6rem);
    }

    .doc-hero__subtitle {
        font-size: 1.05rem;
    }

    /* §01：图下文；kicker / lead / 诗句同在文案区排布 */
    .doc-time {
        grid-template-columns: 1fr;
        height: auto;
        max-height: none;
        overflow: visible;
    }

    .doc-time__figure {
        height: auto;
        max-height: 58vh;
        overflow: hidden;
    }

    .doc-time__figure img {
        min-height: 0;
        width: 100%;
        height: auto;
        aspect-ratio: 8 / 9;
        object-fit: cover;
        object-position: center 40%;
    }

    .doc-time__kicker-media {
        display: none;
    }

    .doc-time__kicker-copy {
        display: block;
        margin: 0 0 1.1rem;
    }

    .doc-time__copy {
        padding: var(--doc-pad-y) var(--doc-pad-x);
        min-height: 0;
    }

    .doc-time__lead {
        margin: 0 0 1.35rem;
        max-width: none;
    }

    .doc-time__poem {
        max-width: 16em;
    }

    .doc-time__line {
        font-size: clamp(1.45rem, 6vw, 1.75rem);
        line-height: 1.4;
    }

    .doc-time__break {
        height: 0.7em;
    }

    /* §02：竖轴 + 圆点标识 */
    .doc-timeline {
        padding: 64px 0 72px;
    }

    .doc-timeline__head {
        margin-bottom: 40px;
    }

    .doc-timeline__viewport {
        padding: 0 24px;
        overflow: visible;
    }

    .doc-timeline__rail {
        display: block;
        width: 100%;
        max-width: 28em;
        margin: 0 auto;
        padding: 0 0 0 22px;
        transform: none !important;
        border-left: 1px solid rgba(20, 18, 16, 0.22);
    }

    .doc-timeline__rail::before {
        display: none;
    }

    .doc-timeline__node {
        width: auto;
        padding: 0 0 36px 24px;
        position: relative;
    }

    .doc-timeline__node:last-child {
        padding-bottom: 0;
    }

    .doc-timeline__dot {
        top: 6px;
        left: -27px;
        box-shadow: 0 0 0 3px var(--doc-wash);
    }

    .doc-timeline__label {
        font-size: 1.35rem;
    }

    /* §03：移动端窥探
       布局宽：选中卡 = 85% 视口（flex-basis），侧垫 7.5% 露出邻卡
       梯度：仅未选中卡 scale + 压暗；选中卡禁止缩小（修复特异性踩踏）
    */
    .doc-stones {
        position: relative;
        padding-bottom: 0;
        --doc-stones-main: 85%;
        --doc-stones-side: 7.5%; /* (100% - 85%) / 2 */
        --doc-stones-gap: 4px;
    }

    .doc-stones__head {
        margin-bottom: 16px;
        padding: 0 20px;
    }

    .doc-stones__viewport {
        width: 100%;
        overflow: hidden;
        touch-action: pan-x pan-y;
    }

    .doc-stones__stage {
        display: flex;
        align-items: center;
        box-sizing: border-box;
        width: 100%;
        gap: var(--doc-stones-gap);
        height: auto;
        min-height: 0;
        overflow-x: auto;
        overflow-y: hidden;
        scroll-snap-type: x mandatory;
        scroll-snap-stop: always;
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding: 14px var(--doc-stones-side) 12px;
        touch-action: pan-x pan-y;
        transform: none !important;
        will-change: auto;
        background: #0c0b0a;
    }

    .doc-stones__stage::-webkit-scrollbar {
        display: none;
    }

    /* 每张卡布局宽度 85% — 选中视觉主面积 */
    .doc-stones__stage.is-peek .doc-stone,
    .doc-stones__stage[data-active] .doc-stone {
        flex: 0 0 var(--doc-stones-main) !important;
        width: var(--doc-stones-main) !important;
        max-width: var(--doc-stones-main);
        height: auto !important;
        min-width: 0;
        min-height: 0;
        box-sizing: border-box;
        display: flex;
        flex-direction: column;
        overflow: hidden;
        background: #1a1714;
        scroll-snap-align: center;
        transform-origin: center center;
        transform: none;
        opacity: 1;
        z-index: 0;
        transition:
            transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94),
            opacity 0.35s ease;
    }

    .doc-stones__stage.is-peek .doc-stone__media,
    .doc-stones__stage.is-peek .doc-stone.is-active .doc-stone__media {
        display: block;
        width: 100%;
        max-width: none;
        /* 限制高度：图 + 详情尽量同屏，避免 3/4 过高把 Color/Age 顶出视口 */
        height: clamp(200px, 36vh, 280px) !important;
        aspect-ratio: auto;
        flex: none;
        min-height: 0;
    }

    .doc-stones__stage.is-peek .doc-stone__image {
        width: 100%;
        height: 100%;
        object-fit: cover;
        object-position: center;
        transition: filter 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        filter: brightness(0.55) saturate(0.75);
    }

    /* 选中：保持 85% 布局宽，绝不 scale 缩小 */
    .doc-stones__stage.is-peek .doc-stone.is-active {
        transform: none !important;
        opacity: 1;
        z-index: 2;
    }

    .doc-stones__stage.is-peek .doc-stone.is-active .doc-stone__image {
        filter: none;
    }

    /* 近邻窥探：略缩小 + 压暗（不影响选中卡宽度） */
    .doc-stones__stage.is-peek[data-active="0"] .doc-stone:nth-child(2):not(.is-active),
    .doc-stones__stage.is-peek[data-active="1"] .doc-stone:nth-child(1):not(.is-active),
    .doc-stones__stage.is-peek[data-active="1"] .doc-stone:nth-child(3):not(.is-active),
    .doc-stones__stage.is-peek[data-active="2"] .doc-stone:nth-child(2):not(.is-active) {
        transform: scale(0.9);
        opacity: 0.88;
        z-index: 1;
    }

    .doc-stones__stage.is-peek[data-active="0"] .doc-stone:nth-child(2):not(.is-active) .doc-stone__image,
    .doc-stones__stage.is-peek[data-active="1"] .doc-stone:nth-child(1):not(.is-active) .doc-stone__image,
    .doc-stones__stage.is-peek[data-active="1"] .doc-stone:nth-child(3):not(.is-active) .doc-stone__image,
    .doc-stones__stage.is-peek[data-active="2"] .doc-stone:nth-child(2):not(.is-active) .doc-stone__image {
        filter: brightness(0.7) saturate(0.85);
    }

    /* 远端窥探：更小更暗 */
    .doc-stones__stage.is-peek[data-active="0"] .doc-stone:nth-child(3):not(.is-active),
    .doc-stones__stage.is-peek[data-active="2"] .doc-stone:nth-child(1):not(.is-active) {
        transform: scale(0.82);
        opacity: 0.72;
        z-index: 0;
    }

    .doc-stones__stage.is-peek[data-active="0"] .doc-stone:nth-child(3):not(.is-active) .doc-stone__image,
    .doc-stones__stage.is-peek[data-active="2"] .doc-stone:nth-child(1):not(.is-active) .doc-stone__image {
        filter: brightness(0.5) saturate(0.72);
    }

    /* 选中②：右侧略矮一档 */
    .doc-stones__stage.is-peek[data-active="1"] .doc-stone:nth-child(3):not(.is-active) {
        transform: scale(0.86);
        opacity: 0.8;
    }

    .doc-stones__stage.is-peek[data-active="1"] .doc-stone:nth-child(3):not(.is-active) .doc-stone__image {
        filter: brightness(0.6) saturate(0.8);
    }

    .doc-stones__stage.is-peek .doc-stone:not(.is-active) .doc-stone__name {
        left: 50%;
        top: auto;
        bottom: 12px;
        writing-mode: horizontal-tb;
        transform: translateX(-50%);
        font-size: 0.72rem;
        letter-spacing: 0.04em;
        white-space: nowrap;
    }

    .doc-stones__stage.is-peek .doc-stone.is-active .doc-stone__name {
        left: 14px;
        bottom: 14px;
        top: auto;
        font-size: clamp(1.35rem, 5.5vw, 1.7rem);
        transform: none;
        writing-mode: horizontal-tb;
    }

    @media (prefers-reduced-motion: reduce) {
        .doc-stones__stage.is-peek .doc-stone,
        .doc-stones__stage.is-peek .doc-stone__image {
            transition: none;
        }
    }

    .doc-stones__detail {
        display: block;
    }

    .doc-stones__detail .doc-stone__panel:not([hidden]) {
        display: block;
        width: 100%;
        max-width: none;
        flex: none;
        height: auto;
        margin: 0;
        padding: 16px 16px 20px;
        border-left: 0;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        opacity: 1;
        background: #161310;
        position: static;
        scroll-margin-bottom: 24px;
        animation: docStonePanelIn 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    }

    @keyframes docStonePanelIn {
        from { opacity: 0; transform: translateY(10px); }
        to   { opacity: 1; transform: translateY(0); }
    }

    .doc-stone__meta {
        gap: 8px;
    }

    .doc-stone__row {
        padding-bottom: 8px;
    }

    .doc-stones__detail .doc-stone__meta dt {
        margin-bottom: 3px;
        font-size: 0.62rem;
        letter-spacing: 0.12em;
    }

    .doc-stone__meta dd,
    .doc-stones__detail .doc-stone__meta dd {
        font-size: 0.84rem;
        line-height: 1.35;
    }

    /* §04 工艺三步竖排 — 上图下文纵向堆叠 */
    .doc-process {
        padding: 72px 20px;
    }

    .doc-process__steps {
        grid-template-columns: 1fr;
        gap: clamp(36px, 8vw, 48px);
        max-width: 22em;
    }

    .doc-process__step {
        padding: 0;
        border-bottom: 0;
    }

    .doc-process__media {
        max-width: 280px;
        margin-bottom: 18px;
    }

    .doc-process__title {
        margin-bottom: 10px;
    }

    /* §05 Mood 上下对照（恢复未改前样式：单列 + 16/11） */
    .doc-mood {
        display: block;
        height: auto;
        max-height: none;
        overflow: visible;
    }

    .doc-mood__kicker {
        padding: clamp(32px, 4vw, 48px) 20px 16px;
    }

    .doc-mood__split {
        display: grid;
        grid-template-columns: 1fr;
        flex: none;
        min-height: 0;
        height: auto;
    }

    .doc-mood__side {
        height: auto;
        max-height: none;
        min-height: 0;
    }

    .doc-mood__side img {
        min-height: 0;
        width: 100%;
        aspect-ratio: 16 / 11;
        height: auto;
        object-fit: cover;
        object-position: center;
    }

    .doc-mood__side figcaption {
        left: 18px;
        bottom: 18px;
        font-size: 1.2rem;
    }
}


/* ============================================================
   窄屏手机 — ≤480px
   ============================================================ */
@media (max-width: 480px) {
    .doc-time__copy {
        padding: 40px 20px 56px;
    }

    .doc-time__line {
        font-size: 1.55rem;
    }

    .doc-timeline__viewport {
        padding: 0 20px;
    }

    .doc-stones__head,
    .doc-mood__kicker {
        padding-left: 16px;
        padding-right: 16px;
    }

    .doc-stones__detail .doc-stone__panel:not([hidden]) {
        padding: 20px 16px 24px;
    }

    .doc-stone.is-active .doc-stone__name {
        left: 10px;
        bottom: 10px;
        font-size: 1.2rem;
    }
}