/* ============================================================
   stories_hub.css — /stories 总览

   规范（长期）：
   · 内容：生活案例 + 文章，不是产品目录
   · 布局：12 列不规则马赛克（feature / tall / wide / square / compact）
   · 卡片：交互容器可有轻微圆角与遮罩；勿做成通用商品卡栅格
   · 动效：首屏大字上涌（参考 ads.tiktok.com 气质）+ 卡片视口交错入场
   · 禁止在本文件写 :root；令牌挂在 .page-stories-hub
   · section 之间 margin:0，留白只用 padding
   ============================================================ */

.page-stories-hub {
    --stories-ink: var(--lp-text-primary, #1a2f34);
    --stories-muted: var(--lp-text-secondary, #5a6b6e);
    --stories-accent: var(--lp-marketing-accent, #205058);
    --stories-surface: #f3f1ec;
    --stories-hero-bg: #1c2a2d;
    --stories-hero-fg: #f7f4ef;
    --stories-gap: clamp(12px, 1.6vw, 20px);
    --stories-ease: cubic-bezier(0.16, 1, 0.3, 1);
    --stories-font-display: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --stories-font-body: 'Source Sans 3', 'Inter', system-ui, sans-serif;
    background: var(--stories-surface);
}

.page-stories-hub .nadulite-main {
    overflow-x: clip;
}

/* ── Hero ─────────────────────────────────────────────────── */

.stories-hub-hero {
    position: relative;
    min-height: min(92vh, 920px);
    display: flex;
    align-items: flex-end;
    padding: clamp(72px, 12vh, 140px) var(--hlp-pad-x) clamp(48px, 8vh, 96px);
    color: var(--stories-hero-fg);
    background: var(--stories-hero-bg);
    overflow: hidden;
}

/* 实拍底图（可选；STORIES_HUB.hero_image*） */
.stories-hub-hero__media {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.stories-hub-hero__picture,
.stories-hub-hero__bg-image {
    display: block;
    width: 100%;
    height: 100%;
}

.stories-hub-hero__bg-image {
    object-fit: cover;
    object-position: center center;
}

.stories-hub-hero__atmosphere {
    position: absolute;
    inset: 0;
    z-index: 1;
    /*
     * Stories Hub 无实景 Hero 图时用氛围渐变（非 lp-hero-overlay）。
     * 分套仍归 stories；实景着陆页 veil 用 --lp-hero-overlay-stories。
     */
    background:
        radial-gradient(120% 80% at 12% 88%, rgba(32, 80, 88, 0.55) 0%, transparent 55%),
        radial-gradient(90% 70% at 88% 18%, rgba(180, 150, 110, 0.18) 0%, transparent 50%),
        linear-gradient(165deg, #152226 0%, #24363a 48%, #1a282c 100%);
    transform: scale(1.06);
    transition: transform 1.8s var(--stories-ease);
}

/* 有图：左侧略深托白字，右侧略透出餐盘氛围 */
.stories-hub-hero--has-image .stories-hub-hero__atmosphere {
    background:
        linear-gradient(
            105deg,
            rgba(12, 20, 22, 0.82) 0%,
            rgba(12, 20, 22, 0.62) 38%,
            rgba(12, 20, 22, 0.38) 72%,
            rgba(12, 20, 22, 0.28) 100%
        ),
        radial-gradient(90% 70% at 88% 18%, rgba(180, 150, 110, 0.12) 0%, transparent 50%);
}

.page-stories-hub.is-stories-ready .stories-hub-hero__atmosphere {
    transform: scale(1);
}

.stories-hub-hero__inner {
    position: relative;
    z-index: 2;
    max-width: 1180px;
    width: 100%;
    margin: 0 auto;
}

.stories-hub-hero__eyebrow {
    margin: 0 0 1.25rem;
    font-family: var(--stories-font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: rgba(247, 244, 239, 0.72);
}

.stories-hub-hero__title {
    margin: 0;
    font-family: var(--stories-font-display);
    font-weight: 500;
    font-size: clamp(3.25rem, 11vw, 7.5rem);
    line-height: 0.95;
    letter-spacing: -0.02em;
}

.stories-hub-hero__line {
    display: block;
    overflow: hidden;
    padding-bottom: 0.06em;
}

.stories-hub-hero__line-inner {
    display: block;
    will-change: transform, opacity, filter;
}

.stories-hub-hero__lead {
    margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
    max-width: 34rem;
    font-family: var(--stories-font-body);
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    line-height: 1.55;
    color: rgba(247, 244, 239, 0.82);
}

.stories-hub-hero__scroll {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.55rem;
    margin-top: clamp(2rem, 5vh, 3.5rem);
    font-family: var(--stories-font-body);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--stories-hero-fg);
    text-decoration: none;
    border-bottom: none;
    padding-bottom: 0;
    transition: color 0.35s ease, opacity 0.35s ease;
}

/* 覆盖全局 a:hover accent — 暗底上保持暖白高对比，勿融进 hero 底色 */
.page-stories-hub a.stories-hub-hero__scroll:hover,
.page-stories-hub a.stories-hub-hero__scroll:focus-visible {
    color: #fff;
    opacity: 1;
}

.stories-hub-hero__scroll-icon {
    width: 10px;
    height: 10px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    animation: storiesScrollNudge 1.8s var(--stories-ease) infinite;
}

@keyframes storiesScrollNudge {
    0%, 100% { transform: rotate(45deg) translate(0, 0); opacity: 0.65; }
    50% { transform: rotate(45deg) translate(0, 3px); opacity: 1; }
}

/* Hero 入场初始态（JS 加 .is-stories-ready 后播放） */
.stories-hub-anim {
    opacity: 0;
    transform: translate3d(0, 110%, 0);
    filter: blur(8px);
}

.page-stories-hub.is-stories-ready .stories-hub-anim {
    animation: storiesHeroRise 1.05s var(--stories-ease) forwards;
}

.page-stories-hub.is-stories-ready .stories-hub-anim[data-stories-anim="eyebrow"] {
    animation-delay: 0.08s;
}

.page-stories-hub.is-stories-ready .stories-hub-anim[data-stories-anim="title"] {
    animation-delay: calc(0.22s + (var(--stories-delay, 0) * 0.11s));
}

.page-stories-hub.is-stories-ready .stories-hub-anim[data-stories-anim="lead"] {
    animation-delay: 0.62s;
    transform: translate3d(0, 28px, 0);
}

.page-stories-hub.is-stories-ready .stories-hub-anim[data-stories-anim="scroll"] {
    animation-delay: 0.82s;
    transform: translate3d(0, 20px, 0);
    filter: blur(4px);
}

@keyframes storiesHeroRise {
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
        filter: blur(0);
    }
}

/* ── Mosaic ───────────────────────────────────────────────── */

.stories-hub-mosaic {
    padding: var(--hlp-pad-y) var(--hlp-pad-x);
    background: var(--stories-surface);
}

.stories-hub-mosaic__inner {
    max-width: 1280px;
    margin: 0 auto;
}

.stories-hub-mosaic__head {
    margin: 0 0 clamp(28px, 4vw, 48px);
    max-width: 36rem;
}

.stories-hub-mosaic__kicker {
    margin: 0 0 0.5rem;
    font-family: var(--stories-font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--stories-accent);
}

.stories-hub-mosaic__heading {
    margin: 0;
    font-family: var(--stories-font-display);
    font-weight: 500;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.1;
    color: var(--stories-ink);
}

.stories-hub-mosaic__grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    grid-auto-rows: minmax(140px, auto);
    gap: var(--stories-gap);
    align-items: stretch;
}

/* 不规则 span 地图 */
.stories-card--feature {
    grid-column: span 7;
    grid-row: span 2;
    min-height: 420px;
}

.stories-card--tall {
    grid-column: span 5;
    grid-row: span 2;
    min-height: 420px;
}

.stories-card--wide {
    grid-column: span 8;
    grid-row: span 2;
    min-height: 320px;
}

.stories-card--square {
    grid-column: span 4;
    grid-row: span 2;
    min-height: 320px;
}

.stories-card--compact {
    grid-column: span 4;
    grid-row: span 1;
    min-height: 240px;
}

.stories-card {
    position: relative;
    border-radius: 4px;
    overflow: hidden;
    background: #2a3436;
    isolation: isolate;
}

.stories-card__link {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: inherit;
    color: inherit;
    text-decoration: none;
}

.stories-card__media {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.stories-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.04);
    transition: transform 1.1s var(--stories-ease);
}

.stories-card__shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(18, 28, 30, 0.15) 0%,
        rgba(18, 28, 30, 0.35) 42%,
        rgba(18, 28, 30, 0.82) 100%
    );
    transition: opacity 0.5s ease;
}

.stories-card__body {
    position: relative;
    z-index: 1;
    margin-top: auto;
    padding: clamp(1.1rem, 2.2vw, 1.75rem);
    color: #f7f4ef;
}

.stories-card__kicker {
    margin: 0 0 0.45rem;
    font-family: var(--stories-font-body);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: rgba(247, 244, 239, 0.72);
}

.stories-card__title {
    margin: 0;
    font-family: var(--stories-font-display);
    font-weight: 500;
    font-size: clamp(1.35rem, 2.4vw, 2.15rem);
    line-height: 1.15;
    letter-spacing: -0.01em;
}

.stories-card--compact .stories-card__title {
    font-size: clamp(1.15rem, 2vw, 1.45rem);
}

.stories-card__excerpt {
    margin: 0.65rem 0 0;
    max-width: 36ch;
    font-family: var(--stories-font-body);
    font-size: 0.9375rem;
    line-height: 1.5;
    color: rgba(247, 244, 239, 0.82);
}

.stories-card--compact .stories-card__excerpt {
    display: none;
}

.stories-card__cta {
    display: inline-block;
    margin-top: 1rem;
    font-family: var(--stories-font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border-bottom: 1px solid rgba(247, 244, 239, 0.4);
    padding-bottom: 0.2rem;
    transition: border-color 0.3s ease;
}

.stories-card:hover .stories-card__img,
.stories-card:focus-within .stories-card__img {
    transform: scale(1.1);
}

.stories-card:hover .stories-card__cta,
.stories-card:focus-within .stories-card__cta {
    border-color: rgba(247, 244, 239, 0.95);
}

.stories-card--accent .stories-card__shade {
    background: linear-gradient(
        160deg,
        rgba(32, 80, 88, 0.55) 0%,
        rgba(18, 36, 40, 0.88) 100%
    );
}

/* 滚动揭示 */
.stories-hub-reveal {
    opacity: 0;
    transform: translate3d(0, 36px, 0) scale(0.985);
    filter: blur(4px);
    transition:
        opacity 0.9s var(--stories-ease),
        transform 0.9s var(--stories-ease),
        filter 0.9s var(--stories-ease);
    transition-delay: calc(var(--stories-stagger, 0) * 70ms);
}

.stories-hub-reveal.is-in {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
    filter: blur(0);
}

/* ── Responsive ───────────────────────────────────────────── */

@media (max-width: 1024px) {
    .stories-card--feature,
    .stories-card--tall,
    .stories-card--wide,
    .stories-card--square,
    .stories-card--compact {
        grid-column: span 6;
        grid-row: span 1;
        min-height: 300px;
    }

    .stories-card--feature {
        grid-column: span 12;
        min-height: 360px;
    }
}

@media (max-width: 768px) {
    .stories-hub-hero {
        min-height: min(88vh, 760px);
        align-items: center;
        padding-top: clamp(64px, 14vh, 100px);
    }

    .stories-hub-mosaic__grid {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
    }

    .stories-card--feature,
    .stories-card--tall,
    .stories-card--wide,
    .stories-card--square,
    .stories-card--compact {
        grid-column: auto;
        min-height: 280px;
    }

    .stories-card--compact .stories-card__excerpt {
        display: block;
    }
}

@media (prefers-reduced-motion: reduce) {
    .stories-hub-anim,
    .stories-hub-reveal,
    .stories-card__img,
    .stories-hub-hero__atmosphere,
    .stories-hub-hero__scroll-icon {
        animation: none !important;
        transition: none !important;
        opacity: 1 !important;
        transform: none !important;
        filter: none !important;
    }
}