/**
 * OptiSolex Case Study — 页面专属布局（.wd-ox-* 前缀）。
 * 来源：dotnfilm-optisolex/project/OptiSolex Case Study.dc.html 内联 style 抽取。
 * 颜色一律引用共享层 --wd-* token；构图性渐变遮罩用 rgba(10,10,10,x)（= --wd-bg #0A0A0A 底色，
 * CSS 渐变无法直接对 var 加 alpha，故此处保留字面 rgba 并注明对应 token）。
 * 桌面优先，多列 grid 在 ≤768px 单列降级；filmstrip 父容器 overflow-hidden。
 */

/* ---------- 通用排版元件 ---------- */
.wd-ox-eyebrow {
    font-size: 14px;
    font-weight: 500;
    color: var(--wd-accent);
    letter-spacing: 0.04em;
    margin-bottom: 24px;
}
.wd-ox-h2 {
    margin: 0 0 24px;
    font-size: clamp(28px, 3.4vw, 44px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    text-wrap: balance;
}
.wd-ox-h2--flush { margin: 0; }
.wd-ox-p {
    margin: 0 0 16px;
    color: var(--wd-text-2);
    text-wrap: pretty;
}
.wd-ox-p:last-child { margin-bottom: 0; }
.wd-ox-p--strong {
    color: var(--wd-text);
    font-weight: 500;
}
.wd-ox-prose { max-width: 760px; }
.wd-ox-sidelabel {
    font-size: 14px;
    font-weight: 500;
    color: var(--wd-text-3);
}
.wd-ox-accent { color: var(--wd-accent); }

/* ---------- Hero（原型 32-47 行） ---------- */
.wd-ox-hero {
    position: relative;
    min-height: 88vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    overflow: hidden;
}
.wd-ox-hero__img,
.wd-ox-hero__img img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.wd-ox-hero__img { filter: grayscale(1) contrast(1.05) brightness(0.72); }
/* 构图遮罩：rgba(10,10,10,x) = --wd-bg 底色叠加渐变 */
.wd-ox-hero__scrim {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 10, 10, 0.35) 0%, rgba(10, 10, 10, 0.1) 40%, rgba(10, 10, 10, 0.88) 100%);
}
.wd-ox-hero__inner {
    position: relative;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 32px 64px;
    box-sizing: border-box;
}
.wd-ox-hero__title {
    margin: 0;
    font-size: clamp(48px, 7.5vw, 104px);
    font-weight: 700;
    line-height: 1.02;
    letter-spacing: -0.035em;
    max-width: 1000px;
    text-wrap: balance;
}
.wd-ox-hero__lede {
    margin: 24px 0 0;
    font-size: clamp(17px, 1.8vw, 22px);
    color: var(--wd-text-2);
    max-width: 640px;
    text-wrap: pretty;
}
.wd-ox-hero__meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 24px;
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--wd-line-soft);
    font-size: 14px;
}
.wd-ox-meta-item__label { color: var(--wd-text-3); margin-bottom: 4px; }
.wd-ox-meta-item__value { font-weight: 500; }

/* ---------- Numbers（原型 49-68 行） ---------- */
.wd-ox-numbers-section { border-bottom: 1px solid var(--wd-line); }
.wd-ox-numbers {
    padding-top: 64px;
    padding-bottom: 64px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0;
}
.wd-ox-num {
    padding: 8px 32px;
    border-right: 1px solid var(--wd-line);
}
.wd-ox-num--first { padding-left: 0; }
.wd-ox-num--last { padding-right: 0; border-right: 0; }
.wd-ox-num__value {
    font-size: 48px;
    font-weight: 700;
    letter-spacing: -0.03em;
}
.wd-ox-num__value--accent { color: var(--wd-accent); }
.wd-ox-num__label {
    font-size: 14px;
    color: var(--wd-text-2);
    margin-top: 4px;
}

/* ---------- Brief（原型 70-78 行） ---------- */
.wd-ox-brief {
    padding-top: 112px;
    padding-bottom: 96px;
    display: grid;
    grid-template-columns: minmax(140px, 220px) 1fr;
    gap: 48px;
}

/* ---------- Deliverables index（原型 80-102 行） ---------- */
.wd-ox-index { padding-bottom: 112px; }
.wd-ox-index__head {
    font-size: 14px;
    font-weight: 500;
    color: var(--wd-text-3);
    padding-bottom: 16px;
    border-bottom: 1px solid var(--wd-line);
}
.wd-ox-index__row {
    display: grid;
    grid-template-columns: 64px 1fr 1.4fr;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid var(--wd-line);
    align-items: baseline;
    transition: background 200ms cubic-bezier(0.4, 0, 0.2, 1);
}
.wd-ox-index__row:hover { background: var(--wd-surface); }
.wd-ox-index__num { color: var(--wd-text-3); font-size: 14px; }
.wd-ox-index__title {
    font-weight: 700;
    font-size: 22px;
    letter-spacing: -0.025em;
}
.wd-ox-index__desc { color: var(--wd-text-2); }

/* ---------- Films（原型 104-149 行） ---------- */
.wd-ox-films-section {
    border-top: 1px solid var(--wd-line);
    border-bottom: 1px solid var(--wd-line);
    background: var(--wd-surface);
}
.wd-ox-films { padding-top: 96px; padding-bottom: 96px; }
.wd-ox-films__head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 48px;
}
.wd-ox-films__note { font-size: 14px; color: var(--wd-text-3); }
.wd-ox-films__grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 24px;
    align-items: stretch;
}
.wd-ox-films__col { display: flex; }
.wd-ox-film-main {
    aspect-ratio: 16 / 9;
    width: 100%;
    cursor: pointer;
}
.wd-ox-film-side {
    width: 100%;
    min-height: 280px;
    cursor: pointer;
}
/* 视频封面图缩放微动效（原型 stills 图 transition:transform） */
.wd-ox-film-main .wd-film-card__img,
.wd-ox-film-main .wd-film-card__img img {
    transition: transform 400ms cubic-bezier(0.4, 0, 0.2, 1);
}
.wd-ox-film-main[data-wd-video]:hover .wd-film-card__img img,
.wd-ox-film-main[data-wd-video]:hover .wd-film-card__img { transform: scale(1.03); }
/* 无视频（静态封面）不显示指针手势 */
.wd-film-card:not([data-wd-video]) { cursor: default; }

/* ---------- Planning for reuse（原型 151-187 行） ---------- */
.wd-ox-planning { padding-top: 112px; padding-bottom: 112px; }
.wd-ox-planning__intro {
    display: grid;
    grid-template-columns: minmax(140px, 220px) 1fr;
    gap: 48px;
    margin-bottom: 64px;
}
.wd-ox-planning__cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}
.wd-ox-planning__outro {
    margin: 48px auto 0;
    max-width: 760px;
}
.wd-ox-card {
    background: var(--wd-surface);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.wd-ox-card__img,
.wd-ox-card__img img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    display: block;
}
.wd-ox-card__body { padding: 24px 24px 32px; }
.wd-ox-card__num { font-size: 14px; color: var(--wd-text-3); margin-bottom: 8px; }
.wd-ox-card__title {
    font-weight: 700;
    font-size: 22px;
    letter-spacing: -0.025em;
    margin-bottom: 8px;
}
.wd-ox-card__desc {
    margin: 0;
    font-size: 15px;
    color: var(--wd-text-2);
    text-wrap: pretty;
}

/* ---------- Filmstrip（原型 189-204 行） ---------- */
.wd-ox-filmstrip-section {
    padding: 0 0 112px;
    overflow: hidden;
}
.wd-ox-filmstrip__head {
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}
.wd-ox-sidelabel--inline { font-weight: 500; }
.wd-ox-filmstrip__hint { font-size: 14px; color: var(--wd-text-3); }
.wd-ox-filmstrip__track {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    padding: 0 32px;
    scrollbar-width: none;
}
.wd-ox-filmstrip__track::-webkit-scrollbar { display: none; }
.wd-ox-filmstrip__img,
.wd-ox-filmstrip__img img {
    height: 340px;
    width: auto;
    border-radius: 8px;
    flex: none;
    display: block;
}

/* ---------- Shooting in Australia（原型 206-216 行） ---------- */
.wd-ox-australia-section { border-top: 1px solid var(--wd-line); }
.wd-ox-australia {
    padding-top: 112px;
    padding-bottom: 112px;
    display: grid;
    grid-template-columns: minmax(140px, 220px) 1fr;
    gap: 48px;
}

/* ---------- Methodology（原型 218-222 行） ---------- */
.wd-ox-methodology {
    max-width: 980px;
    padding-top: 128px;
    padding-bottom: 128px;
    text-align: left;
}
.wd-ox-methodology__label { margin-bottom: 24px; }
.wd-ox-methodology__lead {
    margin: 0;
    font-size: clamp(28px, 3.6vw, 48px);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
    text-wrap: balance;
}
.wd-ox-methodology__body {
    margin: 32px 0 0;
    max-width: 700px;
}

/* ---------- Outcome（原型 224-236 行） ---------- */
.wd-ox-outcome-section { border-top: 1px solid var(--wd-line); }
.wd-ox-outcome {
    padding-top: 112px;
    padding-bottom: 112px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}
.wd-ox-outcome__p { margin-bottom: 16px; }
.wd-ox-outcome__card {
    display: block;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--wd-line);
    transition: border-color 200ms cubic-bezier(0.4, 0, 0.2, 1);
}
.wd-ox-outcome__card:hover { border-color: var(--wd-accent); }
.wd-ox-outcome__img,
.wd-ox-outcome__img img {
    width: 100%;
    display: block;
}
.wd-ox-outcome__caption {
    padding: 16px 24px;
    font-size: 14px;
    color: var(--wd-text-2);
    display: flex;
    justify-content: space-between;
    background: var(--wd-surface);
}

/* ---------- Closing（原型 238-248 行） ---------- */
.wd-ox-closing {
    position: relative;
    min-height: 64vh;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
}
.wd-ox-closing__img,
.wd-ox-closing__img img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.wd-ox-closing__img { filter: brightness(0.8); }
/* 构图遮罩：rgba(10,10,10,x) = --wd-bg 底色叠加渐变 */
.wd-ox-closing__scrim {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 10, 10, 0.5) 0%, rgba(10, 10, 10, 0.15) 45%, rgba(10, 10, 10, 0.9) 100%);
}
.wd-ox-closing__inner {
    position: relative;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 96px 32px 80px;
    box-sizing: border-box;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
}
.wd-ox-closing__eyebrow {
    font-size: 14px;
    font-weight: 500;
    color: var(--wd-text-2);
    margin-bottom: 16px;
}
.wd-ox-closing__title {
    font-size: clamp(34px, 4.5vw, 64px);
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1.05;
}
.wd-ox-cta {
    flex: none;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--wd-accent);
    color: var(--wd-bg);
    font-weight: 500;
    font-size: 17px;
    padding: 16px 32px;
    border-radius: 980px;
    transition: background 200ms cubic-bezier(0.4, 0, 0.2, 1);
}
.wd-ox-cta:hover { background: var(--wd-accent-hover); color: var(--wd-bg); }
.wd-ox-cta:active { background: var(--wd-accent-active); color: var(--wd-bg); }

/* ==========================================================================
   响应式：多列 grid ≤768px 单列降级（原型桌面优先）
   ========================================================================== */
@media (max-width: 768px) {
    .wd-ox-brief,
    .wd-ox-planning__intro,
    .wd-ox-australia {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .wd-ox-brief { padding-top: 72px; padding-bottom: 64px; }
    .wd-ox-planning { padding-top: 72px; padding-bottom: 72px; }
    .wd-ox-australia { padding-top: 72px; padding-bottom: 72px; }

    .wd-ox-films__grid { grid-template-columns: 1fr; }
    .wd-ox-film-main { aspect-ratio: 16 / 9; }

    .wd-ox-outcome { grid-template-columns: 1fr; gap: 40px; }

    .wd-ox-numbers { padding-top: 48px; padding-bottom: 48px; }
    /* 单列堆叠时右侧竖线换成底部横线 */
    .wd-ox-num {
        padding: 24px 0;
        border-right: 0;
        border-bottom: 1px solid var(--wd-line);
    }
    .wd-ox-num--last { border-bottom: 0; }

    .wd-ox-methodology { padding-top: 88px; padding-bottom: 88px; }
    .wd-ox-closing__inner { padding: 72px 32px 56px; }
}