/* ==========================================================================
   南诺方邦建站 nnfb.cn — 案例详情页「项目档案卷宗」专属样式
   适用页面：case-show7.html ~ case-show12.html
   依赖：css/base.css（设计变量 / .reveal 动效 / .btn 通用按钮）
         css/inner.css（.page-hero / .crumb 内页骨架）
   本文件自包含案例详情页全部版式，不与其它页面家族共享
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 页头横幅补充（案例档案标签行）
   -------------------------------------------------------------------------- */
.case-hero-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}
.case-hero-tags span {
    display: inline-flex;
    align-items: center;
    padding: 7px 18px;
    background: var(--milk);
    border: 1px dashed var(--butter-deep);
    border-radius: 999px;
    font-size: 12.5px;
    letter-spacing: .12em;
    color: var(--ink-body);
}
.case-hero-tags span:first-child {
    border-color: var(--pink-deep);
    color: var(--pink-deep);
}

/* --------------------------------------------------------------------------
   2. 项目档案卷宗（速览表 + 大图横幅）
   -------------------------------------------------------------------------- */
.dossier {
    position: relative;
    background: var(--milk);
    border: 1px solid var(--line);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow);
    padding: 44px 48px 48px;
}
/* 内圈虚线卷宗框 */
.dossier::before {
    content: "";
    position: absolute;
    inset: 11px;
    border: 1.5px dashed var(--butter);
    border-radius: calc(var(--r-lg) - 9px);
    pointer-events: none;
}
/* 左侧装订孔 */
.dossier::after {
    content: "";
    position: absolute;
    left: 21px;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 148px;
    background-image: radial-gradient(circle at 7px 7px, #F2E5CF 4.5px, transparent 5.5px);
    background-size: 14px 52px;
    background-repeat: repeat-y;
}
.dossier-head,
.dossier-body { position: relative; z-index: 1; }

.dossier-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 28px;
    padding-bottom: 26px;
    margin-bottom: 32px;
    border-bottom: 1px dashed var(--line);
}
.dossier-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12.5px;
    letter-spacing: .32em;
    color: var(--pink-deep);
    margin-bottom: 12px;
}
.dossier-kicker::before {
    content: "";
    width: 26px;
    height: 2px;
    background: var(--butter);
    border-radius: 2px;
}
.dossier-title { font-size: clamp(22px, 2.6vw, 30px); }
.dossier-meta {
    display: flex;
    align-items: center;
    gap: 22px;
    flex-shrink: 0;
}
.dossier-no {
    text-align: right;
    font-family: var(--serif);
    font-size: 13px;
    line-height: 1.7;
    letter-spacing: .1em;
    color: var(--ink-mute);
}
.dossier-no strong {
    display: block;
    font-size: 14px;
    color: var(--butter-deep);
    letter-spacing: .16em;
}
.dossier-stamp {
    width: 86px;
    height: 86px;
    border: 2px solid rgba(201, 110, 126, .7);
    border-radius: 50%;
    background: rgba(251, 221, 226, .28);
    color: var(--pink-deep);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    transform: rotate(10deg);
    flex-shrink: 0;
}
.dossier-stamp i:first-child {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .22em;
    margin-left: .22em;
}
.dossier-stamp i:last-child {
    font-size: 9px;
    letter-spacing: .28em;
    margin-left: .28em;
    opacity: .8;
}

/* 项目速览表 */
.dossier-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    overflow: hidden;
    font-size: 14.5px;
}
.dossier-table caption {
    caption-side: top;
    text-align: left;
    padding: 15px 22px 12px;
    font-size: 12px;
    letter-spacing: .3em;
    color: var(--ink-mute);
    border-bottom: 1px dashed var(--line);
    background: var(--milk);
}
.dossier-table th {
    text-align: left;
    font-weight: 600;
    color: var(--ink-mute);
    letter-spacing: .14em;
    white-space: nowrap;
    padding: 14px 18px 14px 22px;
    width: 118px;
    border-bottom: 1px dashed var(--line);
    border-right: 1px dashed var(--line);
    background: rgba(250, 231, 191, .35);
}
.dossier-table td {
    color: var(--ink);
    font-weight: 600;
    padding: 14px 20px;
    border-bottom: 1px dashed var(--line);
    border-right: 1px dashed var(--line);
}
.dossier-table tr:last-child th,
.dossier-table tr:last-child td { border-bottom: 0; }
.dossier-table th:last-child,
.dossier-table td:last-child { border-right: 0; }

/* 大图横幅（胶带贴角） */
.case-banner {
    margin-top: 36px;
    position: relative;
    padding: 0 14px;
}
.case-banner img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: var(--r-md);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
}
.case-banner::before,
.case-banner::after {
    content: "";
    position: absolute;
    top: -11px;
    width: 92px;
    height: 26px;
    background: rgba(242, 192, 99, .55);
    border-left: 1px dashed rgba(201, 134, 43, .35);
    border-right: 1px dashed rgba(201, 134, 43, .35);
    z-index: 2;
}
.case-banner::before { left: 24px; transform: rotate(-5deg); }
.case-banner::after { right: 24px; transform: rotate(4deg); }
.case-banner figcaption {
    margin-top: 14px;
    font-size: 13px;
    color: var(--ink-mute);
    letter-spacing: .06em;
    display: flex;
    align-items: center;
    gap: 10px;
}
.case-banner figcaption::before {
    content: "";
    width: 22px;
    height: 1.5px;
    background: var(--butter-deep);
    flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   3. 叙事区块（问题 / 做法 / 成果 / 图集 / 客户原话）
   -------------------------------------------------------------------------- */
.case-sec { margin-top: 78px; }
.case-sec-head {
    display: flex;
    align-items: center;
    gap: 22px;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line);
}
.case-sec-tab {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    background: var(--butter-soft);
    border: 1px solid var(--butter);
    border-radius: 14px 14px 14px 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--serif);
    font-size: 21px;
    font-weight: 700;
    color: var(--butter-deep);
    transform: rotate(-4deg);
    box-shadow: var(--shadow-sm);
}
.case-sec.alt .case-sec-tab {
    background: var(--pink-soft);
    border-color: var(--pink);
    color: var(--pink-deep);
    border-radius: 14px 14px 4px 14px;
    transform: rotate(3deg);
}
.case-sec-kicker {
    font-size: 12px;
    letter-spacing: .3em;
    color: var(--pink-deep);
    margin-bottom: 6px;
}
.case-sec-head h3 { font-size: clamp(21px, 2.4vw, 27px); }

/* 问题叙事 */
.case-story {
    background: var(--milk);
    border: 1px solid var(--line);
    border-left: 4px solid var(--butter);
    border-radius: var(--r-md);
    box-shadow: var(--shadow-sm);
    padding: 34px 40px;
    font-size: 15.5px;
}
.case-story p { margin-bottom: 18px; }
.case-story p:last-child { margin-bottom: 0; }
.case-story strong { color: var(--butter-deep); }

/* 我们做了什么 */
.dolist {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}
.dolist-item {
    position: relative;
    background: var(--milk);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    padding: 28px 30px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.dolist-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--butter);
}
.dolist-icon {
    width: 54px;
    height: 54px;
    flex-shrink: 0;
    border-radius: 16px;
    background: var(--butter-soft);
    border: 1px dashed var(--butter-deep);
    display: flex;
    align-items: center;
    justify-content: center;
}
.dolist-item:nth-child(even) .dolist-icon {
    background: var(--pink-soft);
    border-color: var(--pink-deep);
}
.dolist-item h4 {
    font-size: 16.5px;
    margin-bottom: 8px;
    letter-spacing: .05em;
}
.dolist-item p {
    font-size: 14.5px;
    line-height: 1.95;
    color: var(--ink-body);
}
.dolist-mark {
    position: absolute;
    top: 16px;
    right: 18px;
    font-family: var(--serif);
    font-size: 15px;
    font-weight: 700;
    color: var(--line);
    letter-spacing: .05em;
    transition: color .35s ease;
}
.dolist-item:hover .dolist-mark { color: var(--butter); }

/* 成果三大数字卡 */
.result-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.result-card {
    background: linear-gradient(165deg, var(--milk) 40%, #FFF4E3 100%);
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    box-shadow: var(--shadow-sm);
    padding: 36px 24px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.result-card::before {
    content: "";
    display: block;
    width: 36px;
    height: 3px;
    margin: 0 auto 20px;
    background: var(--butter);
    border-radius: 2px;
}
.result-card:nth-child(2)::before { background: var(--pink); }
.result-card strong {
    display: flex;
    align-items: baseline;
    justify-content: center;
    font-family: var(--serif);
    font-size: clamp(42px, 4.6vw, 56px);
    font-weight: 700;
    color: var(--butter-deep);
    line-height: 1.05;
}
.result-card:nth-child(2) strong { color: var(--pink-deep); }
.result-card strong i {
    font-size: 22px;
    margin: 0 3px;
    font-weight: 700;
}
.result-card > span {
    display: block;
    margin-top: 14px;
    font-size: 15.5px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: .1em;
}
.result-card > em {
    display: block;
    margin-top: 8px;
    font-size: 12.5px;
    color: var(--ink-mute);
    letter-spacing: .05em;
}

/* 图集 */
.case-gallery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 26px;
}
.case-gallery figure { position: relative; }
.case-gallery img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--r-md);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: transform .4s ease, box-shadow .4s ease;
}
.case-gallery figure:hover img {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}
.case-gallery figcaption {
    margin-top: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--ink-mute);
    letter-spacing: .05em;
}
.case-gallery .fig-no {
    flex-shrink: 0;
    font-family: var(--serif);
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: .12em;
    color: var(--butter-deep);
    border: 1px dashed var(--butter-deep);
    border-radius: 999px;
    padding: 2px 10px;
}
.case-gallery figure:nth-child(2) .fig-no {
    color: var(--pink-deep);
    border-color: var(--pink-deep);
}

/* 客户评价引言卡 */
.case-quote {
    position: relative;
    background: linear-gradient(135deg, var(--butter-soft) 0%, var(--pink-soft) 100%);
    border-radius: var(--r-lg);
    box-shadow: var(--shadow-sm);
    padding: 54px 56px 44px;
}
.case-quote::before {
    content: "\201C";
    position: absolute;
    top: 4px;
    left: 30px;
    font-family: Georgia, serif;
    font-size: 118px;
    line-height: 1;
    color: rgba(201, 110, 126, .35);
}
.case-quote p {
    position: relative;
    font-size: 16.5px;
    line-height: 2.15;
    color: var(--ink);
    max-width: 920px;
}
.case-quote footer {
    margin-top: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
}
.case-quote footer::before {
    content: "";
    width: 34px;
    height: 1.5px;
    background: var(--pink-deep);
    flex-shrink: 0;
}
.case-quote-who strong {
    display: block;
    font-size: 16px;
    letter-spacing: .08em;
}
.case-quote-who em {
    display: block;
    font-size: 13px;
    color: var(--ink-mute);
    margin-top: 2px;
}

/* 下一个案例大链接卡 */
.case-next {
    margin-top: 84px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    background: var(--milk);
    border: 1.5px dashed var(--butter-deep);
    border-radius: var(--r-lg);
    padding: 38px 46px;
    transition: transform .35s ease, box-shadow .35s ease, background .35s ease;
}
.case-next:hover {
    transform: translateY(-3px);
    background: #FFF9EC;
    box-shadow: var(--shadow);
}
.case-next-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    letter-spacing: .3em;
    color: var(--pink-deep);
    margin-bottom: 12px;
}
.case-next-label::before {
    content: "";
    width: 24px;
    height: 2px;
    background: var(--butter);
}
.case-next h3 { font-size: clamp(20px, 2.4vw, 26px); }
.case-next h3 em { color: var(--butter-deep); }
.case-next p {
    margin-top: 8px;
    font-size: 14px;
    color: var(--ink-mute);
    letter-spacing: .04em;
}
.case-next-arrow {
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--butter) 0%, #EBAF54 100%);
    box-shadow: 0 12px 26px rgba(233, 172, 84, .38);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform .35s ease;
}
.case-next:hover .case-next-arrow { transform: translateX(8px); }

/* --------------------------------------------------------------------------
   4. 响应式
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
    .dossier { padding: 34px 26px 36px; }
    .dossier::after { display: none; }
    .dossier-head { flex-direction: column; }
    .dossier-meta { width: 100%; justify-content: space-between; }
    .dossier-no { text-align: left; }
    .dolist { grid-template-columns: 1fr; }
    .result-cards { grid-template-columns: 1fr; }
    .case-gallery { grid-template-columns: 1fr; }
    .case-story { padding: 26px 24px; }
    .case-quote { padding: 48px 30px 38px; }
    .case-next { flex-direction: column; align-items: flex-start; padding: 32px 30px; }
}

@media (max-width: 640px) {
    .case-sec { margin-top: 58px; }
    .case-sec-head { gap: 16px; }
    .case-sec-tab { width: 46px; height: 46px; font-size: 18px; }
    .case-banner { padding: 0 6px; }
    .case-banner::before,
    .case-banner::after { width: 64px; height: 20px; top: -8px; }
    .case-quote::before { font-size: 84px; left: 20px; }
    /* 速览表转纵向档案条目 */
    .dossier-table,
    .dossier-table tbody,
    .dossier-table tr,
    .dossier-table th,
    .dossier-table td {
        display: block;
        width: 100%;
    }
    .dossier-table th,
    .dossier-table td { border-right: 0; border-bottom: 0; }
    .dossier-table th { padding: 12px 16px 1px; background: transparent; }
    .dossier-table td { padding: 1px 16px 13px; border-bottom: 1px dashed var(--line); }
    .dossier-table tr:last-child td { border-bottom: 0; padding-bottom: 16px; }
}