/* instant-prints · 拍立得 —— 软木板上钉着的拍立得相纸：白边宽下巴写标题、手写日期、按分类着色的图钉贯穿全站 */
:root {
    --ip-cork: #b98b5e;
    --ip-cork-dark: #5b3f25;
    --ip-print: #ffffff;
    --ip-ink: #231c15;
    --ip-soft: #5d5246;
    --ip-rule: #e7ddd2;
    --ip-link: #1f5fa8;
    --ip-display: Epilogue, "Segoe UI", system-ui, sans-serif;
    --ip-body: "Schibsted Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
    --ip-hand: Caveat, "Comic Sans MS", cursive;
    --pagination-accent: #1f5fa8;
}

/* 图钉颜色：按分类 slug 取模 */
.ip-pin-0 { --ip-pin: #d7263d; }
.ip-pin-1 { --ip-pin: #1f5fa8; }
.ip-pin-2 { --ip-pin: #f2b705; }
.ip-pin-3 { --ip-pin: #2a8a55; }
.ip-pin-4 { --ip-pin: #7b3fa0; }

body.theme-instant {
    margin: 0; color: var(--ip-ink); font-family: var(--ip-body); font-size: 16px;
    background-color: var(--ip-cork);
    background-image: radial-gradient(rgba(91, 63, 37, .35) 1px, transparent 1.5px), radial-gradient(rgba(255, 236, 210, .25) 1px, transparent 1.5px);
    background-size: 9px 9px, 13px 13px;
    background-position: 0 0, 4px 6px;
}
:where(.theme-instant) a { color: inherit; text-decoration: none; }
.theme-instant :focus-visible { outline: 3px solid var(--ip-link); outline-offset: 3px; }
.ip-skip { position: absolute; left: -9999px; }
.ip-skip:focus { left: 12px; top: 12px; z-index: 50; padding: 10px 14px; background: var(--ip-print); font-weight: 700; }
.ip-board:focus { outline: none; }

/* 图钉：圆头 + 高光 */
.ip-pin { position: absolute; left: 50%; top: -9px; z-index: 2; width: 20px; height: 20px; margin-left: -10px; border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, rgba(255, 255, 255, .7) 0 3px, transparent 4px), var(--ip-pin, #d7263d);
    box-shadow: 0 3px 4px rgba(35, 28, 21, .45); }
.ip-hand { font-family: var(--ip-hand); font-weight: 600; font-size: 1.2rem; line-height: 1; white-space: nowrap; }
.ip-topic { min-width: 0; max-width: 100%; padding: 2px 8px; border-left: 4px solid var(--ip-pin, #d7263d); background: #f6f1ea;
    font-size: .76rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---------- 顶栏：白色相纸条 ---------- */
.ip-top { background: var(--ip-print); border-bottom: 6px solid var(--ip-cork-dark); }
.ip-top-inner { display: flex; align-items: center; gap: 24px; max-width: 1320px; margin: 0 auto; padding: 12px 24px; }
.ip-brand { display: inline-flex; align-items: center; gap: 12px; margin-right: auto; min-width: 0; }
.ip-brand-print { flex: none; display: grid; width: 30px; height: 36px; padding: 4px 4px 10px; box-sizing: border-box; background: #fff; border: 2px solid var(--ip-ink); border-radius: 2px; }
.ip-brand-print span { background: linear-gradient(135deg, #1f5fa8, #d7263d); }
.ip-brand-name { min-width: 0; font-family: var(--ip-display); font-weight: 800; font-size: 1.5rem; letter-spacing: -.02em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ip-nav { display: flex; gap: 6px; }
.ip-nav a { padding: 8px 12px; font-weight: 500; border-bottom: 3px solid transparent; }
.ip-nav a:hover { border-bottom-color: var(--ip-rule); }
.ip-nav a.is-on { border-bottom-color: #d7263d; font-weight: 700; }
.ip-menu-toggle { display: none; color: inherit; }

/* ---------- 版心 ---------- */
.ip-board { min-height: 60vh; padding-bottom: 40px; }
.ip-board-inner { max-width: 1320px; margin: 0 auto; padding: 24px 24px 0; }
.ip-crumb { display: flex; flex-wrap: wrap; gap: 8px; width: fit-content; max-width: 100%; box-sizing: border-box; margin: 0 0 8px; padding: 6px 12px; background: var(--ip-print); font-size: .9rem; color: var(--ip-soft); }
.ip-crumb a { color: var(--ip-link); font-weight: 700; }
.ip-empty { margin: 32px 0; padding: 24px; background: var(--ip-print); text-align: center; list-style: none; }
.ip-pager { margin-top: 32px; padding: 8px 12px; background: var(--ip-print); }
.ip-page-title { display: inline-block; margin: 8px 0 24px; padding: 6px 16px; background: var(--ip-print); font-family: var(--ip-display); font-weight: 800; font-size: clamp(1.8rem, 3.4vw, 2.5rem); }

.ip-set { margin-top: 36px; }
.ip-set-label { display: inline-block; margin: 0 0 22px; padding: 4px 14px; background: var(--ip-cork-dark); color: #fff8ef; font-family: var(--ip-hand); font-weight: 600; font-size: 1.6rem; line-height: 1.2; }

/* ---------- 相纸卡：白边 + 宽下巴 ---------- */
.ip-grid { display: grid; gap: 32px 24px; }
.ip-grid-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.ip-grid-four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.ip-print { position: relative; min-width: 0; }
.ip-print-link { position: relative; display: grid; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 1fr; height: 100%; box-sizing: border-box; padding: 12px 12px 0; background: var(--ip-print); box-shadow: 0 6px 14px rgba(35, 28, 21, .35); }
.ip-print-link:hover { box-shadow: 0 10px 22px rgba(35, 28, 21, .5); }
.ip-print-photo img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; background: var(--ip-rule); }
.ip-chin { display: grid; grid-template-columns: minmax(0, 1fr); align-content: start; gap: 10px; padding: 14px 4px 18px; }
.ip-chin-title { font-family: var(--ip-display); font-weight: 600; font-size: 1.12rem; line-height: 1.3; }
.ip-print-link:hover .ip-chin-title { text-decoration: underline; text-decoration-color: var(--ip-pin); text-decoration-thickness: 2px; }
.ip-chin-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 12px; min-width: 0; color: var(--ip-soft); }

/* ---------- 首页头条：宽幅相纸 ---------- */
.ip-wide { position: relative; }
.ip-wide-link { position: relative; display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); gap: 0 24px; padding: 16px; background: var(--ip-print); box-shadow: 0 8px 20px rgba(35, 28, 21, .4); }
.ip-wide-photo img { display: block; width: 100%; height: 100%; min-height: 320px; aspect-ratio: 16 / 9; object-fit: cover; background: var(--ip-rule); }
.ip-wide-chin { display: grid; grid-template-columns: minmax(0, 1fr); align-content: center; gap: 14px; padding: 12px 8px; }
.ip-wide-title { font-family: var(--ip-display); font-weight: 800; font-size: clamp(1.7rem, 2.6vw, 2.4rem); line-height: 1.12; letter-spacing: -.02em; }
.ip-wide-link:hover .ip-wide-title { text-decoration: underline; text-decoration-color: var(--ip-pin); text-decoration-thickness: 3px; }
.ip-wide-excerpt { color: var(--ip-soft); line-height: 1.6; }

/* ---------- 分类页：左相纸、右钉住的说明卡 ---------- */
.ip-cat-list { display: grid; grid-template-columns: minmax(0, 1fr); gap: 28px; max-width: 980px; margin: 0; padding: 0; list-style: none; }
.ip-snap { min-width: 0; }
.ip-snap-link { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 20px; align-items: start; }
.ip-snap-print { display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; padding: 10px 10px 12px; background: var(--ip-print); box-shadow: 0 5px 12px rgba(35, 28, 21, .35); text-align: center; color: var(--ip-soft); }
.ip-snap-print img { display: block; width: 100%; height: auto; aspect-ratio: 1 / 1; object-fit: cover; background: var(--ip-rule); }
.ip-snap-card { position: relative; display: grid; grid-template-columns: minmax(0, 1fr); gap: 8px; margin-top: 18px; padding: 20px 22px; background: var(--ip-print); box-shadow: 0 4px 10px rgba(35, 28, 21, .3); }
.ip-snap-title { font-family: var(--ip-display); font-weight: 600; font-size: 1.3rem; line-height: 1.25; }
.ip-snap-link:hover .ip-snap-title { text-decoration: underline; text-decoration-color: var(--ip-pin); }
.ip-snap-excerpt { color: var(--ip-soft); line-height: 1.55; }
.ip-snap-date { display: none; font-size: .82rem; color: var(--ip-soft); }
.ip-cat-list > .ip-ad { list-style: none; }
.ip-cat-list > .ip-ad:not(:has(.ad)) { display: none; }

/* ---------- 分类索引：空白彩色相纸 ---------- */
.ip-albums { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px 24px; margin: 0; padding: 0; list-style: none; }
.ip-album { position: relative; min-width: 0; }
.ip-album a { position: relative; display: grid; grid-template-columns: minmax(0, 1fr); height: 100%; box-sizing: border-box; padding: 12px 12px 0; background: var(--ip-print); box-shadow: 0 6px 14px rgba(35, 28, 21, .35); }
.ip-album-blank { display: grid; place-items: center; aspect-ratio: 4 / 3; background: var(--ip-pin); color: #fff; font-family: var(--ip-display); font-weight: 800; font-size: 3rem; }
.ip-pin-2 .ip-album-blank { color: var(--ip-ink); }
.ip-album-chin { display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px; padding: 12px 4px 18px; }
.ip-album-name { font-family: var(--ip-display); font-weight: 800; font-size: 1.2rem; }
.ip-album-desc { color: var(--ip-soft); font-size: .92rem; line-height: 1.5; }

/* ---------- 广告壳：无广告时塌陷 ---------- */
.ip-ad:has(.ad) { margin: 24px 0; }
.ip-ad:has(.ad) .ad { min-height: 250px; margin: 0 !important; }

/* ---------- 页脚：绳子上夹着的小相纸 ---------- */
.ip-foot { margin-top: 32px; padding: 0 24px 96px; background: var(--ip-cork-dark); color: #fff8ef; }
.ip-foot-inner { position: relative; max-width: 1320px; margin: 0 auto; padding-top: 30px; }
.ip-foot-string { position: absolute; left: 0; right: 0; top: 34px; height: 2px; background: #e9d8bf; }
.ip-foot-prints { position: relative; display: flex; flex-wrap: wrap; gap: 20px 18px; margin: 0; padding: 0; list-style: none; }
.ip-foot-prints a { position: relative; display: inline-block; margin-top: 10px; padding: 14px 14px 22px; background: var(--ip-print); color: var(--ip-ink); font-weight: 700; font-size: .92rem; box-shadow: 0 4px 8px rgba(0, 0, 0, .35); }
.ip-foot-prints a:hover { text-decoration: underline; }
.ip-peg { position: absolute; left: 50%; top: -12px; width: 10px; height: 22px; margin-left: -5px; background: #c79a62; border: 1px solid #7a5530; border-radius: 2px; }
.ip-foot-note { margin: 28px 0 0; font-size: .92rem; }
.ip-foot-hand { font-family: var(--ip-hand); font-weight: 600; font-size: 1.4rem; margin-right: 6px; }

/* 文字容器显式写列宽、标签允许收缩：超长标题或分类名不撑宽隐式列 */
.ip-chin-meta > *, .ip-topic { min-width: 0; }

/* ---------- 共享页面：白色相纸面板 ---------- */
.theme-instant .site-menu, .theme-instant .site-search, .theme-instant .static-page, .theme-instant .theme-error { --menu-accent: #1f5fa8; background: var(--ip-print); box-shadow: 0 6px 14px rgba(35, 28, 21, .3); }

/* ---------- 断点 ---------- */
@media (min-width: 1600px) {
    .ip-board-inner, .ip-top-inner, .ip-foot-inner { max-width: 1540px; }
    .ip-grid-four { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .ip-albums { grid-template-columns: repeat(5, minmax(0, 1fr)); }
}

@media (max-width: 1023px) {
    .ip-wide-link { grid-template-columns: minmax(0, 1fr); }
    .ip-wide-photo img { min-height: 0; aspect-ratio: 24 / 9; }
    .ip-grid-four { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .ip-albums { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .ip-snap-link { grid-template-columns: 180px minmax(0, 1fr); }
}

@media (max-width: 767px) {
    .ip-top { border-bottom-width: 4px; }
    .ip-top-inner { min-height: 52px; padding: 2px 12px; gap: 10px; }
    .ip-brand-print { width: 24px; height: 30px; padding: 3px 3px 8px; }
    .ip-brand-name { font-size: 1.2rem; }
    .ip-menu-toggle { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: #f6f1ea; }
    .ip-board-inner { padding: 14px 12px 0; }
    .ip-wide-link { padding: 10px; }
    .ip-wide-photo img { aspect-ratio: 16 / 9; }
    .ip-wide-chin { gap: 8px; padding: 10px 2px 4px; }
    .ip-wide-title { font-size: 1.4rem; }
    .ip-wide-excerpt { display: none; }
    .ip-set { margin-top: 26px; }
    .ip-set-label { margin-bottom: 16px; font-size: 1.35rem; }
    .ip-grid { gap: 18px; }
    .ip-grid-three, .ip-grid-four { grid-template-columns: minmax(0, 1fr); }
    .ip-print-link { grid-template-columns: 104px minmax(0, 1fr); grid-template-rows: auto; gap: 12px; padding: 8px; }
    .ip-print-photo img { height: 96px; aspect-ratio: auto; }
    .ip-chin { gap: 6px; padding: 2px 0; }
    .ip-chin-title { font-size: 1rem; }
    .ip-pin { width: 16px; height: 16px; margin-left: -8px; top: -7px; }
    .ip-cat-list { gap: 14px; }
    .ip-snap-link { grid-template-columns: 96px minmax(0, 1fr); gap: 0; background: var(--ip-print); box-shadow: 0 4px 10px rgba(35, 28, 21, .3); }
    .ip-snap-print { padding: 6px; box-shadow: none; }
    .ip-snap-print img { height: 84px; aspect-ratio: auto; }
    .ip-snap-print time { display: none; }
    .ip-snap-card { margin: 0; padding: 10px 12px; box-shadow: none; gap: 6px; }
    .ip-snap-card .ip-pin { display: none; }
    .ip-snap-title { font-size: 1rem; }
    .ip-snap-excerpt { display: none; }
    .ip-snap-date { display: block; }
    .ip-albums { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 14px; }
    .ip-album-blank { font-size: 2.2rem; }
    .ip-foot { padding: 0 16px 96px; }
}

/* 移动端：分类导航只在 /menu 出现，隐藏规则放在全局规则之后 */
@media (max-width: 767px) {
    .ip-nav { display: none; }
}