/* ==========================================================================
   吴起县文化馆 · 方案一 · 黄土窑韵（陕北信天游 / 黄土高原 / 窑洞拱券）
   ========================================================================== */
:root {
  --loess: #B8874B;      /* 窑洞土黄 */
  --loess-deep: #8A5A2B; /* 深陶土 */
  --cinnabar: #C0482D;   /* 朱砂红 */
  --cinnabar-deep: #9E3420;
  --straw: #F4E9D8;      /* 麦秆米白 */
  --straw-2: #FBF6EC;    /* 亮米白 */
  --ink: #3A2C20;        /* 墨褐 */
  --ink-2: #6B5842;      /* 次墨褐 */
  --line: #E2D2B8;       /* 麦草线 */
  --cream: #F8F0E3;      /* 页底 */
  --font-display: "Noto Serif SC", "Source Han Serif SC", "STZhongsong", "SimSun", serif;
  --font-body: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
html.font-large { font-size: 118%; }
body { font-family: var(--font-body); color: var(--ink); background: var(--cream); line-height: 1.8; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { width: min(1200px, calc(100% - 36px)); margin: 0 auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 99; background: var(--cinnabar); color: #fff; padding: 10px 18px; border-radius: 6px; }
.skip:focus { left: 8px; }

/* ---------- 返回对比导航 ---------- */
.back-plans { position: fixed; left: 18px; bottom: 24px; z-index: 160; background: var(--ink); color: #fff; font-size: 13px; letter-spacing: 1px; padding: 10px 18px; border-radius: 999px; box-shadow: 0 8px 22px rgba(0,0,0,.28); border: 1px solid rgba(255,255,255,.22); transition: background .2s; }
.back-plans:hover { background: var(--cinnabar); }

/* ---------- Toast / BackTop ---------- */
.toast { position: fixed; left: 50%; bottom: 34px; transform: translate(-50%, 20px); background: var(--ink); color: var(--straw-2); padding: 12px 22px; border-radius: 8px; font-size: 14px; opacity: 0; pointer-events: none; transition: all .3s ease; z-index: 200; box-shadow: 0 10px 30px rgba(58,44,32,.3); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.back-top { position: fixed; right: 22px; bottom: 26px; width: 46px; height: 46px; border-radius: 50%; border: none; background: var(--cinnabar); color: #fff; font-size: 20px; opacity: 0; pointer-events: none; transform: translateY(10px); transition: all .25s ease; box-shadow: 0 6px 18px rgba(160,67,43,.4); z-index: 150; }
.back-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-top:hover { background: var(--cinnabar-deep); }

/* ---------- 顶栏 ---------- */
.topbar { background: var(--loess-deep); color: #F4E6CD; font-size: 13px; }
.topbar-in { display: flex; justify-content: space-between; align-items: center; height: 34px; gap: 14px; }
.topbar-links { display: flex; align-items: center; gap: 8px; }
.topbar-links .sep { opacity: .4; }
.tb-link { color: inherit; background: none; border: none; font-size: 13px; padding: 2px 2px; }
.tb-link:hover { color: #fff; text-decoration: underline; }

/* ---------- 页眉 · 窑洞拱券 ---------- */
.masthead { background: linear-gradient(160deg, #9A6B37 0%, #8A5A2B 45%, #7A4E24 100%); color: var(--straw-2); position: relative; overflow: hidden; padding: 22px 0 26px; }
.mast-hill { position: absolute; right: -6%; bottom: -44px; width: 60%; height: 180px; background: radial-gradient(ellipse at 50% 120%, rgba(58,44,32,.5), transparent 70%); }
.mast-in { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; position: relative; }
.mast-brand { display: flex; align-items: center; gap: 14px; }
.mast-arch { position: relative; width: 64px; height: 52px; background: linear-gradient(180deg, #B8874B, #8A5A2B); border-radius: 50% 50% 0 0 / 60% 60% 0 0; box-shadow: inset 0 0 0 3px rgba(244,233,216,.25), 0 4px 10px rgba(0,0,0,.2); display: flex; align-items: flex-end; justify-content: center; }
.arch-doors { display: flex; gap: 4px; padding-bottom: 6px; }
.arch-doors i { width: 13px; height: 20px; background: #3A2C20; border-radius: 9px 9px 0 0; }
.arch-doors i:first-child, .arch-doors i:last-child { background: #2E231A; }
.mast-title { display: block; font-family: var(--font-display); font-size: 28px; letter-spacing: 2px; font-weight: 700; }
.mast-title em { font-style: normal; color: #FFD9A0; }
.mast-sub { display: block; font-size: 11px; letter-spacing: .24em; color: rgba(251,246,236,.7); margin-top: 2px; }
.mast-tools { display: flex; align-items: center; gap: 12px; }
.mast-search { display: flex; background: rgba(251,246,236,.14); border: 1px solid rgba(251,246,236,.3); border-radius: 999px; overflow: hidden; }
.mast-search input { background: transparent; border: none; outline: none; color: var(--straw-2); padding: 9px 16px; font-size: 14px; width: 230px; }
.mast-search input::placeholder { color: rgba(251,246,236,.65); }
.mast-search button { background: var(--cinnabar); color: #fff; border: none; padding: 9px 18px; font-size: 14px; }
.mast-search button:hover { background: var(--cinnabar-deep); }
.mast-band { margin-top: 18px; text-align: center; border-top: 1px solid rgba(251,246,236,.22); padding-top: 10px; position: relative; }
.band-wheat { font-family: var(--font-display); font-size: 13px; letter-spacing: .5em; color: rgba(255,217,160,.85); }

/* ---------- 主导航 ---------- */
.mainnav { background: var(--cinnabar); box-shadow: 0 4px 12px rgba(58,44,32,.18); position: sticky; top: 0; z-index: 100; }
.nav-in { display: flex; align-items: stretch; }
.nav-toggle { display: none; background: none; border: none; color: #fff; padding: 14px 0; font-size: 15px; letter-spacing: 2px; align-items: center; gap: 8px; }
.bars i { display: block; width: 18px; height: 2px; background: #fff; margin: 3px 0; }
.nav-list { display: flex; }
.nav-list > li > a { display: block; color: #fff; padding: 15px 20px; font-size: 16px; letter-spacing: 2px; font-family: var(--font-display); transition: background .18s; }
.nav-list > li:hover > a, .nav-list > li.cur > a { background: var(--cinnabar-deep); }
.nav-list .caret { font-size: 10px; margin-left: 5px; }
.has-sub { position: relative; }
.nav-sub { position: absolute; top: 100%; left: 0; min-width: 200px; background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--cinnabar); box-shadow: 0 18px 40px rgba(58,44,32,.2); opacity: 0; visibility: hidden; transform: translateY(8px); transition: all .22s ease; z-index: 120; }
.has-sub:hover .nav-sub { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-sub a { display: block; padding: 11px 18px; color: var(--ink); font-size: 14px; border-bottom: 1px dashed var(--line); }
.nav-sub a:hover { background: var(--straw); color: var(--cinnabar); }

/* ---------- Btn ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 28px; border-radius: 6px; font-size: 16px; letter-spacing: 2px; font-family: var(--font-display); border: 1.5px solid transparent; transition: all .2s ease; }
.btn-main { background: var(--cinnabar); color: #fff; box-shadow: 0 6px 16px rgba(160,67,43,.35); }
.btn-main:hover { background: var(--cinnabar-deep); transform: translateY(-2px); }
.btn-ghost { border-color: currentColor; color: inherit; background: transparent; }
.btn-ghost:hover { background: rgba(255,255,255,.14); }

/* ---------- 通用 section 头 ---------- */
.section { padding: 60px 0 66px; }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 34px; border-bottom: 1px solid var(--line); padding-bottom: 18px; flex-wrap: wrap; }
.sec-no { font-family: var(--font-display); font-size: 18px; color: var(--cinnabar); border: 2px solid currentColor; width: 42px; height: 42px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; flex: none; }
.sec-head > div { margin-right: auto; }
.sec-head h2 { font-size: 28px; letter-spacing: 3px; font-family: var(--font-display); }
.sec-head h2 em { font-style: normal; color: var(--cinnabar); }
.sec-head > div p { color: var(--ink-2); font-size: 14px; margin-top: 2px; }
.sec-head.inverse .sec-no { color: #FFD9A0; }
.sec-more { color: var(--cinnabar); font-size: 14px; white-space: nowrap; }
.sec-more:hover { text-decoration: underline; }

/* ---------- Hero 窑洞门廊 ---------- */
.hero { position: relative; overflow: hidden; background: linear-gradient(180deg, #C89A5F 0%, #B8874B 30%, #9A6B37 100%); color: #fff; }
.hero::after { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,235,200,.18) 1px, transparent 1px); background-size: 20px 20px; opacity: .6; mask-image: linear-gradient(180deg, #000, transparent 90%); }
.hero-arch { position: absolute; right: 6%; bottom: 0; width: 460px; height: 300px; background: radial-gradient(ellipse 120% 100% at 50% 100%, #3A2C20 30%, transparent 74%); opacity: .35; }
.hero-wheat { position: absolute; top: 0; right: 0; bottom: 0; width: 46%; opacity: .5; pointer-events: none; }
.hero-wheat span { position: absolute; width: 3px; height: 130px; background: linear-gradient(#FFD9A0, transparent); top: 30px; }
.hero-wheat span:nth-child(1){ left: 8%; transform: rotate(6deg); }
.hero-wheat span:nth-child(2){ left: 26%; top: 12px; height: 150px; transform: rotate(-5deg); }
.hero-wheat span:nth-child(3){ left: 44%; top: 40px; height: 120px; transform: rotate(8deg); }
.hero-wheat span:nth-child(4){ left: 62%; top: 6px; height: 160px; transform: rotate(-8deg); }
.hero-wheat span:nth-child(5){ left: 79%; top: 30px; height: 130px; transform: rotate(5deg); }
.hero-wheat span:nth-child(6){ left: 92%; top: 20px; height: 140px; transform: rotate(-6deg); }
.hero-in { position: relative; padding: 74px 0 60px; max-width: 720px; }
.hero-eyebrow { display: inline-block; font-size: 13px; letter-spacing: .4em; color: #3A2C20; background: #FFD9A0; padding: 6px 16px; border-radius: 3px; margin-bottom: 22px; }
.hero h1 { font-family: var(--font-display); font-size: 52px; letter-spacing: 6px; line-height: 1.2; text-shadow: 0 3px 18px rgba(58,44,32,.35); }
.hero-lead { margin-top: 18px; font-size: 17px; line-height: 2; color: rgba(255,255,255,.93); max-width: 620px; }
.hero-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }
.hero-actions .btn-ghost { border-color: rgba(255,255,255,.85); }
.hero-stats { display: flex; gap: 34px; margin-top: 44px; padding-top: 26px; border-top: 1px dashed rgba(255,235,200,.4); flex-wrap: wrap; }
.stat b { font-family: var(--font-display); font-size: 34px; color: #FFD9A0; }
.stat span { display: block; font-size: 13px; color: rgba(255,255,255,.82); margin-top: 2px; }

/* ---------- 非遗区块 ---------- */
.section-feiyi { background: var(--straw-2); }
.feiyi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.fcard { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 24px; box-shadow: 0 8px 24px rgba(58,44,32,.07); border-top: 3px solid var(--cinnabar); display: flex; flex-direction: column; transition: transform .2s ease, box-shadow .2s ease; }
.fcard:hover { transform: translateY(-5px); box-shadow: 0 16px 34px rgba(58,44,32,.12); }
.fcard-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.f-badge { font-size: 12px; color: #fff; background: var(--loess-deep); padding: 3px 12px; border-radius: 999px; letter-spacing: 1px; }
.f-badge[data-level="national"], .fcard:first-child .f-badge { background: var(--cinnabar); }
.f-emoji { font-size: 34px; line-height: 1; }
.fcard h3 { font-family: var(--font-display); font-size: 20px; letter-spacing: 1px; margin-bottom: 8px; }
.fcard p { color: var(--ink-2); font-size: 14px; flex: 1; }
.f-link { display: inline-block; margin-top: 14px; color: var(--cinnabar); font-size: 14px; }
.f-link:hover { text-decoration: underline; }
.fcard-cta { background: linear-gradient(180deg, var(--loess-deep), #7A4E24); color: #FBF6EC; border: none; border-top: 3px solid var(--cinnabar); justify-content: center; }
.fcard-cta h3 { color: #FFD9A0; }
.fcard-cta p { color: rgba(251,246,236,.9); }
.fcard-cta .btn-main { margin-top: 16px; }

/* ---------- 文化馆区块 ---------- */
.section-culture { background: linear-gradient(160deg, #3A2C20, #2E231A); color: var(--straw-2); }
.section-culture .sec-head { border-bottom-color: rgba(226,210,184,.25); }
.section-culture .sec-head > div p { color: #B9A188; }
.section-culture .sec-more { color: #FFD9A0; }
.culture-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.ccard { background: rgba(251,246,236,.05); border: 1px solid rgba(226,210,184,.2); border-radius: 10px; padding: 26px 22px; transition: transform .2s, background .2s; }
.ccard:hover { background: rgba(251,246,236,.1); transform: translateY(-4px); }
.c-icon { font-size: 30px; display: block; margin-bottom: 12px; }
.ccard h3 { font-family: var(--font-display); font-size: 19px; color: #FFD9A0; letter-spacing: 1px; margin-bottom: 8px; }
.ccard p { font-size: 13.5px; color: #C9B49C; }

/* ---------- 活动预告 / 新闻 ---------- */
.section-info { background: var(--cream); }
.info-grid { display: grid; grid-template-columns: 1fr 1.35fr; gap: 26px; align-items: start; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 10px; box-shadow: 0 8px 24px rgba(58,44,32,.06); }
.card-head { display: flex; align-items: center; gap: 12px; padding: 18px 24px; border-bottom: 1px dashed var(--line); }
.card-head h3 { font-family: var(--font-display); font-size: 20px; letter-spacing: 2px; }
.card-tag { font-size: 11px; letter-spacing: 3px; color: var(--cinnabar); border: 1px solid currentColor; padding: 2px 10px; border-radius: 999px; }
.card-head .sec-more { margin-left: auto; font-size: 13px; }
.evt-list { padding: 10px 24px 20px; }
.evt-list li { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px dashed var(--line); align-items: center; }
.evt-list li:last-child { border-bottom: none; }
.evt-date { flex: none; width: 54px; height: 58px; background: var(--cinnabar); color: #fff; border-radius: 8px; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.evt-date b { font-size: 22px; font-family: var(--font-display); line-height: 1; }
.evt-date i { font-style: normal; font-size: 12px; opacity: .9; }
.evt-body h4 { font-size: 15px; line-height: 1.6; }
.evt-body h4 a:hover { color: var(--cinnabar); }
.evt-meta { font-size: 12.5px; color: var(--ink-2); margin-top: 3px; }
.news { padding-bottom: 8px; }
.news-tabs { display: flex; gap: 4px; padding: 14px 24px 0; }
.news-tabs button { border: none; background: transparent; padding: 8px 14px; font-size: 14px; color: var(--ink-2); border-bottom: 2px solid transparent; font-family: inherit; }
.news-tabs button[aria-selected="true"] { color: var(--cinnabar); border-bottom-color: var(--cinnabar); }
.news-panel { padding: 6px 24px 16px; }
.news-list li { display: flex; justify-content: space-between; gap: 12px; padding: 14px 0; border-bottom: 1px dashed var(--line); }
.news-list li:last-child { border-bottom: none; }
.news-list a { font-size: 14.5px; }
.news-list a:hover { color: var(--cinnabar); }
.news-list time { font-size: 12.5px; color: var(--ink-2); flex: none; }

/* ---------- 数字文化馆 ---------- */
.section-digital { background: var(--straw-2); }
.digital-max { max-width: 1060px; }
.digital-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; box-shadow: 0 12px 34px rgba(58,44,32,.09); }
.digital-text { padding: 44px 40px; }
.digital-text h2 { font-family: var(--font-display); font-size: 28px; letter-spacing: 3px; margin: 18px 0 12px; }
.digital-text h2 .sec-no { vertical-align: middle; }
.digital-text p { color: var(--ink-2); font-size: 15px; line-height: 2; }
.digital-entry { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.digital-entry .btn-ghost { border-color: var(--loess-deep); color: var(--loess-deep); }
.digital-screen { background: linear-gradient(160deg, #3A2C20, #2E231A); padding: 40px 34px; display: flex; align-items: center; justify-content: center; min-height: 320px; }
.screen-frame { width: 100%; background: #0F0A06; border: 1px solid rgba(251,246,236,.25); border-radius: 10px; overflow: hidden; box-shadow: 0 14px 40px rgba(0,0,0,.5); }
.screen-topbar { display: flex; align-items: center; gap: 6px; background: rgba(251,246,236,.12); padding: 9px 12px; font-size: 11.5px; color: #FFD9A0; letter-spacing: 1px; }
.screen-topbar i { width: 9px; height: 9px; border-radius: 50%; background: var(--cinnabar); }
.screen-topbar i:nth-child(2){ background: #D9B98A; }
.screen-topbar i:nth-child(3){ background: var(--loess-deep); }
.screen-topbar span { margin-left: 6px; }
.screen-body { padding: 20px 16px; }
.screen-title { color: #fff; font-family: var(--font-display); font-size: 17px; margin-bottom: 14px; }
.screen-thumbs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.screen-thumbs i { aspect-ratio: 1/1.1; background: linear-gradient(160deg, #B8874B, #6E471F); border-radius: 4px; }
.screen-thumbs i:nth-child(odd){ background: linear-gradient(160deg, #C0482D, #7A2E1C); }

/* ---------- 免费开放 ---------- */
.section-open { background: var(--cream); }
.open-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.ocard { background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--cinnabar); border-radius: 8px; padding: 20px; display: flex; gap: 14px; }
.o-clock { font-size: 26px; }
.ocard h4 { font-family: var(--font-display); font-size: 17px; margin-bottom: 6px; }
.ocard p { font-size: 13.5px; color: var(--ink-2); }

/* ---------- 留言 ---------- */
.section-contact { padding-top: 20px; background: var(--cream); }
.contact-box { background: linear-gradient(140deg, var(--cinnabar), var(--cinnabar-deep)); color: #fff; border-radius: 14px; padding: 40px; display: flex; justify-content: space-between; gap: 30px; align-items: center; box-shadow: 0 16px 40px rgba(160,67,43,.3); flex-wrap: wrap; position: relative; overflow: hidden; }
.contact-box::before { content: ""; position: absolute; right: -40px; bottom: -60px; width: 260px; height: 260px; border-radius: 50%; background: rgba(255,217,160,.14); }
.contact-text { max-width: 560px; position: relative; }
.contact-text h2 { font-family: var(--font-display); font-size: 26px; letter-spacing: 2px; }
.contact-text p { margin-top: 10px; color: rgba(255,255,255,.92); font-size: 14.5px; }
.contact-text .btn-ghost { margin-top: 18px; border-color: #fff; }
.contact-arts { text-align: right; position: relative; }
.big-art { display: block; font-size: 64px; font-family: Georgia, serif; color: #FFD9A0; line-height: 1; }
.contact-arts span:last-child { font-size: 15px; letter-spacing: 2px; color: #FFE9C6; font-family: var(--font-display); }

/* ---------- 页脚 ---------- */
.footer { background: #241A10; color: #C9B49C; margin-top: 60px; padding-top: 46px; }
.footer-in { display: flex; gap: 40px; flex-wrap: wrap; padding-bottom: 36px; }
.f-brand { display: flex; align-items: center; gap: 12px; min-width: 200px; }
.f-arch { display: flex; gap: 3px; align-items: flex-end; width: 40px; height: 34px; background: var(--loess-deep); border-radius: 50% 50% 0 0 / 60% 60% 0 0; padding: 6px 6px 4px; }
.f-arch i { width: 10px; height: 14px; background: #241A10; border-radius: 7px 7px 0 0; }
.f-brand strong { display: block; font-family: var(--font-display); font-size: 18px; letter-spacing: 2px; color: #FFD9A0; }
.f-brand small { font-size: 10px; letter-spacing: .18em; }
.f-links { display: flex; gap: 46px; flex-wrap: wrap; margin-left: auto; }
.f-col h5 { font-family: var(--font-display); color: #FFD9A0; font-size: 15px; margin-bottom: 12px; letter-spacing: 2px; }
.f-col a, .f-col p { display: block; font-size: 13.5px; color: #A9957E; margin-bottom: 8px; }
.f-col a:hover { color: #fff; }
.f-contact { max-width: 220px; }
.footer-bottom { border-top: 1px solid rgba(201,180,156,.18); padding: 16px 0; text-align: center; font-size: 12.5px; color: #806F5C; }
.footer-bottom p { margin: 3px 0; }

/* ---------- 子页面：页头条 ---------- */
.page-banner { background: linear-gradient(160deg, #9A6B37, #7A4E24); color: #FBF6EC; padding: 44px 0; position: relative; }
.page-banner .container { position: relative; }
.pb-eyebrow { font-size: 12px; letter-spacing: .4em; color: #FFD9A0; }
.page-banner h1 { font-family: var(--font-display); font-size: 34px; letter-spacing: 4px; margin: 10px 0 6px; }
.breadcrumb { font-size: 13px; color: rgba(251,246,236,.75); }

/* 国家级 特写 */
.heritage-box { display: grid; grid-template-columns: 1fr 1.2fr; gap: 34px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 34px; box-shadow: 0 12px 30px rgba(58,44,32,.08); }
.hb-visual { background: linear-gradient(160deg, #E8D5B6, #D9B98A); border-radius: 10px; min-height: 260px; display: flex; flex-direction: column; align-items: center; justify-content: center; position: relative; }
.hb-bowl { width: 200px; height: 120px; background: radial-gradient(ellipse at 50% 30%, #FBF6EC, #D9B98A 70%); border-radius: 50% 50% 30% 30%; position: relative; box-shadow: 0 10px 22px rgba(58,44,32,.2); }
.hb-noodle { position: absolute; left: 20%; width: 60%; height: 6px; background: #B8874B; border-radius: 3px; top: 42%; }
.hb-noodle::before, .hb-noodle::after { content: ""; position: absolute; background: #B8874B; height: 6px; border-radius: 3px; }
.hb-noodle::before { width: 70%; transform: rotate(-8deg); top: 14px; left: 4%; }
.hb-noodle::after { width: 64%; transform: rotate(9deg); top: -16px; left: 12%; }
.hb-steam { position: absolute; top: -34px; left: 50%; transform: translateX(-50%); width: 30px; height: 30px; border-top: 2px solid rgba(184,135,75,.5); border-radius: 50%; animation: steam 2.2s ease-in-out infinite; }
@keyframes steam { 0%,100% { opacity:.3; transform: translateX(-50%) translateY(0); } 50% { opacity:.9; transform: translateX(-50%) translateY(-6px); } }
.hb-label { margin-top: 26px; font-size: 13px; letter-spacing: 2px; color: var(--loess-deep); font-family: var(--font-display); }
.hb-text p { font-size: 15.5px; line-height: 2; }
.hb-feats { margin-top: 20px; }
.hb-feats li { padding: 10px 0; border-top: 1px dashed var(--line); font-size: 14px; color: var(--ink-2); }
.hb-feats b { color: var(--cinnabar); margin-right: 10px; font-family: var(--font-display); }

/* 项目全览 */
.section-projects { background: var(--straw-2); }
.proj-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.proj-card { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 22px; display: flex; flex-direction: column; gap: 6px; transition: transform .2s, box-shadow .2s; position: relative; }
.proj-card:hover { transform: translateY(-4px); box-shadow: 0 14px 28px rgba(58,44,32,.1); }
.p-emb { font-size: 30px; }
.proj-card h3 { font-family: var(--font-display); font-size: 18px; }
.proj-card p { font-size: 13px; color: var(--ink-2); }
.p-tag { align-self: flex-start; font-size: 11.5px; color: var(--cinnabar); border: 1px solid currentColor; padding: 2px 10px; border-radius: 999px; }

/* 指尖艺术 */
.section-craft { background: linear-gradient(160deg, #3A2C20, #2E231A); color: var(--straw-2); }
.section-craft .sec-head { border-bottom-color: rgba(226,210,184,.25); }
.section-craft .sec-head > div p { color: #B9A188; }
.craft-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.craft-card { background: rgba(251,246,236,.05); border: 1px solid rgba(226,210,184,.2); border-radius: 12px; padding: 26px; }
.craft-visual { height: 140px; border-radius: 8px; background: linear-gradient(160deg, color-mix(in srgb, var(--tint) 45%, #1a130c), color-mix(in srgb, var(--tint) 18%, #241a10)); margin-bottom: 16px; position: relative; overflow: hidden; }
.cv-dot { position: absolute; width: 14px; height: 14px; border-radius: 50%; background: var(--tint); }
.cv-dot:nth-child(1){ top: 22px; left: 26px; } .cv-dot:nth-child(2){ top: 60px; left: 64px; } .cv-dot:nth-child(3){ top: 34px; left: 104px; } .cv-dot:nth-child(4){ top: 76px; left: 140px; background:#fff; } .cv-dot:nth-child(5){ top: 40px; left: 180px; } .cv-dot:nth-child(6){ top: 90px; left: 220px; }
.cv-hole { position: absolute; width: 40px; height: 40px; border-radius: 50%; box-shadow: inset 0 0 0 8px var(--tint); }
.cv-hole:nth-child(1){ top: 30px; left: 40px; } .cv-hole:nth-child(2){ top: 46px; left: 130px; } .cv-hole:nth-child(3){ top: 22px; left: 220px; }
.cv-stitch { position: absolute; width: 60px; height: 3px; background: var(--tint); border-radius: 2px; }
.cv-stitch:nth-child(1){ top: 40px; left: 30px; transform: rotate(12deg); } .cv-stitch:nth-child(2){ top: 74px; left: 90px; transform: rotate(-10deg); } .cv-stitch:nth-child(3){ top: 56px; left: 160px; transform: rotate(8deg); } .cv-stitch:nth-child(4){ top: 96px; left: 210px; transform: rotate(-14deg); }
.craft-card h3 { font-family: var(--font-display); font-size: 20px; color: #FFD9A0; margin-bottom: 8px; }
.craft-card p { font-size: 13.5px; color: #C9B49C; }

/* 保护时间线 */
.protect-timeline { border-left: 3px solid var(--cinnabar); margin-left: 12px; padding-left: 26px; display: flex; flex-direction: column; gap: 26px; }
.pt-item { position: relative; }
.pt-item::before { content: ""; position: absolute; left: -33px; top: 8px; width: 12px; height: 12px; border-radius: 50%; background: var(--cinnabar); box-shadow: 0 0 0 4px rgba(192,72,45,.2); }
.pt-year { display: inline-block; font-family: var(--font-display); font-size: 14px; color: var(--cinnabar); margin-bottom: 4px; }
.pt-item p { font-size: 15px; color: var(--ink-2); }

/* 民歌说书 */
.section-song { background: linear-gradient(160deg, #9A6B37, #7A4E24); color: #FBF6EC; }
.song-inner { display: flex; align-items: center; gap: 30px; flex-wrap: wrap; }
.song-note { font-size: 120px; color: rgba(255,217,160,.4); font-family: Georgia, serif; line-height: 1; }
.song-text h2 { font-family: var(--font-display); font-size: 30px; letter-spacing: 3px; margin: 16px 0 10px; }
.song-text p { color: rgba(251,246,236,.9); max-width: 580px; }
.song-text .btn { margin-top: 18px; }

/* ---------- 文化馆子页 ---------- */
.intro-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 34px; align-items: start; }
.intro-text p { font-size: 15px; margin-bottom: 14px; }
.intro-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 18px; }
.intro-facts li { background: var(--straw); border: 1px solid var(--line); border-radius: 8px; padding: 12px 16px; font-size: 13.5px; }
.intro-facts b { display: block; font-family: var(--font-display); color: var(--cinnabar); font-size: 13px; }
.intro-frame { position: relative; background: linear-gradient(160deg, var(--loess-deep), #6E471F); border-radius: 12px; min-height: 320px; display: flex; align-items: flex-end; overflow: hidden; }
.if-arch { position: absolute; inset: 0; background: radial-gradient(ellipse 130% 100% at 50% 120%, #3A2C20 30%, transparent 74%); }
.if-arch::after { content: "吴起县文化馆"; position: absolute; right: -20px; bottom: -8px; font-size: 90px; font-family: var(--font-display); color: rgba(255,217,160,.16); transform: rotate(-6deg); white-space: nowrap; }
.if-caption { position: relative; padding: 16px; margin: 12px; background: rgba(251,246,236,.12); backdrop-filter: blur(3px); border-radius: 8px; color: #FBF6EC; font-size: 13px; letter-spacing: 1px; }

.venue-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.vcard { background: var(--straw-2); border: 1px solid var(--line); border-radius: 10px; padding: 24px 20px; box-shadow: 0 6px 18px rgba(58,44,32,.06); }
.vcard span { font-size: 30px; display: block; margin-bottom: 10px; }
.vcard h3 { font-family: var(--font-display); font-size: 18px; margin-bottom: 6px; }
.vcard p { font-size: 13px; color: var(--ink-2); }

.section-open2 { background: var(--straw-2); }
.section-train { background: var(--cream); }
.train-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tcard { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 24px; position: relative; grid-column: auto; }
.t-no { position: absolute; top: 18px; right: 20px; font-family: var(--font-display); font-size: 34px; color: rgba(192,72,45,.16); }
.tcard h3 { font-family: var(--font-display); font-size: 19px; margin-bottom: 6px; }
.tcard p { font-size: 13.5px; color: var(--ink-2); margin-bottom: 16px; }
.t-btn { display: inline-block; font-size: 13px; color: var(--cinnabar); border: 1px solid currentColor; padding: 6px 18px; border-radius: 999px; }
.t-btn:hover { background: var(--cinnabar); color: #fff; }

.exh-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.exh-card { background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.exh-visual { height: 180px; background: linear-gradient(160deg, #C0482D, #7A2E1C); }
.exh-visual.v2 { background: linear-gradient(160deg, #B8874B, #6E471F); }
.exh-visual.v3 { background: linear-gradient(160deg, #8A5A2B, #3A2C20); }
.exh-card h3 { font-family: var(--font-display); font-size: 17px; padding: 16px 20px 4px; }
.exh-card p { font-size: 13px; color: var(--ink-2); padding: 0 20px 18px; }

.section-activities { background: var(--straw-2); }
.act-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.act-item { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 20px; display: flex; gap: 16px; align-items: center; }
.act-item time { flex: none; width: 52px; height: 52px; background: var(--cinnabar); color: #fff; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-family: var(--font-display); font-size: 22px; }
.act-item h3 { font-size: 15.5px; }
.act-item p { font-size: 12.5px; color: var(--ink-2); }

/* ---------- 留言表单页 ---------- */
.section-form { background: var(--cream); }
.form-wrap { display: grid; grid-template-columns: 1fr 1.4fr; gap: 34px; align-items: start; }
.form-intro h2 { font-family: var(--font-display); font-size: 26px; letter-spacing: 2px; margin-bottom: 12px; }
.form-intro > p { color: var(--ink-2); font-size: 15px; }
.form-contact { margin-top: 24px; }
.form-contact li { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.form-contact b { color: var(--cinnabar); font-family: var(--font-display); width: 52px; flex: none; }
.msg-form { background: #fff; border: 1px solid var(--line); border-radius: 12px; box-shadow: 0 12px 30px rgba(58,44,32,.08); padding: 30px; }
.msg-head { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px dashed var(--line); padding-bottom: 16px; margin-bottom: 22px; }
.msg-head h3 { font-family: var(--font-display); font-size: 20px; letter-spacing: 2px; }
.msg-head p { font-size: 12.5px; color: var(--ink-2); }
.req { color: var(--cinnabar); }
.form-item { margin-bottom: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-item label { display: block; font-size: 14px; margin-bottom: 7px; }
.form-item input, .form-item select, .form-item textarea { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; font-size: 14.5px; font-family: inherit; color: var(--ink); background: #fff; transition: border-color .2s; }
.form-item input:focus, .form-item textarea:focus, .form-item select:focus { outline: none; border-color: var(--cinnabar); box-shadow: 0 0 0 3px rgba(192,72,45,.12); }
.form-item.invalid input, .form-item.invalid textarea { border-color: var(--cinnabar); }
.err { display: block; color: var(--cinnabar); font-size: 12px; margin-top: 5px; min-height: 16px; }
.captcha-row { display: flex; gap: 12px; align-items: center; }
.captcha-row input { flex: 1; }
.captcha { font-family: var(--font-display); background: var(--straw); border: 1px dashed var(--loess-deep); border-radius: 8px; padding: 9px 14px; font-size: 22px; letter-spacing: 4px; user-select: none; cursor: pointer; }
.captcha .l1 { transform: rotate(-8deg); display: inline-block; color: var(--cinnabar) !important; }
.captcha .l2 { transform: rotate(6deg); display: inline-block; color: var(--loess-deep); }
.captcha .l3 { transform: rotate(-5deg); display: inline-block; color: var(--ink); }
.captcha .l4 { transform: rotate(9deg); display: inline-block; color: var(--cinnabar-deep); }
.msg-form .submit { width: 100%; margin-top: 4px; }
.msg-ok { display: none; text-align: center; padding: 34px 20px; }
.msg-ok.show { display: block; }
.msg-ok p { font-family: var(--font-display); font-size: 24px; color: var(--cinnabar); margin-bottom: 10px; }
.msg-ok span { color: var(--ink-2); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .feiyi-grid { grid-template-columns: repeat(2, 1fr); }
  .culture-grid { grid-template-columns: repeat(2, 1fr); }
  .open-grid { grid-template-columns: repeat(2, 1fr); }
  .info-grid { grid-template-columns: 1fr; }
  .digital-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 42px; }
  .nav-list > li > a { padding: 15px 14px; font-size: 15px; }
  .heritage-box { grid-template-columns: 1fr; }
  .proj-grid { grid-template-columns: repeat(2, 1fr); }
  .craft-grid { grid-template-columns: repeat(2, 1fr); }
  .intro-grid { grid-template-columns: 1fr; }
  .venue-grid { grid-template-columns: repeat(2, 1fr); }
  .train-grid { grid-template-columns: repeat(2, 1fr); }
  .exh-grid { grid-template-columns: repeat(2, 1fr); }
  .act-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .topbar-welcome { display: none; }
  .mast-tools { width: 100%; }
  .mast-search { width: 100%; }
  .mast-search input { flex: 1; width: auto; }
  .nav-toggle { display: inline-flex; }
  .nav-list { display: none; flex-direction: column; width: 100%; }
  .nav-list.open { display: flex; }
  .nav-sub { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: none; background: var(--cinnabar-deep); }
  .nav-sub a { color: #fff; border-bottom-color: rgba(255,255,255,.2); padding-left: 26px; }
  .feiyi-grid, .culture-grid, .open-grid, .proj-grid, .craft-grid, .venue-grid, .train-grid, .exh-grid { grid-template-columns: 1fr; }
  .form-wrap { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .digital-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 34px; letter-spacing: 3px; }
  .hero-stats { gap: 20px; }
  .sec-head h2 { font-size: 23px; }
  .contact-box { padding: 30px 22px; }
  .digital-text { padding: 30px 22px; }
  .f-links { margin-left: 0; }
}
/* ---------- 无障碍：减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}