/* 观复活动策划 — 暖炭黑 + 鎏金，与现场照片同色调 */
:root {
  --bg: #0a0908;
  --bg-2: #100f0d;
  --panel: #16130f;
  --line: rgba(214, 190, 150, .13);
  --txt: #f0ece4;
  --txt-soft: #a69d8d;
  --gold: #c9a35c;
  --gold-bright: #ebcd94;
  --gold-deep: #97743a;
  --serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--sans); color: var(--txt); background: var(--bg); line-height: 1.75; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ---------- 顶栏 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 60;
  background: linear-gradient(to bottom, rgba(8, 7, 6, .9), rgba(8, 7, 6, .5) 65%, transparent);
  backdrop-filter: blur(10px); transition: .3s;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 78px; }
.nav-group { display: flex; align-items: center; gap: 30px; }
.nav-tel {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 18px; border: 1px solid rgba(201, 163, 92, .45);
  color: var(--gold-bright); font-size: 14.5px; letter-spacing: 2px; font-weight: 600;
  background: rgba(201, 163, 92, .07); transition: .25s; white-space: nowrap;
}
.nav-tel span { font-size: 13px; opacity: .85; }
.nav-tel:hover { background: rgba(201, 163, 92, .16); border-color: var(--gold); box-shadow: 0 0 22px rgba(201, 163, 92, .22); }
@media (max-width: 900px) { .nav-group { gap: 16px; } .nav-tel { padding: 6px 12px; font-size: 13px; letter-spacing: 1px; } }
.brand { display: flex; align-items: center; flex: 0 0 auto; }
.brand img { height: 42px; width: auto; display: block; flex: none; filter: drop-shadow(0 2px 18px rgba(255, 255, 255, .13)); transition: .25s; }
.brand:hover img { filter: drop-shadow(0 2px 22px rgba(235, 205, 148, .32)); }
.nav { display: flex; gap: 32px; font-size: 14.5px; letter-spacing: 1px; }
.nav a { color: rgba(240, 236, 228, .72); padding: 6px 0; position: relative; transition: .25s; }
.nav a::after { content: ""; position: absolute; left: 50%; bottom: 0; width: 0; height: 1px; background: var(--gold); box-shadow: 0 0 8px var(--gold); transition: .25s; transform: translateX(-50%); }
.nav a:hover { color: var(--gold-bright); }
.nav a:hover::after, .nav a.active::after { width: 100%; }
.nav a.active { color: var(--gold-bright); }
/* 移动端菜单按钮 */
.nav-toggle { display: none; width: 40px; height: 40px; padding: 0; background: none; border: 0; cursor: pointer; flex-direction: column; justify-content: center; gap: 5px; }
.nav-toggle i { display: block; width: 22px; height: 1.5px; margin: 0 auto; background: var(--gold-bright); transition: .25s; }
.site-header.open .nav-toggle i:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.site-header.open .nav-toggle i:nth-child(2) { opacity: 0; }
.site-header.open .nav-toggle i:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 780px) {
  .site-header .wrap { height: 64px; }
  .brand img { height: 32px; }
  .nav-toggle { display: flex; }
  .nav-group {
    position: fixed; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 6px 24px 24px;
    background: #0b0a09;
    border-top: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(0, 0, 0, .5);
    opacity: 0; visibility: hidden; transform: translateY(-10px);
    transition: .24s;
  }
  .site-header.open .nav-group { opacity: 1; visibility: visible; transform: none; }
  .nav { flex-direction: column; gap: 0; font-size: 15px; letter-spacing: 1.5px; }
  .nav a { padding: 14px 2px; border-bottom: 1px solid rgba(214, 190, 150, .09); }
  .nav a::after { display: none; }
  .nav-tel { margin-top: 18px; justify-content: center; padding: 11px 18px; font-size: 14.5px; }
}
@media (max-width: 400px) { .brand img { height: 28px; } }

/* 公告 */
.notice-bar {
  background: linear-gradient(90deg, rgba(201, 163, 92, .16), rgba(201, 163, 92, .05));
  border-bottom: 1px solid rgba(201, 163, 92, .28);
  color: var(--gold-bright); text-align: center; font-size: 13px; padding: 9px 16px; letter-spacing: 1.5px;
}

/* ---------- 首屏（真实现场照片打底） ---------- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center;
  text-align: center; overflow: hidden;
  background:
    linear-gradient(to bottom, rgba(8, 7, 6, .74) 0%, rgba(8, 7, 6, .62) 40%, rgba(10, 9, 8, .9) 82%, var(--bg) 100%),
    url('../img/photo/ph-sc-03.jpg') center 40% / cover no-repeat;
}
.hero .beams { position: absolute; inset: 0; pointer-events: none; mix-blend-mode: screen; }
.hero .beam {
  position: absolute; top: -12%; width: 130px; height: 125%;
  background: linear-gradient(to bottom, rgba(235, 205, 148, .28), rgba(235, 205, 148, 0) 72%);
  filter: blur(16px); transform-origin: top center; animation: sway 7s ease-in-out infinite alternate;
}
.hero .beam.b1 { left: 12%; animation-delay: 0s; }
.hero .beam.b2 { left: 34%; width: 90px; opacity: .7; animation-delay: 1.4s; animation-duration: 8.5s; }
.hero .beam.b3 { right: 30%; width: 110px; animation-delay: .8s; animation-duration: 9.5s; }
.hero .beam.b4 { right: 10%; opacity: .7; animation-delay: 2.2s; }
@keyframes sway { from { transform: rotate(-6deg); } to { transform: rotate(6deg); } }
.hero .haze { position: absolute; left: 50%; bottom: -160px; width: 900px; height: 360px; transform: translateX(-50%); background: radial-gradient(ellipse at center, rgba(235, 205, 148, .16), transparent 65%); pointer-events: none; }
.hero-inner { position: relative; padding: 150px 24px 120px; z-index: 2; }
.hero .tag { display: inline-block; border: 1px solid rgba(235, 205, 148, .42); color: var(--gold-bright); font-size: 13px; letter-spacing: 6px; padding: 8px 26px; margin-bottom: 34px; backdrop-filter: blur(2px); }
.hero h1 { font-family: var(--serif); font-size: clamp(36px, 6vw, 66px); letter-spacing: 8px; line-height: 1.4; margin-bottom: 24px; text-shadow: 0 2px 40px rgba(0, 0, 0, .8), 0 0 60px rgba(201, 163, 92, .25); }
.hero h1 em { font-style: normal; display: block; font-size: clamp(19px, 3vw, 30px); letter-spacing: 5px; color: var(--gold-bright); margin-top: 12px; font-weight: 400; }
.hero p { max-width: 620px; margin: 0 auto 44px; color: rgba(240, 236, 228, .74); font-size: 15.5px; letter-spacing: 1px; text-shadow: 0 1px 16px rgba(0, 0, 0, .7); }
.hero-actions { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; padding: 14px 40px; font-size: 15px; letter-spacing: 3px; border: 1px solid transparent; cursor: pointer; transition: .25s; }
.btn-gold { background: linear-gradient(120deg, #b8904a, #e6c583); color: #17120a; font-weight: 600; box-shadow: 0 8px 30px rgba(201, 163, 92, .28); }
.btn-gold:hover { box-shadow: 0 10px 44px rgba(201, 163, 92, .5); transform: translateY(-2px); }
.btn-ghost { border-color: rgba(255, 255, 255, .32); color: #fff; background: rgba(0, 0, 0, .15); }
.btn-ghost:hover { border-color: var(--gold-bright); color: var(--gold-bright); }
.btn-line { border-color: rgba(201, 163, 92, .55); color: var(--gold-bright); }
.btn-line:hover { background: rgba(201, 163, 92, .12); }
.hero-stats { display: flex; gap: 70px; justify-content: center; margin-top: 76px; flex-wrap: wrap; }
.hero-stats .num { font-family: var(--serif); font-size: 38px; color: var(--gold-bright); text-shadow: 0 0 28px rgba(201, 163, 92, .45), 0 2px 12px rgba(0, 0, 0, .8); }
.hero-stats .lab { font-size: 12.5px; color: rgba(240, 236, 228, .58); letter-spacing: 3px; }

/* ---------- 区块通用 ---------- */
.section { padding: 100px 0; position: relative; }
.section.alt { background: var(--bg-2); }
.sec-head { text-align: center; margin-bottom: 60px; }
.sec-head .sub { font-size: 12px; letter-spacing: 6px; color: var(--gold-deep); text-transform: uppercase; margin-bottom: 12px; }
.sec-head h2 { font-family: var(--serif); font-size: 36px; letter-spacing: 6px; }
.sec-head .rule { width: 54px; height: 2px; background: linear-gradient(90deg, transparent, var(--gold), transparent); margin: 20px auto 0; }
.sec-head p.desc { color: var(--txt-soft); margin-top: 18px; max-width: 640px; margin-left: auto; margin-right: auto; }

/* ---------- 全幅光影图文带 ---------- */
.photo-band {
  position: relative; min-height: 58vh; display: flex; align-items: center; justify-content: center;
  text-align: center; overflow: hidden;
  background:
    linear-gradient(rgba(8, 7, 6, .68), rgba(8, 7, 6, .78)),
    url('../img/photo/ph-zy-11.jpg') center / cover no-repeat;
}
.photo-band .inner { position: relative; padding: 90px 24px; }
.photo-band .sub { font-size: 12px; letter-spacing: 7px; color: var(--gold-bright); margin-bottom: 20px; text-transform: uppercase; }
.photo-band h2 { font-family: var(--serif); font-size: clamp(26px, 3.6vw, 40px); letter-spacing: 7px; line-height: 1.8; text-shadow: 0 2px 36px rgba(0, 0, 0, .8); }
.photo-band p { color: rgba(240, 236, 228, .68); margin-top: 18px; letter-spacing: 2px; font-size: 14.5px; }

/* ---------- 服务 ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 22px; }
.svc-card { background: linear-gradient(160deg, rgba(255, 248, 235, .05), rgba(255, 248, 235, .012)); border: 1px solid var(--line); padding: 40px 30px; transition: .3s; position: relative; overflow: hidden; }
.svc-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(201, 163, 92, .55), transparent); opacity: 0; transition: .3s; }
.svc-card:hover { transform: translateY(-6px); border-color: rgba(201, 163, 92, .35); box-shadow: 0 20px 50px rgba(0, 0, 0, .55), 0 0 40px rgba(201, 163, 92, .07); }
.svc-card:hover::before { opacity: 1; }
.svc-card .no { font-family: var(--serif); font-size: 15px; color: var(--gold); letter-spacing: 3px; }
.svc-card h3 { font-family: var(--serif); font-size: 21px; margin: 12px 0 12px; letter-spacing: 3px; }
.svc-card p { font-size: 14px; color: var(--txt-soft); }

/* ---------- 案例（大图沉浸式，统一 16:10 对齐） ---------- */
.case-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 24px; }
.case-grid.wide { grid-template-columns: repeat(auto-fill, minmax(460px, 1fr)); }
.case-grid.thirds { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.case-card { position: relative; overflow: hidden; aspect-ratio: 16/10; background: var(--panel); border: 1px solid var(--line); display: block; }
.case-card img { width: 100%; height: 100%; object-fit: cover; object-position: center; transition: transform .8s cubic-bezier(.2, .7, .2, 1), filter .4s; filter: brightness(.96) saturate(1.02); }
.case-card:hover img { transform: scale(1.04); filter: brightness(1.03) saturate(1.05); }
.case-card .veil { position: absolute; inset: 0; background: linear-gradient(to top, rgba(8, 7, 6, .9) 0%, rgba(8, 7, 6, .28) 46%, transparent 72%); transition: .4s; }
.case-card:hover .veil { background: linear-gradient(to top, rgba(8, 7, 6, .94) 0%, rgba(8, 7, 6, .4) 56%, transparent 82%); }
.case-card .info { position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 28px; }
.case-card .meta { display: flex; gap: 10px; align-items: center; font-size: 12px; color: var(--gold-bright); margin-bottom: 8px; letter-spacing: 1px; }
.case-card .cat { border: 1px solid rgba(235, 205, 148, .45); padding: 2px 12px; letter-spacing: 2px; }
.case-card h3 { font-family: var(--serif); font-size: 22px; letter-spacing: 2px; line-height: 1.45; text-shadow: 0 2px 18px rgba(0, 0, 0, .7); }
.case-card p { font-size: 13.5px; color: rgba(240, 236, 228, .74); margin-top: 8px; max-height: 0; opacity: 0; overflow: hidden; transition: .45s ease; }
.case-card:hover p { max-height: 90px; opacity: 1; }
.case-card .go { display: inline-block; margin-top: 12px; font-size: 12.5px; color: var(--gold-bright); letter-spacing: 3px; opacity: .9; }
.empty-tip { text-align: center; color: var(--txt-soft); padding: 70px 0; letter-spacing: 2px; }

/* ---------- 图墙（统一 4:3 网格，行列对齐） ---------- */
.gal { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 900px) { .gal { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .gal { grid-template-columns: 1fr; } }
.gal .shot { position: relative; overflow: hidden; border: 1px solid var(--line); background: var(--panel); aspect-ratio: 4 / 3; }
.gal .shot img { width: 100%; height: 100%; object-fit: cover; object-position: center; filter: brightness(.97) saturate(1.02); transition: transform .8s ease, filter .5s; }
.gal .shot:hover img { filter: brightness(1.04) saturate(1.06); transform: scale(1.03); }
.gal .shot .cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 46px 18px 14px; background: linear-gradient(to top, rgba(8, 7, 6, .9), transparent); font-size: 13px; letter-spacing: 2px; color: rgba(255, 255, 255, .9); }

/* ---------- 流程 ---------- */
.flow-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0; border: 1px solid var(--line); background: linear-gradient(160deg, rgba(255, 248, 235, .03), transparent); }
.flow-item { padding: 42px 30px; border-right: 1px solid var(--line); }
.flow-item:last-child { border-right: none; }
.flow-item .step { font-family: var(--serif); font-size: 34px; color: transparent; -webkit-text-stroke: 1px rgba(201, 163, 92, .6); }
.flow-item h4 { font-size: 17px; margin: 12px 0 8px; letter-spacing: 3px; }
.flow-item p { font-size: 13px; color: var(--txt-soft); }

/* ---------- 关于，名句区用晚宴实拍打底 ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
@media (max-width: 880px) { .about-grid { grid-template-columns: 1fr; } }
.about-grid h2 { font-family: var(--serif); font-size: 30px; letter-spacing: 4px; margin-bottom: 20px; }
.about-grid p { color: var(--txt-soft); margin-bottom: 15px; font-size: 15px; }
.about-grid .sub { font-size: 12px; letter-spacing: 6px; color: var(--gold-deep); margin-bottom: 12px; text-transform: uppercase; }
.about-quote {
  position: relative; padding: 62px 44px; overflow: hidden; border: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(8, 7, 6, .82), rgba(8, 7, 6, .9)),
    url('../img/photo/ph-sc-01.jpg') center / cover no-repeat;
}
.about-quote blockquote { position: relative; font-family: var(--serif); font-size: 26px; letter-spacing: 5px; line-height: 2.1; color: var(--gold-bright); text-shadow: 0 0 34px rgba(201, 163, 92, .35), 0 2px 16px rgba(0, 0, 0, .8); }
.about-quote cite { position: relative; display: block; margin-top: 26px; font-style: normal; font-size: 13px; color: rgba(240, 236, 228, .55); letter-spacing: 2px; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 22px; }
.contact-card { background: linear-gradient(160deg, rgba(255, 248, 235, .05), rgba(255, 248, 235, .012)); border: 1px solid var(--line); padding: 40px 30px; text-align: center; transition: .3s; }
.contact-card:hover { border-color: rgba(201, 163, 92, .35); }
.contact-card .ico { font-size: 24px; margin-bottom: 14px; filter: drop-shadow(0 0 12px rgba(201, 163, 92, .45)); }
.contact-card h4 { font-size: 13px; letter-spacing: 4px; color: var(--gold); margin-bottom: 10px; }
.contact-card p { font-size: 17px; font-weight: 600; letter-spacing: 1px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #060505; border-top: 1px solid var(--line); color: rgba(240, 236, 228, .58); padding: 56px 0 28px; font-size: 14px; }
.site-footer .top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 24px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.site-footer .brand img { height: 38px; opacity: .9; }
.site-footer .brand:hover img { filter: none; }
.site-footer .top p { margin-top: 14px; line-height: 2; }
.site-footer .links { display: flex; gap: 30px; align-items: flex-start; }
.site-footer .links a { letter-spacing: 1px; transition: .2s; }
.site-footer .links a:hover { color: var(--gold-bright); }
.site-footer .bottom { padding-top: 22px; text-align: center; font-size: 12.5px; color: rgba(240, 236, 228, .36); }
.site-footer .bottom a { color: rgba(240, 236, 228, .48); }
.site-footer .bottom a:hover { color: var(--gold-bright); }

/* ---------- 案例详情 ---------- */
.case-hero { height: 64vh; min-height: 400px; background: var(--panel) center/cover no-repeat; position: relative; }
.case-hero .shade { position: absolute; inset: 0; background: linear-gradient(to top, var(--bg) 0%, rgba(10, 9, 8, .55) 38%, rgba(10, 9, 8, .2) 78%, rgba(10, 9, 8, .45) 100%); }
.case-hero .wrap { position: absolute; bottom: 44px; left: 0; right: 0; }
.case-hero h1 { font-family: var(--serif); font-size: clamp(28px, 4.5vw, 46px); letter-spacing: 4px; text-shadow: 0 2px 30px rgba(0, 0, 0, .85); }
.case-hero .meta { color: var(--gold-bright); font-size: 14px; margin-top: 12px; letter-spacing: 2px; }
.case-detail { background: var(--bg); padding: 70px 0 60px; }
.case-detail .info-row { display: flex; gap: 46px; flex-wrap: wrap; padding-bottom: 30px; margin-bottom: 40px; border-bottom: 1px solid var(--line); }
.case-detail .info-row div { font-size: 15px; }
.case-detail .info-row b { display: block; font-size: 11.5px; letter-spacing: 4px; color: var(--gold-deep); margin-bottom: 6px; font-weight: 600; }
.case-content { max-width: 780px; margin: 0 auto; font-size: 16.5px; color: rgba(240, 236, 228, .86); letter-spacing: .5px; }
.case-content p { margin-bottom: 22px; }
.back-link { display: inline-block; margin: 40px 0 10px; color: var(--gold); font-size: 14px; letter-spacing: 2px; }
.back-link:hover { color: var(--gold-bright); }

/* ---------- 内页横幅（实拍打底） ---------- */
.page-banner {
  position: relative; padding: 180px 0 96px; overflow: hidden; text-align: center;
  background:
    linear-gradient(to bottom, rgba(8, 7, 6, .78), rgba(8, 7, 6, .7) 55%, var(--bg) 100%),
    url('../img/photo/ph-zy-11.jpg') center 55% / cover no-repeat;
}
.page-banner h1 { font-family: var(--serif); font-size: 40px; letter-spacing: 8px; position: relative; text-shadow: 0 2px 32px rgba(0, 0, 0, .8), 0 0 50px rgba(201, 163, 92, .2); }
.page-banner p { position: relative; color: rgba(240, 236, 228, .6); margin-top: 14px; letter-spacing: 4px; font-size: 14px; }

/* ---------- 筛选 ---------- */
.filter-bar { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-bottom: 46px; }
.filter-bar button { padding: 9px 24px; border: 1px solid var(--line); background: rgba(255, 248, 235, .03); color: var(--txt-soft); font-size: 14px; cursor: pointer; transition: .2s; letter-spacing: 2px; }
.filter-bar button:hover, .filter-bar button.on { border-color: var(--gold); color: var(--gold-bright); background: rgba(201, 163, 92, .1); box-shadow: 0 0 18px rgba(201, 163, 92, .1); }