/* ============ 基础 ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --primary: #0b6e5a;
  --primary-dark: #084c3e;
  --primary-light: #e6f3ef;
  --accent: #f2a51a;
  --dark: #10312a;
  --darker: #0a231e;
  --gray: #64807a;
  --light: #f6faf8;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(16,49,42,.10);
  --shadow-lg: 0 18px 44px rgba(16,49,42,.18);
}
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", sans-serif; color: var(--dark); line-height: 1.75; background: #fff; overflow-x: hidden; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ============ 滚动浮现动画 ============ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.on { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } .scroll-down i::after { animation: none; opacity: .85; } }

/* ============ 导航 ============ */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: transparent;
  transition: background-color .4s ease, box-shadow .4s ease, backdrop-filter .4s ease; }
.navbar.scrolled { background: rgba(255,255,255,.94); backdrop-filter: blur(12px); box-shadow: 0 4px 18px rgba(16,49,42,.10); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 24px; }
.logo { display: flex; align-items: center; gap: 12px; }
.logo-img { height: 50px; width: auto; display: block; transition: .4s; }
.logo-text { font-size: 17px; font-weight: 800; color: var(--primary); letter-spacing: .05em; line-height: 1.2; transition: .4s; }
.logo-sub { font-size: 11px; letter-spacing: 2px; color: #92b3ab; font-weight: 600; line-height: 1.5; transition: .4s; }
.navbar .logo-img { filter: brightness(0) invert(1); }
.navbar .logo-text { color: #fff; }
.navbar .logo-sub { color: rgba(255,255,255,.7); }
.navbar.scrolled .logo-img { filter: none; }
.navbar.scrolled .logo-text { color: var(--primary); }
.navbar.scrolled .logo-sub { color: #92b3ab; }
.logo-light .logo-text { color: #fff; }
.logo-light .logo-sub { color: rgba(255,255,255,.55); }
.logo-light .logo-img { height: 58px; filter: brightness(0) invert(1); }
.nav-links { display: flex; gap: 26px; font-weight: 600; font-size: 15px; align-items: center; }
.nav-links a { transition: color .35s ease; }
.navbar:not(.scrolled) .nav-links a { color: #fff; }
.navbar:not(.scrolled) .nav-links a:not(.nav-cta):hover { color: #ffc45e; }
.nav-links a:not(.nav-cta):hover { color: var(--primary); }
.nav-cta { background: var(--primary); color: #fff !important; padding: 10px 20px; border-radius: 40px; transition: .25s; }
.nav-cta:hover { background: var(--primary-dark); transform: translateY(-1px); }
.menu-btn { display: none; background: none; border: none; font-size: 26px; cursor: pointer; color: #fff; transition: color .35s ease; }
.navbar.scrolled .menu-btn { color: var(--primary); }
/* 抽屉标题栏（由 main.js 注入）默认不显示：它的样式只写在 680px 断点内，
   桌面端若没有这条兜底，它会作为无样式块的子元素直接挤进横向导航里 */
.nav-close { display: none; }

/* ============ 首屏 ============ */
.hero { position: relative; color: #fff; text-align: center; overflow: hidden; display: flex; flex-direction: column; justify-content: center;
  min-height: 100vh; min-height: 100svh; padding: 110px 0 96px; }
.hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 160px; z-index: 1; pointer-events: none;
  background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,.5) 58%, #fff 100%); }
.hero-bg {
  position: absolute; inset: 0;
  background: url("../images/sayram-shore.jpg") center/cover no-repeat;
  filter: saturate(1.1) brightness(1.1);
  animation: heroZoom 18s ease-out both;
}
@keyframes heroZoom { from { transform: scale(1.12); } to { transform: scale(1); } }
.hero-bg::after { content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(8,40,34,.36) 0%, rgba(8,40,34,.28) 36%, rgba(8,40,34,.22) 68%, rgba(8,40,34,.30) 100%); }
.hero-content { position: relative; z-index: 2; }
.hero-tag { display: inline-block; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.35); backdrop-filter: blur(6px); border-radius: 50px; padding: 7px 20px; font-size: 14px; letter-spacing: 3px; margin-bottom: 24px; }
.hero h1 { font-size: 52px; line-height: 1.25; margin-bottom: 18px; text-shadow: 0 4px 24px rgba(0,0,0,.5); }
.hero h1 .hl { color: #ffc45e; }
.hero-sub { max-width: 700px; margin: 0 auto 36px; font-size: 17px; opacity: .96; line-height: 2; text-shadow: 0 2px 12px rgba(0,0,0,.45); }

.btn { display: inline-block; padding: 14px 36px; border-radius: 50px; font-weight: 700; transition: .25s; }
.btn-primary { background: linear-gradient(135deg, #ffb52e, var(--accent)); color: #fff; box-shadow: 0 8px 22px rgba(242,165,26,.42); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(242,165,26,.55); }
.hero-btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn-ghost { background: rgba(255,255,255,.1); color: #fff; border: 1px solid rgba(255,255,255,.55); }
.btn-ghost:hover { background: rgba(255,255,255,.22); transform: translateY(-2px); }

/* 首屏向下滚动提示 */
.scroll-down { position: absolute; left: 50%; bottom: 28px; z-index: 2; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(16,49,42,.55); font-size: 12px; letter-spacing: 4px; text-indent: 4px;
  transition: color .3s ease, opacity .4s ease; }
.scroll-down em { font-style: normal; white-space: nowrap; }
.scroll-down i { position: relative; display: block; width: 1px; height: 38px; overflow: hidden;
  background: linear-gradient(180deg, rgba(11,110,90,.12), rgba(11,110,90,.5)); }
.scroll-down i::after { content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 50%;
  background: linear-gradient(180deg, rgba(11,110,90,0), var(--primary));
  animation: scrollLine 1.9s cubic-bezier(.65,0,.35,1) infinite; }
.scroll-down:hover { color: var(--primary); }
@keyframes scrollLine {
  0% { transform: translateY(-100%); opacity: 0; }
  30% { opacity: 1; }
  70% { opacity: 1; }
  100% { transform: translateY(200%); opacity: 0; }
}

/* ============ 区块通用 ============ */
.section { padding: 80px 0 90px; }
.section-gray { background: var(--light); }
.section-dark { background: linear-gradient(160deg, #1d574b, #14413a); color: #eaf4f0; }
.section-head { text-align: center; margin-bottom: 52px; }
.section-head em { display: block; font-style: normal; font-size: 12px; letter-spacing: 5px; color: var(--accent); font-weight: 800; margin-bottom: 8px; }
.section-head h2 { font-size: 36px; margin-bottom: 10px; }
.section-head p { color: var(--gray); font-size: 15px; }
.section-dark .section-head p { color: #b6d6cc; }

/* 板块内的次级标题（如服务优势里的游客评价） */
.sub-head { text-align: center; margin: 62px 0 36px; }
.sub-head em { display: block; font-style: normal; font-size: 12px; letter-spacing: 5px; color: var(--accent); font-weight: 800; margin-bottom: 8px; }
.sub-head h3 { font-size: 28px; margin-bottom: 8px; }
.sub-head p { color: var(--gray); font-size: 15px; }

/* ============ 线路卡片 ============ */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); gap: 26px; }
.card { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: .35s; display: flex; flex-direction: column; }
.card:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); }
.card-img { height: 200px; position: relative; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.card:hover .card-img img { transform: scale(1.08); }
.card-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0) 45%, rgba(0,0,0,.45)); }
.card-img em { position: absolute; left: 16px; top: 14px; z-index: 2; background: rgba(255,255,255,.92); color: var(--primary-dark); font-style: normal; font-size: 13px; font-weight: 800; padding: 5px 14px; border-radius: 20px; }
.card-body { padding: 18px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.card-tags { display: flex; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.card-tags span { font-size: 12px; color: var(--primary); background: var(--primary-light); padding: 3px 10px; border-radius: 6px; font-weight: 700; }
.card-body h3 { font-size: 17px; margin-bottom: 6px; line-height: 1.5; }
.card-body h3 a { color: inherit; transition: color .25s ease; }
.card-body h3 a:hover { color: var(--primary); }
/* 简介最多 3 行，四张卡片高度一致、整体更紧凑 */
.card-body p { font-size: 14px; color: var(--gray); flex: 1; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; line-clamp: 3; overflow: hidden; }
.card-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; }
/* 线路卡片底部：左侧报价咨询入口、右侧详情入口（价格随团期变化，不在页面标注） */
.card-foot .link { margin-left: auto; }
.card-foot strong { color: var(--accent); font-size: 24px; font-weight: 800; }
.card-foot strong span { font-size: 12px; color: var(--gray); font-weight: 400; }
.link { color: var(--primary); font-weight: 700; font-size: 14px; }
.link:hover { color: var(--accent); }
.link-quote { color: var(--primary); font-weight: 700; font-size: 13px; background: var(--primary-light);
  border: 1px solid #d8ebe4; padding: 7px 14px; border-radius: 50px; transition: .25s; white-space: nowrap; }
.link-quote:hover { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ============ 图墙 ============ */
.masonry { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 190px; gap: 16px; }
.m-item { position: relative; border-radius: 14px; overflow: hidden; cursor: pointer; }
.m-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.m-item:hover img { transform: scale(1.07); }
.m-wide { grid-column: span 2; }
.m-tall { grid-row: span 2; }
.m-item figcaption { position: absolute; inset: auto 0 0 0; padding: 40px 18px 14px;
  background: linear-gradient(180deg, transparent, rgba(6,30,25,.82)); color: #fff;
  display: flex; flex-direction: column; opacity: 0; transform: translateY(10px); transition: .35s; }
.m-item:hover figcaption { opacity: 1; transform: none; }
.m-item figcaption strong { font-size: 16px; }
.m-item figcaption span { font-size: 12.5px; opacity: .85; }

/* ============ 服务优势 ============ */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 26px; }
.feature { background: #fff; border-radius: var(--radius); padding: 34px 28px; box-shadow: var(--shadow); transition: .3s; border: 1px solid #eef4f1; }
.section .feature { background: #fff; }
.feature:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature .icon { width: 60px; height: 60px; border-radius: 16px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; font-size: 28px; margin-bottom: 18px; }
.feature h3 { margin-bottom: 8px; font-size: 18px; }
.feature p { font-size: 14px; color: var(--gray); }

/* ============ 关于 ============ */
.about-inner { display: grid; grid-template-columns: 1.15fr 1fr; gap: 60px; align-items: center; }
.about-text p { margin-bottom: 14px; color: #4c6a61; font-size: 15.5px; }
.about-visual { position: relative; display: grid; grid-template-columns: 1.3fr 1fr; grid-template-rows: 170px 170px; gap: 14px; }
.ab-img { border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); }
.ab-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.ab-img:hover img { transform: scale(1.06); }
.ab-img:first-child { grid-row: span 2; }
.ab-badge { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); background: linear-gradient(135deg, #ffb52e, var(--accent)); color: #fff;
  border-radius: 16px; padding: 16px 22px; box-shadow: 0 12px 28px rgba(242,165,26,.4); display: flex; flex-direction: column; align-items: center; line-height: 1.2; }
.ab-badge strong { font-size: 34px; font-weight: 800; }
.ab-badge strong small { font-size: 15px; }
.ab-badge span { font-size: 12px; opacity: .95; letter-spacing: 2px; }

/* ============ 评价 ============ */
.review { background: #fff; border: 1px solid #e9f1ee; border-radius: var(--radius); padding: 32px 28px; box-shadow: var(--shadow); transition: .3s; }
.review:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: #dbeae4; }
.stars { color: #ffb52e; font-size: 17px; letter-spacing: 4px; margin-bottom: 14px; }
.review p { font-size: 15px; color: #4c6a61; margin-bottom: 20px; }
.who { display: flex; align-items: center; gap: 12px; padding-top: 16px; border-top: 1px dashed #e0ebe7; }
.who b { display: block; font-size: 14.5px; }
.who span { font-size: 12.5px; color: var(--gray); }
.ava { width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-style: normal; font-weight: 800; color: #fff; flex: none; }
.a1 { background: linear-gradient(135deg, #f2a51a, #e2683c); }
.a2 { background: linear-gradient(135deg, #18a879, #0b6e5a); }
.a3 { background: linear-gradient(135deg, #3f8fd2, #2757a5); }

/* ============ 联系 ============ */
.contact-section { background: linear-gradient(180deg, #fff 0%, var(--light) 100%); }
.ico-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.ico { display: block; }
.contact-head { text-align: center; margin-bottom: 34px; }

/* 「联系我们」上方小标题：两侧渐隐短线 + 金色小字 */
.ct-kicker { display: flex; align-items: center; justify-content: center; gap: 14px; margin-bottom: 14px; }
.ct-kicker i { display: block; width: 40px; height: 1px;
  background: linear-gradient(90deg, rgba(201,150,44,0), rgba(201,150,44,.85)); }
.ct-kicker i:last-child { background: linear-gradient(90deg, rgba(201,150,44,.85), rgba(201,150,44,0)); }
.ct-kicker span { font-size: 14px; font-weight: 700; letter-spacing: 3px; text-indent: 3px; color: #c9962c; }
.contact-head h2 { font-size: 42px; line-height: 1.3; color: #10312a; margin-bottom: 14px; }
.contact-head .ct-desc { max-width: 720px; margin: 0 auto; font-size: 14.5px; line-height: 2; color: #6b7f7a; }

/* 左：深绿信息卡 + 右：白色拨号卡 */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: stretch; }
.contact-info { position: relative; overflow: hidden; border-radius: 16px; padding: 26px 28px;
  background: linear-gradient(150deg, #1a5b4b 0%, #103b31 100%); color: #fff; box-shadow: 0 14px 34px rgba(16,59,49,.22); }
.contact-info::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent, #e5b94a, transparent); opacity: .7; }
.contact-info::after { content: ""; position: absolute; right: -70px; top: -90px; width: 220px; height: 220px; border-radius: 50%;
  background: radial-gradient(circle, rgba(229,185,74,.15), transparent 68%); pointer-events: none; }
.contact-info h3 { position: relative; font-size: 20px; margin-bottom: 8px; color: #fff; }
.ci-sub { position: relative; font-size: 12.5px; line-height: 1.75; color: rgba(255,255,255,.55); margin-bottom: 18px; }
.ci-list { position: relative; list-style: none; }
.ci-list li { display: flex; gap: 12px; align-items: flex-start; }
.ci-list li + li { margin-top: 14px; }
.ci-ic { flex: none; width: 38px; height: 38px; border-radius: 10px; background: rgba(229,185,74,.15); color: #e5b94a;
  display: flex; align-items: center; justify-content: center; }
.ci-ic .ico { width: 18px; height: 18px; }
.ci-tx { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.ci-tx > em { font-style: normal; font-size: 12px; color: rgba(255,255,255,.5); }
.ci-tx > b { font-size: 14.5px; font-weight: 600; color: #fff; line-height: 1.5; }
.ci-tx > b a { color: inherit; transition: .2s; }
.ci-tx > b a:hover { color: #e5b94a; }

.call-card { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 26px 28px;
  background: #fff; border: 1px solid #e6eeea; border-radius: 16px; box-shadow: 0 14px 34px rgba(16,49,42,.09); }
.call-ic { width: 54px; height: 54px; border-radius: 15px; margin-bottom: 14px; color: #fff;
  background: linear-gradient(135deg, #18a879, #0b6e5a); box-shadow: 0 8px 18px rgba(11,110,90,.32);
  display: flex; align-items: center; justify-content: center; }
.call-ic .ico { width: 26px; height: 26px; }
.call-card h3 { font-size: 19px; color: #0f453a; margin-bottom: 8px; }
.call-desc { max-width: 300px; font-size: 12.5px; line-height: 1.8; color: var(--gray); margin-bottom: 18px; }
.call-main { display: inline-flex; align-items: center; gap: 9px; height: 48px; padding: 0 26px; border-radius: 999px;
  background: #134f41; color: #e5b94a; font-size: 18px; font-weight: 700; letter-spacing: .5px;
  box-shadow: 0 10px 22px rgba(15,74,62,.26); transition: .25s; }
.call-main .ico { width: 20px; height: 20px; }
.call-main:hover { background: #1a5b4b; transform: translateY(-2px); box-shadow: 0 14px 28px rgba(15,74,62,.34); }
.call-alt { margin-top: 12px; font-size: 12.5px; color: var(--gray); }
.call-alt a { color: #c9962c; font-weight: 700; }
.call-alt a:hover { color: #a97f1f; }
.call-points { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 18px; width: 100%; list-style: none;
  margin-top: 18px; padding-top: 16px; border-top: 1px dashed #e2ebe7; }
.call-points li { display: flex; align-items: center; gap: 6px; font-size: 12px; color: #6b8580; }
.call-points li::before { content: "✓"; color: #c9962c; font-weight: 800; }
.contact-form { background: #fff; border-radius: var(--radius); padding: 36px 32px; box-shadow: var(--shadow-lg); border: 1px solid #e6efeb; }
.contact-form h3 { margin-bottom: 22px; text-align: center; font-size: 20px; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; padding: 13px 16px; margin-bottom: 14px; border: 1px solid #d5e3de; border-radius: 10px;
  font-size: 14px; font-family: inherit; outline: none; transition: .2s; background: #fbfdfc; resize: vertical;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(11,110,90,.12); }
.btn-block { width: 100%; border: none; cursor: pointer; font-size: 16px; }
.form-tip { text-align: center; color: var(--primary); font-size: 14px; min-height: 22px; margin-top: 10px; }

/* ============ 页脚 ============ */
.footer { background: #071b16; color: #a8c7bd; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 30px; padding: 60px 24px 44px; }
.footer h4 { color: #fff; margin-bottom: 16px; font-size: 15px; }
.footer a { display: block; padding: 4px 0; font-size: 14px; color: #82a99e; transition: .2s; }
.footer a:hover { color: #fff; padding-left: 4px; }
.footer-desc { font-size: 14px; margin-top: 14px; line-height: 2; }
.footer-bottom { background: transparent; border-top: 1px solid rgba(255,255,255,.06); padding: 18px 0; text-align: center; font-size: 13px; color: #67907f; }
.footer-bottom a { color: #a9cdc2; display: inline; }

/* ============ 悬浮回到首页 ============ */
.float-cta { position: fixed; right: 26px; bottom: 30px; z-index: 90; width: 62px; height: 62px; border-radius: 50%;
  background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 18px rgba(11,110,90,.32); transition: transform .25s ease, background-color .25s ease; }
.float-cta svg { width: 30px; height: 30px; display: block; }
.float-cta:hover { transform: translateY(-4px); background: var(--primary-dark); }
.float-cta:active { transform: translateY(-1px) scale(.95); }
.float-cta:focus-visible { outline: 3px solid rgba(11,110,90,.45); outline-offset: 3px; }

/* ============ 企业资质（按参考稿尺寸 1:1） ============ */
.qual-band { background: var(--primary-light); padding: 56px 0 47px; text-align: center; }
.qual-eyebrow { display: flex; align-items: center; justify-content: center; gap: 16px; height: 22px; line-height: 1; font-style: normal; font-size: 16px; letter-spacing: 2px; color: #c9962c; font-weight: 700; }
.qual-eyebrow::before, .qual-eyebrow::after { content: ""; width: 30px; height: 1px; background: #c9962c; opacity: .5; }
.qual-title { margin-top: 20px; font-size: 40px; font-weight: 800; color: #0d2b44; letter-spacing: 1px; line-height: 1.2; }
.qual-desc { max-width: 610px; margin: 20px auto 0; color: #5a6472; font-size: 16px; line-height: 1.95; }
.qual-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 274px)); gap: 25px; justify-content: center; margin-top: 68px; }
.qual-card { height: 253px; padding: 8px; background: #fff; border-radius: 10px; box-shadow: 0 6px 16px rgba(13,43,68,.07); display: flex; flex-direction: column; cursor: zoom-in; text-align: left; transition: transform .3s ease, box-shadow .3s ease; }
.qual-card:hover { transform: translateY(-4px); box-shadow: 0 12px 26px rgba(13,43,68,.13); }
.qual-card:focus-visible { outline: 3px solid rgba(201,150,44,.55); outline-offset: 3px; }
.qual-shot { position: relative; flex: 1 1 auto; min-height: 0; display: flex; align-items: center; justify-content: center; overflow: hidden; border-radius: 6px; }
.qual-shot img { width: 100%; height: 100%; object-fit: contain; }
.qual-zoom { position: absolute; left: 50%; bottom: 8px; transform: translateX(-50%); background: rgba(13,43,68,.8); color: #fff; font-size: 12px; padding: 5px 12px; border-radius: 30px; opacity: 0; transition: opacity .25s ease; white-space: nowrap; }
.qual-card:hover .qual-zoom { opacity: 1; }
.qual-cap { flex: none; display: flex; align-items: center; gap: 8px; height: 38px; padding-left: 6px; color: #5f6876; font-size: 15px; }
.qual-cap i { flex: none; width: 7px; height: 7px; border-radius: 50%; background: #cc9b36; }
.qual-note { margin-top: 37px; color: #5a6472; font-size: 13.5px; }
.qual-note b { color: #1b4f72; }

/* 证照放大查看 */
.lightbox { position: fixed; inset: 0; z-index: 200; display: none; align-items: center; justify-content: center; background: rgba(10,35,30,.9); padding: 28px 20px; }
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: calc(100vh - 110px); border-radius: 12px; background: #fff; box-shadow: 0 24px 70px rgba(0,0,0,.55); }
.lb-close { position: absolute; top: 20px; right: 24px; width: 46px; height: 46px; border-radius: 50%; border: 1px solid rgba(255,255,255,.35); background: rgba(255,255,255,.12); color: #fff; font-size: 24px; line-height: 1; cursor: pointer; }
.lb-close:hover { background: rgba(255,255,255,.24); }
.lb-cap { position: absolute; left: 0; right: 0; bottom: 24px; text-align: center; color: #e6f3ef; font-size: 14px; padding: 0 20px; }

/* ============ 响应式 ============ */
@media (max-height: 660px) { .scroll-down { display: none; } }
@media (max-width: 1080px) {
  .nav-links { gap: 16px; font-size: 14px; }
  .logo-img { height: 44px; }
  .logo-light .logo-img { height: 50px; }
  .logo-text { font-size: 16px; }
  .logo-sub { font-size: 10px; letter-spacing: 1.4px; }
}
@media (max-width: 960px) {
  .about-inner { grid-template-columns: 1fr; gap: 44px; }
  .contact-wrap { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 36px; }
  .hero { padding: 100px 0 88px; }
  .scroll-down { bottom: 24px; font-size: 11px; letter-spacing: 3px; text-indent: 3px; }
  .scroll-down i { height: 32px; }
  .masonry { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 170px; }
  .ab-badge { left: 50%; top: 50%; }
}
@media (max-width: 680px) {
  .logo-img { height: 40px; }
  .logo-light .logo-img { height: 46px; }
  .logo-text { font-size: 15px; }
  .logo-sub { display: none; }
  .menu-btn { display: block; position: relative; z-index: 106; width: 34px; height: 34px; line-height: 1; border-radius: 8px; }
  /* 侧边抽屉导航：从右侧滑入（窄尺寸，避免占屏过多） */
  .nav-links {
    display: flex; flex-direction: column; align-items: stretch; text-align: left;
    position: fixed; top: 0; right: 0; bottom: 0; left: auto; width: min(64vw, 236px);
    max-width: 78vw; margin: 0; padding: 14px 18px 24px; gap: 0; background: #fff; border-radius: 0;
    box-shadow: -14px 0 44px rgba(16,49,42,.22); overflow-y: auto; overscroll-behavior: contain;
    z-index: 105; transform: translateX(105%); transition: transform .34s cubic-bezier(.3,.8,.4,1); visibility: hidden;
  }
  .nav-links.open { transform: none; visibility: visible; }
  .nav-links a { padding: 11px 2px; font-size: 14px; font-weight: 600; border-bottom: 1px solid #f0f6f3; color: var(--dark) !important; }
  .nav-links a:not(.nav-cta):hover { color: var(--primary); }
  .nav-cta { margin-top: 16px; padding: 11px 14px; font-size: 14px; border-bottom: none !important; text-align: center; color: #fff !important; }
  /* 抽屉内的关闭按钮 */
  .nav-close { display: flex; align-items: center; justify-content: space-between; padding-bottom: 10px; margin-bottom: 6px; border-bottom: 1px solid var(--primary-light); }
  .nav-close em { font-style: normal; font-size: 14px; font-weight: 800; color: var(--primary); letter-spacing: 2px; }
  .nav-close i { font-style: normal; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%;
    background: var(--primary-light); color: var(--primary); font-size: 15px; line-height: 1; cursor: pointer; }
  .nav-close i:hover { background: #d5ebe4; }
  /* 抽屉遮罩（由 main.js 注入，仅移动端出现） */
  .nav-overlay { position: fixed; inset: 0; z-index: 104; background: rgba(10,35,30,.5); opacity: 0; pointer-events: none; transition: opacity .34s ease; }
  .nav-overlay.open { opacity: 1; pointer-events: auto; }
  /* 抽屉打开时锁住页面滚动 */
  body.nav-open { overflow: hidden; }
  .footer-top { grid-template-columns: 1fr; }
  .contact-head { margin-bottom: 24px; }
  .ct-kicker { gap: 10px; margin-bottom: 10px; }
  .ct-kicker i { width: 24px; }
  .ct-kicker span { font-size: 13px; letter-spacing: 2px; text-indent: 2px; }
  .contact-head h2 { font-size: 28px; margin-bottom: 10px; }
  .contact-head .ct-desc { font-size: 13.5px; }
  .contact-info, .call-card { padding: 22px 20px; }
  .contact-info h3 { font-size: 18px; }
  .call-card h3 { font-size: 17px; }
  .call-main { width: 100%; justify-content: center; font-size: 17px; }
  .call-points { gap: 6px 14px; }
  .masonry { grid-template-columns: 1fr; grid-auto-rows: 200px; }
  .m-wide { grid-column: span 1; }
  .qual-band { padding: 36px 0 34px; }
  .qual-eyebrow { font-size: 14px; gap: 10px; }
  .qual-eyebrow::before, .qual-eyebrow::after { width: 20px; }
  .qual-title { margin-top: 20px; font-size: 26px; }
  .qual-desc { margin-top: 20px; font-size: 14.5px; line-height: 1.9; }
  .qual-cards { grid-template-columns: minmax(0, 1fr); max-width: 330px; gap: 16px; margin: 36px auto 0; }
  .qual-card { height: auto; }
  .qual-shot { flex: none; }
  .qual-shot img { height: auto; }
  .qual-zoom { opacity: 1; }
  .qual-cap { height: auto; padding: 12px 6px 4px; font-size: 14px; }
  .qual-note { margin-top: 28px; font-size: 12.5px; line-height: 1.8; }
  .lb-close { top: 12px; right: 14px; }
}