/*
 * 卡乐售 - bili 模板（PC 端）主样式
 * 视觉取自 B 站：粉 #FB7299 / 蓝 #00AEEC、页面底 #F1F2F7、白卡圆角 6~8px、
 * 视频卡式商品网格（封面 + 两行标题 + UP/播放/弹幕式元信息）
 * 类名统一 bi- 前缀，不依赖 jQuery / bootstrap
 */

:root {
    --bi-pink: #fb7299;
    --bi-pink-dark: #f25d8e;
    --bi-pink-soft: #fff0f5;
    --bi-blue: #00aeec;
    --bi-text: #18191c;
    --bi-text-2: #61666d;
    --bi-text-3: #9499a0;
    --bi-bg: #f1f2f7;
    --bi-card: #ffffff;
    --bi-line: #e7e8eb;
    --bi-radius: 6px;
    --bi-shadow: 0 1px 2px rgba(0, 0, 0, .04);
    --bi-shadow-hover: 0 4px 16px rgba(251, 114, 153, .18);
    --bi-wrap: 1280px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    background: var(--bi-bg);
    color: var(--bi-text);
    font: 14px/1.6 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }

/* 版心 */
.bi-wrap { width: var(--bi-wrap); max-width: 100%; margin: 0 auto; padding: 0 16px; }

/* ============ 主头部 ============ */
.bi-head { position: sticky; top: 0; z-index: 90; background: #fff; box-shadow: 0 1px 0 var(--bi-line); }
.bi-head-in { display: flex; align-items: center; gap: 22px; height: 64px; }

.bi-logo { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; }
.bi-tv { display: inline-flex; width: 44px; }
.bi-tv svg { width: 100%; height: auto; }
.bi-tv-sm { width: 34px; }
.bi-tv-lg { width: 76px; color: var(--bi-pink); }
.bi-logo img { height: 38px; width: auto; }
.bi-wordmark { font-size: 21px; font-weight: 700; letter-spacing: .5px; color: var(--bi-pink); white-space: nowrap; }

.bi-nav { display: flex; align-items: center; gap: 4px; flex: 0 0 auto; }
.bi-nav a { position: relative; padding: 0 12px; height: 64px; line-height: 64px; font-size: 15px; color: var(--bi-text); transition: color .2s; }
.bi-nav a::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 14px; height: 3px; border-radius: 2px; background: var(--bi-pink); transform: scaleX(0); transition: transform .22s; }
.bi-nav a:hover { color: var(--bi-pink); }
.bi-nav a:hover::after, .bi-nav a.on::after { transform: scaleX(1); }
.bi-nav a.on { color: var(--bi-pink); font-weight: 600; }

.bi-search { position: relative; flex: 1 1 auto; max-width: 320px; height: 38px; }
.bi-search input {
    width: 100%; height: 38px; padding: 0 44px 0 16px;
    border: 0; border-radius: 19px; background: var(--bi-bg);
    font-size: 13px; color: var(--bi-text); outline: none; transition: background .2s, box-shadow .2s;
}
.bi-search input::placeholder { color: var(--bi-text-3); }
.bi-search input:focus { background: #fff; box-shadow: 0 0 0 1.5px var(--bi-pink) inset; }
.bi-search button {
    position: absolute; right: 4px; top: 4px; width: 30px; height: 30px;
    display: inline-flex; align-items: center; justify-content: center;
    border: 0; border-radius: 50%; background: var(--bi-pink); color: #fff; transition: background .2s;
}
.bi-search button:hover { background: var(--bi-pink-dark); }
.bi-search button svg { width: 16px; height: 16px; }

.bi-user { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; margin-left: auto; }
.bi-me { display: flex; align-items: center; gap: 8px; max-width: 160px; }
.bi-avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--bi-pink-soft); color: var(--bi-pink); display: inline-flex; align-items: center; justify-content: center; overflow: hidden; flex: 0 0 auto; }
.bi-avatar svg { width: 22px; height: 22px; }
.bi-avatar-lg { width: 52px; height: 52px; }
.bi-avatar-lg svg { width: 32px; height: 32px; }
.bi-me-name { font-size: 14px; color: var(--bi-text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bi-me:hover .bi-me-name { color: var(--bi-pink); }
.bi-out { width: 30px; height: 30px; display: inline-flex; align-items: center; justify-content: center; border-radius: 6px; color: var(--bi-text-3); }
.bi-out:hover { background: var(--bi-bg); color: var(--bi-pink); }
.bi-out svg { width: 17px; height: 17px; }

.bi-btn-line, .bi-btn-pink { display: inline-flex; align-items: center; justify-content: center; height: 32px; padding: 0 18px; border-radius: 16px; font-size: 13px; transition: all .2s; }
.bi-btn-line { border: 1px solid var(--bi-pink); color: var(--bi-pink); background: #fff; }
.bi-btn-line:hover { background: var(--bi-pink-soft); }
.bi-btn-pink { border: 1px solid var(--bi-pink); background: var(--bi-pink); color: #fff; }
.bi-btn-pink:hover { background: var(--bi-pink-dark); border-color: var(--bi-pink-dark); }

/* 分区条 */
.bi-catbar { border-top: 1px solid var(--bi-line); background: #fff; }
.bi-catbar-in { display: flex; align-items: center; gap: 6px; height: 40px; overflow-x: auto; scrollbar-width: none; }
.bi-catbar-in::-webkit-scrollbar { display: none; }
.bi-chip { flex: 0 0 auto; padding: 4px 12px; border-radius: 14px; font-size: 13px; color: var(--bi-text-2); white-space: nowrap; transition: all .18s; }
.bi-chip:hover { color: var(--bi-pink); background: var(--bi-pink-soft); }
.bi-chip.on { color: #fff; background: var(--bi-pink); }
.bi-catbar-all { margin-left: auto; flex: 0 0 auto; display: inline-flex; align-items: center; font-size: 13px; color: var(--bi-text-3); }
.bi-catbar-all:hover { color: var(--bi-pink); }
.bi-catbar-all svg { width: 14px; height: 14px; }

/* ============ 首屏：轮播 + 会员面板 ============ */
.bi-hero { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 16px; align-items: stretch; margin-top: 16px; }

/* width:100% 必须保留：grid 项宽度为 auto 时，swiper 的百分比宽链会循环解析，
   宽度被 Chrome 撑到 2^25px（3355万px）的白盒、带 z-index 盖住右侧会员面板。
   高度用固定 400px（min-height:0）：不给图片 intrinsic 高度撑大整行的机会，
   右侧面板靠 align-items:stretch 向下补到与 banner 等高，两者对齐且不会过高 */
.bi-banner { position: relative; width: 100%; height: 400px; min-height: 0; border-radius: var(--bi-radius); overflow: hidden; background: #fff; box-shadow: var(--bi-shadow); }
.bi-banner .swiper-slide a { display: block; height: 100%; }
.bi-banner img { width: 100%; height: 100%; object-fit: fill; }
.bi-banner .swiper-pagination-bullet { background: #fff; opacity: .6; }
.bi-banner .swiper-pagination-bullet-active { background: var(--bi-pink); opacity: 1; }
.bi-banner .swiper-button-prev, .bi-banner .swiper-button-next { width: 34px; height: 34px; margin-top: -17px; border-radius: 50%; background: rgba(0, 0, 0, .28); color: #fff; display: flex; align-items: center; justify-content: center; transition: background .18s; }
.bi-banner .swiper-button-prev:hover, .bi-banner .swiper-button-next:hover { background: var(--bi-pink); }
/* 用边框画箭头，不依赖 swiper-icons 字体：字体未生效时也不会露出 "prev/next" 文字 */
.bi-banner .swiper-button-prev::after, .bi-banner .swiper-button-next::after { content: ""; display: block; width: 10px; height: 10px; border-top: 2.5px solid currentColor; border-right: 2.5px solid currentColor; }
.bi-banner .swiper-button-prev::after { transform: rotate(-135deg); margin-left: 3px; }
.bi-banner .swiper-button-next::after { transform: rotate(45deg); margin-right: 3px; }
.bi-banner-none { height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; color: var(--bi-text-3); background: linear-gradient(135deg, #fff5f8, #eef6fd); }
.bi-banner-none b { font-size: 20px; color: var(--bi-pink); letter-spacing: 1px; }
.bi-banner-none span { font-size: 12.5px; }

/* 会员面板 */
.bi-panel { background: #fff; border-radius: var(--bi-radius); box-shadow: var(--bi-shadow); overflow: hidden; }
.bi-panel-top { display: flex; align-items: center; gap: 12px; padding: 16px; background: linear-gradient(120deg, #ffeaf1 0%, #fff6fa 60%, #eaf6fd 100%); }
.bi-panel-hi { min-width: 0; }
.bi-panel-hi b { display: block; font-size: 15px; color: var(--bi-text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bi-panel-hi span { display: block; font-size: 12px; color: var(--bi-text-2); margin-top: 2px; }
.bi-vip { display: inline-block; margin-top: 4px; padding: 1px 8px; border-radius: 9px; font-size: 11.5px; color: #fff; background: linear-gradient(90deg, #fb7299, #ff9db8); }

.bi-stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; padding: 12px 8px; border-bottom: 1px solid var(--bi-line); }
.bi-stat { display: block; text-align: center; padding: 6px 0; border-radius: 4px; transition: background .18s; }
.bi-stat b { display: block; font-size: 17px; color: var(--bi-text); font-weight: 600; }
.bi-stat span { display: block; font-size: 11.5px; color: var(--bi-text-3); margin-top: 2px; }
.bi-stat:hover { background: var(--bi-pink-soft); }
.bi-stat:hover b { color: var(--bi-pink); }

.bi-balance { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--bi-line); font-size: 12.5px; color: var(--bi-text-2); }
.bi-balance em { font-style: normal; font-size: 17px; font-weight: 700; color: var(--bi-pink); }
.bi-balance a { margin-left: auto; padding: 3px 12px; border: 1px solid var(--bi-pink); border-radius: 12px; color: var(--bi-pink); font-size: 12px; }
.bi-balance a:hover { background: var(--bi-pink); color: #fff; }

.bi-quick { padding: 10px 16px; border-bottom: 1px solid var(--bi-line); }
.bi-quick a { display: flex; align-items: baseline; gap: 8px; padding: 5px 0; font-size: 13px; }
.bi-quick a em { font-style: normal; color: var(--bi-text); font-weight: 600; }
.bi-quick a i { font-style: normal; font-size: 12px; color: var(--bi-text-3); }
.bi-quick a:hover em, .bi-quick a:hover i { color: var(--bi-pink); }

.bi-entries { display: grid; grid-template-columns: repeat(4, 1fr); padding: 10px 0 14px; }
.bi-entries a { display: flex; flex-direction: column; align-items: center; gap: 5px; padding: 8px 0; font-size: 12px; color: var(--bi-text-2); border-radius: 4px; }
.bi-entries svg { width: 22px; height: 22px; color: var(--bi-text-2); transition: color .18s, transform .18s; }
.bi-entries a:hover { color: var(--bi-pink); }
.bi-entries a:hover svg { color: var(--bi-pink); transform: translateY(-2px); }

.bi-login-buts { display: flex; gap: 10px; padding: 14px 16px; border-bottom: 1px solid var(--bi-line); }
.bi-login-buts a { flex: 1; height: 34px; }

/* ============ 分区商品区 ============ */
.bi-sec { margin: 18px 0 28px; }
.bi-sec-head { display: flex; align-items: center; margin-bottom: 12px; }
.bi-sec-head h2 { display: flex; align-items: center; margin: 0; font-size: 19px; font-weight: 700; color: var(--bi-text); }
.bi-sec-bar { width: 4px; height: 18px; margin-right: 9px; border-radius: 2px; background: var(--bi-pink); }
.bi-sec-more { margin-left: auto; display: inline-flex; align-items: center; font-size: 13px; color: var(--bi-text-3); }
.bi-sec-more:hover { color: var(--bi-pink); }
.bi-sec-more svg { width: 14px; height: 14px; }

/* 一级分类胶囊 */
.bi-pills { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.bi-pill { display: flex; align-items: center; gap: 8px; padding: 6px 14px 6px 6px; background: #fff; border: 1px solid transparent; border-radius: 20px; font-size: 13.5px; color: var(--bi-text); box-shadow: var(--bi-shadow); transition: all .18s; }
.bi-pill img { width: 26px; height: 26px; border-radius: 50%; object-fit: cover; background: var(--bi-bg); }
.bi-pill:hover { border-color: var(--bi-pink); color: var(--bi-pink); transform: translateY(-1px); }
.bi-pill.on { background: var(--bi-pink); color: #fff; border-color: var(--bi-pink); }

/* 二级标签 + 排序 */
.bi-subtabs { display: flex; flex-wrap: wrap; gap: 4px 18px; margin-bottom: 8px; }
.bi-subtab { position: relative; padding: 4px 0; font-size: 13.5px; color: var(--bi-text-2); }
.bi-subtab::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; border-radius: 1px; background: var(--bi-pink); transform: scaleX(0); transition: transform .2s; }
.bi-subtab:hover { color: var(--bi-pink); }
.bi-subtab.on { color: var(--bi-pink); font-weight: 600; }
.bi-subtab.on::after { transform: scaleX(1); }

.bi-sorts { display: flex; gap: 8px; margin-bottom: 14px; }
.bi-sort { padding: 3px 14px; border-radius: 14px; background: #fff; font-size: 12.5px; color: var(--bi-text-2); box-shadow: var(--bi-shadow); }
.bi-sort:hover { color: var(--bi-pink); }
.bi-sort.on { background: var(--bi-pink-soft); color: var(--bi-pink); font-weight: 600; }

/* 商品卡片网格（电商卡片式：白底圆角卡 + 封面 + 两行标题 + 元信息 + 价格/下单） */
.bi-cards { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.bi-card { display: block; background: #fff; border-radius: 10px; overflow: hidden; box-shadow: var(--bi-shadow); transition: transform .22s, box-shadow .22s; }
.bi-card:hover { transform: translateY(-4px); box-shadow: 0 10px 26px rgba(251, 114, 153, .18); }

.bi-cover { position: relative; display: block; aspect-ratio: 4 / 3; background: var(--bi-bg); overflow: hidden; }
.bi-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.bi-card:hover .bi-cover img { transform: scale(1.06); }
.bi-cover-mask { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(24, 25, 28, .55); color: #fff; font-size: 14px; letter-spacing: 2px; }
.bi-cover-sales { position: absolute; left: 0; right: 0; bottom: 0; display: flex; align-items: center; gap: 4px; padding: 14px 8px 5px; font-size: 11.5px; color: #fff; background: linear-gradient(transparent, rgba(0, 0, 0, .5)); }
.bi-cover-sales svg { width: 13px; height: 13px; }

.bi-card-body { display: block; padding: 9px 11px 0; }
.bi-card-title { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 38px; font-size: 14px; line-height: 1.36; color: var(--bi-text); transition: color .18s; }
.bi-card:hover .bi-card-title { color: var(--bi-pink); }

.bi-card-meta { display: flex; align-items: center; gap: 10px; margin-top: 5px; font-size: 11.5px; color: var(--bi-text-3); }
.bi-up { display: inline-flex; align-items: center; gap: 5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bi-up-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--bi-pink); flex: 0 0 auto; }
.bi-dan { margin-left: auto; display: inline-flex; align-items: center; gap: 4px; flex: 0 0 auto; }
.bi-dan svg { width: 12px; height: 12px; }

.bi-card-foot { display: flex; align-items: center; gap: 8px; margin-top: 8px; padding-bottom: 2px; }
.bi-price { font-size: 16px; font-weight: 700; color: var(--bi-pink); white-space: nowrap; }
.bi-price i { font-style: normal; font-size: 11px; margin-right: 1px; }
.bi-buy { margin-left: auto; padding: 3px 11px; border-radius: 13px; background: var(--bi-pink-soft); color: var(--bi-pink); font-size: 12px; font-weight: 600; white-space: nowrap; transition: all .18s; }
.bi-card:hover .bi-buy { background: var(--bi-pink); color: #fff; }

/* 空态 / 加载更多 */
.bi-empty { padding: 46px 0; text-align: center; color: var(--bi-text-3); font-size: 13.5px; background: #fff; border-radius: var(--bi-radius); box-shadow: var(--bi-shadow); }
.bi-empty-tv { display: block; width: 56px; margin: 0 auto 12px; color: #d8dade; }
.bi-empty-tv svg { width: 100%; height: auto; }

.bi-more { margin-top: 18px; text-align: center; }
.bi-more-btn { display: inline-block; padding: 7px 34px; border: 1px solid var(--bi-line); border-radius: 18px; background: #fff; font-size: 13px; color: var(--bi-text-2); transition: all .2s; }
.bi-more-btn:hover { border-color: var(--bi-pink); color: var(--bi-pink); }
.bi-more-end { font-size: 12.5px; color: var(--bi-text-3); }

/* 局部刷新时的过渡 */
.bi-loading { opacity: .5; pointer-events: none; }

/* ============ 升级会员弹窗 ============ */
.bi-modal { position: fixed; inset: 0; z-index: 200; display: none; }
.bi-modal.on { display: block; }
.bi-modal-mask { position: absolute; inset: 0; background: rgba(0, 0, 0, .45); }
.bi-modal-box { position: relative; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 520px; max-width: calc(100vw - 32px); max-height: 82vh; display: flex; flex-direction: column; background: #fff; border-radius: 10px; overflow: hidden; box-shadow: 0 12px 40px rgba(0, 0, 0, .2); }
.bi-modal-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; background: linear-gradient(90deg, #fb7299, #ff9db8); color: #fff; font-size: 15.5px; font-weight: 600; flex: 0 0 auto; }
.bi-modal-x { border: 0; background: none; color: #fff; font-size: 24px; line-height: 1; padding: 0 4px; }
.bi-modal-body { padding: 16px 18px 18px; overflow: auto; }

.bi-lv-bar { display: flex; align-items: center; justify-content: space-between; padding: 8px 12px; border-radius: 6px; background: var(--bi-bg); font-size: 12.5px; color: var(--bi-text-2); margin-bottom: 12px; }
.bi-lv-bar b { color: var(--bi-pink); }
.bi-lv-bar em { font-style: normal; color: var(--bi-text); font-weight: 600; }
.bi-lv-none { padding: 26px 0; text-align: center; color: var(--bi-text-3); }
.bi-lv-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.bi-lv-card { display: block; cursor: pointer; }
.bi-lv-card input { position: absolute; opacity: 0; pointer-events: none; }
.bi-lv-in { display: block; padding: 12px 14px; border: 1px solid var(--bi-line); border-radius: 8px; transition: all .18s; }
.bi-lv-card input:checked + .bi-lv-in { border-color: var(--bi-pink); background: var(--bi-pink-soft); box-shadow: 0 0 0 1px var(--bi-pink) inset; }
.bi-lv-top { display: flex; align-items: baseline; justify-content: space-between; }
.bi-lv-top b { font-size: 15px; color: var(--bi-text); }
.bi-lv-top i { font-style: normal; font-size: 16px; font-weight: 700; color: var(--bi-pink); }
.bi-lv-pay { display: block; margin-top: 4px; font-size: 12.5px; color: var(--bi-text-2); }
.bi-lv-pay em { font-style: normal; color: var(--bi-pink); font-weight: 600; }
.bi-lv-desc { display: block; margin-top: 6px; font-size: 11.5px; line-height: 1.7; color: var(--bi-text-3); }
.bi-lv-ok { display: inline-block; margin: 2px 4px 0 0; padding: 0 6px; border-radius: 3px; background: #fff; color: var(--bi-pink); font-size: 11px; }
.bi-lv-tip { margin-top: 12px; font-size: 11.5px; line-height: 1.7; color: var(--bi-text-3); }
.bi-lv-foot { display: flex; gap: 10px; margin-top: 14px; }
.bi-lv-cancel, .bi-lv-submit { flex: 1; height: 38px; border-radius: 19px; font-size: 14px; border: 1px solid var(--bi-line); background: #fff; color: var(--bi-text-2); }
.bi-lv-submit { border-color: var(--bi-pink); background: var(--bi-pink); color: #fff; font-weight: 600; }
.bi-lv-submit:hover { background: var(--bi-pink-dark); border-color: var(--bi-pink-dark); }

/* ============ 站点特色条 ============ */
.bi-feature { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 20px; }
.bi-feature li { display: flex; align-items: center; gap: 10px; padding: 14px 16px; background: #fff; border-radius: var(--bi-radius); box-shadow: var(--bi-shadow); font-size: 14.5px; font-weight: 600; color: var(--bi-text); }
.bi-feature li em { font-style: normal; margin-left: auto; font-size: 12px; font-weight: 400; color: var(--bi-text-3); text-align: right; }
.bi-feature .fi { display: inline-flex; }
.bi-feature .fi svg { width: 26px; height: 26px; }

/* ============ 底部 ============ */
.bi-footer { background: #fff; border-top: 1px solid var(--bi-line); }
.bi-footer-in { display: flex; align-items: center; gap: 40px; padding-top: 24px; padding-bottom: 20px; flex-wrap: wrap; }
.bi-footer-brand { display: flex; align-items: center; gap: 12px; }
.bi-footer-name { font-size: 17px; font-weight: 700; color: var(--bi-pink); }
.bi-footer-sub { font-size: 12px; color: var(--bi-text-3); }
.bi-footer-links { display: flex; flex-wrap: wrap; gap: 6px 22px; margin-left: auto; font-size: 13px; color: var(--bi-text-2); }
.bi-footer-links a:hover { color: var(--bi-pink); }
.bi-footer-bar { border-top: 1px solid var(--bi-line); padding: 12px 0; font-size: 12.5px; color: var(--bi-text-3); }
.bi-footer-bar a { color: var(--bi-text-3); }
.bi-footer-bar a:hover { color: var(--bi-pink); }

/* 右侧悬浮 */
.bi-float { position: fixed; right: 14px; bottom: 60px; z-index: 80; display: flex; flex-direction: column; gap: 8px; }
.bi-float a, .bi-float button { width: 46px; padding: 8px 0 6px; display: flex; flex-direction: column; align-items: center; gap: 2px; border: 1px solid var(--bi-line); border-radius: 8px; background: #fff; color: var(--bi-text-2); font-size: 11px; box-shadow: var(--bi-shadow); transition: all .18s; }
.bi-float svg { width: 20px; height: 20px; }
.bi-float a:hover, .bi-float button:hover { color: var(--bi-pink); border-color: var(--bi-pink); }
.bi-float .bi-f-main { background: var(--bi-pink); border-color: var(--bi-pink); color: #fff; }
.bi-float .bi-f-main:hover { background: var(--bi-pink-dark); color: #fff; }

/* ============ 响应式 ============ */
@media (max-width: 1200px) {
    .bi-cards { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 980px) {
    .bi-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .bi-hero { grid-template-columns: minmax(0, 1fr); }
    .bi-panel { order: -1; }
    .bi-nav { display: none; }
    .bi-feature { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .bi-feature li em { display: none; }
}
@media (max-width: 700px) {
    .bi-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .bi-banner { height: 200px; min-height: 200px; }
    .bi-banner .swiper-slide a, .bi-banner img { height: 100%; }
    .bi-head-in { height: 56px; gap: 12px; }
    .bi-search { max-width: none; }
    .bi-lv-list { grid-template-columns: minmax(0, 1fr); }
    .bi-float { right: 8px; bottom: 24px; }
}
@media (max-width: 460px) {
    .bi-stats { grid-template-columns: repeat(3, 1fr); }
    .bi-entries { grid-template-columns: repeat(4, 1fr); }
    .bi-btn-line, .bi-btn-pink { padding: 0 12px; }
}