/* ============================================
   merchants.css — 包印网商城 入驻商家列表 / 商家详情
   列表：面包屑 → 统计+搜索条 → 横向长条商家列表（每行一家）→ 入驻流程四步条
        （上一版是「全宽大 Hero + 三列宫格卡」）
   详情：面包屑 → 两栏（左 sticky 商家资料卡 + 右在售商品）
        （上一版是「大 banner + 悬浮信息卡 + 通栏网格」）
   配色：品牌墨蓝 #04539F + 亮蓝 #198DFB + 阳光橙 #F5871F + 暖纸白底 #F6F4F0
   类名前缀：by_m_ （商品卡片复用 app.css 的 .by_pcard）
   ============================================ */

.by_m_page { background: var(--by-paper); padding-bottom: 50px; }
.by_m_in { max-width: 1300px; margin: 0 auto; padding: 0 20px; }

/* 面包屑 */
.by_m_crumb_bar { background: #fff; border-bottom: 1px solid var(--by-line); }
.by_m_crumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; height: 46px; font-size: 13px; color: var(--by-ink-3); }
.by_m_crumb a { color: var(--by-ink-2); transition: color .18s; }
.by_m_crumb a:hover { color: var(--by-blue); }
.by_m_crumb .sep { color: var(--by-line); }
.by_m_crumb .cur { color: var(--by-blue-deep); font-weight: 600; }

/* ============================================
   列表页 ① 统计 + 搜索条
   ============================================ */
.by_m_bar { display: flex; align-items: center; justify-content: space-between; gap: 22px; flex-wrap: wrap; background: #fff; border: 1px solid var(--by-line); border-left: 4px solid var(--by-orange); border-radius: var(--by-radius); padding: 20px 24px; margin-top: 20px; }
.by_m_bar_tx { min-width: 0; }
.by_m_bar_tx h1 { font-size: 24px; font-weight: 800; color: var(--by-navy); letter-spacing: .5px; }
.by_m_bar_tx p { margin-top: 7px; font-size: 13px; color: var(--by-ink-2); }
.by_m_bar_nums { display: flex; align-items: center; gap: 0; flex-shrink: 0; }
.by_m_bar_num { padding: 0 22px; text-align: center; position: relative; }
.by_m_bar_num + .by_m_bar_num::before { content: ''; position: absolute; left: 0; top: 4px; bottom: 4px; width: 1px; background: var(--by-line); }
.by_m_bar_num b { display: block; font-size: 22px; font-weight: 900; color: var(--by-orange-deep); line-height: 1; }
.by_m_bar_num span { display: block; margin-top: 6px; font-size: 12px; color: var(--by-ink-3); }

.by_m_search { flex: 0 0 auto; display: flex; align-items: stretch; height: 42px; width: 330px; max-width: 100%; border: 2px solid var(--by-blue); border-radius: var(--by-radius); overflow: hidden; background: #fff; }
.by_m_search input { flex: 1; border: none; outline: none; background: transparent; padding: 0 10px 0 16px; font-size: 13.5px; color: var(--by-ink); font-family: inherit; min-width: 0; }
.by_m_search input::placeholder { color: var(--by-ink-3); }
.by_m_search button { flex-shrink: 0; padding: 0 22px; border: none; cursor: pointer; background: var(--by-grad-orange); color: #fff; font-size: 14px; font-weight: 700; transition: filter .2s; }
.by_m_search button:hover { filter: brightness(1.07); }

.by_m_filter { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 12px; font-size: 12.5px; color: var(--by-ink-3); }
.by_m_filter a { display: inline-flex; align-items: center; gap: 5px; color: var(--by-blue); }
.by_m_filter a:hover { color: var(--by-orange-deep); }

/* ============================================
   列表页 ② 横向长条商家列表
   ============================================ */
.by_m_list { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }
.by_m_row { display: grid; grid-template-columns: 82px 1fr auto auto; gap: 20px; align-items: center; background: #fff; border: 1px solid var(--by-line); border-radius: var(--by-radius); padding: 20px 24px; transition: all .2s; }
.by_m_row:hover { border-color: var(--by-blue); box-shadow: var(--by-shadow); transform: translateY(-2px); }

.by_m_logo { width: 82px; height: 82px; border-radius: var(--by-radius); overflow: hidden; background: var(--by-blue-tint); color: var(--by-blue-deep); display: flex; align-items: center; justify-content: center; font-size: 32px; font-weight: 800; }
.by_m_logo img { width: 100%; height: 100%; object-fit: cover; }

.by_m_body { min-width: 0; }
.by_m_name { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; font-size: 17px; font-weight: 700; color: var(--by-navy); }
.by_m_badge { display: inline-flex; align-items: center; gap: 4px; height: 21px; padding: 0 9px; border-radius: var(--by-radius-sm); background: #EAF7EF; color: #1F9D55; font-size: 11px; font-weight: 600; }
.by_m_badge_dark { background: var(--by-orange-tint); color: var(--by-orange-deep); }
.by_m_desc { margin-top: 8px; font-size: 13px; line-height: 1.75; color: var(--by-ink-2); }
.by_m_meta { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 18px; margin-top: 10px; font-size: 12px; color: var(--by-ink-3); }
.by_m_meta span { display: inline-flex; align-items: center; gap: 6px; }
.by_m_meta i { color: var(--by-blue); }

.by_m_nums { display: flex; align-items: center; flex-shrink: 0; }
.by_m_num { padding: 0 20px; text-align: center; position: relative; }
.by_m_num + .by_m_num::before { content: ''; position: absolute; left: 0; top: 2px; bottom: 2px; width: 1px; background: var(--by-line-soft); }
.by_m_num b { display: block; font-size: 19px; font-weight: 800; color: var(--by-navy); line-height: 1; }
.by_m_num span { display: block; margin-top: 6px; font-size: 11.5px; color: var(--by-ink-3); }

.by_m_go { flex-shrink: 0; display: inline-flex; align-items: center; gap: 7px; height: 40px; padding: 0 22px; border: 1px solid var(--by-line); border-radius: var(--by-radius); font-size: 13.5px; font-weight: 600; color: var(--by-ink-2); transition: all .18s; }
.by_m_row:hover .by_m_go { background: var(--by-grad-blue); border-color: transparent; color: #fff; }

/* 入驻 CTA 长条 */
.by_m_row_join { background: var(--by-blue-tint); border-style: dashed; border-color: var(--by-blue-soft); }
.by_m_row_join .by_m_logo { background: #fff; color: var(--by-orange); }
.by_m_row_join:hover { border-color: var(--by-orange); background: var(--by-orange-tint); }
.by_m_row_join:hover .by_m_go { background: var(--by-grad-orange); }

/* ============================================
   列表页 ③ 入驻流程四步
   ============================================ */
.by_m_steps { margin-top: 30px; background: #fff; border: 1px solid var(--by-line); border-radius: var(--by-radius-lg); padding: 26px; }
.by_m_steps_hd { display: flex; align-items: center; gap: 12px; font-size: 19px; font-weight: 800; color: var(--by-navy); margin-bottom: 22px; letter-spacing: .5px; }
.by_m_steps_hd::before { content: ''; width: 5px; height: 20px; border-radius: 3px; background: var(--by-grad-orange); }
.by_m_steps_grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.by_m_step { position: relative; background: var(--by-paper); border: 1px solid var(--by-line); border-radius: var(--by-radius); padding: 20px 18px; }
.by_m_step_no { position: absolute; top: 12px; right: 16px; font-size: 32px; font-weight: 900; font-style: italic; color: var(--by-paper-3); line-height: 1; }
.by_m_step_ic { position: relative; z-index: 1; width: 40px; height: 40px; border-radius: var(--by-radius); background: var(--by-grad-blue); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 17px; }
.by_m_step strong { position: relative; z-index: 1; display: block; margin-top: 13px; font-size: 15px; font-weight: 700; color: var(--by-ink); }
.by_m_step p { position: relative; z-index: 1; margin-top: 7px; font-size: 12.5px; line-height: 1.8; color: var(--by-ink-3); }

/* 空态 */
.by_m_empty { background: #fff; border: 1px dashed var(--by-line); border-radius: var(--by-radius); padding: 66px 24px; text-align: center; margin-top: 16px; }
.by_m_empty_ic { width: 72px; height: 72px; margin: 0 auto; border-radius: 50%; background: var(--by-paper); color: var(--by-line); display: flex; align-items: center; justify-content: center; font-size: 30px; }
.by_m_empty h3 { font-size: 17px; font-weight: 700; color: var(--by-ink); margin-top: 18px; }
.by_m_empty p { font-size: 13px; color: var(--by-ink-3); margin-top: 8px; }
.by_m_empty_btns { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.by_m_btn { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 20px; border: 1px solid var(--by-line); border-radius: var(--by-radius); background: #fff; font-size: 13.5px; font-weight: 600; color: var(--by-ink-2); transition: all .18s; }
.by_m_btn:hover { border-color: var(--by-blue); color: var(--by-blue); }
.by_m_btn_primary { background: var(--by-grad-orange); border-color: transparent; color: #fff; }
.by_m_btn_primary:hover { filter: brightness(1.08); color: #fff; }

/* ============================================
   详情页 —— 两栏
   ============================================ */
.by_m_wrap { display: grid; grid-template-columns: 300px 1fr; gap: 20px; align-items: start; padding-top: 20px; }

/* 左：商家资料卡 */
.by_m_side { position: sticky; top: 68px; display: flex; flex-direction: column; gap: 14px; }
.by_m_prof { background: #fff; border: 1px solid var(--by-line); border-radius: var(--by-radius-lg); overflow: hidden; }
.by_m_prof_top { background: var(--by-grad-navy); padding: 24px 20px 20px; text-align: center; position: relative; }
.by_m_prof_top::after { content: ''; position: absolute; inset: 0; background: radial-gradient(circle at 85% 110%, rgba(245,135,31,.32) 0%, transparent 52%); }
.by_m_prof_logo { position: relative; z-index: 1; width: 82px; height: 82px; margin: 0 auto; border-radius: var(--by-radius); overflow: hidden; background: #fff; color: var(--by-blue-deep); display: flex; align-items: center; justify-content: center; font-size: 32px; font-weight: 800; box-shadow: 0 6px 18px rgba(6,32,64,.3); }
.by_m_prof_logo img { width: 100%; height: 100%; object-fit: cover; }
.by_m_prof_name { position: relative; z-index: 1; margin-top: 14px; font-size: 18px; font-weight: 800; color: #fff; line-height: 1.4; }
.by_m_prof_badge { position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 5px; margin-top: 10px; height: 24px; padding: 0 12px; border-radius: var(--by-radius-sm); background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.26); color: #fff; font-size: 11.5px; font-weight: 600; }

.by_m_prof_nums { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: 1px solid var(--by-line-soft); }
.by_m_prof_num { padding: 16px 4px; text-align: center; position: relative; }
.by_m_prof_num + .by_m_prof_num::before { content: ''; position: absolute; left: 0; top: 20%; bottom: 20%; width: 1px; background: var(--by-line-soft); }
.by_m_prof_num b { display: block; font-size: 18px; font-weight: 900; color: var(--by-orange-deep); line-height: 1; }
.by_m_prof_num span { display: block; margin-top: 6px; font-size: 11.5px; color: var(--by-ink-3); }

.by_m_prof_rows { padding: 6px 18px 14px; }
.by_m_prof_row { display: flex; align-items: flex-start; gap: 10px; padding: 11px 0; border-bottom: 1px dashed var(--by-line-soft); font-size: 12.5px; line-height: 1.8; color: var(--by-ink-2); }
.by_m_prof_row:last-child { border-bottom: none; }
.by_m_prof_row > i { width: 15px; text-align: center; color: var(--by-blue); margin-top: 4px; flex-shrink: 0; }
.by_m_prof_row b { font-weight: 600; color: var(--by-ink); }
.by_m_prof_btns { display: flex; flex-direction: column; gap: 9px; padding: 0 18px 18px; }
.by_m_prof_btns .by_m_btn { justify-content: center; }

.by_m_about { background: #fff; border: 1px solid var(--by-line); border-radius: var(--by-radius); padding: 18px; }
.by_m_about_hd { display: flex; align-items: center; gap: 8px; font-size: 14.5px; font-weight: 700; color: var(--by-navy); padding-bottom: 12px; margin-bottom: 12px; border-bottom: 1px solid var(--by-line-soft); }
.by_m_about_hd i { color: var(--by-orange); }
.by_m_about_body { font-size: 12.5px; line-height: 2; color: var(--by-ink-2); }

.by_m_tip { background: var(--by-orange-tint); border: 1px solid var(--by-orange-soft); border-left: 3px solid var(--by-orange); border-radius: var(--by-radius); padding: 14px 16px; font-size: 12px; line-height: 1.9; color: var(--by-ink-2); }
.by_m_tip strong { display: block; color: var(--by-orange-deep); font-size: 13px; margin-bottom: 5px; }

/* 右：在售商品 */
.by_m_main { min-width: 0; }
.by_m_sec { background: #fff; border: 1px solid var(--by-line); border-radius: var(--by-radius-lg); padding: 22px 24px; }
.by_m_sec_hd { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-bottom: 14px; margin-bottom: 18px; border-bottom: 1px solid var(--by-line); }
.by_m_sec_hd h2 { display: flex; align-items: center; gap: 12px; font-size: 19px; font-weight: 800; color: var(--by-navy); letter-spacing: .5px; }
.by_m_sec_hd h2::before { content: ''; width: 5px; height: 20px; border-radius: 3px; background: var(--by-grad-orange); }
.by_m_sec_count { font-size: 12.5px; color: var(--by-ink-3); }
.by_m_sec_count strong { color: var(--by-orange-deep); font-size: 15px; font-weight: 800; margin: 0 2px; }
.by_m_grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1200px) {
    .by_m_wrap { grid-template-columns: 270px 1fr; }
    .by_m_grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 992px) {
    .by_m_bar { padding: 16px 18px; }
    .by_m_row { grid-template-columns: 64px 1fr; gap: 14px; padding: 16px; }
    .by_m_logo { width: 64px; height: 64px; font-size: 24px; }
    .by_m_nums { grid-column: 1 / -1; justify-content: flex-start; padding-top: 12px; border-top: 1px dashed var(--by-line); }
    .by_m_num:first-child { padding-left: 0; }
    .by_m_go { grid-column: 1 / -1; justify-content: center; }
    .by_m_steps_grid { grid-template-columns: repeat(2, 1fr); }
    .by_m_wrap { grid-template-columns: 1fr; }
    .by_m_side { position: static; }
    .by_m_grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .by_m_in { padding: 0 14px; }
    .by_m_bar_tx h1 { font-size: 19px; }
    .by_m_bar_nums { width: 100%; justify-content: space-between; }
    .by_m_bar_num { flex: 1; padding: 0 8px; }
    .by_m_search { width: 100%; }
    .by_m_steps { padding: 18px 16px; }
    .by_m_steps_hd { font-size: 17px; }
    .by_m_sec { padding: 18px 16px; }
    .by_m_sec_hd h2 { font-size: 17px; }
    .by_m_grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .by_m_desc { display: none; }
}