/* ============ 基础 ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --navy: #0b2545;
  --navy-2: #13315c;
  --blue: #1d6fd6;
  --blue-bright: #2f8af5;
  --cyan: #58c4dd;
  --ink: #1c2733;
  --gray: #61707f;
  --line: #e3e9f0;
  --bg: #f5f8fb;
  --card: #ffffff;
  --ok: #0f9d58;
  --bad: #d93025;
  --warn-bg: #fff6e5;
  --warn-ink: #8a5a00;
  --radius: 14px;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ============ 顶栏 ============ */
header {
  background: var(--navy);
  color: #fff;
  padding: 14px 0;
}
header .wrap { display: flex; align-items: center; gap: 10px; }
.logo { font-size: 20px; font-weight: 700; letter-spacing: .5px; }
.logo .dot { color: var(--cyan); }
.tagline { font-size: 13px; opacity: .75; margin-left: 6px; }

/* ============ Hero ============ */
.hero {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 55%, #1b4a8a 100%);
  color: #fff;
  padding: 56px 0 72px;
}
.hero h1 { font-size: 34px; font-weight: 700; margin-bottom: 10px; }
.hero p.sub { font-size: 16px; opacity: .85; margin-bottom: 34px; }
.hero p.sub b { color: var(--cyan); }

.search-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 26px 26px 20px;
  box-shadow: 0 12px 40px rgba(4, 20, 45, .35);
  color: var(--ink);
}

.input-row { display: flex; gap: 0; }
#track-input {
  flex: 1;
  font-size: 22px;
  font-family: "SF Mono", Consolas, monospace;
  letter-spacing: 2px;
  padding: 14px 18px;
  border: 2px solid var(--line);
  border-radius: 10px;
  outline: none;
  text-transform: uppercase;
  transition: border-color .15s;
}
#track-input:focus { border-color: var(--blue-bright); }
#track-input::placeholder { letter-spacing: 0; font-family: inherit; font-size: 16px; color: #9aa8b5; }

/* 箱号结构示意 */
.anatomy {
  display: flex; align-items: flex-end; gap: 14px;
  margin-top: 16px; flex-wrap: wrap;
}
.seg { text-align: center; }
.seg-code {
  font-family: "SF Mono", Consolas, monospace;
  font-size: 18px; font-weight: 700; letter-spacing: 3px;
  padding: 4px 10px; border-radius: 8px; display: block;
}
.seg-label { font-size: 11px; color: var(--gray); margin-top: 4px; display: block; }
.seg-owner .seg-code { background: #e3f0ff; color: #1155aa; }
.seg-cat .seg-code { background: #efe6ff; color: #6a3bbf; }
.seg-serial .seg-code { background: #e4f7ec; color: #0c7a44; }
.seg-check .seg-code { background: #ffefe0; color: #b45a00; }

.samples { margin-top: 14px; font-size: 13px; color: var(--gray); }
.samples .chip {
  display: inline-block; cursor: pointer;
  font-family: Consolas, monospace;
  background: #eef3f8; border: 1px solid var(--line);
  border-radius: 20px; padding: 2px 12px; margin: 2px 4px 2px 0;
  transition: all .15s;
}
.samples .chip:hover { background: var(--blue); color: #fff; border-color: var(--blue); }

/* ============ 识别结果 ============ */
.result { margin-top: 18px; }
.result.hidden { display: none; }

.check { font-size: 14px; font-weight: 600; margin-bottom: 10px; }
.check.ok { color: var(--ok); }
.check.bad { color: var(--bad); }

.hit {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  background: #f2f8ff;
  border: 1px solid #cfe3fb;
  border-radius: 10px;
  padding: 14px 18px;
}
.hit-leasing { background: var(--warn-bg); border-color: #f4dcae; }
.hit-name { font-size: 18px; font-weight: 700; }
.hit-en { font-weight: 400; color: var(--gray); font-size: 15px; }
.hit-meta { font-size: 13px; color: var(--gray); margin-top: 2px; }

.badge {
  font-size: 11px; font-weight: 600; border-radius: 4px;
  padding: 1px 8px; vertical-align: 2px;
}
.badge-carrier { background: #dcefdd; color: #19713c; }
.badge-leasing { background: #ffe1c2; color: #9c5000; }

.btn {
  cursor: pointer; border: none; border-radius: 9px;
  font-size: 15px; font-weight: 600; padding: 11px 22px;
  transition: all .15s;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-bright); transform: translateY(-1px); }
.btn-ghost {
  background: #fff; color: var(--blue);
  border: 1.5px solid var(--blue); padding: 8px 18px;
}
.btn-ghost:hover { background: var(--blue); color: #fff; }

.note { font-size: 13px; color: var(--gray); margin-top: 12px; }
.note.warn {
  background: var(--warn-bg); color: var(--warn-ink);
  padding: 10px 14px; border-radius: 8px;
}

.manual-pick { margin-top: 12px; }
.manual-pick label { font-size: 13px; color: var(--gray); }
.manual-row { display: flex; gap: 10px; margin-top: 6px; }
#manual-select {
  flex: 1; padding: 9px 12px; font-size: 14px;
  border: 1.5px solid var(--line); border-radius: 8px; background: #fff;
}
.agg-links { font-size: 12px; color: var(--gray); margin-top: 8px; }

/* ============ 区块通用 ============ */
section { padding: 56px 0; }
section h2 { font-size: 24px; margin-bottom: 6px; }
section p.desc { color: var(--gray); font-size: 14px; margin-bottom: 26px; }
section.alt { background: #fff; }

/* ============ 船公司目录 ============ */
#carrier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}
.dir-card {
  display: block; background: var(--card);
  border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 16px; color: var(--ink);
  transition: all .15s;
}
.dir-card:hover {
  text-decoration: none;
  border-color: var(--blue-bright);
  box-shadow: 0 6px 18px rgba(29, 111, 214, .12);
  transform: translateY(-2px);
}
.dir-name { font-weight: 700; font-size: 15px; }
.dir-en { font-size: 12px; color: var(--gray); margin: 2px 0 8px; }
.dir-prefix {
  font-family: Consolas, monospace; font-size: 12px;
  color: #1155aa; background: #eef5fd;
  border-radius: 5px; padding: 3px 8px; display: inline-block;
}
.dir-leasing .dir-prefix { color: #9c5000; background: #fdf3e4; }
.dir-divider {
  grid-column: 1 / -1;
  font-size: 13px; font-weight: 600; color: var(--warn-ink);
  margin-top: 10px;
}

/* ============ 箱型速查表 ============ */
.type-table { width: 100%; border-collapse: collapse; font-size: 14px; background: #fff; border-radius: 10px; overflow: hidden; }
.type-table th, .type-table td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--line); }
.type-table th { background: var(--navy); color: #fff; font-weight: 600; font-size: 13px; }
.type-table tr:last-child td { border-bottom: none; }
.type-table td.mono { font-family: Consolas, monospace; color: #1155aa; }
.table-scroll { overflow-x: auto; border-radius: 10px; border: 1px solid var(--line); }

/* ============ 原理说明 ============ */
.how-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.how-card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px;
}
.how-card .step {
  display: inline-block; width: 30px; height: 30px; line-height: 30px;
  text-align: center; border-radius: 50%;
  background: var(--blue); color: #fff; font-weight: 700; margin-bottom: 10px;
}
.how-card h3 { font-size: 16px; margin-bottom: 6px; }
.how-card p { font-size: 13px; color: var(--gray); }

/* ============ Toast / Footer ============ */
#toast {
  position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(20px);
  background: var(--navy); color: #fff;
  padding: 12px 24px; border-radius: 30px; font-size: 14px;
  opacity: 0; pointer-events: none; transition: all .25s;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .25);
  max-width: 90vw;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

footer {
  background: var(--navy); color: rgba(255, 255, 255, .65);
  font-size: 13px; padding: 26px 0; text-align: center;
}

/* ============ 落地页 ============ */
.hero-sub { padding: 36px 0 56px; }
.crumb { font-size: 13px; opacity: .8; margin-bottom: 14px; }
.crumb a { color: var(--cyan); }
.official-cta { display: inline-block; margin-top: 18px; text-decoration: none; }
.official-cta:hover { text-decoration: none; }

.article h2 { margin-top: 34px; }
.article h2:first-child { margin-top: 0; }
.article > p { color: var(--ink); font-size: 15px; max-width: 720px; }

.prefix-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.pfx {
  font-family: Consolas, monospace; font-size: 14px; font-weight: 600;
  background: #eef5fd; color: #1155aa;
  border: 1px solid #d5e5f7; border-radius: 6px; padding: 4px 12px;
}
.bl-note { margin-top: 14px; font-size: 14px; color: var(--gray); }

.faq {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 10px; padding: 14px 18px; margin-bottom: 10px;
}
.faq summary { font-weight: 600; font-size: 15px; cursor: pointer; }
.faq p { margin-top: 10px; font-size: 14px; color: var(--gray); }

.other-links { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 14px; }
.other-links a { white-space: nowrap; }

@media (max-width: 560px) {
  .hero h1 { font-size: 25px; }
  #track-input { font-size: 17px; letter-spacing: 1px; }
  .hit { flex-direction: column; align-items: flex-start; }
  .hit .btn { width: 100%; }
}