/* ============================================================
   全站样式。改颜色只需要改下面 :root 里的几个值。
   ============================================================ */

:root {
  --paper:  #F6F7F4;   /* 背景:冷纸色 */
  --ink:    #24292B;   /* 正文:墨 */
  --dai:    #2F4858;   /* 主色:黛蓝 */
  --mist:   #DCE0DA;   /* 分隔线:雾灰 */
  --moss:   #5C7263;   /* 辅助:苔绿(可用状态) */
  --faint:  #75808552; /* 极淡的辅助文字 */
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, "PingFang SC", "Source Han Sans SC",
               "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.95;
  letter-spacing: 0.02em;
}

.wrap { max-width: 620px; margin: 0 auto; padding: 0 22px 80px; }

/* ---------- 头部 ---------- */
header { padding: 56px 0 8px; }
.site-name {
  font-size: 30px; font-weight: 700; letter-spacing: 0.12em;
  color: var(--dai);
}
.site-flag {
  display: inline-block; font-size: 12px; color: var(--paper);
  background: var(--dai); border-radius: 3px;
  padding: 1px 8px; margin-left: 10px; vertical-align: middle;
  letter-spacing: 0.15em;
}
.tagline { margin-top: 10px; color: var(--ink); opacity: .75; font-size: 15px; }

/* 竖排引言:签名元素之一 */
.vertical-note {
  writing-mode: vertical-rl; float: right;
  font-size: 13px; letter-spacing: 0.35em; color: var(--dai);
  border-left: 1px solid var(--mist); padding-left: 12px;
  margin: 8px 0 16px 18px; height: 11em; opacity: .85;
}

h2 {
  font-size: 19px; font-weight: 700; letter-spacing: 0.1em;
  color: var(--dai); margin: 56px 0 14px;
}
h2 .en { font-size: 12px; font-weight: 400; letter-spacing: .2em; opacity: .45; margin-left: 10px; }

p.note { font-size: 14px; opacity: .7; margin-bottom: 18px; }

/* ---------- 首页:主线之路(签名元素) ---------- */
.path { position: relative; margin: 26px 0 10px; padding-left: 34px; }
.path::before {
  content: ""; position: absolute; left: 10px; top: 8px; bottom: 8px;
  width: 1px; background: var(--mist);
}
.stop { position: relative; padding: 14px 0; }
.stop::before {
  content: ""; position: absolute; left: -30px; top: 24px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--paper); border: 2px solid var(--dai);
}
.stop.open::before { background: var(--moss); border-color: var(--moss); }
.stop a, .stop span.dead {
  display: block; text-decoration: none; color: var(--ink);
  border: 1px solid var(--mist); border-radius: 6px;
  padding: 12px 16px; background: #fff;
}
.stop a:active { background: #eef1ec; }
.stop .t { font-weight: 700; letter-spacing: .06em; }
.stop .d { font-size: 13px; opacity: .65; margin-top: 2px; }
.stop .badge {
  float: right; font-size: 12px; color: var(--moss);
  border: 1px solid var(--moss); border-radius: 3px; padding: 0 6px;
}
.stop .badge.soon { color: var(--ink); opacity: .4; border-color: var(--mist); }

/* ---------- 多选卡片 ---------- */
.group-title { font-size: 14px; color: var(--dai); letter-spacing: .15em; margin: 26px 0 8px; font-weight: 700; }
.opt {
  border: 1px solid var(--mist); background: #fff; border-radius: 6px;
  padding: 11px 15px; margin: 8px 0; font-size: 15px; line-height: 1.8;
  cursor: pointer; user-select: none; -webkit-tap-highlight-color: transparent;
  transition: border-color .15s, background .15s;
}
.opt.on { border-color: var(--dai); background: #ECF0EE; box-shadow: inset 3px 0 0 var(--dai); }

.crisis-block {
  border: 1px solid var(--dai); border-radius: 6px;
  background: #E9EDEA; padding: 16px 18px; margin: 22px 0;
  font-size: 14.5px; line-height: 2;
}
.echo {
  margin: 22px 0 6px; padding: 16px 18px;
  border-left: 3px solid var(--dai); background: #fff;
  font-size: 15px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block; border: none; cursor: pointer;
  background: var(--dai); color: #fff; font-size: 16px;
  padding: 12px 28px; border-radius: 6px; letter-spacing: .15em;
  text-decoration: none; font-family: inherit;
}
.btn:disabled { opacity: .35; cursor: default; }
.btn.ghost { background: transparent; color: var(--dai); border: 1px solid var(--dai); }
.btn.small { font-size: 13px; padding: 7px 16px; }
.btnrow { margin: 26px 0; display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 问卷 ---------- */
.progress { font-size: 13px; color: var(--dai); letter-spacing: .2em; margin: 40px 0 6px; }
.q-text { font-size: 18px; line-height: 2; min-height: 5.5em; margin: 14px 0 26px; }
.answers .opt { text-align: center; font-size: 16px; padding: 13px; }
.backlink { font-size: 13px; opacity: .55; cursor: pointer; margin-top: 26px; display: inline-block; }

.rank-card { position: relative; padding-right: 56px; }
.rank-card .num {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  width: 26px; height: 26px; border-radius: 50%; text-align: center;
  line-height: 26px; font-size: 14px; background: var(--dai); color: #fff;
}
.rank-card .cd { font-size: 13px; opacity: .6; }

/* ---------- 结果页 ---------- */
.result h3 { font-size: 16px; color: var(--dai); margin: 30px 0 6px; letter-spacing: .1em; }
.result h3 .rank { font-size: 12px; opacity: .6; margin-right: 8px; }
.opening { font-size: 16.5px; border-left: 3px solid var(--dai); padding-left: 16px; margin: 24px 0; }
.tip { background: #fff; border: 1px solid var(--mist); border-radius: 6px; padding: 13px 16px; margin: 10px 0; font-size: 14.5px; }

/* ---------- 页脚 ---------- */
footer {
  margin-top: 70px; padding-top: 22px; border-top: 1px solid var(--mist);
  font-size: 13px; line-height: 2; opacity: .7;
}
footer .clear { color: var(--dai); cursor: pointer; text-decoration: underline; }

a:focus-visible, .opt:focus-visible, .btn:focus-visible { outline: 2px solid var(--dai); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}