/* 外规通 · 标准助手（内测） —— 白底 + 深绿 + 网格纸 */
:root {
  --green: #2d4a3b;
  --green-deep: #1e3329;
  --green-soft: #eaf0ec;
  --ink: #1d2a23;
  --muted: #66766c;
  --line: rgba(45, 74, 59, .14);
  --paper: #fbfaf7;
  --card: #ffffff;
  --amber: #9a6400;
  --amber-bg: #fff6e6;
  --amber-line: #eed9b0;
  --shadow: 0 10px 30px rgba(30, 51, 41, .07);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(45, 74, 59, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 74, 59, .045) 1px, transparent 1px);
  background-size: 28px 28px;
  font-size: 16px;
  line-height: 1.6;
}

/* ---------- 顶栏 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 30;
  background: var(--green);
  color: #fff;
  box-shadow: 0 2px 10px rgba(30, 51, 41, .18);
}
.header-inner {
  max-width: 960px; margin: 0 auto; padding: 0 18px;
  height: 56px; display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: #fff; color: var(--green);
  font-weight: 800; display: inline-flex; align-items: center; justify-content: center;
  font-size: 16px; letter-spacing: 0;
}
.brand-name { font-size: 18px; font-weight: 800; letter-spacing: .02em; }
.brand-sub { font-size: 12px; opacity: .72; margin-left: 2px; }
.header-right { display: flex; align-items: center; gap: 16px; font-size: 13px; }
.conn { display: inline-flex; align-items: center; gap: 6px; opacity: .85; }
.conn i { width: 8px; height: 8px; border-radius: 50%; background: #d9b13b; display: inline-block; }
.conn.ok i { background: #7fd08a; }
.conn.bad i { background: #e08d7c; }
.contact-link { color: #fff; text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.4); }
.contact-link:hover { border-bottom-color: #fff; }

/* ---------- 主体 ---------- */
.shell { max-width: 960px; margin: 0 auto; padding: 34px 18px 170px; }

.hero { padding: 26px 0 8px; }
.hero h1 {
  font-size: clamp(26px, 4.4vw, 36px);
  line-height: 1.28; margin: 0 0 12px; letter-spacing: -.01em; font-weight: 800;
}
.hero-sub { color: var(--muted); font-size: 15px; margin: 0 0 22px; max-width: 660px; }
.hero-sub b { color: var(--green-deep); }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  font: inherit; font-size: 14px; cursor: pointer;
  background: var(--card); color: var(--ink);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 9px 16px; box-shadow: 0 2px 6px rgba(30,51,41,.04);
  transition: transform .12s ease, border-color .12s ease, color .12s ease;
}
.chip:hover { border-color: var(--green); color: var(--green-deep); transform: translateY(-1px); }
.hero-note { margin-top: 18px; color: var(--muted); font-size: 13px; }
.hero-note code {
  background: var(--green-soft); color: var(--green-deep);
  padding: 2px 7px; border-radius: 6px; font-size: 12.5px;
}

/* ---------- 消息 ---------- */
.messages { display: flex; flex-direction: column; gap: 22px; margin-top: 26px; }
.msg { animation: rise .22s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.msg.user { display: flex; justify-content: flex-end; }
.msg.user .bubble {
  background: var(--green); color: #fff;
  border-radius: 16px 16px 4px 16px;
  padding: 11px 16px; max-width: 78%;
  font-size: 15px; box-shadow: var(--shadow);
  white-space: pre-wrap; word-break: break-word;
}

.msg.assistant { display: flex; gap: 12px; align-items: flex-start; }
.avatar {
  flex: 0 0 auto; width: 34px; height: 34px; border-radius: 10px;
  background: var(--green); color: #fff; font-weight: 800; font-size: 15px;
  display: inline-flex; align-items: center; justify-content: center; margin-top: 2px;
}
.msg.assistant .bubble {
  flex: 1; min-width: 0;
  background: var(--card); border: 1px solid var(--line);
  border-radius: 4px 16px 16px 16px;
  padding: 16px 18px; box-shadow: var(--shadow);
}

.market-banner {
  background: var(--amber-bg); border: 1px solid var(--amber-line); color: var(--amber);
  border-radius: 10px; padding: 9px 12px; font-size: 13px; margin-bottom: 13px;
}

.block + .block { margin-top: 14px; padding-top: 13px; border-top: 1px dashed var(--line); }
.block h3 {
  margin: 0 0 9px; font-size: 12.5px; letter-spacing: .06em;
  color: var(--muted); font-weight: 700;
}
.block h3 .n { color: var(--green-deep); }

.std-list { list-style: none; margin: 0; padding: 0; }
.std-list li {
  display: grid; grid-template-columns: minmax(0, max-content) 1fr; gap: 2px 12px;
  padding: 9px 0; border-bottom: 1px solid rgba(45, 74, 59, .08);
}
.std-list li:last-child { border-bottom: 0; }
.std-main { display: flex; align-items: baseline; gap: 9px; flex-wrap: wrap; }
.std-code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-weight: 700; font-size: 14.5px; color: var(--green-deep);
  letter-spacing: .01em; white-space: nowrap;
}
.std-name { font-size: 14.5px; color: var(--ink); }
.std-note { grid-column: 1 / -1; font-size: 12.5px; color: var(--muted); margin-top: 3px; }
.std-side { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

.pill {
  font-size: 11.5px; padding: 2px 8px; border-radius: 999px;
  white-space: nowrap; border: 1px solid transparent;
}
.pill.current { background: var(--green-soft); color: var(--green-deep); border-color: rgba(45,74,59,.18); }
.pill.upcoming { background: var(--amber-bg); color: var(--amber); border-color: var(--amber-line); }
.pill.deprecated { background: #f2f1ee; color: #8a8a82; border-color: #e4e3de; }
.pill.pending { background: #fff; color: var(--muted); border: 1px dashed var(--line); }
.pill.force { background: #fdeeee; color: #a4392e; border-color: #f2cfc9; }

.stream { font-size: 15px; line-height: 1.8; white-space: pre-wrap; word-break: break-word; }
.stream b { color: var(--green-deep); }
.cursor {
  display: inline-block; width: 8px; height: 15px; margin-left: 2px;
  background: var(--green); vertical-align: -2px; border-radius: 2px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.note-line {
  margin-top: 10px; font-size: 13px; color: var(--amber);
  background: var(--amber-bg); border: 1px solid var(--amber-line);
  border-radius: 8px; padding: 8px 11px;
}

.answer-footer {
  margin-top: 14px; padding-top: 11px; border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.disclaimer { font-size: 12px; color: var(--muted); }
.cta-btn {
  font: inherit; font-size: 13.5px; font-weight: 700; cursor: pointer;
  color: var(--green-deep); background: var(--green-soft);
  border: 1px solid rgba(45,74,59,.25); border-radius: 10px; padding: 8px 16px;
}
.cta-btn:hover { background: #dfe9e2; }

.followups { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.followup {
  font: inherit; font-size: 13.5px; cursor: pointer;
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: 7px 14px; color: var(--green-deep);
}
.followup:hover { border-color: var(--green); }

.msg.error .bubble { border-color: #eccfc8; background: #fff7f5; color: #8c3a2d; }

/* ---------- 输入区 ---------- */
.composer {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  background: rgba(251, 250, 247, .94);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--line);
}
.composer-tools {
  max-width: 960px; margin: 0 auto; padding: 9px 18px 0;
  display: flex; gap: 7px; overflow-x: auto; scrollbar-width: none;
}
.composer-tools::-webkit-scrollbar { display: none; }
.tool-btn {
  flex: 0 0 auto; font: inherit; font-size: 12.5px; font-weight: 700; cursor: pointer;
  color: var(--green-deep); background: transparent;
  border: 1px solid var(--line); border-radius: 999px; padding: 5px 11px;
  transition: background .12s ease, border-color .12s ease;
}
.tool-btn:hover, .tool-btn.active {
  background: var(--green-soft); border-color: rgba(45, 74, 59, .32);
}
.composer-inner { max-width: 960px; margin: 0 auto; padding: 13px 18px 6px; display: flex; gap: 10px; align-items: flex-end; }
.composer textarea {
  flex: 1; resize: none; font: inherit; font-size: 15px; line-height: 1.5;
  color: var(--ink); background: #fff;
  border: 1px solid var(--line); border-radius: 12px;
  padding: 11px 14px; max-height: 132px; outline: none;
  transition: border-color .12s ease, box-shadow .12s ease;
}
.composer textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(45,74,59,.12); }
.send-btn {
  font: inherit; font-size: 15px; font-weight: 700; cursor: pointer;
  background: var(--green); color: #fff; border: 0; border-radius: 12px;
  padding: 11px 22px; transition: background .12s ease, opacity .12s ease;
}
.send-btn:hover { background: var(--green-deep); }
.send-btn:disabled { opacity: .45; cursor: default; }
.composer-note { max-width: 960px; margin: 0 auto; padding: 2px 18px 9px; font-size: 11.5px; color: var(--muted); }

/* ---------- 弹窗 ---------- */
.modal { position: fixed; inset: 0; z-index: 60; display: flex; align-items: center; justify-content: center; }
.modal[hidden] { display: none; }
.modal-mask { position: absolute; inset: 0; background: rgba(20, 30, 24, .45); }
.modal-card {
  position: relative; background: #fff; border-radius: 16px; padding: 24px;
  width: min(360px, 88vw); text-align: center; box-shadow: 0 24px 60px rgba(0,0,0,.22);
}
.modal-card h3 { margin: 0 0 8px; font-size: 18px; }
.modal-card p { margin: 0 0 14px; font-size: 13.5px; color: var(--muted); }
.modal-card .qr { width: 200px; height: 200px; object-fit: contain; border: 1px solid var(--line); border-radius: 10px; }
.modal-close {
  margin-top: 16px; font: inherit; font-size: 14px; cursor: pointer;
  background: var(--green-soft); color: var(--green-deep);
  border: 1px solid rgba(45,74,59,.2); border-radius: 10px; padding: 8px 22px;
}

/* 本轮处理方式：让用户看得见“查库 / 直接回答 / 先问清楚” */
.route-line {
  display: inline-flex; align-items: center; gap: 6px;
  margin-bottom: 9px; font-size: 11.5px; font-weight: 700;
  color: var(--muted); letter-spacing: .02em;
}
.route-line::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--green); opacity: .7;
}
.route-line.retrieve { color: var(--green-deep); }
.route-line.retrieve::before { background: var(--amber); }

/* ---------- 移动端 ---------- */
@media (max-width: 640px) {
  .brand-sub { display: none; }
  .shell { padding: 22px 14px 190px; }
  .hero h1 { font-size: 24px; }
  .msg.user .bubble { max-width: 88%; }
  .msg.assistant { gap: 9px; }
  .msg.assistant .bubble { padding: 13px 14px; }
  .composer-inner { padding: 11px 14px 5px; }
  .composer-tools { padding: 8px 14px 0; }
  .composer-note { padding: 2px 14px 8px; }
}

/* 窄屏兜底：长标签不撑破容器 */
.chip, .followup { max-width: 100%; }

/* 首页高频问题：静态文字链接（爬虫要走得进来，不能只放 JS 按钮） */
.qa-links { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 8px 18px; }
.qa-links a {
  color: var(--green-deep); text-decoration: none; font-size: 14px; line-height: 1.6;
  border-bottom: 1px dashed rgba(45,74,59,.28); padding: 4px 0;
}
.qa-links a:hover { border-bottom-style: solid; }
@media (max-width: 640px) {
  .chip, .followup { white-space: normal; text-align: left; }
}

/* ---------- 首页：落地区（问之前看到的引导内容） ---------- */
.landing { margin-top: 38px; display: flex; flex-direction: column; gap: 34px; }
.landing-title { font-size: 17px; font-weight: 800; margin: 0 0 13px; }
.landing-title span { font-size: 12.5px; color: var(--muted); font-weight: 400; margin-left: 8px; }
body.chatting #landing { display: none; }
body.chatting #hero { display: none; }
body.chatting .messages { margin-top: 4px; }

.lib-note { color: var(--muted); font-size: 13px; margin-top: 10px; }
.lib-note a { color: var(--green-deep); }

.country-wall { display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr)); gap: 10px; }
.country-tile {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 13px 8px; font-size: 14.5px; font-weight: 600; color: #9aa69e; text-align: center;
}
.country-tile i { font-style: normal; font-size: 11px; font-weight: 400; color: #b3bcb5; }
.country-tile.on {
  color: var(--green-deep); border-color: rgba(45,74,59,.42); background: #fff;
  box-shadow: var(--shadow); text-decoration: none;
}
.country-tile.on i { color: var(--green); font-weight: 700; }
.country-tile.on:hover { transform: translateY(-1px); }

.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }
.cat-card {
  display: flex; flex-direction: column; gap: 4px; text-decoration: none; color: var(--ink);
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 15px 18px; box-shadow: 0 2px 8px rgba(30,51,41,.04);
  transition: border-color .12s ease, transform .12s ease;
}
.cat-card b { font-size: 15.5px; color: var(--green-deep); }
.cat-card span { font-size: 12.5px; color: var(--muted); }
.cat-card:hover { border-color: var(--green); transform: translateY(-1px); }

.ics-main {
  display: flex; flex-direction: column; gap: 3px; text-decoration: none;
  background: var(--green); color: #fff; border-radius: 14px; padding: 18px 20px;
}
.ics-main b { font-size: 19px; }
.ics-main span { font-size: 13px; opacity: .85; }
.ics-main:hover { background: var(--green-deep); }
.ics-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.ics-chip {
  font-size: 13px; color: var(--ink); background: var(--card);
  border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px;
}
.ics-chip em { font-style: normal; color: var(--muted); font-size: 12px; margin-left: 6px; }

.big-ask {
  display: inline-block; background: var(--green); color: #fff; text-decoration: none;
  font-weight: 700; border-radius: 12px; padding: 12px 22px; font-size: 15px;
}
.big-ask:hover { background: var(--green-deep); }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.step {
  display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 13px 15px;
}
.step b {
  flex: 0 0 auto; width: 24px; height: 24px; border-radius: 50%;
  background: var(--green); color: #fff; font-size: 13px;
  display: inline-flex; align-items: center; justify-content: center;
}
@media (max-width: 640px) {
  .steps { grid-template-columns: 1fr; }
  .landing { gap: 28px; }
  /* 手机上的国家墙别占两屏：改成横向滑一条，中国第一个 */
  .country-wall {
    display: flex; gap: 10px; overflow-x: auto;
    padding-bottom: 6px; scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
  }
  .country-tile { flex: 0 0 88px; padding: 10px 6px; font-size: 13.5px; scroll-snap-align: start; }
}