/* ================================================================
   物业缴费网页版 · 移动端样式
   设计基调：类原生应用观感 —— 浅底、卡片、圆角、底部固定操作条
   ================================================================ */

:root {
  --green: #0e8a5f;
  --green-2: #12a46b;
  --green-d: #0a6b4a;
  --green-soft: #e8f5ef;
  --ink: #16241f;
  --ink-2: #5b6e68;
  --ink-3: #8d9e98;
  --bg: #f2f6f4;
  --card: #ffffff;
  --line: #e2eae6;
  --danger: #d93b2b;
  --amber: #c8801a;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 60, 42, .04), 0 6px 20px rgba(16, 60, 42, .05);
  --safe-b: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body { padding-bottom: calc(64px + var(--safe-b)); }

/* 桌面端给个手机宽度，避免拉得过宽 */
.shell {
  max-width: 480px; margin: 0 auto; min-height: 100vh;
  background: var(--bg); position: relative;
}

/* ---------------- 顶部导航 ---------------- */
.nav {
  position: sticky; top: 0; z-index: 30;
  background: linear-gradient(135deg, var(--green-d), var(--green-2));
  color: #fff; padding: 14px 16px 16px;
  display: flex; align-items: center; gap: 10px;
  border-radius: 0 0 18px 18px;
  box-shadow: 0 4px 18px rgba(10, 107, 74, .18);
}
.nav .back {
  width: 30px; height: 30px; flex: 0 0 30px; border: 0; border-radius: 50%;
  background: rgba(255, 255, 255, .16); color: #fff; font-size: 17px;
  line-height: 1; cursor: pointer; display: none;
}
.nav .back.show { display: block; }
.nav .titles { flex: 1; min-width: 0; }
.nav h1 { margin: 0; font-size: 17px; font-weight: 600; letter-spacing: .2px; }
.nav .sub { font-size: 12px; opacity: .82; margin-top: 2px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ---------------- 通用块 ---------------- */
main { padding: 14px 14px 8px; }
.page { display: none; }
.page.active { display: block; animation: fade .22s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.card {
  background: var(--card); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px; margin-bottom: 12px;
}
.card.tight { padding: 0; overflow: hidden; }

.sec-title {
  font-size: 13px; font-weight: 600; color: var(--ink-2);
  margin: 4px 2px 8px; display: flex; align-items: center; gap: 6px;
}
.sec-title::before {
  content: ""; width: 3px; height: 13px; border-radius: 2px; background: var(--green);
}

.notice {
  display: flex; gap: 8px; align-items: flex-start;
  background: #fff8e8; border: 1px solid #f2e3c2; color: #7a5a12;
  border-radius: 12px; padding: 10px 12px; font-size: 12.5px; margin-bottom: 12px;
}
.notice .ico { flex: 0 0 auto; }

/* ---------------- 缴费类别 ---------------- */
.cats { display: grid; gap: 10px; }
.cat {
  display: flex; align-items: center; gap: 12px;
  background: var(--card); border-radius: var(--radius); padding: 14px;
  box-shadow: var(--shadow); border: 1px solid transparent;
  cursor: pointer; transition: .16s;
}
.cat:active { transform: scale(.985); }
.cat .ic {
  width: 44px; height: 44px; flex: 0 0 44px; border-radius: 12px;
  display: grid; place-items: center; font-size: 21px;
  background: var(--green-soft); color: var(--green-d);
}
.cat .ic.c2 { background: #eef2ff; color: #3a4b9c; }
.cat .ic.c3 { background: #fff3e6; color: #b26a12; }
.cat .tx { flex: 1; min-width: 0; }
.cat .tx b { display: block; font-size: 15.5px; font-weight: 600; }
.cat .tx span { font-size: 12px; color: var(--ink-3); display: block;
  margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cat .go { color: var(--ink-3); font-size: 18px; }

/* ---------------- 表单 ---------------- */
.field { padding: 12px 0; border-bottom: 1px solid var(--line); }
.field:last-child { border-bottom: 0; }
.field > label {
  display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 6px; font-weight: 500;
}
.field .req::after { content: " *"; color: var(--danger); font-weight: 700; }
.field input, .field select, .field textarea {
  width: 100%; border: 0; outline: 0; background: transparent;
  font-size: 16px; color: var(--ink); padding: 2px 0; font-family: inherit;
}
.field input::placeholder, .field textarea::placeholder { color: #b6c3be; font-size: 15px; }
.field textarea { resize: none; min-height: 44px; line-height: 1.5; }
.field .tip { font-size: 11.5px; color: var(--ink-3); margin-top: 5px; }
.field .err { font-size: 11.5px; color: var(--danger); margin-top: 5px; display: none; }
.field.bad input, .field.bad textarea { color: var(--danger); }
.field.bad .err { display: block; }

.row2 { display: flex; gap: 10px; align-items: center; }
.row2 > * { flex: 1; min-width: 0; }
.arrow { flex: 0 0 auto; color: var(--ink-3); font-size: 13px; }

.chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 9px; }
.chip {
  border: 1px solid var(--line); background: #fbfdfc; color: var(--ink-2);
  border-radius: 999px; padding: 5px 12px; font-size: 12.5px; cursor: pointer;
}
.chip.on { background: var(--green-soft); border-color: #b8e0cd; color: var(--green-d); font-weight: 600; }
.chip.mini { padding: 3px 10px; font-size: 12px; }

/* 金额输入突出显示 */
.amount-field { display: flex; align-items: baseline; gap: 4px; }
.amount-field .cur { font-size: 20px; font-weight: 700; color: var(--green-d); }
.amount-field input {
  font-size: 28px; font-weight: 700; color: var(--green-d);
  letter-spacing: .5px; flex: 1;
}
.amount-field input::placeholder { font-weight: 400; font-size: 22px; color: #c6d3ce; }

.calc {
  margin-top: 10px; background: #f7fbf9; border: 1px dashed #cfe4da;
  border-radius: 10px; padding: 10px 12px; font-size: 12.5px; color: var(--ink-2);
}
.calc .formula { color: var(--ink-3); font-size: 12px; margin-top: 3px; }
.calc button {
  margin-top: 8px; border: 0; background: var(--green); color: #fff;
  border-radius: 8px; padding: 6px 14px; font-size: 12.5px; cursor: pointer; font-family: inherit;
}
.calc button:active { background: var(--green-d); }

/* ---------------- 按钮 ---------------- */
.btn {
  display: block; width: 100%; border: 0; border-radius: 12px;
  padding: 13px; font-size: 16px; font-weight: 600; cursor: pointer;
  font-family: inherit; transition: .15s;
}
.btn:active { transform: scale(.99); }
.btn.primary { background: linear-gradient(135deg, var(--green), var(--green-2)); color: #fff;
  box-shadow: 0 6px 16px rgba(14, 138, 95, .25); }
.btn.ghost { background: #fff; color: var(--green-d); border: 1px solid #cfe4da; }
.btn.plain { background: transparent; color: var(--ink-2); font-weight: 500; font-size: 14px; }
.btn[disabled] { opacity: .5; pointer-events: none; }
.btn-row { display: grid; gap: 9px; margin-top: 4px; }

/* ---------------- 底部操作条 / 标签栏 ---------------- */
.actionbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 25;
  max-width: 480px; margin: 0 auto;
  background: rgba(255, 255, 255, .96); backdrop-filter: blur(8px);
  border-top: 1px solid var(--line);
  padding: 10px 14px calc(10px + var(--safe-b));
  display: none;
}
.actionbar.show { display: block; }

.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 26;
  max-width: 480px; margin: 0 auto;
  background: rgba(255, 255, 255, .97); backdrop-filter: blur(8px);
  border-top: 1px solid var(--line);
  display: flex; padding: 6px 0 calc(6px + var(--safe-b));
}
.tabbar.hide { display: none; }
.tabbar button {
  flex: 1; border: 0; background: transparent; cursor: pointer;
  font-family: inherit; color: var(--ink-3); font-size: 11px;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
}
.tabbar button .ti { font-size: 19px; line-height: 1; }
.tabbar button.on { color: var(--green); font-weight: 600; }

/* ---------------- 确认页 ---------------- */
.payamt { text-align: center; padding: 6px 0 14px; }
.payamt .lbl { font-size: 13px; color: var(--ink-2); }
.payamt .num {
  font-size: 40px; font-weight: 700; color: var(--green-d); letter-spacing: .5px;
  margin-top: 4px; line-height: 1.15;
}
.payamt .num small { font-size: 20px; margin-right: 2px; }

.kv { font-size: 13.5px; }
.kv .r { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0;
  border-bottom: 1px dashed var(--line); }
.kv .r:last-child { border-bottom: 0; }
.kv .k { color: var(--ink-3); flex: 0 0 auto; }
.kv .v { color: var(--ink); text-align: right; word-break: break-all; font-weight: 500; }
.kv .v.strong { color: var(--green-d); font-weight: 700; }

/* ---------------- 二维码 ---------------- */
.qrbox { text-align: center; }
.qrbox .frame {
  display: inline-block; background: #fff; border-radius: 14px; padding: 12px;
  border: 1px solid var(--line); cursor: pointer;
}
.qrbox .frame img { display: block; width: 210px; height: 210px; object-fit: contain; }
.qrbox .hint { font-size: 12.5px; color: var(--ink-2); margin-top: 10px; line-height: 1.7; }
.qrbox .merchant { font-size: 12.5px; color: var(--ink-3); margin-top: 8px; }
.qrbox .merchant b { color: var(--ink-2); font-weight: 600; }
.payicons { display: flex; justify-content: center; gap: 10px; margin-top: 10px; }
.payicons span {
  font-size: 11.5px; color: var(--ink-2); border: 1px solid var(--line);
  border-radius: 999px; padding: 3px 10px; background: #fbfdfc;
}

/* 放大二维码的全屏层 */
.zoom {
  position: fixed; inset: 0; z-index: 60; background: rgba(8, 20, 16, .92);
  display: none; flex-direction: column; align-items: center; justify-content: center;
  padding: 24px; text-align: center;
}
.zoom.show { display: flex; }
.zoom img { width: min(84vw, 380px); height: auto; background: #fff; border-radius: 12px; padding: 14px; }
.zoom p { color: #dceee6; font-size: 13.5px; margin-top: 16px; line-height: 1.7; }
.zoom .close { margin-top: 18px; border: 1px solid rgba(255,255,255,.4); background: transparent;
  color: #fff; border-radius: 999px; padding: 8px 26px; font-size: 14px; font-family: inherit; cursor: pointer; }

/* ---------------- 完成页 ---------------- */
.done-hero { text-align: center; padding: 22px 16px; }
.done-hero .tick {
  width: 62px; height: 62px; margin: 0 auto 12px; border-radius: 50%;
  background: var(--green-soft); color: var(--green); font-size: 32px;
  display: grid; place-items: center;
}
.done-hero h2 { margin: 0; font-size: 18px; }
.done-hero p { margin: 6px 0 0; font-size: 13px; color: var(--ink-2); }

.orderno {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--green-soft); border-radius: 10px; padding: 11px 13px; margin-top: 4px;
}
.orderno b { font-size: 16px; letter-spacing: 1px; color: var(--green-d);
  font-family: ui-monospace, Menlo, Consolas, monospace; }
.orderno button {
  border: 1px solid #b8e0cd; background: #fff; color: var(--green-d);
  border-radius: 8px; padding: 5px 12px; font-size: 12.5px; cursor: pointer; font-family: inherit;
}

/* ---------------- 记录 ---------------- */
.rec {
  background: var(--card); border-radius: var(--radius); padding: 13px 14px;
  box-shadow: var(--shadow); margin-bottom: 10px;
}
.rec .top { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.rec .top b { font-size: 15px; }
.rec .top .amt { font-size: 17px; font-weight: 700; color: var(--green-d); }
.rec .meta { font-size: 12.5px; color: var(--ink-3); margin-top: 6px; line-height: 1.7; }
.rec .tags { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }
.tag {
  font-size: 11.5px; border-radius: 6px; padding: 2px 8px;
  background: var(--green-soft); color: var(--green-d);
}
.tag.gray { background: #f1f4f3; color: var(--ink-3); }
.tag.warn { background: #fff3e6; color: #b26a12; }
.tag.red { background: #fdecea; color: var(--danger); }

.empty { text-align: center; padding: 46px 20px; color: var(--ink-3); font-size: 13.5px; }
.empty .big { font-size: 40px; margin-bottom: 10px; opacity: .5; }

/* ---------------- 弹层 / 提示 ---------------- */
.toast {
  position: fixed; left: 50%; bottom: calc(96px + var(--safe-b)); transform: translateX(-50%) translateY(10px);
  background: rgba(20, 36, 30, .92); color: #fff; font-size: 13.5px;
  padding: 10px 18px; border-radius: 10px; z-index: 90; max-width: 84vw; text-align: center;
  opacity: 0; pointer-events: none; transition: .22s;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.sheet {
  position: fixed; inset: 0; z-index: 70; background: rgba(10, 22, 18, .45);
  display: none; align-items: flex-end;
}
.sheet.show { display: flex; }
.sheet .panel {
  width: 100%; max-width: 480px; margin: 0 auto; background: #fff;
  border-radius: 18px 18px 0 0; padding: 18px 16px calc(18px + var(--safe-b));
  animation: up .24s ease;
}
@keyframes up { from { transform: translateY(30px); } to { transform: none; } }
.sheet h3 { margin: 0 0 12px; font-size: 16px; }

.loading {
  display: inline-block; width: 15px; height: 15px; vertical-align: -2px;
  border: 2px solid rgba(255,255,255,.45); border-top-color: #fff;
  border-radius: 50%; animation: spin .7s linear infinite; margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.muted { color: var(--ink-3); font-size: 12.5px; }

/* 流程提示条：反复强调「最后一步点了提交才算登记成功」。
   踩过的坑：用户在付款页付完钱直接关掉页面，以为完事了，
   结果后台一条记录都没有 —— 必须在流程中间就把话说死。 */
.card.stepwarn {
  background: #fff8ea; border: 1px solid #f2ddb4;
  box-shadow: none; padding: 13px 15px; margin-bottom: 12px;
}
.card.stepwarn .stepwarn-t {
  font-size: 13.5px; font-weight: 700; color: var(--amber); margin-bottom: 5px;
}
.card.stepwarn .stepwarn-b {
  font-size: 13px; line-height: 1.72; color: #8a6420;
}
.card.stepwarn .stepwarn-b b { color: var(--amber); }

/* 桌面端：底部条不再固定，改用常规流，避免遮挡 */
@media (min-width: 700px) {
  body { background: #e9efec; }
  .shell { box-shadow: 0 0 40px rgba(16, 60, 42, .1); }
}