/* ==========================================================================
   求职助手 · 手机网页版（ASSIST：面试 / 笔试辅助）
   外壳 + 面板内容（assist-*）统一样式。
   设计令牌与官网 css/home.css 保持一致：暖白底 / 近黑主色 / 衬线标题 /
   发丝边框 / 2px 圆角 / 无渐变无发光。
   ========================================================================== */

:root {
  --bg:          #FAFAF8;
  --bg-alt:      #F4F3F0;
  --surface:     #FFFFFF;
  --ink:         #1A1A1A;
  --ink-soft:    #6B6B6B;
  --ink-ghost:   #9A9A9A;
  --hairline:    #E6E3DD;
  --hairline-strong: #CFC9BE;
  --accent:      #9B8B6E;
  --band:        #141414;
  --success:     #2D8B5A;
  --warning:     #B4553F;

  /* 语义状态色（连接/运行状态） */
  --state-idle:     var(--ink-ghost);
  --state-busy:     #B98A2E;
  --state-ok:       var(--success);
  --state-err:      var(--warning);

  /* 聚焦环 / 代码块 / 卡片阴影 */
  --focus-ring:     rgba(155, 139, 110, .18);
  --code-bg:        #F4F3F0;
  --shadow-card:    0 1px 2px rgba(26, 26, 26, .04);

  /* 布局节奏 */
  --card-pad:    16px;
  --card-gap:    12px;
  --card-radius: 2px;
  --font-mono:   ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  --font-display: "Songti SC","Noto Serif CJK SC",Georgia,serif;
  --font-body:    -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;

  --radius:      2px;
  --gutter:      16px;
  --transition:  200ms ease;
}

/* === Base === */
*, *::before, *::after { box-sizing: border-box; }

html {
  max-width: 100%;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  max-width: 100%;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

[hidden] { display: none !important; }

img, svg { max-width: 100%; }

button, input, select, textarea { font: inherit; color: inherit; }

/* === 顶栏 === */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(250, 250, 248, .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 720px;
  margin: 0 auto;
  padding: 12px var(--gutter);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.topbar-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: none;
  background: var(--band);
  border-radius: var(--radius);
  overflow: hidden;
}

.topbar-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.topbar-brand-text { min-width: 0; }

.topbar-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: .01em;
}

.topbar-subtitle {
  margin: 2px 0 0;
  font-size: 12px;
  line-height: 1.4;
  color: var(--ink-soft);
  letter-spacing: .02em;
}

.topbar-chip {
  flex: none;
  padding: 4px 8px;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: .04em;
  white-space: nowrap;
}

/* === 主区域 === */
.shell {
  flex: 1 1 auto;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: var(--gutter) var(--gutter) 32px;
}

/* === 登录提示 === */
.token-gate {
  margin: 0 0 var(--card-gap);
  padding: var(--card-pad);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-left: 2px solid var(--accent);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-card);
}

.token-gate-text {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  overflow-wrap: break-word;
}

/* === 按钮：近黑实心（主）/ 发丝描边（次）=== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 48px;
  padding: 12px 18px;
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  color: var(--surface);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}

.btn:active { background: var(--band); border-color: var(--band); }

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: .45;
  cursor: not-allowed;
}

.btn-outline {
  background: var(--surface);
  border-color: var(--hairline-strong);
  color: var(--ink);
}

.btn-outline:active {
  background: var(--bg-alt);
  border-color: var(--hairline-strong);
  color: var(--ink);
}

.btn[aria-pressed="true"],
.btn.armed {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--surface);
}

@media (hover: hover) {
  .btn:not(:disabled):not(.btn-outline):hover { background: #333; border-color: #333; }
  .btn-outline:not(:disabled):hover { background: var(--bg-alt); border-color: var(--hairline-strong); }
}

/* === Tab：分段控件 === */
.tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--bg-alt);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
}

.tab {
  flex: 1 1 0;
  min-width: 0;
  min-height: 44px;
  margin: 0;
  padding: 10px 8px;
  appearance: none;
  background: transparent;
  border: 0;
  border-radius: 1px;
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: .02em;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background-color var(--transition), color var(--transition), box-shadow var(--transition);
}

.tab.is-active,
.tab[aria-selected="true"] {
  background: var(--surface);
  color: var(--ink);
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(26, 26, 26, .06);
}

.tab:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* === 面板挂载点 === */
.panel {
  display: flex;
  flex-direction: column;
  gap: var(--card-gap);
  padding-top: var(--card-gap);
}

.panel:empty::after {
  display: block;
  padding: 48px var(--gutter);
  background: var(--surface);
  border: 1px dashed var(--hairline-strong);
  border-radius: var(--card-radius);
  text-align: center;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.8;
  content: "等待电脑端连接…";
}

#panel-interview:empty::after { content: "连接电脑端后，面试问答将显示在此"; }
#panel-exam:empty::after { content: "连接电脑端后，笔试内容将显示在此"; }

/* ==========================================================================
   面板内容（由 interview.js / exam.js 的 TEMPLATE 注入）
   ========================================================================== */

/* === 卡片 / 分区 === */
.assist-card,
.assist-block {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-card);
  padding: var(--card-pad);
}

.assist-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.assist-card-title,
.assist-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--ink);
}

.assist-card-title { flex: 1 1 auto; }

.assist-title { margin-bottom: 12px; }

.assist-title::before {
  content: "";
  width: 3px;
  height: 14px;
  flex: none;
  background: var(--accent);
  border-radius: 1px;
}

/* === 表单标签 / 输入框 === */
.assist-label {
  display: block;
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: .02em;
  color: var(--ink-soft);
}

.assist-input {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.4;
  transition: border-color var(--transition), background-color var(--transition), box-shadow var(--transition);
}

.assist-input::placeholder { color: var(--ink-ghost); }

.assist-input:focus {
  outline: none;
  background: var(--surface);
  border-color: var(--ink);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

/* 数字输入 + 单位后缀 */
.assist-field { margin-top: 14px; }

.assist-suffix {
  position: relative;
  display: flex;
  align-items: center;
}

.assist-suffix .assist-input { padding-right: 46px; }

.assist-suffix-unit {
  position: absolute;
  right: 14px;
  font-size: 13px;
  color: var(--ink-soft);
  pointer-events: none;
}

/* === 状态徽标 / 状态行 === */
.assist-status {
  display: inline-flex;
  align-items: flex-start;
  gap: 6px;
  flex: 0 1 auto;
  max-width: 70%;
  margin: 0;
  padding: 3px 8px;
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  color: var(--state-idle);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .02em;
  text-align: left;
  overflow-wrap: anywhere;
}

.assist-status::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--state-idle);
}

.assist-status[data-state="busy"] {
  color: var(--state-busy);
  border-color: rgba(185, 138, 46, .30);
  background: rgba(185, 138, 46, .06);
}

.assist-status[data-state="busy"]::before {
  background: var(--state-busy);
  animation: assist-pulse 1.4s ease-in-out infinite;
}

.assist-status[data-state="ok"] {
  color: var(--state-ok);
  border-color: rgba(45, 139, 90, .30);
  background: rgba(45, 139, 90, .06);
}

.assist-status[data-state="ok"]::before { background: var(--state-ok); }

.assist-status[data-state="error"] {
  color: var(--state-err);
  border-color: rgba(180, 85, 63, .30);
  background: rgba(180, 85, 63, .06);
}

.assist-status[data-state="error"]::before { background: var(--state-err); }

@keyframes assist-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}

.assist-remote {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0 0;
  padding: 9px 12px;
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
}

.assist-remote::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--state-idle);
}

.assist-remote[data-state="live"] {
  color: var(--state-ok);
  border-color: rgba(45, 139, 90, .28);
  background: rgba(45, 139, 90, .05);
}

.assist-remote[data-state="live"]::before { background: var(--state-ok); }

.assist-warmup {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 10px 0 0;
  padding: 9px 12px;
  background: rgba(185, 138, 46, .06);
  border: 1px solid rgba(185, 138, 46, .30);
  border-radius: var(--radius);
  color: var(--state-busy);
  font-size: 13px;
  line-height: 1.6;
}

.assist-warmup::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--state-busy);
  animation: assist-pulse 1.4s ease-in-out infinite;
}

/* === 操作按钮组 === */
.assist-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.assist-actions .btn { flex: 1 1 0; min-width: 0; }

.assist-tools {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.assist-tools .btn { flex: 1 1 0; min-width: 0; }

/* === 计费方式（单选）=== */
.assist-billing {
  margin: 14px 0 0;
  padding: 0;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
}

.assist-billing legend {
  padding: 0 6px;
  margin-left: 8px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--ink-soft);
}

.assist-billing label {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 14px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.assist-billing label + label { border-top: 1px solid var(--hairline); }

.assist-billing input[type="radio"] {
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  margin: 0;
  flex: none;
  appearance: none;
  -webkit-appearance: none;
  background: var(--surface);
  border: 1px solid var(--hairline-strong);
  border-radius: 50%;
  transition: border-color var(--transition);
}

.assist-billing input[type="radio"]::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink);
  transform: scale(0);
  transition: transform 160ms ease;
}

.assist-billing input[type="radio"]:checked { border-color: var(--ink); }
.assist-billing input[type="radio"]:checked::after { transform: scale(1); }

.assist-billing input[type="radio"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* 计费门禁提示（覆盖 .assist-block 的卡片观感）*/
#exam-billing-block {
  margin: 12px 0 0;
  padding: 10px 12px;
  background: rgba(180, 85, 63, .05);
  border: 1px solid rgba(180, 85, 63, .28);
  border-left-width: 2px;
  border-radius: var(--radius);
  box-shadow: none;
  color: var(--warning);
  font-size: 13px;
  line-height: 1.6;
  overflow-wrap: break-word;
}

/* === 开关（自动解答）=== */
.assist-toggle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 48px;
  padding: 10px 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.assist-toggle-input {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.assist-toggle-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.assist-toggle-name {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink);
}

.assist-toggle-desc {
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-soft);
}

.assist-toggle-track {
  position: relative;
  width: 44px;
  height: 26px;
  flex: none;
  background: var(--bg-alt);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius);
  transition: background-color var(--transition), border-color var(--transition);
}

.assist-toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: var(--surface);
  border: 1px solid var(--hairline-strong);
  border-radius: 1px;
  transition: transform 180ms ease, border-color var(--transition);
}

.assist-toggle-input:checked ~ .assist-toggle-track {
  background: var(--ink);
  border-color: var(--ink);
}

.assist-toggle-input:checked ~ .assist-toggle-track .assist-toggle-thumb {
  transform: translateX(18px);
  border-color: var(--ink);
}

.assist-toggle-input:focus-visible ~ .assist-toggle-track {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* === 问答正文 === */
.assist-text {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.assist-text pre {
  margin: 0 0 12px;
  padding: 12px 14px;
  max-width: 100%;
  background: var(--code-bg);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.assist-text code {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink);
  white-space: pre;
}

/* === Markdown 正文修饰（.assist-text--md） === */
.assist-text--md { white-space: normal; }
.assist-text--md p { margin: 0 0 10px; }
.assist-text--md h1, .assist-text--md h2, .assist-text--md h3 { margin: 14px 0 8px; line-height: 1.4; font-weight: 600; }
.assist-text--md h1 { font-size: 19px; }
.assist-text--md h2 { font-size: 17px; }
.assist-text--md h3 { font-size: 16px; }
.assist-text--md ul, .assist-text--md ol { margin: 0 0 10px; padding-left: 22px; }
.assist-text--md li { margin: 3px 0; }
.assist-text--md code { display: inline; padding: 1px 5px; border-radius: 4px; background: var(--code-bg); font-family: var(--font-mono); font-size: 13px; }
.assist-text--md pre { margin: 0 0 12px; padding: 12px 14px; border-radius: 8px; background: var(--code-bg); overflow-x: auto; }
.assist-text--md pre code { display: block; padding: 0; background: transparent; white-space: pre; }
.assist-text--md blockquote { margin: 0 0 10px; padding: 4px 12px; border-left: 3px solid var(--hairline); color: var(--ink-soft); }
.assist-text--md table { border-collapse: collapse; margin: 0 0 12px; width: 100%; }
.assist-text--md th, .assist-text--md td { border: 1px solid var(--hairline); padding: 6px 8px; text-align: left; }
.assist-text--md a { color: var(--accent); text-decoration: underline; }

/* === 截图预览 === */
.assist-preview {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 132px;
  padding: 20px 16px;
  background: var(--bg);
  border: 1px dashed var(--hairline-strong);
  border-radius: var(--radius);
  cursor: pointer;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
  transition: border-color var(--transition), background-color var(--transition);
}

.assist-preview:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.assist-preview:has(img) {
  min-height: 0;
  padding: 0;
  background: var(--band);
  border-style: solid;
  border-color: var(--hairline);
}

.assist-preview img {
  display: block;
  width: 100%;
  height: auto;
}

.assist-preview:has(img)::after {
  content: "全屏查看";
  position: absolute;
  right: 8px;
  bottom: 8px;
  padding: 3px 8px;
  background: rgba(20, 20, 20, .72);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--radius);
  color: #fff;
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: .04em;
  pointer-events: none;
}

.assist-placeholder {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
  text-align: center;
}

.assist-placeholder svg {
  width: 24px;
  height: 24px;
  color: var(--ink-ghost);
}

/* === HTTPS 提示条 === */
.https-hint {
  padding: 10px var(--gutter);
  background: rgba(180, 85, 63, .05);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  color: var(--warning);
  font-size: 13px;
  line-height: 1.6;
  overflow-wrap: break-word;
}

/* === 截图全屏遮罩 === */
.capture-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: rgba(20, 20, 20, .97);
  color: var(--surface);
  text-align: center;
}

.capture-fullscreen img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.capture-fullscreen-text {
  margin: 0;
  padding: 24px;
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.6;
  letter-spacing: .04em;
}

.capture-close {
  min-width: 64px;
  min-height: 44px;
  padding: 0 14px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .35);
  border-radius: var(--radius);
  color: var(--surface);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.4;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background-color var(--transition), border-color var(--transition);
}

.capture-close:active {
  background: rgba(255, 255, 255, .2);
  border-color: rgba(255, 255, 255, .6);
}

.capture-close:focus-visible {
  outline: 2px solid var(--surface);
  outline-offset: 2px;
}

/* === 安全区 === */
@supports (padding: env(safe-area-inset-top)) {
  .topbar-inner {
    padding-top: calc(12px + env(safe-area-inset-top));
  }

  body { padding-bottom: env(safe-area-inset-bottom); }

  .topbar-inner,
  .shell,
  .https-hint {
    padding-left: calc(var(--gutter) + env(safe-area-inset-left));
    padding-right: calc(var(--gutter) + env(safe-area-inset-right));
  }

  .capture-close {
    top: calc(12px + env(safe-area-inset-top)) !important;
    right: calc(12px + env(safe-area-inset-right)) !important;
  }
}

/* === 触控：保证最小点按尺寸 === */
@media (pointer: coarse) {
  .tab,
  .btn,
  button,
  [role="tab"] {
    min-height: 44px;
  }
}

/* === 窄屏（320px）不横向溢出 === */
@media (max-width: 360px) {
  :root { --gutter: 12px; --card-pad: 14px; }

  .topbar-title { font-size: 17px; }
  .topbar-chip { display: none; }
  .tab { font-size: 14px; }
  .token-gate-text { font-size: 13px; }
  .assist-status { max-width: 62%; font-size: 11px; }
  .assist-text { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}