:root {
  --bg: #f5f2ea;
  --card: #ffffff;
  --ink: #22302a;
  --muted: #66756c;
  --line: #e2ddd1;
  --green: #2f6b4f;
  --green-dark: #24513d;
  --green-soft: #e7f0ea;
  --amber: #8a5a12;
  --amber-soft: #fbf1dc;
  --red: #a13d33;
  --red-soft: #f8e7e3;
  --shadow: 0 10px 30px rgba(34, 48, 42, 0.07);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  font-size: 16px;
}

[hidden] {
  display: none !important;
}

h1,
h2,
h3,
p,
ul {
  margin: 0;
}

ul {
  padding-left: 1.2em;
}

.wrap {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}

.site-header {
  background: linear-gradient(135deg, #234c3a 0%, #2f6b4f 60%, #3d7a5c 100%);
  color: #fff;
  padding: 22px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #fff;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: block;
  flex: none;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  object-fit: contain;
  background: rgba(9, 38, 27, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.34);
}

.brand-text {
  font-size: 12.6px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-text span {
  margin-left: 6px;
  font-size: 10.5px;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 500;
}

.header-tag {
  flex: none;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: rgba(255, 255, 255, 0.88);
}

main {
  padding-top: 20px;
  padding-bottom: 28px;
}

.notice {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--amber-soft);
  color: var(--amber);
  border: 1px solid #ecd7ab;
  border-radius: 14px;
  padding: 14px 16px;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.notice strong {
  font-size: 0.95rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 16px;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

h2 {
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

h3 {
  font-size: 0.92rem;
  color: var(--green-dark);
  margin-bottom: 6px;
}

.muted {
  color: var(--muted);
  font-size: 0.82rem;
}

.drop-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 190px;
  padding: 24px 16px;
  border: 1.5px dashed #bfc9bd;
  border-radius: 14px;
  background: #fbfcfa;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.drop-zone:hover,
.drop-zone:focus-visible,
.drop-zone.is-dragover {
  border-color: var(--green);
  background: var(--green-soft);
  outline: none;
}

.drop-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green);
  font-size: 26px;
  line-height: 1;
}

.drop-title {
  font-weight: 600;
}

.drop-sub {
  color: var(--muted);
  font-size: 0.82rem;
}

.preview-wrap {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.preview-wrap img {
  width: 108px;
  height: 108px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #f0eee7;
}

.link-btn {
  border: 0;
  background: none;
  color: var(--green);
  font: inherit;
  font-size: 0.88rem;
  padding: 6px 2px;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.field {
  margin-top: 16px;
}

.field label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.field input:focus {
  border-color: var(--green);
  outline: 2px solid rgba(47, 107, 79, 0.16);
  outline-offset: 1px;
}

.field-hint {
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 6px;
}

.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 50px;
  margin-top: 18px;
  border-radius: 12px;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.primary-btn {
  background: var(--green);
  color: #fff;
}

.primary-btn:hover:not(:disabled) {
  background: var(--green-dark);
}

.primary-btn:disabled {
  background: #b9c5bd;
  cursor: not-allowed;
}

.secondary-btn {
  background: #fff;
  color: var(--green-dark);
  border-color: #bfcfc4;
  margin-top: 14px;
}

.secondary-btn:hover {
  background: var(--green-soft);
}

.status {
  min-height: 1.4em;
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.88rem;
}

.error {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--red-soft);
  color: var(--red);
  font-size: 0.88rem;
}

.result-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.badge {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 700;
}

.badge--match {
  background: var(--green-soft);
  color: var(--green-dark);
}

.badge--mismatch {
  background: var(--red-soft);
  color: var(--red);
}

.badge--unknown {
  background: #eef0ed;
  color: var(--muted);
}

progress {
  --bar-color: var(--green);
  --bar-track: #ece9df;
  width: 100%;
  height: 8px;
  border: 0;
  border-radius: 999px;
  overflow: hidden;
  background: var(--bar-track);
  -webkit-appearance: none;
  appearance: none;
}

progress::-webkit-progress-bar {
  background: var(--bar-track);
}

progress::-webkit-progress-value {
  background: var(--bar-color);
  border-radius: 999px;
}

progress::-moz-progress-bar {
  background: var(--bar-color);
  border-radius: 999px;
}

/* 只有“疑似符合”显示全绿；特征不符用醒目的红，无法判断用中性灰 */
.confidence-bar--match {
  --bar-color: var(--green);
  --bar-track: #e3ebe5;
}

.confidence-bar--mismatch {
  --bar-color: #d64541;
  --bar-track: var(--red-soft);
}

.confidence-bar--unknown {
  --bar-color: #9aa79e;
  --bar-track: #ececec;
}

/* 显式兜底：部分移动端浏览器对伪元素继承 CSS 变量的支持不一致 */
.confidence-bar--match::-webkit-progress-value {
  background: var(--green);
}

.confidence-bar--match::-moz-progress-bar {
  background: var(--green);
}

.confidence-bar--mismatch::-webkit-progress-bar {
  background: var(--red-soft);
}

.confidence-bar--mismatch::-webkit-progress-value {
  background: #d64541;
}

.confidence-bar--mismatch::-moz-progress-bar {
  background: #d64541;
}

.confidence-bar--unknown::-webkit-progress-value {
  background: #9aa79e;
}

.confidence-bar--unknown::-moz-progress-bar {
  background: #9aa79e;
}

.herb-guess {
  margin-top: 12px;
  font-size: 1.02rem;
  font-weight: 600;
}

.herb-guess .guess-label {
  font-weight: 600;
  color: var(--muted);
}

.herb-guess .guess-name {
  font-weight: 800;
  letter-spacing: 0.01em;
}

.herb-guess--match .guess-name {
  color: var(--green-dark);
}

.herb-guess--mismatch .guess-name {
  color: #c22f27;
}

.herb-guess--unknown {
  color: var(--muted);
}

.block {
  margin-top: 16px;
}

.block ul {
  color: #3c4a42;
  font-size: 0.92rem;
}

.block li + li {
  margin-top: 4px;
}

.advice {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #f7f8f4;
  border: 1px solid var(--line);
  font-size: 0.92rem;
}

.disclaimer-text {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.feedback {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
}

.feedback-label {
  white-space: nowrap;
}

/* 两个反馈按钮始终作为一组，空间不足时整组换行而不拆开 */
.feedback-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.chip-btn {
  border: 1px solid #bfcfc4;
  background: #fff;
  color: var(--green-dark);
  border-radius: 999px;
  padding: 6px 14px;
  font: inherit;
  font-size: 0.86rem;
  cursor: pointer;
}

.chip-btn:hover:not(:disabled) {
  background: var(--green-soft);
}

.chip-btn:disabled {
  opacity: 0.55;
  cursor: default;
}

.tips {
  color: #3c4a42;
  font-size: 0.92rem;
}

.tips li + li {
  margin-top: 8px;
}

.legal summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--green-dark);
  list-style-position: inside;
}

.legal-body {
  margin-top: 12px;
  color: #46544c;
  font-size: 0.88rem;
}

.legal-body p + p {
  margin-top: 8px;
}

.site-footer {
  padding: 8px 0 28px;
  color: #7a877e;
  font-size: 0.78rem;
  text-align: center;
}

@media (max-width: 480px) {
  .header-tag {
    display: none;
  }

  .card {
    padding: 16px;
    border-radius: 14px;
  }

  .drop-zone {
    min-height: 170px;
  }

  /* 手机端：反馈文案与两个按钮保持一行 */
  .feedback,
  .feedback-actions {
    gap: 8px;
  }

  .feedback-label {
    font-size: 0.8rem;
  }

  .chip-btn {
    padding: 5px 10px;
    font-size: 0.82rem;
  }
}

/* ---------- 首屏图文 + 站内工具入口条 ---------- */
.herb-hero {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 18px;
  align-items: center;
  padding: 20px 22px;
  margin-bottom: 16px;
  border: 1px solid #cfe8dc;
  border-radius: 18px;
  background: linear-gradient(135deg, #e8f5ee 0%, #d9f0e6 55%, #eefaf3 100%);
  box-shadow: 0 14px 34px rgba(15, 123, 95, 0.12);
}

.herb-hero::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(52, 211, 153, 0.28), transparent 70%);
  pointer-events: none;
}

.herb-hero-copy {
  position: relative;
  z-index: 1;
}

.herb-hero-eyebrow {
  margin: 0 0 6px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #0f7b5f;
}

.herb-hero-title {
  margin: 0 0 8px;
  font-size: 1.35rem;
  color: #134e3a;
  letter-spacing: 0.01em;
}

.herb-hero-sub {
  margin: 0 0 12px;
  max-width: 46ch;
  color: #3f5a4f;
  font-size: 0.92rem;
}

.herb-hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.herb-hero-points li {
  padding: 4px 10px;
  border: 1px solid #c6e4d6;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: #1f5c46;
  font-size: 0.8rem;
}

.herb-hero-art {
  position: relative;
  z-index: 1;
  justify-self: end;
  width: 100%;
  max-width: 330px;
  height: auto;
  filter: drop-shadow(0 12px 22px rgba(15, 123, 95, 0.22));
}

/* 深色页眉里的工具入口条 */
.site-header .toolnav-item {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.3);
  color: #fff;
}

.site-header .toolnav-item:hover {
  background: rgba(255, 255, 255, 0.26);
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

.site-header .toolnav-icon {
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

/* 结果区评分与标题同一行时靠右 */
.result-head {
  row-gap: 8px;
}

.result-head .rw-score {
  margin-left: auto;
}

@media (max-width: 560px) {
  .herb-hero {
    grid-template-columns: 1fr;
    padding: 16px;
  }

  .herb-hero-art {
    order: -1;
    justify-self: center;
    max-width: 230px;
  }
}

/* ==================================================================
   页眉：与各工具簇一致——第一行左侧品牌，第二行工具横排，底部装饰
   ================================================================== */
.site-header {
  position: relative;
  overflow: hidden;
  padding: 0;
}

.site-header .wrap {
  max-width: 980px;
  padding-top: 12px;
  padding-bottom: 10px;
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  column-gap: 18px;
  row-gap: 8px;
}

.brand {
  flex: 0 1 auto;
  min-width: 0;
}

.site-header .toolnav {
  flex-basis: 100%;
  justify-content: flex-start;
  margin: 0;
  padding: 0;
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 12px;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 16px 7px, rgba(255, 255, 255, 0.5) 0 2.6px, transparent 3.1px),
    radial-gradient(circle at 44px 4px, rgba(255, 255, 255, 0.34) 0 2px, transparent 2.5px),
    radial-gradient(circle at 66px 9px, rgba(255, 255, 255, 0.24) 0 1.5px, transparent 2px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.14));
  background-size: 86px 12px, 86px 12px, 86px 12px, 100% 2px;
  background-position: 0 0, 0 0, 0 0, 0 bottom;
  background-repeat: repeat-x, repeat-x, repeat-x, no-repeat;
  opacity: 0.9;
}

/* 折叠块：辨药网是什么 */
details.about {
  padding: 16px 18px;
}

details.about > summary {
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 9px;
  list-style: none;
  font-weight: 700;
  color: var(--green-dark);
}

details.about > summary::-webkit-details-marker {
  display: none;
}

/* 与“使用说明与免责声明”一致的三角形，展开时朝下 */
details.about > summary::before {
  content: "";
  flex: none;
  width: 0;
  height: 0;
  border-left: 7px solid currentColor;
  border-top: 5.5px solid transparent;
  border-bottom: 5.5px solid transparent;
  transition: transform 0.18s ease;
}

details.about[open] > summary::before {
  transform: rotate(90deg);
}

details.about > summary:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 6px;
}

details.about > summary h2 {
  display: inline;
  margin: 0;
  font-size: 1.05rem;
  color: inherit;
}

.about-body {
  margin-top: 12px;
}

.about-body p + p {
  margin-top: 8px;
}

.about-body h3 {
  margin-top: 14px;
}

@media (max-width: 720px) {
  .site-header .wrap {
    max-width: 100%;
  }

  .brand-mark {
    width: 28px;
    height: 28px;
  }

  .site-header .toolnav {
    justify-content: flex-start;
  }
}