/* ===========================================================
   刘睿恩的植物册 · 样式
   风格参考：干净白底 + 瀑布流卡片 + 细边框微阴影（花瓣式）
   =========================================================== */

:root {
  --paper: #ffffff;
  --paper-soft: #fafaf9;
  --paper-warm: #f7f6f3;
  --ink: #1b1b1b;
  --ink-2: #5f6368;
  --ink-3: #9aa0a6;
  --line: #efeeec;
  --line-2: #e6e4e0;
  --green: #2f6b4f;
  --green-deep: #22503b;
  --green-soft: #eef4ef;
  --gold: #b8893f;

  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;

  --shadow-1: 0 1px 2px rgba(24, 32, 28, 0.04);
  --shadow-2: 0 12px 28px rgba(24, 32, 28, 0.08);
  --shadow-3: 0 24px 60px rgba(24, 32, 28, 0.12);

  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    system-ui, -apple-system, sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

::selection {
  background: #d8ead9;
  color: var(--green-deep);
}

/* ---------- 布局容器 ---------- */
.wrap {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.wrap--narrow {
  width: min(900px, calc(100% - 48px));
  margin: 0 auto;
}

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav__inner {
  height: 66px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  font-size: 16.5px;
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.brand__mark {
  width: 24px;
  height: 24px;
  flex: none;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav__link {
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 14.5px;
  color: var(--ink-2);
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.nav__link:hover {
  background: var(--paper-warm);
  color: var(--ink);
}

.nav__link.is-active {
  color: var(--green);
  background: var(--green-soft);
  font-weight: 500;
}

.nav__search {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 36px;
  padding: 0 14px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: var(--paper-soft);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.nav__search:focus-within {
  border-color: #b9d2c1;
  background: #fff;
}

.nav__search input {
  border: 0;
  outline: 0;
  background: transparent;
  width: 150px;
  font-size: 13.5px;
  color: var(--ink);
  font-family: inherit;
}

.nav__search input::placeholder {
  color: var(--ink-3);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: transform 0.18s var(--ease), box-shadow 0.22s var(--ease),
    background 0.22s var(--ease);
}

.btn--primary {
  background: var(--green);
  color: #fff;
  box-shadow: 0 6px 18px rgba(47, 107, 79, 0.22);
}

.btn--primary:hover {
  background: var(--green-deep);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(47, 107, 79, 0.26);
}

.btn--ghost {
  border-color: var(--line-2);
  color: var(--ink-2);
  background: #fff;
}

.btn--ghost:hover {
  border-color: var(--ink-3);
  color: var(--ink);
  transform: translateY(-2px);
}

/* ---------- 首页 Hero ---------- */
.hero {
  padding: 76px 0 64px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto 55%;
  height: 620px;
  background: radial-gradient(
    circle at 40% 40%,
    rgba(216, 234, 219, 0.55),
    rgba(255, 255, 255, 0) 62%
  );
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 64px;
  align-items: center;
  position: relative;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 10px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green);
  font-size: 12.5px;
  letter-spacing: 0.4px;
  margin-bottom: 22px;
}

.eyebrow__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2.4s infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.35;
    transform: scale(0.8);
  }
}

.hero h1 {
  font-size: clamp(38px, 4.4vw, 56px);
  line-height: 1.16;
  letter-spacing: -0.5px;
  margin: 0 0 20px;
  font-weight: 700;
}

.hero h1 em {
  font-style: normal;
  color: var(--green);
}

.hero__lead {
  font-size: 16.5px;
  color: var(--ink-2);
  max-width: 30em;
  margin: 0 0 14px;
}

.hero__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: var(--ink-3);
  margin-bottom: 32px;
}

.hero__meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.dot-sep {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--line-2);
  display: inline-block;
}

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ---------- 半身照卡（宝丽来式） ---------- */
.portrait {
  justify-self: center;
  position: relative;
  width: min(320px, 100%);
}

.portrait__card {
  background: #fff;
  padding: 12px 12px 0;
  border-radius: 3px;
  box-shadow: var(--shadow-3), 0 0 0 1px rgba(24, 32, 28, 0.04);
  transform: rotate(-2.6deg);
  transition: transform 0.5s var(--ease);
}

.portrait__card:hover {
  transform: rotate(0deg) translateY(-4px);
}

.portrait__frame {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: 2px;
  overflow: hidden;
  background: linear-gradient(170deg, #eef3ec, #f7f6f1 55%, #efeae1);
}

.portrait__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.portrait__fallback {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  color: #8a9a8f;
}

.portrait__fallback svg {
  width: 58%;
  opacity: 0.55;
}

.portrait__fallback p {
  font-size: 12px;
  margin: 0;
  letter-spacing: 1px;
  color: #9aa79e;
}

.portrait__cap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 14px 6px 16px;
  font-size: 13px;
  color: var(--ink-3);
}

.portrait__cap strong {
  color: var(--ink);
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.portrait__tape {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%) rotate(-3deg);
  width: 92px;
  height: 26px;
  background: rgba(214, 205, 180, 0.55);
  border-left: 1px dashed rgba(255, 255, 255, 0.7);
  border-right: 1px dashed rgba(255, 255, 255, 0.7);
  z-index: 2;
}

/* ---------- 区块标题 ---------- */
.section {
  padding: 58px 0;
}

.section--soft {
  background: var(--paper-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.section__title {
  font-size: 23px;
  font-weight: 650;
  margin: 0;
  letter-spacing: -0.2px;
}

.section__sub {
  font-size: 14px;
  color: var(--ink-3);
  margin: 6px 0 0;
}

.section__more {
  font-size: 14px;
  color: var(--green);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: gap 0.2s var(--ease);
}

.section__more:hover {
  gap: 9px;
}

/* ---------- 分类入口 ---------- */
.cats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.cat {
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: #fff;
  text-align: left;
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease),
    box-shadow 0.22s var(--ease);
}

.cat:hover {
  border-color: #cfe0d3;
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
}

.cat__name {
  font-size: 15px;
  font-weight: 550;
  display: block;
}

.cat__count {
  font-size: 12px;
  color: var(--ink-3);
  margin-top: 3px;
  display: block;
}

.cat__swatch {
  width: 26px;
  height: 26px;
  border-radius: 9px;
  margin-bottom: 12px;
  display: grid;
  place-items: center;
}

.cat__swatch svg {
  width: 16px;
  height: 16px;
}

/* ---------- 瀑布流卡片 ---------- */
.masonry {
  column-width: 250px;
  column-gap: 22px;
}

.card {
  break-inside: avoid;
  margin-bottom: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  display: block;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    border-color 0.3s var(--ease);
  opacity: 0;
  animation: rise 0.55s var(--ease) forwards;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
  border-color: transparent;
}

.card__media {
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
}

.card__media svg {
  width: 62%;
  height: auto;
  transition: transform 0.55s var(--ease);
}

.card:hover .card__media svg {
  transform: scale(1.06) rotate(-2deg);
}

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s var(--ease);
}

.card:hover .card__media img {
  transform: scale(1.03);
}

.ratio-34 {
  aspect-ratio: 3 / 4;
}
.ratio-11 {
  aspect-ratio: 1 / 1;
}
.ratio-43 {
  aspect-ratio: 4 / 3;
}

.card__body {
  padding: 14px 15px 16px;
}

.card__name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.2px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.card__latin {
  font-size: 11.5px;
  color: var(--ink-3);
  font-style: italic;
  margin-top: 2px;
  letter-spacing: 0.2px;
}

.card__tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 11px;
}

.tag {
  font-size: 11px;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--paper-warm);
  color: #7d7a72;
  letter-spacing: 0.2px;
}

.tag--green {
  background: var(--green-soft);
  color: var(--green);
}

/* ---------- 关于我 ---------- */
.about {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: center;
}

.about__text h2 {
  font-size: 26px;
  margin: 0 0 16px;
  letter-spacing: -0.2px;
}

.about__text p {
  color: var(--ink-2);
  font-size: 15.5px;
  margin: 0 0 14px;
  max-width: 34em;
}

.about__sign {
  margin-top: 24px;
  font-size: 13.5px;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: 10px;
}

.about__sign::before {
  content: "";
  width: 30px;
  height: 1px;
  background: var(--line-2);
}

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 38px 0 46px;
  background: var(--paper-soft);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--ink-3);
}

.footer__brand {
  font-weight: 600;
  color: var(--ink-2);
  font-size: 14px;
  margin-bottom: 6px;
}

/* ===========================================================
   图鉴页
   =========================================================== */
.page-head {
  padding: 46px 0 26px;
}

.page-head h1 {
  font-size: 32px;
  margin: 0 0 8px;
  letter-spacing: -0.4px;
}

.page-head p {
  color: var(--ink-3);
  font-size: 14.5px;
  margin: 0;
}

.filters {
  position: sticky;
  top: 66px;
  z-index: 30;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-row + .filter-row {
  margin-top: 10px;
}

.filter-label {
  font-size: 12.5px;
  color: var(--ink-3);
  width: 40px;
  flex: none;
  letter-spacing: 0.5px;
}

.chip {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: #fff;
  font-size: 13px;
  color: var(--ink-2);
  transition: all 0.2s var(--ease);
}

.chip:hover {
  border-color: #c7d8cc;
  color: var(--ink);
}

.chip.is-on {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
  font-weight: 500;
}

.result-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0 18px;
  font-size: 13.5px;
  color: var(--ink-3);
  gap: 14px;
  flex-wrap: wrap;
}

.result-bar b {
  color: var(--ink);
  font-weight: 600;
}

.empty {
  padding: 78px 20px;
  text-align: center;
  border: 1px dashed var(--line-2);
  border-radius: var(--r-lg);
  background: var(--paper-soft);
}

.empty h3 {
  margin: 16px 0 6px;
  font-size: 17px;
  font-weight: 600;
}

.empty p {
  margin: 0 0 20px;
  color: var(--ink-3);
  font-size: 14px;
}

.empty svg {
  width: 52px;
  opacity: 0.45;
}

/* ===========================================================
   详情页
   =========================================================== */
.detail {
  padding: 34px 0 76px;
}

.crumb {
  font-size: 13px;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 26px;
}

.crumb a:hover {
  color: var(--green);
}

.detail__grid {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 54px;
  align-items: start;
}

.detail__media {
  position: sticky;
  top: 96px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  background: var(--paper-warm);
}

.detail__media svg {
  width: 58%;
  height: auto;
}

.detail__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail__title {
  font-size: clamp(30px, 3.2vw, 40px);
  margin: 0 0 6px;
  letter-spacing: -0.5px;
  font-weight: 700;
}

.detail__latin {
  font-style: italic;
  color: var(--ink-3);
  font-size: 14.5px;
  margin: 0 0 6px;
}

.detail__alias {
  font-size: 13.5px;
  color: var(--ink-2);
  margin: 0 0 20px;
}

.detail__tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.detail__summary {
  font-size: 17px;
  line-height: 1.7;
  color: #33382f;
  padding-left: 16px;
  border-left: 2px solid #cfe0d3;
  margin: 0 0 32px;
}

/* 档案表 */
.spec {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  margin-bottom: 36px;
}

.spec__item {
  padding: 14px 4px 14px 0;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
}

.spec__item:nth-child(odd) {
  padding-right: 24px;
}

.spec__item:nth-child(even) {
  padding-left: 24px;
  border-left: 1px solid var(--line);
}

.spec__k {
  color: var(--ink-3);
  font-size: 13.5px;
  flex: none;
}

.spec__v {
  color: var(--ink);
  text-align: right;
  font-weight: 500;
}

/* 正文 */
.prose h2 {
  font-size: 18px;
  margin: 0 0 12px;
  font-weight: 650;
  letter-spacing: -0.1px;
}

.prose p {
  font-size: 15.5px;
  line-height: 1.9;
  color: #3a3f39;
  margin: 0 0 30px;
}

/* 养护 */
.care {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 30px;
}

.care__item {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 15px 16px;
  background: var(--paper-soft);
}

.care__k {
  font-size: 12px;
  color: var(--green);
  letter-spacing: 0.6px;
  margin-bottom: 5px;
}

.care__v {
  font-size: 14px;
  color: #3a3f39;
  line-height: 1.6;
}

/* 宠物提示 */
.pet {
  display: flex;
  gap: 12px;
  padding: 15px 17px;
  border-radius: var(--r-md);
  font-size: 13.5px;
  line-height: 1.65;
  margin-bottom: 34px;
}

.pet--safe {
  background: var(--green-soft);
  color: #2c5c43;
}

.pet--warn {
  background: #fdf3ec;
  color: #8a4b25;
}

.pet strong {
  flex: none;
}

/* 上下篇 */
.pager {
  display: flex;
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 26px;
  flex-wrap: wrap;
}

.pager a {
  flex: 1 1 220px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: all 0.22s var(--ease);
}

.pager a:hover {
  border-color: #cfe0d3;
  background: var(--paper-soft);
}

.pager span {
  display: block;
  font-size: 11.5px;
  color: var(--ink-3);
  letter-spacing: 0.6px;
  margin-bottom: 3px;
}

.pager b {
  font-size: 14.5px;
  font-weight: 550;
}

/* 回到顶部 */
.to-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line-2);
  box-shadow: var(--shadow-2);
  display: grid;
  place-items: center;
  color: var(--ink-2);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all 0.3s var(--ease);
  z-index: 60;
}

.to-top.is-show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* 404 */
.nf {
  min-height: 62vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 60px 20px;
}

.nf h1 {
  font-size: 76px;
  margin: 0;
  color: #dfe8e1;
  letter-spacing: -2px;
}

.nf p {
  color: var(--ink-2);
  margin: 6px 0 26px;
}

/* ===========================================================
   响应式
   =========================================================== */
@media (max-width: 1024px) {
  .hero {
    padding: 54px 0 46px;
  }
  .hero__grid {
    grid-template-columns: 1fr;
    gap: 44px;
  }
  .portrait {
    justify-self: start;
    width: 260px;
    order: -1;
  }
  .cats {
    grid-template-columns: repeat(3, 1fr);
  }
  .detail__grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }
  .detail__media {
    position: relative;
    top: 0;
    max-width: 420px;
  }
  .about {
    grid-template-columns: 1fr;
    gap: 34px;
  }
  .about .portrait {
    width: 220px;
  }
}

@media (max-width: 720px) {
  .wrap,
  .wrap--narrow {
    width: calc(100% - 32px);
  }
  .nav__inner {
    height: 58px;
    gap: 12px;
  }
  .nav__search {
    display: none;
  }
  .nav__link {
    padding: 6px 10px;
    font-size: 13.5px;
  }
  .hero {
    padding: 34px 0 36px;
  }
  .hero h1 {
    font-size: 34px;
  }
  .hero__lead {
    font-size: 15px;
  }
  .portrait {
    width: 210px;
  }
  .section {
    padding: 40px 0;
  }
  .cats {
    grid-template-columns: repeat(2, 1fr);
  }
  .masonry {
    column-width: auto;
    columns: 2;
    column-gap: 12px;
  }
  .card {
    margin-bottom: 12px;
  }
  .card__body {
    padding: 11px 12px 13px;
  }
  .card__name {
    font-size: 14.5px;
  }
  .filters {
    top: 58px;
    padding: 12px 0;
  }
  .filter-label {
    width: auto;
  }
  .spec {
    grid-template-columns: 1fr;
  }
  .spec__item:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }
  .spec__item:nth-child(odd) {
    padding-right: 0;
  }
  .care {
    grid-template-columns: 1fr;
  }
  .page-head h1 {
    font-size: 25px;
  }
  .detail {
    padding: 22px 0 56px;
  }
  .btn {
    height: 44px;
    padding: 0 20px;
    font-size: 14.5px;
  }
  .to-top {
    right: 16px;
    bottom: 16px;
  }
}

@media (max-width: 380px) {
  .masonry {
    columns: 1;
  }
}