/* 抖阴原创植物视频社区 · 夜间植物观察站视觉系统 */
:root {
  --night: #061814;
  --night-2: #0b2820;
  --night-3: #123a2d;
  --leaf: #5fd17d;
  --leaf-dark: #2f9a5a;
  --lime: #c8ff74;
  --amber: #ffb84d;
  --orchid: #d7a6ff;
  --cream: #f4f1e7;
  --paper: #eef4ec;
  --white: #ffffff;
  --ink: #14221c;
  --muted: #68776f;
  --line: rgba(18, 58, 45, .13);
  --glass: rgba(6, 24, 20, .72);
  --shadow: 0 22px 60px rgba(5, 31, 24, .14);
  --shadow-deep: 0 28px 80px rgba(0, 12, 9, .38);
  --radius-xl: 32px;
  --radius-lg: 22px;
  --radius-md: 15px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  line-height: 1.75;
  overflow-x: hidden;
}
body::selection {
  color: var(--night);
  background: var(--lime);
}
img,
video {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input {
  font: inherit;
}
button {
  border: 0;
}
h1,
h2,
h3,
h4,
h5,
h6,
p {
  margin-top: 0;
}
.container {
  width: min(1200px, calc(100% - 42px));
  margin-inline: auto;
}
.skip-link {
  position: fixed;
  z-index: 9999;
  top: 14px;
  left: -999px;
  padding: 11px 16px;
  color: var(--night);
  background: var(--lime);
  border-radius: 10px;
}
.skip-link:focus {
  left: 14px;
}
.top-note {
  color: rgba(255, 255, 255, .76);
  background: var(--night);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  font-size: 12px;
}
.top-note .container {
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.top-note strong {
  color: var(--lime);
}
.top-signals {
  display: flex;
  gap: 18px;
}
.site-header {
  position: sticky;
  z-index: 90;
  top: 0;
  color: var(--white);
  background: rgba(6, 24, 20, .92);
  border-bottom: 1px solid rgba(255, 255, 255, .09);
  backdrop-filter: blur(18px);
}
.header-row {
  min-height: 78px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: 0 0 auto;
}
.brand img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}
.brand-copy {
  display: grid;
  line-height: 1.05;
}
.brand-copy b {
  font-size: 22px;
  letter-spacing: .08em;
}
.brand-copy small {
  margin-top: 6px;
  color: var(--lime);
  font-size: 9px;
  letter-spacing: .22em;
}
.primary-nav {
  min-width: 0;
  display: flex;
  flex: 1;
  align-items: center;
  gap: 3px;
}
.primary-nav a {
  padding: 9px 10px;
  color: rgba(255, 255, 255, .76);
  border-radius: 10px;
  font-size: 13px;
  white-space: nowrap;
  transition: color .2s var(--ease), background .2s var(--ease);
}
.primary-nav a:hover,
.primary-nav a.active {
  color: var(--white);
  background: rgba(200, 255, 116, .14);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.icon-button {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: rgba(255, 255, 255, .1);
  border-radius: 50%;
  cursor: pointer;
}
.icon-button:hover {
  color: var(--night);
  background: var(--lime);
}
.menu-button {
  display: none;
}
.search-dock {
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
}
.search-row {
  min-height: 66px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.search-box {
  position: relative;
  flex: 1;
  max-width: 690px;
}
.search-box input {
  width: 100%;
  min-height: 44px;
  padding: 0 48px 0 18px;
  color: var(--ink);
  background: #f4f7f2;
  border: 1px solid #d9e3d9;
  border-radius: 999px;
  outline: 0;
}
.search-box input:focus {
  border-color: var(--leaf-dark);
  box-shadow: 0 0 0 4px rgba(95, 209, 125, .13);
}
.search-box button {
  position: absolute;
  top: 5px;
  right: 6px;
  width: 34px;
  height: 34px;
  color: var(--white);
  background: var(--night-2);
  border-radius: 50%;
  cursor: pointer;
}
.trending {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}
.trending a {
  padding: 4px 9px;
  color: #39584a;
  background: #eaf2e8;
  border-radius: 999px;
}
.hero {
  position: relative;
  min-height: 680px;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: var(--night);
}
.hero > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, rgba(3, 16, 13, .99) 0%, rgba(5, 25, 20, .93) 38%, rgba(5, 25, 20, .2) 74%);
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(240px, .9fr);
  align-items: center;
  gap: 40px;
  padding: 86px 0;
}
.hero-copy {
  max-width: 720px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  color: var(--lime);
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: .1em;
}
.eyebrow::before {
  width: 8px;
  height: 8px;
  content: "";
  background: var(--amber);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(255, 184, 77, .16);
}
.hero h1 {
  margin: 22px 0 18px;
  max-width: 720px;
  font-size: clamp(44px, 6.2vw, 78px);
  line-height: 1.08;
  letter-spacing: -.055em;
}
.hero h1 em {
  color: var(--lime);
  font-style: normal;
}
.hero-copy > p {
  max-width: 650px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, .76);
  font-size: 17px;
}
.hero-actions,
.card-actions,
.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 19px;
  font-weight: 800;
  border-radius: 12px;
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}
.button:hover {
  transform: translateY(-2px);
}
.button-primary {
  color: var(--night);
  background: var(--lime);
  box-shadow: 0 14px 32px rgba(95, 209, 125, .24);
}
.button-secondary {
  color: var(--white);
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .2);
}
.button-dark {
  color: var(--white);
  background: var(--night-2);
}
.button-line {
  color: var(--night-2);
  background: transparent;
  border: 1px solid rgba(18, 58, 45, .22);
}
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: 38px;
  background: rgba(255, 255, 255, .13);
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 18px;
  overflow: hidden;
}
.hero-metric {
  padding: 16px;
  background: rgba(4, 20, 16, .7);
}
.hero-metric b {
  display: block;
  color: var(--lime);
  font-size: 22px;
}
.hero-metric span {
  color: rgba(255, 255, 255, .58);
  font-size: 11px;
}
.hero-orbit {
  justify-self: end;
  align-self: end;
  width: min(100%, 330px);
  padding: 22px;
  color: var(--night);
  background: rgba(244, 241, 231, .9);
  border-radius: 50% 50% 15% 50%;
  box-shadow: var(--shadow-deep);
  backdrop-filter: blur(12px);
}
.hero-orbit strong {
  display: block;
  font-size: 26px;
  line-height: 1.15;
}
.hero-orbit p {
  margin: 10px 0 0;
  color: #4e655a;
  font-size: 13px;
}
.trust-rail {
  color: var(--white);
  background: var(--night-2);
}
.trust-grid {
  display: grid;
  grid-template-columns: 1.35fr repeat(4, 1fr);
  align-items: stretch;
}
.trust-item {
  min-height: 94px;
  display: grid;
  align-content: center;
  padding: 17px 20px;
  border-right: 1px solid rgba(255, 255, 255, .09);
}
.trust-item:first-child {
  background: var(--lime);
  color: var(--night);
}
.trust-item b {
  display: block;
  font-size: 14px;
}
.trust-item span {
  margin-top: 3px;
  color: rgba(255, 255, 255, .58);
  font-size: 11px;
}
.trust-item:first-child span {
  color: rgba(6, 24, 20, .68);
}
.section {
  padding: 92px 0;
}
.section-white {
  background: var(--white);
}
.section-dark {
  color: var(--white);
  background: var(--night);
}
.section-lime {
  background: #dfffab;
}
.section-orchid {
  background: #f3eafb;
}
.section-heading {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 480px);
  align-items: end;
  gap: 35px;
  margin-bottom: 34px;
}
.section-kicker {
  margin-bottom: 9px;
  color: var(--leaf-dark);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.section-dark .section-kicker {
  color: var(--lime);
}
.section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.15;
  letter-spacing: -.04em;
}
.section-heading p {
  margin-bottom: 0;
  color: var(--muted);
}
.section-dark .section-heading p {
  color: rgba(255, 255, 255, .64);
}
.data-note {
  margin: 0 0 22px;
  padding: 12px 15px;
  color: #655020;
  background: #fff8d9;
  border-left: 4px solid var(--amber);
  border-radius: 8px;
  font-size: 12px;
}
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.video-card {
  position: relative;
  min-height: 390px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  padding: 21px;
  color: var(--white);
  background: var(--night-2);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  isolation: isolate;
  cursor: pointer;
}
.video-card:nth-child(1),
.video-card:nth-child(5) {
  grid-column: span 2;
}
.video-card > img,
.video-card > video {
  position: absolute;
  z-index: -2;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease), filter .4s var(--ease);
}
.video-card::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  background: linear-gradient(0deg, rgba(2, 13, 10, .97), rgba(3, 19, 15, .08) 72%);
}
.video-card:hover > img,
.video-card:hover > video,
.video-card.is-playing > video {
  transform: scale(1.055);
  filter: saturate(1.08);
}
.video-badge {
  align-self: flex-start;
  margin-bottom: auto;
  padding: 5px 10px;
  color: var(--night);
  background: var(--lime);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 900;
}
.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  color: var(--night);
  background: rgba(255, 255, 255, .94);
  border-radius: 50%;
  opacity: 0;
  transform: translate(-50%, -42%) scale(.8);
  transition: opacity .22s var(--ease), transform .22s var(--ease);
  box-shadow: 0 18px 42px rgba(0, 0, 0, .25);
}
.video-card:hover .play-button,
.video-card:focus-visible .play-button,
.video-card.is-playing .play-button {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}
.video-card h3 {
  margin: 0 0 7px;
  font-size: 22px;
  line-height: 1.25;
}
.video-card p {
  margin-bottom: 15px;
  color: rgba(255, 255, 255, .7);
  font-size: 13px;
}
.video-data {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  color: rgba(255, 255, 255, .67);
  font-size: 11px;
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.service-card {
  position: relative;
  min-height: 240px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}
.service-number {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--white);
  background: var(--night-2);
  border-radius: 14px;
  font-weight: 900;
}
.service-card h3 {
  margin: 22px 0 9px;
  font-size: 20px;
}
.service-card p {
  margin-bottom: 17px;
  color: var(--muted);
  font-size: 13px;
}
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.tag {
  padding: 5px 9px;
  color: #315844;
  background: #e8f5e7;
  border-radius: 999px;
  font-size: 11px;
}
.media-mosaic {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
}
.mosaic-card {
  position: relative;
  min-height: 330px;
  grid-column: span 4;
  overflow: hidden;
  color: var(--white);
  background: var(--night-2);
  border-radius: var(--radius-lg);
  isolation: isolate;
}
.mosaic-card:nth-child(1),
.mosaic-card:nth-child(6) {
  grid-column: span 8;
}
.mosaic-card img {
  position: absolute;
  z-index: -2;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}
.mosaic-card::after {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  background: linear-gradient(0deg, rgba(2, 16, 12, .95), rgba(4, 22, 17, .05));
}
.mosaic-card:hover img {
  transform: scale(1.05);
}
.mosaic-copy {
  position: absolute;
  right: 22px;
  bottom: 22px;
  left: 22px;
}
.mosaic-copy h3 {
  margin-bottom: 6px;
  font-size: 23px;
}
.mosaic-copy p {
  margin: 0;
  color: rgba(255, 255, 255, .72);
  font-size: 13px;
}
.ai-stage {
  position: relative;
  min-height: 620px;
  display: grid;
  grid-template-columns: .92fr 1.08fr;
  overflow: hidden;
  background: #0d221c;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-deep);
}
.ai-visual {
  position: relative;
  min-height: 500px;
}
.ai-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ai-copy {
  padding: 58px 50px;
  color: var(--white);
}
.ai-copy h2 {
  margin-bottom: 14px;
  font-size: 44px;
  line-height: 1.14;
}
.ai-copy > p {
  color: rgba(255, 255, 255, .66);
}
.ai-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 28px;
}
.ai-item {
  padding: 16px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: 14px;
}
.ai-item b {
  display: block;
  color: var(--lime);
}
.ai-item span {
  display: block;
  margin-top: 4px;
  color: rgba(255, 255, 255, .58);
  font-size: 12px;
}
.community-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 22px;
  align-items: stretch;
}
.community-visual {
  position: relative;
  min-height: 540px;
  overflow: hidden;
  border-radius: var(--radius-xl);
}
.community-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.community-copy {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.community-card {
  padding: 21px;
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
}
.community-card h3 {
  margin-bottom: 7px;
  font-size: 17px;
}
.community-card p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}
.expert-visual {
  margin-bottom: 22px;
  overflow: hidden;
  border-radius: var(--radius-xl);
  max-height: 520px;
}
.expert-visual img {
  width: 100%;
  height: 520px;
  object-fit: cover;
}
.expert-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}
.expert-card {
  padding: 20px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.expert-avatar {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: var(--night-2);
  border-radius: 18px;
  font-size: 20px;
  font-weight: 900;
}
.expert-card h3 {
  margin: 15px 0 2px;
  font-size: 18px;
}
.expert-card .role {
  color: var(--leaf-dark);
  font-size: 11px;
  font-weight: 900;
}
.expert-list {
  display: grid;
  gap: 7px;
  margin: 14px 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 11px;
}
.expert-card .card-actions a {
  font-size: 11px;
  font-weight: 800;
}
.partner-wall {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.partner-logo {
  min-height: 106px;
  display: grid;
  place-items: center;
  padding: 16px;
  color: var(--white);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 15px;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: .07em;
  text-align: center;
}
.partner-logo small {
  display: block;
  color: var(--lime);
  font-size: 9px;
  letter-spacing: .22em;
}
.how-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.how-card {
  min-height: 240px;
  padding: 22px;
  background: rgba(255, 255, 255, .64);
  border: 1px solid rgba(18, 58, 45, .12);
  border-radius: var(--radius-lg);
}
.how-card span {
  display: block;
  color: var(--leaf-dark);
  font-size: 34px;
  font-weight: 900;
}
.how-card h3 {
  margin: 35px 0 8px;
  font-size: 18px;
}
.how-card p {
  margin: 0;
  color: #53665c;
  font-size: 13px;
}
.faq-review-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.faq-stack,
.review-stack {
  display: grid;
  gap: 10px;
}
.faq-item,
.review-card {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 17px 18px;
  color: var(--ink);
  background: var(--white);
  cursor: pointer;
  text-align: left;
  font-weight: 800;
}
.faq-question span {
  color: var(--leaf-dark);
  font-size: 22px;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 18px;
  color: var(--muted);
  font-size: 13px;
  transition: max-height .3s var(--ease), padding .3s var(--ease);
}
.faq-item.open .faq-answer {
  max-height: 180px;
  padding: 0 18px 17px;
}
.review-card {
  padding: 18px;
}
.review-card blockquote {
  margin: 0 0 13px;
  font-size: 14px;
}
.review-meta {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 11px;
}
.review-meta b {
  color: var(--leaf-dark);
}
.contact-stage {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  overflow: hidden;
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}
.contact-image {
  min-height: 600px;
}
.contact-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.contact-copy {
  padding: 48px;
}
.contact-copy h2 {
  margin-bottom: 11px;
  font-size: 40px;
  line-height: 1.16;
}
.contact-copy > p {
  color: var(--muted);
}
.contact-list {
  display: grid;
  gap: 10px;
  margin: 24px 0;
  padding: 0;
  list-style: none;
}
.contact-list li {
  display: grid;
  grid-template-columns: 94px 1fr;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}
.contact-list b {
  color: var(--leaf-dark);
}
.mcp-panel {
  margin-top: 22px;
  padding: 18px;
  color: var(--white);
  background: var(--night-2);
  border-radius: var(--radius-md);
}
.mcp-panel h3 {
  margin-bottom: 7px;
  font-size: 16px;
}
.mcp-panel p {
  color: rgba(255, 255, 255, .62);
  font-size: 12px;
}
.mcp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.mcp-actions button {
  padding: 8px 11px;
  color: var(--night);
  background: var(--lime);
  border-radius: 9px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 900;
}
.page-hero {
  position: relative;
  min-height: 470px;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--white);
  background: var(--night);
}
.page-hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .62;
}
.page-hero::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(0deg, rgba(4, 20, 16, .98), rgba(4, 20, 16, .12));
}
.page-hero-copy {
  position: relative;
  z-index: 1;
  max-width: 850px;
  padding: 72px 0;
}
.page-hero h1 {
  margin: 17px 0 12px;
  font-size: clamp(38px, 5vw, 61px);
  line-height: 1.1;
}
.page-hero p {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 255, 255, .72);
}
.breadcrumb {
  background: var(--white);
  border-bottom: 1px solid var(--line);
}
.breadcrumb .container {
  min-height: 48px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}
.breadcrumb strong {
  color: var(--leaf-dark);
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 32px;
}
.article-list {
  display: grid;
  gap: 16px;
}
.article-card {
  display: grid;
  grid-template-columns: 250px 1fr;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.article-thumb {
  position: relative;
  min-height: 220px;
  overflow: hidden;
}
.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s var(--ease);
}
.article-card:hover .article-thumb img {
  transform: scale(1.05);
}
.article-thumb .play-button {
  opacity: 1;
  width: 50px;
  height: 50px;
}
.article-body {
  padding: 23px;
}
.article-body h2 {
  margin: 10px 0 8px;
  font-size: 23px;
  line-height: 1.3;
}
.article-body p {
  color: var(--muted);
  font-size: 13px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: #708078;
  font-size: 11px;
}
.sidebar {
  align-self: start;
  display: grid;
  gap: 14px;
  position: sticky;
  top: 98px;
}
.side-card {
  padding: 21px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.side-card h3 {
  margin-bottom: 12px;
  font-size: 17px;
}
.side-card p,
.side-card li {
  color: var(--muted);
  font-size: 12px;
}
.side-card ul {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.side-card a {
  color: var(--leaf-dark);
  font-weight: 800;
}
.share-float {
  position: fixed;
  z-index: 70;
  right: 18px;
  bottom: 18px;
  display: flex;
  gap: 6px;
  padding: 7px;
  background: rgba(255, 255, 255, .94);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}
.share-float button {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: var(--white);
  background: var(--night-2);
  border-radius: 50%;
  cursor: pointer;
  font-size: 11px;
  font-weight: 900;
}
.share-float button:hover {
  color: var(--night);
  background: var(--lime);
}
.site-footer {
  color: rgba(255, 255, 255, .62);
  background: #03110d;
}
.footer-main {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1fr 1.2fr;
  gap: 28px;
  padding: 62px 0 40px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--white);
  font-size: 23px;
  font-weight: 900;
}
.footer-brand img {
  width: 48px;
  height: 48px;
}
.footer-intro p {
  max-width: 350px;
  margin: 17px 0 0;
  font-size: 12px;
}
.footer-col h5,
.footer-col h6 {
  margin-bottom: 13px;
  color: var(--white);
  font-size: 14px;
}
.footer-col a,
.footer-col span {
  display: block;
  margin: 7px 0;
  font-size: 12px;
}
.qr-grid {
  display: flex;
  gap: 10px;
}
.qr-card {
  width: 98px;
  text-align: center;
  font-size: 10px;
}
.qr-card img {
  width: 86px;
  height: 86px;
  margin: 0 auto 6px;
  padding: 5px;
  background: var(--white);
  border-radius: 8px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  padding: 20px 0 28px;
  border-top: 1px solid rgba(255, 255, 255, .09);
  font-size: 11px;
}
.toast {
  position: fixed;
  z-index: 120;
  left: 50%;
  bottom: 78px;
  max-width: calc(100% - 34px);
  padding: 11px 16px;
  color: var(--white);
  background: rgba(4, 20, 16, .96);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 14px);
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}
.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}
@media (max-width: 1100px) {
  .primary-nav a {
    padding-inline: 7px;
    font-size: 12px;
  }
  .expert-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-main {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
  .footer-col:last-child {
    grid-column: 1 / -1;
  }
}
@media (max-width: 880px) {
  .menu-button {
    display: grid;
  }
  .primary-nav {
    position: absolute;
    top: 77px;
    left: 0;
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px 20px 20px;
    background: var(--night);
  }
  .primary-nav.open {
    display: flex;
  }
  .primary-nav a {
    padding: 11px 13px;
  }
  .trending {
    display: none;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-orbit {
    display: none;
  }
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .trust-item:first-child {
    grid-column: 1 / -1;
  }
  .video-grid,
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .video-card:nth-child(1),
  .video-card:nth-child(5) {
    grid-column: span 1;
  }
  .mosaic-card,
  .mosaic-card:nth-child(1),
  .mosaic-card:nth-child(6) {
    grid-column: span 6;
  }
  .ai-stage,
  .community-grid,
  .contact-stage,
  .faq-review-grid,
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-layout .sidebar {
    position: static;
  }
  .how-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 620px) {
  .container {
    width: min(100% - 28px, 1200px);
  }
  .top-signals,
  .brand-copy small,
  .header-actions .share-trigger {
    display: none;
  }
  .header-row {
    min-height: 68px;
  }
  .primary-nav {
    top: 67px;
  }
  .brand img {
    width: 39px;
    height: 39px;
  }
  .brand-copy b {
    font-size: 19px;
  }
  .search-row {
    min-height: 58px;
  }
  .hero {
    min-height: 610px;
  }
  .hero > img {
    object-position: 64% center;
  }
  .hero::after {
    background: linear-gradient(90deg, rgba(3, 16, 13, .97), rgba(5, 25, 20, .62));
  }
  .hero-grid {
    padding: 62px 0;
  }
  .hero h1 {
    font-size: 44px;
  }
  .hero-copy > p {
    font-size: 15px;
  }
  .hero-metrics {
    grid-template-columns: repeat(2, 1fr);
  }
  .trust-grid,
  .video-grid,
  .service-grid,
  .community-copy,
  .expert-grid,
  .partner-wall,
  .how-grid {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 64px 0;
  }
  .section-heading {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .video-card {
    min-height: 350px;
  }
  .mosaic-card,
  .mosaic-card:nth-child(1),
  .mosaic-card:nth-child(6) {
    grid-column: span 12;
  }
  .ai-copy {
    padding: 36px 23px;
  }
  .ai-copy h2 {
    font-size: 34px;
  }
  .ai-list {
    grid-template-columns: 1fr;
  }
  .community-visual {
    min-height: 360px;
  }
  .expert-visual img {
    height: 360px;
  }
  .contact-image {
    min-height: 360px;
  }
  .contact-copy {
    padding: 32px 22px;
  }
  .contact-copy h2 {
    font-size: 32px;
  }
  .contact-list li {
    grid-template-columns: 78px 1fr;
  }
  .article-card {
    grid-template-columns: 1fr;
  }
  .article-thumb {
    min-height: 230px;
  }
  .footer-main {
    grid-template-columns: 1fr;
  }
  .footer-col:last-child {
    grid-column: auto;
  }
  .footer-bottom {
    display: block;
  }
  .share-float {
    right: 10px;
    bottom: 10px;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}

/* 百度SEO与EEAT整改：透明度、政策与真实功能 */
.source-note { margin: 22px 0 0; color: rgba(255,255,255,.62); font-size: 12px; }
.policy-links { margin-top: 24px; }
.publication-note { padding: 13px 0; color: #355448; background: #edf6ea; border-bottom: 1px solid var(--line); font-size: 12px; }
.publication-note .container { display: flex; justify-content: space-between; gap: 20px; }
.card-link { position: relative; z-index: 3; display: inline-flex; margin-top: 12px; color: var(--lime); font-size: 12px; font-weight: 900; }
.content-status { display: inline-flex; padding: 5px 9px; color: #6b4a12; background: #fff2c9; border-radius: 999px; font-size: 11px; font-weight: 900; }
.prose { max-width: 860px; margin: 0 auto; }
.prose h2 { margin-top: 42px; font-size: 31px; line-height: 1.25; }
.prose h3 { margin-top: 30px; font-size: 22px; }
.prose p, .prose li { color: #485a51; }
.prose a { color: #247a49; text-decoration: underline; text-underline-offset: 3px; }
.prose blockquote { margin: 24px 0; padding: 18px 20px; color: #334e41; background: #eaf4e9; border-left: 4px solid var(--leaf-dark); }
.prose table { width: 100%; border-collapse: collapse; margin: 22px 0; background: #fff; }
.prose th, .prose td { padding: 12px; border: 1px solid #d9e4dc; text-align: left; vertical-align: top; }
.prose th { background: #eaf3e9; }
.meta-line { display: flex; flex-wrap: wrap; gap: 10px 18px; margin: 15px 0 28px; color: #66776d; font-size: 12px; }
.species-card { margin: 26px 0; padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.species-card dl { display: grid; grid-template-columns: 130px 1fr; margin: 0; }
.species-card dt, .species-card dd { margin: 0; padding: 9px 0; border-bottom: 1px solid var(--line); }
.species-card dt { font-weight: 900; }
.local-video { width: 100%; margin: 24px 0; background: #061814; border-radius: 18px; }
.consent-banner { position: fixed; z-index: 200; right: 18px; bottom: 18px; left: 18px; max-width: 820px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 17px 19px; color: #fff; background: #061814; border: 1px solid rgba(255,255,255,.15); border-radius: 16px; box-shadow: var(--shadow-deep); }
.consent-banner[hidden] { display: none; }
.consent-banner p { margin: 3px 0 0; color: rgba(255,255,255,.67); font-size: 12px; }
.consent-actions { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; }
.consent-actions button, .consent-actions a { padding: 8px 11px; color: #fff; background: rgba(255,255,255,.1); border-radius: 9px; cursor: pointer; font-size: 11px; }
.consent-actions button[data-consent="accepted"] { color: #061814; background: var(--lime); font-weight: 900; }
@media (max-width: 620px) {
  .publication-note .container, .consent-banner { display: block; }
  .consent-actions { margin-top: 12px; flex-wrap: wrap; }
  .species-card dl { grid-template-columns: 1fr; }
  .species-card dt { padding-bottom: 0; border-bottom: 0; }
}