:root {
    --green-dark: #1B4D3E;
    --green-mid: #2D6A4F;
    --green-light: #52B788;
    --green-mint: #95D5B2;
    --green-pale: #D8F3DC;
    --green-bg: #F1F8F4;
    --green-bg2: #E8F5E9;
    --bg-white: #F8FFF8;
    --gold: #B8860B;
    --white: #FFFFFF;
    --black: #000000;
    --gray-dark: #333333;
    --gray-mid: #555555;
    --gray-light: #888888;
    --border: #C8E6C9;
    --border-light: #E8F5E9;
  }
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Noto Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-white);
    color: var(--green-dark);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
  }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--green-bg); }
::-webkit-scrollbar-thumb { background: var(--green-mint); border-radius: 2px; }
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
  }
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }
@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
  }
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
  }
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
  }
.logo-en {
    font-size: 18px;
    font-weight: 900;
    letter-spacing: 3px;
    color: var(--green-dark);
  }
.logo-cn {
    font-size: 10px;
    letter-spacing: 4px;
    color: var(--green-light);
    margin-top: 3px;
    font-weight: 400;
  }
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background:
      linear-gradient(90deg, rgba(248, 255, 248, 0.96) 0%, rgba(248, 255, 248, 0.72) 52%, rgba(248, 255, 248, 0.36) 100%),
      url('/wp-content/themes/supersyn/assets/img/home-hero-desktop.jpg') center / cover no-repeat;
    padding: 120px 40px 80px;
    position: relative;
    overflow: hidden;
  }
.hero::before {
    content: '';
    position: absolute;
    top: -20%; left: -10%;
    width: 60%; height: 60%;
    background: linear-gradient(180deg, rgba(27, 77, 62, 0.04), transparent 72%);
    animation: float 8s ease-in-out infinite;
  }
.hero::after {
    content: '';
    position: absolute;
    bottom: -10%; right: -5%;
    width: 50%; height: 50%;
    background: linear-gradient(180deg, transparent, rgba(27, 77, 62, 0.08));
    animation: float 10s ease-in-out infinite reverse;
  }
.hero-content {
    text-align: center;
    max-width: 820px;
    position: relative;
    z-index: 1;
  }
.hero-eyebrow {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 6px;
    color: var(--green-light);
    font-weight: 400;
    margin-bottom: 36px;
    text-transform: uppercase;
    background: rgba(82, 183, 136, 0.1);
    padding: 8px 20px;
    border-radius: 20px;
    border: 1px solid rgba(82, 183, 136, 0.25);
    opacity: 0;
    animation: fadeUp 1s 0.1s ease forwards;
  }
.hero-title {
    font-size: clamp(52px, 9vw, 108px);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: 2px;
    color: var(--green-dark);
    margin-bottom: 28px;
    opacity: 0;
    animation: fadeUp 1s 0.3s ease forwards;
  }
.hero-brand {
    font-size: clamp(16px, 2.5vw, 22px);
    font-weight: 400;
    letter-spacing: 8px;
    color: var(--green-mid);
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeUp 1s 0.5s ease forwards;
  }
.hero-desc {
    font-size: 15px;
    letter-spacing: 4px;
    color: var(--gray-mid);
    font-weight: 300;
    margin-bottom: 52px;
    opacity: 0;
    animation: fadeUp 1s 0.7s ease forwards;
  }
.hero-footnote {
    font-size: 10px;
    color: var(--gray-light);
    font-weight: 300;
    letter-spacing: 1px;
    line-height: 1.8;
    margin-bottom: 32px;
    opacity: 0;
    animation: fadeUp 1s 0.8s ease forwards;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
  }
.hero-btn {
    display: inline-block;
    background: var(--green-dark);
    color: var(--white);
    padding: 16px 52px;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 3px;
    text-decoration: none;
    border-radius: 32px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 8px 32px rgba(27, 77, 62, 0.3);
    opacity: 0;
    animation: fadeUp 1s 0.9s ease forwards;
    border: none;
  }
.hero-btn:hover {
    background: var(--green-mid);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(27, 77, 62, 0.4);
  }
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0;
    animation: fadeIn 1s 1.3s ease forwards;
    z-index: 1;
  }
.hero-scroll-arrow {
    font-size: 22px;
    color: var(--green-light);
    animation: scrollBounce 2s ease-in-out infinite;
  }
.hero-scroll-text {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--green-light);
    font-weight: 300;
  }
section {
    padding: 120px 40px;
  }
.section-inner {
    max-width: 1100px;
    margin: 0 auto;
  }
.section-label {
    font-size: 11px;
    letter-spacing: 5px;
    color: var(--green-light);
    font-weight: 400;
    text-transform: uppercase;
    margin-bottom: 20px;
    text-align: center;
  }
.section-title {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 900;
    color: var(--green-dark);
    letter-spacing: 0px;
    margin-bottom: 16px;
    text-align: center;
  }
.section-subtitle {
    font-size: 15px;
    color: var(--gray-mid);
    text-align: center;
    font-weight: 300;
    letter-spacing: 1px;
    margin-bottom: 72px;
    line-height: 1.8;
  }
.brand-intro-section {
    padding-top: 96px;
    padding-bottom: 96px;
    background: #edf6f0;
    border-top: 1px solid rgba(27, 77, 62, 0.08);
    border-bottom: 1px solid rgba(27, 77, 62, 0.08);
  }
.brand-intro-layout {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 80px;
    align-items: start;
  }
.brand-intro-copy .section-label {
    text-align: left;
    color: var(--gold);
  }
.brand-intro-title {
    margin-bottom: 24px;
    color: var(--green-dark);
    font-size: clamp(34px, 4.8vw, 58px);
    font-weight: 900;
    line-height: 1.14;
    letter-spacing: 0;
  }
.brand-intro-lead {
    max-width: 520px;
    margin-bottom: 30px;
    color: var(--gray-mid);
    font-size: 17px;
    font-weight: 300;
    line-height: 2;
    letter-spacing: 0;
  }
.brand-intro-link, .home-faq-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--green-dark);
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    border-bottom: 1px solid currentColor;
  }
.brand-methods {
    border-top: 1px solid rgba(27, 77, 62, 0.18);
  }
.brand-method-item {
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 18px;
    padding: 25px 0;
    border-bottom: 1px solid rgba(27, 77, 62, 0.18);
  }
.brand-method-number {
    padding-top: 3px;
    color: var(--gold);
    font-size: 13px;
    font-weight: 700;
  }
.brand-method-item h3 {
    margin-bottom: 8px;
    color: var(--green-dark);
    font-size: 21px;
    line-height: 1.4;
    letter-spacing: 0;
  }
.brand-method-item p {
    color: var(--gray-mid);
    font-size: 14px;
    font-weight: 300;
    line-height: 1.8;
    letter-spacing: 0;
  }
.era-section {
    background: var(--white);
    text-align: center;
  }
.era-text {
    max-width: 700px;
    margin: 0 auto;
  }
.era-lead {
    font-size: clamp(22px, 3.5vw, 36px);
    font-weight: 700;
    line-height: 1.6;
    color: var(--green-dark);
    margin-bottom: 48px;
    letter-spacing: 1px;
  }
.era-body {
    font-size: 17px;
    line-height: 2.4;
    color: var(--gray-mid);
    font-weight: 300;
    letter-spacing: 1px;
  }
.era-body p {
    margin-bottom: 20px;
  }
.era-body p:last-child { margin-bottom: 0; }
.era-emphasis {
    font-size: 20px;
    font-weight: 700;
    color: var(--green-dark);
    line-height: 2;
    letter-spacing: 2px;
  }
.proposition-section {
    background: var(--green-bg);
    text-align: center;
  }
.prop-title {
    font-size: 13px;
    letter-spacing: 5px;
    color: var(--green-light);
    font-weight: 400;
    margin-bottom: 56px;
  }
.prop-question {
    font-size: clamp(18px, 2.5vw, 24px);
    color: var(--gray-mid);
    font-weight: 300;
    line-height: 2;
    margin-bottom: 16px;
    letter-spacing: 1px;
  }
.prop-not {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--gray-light);
    font-weight: 300;
    line-height: 2;
    text-decoration: line-through;
    text-decoration-color: var(--green-mint);
    margin-bottom: 40px;
  }
.prop-answer {
    font-size: clamp(28px, 4.5vw, 52px);
    font-weight: 900;
    color: var(--green-dark);
    line-height: 1.3;
    letter-spacing: 0px;
    margin-bottom: 56px;
  }
.prop-footnote {
    font-size: 15px;
    color: var(--gray-mid);
    line-height: 2.2;
    font-weight: 300;
    letter-spacing: 1px;
    max-width: 580px;
    margin: 0 auto;
    padding: 32px;
    background: rgba(255,255,255,0.7);
    border-radius: 16px;
    border: 1px solid rgba(82, 183, 136, 0.2);
  }
.prop-footnote strong {
    color: var(--green-dark);
    font-weight: 700;
  }
.mechanism-section {
    background: var(--white);
  }
.mechanism-section .section-inner {
    position: relative;
    z-index: 1;
  }
.mechanism-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
.mechanism-card {
    background: var(--white);
    padding: 48px 44px;
    border-radius: 20px;
    border: 1px solid var(--border-light);
    border-left: 4px solid var(--green-light);
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
  }
.mechanism-card::before {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 120px; height: 120px;
    background: radial-gradient(ellipse at top right, rgba(82, 183, 136, 0.1) 0%, transparent 70%);
    border-radius: 0 20px 0 0;
  }
.mechanism-card:hover {
    transform: translateY(-6px);
    box-shadow: 
      0 20px 60px rgba(27, 77, 62, 0.15),
      0 0 0 1px rgba(82, 183, 136, 0.1),
      inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border-left-color: var(--green-dark);
  }
.mechanism-icon {
    width: 52px;
    height: 52px;
    margin-bottom: 24px;
    display: block;
  }
.mechanism-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 12px;
    letter-spacing: 1px;
  }
.mechanism-desc {
    font-size: 14px;
    color: var(--gray-mid);
    line-height: 2;
    font-weight: 300;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
  }
.mechanism-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
  }
.mechanism-tag {
    font-size: 11px;
    color: var(--green-mid);
    background: rgba(82, 183, 136, 0.1);
    border: 1px solid rgba(82, 183, 136, 0.25);
    padding: 4px 12px;
    border-radius: 12px;
    letter-spacing: 1px;
    font-weight: 400;
  }
.mechanism-footnote {
    font-size: 12px;
    color: var(--green-light);
    letter-spacing: 1px;
    font-weight: 400;
    border-top: 1px solid var(--border-light);
    padding-top: 16px;
    margin-top: 4px;
  }
.advantages-section {
    background: var(--green-bg);
    overflow: hidden;
  }
.advantages-scroll-wrapper {
    overflow-x: auto;
    padding-bottom: 16px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--green-mint) transparent;
  }
.advantages-scroll-wrapper::-webkit-scrollbar { height: 4px; }
.advantages-scroll-wrapper::-webkit-scrollbar-thumb { background: var(--green-mint); border-radius: 2px; }
.advantages-track {
    display: flex;
    gap: 20px;
    padding: 8px 4px 8px;
    width: max-content;
  }
.advantage-card {
    background: var(--white);
    border-radius: 20px;
    padding: 36px 32px;
    width: 280px;
    flex-shrink: 0;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    box-shadow: 0 2px 12px rgba(27, 77, 62, 0.06);
  }
.advantage-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(27, 77, 62, 0.12);
  }
.advantage-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    display: block;
  }
.advantage-text {
    font-size: 14px;
    color: var(--gray-dark);
    line-height: 1.8;
    font-weight: 400;
    letter-spacing: 0.5px;
  }
.advantage-text strong {
    color: var(--green-dark);
    font-weight: 700;
    display: block;
    font-size: 15px;
    margin-bottom: 6px;
  }
.products-section {
    background: var(--white);
  }
.products-section .section-inner {
    position: relative;
    z-index: 1;
  }
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
.product-card {
    background: var(--white);
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    transition: all 0.35s ease;
    cursor: pointer;
    border-radius: 20px;
    border: 1px solid var(--border-light);
    box-shadow: 0 2px 12px rgba(27, 77, 62, 0.05);
  }
.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 
      0 20px 60px rgba(27, 77, 62, 0.15),
      0 0 0 1px rgba(82, 183, 136, 0.1),
      inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border-color: var(--green-mint);
  }
.product-img-placeholder {
    width: min(100%, 360px);
    aspect-ratio: 1 / 1;
    height: auto;
    max-height: none;
    background: transparent;
    border-radius: 10px;
    margin: 0 auto 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
  }
.product-img-placeholder img {
    display: block;
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    position: relative;
    z-index: 1;
  }
.product-img-placeholder::after {
    content: none;
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 60%, rgba(27, 77, 62, 0.1) 100%);
  }
.product-number {
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--green-light);
    font-weight: 400;
    margin-bottom: 10px;
  }
.product-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 8px;
    letter-spacing: 1px;
  }
.product-tagline {
    font-size: 13px;
    color: var(--gray-mid);
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
  }
.product-sub {
    font-size: 12px;
    color: var(--gray-light);
    font-weight: 300;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
  }
.product-divider {
    width: 100%;
    height: 1px;
    background: var(--border-light);
    margin-bottom: 20px;
  }
.product-data-label {
    font-size: 10px;
    letter-spacing: 3px;
    color: var(--green-light);
    font-weight: 400;
    margin-bottom: 12px;
    text-transform: uppercase;
  }
.product-data {
    list-style: none;
    margin-bottom: 28px;
    flex: 1;
  }
.product-data li {
    font-size: 13px;
    color: var(--gray-dark);
    padding: 7px 0;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 300;
    letter-spacing: 0.5px;
  }
.product-data li:last-child { border-bottom: none; }
.product-data-value {
    font-weight: 700;
    color: var(--gold);
    font-size: 15px;
    font-family: 'Courier New', monospace;
  }
.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
  }
.product-price {
    font-size: 26px;
    font-weight: 700;
    color: var(--green-dark);
    letter-spacing: -0.5px;
  }
.product-btn {
    font-size: 13px;
    color: var(--white);
    text-decoration: none;
    letter-spacing: 1px;
    font-weight: 500;
    background: var(--green-dark);
    padding: 10px 20px;
    border-radius: 20px;
    transition: all 0.25s;
    cursor: pointer;
    border: none;
    box-shadow: 0 4px 14px rgba(27, 77, 62, 0.2);
  }
.product-btn:hover {
    background: var(--green-mid);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(27, 77, 62, 0.3);
  }
.research-section {
    background:
      linear-gradient(180deg, rgba(241, 248, 244, 0.96), rgba(241, 248, 244, 0.9)),
      url('/wp-content/themes/supersyn/assets/img/research-lab-desktop.jpg') center / cover no-repeat;
    text-align: center;
  }
.research-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 64px;
  }
.research-card {
    background: var(--white);
    padding: 44px 36px;
    text-align: left;
    border-radius: 20px;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    box-shadow: 0 2px 12px rgba(27, 77, 62, 0.06);
  }
.research-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(27, 77, 62, 0.12);
  }
.research-icon {
    width: 46px;
    height: 46px;
    margin-bottom: 20px;
    display: block;
  }
.research-card-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 16px;
    letter-spacing: 1px;
  }
.research-card-stat {
    font-size: 40px;
    font-weight: 900;
    color: var(--green-dark);
    margin-bottom: 8px;
    font-family: 'Courier New', monospace;
    letter-spacing: -1px;
  }
.research-card-stat span {
    color: var(--green-light);
    font-size: 24px;
  }
.research-card-desc {
    font-size: 13px;
    color: var(--gray-mid);
    line-height: 1.9;
    font-weight: 300;
    letter-spacing: 0.5px;
  }
.research-endorsements {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 28px;
    padding-top: 48px;
    border-top: 1px solid var(--border);
  }
.endorsement-item {
    font-size: 12px;
    color: var(--green-mid);
    letter-spacing: 1px;
    font-weight: 400;
    text-align: center;
    line-height: 1.7;
    background: rgba(255,255,255,0.8);
    padding: 10px 18px;
    border-radius: 12px;
    border: 1px solid rgba(82, 183, 136, 0.2);
  }
.endorsement-icon {
    width: 18px;
    height: 18px;
    vertical-align: middle;
    margin-right: 6px;
  }
.news-section {
    background: var(--white);
  }
.news-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 32px;
    margin-bottom: 48px;
  }
.news-header .section-title, .news-header .section-subtitle, .news-header .section-label {
    text-align: left;
  }
.news-header .section-subtitle {
    margin-bottom: 0;
    max-width: 620px;
  }
.news-more {
    flex-shrink: 0;
    color: var(--green-dark);
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--green-light);
    padding-bottom: 6px;
  }
.news-grid {
    display: grid;
    grid-template-columns: 1.25fr 1fr 1fr;
    gap: 24px;
  }
.news-card {
    display: flex;
    flex-direction: column;
    min-height: 420px;
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: 20px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 2px 12px rgba(27, 77, 62, 0.05);
    transition: all 0.35s ease;
  }
.news-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 52px rgba(27, 77, 62, 0.13);
    border-color: var(--green-mint);
  }
.news-cover {
    min-height: 190px;
    background:
      linear-gradient(135deg, rgba(27, 77, 62, 0.08), rgba(82, 183, 136, 0.18)),
      radial-gradient(circle at 82% 22%, rgba(184, 134, 11, 0.16), transparent 30%),
      var(--green-bg);
    position: relative;
    overflow: hidden;
  }
.news-cover.shenzhen {
    background: url('/wp-content/themes/supersyn/assets/img/news-cover-001-shenzhen-exhibition.jpg') center / cover no-repeat;
  }
.news-cover.awards {
    background: url('/wp-content/themes/supersyn/assets/img/news-cover-002-award-name.jpg') center / cover no-repeat;
  }
.news-cover.media {
    background: #1B4D3E;
  }
.news-cover.energy-shenzhen {
    background: url('/wp-content/themes/supersyn/assets/img/news-cover-007-balance-energy-shenzhen.png') center / cover no-repeat;
  }
.news-cover.sports-events {
    background: #2D6A4F;
  }
.news-cover.womens-health {
    background: #2D6A4F;
  }
.news-cover.sca-award {
    background: url('/wp-content/themes/supersyn/assets/img/news-cover-008-sca-award.webp') center 36% / cover no-repeat;
  }
.news-cover.source-lab {
    background: url('/wp-content/themes/supersyn/assets/img/news-cover-009-source-lab.webp') center 35% / cover no-repeat;
  }
.news-cover.official-update, .news-card.featured .news-cover.official-update {
    min-height: 0;
    aspect-ratio: 900 / 383;
  }
.news-cover.official-update::before, .news-cover.official-update::after {
    display: none;
  }
.news-cover::after {
    content: attr(data-label);
    position: absolute;
    left: 24px;
    bottom: 22px;
    color: var(--white);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 3px;
  }
.news-cover::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 36%, rgba(10, 35, 28, 0.48));
  }
.news-card.featured .news-cover {
    min-height: 230px;
  }
.news-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 28px;
  }
.news-meta {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
    color: var(--green-light);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 2px;
  }
.news-card h3 {
    margin-bottom: 14px;
    color: var(--green-dark);
    font-size: 22px;
    line-height: 1.35;
    font-weight: 800;
    letter-spacing: 0;
  }
.news-card p {
    color: var(--gray-mid);
    font-size: 14px;
    line-height: 1.85;
    font-weight: 300;
    letter-spacing: 0.5px;
  }
.news-read {
    margin-top: auto;
    padding-top: 24px;
    color: var(--green-dark);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
  }
.home-faq-section {
    background: var(--white);
  }
.home-faq-layout {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 80px;
    align-items: start;
  }
.home-faq-heading .section-label, .home-faq-heading .section-title {
    text-align: left;
  }
.home-faq-heading .section-label {
    color: var(--gold);
  }
.home-faq-heading .section-title {
    margin-bottom: 22px;
  }
.home-faq-heading p {
    max-width: 380px;
    margin-bottom: 26px;
    color: var(--gray-mid);
    font-size: 15px;
    font-weight: 300;
    line-height: 1.9;
  }
.home-faq-list {
    border-top: 1px solid rgba(27, 77, 62, 0.18);
  }
.home-faq-list details {
    border-bottom: 1px solid rgba(27, 77, 62, 0.18);
  }
.home-faq-list summary {
    position: relative;
    min-height: 82px;
    display: flex;
    align-items: center;
    padding: 20px 52px 20px 0;
    color: var(--green-dark);
    font-size: 18px;
    font-weight: 700;
    line-height: 1.55;
    letter-spacing: 0;
    cursor: pointer;
    list-style: none;
  }
.home-faq-list summary::-webkit-details-marker { display: none; }
.home-faq-list summary::after {
    content: '+';
    position: absolute;
    top: 50%;
    right: 4px;
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    color: var(--green-dark);
    border: 1px solid rgba(27, 77, 62, 0.28);
    border-radius: 50%;
    transform: translateY(-50%);
  }
.home-faq-list details[open] summary::after {
    content: '−';
    color: var(--white);
    background: var(--green-dark);
    border-color: var(--green-dark);
  }
.home-faq-answer {
    padding: 0 52px 26px 0;
    color: var(--gray-mid);
    font-size: 15px;
    font-weight: 300;
    line-height: 1.9;
  }
.home-faq-answer a {
    color: var(--green-mid);
    font-weight: 700;
  }
.home-science-links {
    margin: 14px 0 0;
    padding: 14px 0 0;
    border-top: 1px solid rgba(27, 77, 62, 0.12);
    list-style: none;
  }
.home-science-links li + li {
    margin-top: 8px;
  }
.home-science-links a {
    display: inline;
    line-height: 1.65;
  }
.philosophy-section {
    background:
      linear-gradient(180deg, rgba(10, 35, 28, 0.9), rgba(10, 35, 28, 0.94)),
      url('/wp-content/themes/supersyn/assets/img/brand-philosophy-bg.jpg') center / cover no-repeat;
    text-align: center;
    position: relative;
    overflow: hidden;
  }
.philosophy-section::before {
    content: '';
    position: absolute;
    top: -30%; left: -20%;
    width: 80%; height: 80%;
    background: radial-gradient(ellipse, rgba(82, 183, 136, 0.08) 0%, transparent 70%);
  }
.philosophy-section::after {
    content: '';
    position: absolute;
    bottom: -20%; right: -10%;
    width: 60%; height: 60%;
    background: radial-gradient(ellipse, rgba(149, 213, 178, 0.06) 0%, transparent 70%);
  }
.philosophy-text {
    max-width: 680px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
  }
.philosophy-lead {
    font-size: clamp(20px, 3vw, 30px);
    font-weight: 300;
    color: rgba(255,255,255,0.7);
    line-height: 2.2;
    margin-bottom: 48px;
    letter-spacing: 2px;
  }
.philosophy-mid {
    font-size: clamp(16px, 2vw, 20px);
    font-weight: 400;
    color: rgba(255,255,255,0.85);
    line-height: 2.8;
    margin-bottom: 48px;
    letter-spacing: 2px;
  }
.philosophy-choice {
    font-size: clamp(16px, 2vw, 18px);
    font-weight: 500;
    color: var(--green-mint);
    line-height: 2.8;
    margin-bottom: 56px;
    letter-spacing: 2px;
  }
.philosophy-finale {
    font-size: clamp(28px, 4.5vw, 52px);
    font-weight: 900;
    color: var(--white);
    line-height: 1.4;
    letter-spacing: 1px;
  }
.philosophy-finale em {
    color: var(--green-mint);
    font-style: normal;
  }
.social-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(82, 183, 136, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.25s;
    text-decoration: none;
    color: rgba(255,255,255,0.7);
  }
.social-icon:hover {
    background: rgba(82, 183, 136, 0.2);
    border-color: var(--green-mint);
    color: var(--white);
    transform: translateY(-2px);
  }
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
@media (max-width: 900px) {
section { padding: 80px 24px; }
.mechanism-grid { grid-template-columns: 1fr; }
.products-grid { grid-template-columns: 1fr 1fr; }
.research-grid { grid-template-columns: 1fr; }
.news-header { align-items: flex-start; flex-direction: column; }
.news-grid { grid-template-columns: 1fr; }
.news-card, .news-card.featured { min-height: auto; }
.brand-intro-layout, .home-faq-layout { grid-template-columns: 1fr; gap: 42px; }

}
@media (max-width: 900px) {
.products-grid { grid-template-columns: 1fr; }
.hero-title { font-size: 52px; }

}
.product-data-note {
    font-size: 10px;
    color: var(--gray-light);
    line-height: 1.6;
    margin-top: 8px;
    font-weight: 300;
    letter-spacing: 0.3px;
  }
@media (max-width: 900px) {
.logo-en {
      font-size: 16px;
      letter-spacing: 2px;
    }
.logo-cn {
      font-size: 10px;
      letter-spacing: 3px;
    }
.hero {
      min-height: 100svh;
      padding: 92px 20px 44px;
    }
.hero::before, .hero::after {
      opacity: 0.55;
    }
.hero-eyebrow {
      max-width: 100%;
      margin-bottom: 24px;
      padding: 7px 14px;
      font-size: 10px;
      letter-spacing: 3px;
      line-height: 1.5;
    }
.hero-title {
      font-size: clamp(42px, 14vw, 54px);
      line-height: 1.08;
      letter-spacing: 0;
      margin-bottom: 22px;
    }
.hero-brand {
      font-size: 15px;
      letter-spacing: 4px;
      margin-bottom: 16px;
    }
.hero-desc {
      font-size: 13px;
      line-height: 1.7;
      letter-spacing: 2px;
      margin-bottom: 28px;
    }
.hero-footnote {
      font-size: 10px;
      line-height: 1.7;
      margin-bottom: 24px;
      padding: 0 4px;
    }
.hero-btn {
      width: min(100%, 300px);
      min-height: 48px;
      padding: 0 24px;
      line-height: 48px;
      letter-spacing: 2px;
    }
.hero-scroll {
      display: none;
    }
.hero {
      background:
        linear-gradient(180deg, rgba(248, 255, 248, 0.94) 0%, rgba(248, 255, 248, 0.72) 58%, rgba(248, 255, 248, 0.42) 100%),
        url('/wp-content/themes/supersyn/assets/img/home-hero-mobile.jpg') center / cover no-repeat;
    }
section {
      padding: 64px 20px;
    }
.section-label {
      text-align: left;
      letter-spacing: 3px;
      margin-bottom: 14px;
    }
.section-title, .section-subtitle {
      text-align: left;
    }
.section-title {
      font-size: 30px;
      line-height: 1.18;
      margin-bottom: 14px;
    }
.section-subtitle {
      font-size: 14px;
      line-height: 1.75;
      letter-spacing: 0.5px;
      margin-bottom: 36px;
    }
.brand-intro-title {
      font-size: 36px;
    }
.brand-intro-lead {
      font-size: 15px;
      line-height: 1.9;
    }
.brand-method-item {
      grid-template-columns: 42px minmax(0, 1fr);
      gap: 10px;
      padding: 22px 0;
    }
.brand-method-item h3 {
      font-size: 19px;
    }
.home-faq-layout {
      gap: 32px;
    }
.home-faq-heading p {
      margin-bottom: 20px;
    }
.home-faq-list summary {
      min-height: 76px;
      padding-right: 46px;
      font-size: 17px;
    }
.home-faq-answer {
      padding-right: 0;
      font-size: 14px;
    }
.era-section, .proposition-section, .research-section {
      text-align: left;
    }
.era-lead {
      font-size: 24px;
      line-height: 1.45;
      margin-bottom: 28px;
    }
.era-body {
      font-size: 15px;
      line-height: 2;
      letter-spacing: 0.5px;
    }
.era-emphasis {
      font-size: 17px;
      line-height: 1.8;
      letter-spacing: 1px;
    }
.prop-title {
      margin-bottom: 32px;
      letter-spacing: 3px;
    }
.prop-answer {
      font-size: 34px;
      line-height: 1.25;
      margin-bottom: 32px;
    }
.prop-footnote {
      padding: 22px;
      font-size: 14px;
      line-height: 1.9;
      border-radius: 8px;
    }
.mechanism-card, .product-card, .research-card {
      border-radius: 8px;
      padding: 26px 22px;
      box-shadow: 0 2px 10px rgba(27, 77, 62, 0.05);
    }
.news-header {
      gap: 20px;
      margin-bottom: 30px;
    }
.news-more {
      font-size: 13px;
    }
.news-grid {
      gap: 18px;
    }
.news-card {
      border-radius: 8px;
      min-height: auto;
    }
.news-cover, .news-card.featured .news-cover {
      min-height: 170px;
    }
.news-body {
      padding: 22px;
    }
.news-card h3 {
      font-size: 20px;
      line-height: 1.4;
    }
.mechanism-icon, .research-icon {
      width: 42px;
      height: 42px;
      margin-bottom: 16px;
    }
.advantages-scroll-wrapper {
      margin: 0 -20px;
      padding: 0 20px 18px;
      scroll-snap-type: x proximity;
    }
.advantages-track {
      gap: 14px;
      padding: 4px 0 8px;
    }
.advantage-card {
      width: min(78vw, 280px);
      padding: 24px 20px;
      border-radius: 8px;
      scroll-snap-align: start;
    }
.product-img-placeholder {
      width: 100%;
      aspect-ratio: 1 / 1;
      max-height: none;
      margin-left: 0;
      margin-right: 0;
      margin-bottom: 22px;
      border-radius: 8px;
    }
.product-name {
      font-size: 20px;
    }
.product-data li {
      align-items: flex-start;
      gap: 16px;
      line-height: 1.5;
    }
.product-footer {
      gap: 14px;
    }
.product-price {
      font-size: 24px;
      letter-spacing: 0;
    }
.product-btn {
      min-height: 42px;
      padding: 0 18px;
      white-space: nowrap;
    }
.research-grid {
      gap: 16px;
      margin-bottom: 36px;
    }
.research-endorsements {
      justify-content: flex-start;
      gap: 10px;
      padding-top: 30px;
    }
.endorsement-item {
      text-align: left;
      width: 100%;
    }
.philosophy-lead, .philosophy-mid, .philosophy-choice {
      letter-spacing: 1px;
      line-height: 1.95;
      margin-bottom: 32px;
    }
.philosophy-finale {
      font-size: 34px;
      line-height: 1.35;
      letter-spacing: 0;
    }

}
.hero-title {font-size:clamp(36px,5vw,76px);line-height:1.12;}

/* 商品卡的购买按钮由 button 改成了链接 */
a.product-btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none}