:root {
    --green-900: #0f5f46;
    --green-800: #14694f;
    --green-700: #1b7559;
    --green-100: #edf6f1;
    --gray-50: #f6f7f9;
    --gray-100: #eef1f4;
    --gray-200: #dde3ea;
    --gray-500: #687585;
    --gray-700: #344054;
    --gray-900: #17212b;
    --white: #ffffff;
    --shadow: 0 14px 40px rgba(16, 24, 40, 0.08);
    --radius: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: var(--gray-50);
    color: var(--gray-900);
}

a { color: inherit; }
.container {
    width: min(1280px, calc(100% - 32px));
    margin: 0 auto;
}
.topbar {
    background: #0a4c37;
    color: rgba(255,255,255,.92);
    font-size: 13px;
}
.topbar-inner {
    min-height: 42px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.topbar-links {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}
.topbar-links a {
    text-decoration: none;
    display: inline-flex;
    gap: 8px;
    align-items: center;
}
.hero-header {
    background: linear-gradient(180deg, var(--green-800) 0%, var(--green-900) 100%);
    color: var(--white);
    padding: 24px 0;
}
.hero-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.brand {
    text-decoration: none;
    display: flex;
    gap: 16px;
    align-items: center;
    color: var(--white);
}
.brand-mark {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    background: rgba(255,255,255,.12);
    display: grid;
    place-items: center;
    font-size: 28px;
}
.brand-top {
    display: block;
    font-size: 14px;
    opacity: .9;
    margin-bottom: 4px;
}
.brand-bottom {
    display: block;
    font-size: 28px;
    line-height: 1.1;
}
.hero-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}
.mobile-menu-btn {
    display: none;
    border: 0;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: rgba(255,255,255,.12);
    color: var(--white);
    font-size: 18px;
}
.header-search {
    width: 380px;
    max-width: 100%;
    display: flex;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.18);
    border-radius: 14px;
    overflow: hidden;
}
.header-search input {
    flex: 1;
    border: 0;
    padding: 14px 16px;
    background: transparent;
    color: var(--white);
    outline: none;
}
.header-search input::placeholder { color: rgba(255,255,255,.78); }
.header-search button {
    border: 0;
    background: transparent;
    color: var(--white);
    width: 52px;
}
.main-nav {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
}
.main-nav-inner {
    min-height: 58px;
    display: flex;
    gap: 24px;
    align-items: center;
    overflow-x: auto;
}
.main-nav-inner a {
    text-decoration: none;
    white-space: nowrap;
    font-weight: 600;
    color: var(--gray-700);
}
.breadcrumb-wrap {
    background: #f2f4f7;
    border-bottom: 1px solid var(--gray-200);
}
.breadcrumb {
    min-height: 54px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    color: var(--gray-500);
    font-size: 14px;
}
.breadcrumb a {
    text-decoration: none;
    color: var(--green-800);
}
.page-main { padding: 28px 0 42px; }
.page-grid {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}
.sidebar-card,
.content-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
}
.sidebar-card {
    position: sticky;
    top: 24px;
    overflow: hidden;
}
.sidebar-title {
    background: linear-gradient(180deg, var(--green-800), var(--green-900));
    color: var(--white);
    padding: 18px 20px;
    font-size: 18px;
    font-weight: 700;
}
.sidebar-menu {
    list-style: none;
    margin: 0;
    padding: 10px;
}
.sidebar-menu a {
    display: block;
    padding: 14px 14px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    color: var(--gray-700);
}
.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: var(--green-100);
    color: var(--green-900);
}
.content-card { padding: 28px; }
.section-tag {
    display: inline-block;
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--green-100);
    color: var(--green-900);
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 14px;
}
.content-header h1 {
    margin: 0 0 10px;
    font-size: clamp(30px, 4vw, 42px);
    line-height: 1.05;
}
.content-header p {
    margin: 0;
    color: var(--gray-500);
    font-size: 16px;
    line-height: 1.7;
    max-width: 820px;
}
.faq-search-box {
    margin-top: 28px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--gray-200);
    border-radius: 14px;
    padding: 0 16px;
    background: #fbfcfd;
}
.faq-search-box i { color: var(--gray-500); }
.faq-search-box input {
    border: 0;
    outline: none;
    background: transparent;
    width: 100%;
    padding: 16px 0;
    font-size: 15px;
}
.faq-list { display: grid; gap: 14px; }
.faq-item {
    border: 1px solid var(--gray-200);
    border-radius: 14px;
    overflow: hidden;
    background: #fff;
}
.faq-question {
    width: 100%;
    border: 0;
    background: transparent;
    padding: 18px 20px;
    text-align: left;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 17px;
    font-weight: 700;
    color: var(--gray-900);
    cursor: pointer;
}
.faq-question i {
    transition: transform .2s ease;
    color: var(--green-800);
}
.faq-item.open .faq-question i { transform: rotate(45deg); }
.faq-answer {
    display: none;
    padding: 0 20px 20px;
    color: var(--gray-500);
    line-height: 1.8;
    font-size: 15px;
}
.faq-item.open .faq-answer { display: block; }
.empty-filter {
    display: none;
    padding: 20px;
    border-radius: 14px;
    background: #fff5f5;
    border: 1px solid #ffd4d4;
    color: #9f2c2c;
    margin-top: 16px;
}
.site-footer {
    background: linear-gradient(180deg, #0b4d38 0%, #083e2d 100%);
    color: var(--white);
    margin-top: 32px;
}
.footer-main { padding: 44px 0 30px; }
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr .9fr;
    gap: 28px;
}
.footer-col h3 {
    margin: 0 0 16px;
    font-size: 18px;
}
.footer-col p,
.footer-col li,
.footer-contact-list span {
    color: rgba(255,255,255,.9);
    font-size: 14px;
    line-height: 1.8;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-col a {
    text-decoration: none;
}
.footer-contact-list {
    display: grid;
    gap: 8px;
    margin-top: 14px;
}
.footer-contact-list span {
    display: inline-flex;
    gap: 10px;
    align-items: flex-start;
}
.footer-top-link {
    display: inline-flex;
    margin-top: 12px;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255,255,255,.12);
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.12);
    background: rgba(0,0,0,.08);
}
.footer-bottom-inner {
    min-height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 13px;
}

@media (max-width: 1024px) {
    .page-grid { grid-template-columns: 1fr; }
    .sidebar-card { position: static; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .topbar-inner,
    .hero-inner { flex-direction: column; align-items: stretch; }
    .topbar-links.right { justify-content: flex-start; }
    .mobile-menu-btn { display: inline-grid; place-items: center; }
    .hero-actions { justify-content: space-between; }
    .main-nav-inner { gap: 18px; }
    .sidebar { display: none; }
    .sidebar.show { display: block; }
    .content-card { padding: 22px; }
    .footer-grid { grid-template-columns: 1fr; }
    .brand-bottom { font-size: 22px; }
}