:root {
    --color-primary: #0b5c4a;
    --color-primary-dark: #073b2f;
    --color-accent: #f97316;
    --color-surface: #eef6f3;
    --color-text: #0f172a;
    --rgb-primary: 11,92,74;
    --rgb-accent: 249,115,22;

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --shadow-sm: 0 3px 8px rgba(2, 44, 36, .10), 0 1px 0 rgba(255,255,255,.65);
    --shadow-md: 0 6px 16px rgba(2, 44, 36, .12), 0 2px 6px rgba(15, 23, 42, .06);
    --shadow-lg: 0 14px 34px rgba(2, 44, 36, .16), 0 10px 22px rgba(15, 23, 42, .10);

    --space-section: 4rem;
    --space-card: 1.5rem;
    --space-gap: 1.25rem;

    --transition: 420ms cubic-bezier(.16, 1, .3, 1);
    --heading-weight: 800;
    --body-line-height: 1.65;

    --card-bg: rgba(255, 255, 255, .92);
    --card-border: rgba(2, 44, 36, .12);
    --focus-ring: rgba(249,115,22,.35);
    --page-bg: #f3f6f7;
}

/* 基础覆盖 */
body { color: var(--color-text); line-height: var(--body-line-height); background: radial-gradient(1200px 600px at 20% -10%, rgba(45, 212, 191, .12) 0%, rgba(45, 212, 191, 0) 55%), radial-gradient(900px 500px at 90% 10%, rgba(249,115,22,.10) 0%, rgba(249,115,22, 0) 58%), linear-gradient(180deg, var(--page-bg) 0%, #f7faf9 100%); }
h1, h2, h3, h4 { font-weight: var(--heading-weight); letter-spacing: -0.015em; }
section, .section { padding-top: var(--space-section); padding-bottom: var(--space-section); }
.card, [class*="card"] {
    border-radius: calc(var(--radius-lg) + 2px);
    box-shadow:
        0 4px 10px rgba(2, 44, 36, 0.08),
        0 16px 38px rgba(2, 44, 36, 0.14),
        0 1px 0 rgba(255,255,255,.7) inset;
    padding: var(--space-card);
    transition: box-shadow 480ms cubic-bezier(.16, 1, .3, 1), transform 420ms cubic-bezier(.16, 1, .3, 1), border-color 420ms cubic-bezier(.16, 1, .3, 1), background 420ms cubic-bezier(.16, 1, .3, 1);
    background:
        linear-gradient(180deg, rgba(255,255,255,.98) 0%, rgba(255,255,255,.88) 100%);
    border: 1px solid rgba(2, 44, 36, .10);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.btn, button[class*="btn"], a[class*="btn"] {
    border-radius: var(--radius-md);
    transition: transform 420ms cubic-bezier(.16, 1, .3, 1), background 420ms cubic-bezier(.16, 1, .3, 1), box-shadow 420ms cubic-bezier(.16, 1, .3, 1), color 420ms cubic-bezier(.16, 1, .3, 1), border-color 420ms cubic-bezier(.16, 1, .3, 1);
    box-shadow: 0 8px 22px rgba(2, 44, 36, .14), 0 2px 6px rgba(15, 23, 42, .06);
}
a:not([class]) { color: var(--color-primary); transition: var(--transition); text-shadow: 0 1px 0 rgba(255,255,255,.6); }

/* ========== Section Layout Variants ========== */

/* news: list-view */
/* 列表模式 (图左文右) */
                .news-grid { display: flex; flex-direction: column; gap: var(--space-gap); }
                .news-grid .card { display: grid; grid-template-columns: 280px 1fr; }
                .news-grid .card {
                    background:
                        linear-gradient(180deg, rgba(255,255,255,.98) 0%, rgba(255,255,255,.86) 100%);
                    border-color: rgba(2, 44, 36, .12);
                }

/* features: grid-3 */
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-gap); }
.feature-list .card { border-color: rgba(2, 44, 36, .10); }

/* hero: left-aligned */
.hero-content { text-align: left; max-width: 600px; }
.hero-content { text-shadow: 0 2px 10px rgba(15, 23, 42, .06); }

/* testimonials: stacked */
/* 垂直堆叠 */
                .testimonial-list { display: flex; flex-direction: column; gap: var(--space-gap); max-width: 720px; margin: 0 auto; }
                .testimonial-list .card { border-radius: calc(var(--radius-lg) + 4px); background: linear-gradient(180deg, rgba(255,255,255,.98) 0%, rgba(255,255,255,.84) 100%); }

/* partners: grid-6 */
.partner-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-gap); align-items: center; }

/* faq: two-column */
.faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-gap); }
.faq-list .card { border-color: rgba(2, 44, 36, .11); }

/* stats: inline */
/* 水平排列 */
                .stats-grid { display: flex; justify-content: center; gap: 3rem; }
                .stats-grid .card { box-shadow: var(--shadow-sm), 0 22px 60px rgba(2, 44, 36, .08); }

/* cta: split */
.cta-inner { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2rem; }
.cta-inner .card { border-radius: var(--radius-xl); }

/* Page Layout: wide */
/* 超宽 */
            .page-main { max-width: 1400px; margin: 0 auto; }

/* 条件性装饰 */
.card:hover, [class*="card"]:hover {
    transform: translateY(-6px);
    box-shadow:
        0 10px 22px rgba(2, 44, 36, 0.10),
        0 24px 58px rgba(2, 44, 36, 0.18),
        0 1px 0 rgba(255,255,255,.75) inset;
    border-color: rgba(249,115,22,.30);
}
.hero, [class*="hero"], section:first-of-type {
    background:
        radial-gradient(900px 420px at 15% 10%, rgba(45, 212, 191, .35) 0%, rgba(45, 212, 191, 0) 55%),
        radial-gradient(700px 360px at 88% 22%, rgba(249,115,22,.25) 0%, rgba(249,115,22,0) 60%),
        linear-gradient(135deg, #0b5c4a 0%, #073b2f 100%);
    color: rgba(255,255,255,.94);
    box-shadow: 0 18px 70px rgba(7, 59, 47, .18);
}
header, .header, .navbar { background: transparent; }

/* Responsive */
@media (max-width: 1024px) {
    .news-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .feature-list { grid-template-columns: repeat(2, 1fr) !important; }
    .partner-grid { grid-template-columns: repeat(3, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .hero-inner { grid-template-columns: 1fr !important; }
}
@media (max-width: 640px) {
    :root { --space-section: 2rem; --space-card: 1rem; --space-gap: 0.75rem; --radius-lg: 18px; }
    .news-grid { grid-template-columns: 1fr !important; }
    .feature-list { grid-template-columns: 1fr !important; }
    .faq-list { grid-template-columns: 1fr !important; }
    .testimonial-list { column-count: 1 !important; }
    .partner-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .stats-grid { grid-template-columns: repeat(2, 1fr) !important; }
    .cta-inner { grid-template-columns: 1fr !important; }
}