@charset "utf-8";

/* 一字茶 - 首页样式 */

/* ============== Hero 全屏 Banner ============== */
.hero {
    position: relative;
    width: 100%;
    height: 92vh;
    min-height: 600px;
    overflow: hidden;
    background: #0F0F0F;
    margin-top: -80px;
    padding-top: 80px;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-color: #0F0F0F;
    filter: brightness(0.55) saturate(0.85);
    transition: transform 8s;
}
.hero:hover .hero-bg { transform: scale(1.05); }
.hero-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.6) 100%);
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding: 0 30px;
    margin: 0 auto;
    max-width: 1100px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
}
.hero-en {
    font-size: 13px;
    color: #D4AF37;
    letter-spacing: 12px;
    text-transform: uppercase;
    margin-bottom: 26px;
    font-weight: 300;
}
.hero-title {
    font-size: 72px;
    font-weight: 300;
    color: #fff;
    letter-spacing: 18px;
    margin: 0;
    line-height: 1.3;
    text-indent: 18px;
}
.hero-sub {
    font-size: 14px;
    color: rgba(255,255,255,0.85);
    letter-spacing: 6px;
    margin: 28px 0 0;
    font-weight: 300;
}
.hero-line {
    width: 60px;
    height: 1px;
    background: #D4AF37;
    margin: 32px auto;
    opacity: 0.9;
}
.hero-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    letter-spacing: 4px;
    line-height: 2;
    margin: 0 0 50px;
    font-weight: 300;
}
.hero-btn {
    display: inline-block;
    padding: 16px 60px;
    border: 1px solid #D4AF37;
    color: #D4AF37;
    background: transparent;
    font-size: 14px;
    letter-spacing: 8px;
    text-indent: 8px;
    transition: all 0.4s;
    position: relative;
}
.hero-btn:hover {
    background: #D4AF37;
    color: #000;
    letter-spacing: 10px;
}
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,0.5);
    font-size: 11px;
    letter-spacing: 4px;
    z-index: 2;
    animation: scroll-down 2s infinite;
}
@keyframes scroll-down {
    0%, 100% { transform: translate(-50%, 0); opacity: 0.5; }
    50%      { transform: translate(-50%, 8px); opacity: 1; }
}

/* ============== Promise Grid ============== */
.promise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin: 50px 0 0;
    border: 1px solid rgba(212, 175, 55, 0.3);
}
.promise-item {
    text-align: center;
    padding: 50px 30px;
    color: #ccc;
    border-right: 1px solid rgba(212, 175, 55, 0.2);
    transition: all 0.4s;
    position: relative;
}
.promise-item:last-child { border-right: 0; }
.promise-item:hover {
    background: rgba(212, 175, 55, 0.05);
}
.promise-item .num {
    font-size: 48px;
    color: #D4AF37;
    font-weight: 100;
    margin-bottom: 18px;
    letter-spacing: 2px;
}
.promise-item h3 {
    font-size: 18px;
    color: #fff;
    letter-spacing: 4px;
    margin-bottom: 16px;
    font-weight: 400;
}
.promise-item p {
    font-size: 13px;
    color: #999;
    line-height: 1.9;
    letter-spacing: 1px;
}

/* ============== Product Grid ============== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 60px 0 0;
}

/* ============== Bigimage 大图 ============== */
.bigimage {
    position: relative;
    width: 100%;
    height: 540px;
    background-size: cover;
    background-position: center;
    background-color: #0F0F0F;
    overflow: hidden;
}
.bigimage-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.5), rgba(0,0,0,0.4));
}
.bigimage-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    padding: 0 30px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 800px;
}
.bigimage-content .en {
    color: #D4AF37;
    letter-spacing: 10px;
    font-size: 13px;
    margin-bottom: 18px;
}
.bigimage-content h2 {
    color: #fff;
    font-size: 56px;
    font-weight: 300;
    letter-spacing: 14px;
    text-indent: 14px;
    margin: 0;
}
.bigimage-content .line {
    width: 60px;
    height: 1px;
    background: #D4AF37;
    margin: 26px auto;
}
.bigimage-content p {
    color: rgba(255,255,255,0.8);
    letter-spacing: 4px;
    line-height: 2.2;
    font-size: 14px;
    font-weight: 300;
}

/* ============== Story ============== */
.story-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    margin: 30px 0;
}
.story-pic {
    overflow: hidden;
    background: #f5f5f5;
    aspect-ratio: 4/3;
}
.story-pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1s;
}
.story-pic:hover img { transform: scale(1.05); }
.story-text { padding: 0 10px; }

/* ============== News Grid ============== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 60px 0 0;
}
.news-card {
    background: #1a1a1a;
    overflow: hidden;
    transition: all 0.4s;
    display: block;
}
.news-card:hover { transform: translateY(-6px); }
.news-pic {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: #222;
}
.news-pic img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
    filter: brightness(0.9);
}
.news-card:hover .news-pic img { transform: scale(1.05); filter: brightness(1); }
.news-info { padding: 28px 24px 30px; }
.news-date {
    color: #D4AF37;
    font-size: 12px;
    letter-spacing: 3px;
    margin-bottom: 14px;
}
.news-info h3 {
    color: #fff;
    font-size: 17px;
    letter-spacing: 1px;
    margin: 0 0 12px;
    font-weight: 400;
    line-height: 1.6;
}
.news-desc {
    color: #999;
    font-size: 13px;
    line-height: 1.8;
    margin: 0 0 20px;
}
.news-more {
    color: #D4AF37;
    font-size: 12px;
    letter-spacing: 3px;
    border-bottom: 1px solid #D4AF37;
    padding-bottom: 2px;
}

/* ============== Responsive ============== */
@media (max-width: 1100px) {
    .product-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
    .promise-grid { grid-template-columns: repeat(2, 1fr); }
    .promise-item:nth-child(2) { border-right: 0; }
    .promise-item:nth-child(1), .promise-item:nth-child(2) { border-bottom: 1px solid rgba(212,175,55,0.2); }
    .story-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero-title { font-size: 48px; letter-spacing: 10px; text-indent: 10px; }
    .bigimage-content h2 { font-size: 36px; letter-spacing: 8px; }
}
@media (max-width: 720px) {
    .product-grid, .news-grid { grid-template-columns: 1fr; }
    .promise-grid { grid-template-columns: 1fr; }
    .promise-item { border-right: 0; border-bottom: 1px solid rgba(212,175,55,0.2); }
    .promise-item:last-child { border-bottom: 0; }
    .hero-title { font-size: 32px; letter-spacing: 6px; text-indent: 6px; }
    .bigimage { height: 360px; }
    .bigimage-content h2 { font-size: 24px; letter-spacing: 4px; }
}