/* 首页专属样式：对齐小程序的纸张、炭笔边框和橙色主色。 */
.sketch-stage {
    position: relative;
    z-index: 1;
    padding: 54px 0 104px;
    overflow: hidden;
}

.hero-creative,
.artist-showcase,
.exploration-map,
.sketch-library,
.latest-feed,
.feature-showcase-section,
.steps-section,
.seo-resource-center {
    width: min(1504px, calc(100% - 96px));
    margin-right: auto;
    margin-left: auto;
}

.hero-creative {
    display: grid;
    grid-template-columns: minmax(620px, 0.95fr) minmax(0, 1.05fr);
    gap: 60px;
    align-items: center;
    min-height: 560px;
    margin-bottom: 112px;
}

.hero-content,
.section-intro,
.section-intro-row > div,
.shelf-content,
.feed-content,
.polaroid-info {
    min-width: 0;
}

.sketch-title {
    max-width: 760px;
    margin: 0 0 20px;
    color: var(--sketch-ink);
    font-size: 44px;
    font-weight: 900;
    line-height: 1.16;
    white-space: nowrap;
}

@media (max-width: 768px) {
    .sketch-title { white-space: normal; }
}

.sketch-title span {
    position: relative;
    display: inline-block;
    color: var(--sketch-accent);
}

.sketch-title span::after {
    content: '';
    position: absolute;
    left: 2px;
    right: 0;
    bottom: 8px;
    height: 12px;
    background: rgba(242, 138, 54, 0.18);
    border-radius: 100% 10% 100% 10% / 10% 100% 10% 100%;
    z-index: -1;
    transform: rotate(-1deg);
}

.sketch-subtitle {
    max-width: 690px;
    margin: 0 0 34px;
    color: var(--sketch-ink-muted);
    font-size: 20px;
    font-weight: 600;
    line-height: 1.68;
}

.hero-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
}

.sketch-btn-primary,
.sketch-btn-outline,
.more-link,
.sketch-btn-sm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    min-height: 48px;
    padding: 11px 30px;
    border: 3px solid var(--sketch-ink);
    border-radius: 14px 22px 16px 20px / 16px 18px 14px 22px;
    color: var(--sketch-ink);
    font-size: 17px;
    font-weight: 900;
    line-height: 1.2;
    text-align: center;
    cursor: pointer;
    transition: transform 0.18s, box-shadow 0.18s, background 0.18s;
}

.sketch-btn-primary,
.sketch-btn-sm {
    background: var(--sketch-accent);
    color: #fff;
    box-shadow: 5px 7px 0 var(--sketch-ink);
}

.sketch-btn-outline,
.more-link {
    background: #fff;
    box-shadow: 5px 7px 0 var(--sketch-ink);
}

.sketch-btn-primary:hover,
.sketch-btn-outline:hover,
.more-link:hover,
.sketch-btn-sm:hover {
    transform: translate(-3px, -3px);
    box-shadow: 8px 10px 0 var(--sketch-ink);
}

.sketch-btn-primary:active,
.sketch-btn-outline:active,
.more-link:active,
.sketch-btn-sm:active {
    transform: translate(3px, 4px);
    box-shadow: 2px 2px 0 var(--sketch-ink);
}

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    min-height: 430px;
}

.hero-masterpiece {
    position: relative;
    width: 100%;
    max-width: 690px;
    padding: 16px 16px 28px;
    background: #fff;
    border: 4px solid var(--sketch-ink);
    border-radius: 18px 26px 20px 22px / 20px 18px 24px 16px;
    box-shadow: 12px 12px 0 rgba(61, 57, 53, 0.22);
    transform: rotate(1deg);
}

.hero-masterpiece::before {
    display: none;
}

.masterpiece-img {
    width: 100%;
    aspect-ratio: 1024 / 765;
    object-fit: contain;
    background: #fff;
    border: 2px solid rgba(61, 57, 53, 0.18);
    border-radius: 8px;
}

.hero-side-sample {
    position: absolute;
    z-index: 4;
    width: 30%;
    min-width: 150px;
    padding: 8px 8px 18px;
    background: #fff;
    border: 3px solid var(--sketch-ink);
    border-radius: 12px 18px 12px 16px;
    box-shadow: 7px 7px 0 rgba(61, 57, 53, 0.16);
}

.hero-side-sample img {
    width: 100%;
    aspect-ratio: 1024 / 765;
    object-fit: contain;
    background: #fff;
}

.sample-left {
    left: -54px;
    bottom: -36px;
    transform: rotate(-5deg);
}

.sample-right {
    right: -44px;
    top: -36px;
    transform: rotate(4deg);
}

.gallery-tag {
    position: absolute;
    right: -92px;
    bottom: 22px;
    z-index: 6;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 184px;
    padding: 14px 14px 16px;
    background: #fff;
    border: 3px solid var(--sketch-ink);
    border-radius: 18px 24px 16px 22px / 20px 16px 24px 18px;
    box-shadow: 8px 9px 0 rgba(61, 57, 53, 0.16);
    transform: rotate(-2deg);
}

.gallery-tag::before {
    display: none;
}

.tag-qr {
    width: 146px;
    height: 146px;
    flex: 0 0 auto;
    order: 1;
}

.tag-qr img {
    width: 100%;
    height: 100%;
    padding: 8px;
    background: #fff;
    border: 2px solid rgba(61, 57, 53, 0.18);
    border-radius: 10px;
}

.tag-copy {
    min-width: 0;
    order: 2;
    text-align: center;
}

.tag-copy span {
    display: block;
    margin-bottom: 3px;
    color: var(--sketch-ink-muted);
    font-size: 12px;
    font-weight: 800;
}

.tag-copy strong {
    display: block;
    color: var(--sketch-ink);
    font-size: 15px;
    font-weight: 900;
    line-height: 1.3;
}

.artist-showcase,
.sketch-library,
.home-paths {
    margin-bottom: 96px;
}

.exploration-map {
    margin-bottom: 46px;
}

.section-intro {
    margin-bottom: 24px;
}

.section-intro-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 28px;
}

.hand-written {
    margin: 0;
    color: var(--sketch-ink);
    font-size: 38px;
    font-weight: 900;
    line-height: 1.2;
}

.section-intro-row p,
.section-intro p {
    max-width: 560px;
    margin: 8px 0 0;
    color: var(--sketch-ink-muted);
    font-size: 16px;
    font-weight: 600;
}

.polaroid-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.polaroid-card {
    position: relative;
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding: 14px 14px 30px;
    background: #fff;
    border: 3px solid var(--sketch-ink);
    border-radius: 16px 22px 18px 20px;
    box-shadow: 8px 8px 0 rgba(61, 57, 53, 0.18);
    transform: rotate(var(--rotation, 0deg));
    transition: transform 0.2s, box-shadow 0.2s;
}

.polaroid-card::before {
    content: '';
    position: absolute;
    top: -9px;
    left: 34px;
    width: 56px;
    height: 18px;
    background: rgba(242, 138, 54, 0.16);
    border: 1px solid rgba(61, 57, 53, 0.12);
    border-radius: 6px;
    transform: rotate(-3deg);
}

.polaroid-card::after {
    content: '';
    position: absolute;
    right: 18px;
    bottom: 17px;
    width: 42px;
    height: 7px;
    background: rgba(242, 138, 54, 0.16);
    border-radius: 100% 20% 100% 18% / 38% 100% 42% 100%;
    transform: rotate(-2deg);
    pointer-events: none;
}

.polaroid-card:nth-child(even) { --rotation: 1deg; }
.polaroid-card:nth-child(3n) { --rotation: -1deg; }
.polaroid-card:nth-child(3n+1) { --rotation: 0.6deg; }

.polaroid-card:hover {
    transform: translate(-4px, -4px) rotate(0deg);
    box-shadow: 12px 12px 0 rgba(61, 57, 53, 0.22);
}

.polaroid-img {
    aspect-ratio: 1024 / 765;
    margin-bottom: 18px;
    overflow: hidden;
    background: #fff;
    border: 2px solid rgba(61, 57, 53, 0.18);
    border-radius: 8px;
}

.polaroid-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #fff;
}

.polaroid-info h3,
.shelf-content h3,
.latest-topic-body h3 {
    margin: 0 0 8px;
    color: var(--sketch-ink);
    font-size: 20px;
    font-weight: 900;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.polaroid-info p,
.shelf-content p,
.latest-topic-body p,
.path-card p {
    margin: 0;
    color: var(--sketch-ink-muted);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.65;
    overflow-wrap: anywhere;
}

.polaroid-info p.case-desc {
    margin: 0 0 16px;
    color: var(--sketch-ink-muted);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px dashed rgba(61, 57, 53, 0.15);
    padding-top: 12px;
}

.case-tag {
    font-size: 12px;
    color: var(--sketch-accent);
    background: rgba(242, 138, 54, 0.1);
    padding: 3px 8px;
    border-radius: 6px;
    font-weight: 800;
}

.case-link {
    font-size: 13px;
    color: var(--sketch-ink);
    font-weight: 800;
    text-decoration: none;
    transition: color 0.2s;
}

.case-link:hover {
    color: var(--sketch-accent);
}

/* 富文本功能清单 */
.feature-benefits {
    list-style: none;
    padding: 0;
    margin: 20px 0 30px;
}

.feature-benefits li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    font-size: 16px;
    font-weight: 700;
    color: var(--sketch-ink);
}

.feature-benefits li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 2px;
    color: #fff;
    background: var(--sketch-accent);
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

/* 痛点对比模块 */
.comparison-section {
    padding: 80px 0;
    background: #fff;
    border-top: 3px solid var(--sketch-ink);
    border-bottom: 3px solid var(--sketch-ink);
    margin-bottom: 120px;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.compare-card {
    padding: 40px;
    border: 3px solid var(--sketch-ink);
    border-radius: 20px;
    box-shadow: 8px 8px 0 rgba(61, 57, 53, 0.1);
    position: relative;
}

.compare-card.bad {
    background: #fdfbf7;
    border-color: rgba(61, 57, 53, 0.3);
    opacity: 0.8;
}

.compare-card.good {
    background: #fff;
    transform: scale(1.05);
    box-shadow: 12px 12px 0 var(--sketch-accent);
    border-color: var(--sketch-ink);
    z-index: 2;
}

.compare-title {
    font-size: 24px;
    font-weight: 900;
    margin-bottom: 20px;
    text-align: center;
}

.compare-list {
    list-style: none;
    padding: 0;
}

.compare-list li {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
}

.compare-card.bad .compare-list li::before {
    content: '✕';
    position: absolute;
    left: 0;
    color: #999;
}

.compare-card.good .compare-list li::before {
    content: '⭐';
    position: absolute;
    left: 0;
}

.mindmap-card {
    position: relative;
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
        "title mark"
        "count mark"
        "action mark";
    column-gap: 18px;
    row-gap: 8px;
    min-height: 138px;
    padding: 24px 24px 20px;
    overflow: hidden;
    background: #fff;
    border: 3px solid var(--sketch-ink);
    border-radius: 18px 26px 16px 22px / 20px 16px 26px 18px;
    box-shadow: 7px 8px 0 rgba(61, 57, 53, 0.14);
    transition: transform 0.18s, box-shadow 0.18s, background 0.18s;
}

.mindmap-card:nth-child(3n + 1) {
    transform: rotate(-0.4deg);
}

.mindmap-card:nth-child(3n + 2) {
    transform: rotate(0.35deg);
}

.mindmap-card::after {
    content: '';
    position: absolute;
    right: 22px;
    bottom: 18px;
    width: 44px;
    height: 7px;
    background: rgba(242, 138, 54, 0.16);
    border-radius: 50%;
    transform: rotate(-3deg);
}

.mindmap-card:hover {
    background: #fffaf4;
    transform: translate(-3px, -3px) rotate(0deg);
    box-shadow: 10px 11px 0 rgba(61, 57, 53, 0.18);
}

.card-large,
.card-small,
.card-medium {
    grid-column: auto;
}

.mindmap-card .category-mark {
    grid-area: mark;
    position: relative;
    align-self: start;
    width: 48px;
    height: 48px;
    background: #fff7ef;
    border: 2px solid rgba(61, 57, 53, 0.26);
    border-radius: 16px 22px 14px 20px / 18px 14px 22px 16px;
    transform: rotate(2deg);
}

.mindmap-card .category-mark::before,
.mindmap-card .category-mark::after {
    content: '';
    position: absolute;
    display: block;
}

.mindmap-card .category-mark::before {
    left: 14px;
    top: 24px;
    width: 10px;
    height: 5px;
    border-left: 4px solid var(--sketch-accent);
    border-bottom: 4px solid var(--sketch-accent);
    transform: rotate(-45deg);
}

.mindmap-card .category-mark::after {
    right: 11px;
    top: 13px;
    width: 8px;
    height: 8px;
    background: var(--sketch-accent);
    border-radius: 999px;
}

.mindmap-card:nth-child(4n + 2) .category-mark {
    border-radius: 999px 44% 999px 52% / 52% 999px 44% 999px;
    transform: rotate(-4deg);
}

.mindmap-card:nth-child(4n + 2) .category-mark::before {
    left: 12px;
    top: 13px;
    width: 8px;
    height: 8px;
    border: 0;
    background: var(--sketch-accent);
    border-radius: 999px;
    box-shadow: 14px 0 0 rgba(242, 138, 54, 0.55), 7px 14px 0 rgba(242, 138, 54, 0.78);
    transform: rotate(-8deg);
}

.mindmap-card:nth-child(4n + 2) .category-mark::after {
    display: none;
}

.mindmap-card:nth-child(4n + 3) .category-mark {
    border-radius: 16px 13px 21px 14px / 13px 19px 14px 21px;
    transform: rotate(5deg);
}

.mindmap-card:nth-child(4n + 3) .category-mark::before {
    left: 13px;
    top: 13px;
    width: 20px;
    height: 20px;
    border: 0;
    background:
        linear-gradient(var(--sketch-accent), var(--sketch-accent)) center / 20px 4px no-repeat,
        linear-gradient(var(--sketch-accent), var(--sketch-accent)) center / 4px 20px no-repeat;
    transform: rotate(42deg);
}

.mindmap-card:nth-child(4n + 3) .category-mark::after {
    display: none;
}

.mindmap-card:nth-child(4n + 4) .category-mark {
    border-radius: 13px 21px 16px 18px / 20px 14px 19px 13px;
    transform: rotate(-2deg);
}

.mindmap-card:nth-child(4n + 4) .category-mark::before {
    left: 11px;
    top: 18px;
    width: 25px;
    height: 10px;
    border: 0;
    background:
        radial-gradient(circle at 4px 5px, var(--sketch-accent) 0 3px, transparent 3px),
        radial-gradient(circle at 13px 5px, var(--sketch-accent) 0 3px, transparent 3px),
        radial-gradient(circle at 22px 5px, var(--sketch-accent) 0 3px, transparent 3px);
    transform: rotate(-8deg);
}

.mindmap-card:nth-child(4n + 4) .category-mark::after {
    display: none;
}

.mindmap-card > strong {
    grid-area: title;
    align-self: start;
    color: var(--sketch-ink);
    font-size: 22px;
    font-weight: 900;
    line-height: 1.3;
    overflow-wrap: anywhere;
}

.mindmap-card .category-count {
    grid-area: count;
    color: var(--sketch-ink-muted);
    font-size: 14px;
    font-weight: 800;
}

.mindmap-card em {
    grid-area: action;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    width: fit-content;
    color: var(--sketch-accent);
    font-size: 14px;
    font-style: normal;
    font-weight: 900;
}

.mindmap-card em::after {
    content: '→';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    color: var(--sketch-accent);
    font-size: 18px;
    font-weight: 900;
    line-height: 1;
    transform: translateY(-1px);
    transition: transform 0.18s, color 0.18s;
}

.mindmap-card:hover em::after {
    color: var(--sketch-accent-hover);
    transform: translate(4px, -1px);
}

.home-paths {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    width: min(1504px, calc(100% - 96px));
    margin-top: 62px;
    margin-right: auto;
    margin-left: auto;
}

.path-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 18px;
    min-height: 146px;
    padding: 24px 30px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.78);
    border: 2px solid rgba(61, 57, 53, 0.82);
    border-radius: 18px 24px 16px 22px / 18px 20px 22px 16px;
    box-shadow: 6px 7px 0 rgba(61, 57, 53, 0.12);
    transition: transform 0.2s, box-shadow 0.2s;
}

.path-card::after {
    display: none;
}

.path-card::before {
    display: none;
}

.path-card:hover {
    transform: translate(-3px, -3px) rotate(-0.3deg);
    box-shadow: 9px 10px 0 rgba(61, 57, 53, 0.16);
}

.path-copy {
    position: relative;
    z-index: 1;
    flex: 1 1 auto;
    min-width: 0;
    padding-right: 6px;
}

.path-copy span {
    display: inline-flex;
    margin-bottom: 10px;
    padding: 2px 9px;
    color: var(--sketch-accent);
    background: rgba(242, 138, 54, 0.1);
    border: 1px solid rgba(61, 57, 53, 0.16);
    border-radius: 12px 16px 10px 14px / 14px 10px 16px 12px;
    font-size: 13px;
    font-weight: 900;
    transform: rotate(-1deg);
}

.path-copy strong {
    display: block;
    margin-bottom: 8px;
    color: var(--sketch-ink);
    font-size: 24px;
    font-weight: 900;
    line-height: 1.25;
}

.path-icon {
    position: relative;
    z-index: 1;
    flex: 0 0 auto;
    width: 58px;
    height: 58px;
    background:
        linear-gradient(var(--sketch-accent), var(--sketch-accent)) 16px 15px / 27px 4px no-repeat,
        linear-gradient(var(--sketch-accent), var(--sketch-accent)) 16px 27px / 27px 4px no-repeat,
        linear-gradient(var(--sketch-accent), var(--sketch-accent)) 16px 39px / 27px 4px no-repeat,
        rgba(242, 138, 54, 0.06);
    border: 2px solid rgba(61, 57, 53, 0.18);
    border-radius: 15px 19px 14px 17px / 17px 14px 19px 15px;
    transform: rotate(-3deg);
}

.path-arrow {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    width: 42px;
    height: 42px;
    color: var(--sketch-accent);
    background: rgba(242, 138, 54, 0.08);
    border: 2px solid rgba(61, 57, 53, 0.16);
    border-radius: 14px 18px 13px 16px / 16px 13px 18px 14px;
    font-size: 26px;
    font-style: normal;
    font-weight: 900;
    line-height: 1;
    transform: rotate(-2deg);
}

.path-primary {
    background: rgba(255, 241, 228, 0.72);
}

.shelf-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(440px, 1fr));
    gap: 24px;
}

.shelf-item {
    display: flex;
    gap: 20px;
    min-width: 0;
    padding: 18px;
    background: #fff;
    border: 3px solid var(--sketch-ink);
    border-radius: 16px 22px 18px 20px;
    box-shadow: 7px 7px 0 rgba(61, 57, 53, 0.14);
    transition: transform 0.2s, box-shadow 0.2s;
}

.shelf-item:hover {
    transform: translate(-3px, -3px);
    box-shadow: 10px 10px 0 rgba(61, 57, 53, 0.18);
}

.shelf-cover {
    width: 168px;
    aspect-ratio: 1024 / 765;
    flex: 0 0 auto;
    overflow: hidden;
    background: #fff;
    border: 2px solid rgba(61, 57, 53, 0.18);
    border-radius: 8px;
}

.shelf-cover img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #fff;
}

.shelf-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.shelf-category {
    width: fit-content;
    margin-bottom: 8px;
    padding: 2px 9px;
    color: var(--sketch-accent);
    background: rgba(242, 138, 54, 0.1);
    border: 1px solid rgba(61, 57, 53, 0.18);
    border-radius: 10px 14px 9px 12px / 12px 9px 14px 10px;
    font-size: 12px;
    font-weight: 900;
    transform: rotate(-1deg);
}

.latest-topic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 26px;
}

.latest-topic-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: #fff;
    border: 3px solid var(--sketch-ink);
    border-radius: 16px 22px 18px 20px;
    box-shadow: 8px 8px 0 rgba(61, 57, 53, 0.15);
    transition: transform 0.2s, box-shadow 0.2s;
}

.latest-topic-card:hover {
    transform: translate(-4px, -4px) rotate(0.4deg);
    box-shadow: 12px 12px 0 rgba(61, 57, 53, 0.2);
}

.latest-topic-cover {
    aspect-ratio: 1024 / 765;
    background: #fff;
    border-bottom: 2px solid rgba(61, 57, 53, 0.2);
}

.latest-topic-cover img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #fff;
}

.latest-topic-body {
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
    padding: 18px 18px 22px;
}

.latest-topic-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 10px;
    color: var(--sketch-ink-muted);
    font-size: 12px;
    font-weight: 800;
}

.latest-topic-meta span {
    color: var(--sketch-accent);
}

@media (max-width: 1100px) {
    .hero-creative {
        grid-template-columns: 1fr;
        gap: 48px;
        min-height: 0;
    }

    .hero-visual {
        justify-content: center;
        margin-top: 20px;
    }
    
    .hero-side-sample {
        display: none; /* 小屏幕隐藏边缘堆叠，防止超出屏幕 */
    }
    
    .gallery-tag {
        right: -10px;
        transform: scale(0.85);
        transform-origin: right bottom;
    }
}

@media (max-width: 900px) {
    .sketch-stage {
        padding-top: 34px;
        padding-bottom: 78px;
    }

    .hero-creative,
    .artist-showcase,
    .exploration-map,
    .sketch-library,
    .home-paths,
    .latest-feed {
        width: min(100% - 32px, 1504px);
    }

    .hero-creative,
    .artist-showcase,
    .exploration-map,
    .sketch-library,
    .home-paths {
        margin-bottom: 76px;
    }

    .sketch-title {
        font-size: 38px;
        white-space: normal;
    }

    .sketch-subtitle {
        max-width: 620px;
        font-size: 18px;
    }

    .hero-masterpiece {
        transform: rotate(0deg);
    }

    .hero-side-sample {
        display: none;
    }

    .gallery-tag {
        right: 12px;
        bottom: 12px;
        width: 176px;
    }

    .hand-written {
        font-size: 30px;
    }

    .mindmap-grid,
    .home-paths,
    .shelf-grid {
        grid-template-columns: 1fr;
    }

    .card-large,
    .card-small,
    .card-medium {
        grid-column: auto;
    }
}

@media (max-width: 560px) {
    .sketch-stage {
        padding-top: 26px;
    }

    .section-intro-row,
    .hero-btns,
    .shelf-item,
    .latest-topic-meta {
        flex-direction: column;
        align-items: stretch;
    }

    .sketch-title {
        font-size: 32px;
    }

    .sketch-subtitle {
        max-width: none;
        font-size: 16px;
    }

    .sketch-btn-primary,
    .sketch-btn-outline,
    .more-link,
    .sketch-btn-sm {
        width: 100%;
    }

    .hero-masterpiece,
    .polaroid-card,
    .mindmap-card,
    .shelf-item,
    .path-card,
    .latest-topic-card {
        border-width: 3px;
        box-shadow: 6px 6px 0 rgba(61, 57, 53, 0.16);
    }

    .mindmap-card {
        min-height: 132px;
        padding: 20px;
    }

    .mindmap-card .category-mark {
        width: 38px;
        height: 38px;
    }

    .mindmap-card .category-mark::after {
        margin: 15px 0 0 11px;
    }

    .gallery-tag {
        position: static;
        justify-items: center;
        max-width: none;
        margin-top: 12px;
        width: 100%;
        transform: none;
    }

    .tag-copy {
        order: 2;
        text-align: center;
    }

    .tag-qr {
        order: 1;
        width: 148px;
        height: 148px;
    }

    .path-card {
        align-items: center;
        flex-wrap: wrap;
        padding: 24px;
    }

    .path-icon {
        width: 52px;
        height: 52px;
    }

    .path-copy {
        flex-basis: calc(100% - 70px);
    }

    .path-arrow {
        margin-left: auto;
    }

    .polaroid-gallery {
        grid-template-columns: 1fr;
        gap: 22px;
    }

    .mindmap-card {
        min-height: 0;
        padding: 24px;
    }

    .shelf-cover {
        width: 100%;
    }

    .path-card {
        min-height: 0;
    }
}

/* --- 高端官网改版：错落式功能介绍模块 --- */
.feature-showcase-section {
    padding: 120px 0;
}

.feature-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 100px;
    margin-bottom: 120px;
}

.feature-row:nth-child(even) {
    flex-direction: row-reverse;
}

.feature-visual-box {
    flex: 1;
    max-width: 460px;
    position: relative;
    padding: 12px;
    background: #fff;
    border: 3px solid var(--sketch-ink);
    border-radius: 20px 28px 22px 26px / 24px 20px 28px 22px;
    box-shadow: 10px 12px 0 rgba(61, 57, 53, 0.1);
    transform: rotate(-1deg);
}

.feature-row:nth-child(even) .feature-visual-box {
    transform: rotate(1deg);
}

/* 和纸胶带装饰 */
.feature-visual-box::after {
    content: '';
    position: absolute;
    top: -15px;
    left: 40%;
    width: 100px;
    height: 35px;
    background: rgba(242, 138, 54, 0.25);
    border: 1px solid rgba(61, 57, 53, 0.1);
    transform: rotate(-3deg);
    backdrop-filter: blur(2px);
    border-radius: 4px;
}

.feature-visual-box img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    display: block;
}

.feature-text-box {
    flex: 0.8;
}

.feature-tag {
    display: inline-block;
    padding: 4px 14px;
    background: var(--sketch-accent-soft);
    color: var(--sketch-accent);
    border-radius: 999px;
    font-size: 14px;
    font-weight: 900;
    margin-bottom: 20px;
    border: 2px solid var(--sketch-ink);
}


.feature-text-box h3 {
    font-size: 36px;
    margin: 0 0 24px;
    color: var(--sketch-ink);
    line-height: 1.25;
    font-weight: 900;
}

.feature-text-box p {
    font-size: 18px;
    color: var(--sketch-ink-muted);
    line-height: 1.8;
    margin-bottom: 32px;
}

/* 次要功能矩阵网格 */
.feature-matrix-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.matrix-card {
    padding: 30px;
    background: #fff;
    border: 2px solid var(--sketch-ink);
    border-radius: 16px 22px 18px 20px;
    box-shadow: 5px 6px 0 rgba(61, 57, 53, 0.08);
    transition: transform 0.2s;
}

.matrix-card:hover {
    transform: translateY(-5px);
}

.matrix-card .icon-dot {
    width: 12px;
    height: 12px;
    background: var(--sketch-accent);
    border-radius: 50%;
    margin-bottom: 16px;
    box-shadow: 3px 3px 0 var(--sketch-ink);
}

.matrix-card h4 {
    font-size: 20px;
    margin: 0 0 10px;
    font-weight: 900;
}

.matrix-card p {
    font-size: 15px;
    color: var(--sketch-ink-muted);
    margin: 0;
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .feature-row, .feature-row:nth-child(even) {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }
    .feature-text-box h3 { font-size: 32px; }
}

/* --- 使用步骤模块 --- */
.steps-section {
    padding: 100px 0;
    text-align: center;
    background: rgba(242, 138, 54, 0.03);
    border-top: 2px dashed rgba(61, 57, 53, 0.1);
    border-bottom: 2px dashed rgba(61, 57, 53, 0.1);
    margin: 60px auto;
}

.steps-container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 60px;
    margin-top: 60px;
    flex-wrap: wrap;
}

.step-item {
    flex: 1;
    min-width: 200px;
    max-width: 280px;
    position: relative;
}

.step-number {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 900;
    color: #fff;
    background: var(--sketch-accent);
    border: 3px solid var(--sketch-ink);
    border-radius: 50% 40% 50% 45% / 45% 50% 40% 50%;
    box-shadow: 4px 5px 0 var(--sketch-ink);
}

/* --- SEO 资源中心（沉底样式） --- */
.seo-resource-center {
    margin-top: 100px;
    padding: 60px 0 0;
    border-top: 2px solid rgba(61, 57, 53, 0.06);
}

.seo-resource-center .section-title-sm {
    font-size: 14px;
    color: var(--sketch-ink-muted);
    margin-bottom: 40px;
    text-align: center;
    opacity: 0.5;
    letter-spacing: 4px;
    text-transform: uppercase;
}

.seo-grid-layout {
    opacity: 0.85;
    filter: grayscale(0.2);
    transition: opacity 0.3s, filter 0.3s;
}

.seo-grid-layout:hover {
    opacity: 1;
    filter: grayscale(0);
}

/* ==========================================================================
   V2 UI RECONSTRUCTION (完全重构样式)
   ========================================================================== */

/* 通用区头 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 900;
    color: var(--sketch-ink);
    margin-bottom: 15px;
    letter-spacing: -1px;
}

.section-header p {
    font-size: 18px;
    color: var(--sketch-ink-muted);
}

.section-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 50px;
}

.section-header-flex h2 {
    font-size: 42px;
    font-weight: 900;
    color: var(--sketch-ink);
    margin: 0 0 10px;
}

.section-header-flex p {
    font-size: 16px;
    margin: 0;
}

section[id] {
    scroll-margin-top: 120px;
}

/* =========================================
   V2 Layout & Helper Classes (Refactored)
   ========================================= */
.v2-container {
    max-width: 1504px;
    margin: 0 auto;
    padding: 60px 20px;
}
.pt-100 { padding-top: 100px !important; }
.pb-80 { padding-bottom: 80px !important; }
.p-100 { padding: 100px 20px !important; }
.p-80 { padding: 80px 20px !important; }

/* Refactored Layouts */
.feature-row { display: flex; align-items: center; gap: 120px; margin-bottom: 160px; }
.feature-row.reverse { flex-direction: row-reverse; }
.feature-visual-box, .feature-text-box { flex: 1; }
.feature-visual-box img { width: 100%; border-radius: 12px; border: 2px solid var(--sketch-ink); box-shadow: 15px 15px 0 rgba(61, 57, 53, 0.05); }

.comparison-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.compare-card { padding: 40px 50px; border: 3px solid var(--sketch-ink); border-radius: 20px; display: flex; flex-direction: column; }
.compare-card.bad { box-shadow: 8px 8px 0 rgba(61, 57, 53, 0.1); background: #fdfbf7; }
.compare-card.good { background: #fff; transform: scale(1.05); box-shadow: 12px 12px 0 var(--sketch-accent); }
.compare-icon { font-size: 40px; margin-bottom: 15px; }
.compare-title { font-size: 24px; font-weight: 900; margin-bottom: 30px; text-align: center; }
.compare-list { list-style: none; padding: 0; margin: 0; flex-grow: 1; display: flex; flex-direction: column; justify-content: center; }
.compare-list li { margin-bottom: 20px; font-size: 16px; color: var(--sketch-ink); line-height: 1.6; position: relative; padding-left: 30px; }
.compare-card.bad .compare-list li::before { content: '✕'; position: absolute; left: 0; color: #ff4d4f; font-weight: 900; font-size: 18px; }
.compare-card.good .compare-list li::before { content: '✓'; position: absolute; left: 0; color: #52c41a; font-weight: 900; font-size: 18px; }

/* Updates for Comparison sleek-img-card */
.sleek-img-card { padding: 0 !important; overflow: hidden; justify-content: flex-start; }
.compare-img { width: 100%; height: 280px; border-bottom: 3px solid var(--sketch-ink); background: #fdfbf7; }
.compare-img img { width: 100%; height: 100%; object-fit: cover; }
.compare-content { padding: 35px; text-align: center; display: flex; flex-direction: column; justify-content: center; flex-grow: 1; }
.compare-title { margin-bottom: 15px; }
.compare-desc { font-size: 16px; line-height: 1.8; color: var(--sketch-ink-muted); margin: 0; }

/* Bento Matrix SVG Icons */
.svg-icon-wrap { width: 50px; height: 50px; margin-bottom: 20px; color: var(--sketch-accent); background: rgba(242, 138, 54, 0.15); border-radius: 14px; display: flex; align-items: center; justify-content: center; border: 1px solid rgba(242, 138, 54, 0.3); }
.svg-icon-wrap svg { width: 26px; height: 26px; }

.section-header.text-center { text-align: center; margin-bottom: 60px; }
.section-header h2.text-h2 { font-size: 42px; font-weight: 900; margin-bottom: 15px; }
.section-header p.text-p { font-size: 18px; color: var(--sketch-ink-muted); }
.section-header-flex.sb-end { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 50px; }

/* 1. 超维首屏 (Hero Bento) */
.hero-bento {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: center;
    padding: 80px 0 120px;
}

.badge-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(242, 138, 54, 0.15);
    color: var(--sketch-accent);
    font-weight: 800;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 25px;
    border: 1px solid rgba(242, 138, 54, 0.3);
}

.hero-title {
    font-size: 64px;
    font-weight: 900;
    line-height: 1.1;
    color: var(--sketch-ink);
    margin-bottom: 30px;
    white-space: nowrap; /* 强制标题不换行 */
}

.hero-title span {
    color: var(--sketch-accent);
    position: relative;
    display: inline-block;
}

.hero-title span::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 12px;
    background: rgba(242, 138, 54, 0.3);
    border-radius: 10px;
    z-index: -1;
    transform: rotate(-1deg);
}

.hero-subtitle {
    font-size: 22px;
    line-height: 1.8;
    color: var(--sketch-ink-muted);
    margin-bottom: 50px;
    max-width: 580px; /* 描述允许换行且宽度更开阔 */
}

.mega-btn {
    font-size: 22px !important;
    padding: 20px 50px !important;
    border-radius: 35px 15px 35px 15px / 15px 35px 15px 35px !important;
    box-shadow: 8px 8px 0 rgba(242, 138, 54, 0.3) !important;
    margin-bottom: 30px;
}

.hero-stats {
    display: flex;
    gap: 30px;
    font-size: 15px;
    font-weight: 700;
    color: var(--sketch-ink-muted);
}

.hero-visual-collage {
    position: relative;
    height: 600px;
}

.collage-item {
    position: absolute;
    border: 3px solid var(--sketch-ink);
    background: #fff;
    padding: 10px;
    border-radius: 12px;
    box-shadow: 12px 12px 0 rgba(61, 57, 53, 0.1);
    transition: transform 0.4s ease;
}

.collage-item img {
    width: 100%;
    height: auto;
    border-radius: 6px;
    display: block;
}

.collage-item:hover {
    transform: scale(1.05) translateY(-10px) !important;
    z-index: 10;
}

.center-item {
    width: 320px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-2deg);
    z-index: 3;
}

.float-left {
    width: 240px;
    top: 15%;
    left: 0;
    transform: rotate(-8deg);
    z-index: 2;
    opacity: 0.9;
}

.float-right {
    width: 260px;
    bottom: 10%;
    right: 0;
    transform: rotate(6deg);
    z-index: 4;
}

/* 2. 沉浸式创作流 (Workflow) */
.workflow-section {
    padding: 80px 0;
    border-top: 1px dashed rgba(61, 57, 53, 0.2);
}

.workflow-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    position: relative;
}


.workflow-card {
    background: #fff;
    border: 3px solid var(--sketch-ink);
    border-radius: 20px;
    padding: 40px 30px;
    position: relative;
    z-index: 1;
    box-shadow: 10px 10px 0 rgba(61, 57, 53, 0.05);
    transition: transform 0.3s;
}

/* Sleek workflow card overrides */
.workflow-card.sleek-card { padding: 0; }
.wf-visual.sleek-visual { height: 240px; margin-bottom: 0; border-radius: 17px 17px 0 0; border-bottom: 2px solid var(--sketch-ink); background: #fdfbf7; }
.wf-visual.sleek-visual img { width: 100%; height: 100%; object-fit: cover; }
.wf-content { padding: 30px 25px; }

.workflow-card:hover {
    transform: translateY(-10px);
    box-shadow: 10px 15px 0 rgba(242, 138, 54, 0.2);
}

.step-badge {
    position: absolute;
    top: -20px;
    left: 30px;
    background: var(--sketch-accent);
    color: #fff;
    font-size: 16px;
    font-weight: 900;
    padding: 8px 20px;
    border-radius: 30px;
    border: 2px solid var(--sketch-ink);
    z-index: 2;
}

.wf-visual {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    border-radius: 12px;
    background: #fdfbf7;
    overflow: hidden;
}

.wf-visual img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.workflow-card h3, .wf-content h3 {
    font-size: 24px;
    font-weight: 900;
    margin-bottom: 15px;
}

.workflow-card p, .wf-content p {
    font-size: 15px;
    line-height: 1.6;
    color: var(--sketch-ink-muted);
    margin-bottom: 20px;
}

.wf-list {
    list-style: none;
    padding: 0;
}

.wf-list li {
    font-size: 14px;
    font-weight: 700;
    color: var(--sketch-ink);
    margin-bottom: 8px;
}

/* 4. 艺术展览画廊 (Gallery Masonry) */
.gallery-section {
    padding: 80px 0;
}

.gallery-masonry {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.gallery-card {
    background: #fff;
    border: 2px solid var(--sketch-ink);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 6px 6px 0 rgba(61, 57, 53, 0.1);
}

.gallery-card:hover {
    transform: translateY(-8px);
    box-shadow: 12px 12px 0 rgba(242, 138, 54, 0.2);
    border-color: var(--sketch-accent);
}

.gc-img {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    overflow: hidden;
    border-bottom: 2px solid var(--sketch-ink);
}

.gc-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.gallery-card:hover .gc-img img {
    transform: scale(1.05);
}

.gc-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.gallery-card:hover .gc-overlay {
    opacity: 1;
}

.gc-btn {
    background: #fff;
    color: var(--sketch-ink);
    border: 2px solid var(--sketch-ink);
    padding: 10px 24px;
    font-weight: 800;
    border-radius: 20px;
    cursor: pointer;
    transform: translateY(20px);
    transition: transform 0.3s;
}

.gallery-card:hover .gc-btn {
    transform: translateY(0);
}

.gc-info {
    padding: 20px;
}

.gc-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 800;
    color: var(--sketch-accent);
    margin-bottom: 10px;
}

.gc-info h3 {
    font-size: 18px;
    font-weight: 900;
    margin: 0 0 10px;
    line-height: 1.4;
}

.gc-desc {
    font-size: 14px;
    color: var(--sketch-ink-muted);
    line-height: 1.5;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 5. 核心功能介绍 (Core Features - Exquisite Refactoring) */
.core-features-section {
    padding: 30px 0;
    margin: 10px auto;
}

.core-features-section .section-header {
    margin-bottom: 30px !important;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.bento-item {
    display: flex;
    align-items: center;
    gap: 22px;
    padding: 15px 20px;
    background: #fff;
    border: 1px solid rgba(61, 57, 53, 0.08);
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.bento-item:hover {
    border-color: var(--sketch-accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(242, 138, 54, 0.08);
}

.svg-icon-wrap {
    width: 42px;
    height: 42px;
    margin-bottom: 0;
    flex-shrink: 0;
    background: rgba(242, 138, 54, 0.08);
    border: none;
    border-radius: 10px;
}

.bento-text h4 {
    font-size: 16px;
    font-weight: 900;
    margin: 0 0 2px;
    color: var(--sketch-ink);
}

.bento-text p {
    font-size: 13px;
    color: var(--sketch-ink-muted);
    margin: 0;
    line-height: 1.4;
}

.b-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.bento-item h4 {
    font-size: 20px;
    font-weight: 900;
    margin: 0 0 12px;
}

.bento-item p {
    font-size: 15px;
    color: var(--sketch-ink-muted);
    line-height: 1.6;
    margin: 0;
}

/* 6. 巨型资源中心 (Mega Hub) */
.mega-hub-section {
    padding: 100px 0;
    border-top: 2px dashed rgba(61, 57, 53, 0.2);
}

.hub-header {
    text-align: center;
    margin-bottom: 60px;
}

.hub-header h2 {
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 15px;
}

.hub-header p {
    font-size: 18px;
    color: var(--sketch-ink-muted);
}

/* --- 6. 专题看板 (Hub Dashboard - Ultra Compact) --- */
.hub-dashboard {
    display: grid;
    grid-template-columns: 1fr 1.6fr 1fr;
    gap: 50px;
    background: #fff;
    padding: 40px;
    border: 3px solid var(--sketch-ink);
    border-radius: 30px;
    box-shadow: 15px 15px 0 rgba(61, 57, 53, 0.05);
    margin-top: 30px;
    align-items: stretch; /* 确保高度一致，无缺口 */
}

.hub-sub-header { margin-bottom: 20px; border-bottom: 2px solid rgba(61, 57, 53, 0.05); padding-bottom: 10px; }
.sub-label { font-size: 10px; font-weight: 900; letter-spacing: 2px; color: var(--sketch-accent); display: block; margin-bottom: 2px; text-transform: uppercase; }
.sub-title { font-size: 18px; font-weight: 900; color: var(--sketch-ink); margin: 0; }

/* Topics Column */
.dense-topic-list { display: flex; flex-direction: column; gap: 10px; }
.dense-topic-item { display: flex; gap: 10px; text-decoration: none; padding: 8px; border-radius: 8px; transition: all 0.2s; border: 1px solid transparent; }
.dense-topic-item:hover { background: var(--sketch-accent-soft); border-color: rgba(242, 138, 54, 0.1); transform: translateX(5px); }
.dti-dot { width: 5px; height: 5px; background: var(--sketch-accent); border-radius: 50%; margin-top: 8px; flex-shrink: 0; }
.dti-body h4 { font-size: 14px; font-weight: 900; color: var(--sketch-ink); margin: 0 0 2px; }
.dti-body p { font-size: 12px; color: var(--sketch-ink-muted); margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 160px; }

/* Categories Column */
.dense-cat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; align-content: start; }
.dense-cat-tag { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: #fdfbf7; border: 1px solid rgba(61, 57, 53, 0.1); border-radius: 8px; text-decoration: none; transition: all 0.2s; }
.dense-cat-tag:hover { background: #fff; border-color: var(--sketch-ink); transform: scale(1.02); box-shadow: 3px 3px 0 rgba(61, 57, 53, 0.08); }
.dct-name { font-size: 13px; font-weight: 800; color: var(--sketch-ink); }
.dct-count { font-size: 10px; font-weight: 900; padding: 1px 6px; background: rgba(61, 57, 53, 0.05); border-radius: 10px; color: var(--sketch-ink-muted); }

/* Entrance Column */
.mini-mega-stack { display: flex; flex-direction: column; gap: 12px; height: 100%; justify-content: flex-start; }
.mini-mega-btn { display: flex; justify-content: space-between; align-items: center; padding: 15px 25px; border-radius: 12px; border: 2px solid var(--sketch-ink); text-decoration: none; transition: all 0.2s ease; }

.mini-mega-btn.primary { background: #fff; color: var(--sketch-ink); box-shadow: 4px 4px 0 rgba(61, 57, 53, 0.05); }
.mini-mega-btn.secondary { background: var(--sketch-ink); color: #fff; box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.1); }

.mini-mega-btn .mmb-text strong { display: block; font-size: 15px; font-weight: 900; }
.mini-mega-btn .mmb-text span { font-size: 11px; opacity: 0.7; }
.mini-mega-btn .mmb-arrow { font-size: 18px; font-weight: 900; }

.mini-mega-btn:hover { transform: translate(-1px, -1px); }
.mini-mega-btn.primary:hover { box-shadow: 6px 6px 0 var(--sketch-accent); }
.mini-mega-btn.secondary:hover { background: #4a4540; box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.2); }


/* Section Overrides */
.gallery-section { padding: 80px 0 !important; }
.mega-hub-section { padding: 100px 0 !important; }

@media (max-width: 768px) {
    .gallery-section { padding: 40px 0 !important; }
    .mega-hub-section { padding: 40px 0 !important; }
}

/* 恢复最初版本首屏悬浮样式 */
.sketch-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
    min-height: 560px;
    padding: 100px 0 80px; /* 补回桌面端间距 */
}

.hero-content {
    flex: 1.2;
    padding-right: 40px;
}

.hero-title {
    font-size: 72px;
    font-weight: 900;
    line-height: 1.15;
    color: var(--sketch-ink);
    margin-bottom: 25px;
}

.hero-title span {
    color: var(--sketch-accent);
    position: relative;
    display: inline-block;
}

.hero-title span::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 12px;
    background: rgba(242, 138, 54, 0.3);
    border-radius: 10px;
    z-index: -1;
    transform: rotate(-1deg);
}

.hero-subtitle {
    font-size: 22px;
    line-height: 1.8;
    color: var(--sketch-ink-muted);
    margin-bottom: 40px;
    max-width: 90%;
}

.hero-visual {
    flex: 1;
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.paper-stack {
    position: relative;
    width: 100%;
    height: 100%;
}

.paper-stack img {
    position: absolute;
    border: 4px solid #fff;
    border-radius: 8px;
    box-shadow: 10px 10px 20px rgba(61, 57, 53, 0.15);
    background: #fff;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.paper-stack img:hover {
    transform: scale(1.08) translateY(-10px) !important;
    box-shadow: 15px 15px 30px rgba(242, 138, 54, 0.2);
    z-index: 10 !important;
}

.paper-1 {
    width: 420px;
    top: 10%;
    left: 0;
    transform: rotate(-8deg);
    z-index: 1;
    opacity: 0.9;
}

.paper-2 {
    width: 440px;
    top: 20%;
    right: 0;
    transform: rotate(6deg);
    z-index: 2;
    opacity: 0.95;
}

.paper-3 {
    width: 500px;
    top: 5%;
    left: 10%;
    transform: rotate(-2deg);
    z-index: 3;
    box-shadow: 15px 15px 35px rgba(61, 57, 53, 0.2);
}

/* ==========================================================================
   响应式适配：确保移动端与平板端的完美呈现
   ========================================================================== */

/* 1. 中屏适配 (1100px - 1200px) */
@media (max-width: 1200px) {
    .v2-container { width: min(100%, calc(100% - 60px)); }
    .hero-title { font-size: 56px; }
    .paper-1 { width: 340px; }
    .paper-2 { width: 360px; }
    .paper-3 { width: 400px; }
}

/* 2. 平板适配 (768px - 1024px) */
@media (max-width: 992px) {
    .sketch-hero {
        flex-direction: column;
        text-align: center;
        gap: 40px;
        padding-top: 60px !important;
    }

    .hero-content {
        padding-right: 0;
        max-width: 100%;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-visual {
        width: 100%;
        height: 380px;
    }

    .paper-stack {
        transform: scale(0.8);
    }

    /* 功能行堆叠 */
    .feature-row, .feature-row.reverse {
        flex-direction: column !important;
        gap: 40px;
        text-align: center;
    }

    .feature-visual-box, .feature-text-box {
        width: 100% !important;
    }

    .feature-benefits {
        display: inline-block;
        text-align: left;
    }

    .workflow-steps {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        max-width: 500px;
    }

    .compare-card.good {
        transform: scale(1);
    }

    .gallery-masonry {
        grid-template-columns: repeat(2, 1fr);
    }

    .hub-dashboard {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* 3. 手机端适配 (max-width: 768px) */
@media (max-width: 768px) {
    .sketch-stage { padding-top: 15px; }
    .v2-container { width: min(100%, calc(100% - 32px)); }
    
    .sketch-hero {
        padding: 15px 0 !important; /* 彻底压缩手机端间距 */
        min-height: auto !important;
        gap: 10px;
    }

    .hero-title {
        font-size: 28px !important; /* 进一步缩小，确保更靠上 */
        white-space: normal !important;
        text-align: center;
        margin-bottom: 10px;
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: 14px;
        line-height: 1.5;
        text-align: center;
        max-width: 100%;
        margin-bottom: 15px;
        padding: 0;
        opacity: 0.85;
    }

    .hero-visual {
        height: 120px !important; /* 强制高度 */
        min-height: 0 !important;  /* 彻底干掉 430px 的最小高度限制 */
        margin-top: 0;
        margin-bottom: 5px;
        order: -1; 
        overflow: visible;
    }

    .paper-stack {
        transform: scale(0.38) translateY(-60px); /* 进一步缩小图片并上移 */
        display: flex;
        justify-content: center;
    }
    
    /* 手机端隐藏所有重复的扫码按钮 */
    .sketch-btn-primary, 
    .sketch-btn-outline,
    .hero-actions .mega-btn,
    .feature-text-box .sketch-btn-primary,
    .workflow-card .sketch-btn-primary,
    .gallery-section .sketch-btn-outline {
        display: none !important;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-stats {
        font-size: 12px;
        margin-top: 10px;
        opacity: 0.8;
    }

    .text-h2 {
        font-size: 26px;
    }

    /* 功能区域优化 */
    .features-section { padding: 40px 0; }
    .feature-row { margin-bottom: 60px !important; }
    .feature-text-box h3 { font-size: 24px; margin-top: 15px; }
    .feature-tag { margin: 0 auto; }
    
    /* 手机端隐藏功能块中的重复扫码按钮 */
    .feature-text-box .sketch-btn-primary {
        display: none;
    }

    .gallery-masonry {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .bento-grid {
        grid-template-columns: 1fr;
    }

    .hub-header h2 { font-size: 22px; }
    
    .paper-stack img {
        box-shadow: 5px 5px 15px rgba(0,0,0,0.1);
    }

    /* 对比区优化 */
    .comparison-grid {
        gap: 30px;
    }
    .compare-card {
        padding: 20px;
    }
    .compare-img {
        height: 180px;
        margin-bottom: 15px;
    }
    .compare-title {
        font-size: 20px;
        margin-bottom: 10px;
    }
    .compare-desc {
        font-size: 14px;
        line-height: 1.6;
    }

    /* 流程区优化 */
    .workflow-card {
        padding: 20px;
    }
    .wf-visual {
        height: 180px;
        margin-bottom: 15px;
    }
    .wf-content h3 {
        font-size: 18px;
    }
    .wf-content p {
        font-size: 14px;
    }
}

/* 4. 小屏手机适配 (max-width: 480px) */
@media (max-width: 480px) {
    .sketch-hero {
        padding-top: 40px !important;
    }

    .paper-stack {
        transform: scale(0.5);
    }

    .hero-stats {
        font-size: 12px;
    }

    .feature-tag {
        font-size: 11px;
    }

    .feature-text-box h3 {
        font-size: 22px;
    }

    .workflow-card {
        padding: 20px;
    }

    .compare-card {
        padding: 25px;
    }
}