/* ===== PAGE HERO ===== */
.page-hero {
    padding: 56px 0 48px;
    background: linear-gradient(160deg, #FFF4EB 0%, #FFF8F3 55%, #FFF2E5 100%);
    position: relative; overflow: hidden;
}
.page-hero::before {
    content: ''; position: absolute; top:-80px; right:-60px;
    width: 360px; height: 360px; border-radius: 50%;
    background: radial-gradient(circle, rgba(240,114,38,.12), transparent 70%);
    pointer-events: none;
}
.page-hero::after {
    content: ''; position: absolute; bottom:-60px; left:5%;
    width: 240px; height: 240px; border-radius: 50%;
    background: radial-gradient(circle, rgba(255,179,71,.14), transparent 70%);
    pointer-events: none;
}
.format-badge {
    display: inline-flex; align-items: center; gap: 6px;
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent2));
    color: #fff; font-family: var(--font-head); font-weight: 800;
    font-size: .78rem; letter-spacing: 1.8px; text-transform: uppercase;
    padding: 4px 14px; border-radius: 99px; margin-bottom: 16px;
    box-shadow: 0 4px 14px rgba(240,114,38,.35);
}
.page-hero h1 {
    font-size: clamp(1.9rem, 4.5vw, 3.2rem);
    letter-spacing: -1.2px; line-height: 1.15;
    color: var(--c-text); margin-bottom: 14px;
}
.page-hero h1 .hl {
    background: linear-gradient(120deg, var(--c-primary-d), var(--c-accent2));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.page-hero-desc {
    font-size: 1rem; color: var(--c-text-2); max-width: 600px; line-height: 1.75; margin-bottom: 24px;
}
/* Breadcrumb */
.breadcrumb { background: none; padding: 0; margin-bottom: 18px; }
.breadcrumb-item { font-size: .83rem; color: var(--c-text-muted); font-family: var(--font-head); }
.breadcrumb-item a { color: var(--c-primary); }
.breadcrumb-item.active { color: var(--c-text-muted); }
.breadcrumb-item + .breadcrumb-item::before { color: var(--c-text-muted); }

/* Advantage pills in hero */
/*  .hero-adv-pills { display: flex; flex-wrap: wrap; gap: 8px; }
  .hero-adv-pill {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(255,255,255,.85); border: 1px solid var(--c-border);
    border-radius: 99px; padding: 5px 13px;
    font-size: .8rem; font-weight: 600; color: var(--c-text-2);
    backdrop-filter: blur(4px); box-shadow: 0 2px 10px var(--c-shadow);
  }
  .hero-adv-pill i { color: var(--c-primary); font-size: .82rem; }*/

/* ===== SECTION COMMON ===== */
section { padding: 64px 0; }
.section-tag {
    display: inline-block; font-family: var(--font-head); font-weight: 700;
    font-size: .75rem; letter-spacing: 1.5px; text-transform: uppercase;
    color: var(--c-primary); background: rgba(240,114,38,.1);
    border: 1px solid rgba(240,114,38,.2); border-radius: 99px; padding: 4px 14px; margin-bottom: 10px;
}
.section-title {
    font-size: clamp(1.6rem, 3vw, 2.4rem); letter-spacing: -.8px;
    line-height: 1.2; color: var(--c-text); margin-bottom: 10px;
}
.section-subtitle { font-size: .95rem; color: var(--c-text-muted); line-height: 1.7; max-width: 520px; }

/* ===== UPLOAD SECTION ===== */
.upload-section {
    background: var(--c-bg);
    padding-top: 0;
}
.upload-wrapper {
    background: var(--c-surface);
    border-radius: var(--radius-xl);
    padding: 36px;
    box-shadow: 0 12px 48px rgba(240,114,38,.09), 0 2px 16px rgba(0,0,0,.04);
    border: 1px solid rgba(240,114,38,.12);
}

/* Drop Zone */
.drop-zone {
    border: 2.5px dashed rgba(240,114,38,.35);
    border-radius: var(--radius-lg);
    padding: 52px 32px;
    text-align: center;
    background: linear-gradient(135deg, rgba(240,114,38,.03), rgba(255,179,71,.03));
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.drop-zone::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(240,114,38,.05), transparent 65%);
}
.drop-zone.dragover {
    border-color: var(--c-primary);
    background: rgba(240,114,38,.07);
    transform: scale(1.01);
}
.drop-icon-wrap {
    width: 72px; height: 72px;
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent2));
    border-radius: 20px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.9rem; color: #fff; margin-bottom: 18px;
    box-shadow: 0 8px 28px rgba(240,114,38,.38);
    position: relative; z-index: 1;
}
.drop-title { font-family: var(--font-head); font-weight: 800; font-size: 1.25rem; color: var(--c-text); margin-bottom: 6px; position: relative; z-index: 1; }
.drop-hint  { font-size: .88rem; color: var(--c-text-muted); margin-bottom: 20px; position: relative; z-index: 1; }
.btn-select-file {
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent2));
    color: #fff; font-family: var(--font-head); font-weight: 700; font-size: .95rem;
    padding: 12px 28px; border-radius: var(--radius-md); border: none; cursor: pointer;
    transition: var(--transition); box-shadow: 0 4px 18px rgba(240,114,38,.36);
    display: inline-flex; align-items: center; gap: 8px; position: relative; z-index: 1;
}
.btn-select-file:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(240,114,38,.48); }

/* Format list inside drop zone */
.supported-formats {
    display: flex; flex-wrap: wrap; gap: 5px;
    justify-content: center; margin-top: 18px; position: relative; z-index: 1;
}
.sfmt {
    background: rgba(240,114,38,.09); color: var(--c-primary-d);
    font-family: var(--font-head); font-weight: 700; font-size: .68rem;
    letter-spacing: .4px; text-transform: uppercase;
    padding: 2px 8px; border-radius: 6px;
}

/* File limits info row */
.file-limits {
    display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 20px;
    margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--c-border);
}
.limit-item {
    display: flex; align-items: center; gap: 6px;
    font-size: .82rem; color: var(--c-text-muted); font-family: var(--font-head);
}
.limit-item i { color: var(--c-primary); }
.limit-item strong { color: var(--c-text-2); }

/* Inline advantages below upload */
.upload-advantages {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 10px; margin-top: 24px;
}
@media(min-width:768px) { .upload-advantages { grid-template-columns: repeat(4, 1fr); } }
.ua-item {
    display: flex; align-items: center; gap: 8px;
    background: var(--c-bg); border: 1px solid var(--c-border);
    border-radius: var(--radius-sm); padding: 10px 12px;
    font-size: .8rem; font-weight: 600; color: var(--c-text-2);
    font-family: var(--font-head);
}
.ua-item i { color: var(--c-primary); font-size: .95rem; flex-shrink: 0; }

/* ===== PREVIEW SECTION ===== */
.preview-section {
    background: var(--c-bg);
    padding-top: 8px;
    display: none; /* shown via JS */
}
.preview-header {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 12px; margin-bottom: 20px;
}
.preview-title { font-family: var(--font-head); font-size: 1rem; font-weight: 700; color: var(--c-text); }
.preview-count {
    font-family: var(--font-head); font-weight: 700; font-size: .82rem;
    background: rgba(240,114,38,.1); color: var(--c-primary-d);
    padding: 3px 10px; border-radius: 99px; margin-left: 8px;
}
.preview-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.btn-sort, .btn-add-more, .btn-clear-all {
    font-family: var(--font-head); font-weight: 600; font-size: .82rem;
    padding: 7px 14px; border-radius: var(--radius-sm); border: 1.5px solid var(--c-border);
    background: var(--c-surface); color: var(--c-text-2); cursor: pointer;
    transition: var(--transition); display: inline-flex; align-items: center; gap: 5px;
}
.btn-sort:hover, .btn-add-more:hover { border-color: var(--c-primary); color: var(--c-primary); }
.btn-clear-all:hover { border-color: var(--c-red); color: var(--c-red); }

/* Image Preview Grid */
.preview-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}
@media(min-width:480px)  { .preview-grid { grid-template-columns: repeat(3, 1fr); } }
@media(min-width:768px)  { .preview-grid { grid-template-columns: repeat(4, 1fr); } }
@media(min-width:992px)  { .preview-grid { grid-template-columns: repeat(6, 1fr); } }
@media(min-width:1200px) { .preview-grid { grid-template-columns: repeat(8, 1fr); } }

.img-card {
    background: var(--c-surface); border: 1.5px solid rgba(240,114,38,.12);
    border-radius: var(--radius-md); overflow: hidden;
    transition: var(--transition); position: relative;
}
.img-card:hover { border-color: rgba(240,114,38,.3); box-shadow: 0 4px 20px rgba(240,114,38,.1); }
.img-thumb-wrap {
    aspect-ratio: 1/1; overflow: hidden;
    background: repeating-conic-gradient(#f0f0f0 0% 25%, #fff 0% 50%) 0 0 / 12px 12px;
    position: relative;
}
.img-thumb-wrap img {
    width: 100%; height: 100%; object-fit: cover; display: block;
    transition: transform .35s ease;
}
.img-card:hover .img-thumb-wrap img { transform: scale(1.05); }
.img-remove-btn {
    position: absolute; top: 5px; right: 5px;
    width: 22px; height: 22px; border-radius: 50%;
    background: rgba(0,0,0,.55); color: #fff; border: none; cursor: pointer;
    display: flex; align-items: center; justify-content: center; font-size: .65rem;
    opacity: 0; transition: var(--transition); z-index: 2;
}
.img-card:hover .img-remove-btn { opacity: 1; }
.img-remove-btn:hover { background: var(--c-red); transform: scale(1.1); }
.img-info {
    padding: 8px 9px 10px;
}
.img-name {
    font-family: var(--font-head); font-weight: 600; font-size: .72rem;
    color: var(--c-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    margin-bottom: 3px;
}
.img-meta {
    font-size: .67rem; color: var(--c-text-muted); line-height: 1.4;
}
.img-meta span { display: block; }

/* Compress button area */
.compress-btn-area {
    margin-top: 24px; display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 14px;
}
.compress-summary {
    font-size: .85rem; color: var(--c-text-muted); font-family: var(--font-head);
}
.compress-summary strong { color: var(--c-text-2); }
.btn-compress {
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent2));
    color: #fff; font-family: var(--font-head); font-weight: 800; font-size: 1.05rem;
    padding: 14px 36px; border-radius: var(--radius-md); border: none; cursor: pointer;
    transition: var(--transition); box-shadow: 0 6px 24px rgba(240,114,38,.4);
    display: inline-flex; align-items: center; gap: 10px; position: relative; overflow: hidden;
}
.btn-compress::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,.15), transparent 60%);
}
.btn-compress:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(240,114,38,.5); }
.btn-compress:disabled { opacity: .6; transform: none; cursor: not-allowed; }

/* ===== OVERLAYS ===== */
.overlay-mask {
    position: fixed; inset: 0; z-index: 1050;
    background: rgba(20,8,2,.75);
    backdrop-filter: blur(6px);
    display: flex; align-items: center; justify-content: center;
}
.overlay-mask.hidden { display: none; }
.overlay-card {
    background: var(--c-surface); border-radius: var(--radius-xl);
    padding: 44px 40px; max-width: 480px; width: 92%; text-align: center;
    box-shadow: 0 24px 80px rgba(0,0,0,.25);
    position: relative;
}
.overlay-icon {
    width: 68px; height: 68px;
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent2));
    border-radius: 20px; display: inline-flex; align-items: center; justify-content: center;
    font-size: 1.8rem; color: #fff; margin-bottom: 20px;
    box-shadow: 0 8px 28px rgba(240,114,38,.4);
}
.overlay-title {
    font-family: var(--font-head); font-weight: 800; font-size: 1.35rem;
    color: var(--c-text); margin-bottom: 6px;
}
.overlay-hint { font-size: .88rem; color: var(--c-text-muted); margin-bottom: 28px; }

/* Progress bar */
.progress-wrap { margin-bottom: 18px; }
.progress-label {
    display: flex; justify-content: space-between; align-items: center;
    font-family: var(--font-head); font-size: .82rem; color: var(--c-text-2);
    margin-bottom: 7px;
}
.progress-label .pct { font-weight: 800; color: var(--c-primary); font-size: 1rem; }
.progress-bar-track {
    height: 9px; background: #F0E6DC; border-radius: 99px; overflow: hidden;
}
.progress-bar-fill {
    height: 100%; border-radius: 99px;
    background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
    transition: width .3s ease;
    position: relative; overflow: hidden;
}
.progress-bar-fill::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.3), transparent);
    animation: shimmer 1.5s infinite;
}
@keyframes shimmer { 0%{transform:translateX(-100%)} 100%{transform:translateX(100%)} }

/* Upload stats row */
.upload-stats {
    display: flex; justify-content: center; gap: 24px; flex-wrap: wrap;
    margin-top: 14px;
}
.stat-item { text-align: center; }
.stat-val { font-family: var(--font-head); font-weight: 800; font-size: 1rem; color: var(--c-text); }
.stat-lbl { font-size: .73rem; color: var(--c-text-muted); margin-top: 1px; }

/* Compress spinner */
.compress-spinner {
    width: 56px; height: 56px; border-radius: 50%;
    border: 4px solid rgba(240,114,38,.15);
    border-top-color: var(--c-primary);
    animation: spin 1.1s linear infinite;
    margin: 0 auto 20px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== HOW IT WORKS ===== */
.how-section { background: var(--c-bg2); }
.step-flow {
    display: grid; grid-template-columns: 1fr;
    gap: 16px;
}
@media(min-width:768px) { .step-flow { grid-template-columns: repeat(3, 1fr); } }
.step-box {
    background: var(--c-surface); border: 1px solid var(--c-border);
    border-radius: var(--radius-lg); padding: 28px 24px;
    position: relative; transition: var(--transition);
    height: 100%;
}
.step-box:hover { box-shadow: 0 8px 32px rgba(240,114,38,.1); transform: translateY(-3px); }
.step-num {
    font-family: var(--font-head); font-weight: 900; font-size: 2.8rem;
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    line-height: 1; margin-bottom: 12px;
}
.step-icon { font-size: 1.4rem; margin-bottom: 8px; }
.step-name { font-family: var(--font-head); font-weight: 700; font-size: 1rem; color: var(--c-text); margin-bottom: 6px; }
.step-desc { font-size: .84rem; color: var(--c-text-muted); line-height: 1.6; }
/* Arrow between steps (desktop only) */
.step-box-wrap { position: relative; }
.step-box-wrap:not(:last-child)::after {
    content: '\F285';
    font-family: 'bootstrap-icons';
    position: absolute; right: -18px; top: 50%; transform: translateY(-50%);
    font-size: 1.1rem; color: var(--c-primary); opacity: .5;
    display: none;
}
@media(min-width:768px) { .step-box-wrap:not(:last-child)::after { display: block; } }

/* ===== WHY SECTION ===== */
.why-section { background: var(--c-bg); }
.adv-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px;
}
@media(min-width:768px) { .adv-grid { grid-template-columns: repeat(3, 1fr); } }
.adv-card {
    background: var(--c-surface); border: 1px solid rgba(240,114,38,.12);
    border-radius: var(--radius-lg); padding: 24px; transition: var(--transition);
    position: relative; overflow: hidden;
    height: 100%;
}
.adv-card::before {
    content: ''; position: absolute; top:0; left:0; right:0; height:3px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    opacity:0; transition: opacity .3s;
}
.adv-c1::before { background: linear-gradient(90deg,#F07226,#FFB347); }
.adv-c2::before { background: linear-gradient(90deg,#10B981,#34D399); }
.adv-c3::before { background: linear-gradient(90deg,#0EA5E9,#38BDF8); }
.adv-c4::before { background: linear-gradient(90deg,#A855F7,#C084FC); }
.adv-c5::before { background: linear-gradient(90deg,#F59E0B,#FCD34D); }
.adv-c6::before { background: linear-gradient(90deg,#EF4444,#F87171); }
.adv-card:hover { box-shadow: 0 8px 32px rgba(240,114,38,.1); transform: translateY(-3px); }
.adv-card:hover::before { opacity: 1; }
.adv-icon {
    width: 48px; height: 48px; border-radius: 13px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; margin-bottom: 14px;
}
.adv-i1 { background: rgba(240,114,38,.1); color: var(--c-primary); }
.adv-i2 { background: rgba(16,185,129,.1);  color: #10B981; }
.adv-i3 { background: rgba(14,165,233,.1);  color: #0EA5E9; }
.adv-i4 { background: rgba(168,85,247,.1);  color: #A855F7; }
.adv-i5 { background: rgba(245,158,11,.1);  color: #F59E0B; }
.adv-i6 { background: rgba(239,68,68,.1);   color: #EF4444; }
.adv-name { font-family: var(--font-head); font-weight: 700; font-size: .97rem; color: var(--c-text); margin-bottom: 7px; }
.adv-desc { font-size: .83rem; color: var(--c-text-muted); line-height: 1.65; }

/* ===== FAQ ===== */
.faq-section { background: var(--c-bg2); }
.faq-item {
    background: var(--c-surface); border: 1px solid rgba(240,114,38,.12);
    border-radius: var(--radius-md); margin-bottom: 10px; overflow: hidden;
    transition: var(--transition);
}
.faq-item:hover { border-color: rgba(240,114,38,.25); }
.faq-q {
    font-family: var(--font-head); font-weight: 600; font-size: .95rem;
    color: var(--c-text); padding: 18px 20px;
    display: flex; justify-content: space-between; align-items: center; gap: 12px;
    cursor: pointer; user-select: none; list-style: none;
}
.faq-q::marker, .faq-q::-webkit-details-marker { display: none; }
.faq-arrow {
    width: 28px; height: 28px; border-radius: 50%;
    background: rgba(240,114,38,.1); color: var(--c-primary);
    display: flex; align-items: center; justify-content: center;
    font-size: .85rem; flex-shrink: 0; transition: transform .3s ease;
}
details[open] .faq-arrow { transform: rotate(180deg); }
details[open] { border-color: rgba(240,114,38,.25); box-shadow: 0 4px 18px rgba(240,114,38,.08); }
details[open] .faq-item { /* handled above via details[open] selector */ }
.faq-a {
    font-size: .88rem; color: var(--c-text-2); line-height: 1.75;
    padding: 0 20px 18px; border-top: 1px solid var(--c-border);
    padding-top: 14px;
}

/* ===== SEO CONTENT BLOCK ===== */
.seo-content { background: var(--c-bg); }
.seo-prose {
    font-size: .93rem; color: var(--c-text-2); line-height: 1.85;
    /*max-width: 820px;*/
}
.seo-prose h2 { font-size: 1.35rem; color: var(--c-text); margin: 28px 0 10px; letter-spacing: -.4px; }
.seo-prose h3 { font-size: 1.1rem;  color: var(--c-text); margin: 20px 0 8px; }
.seo-prose p  { margin-bottom: 14px; }
.seo-prose ul { margin: 10px 0 14px 20px; }
.seo-prose ul li { margin-bottom: 6px; }
.seo-prose strong { color: var(--c-text); }

/* ===== ERROR TOAST ===== */
.error-toast {
    position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%);
    background: #1A1209; color: #fff; padding: 12px 22px;
    border-radius: var(--radius-md); font-size: .88rem; font-family: var(--font-head);
    box-shadow: 0 8px 32px rgba(0,0,0,.35); z-index: 2000;
    display: flex; align-items: center; gap: 10px; max-width: 92vw;
    animation: toastIn .35s ease;
}
.error-toast .et-icon { color: var(--c-red); font-size: 1.1rem; flex-shrink: 0; }
@keyframes toastIn { from { opacity:0; transform:translateX(-50%) translateY(16px); } to { opacity:1; transform:translateX(-50%) translateY(0); } }
.toast-hidden { display: none !important; }



/* ===== RTL ADJUSTMENTS ===== */
[dir="rtl"] .breadcrumb-item + .breadcrumb-item::before { float: right; margin-right: 0; margin-left: .5rem; padding-left: 0; padding-right: .5rem; }
[dir="rtl"] .progress-bar-fill { background: linear-gradient(270deg, var(--c-primary), var(--c-accent)); }
[dir="rtl"] .compress-btn-area { flex-direction: row-reverse; }
[dir="rtl"] .preview-header { flex-direction: row-reverse; }

/* ===== ANIMATIONS ===== */
.fade-up { opacity: 0; transform: translateY(28px); }
@media(prefers-reduced-motion: reduce) {
    .fade-up { opacity: 1; transform: none; }
    * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* 占位图容器样式 */
.img-thumb-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #fdfdfd;
    border: 1px dashed #e0e0e0;
    border-radius: 8px;
    height: 100%;
    width: 100%;
    color: #8c92a4;
    padding: 12px;
    text-align: center;
}

/* 占位图图标 */
.placeholder-icon {
    font-size: 1.8rem;
    color: #cfd4db;
    margin-bottom: 6px;
}

/* 格式文字 (如 TIFF, DNG) */
.placeholder-ext {
    font-weight: 700;
    font-size: 14px;
    color: #495057;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 优化提示语 */
.placeholder-hint {
    font-size: 11px;
    color: #adb5bd;
    margin-top: 4px;
    line-height: 1.2;
    white-space: nowrap;
}

/* 确保 img-thumb-wrap 内部能撑满 */
.img-thumb-wrap {
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}