/* 海盐放映带：里番网以海盐白、深海墨蓝、珊瑚播放橘和电影编辑节奏构成不对称视频社区。 */
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@media (max-width:720px){body{font-size:15px}.nav-shell{min-height:68px}.brand-mark{width:38px;height:38px}.primary-nav{position:absolute;top:68px;left:0;right:0;background:var(--paper);display:none;flex-direction:column;align-items:stretch;padding:1rem 1.25rem;border-bottom:1px solid var(--line);box-shadow:0 14px 24px rgba(11,36,54,.1)}.primary-nav.is-open{display:flex}.primary-nav a{font-size:.82rem;padding:.65rem 0}.primary-nav a:after{display:none}.menu-toggle{display:block}.search-ribbon{display:block;padding:.55rem 1rem}.site-search button{font-size:.67rem}.search-note{white-space:normal;margin-top:.4rem;font-size:.62rem}.hero-section{min-height:580px}.hero-image{min-height:580px}.hero-copy{padding:6rem 1.2rem 3rem;background:linear-gradient(90deg,rgba(11,36,54,.88),rgba(11,36,54,.43),rgba(11,36,54,.1))}.hero-copy h1{font-size:3rem}.hero-copy>p:not(.hero-code){font-size:.81rem}.hero-ticker{left:1.2rem;bottom:1rem;width:calc(100% - 2.4rem)}.statement-grid,.video-grid,.expert-grid,.feedback-grid,.partner-wall,.community-matrix,.tool-rail,.mini-video-row{grid-template-columns:1fr}.statement-section{padding:3.5rem 1.2rem}.statement-section h2{font-size:2.25rem}.section-heading{grid-template-columns:1fr;gap:.7rem;margin-bottom:1.7rem}.section-heading h2{font-size:2.3rem}.featured-section,.expert-section,.faq-section,.feedback-section{padding:3.5rem 1.2rem}.video-thumb{min-height:200px}.split-feature,.ai-section,.community-section,.contact-section,.watch-layout{grid-template-columns:1fr}.feature-image,.ai-image,.community-visual,.contact-photo{min-height:340px}.production-feature .feature-image,.ai-section .ai-image,.contact-section .contact-photo{order:2}.feature-copy,.ai-copy,.community-copy,.contact-copy{padding:3.4rem 1.2rem}.ai-copy h2,.community-copy h2,.feature-copy h2{font-size:2.3rem}.howto-section{padding:3.5rem 1.2rem;grid-template-columns:1fr;gap:1.5rem}.howto-section h2,.partners-section h2,.feedback-section h2{font-size:2.35rem}.partners-section{padding:3.5rem 1.2rem}.footer-main{padding:2.5rem 1.2rem;grid-template-columns:1fr 1fr;gap:1.6rem}.footer-brand{grid-column:1/-1}.footer-bottom{padding:1rem 1.2rem;align-items:flex-start;flex-direction:column}.page-intro{padding:3rem 1.2rem}.page-intro h1{font-size:2.6rem}.catalog-section,.process-board,.essay-layout{grid-template-columns:1fr;margin:0;padding:3rem 1.2rem;gap:2rem}.catalog-aside{position:static}.catalog-grid{grid-template-columns:1fr}.feature-banner{padding:3rem 1.2rem;display:block}.feature-banner .button{margin-top:1rem}.community-matrix{padding:1.2rem}.community-matrix .matrix-intro{grid-row:auto}.rule-banner{padding:3rem 1.2rem;grid-template-columns:1fr;gap:1.5rem}.tool-rail{padding:1.2rem}.essay-layout{padding:0;margin:2rem 1.2rem}.essay-copy,.essay-notes{padding:2rem 1.3rem}.watch-stage{padding:1.2rem}.watch-copy{border-left:0;border-top:1px solid rgba(255,255,255,.2);padding:2.5rem 1.2rem}.watch-copy h1{font-size:2.35rem}.related-section h2{font-size:2.2rem}.mini-video-row{margin:0 1.2rem 3rem}}
@media (prefers-reduced-motion:no-preference){.video-card,.expert-card,.tool-rail article{transition:transform .2s var(--ease),box-shadow .2s var(--ease)}.video-card:hover,.expert-card:hover,.tool-rail article:hover{transform:translateY(-4px);box-shadow:0 12px 20px rgba(11,36,54,.1)}}